A spraying tool for automobile parts

Abstract

The utility model provides a kind of spraying tool for automobile parts, belong to automobile parts spraying technical field, including base, the upper portion of base is provided with gantry support, the inside of gantry support is provided with tool support, the inside of tool support is provided with multiple long rods for installing workpiece and adjusting long rod;Adjusting long rod includes multiple arc plates, the inside of arc plate is provided with multiple T-shaped connecting columns, multiple arc plates are connected by T-shaped connecting column and elastic drawstring between;The inside of arc plate both ends is respectively provided with sub thread part, and the sub thread part of the corresponding end of multiple arc plates can be combined into a tapered screw hole, and the both ends of pipe body structure are respectively screwed with conical stud through tapered screw hole.The utility model through adjustable long rod, skid connection and stable structure, not only can effectively improve adaptability and efficiency, reduce shaking and shielding, but also can guarantee spraying quality, reduce cost.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts spraying technology, and in particular to a spraying fixture for automotive parts. Background Technology

[0002] Currently, in the automotive manufacturing industry, the capital and resource investment required for the trial production of new models is increasing exponentially compared to normal production, with the contradictions being most acute in the production and painting stages of chassis components. Taking commercial vehicles as an example, chassis components not only cover hundreds of models and specifications, but also have significant differences in individual structural forms: from U-shaped brackets to irregularly shaped flanges, from hollow crossbeams to connectors with complex blind holes. If a custom painting fixture is customized for each part, it requires a lengthy process of 3D modeling, mold opening, and tooling debugging. The development cycle for a single tooling is long and the cost is high. For OEMs that often need to iterate on dozens of new models, this undoubtedly increases the production costs of the company.

[0003] Currently, if we abandon specialized tooling and adopt manual spraying, we will face the following problems: First, the diversity of the physical form of parts makes it difficult to standardize the spraying trajectory. For example, shaft parts with a diameter of 50mm and plate parts with a surface area of ​​0.5㎡ require completely different gun-holding angles and moving speeds, making operation difficult and making it hard to ensure that the film thickness deviation of different batches of parts is controlled within ±5μm. Second, the traditional manual support method mainly relies on the operator holding the gun or using temporary supports for fixation. Taking the spraying of a certain type of longitudinal beam as an example, it is necessary to repeatedly adjust the workpiece tilt angle 5-8 times to cover the entire surface. The single spraying time is long and labor-intensive. Third, non-standardized operation will lead to significant product quality dispersion. The appearance qualification rate of manually sprayed parts is low, and the coating thickness is uneven, which seriously affects the brand image when new cars are exhibited.

[0004] Furthermore, existing manual spraying operations generally use hook-type or C-type clamps to fix the workpiece. Taking 3-bar air pressure spraying as an example, the workpiece suspended by the hook will experience periodic shaking with an amplitude of about 0.5-1cm due to the backflow of airflow, resulting in orange peel or sagging defects in the coating and high surface roughness of the workpiece. A more prominent problem is that for differential housings with concave cavity structures, the hook needs to be fixed to the top flange of the workpiece, resulting in the nozzle's reach angle to the bottom deep cavity being less than 30°, which is lower than the coating thickness standard for that area. For brake shoes with through holes of Φ10mm or less, when the hook passes through the through hole, it will create a blind spot with a diameter of about 15mm, requiring the operator to perform secondary spraying, resulting in additional working time. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of existing automotive parts painting technologies, such as the high cost of dedicated painting fixtures and the difficulty of manual painting operations, resulting in low painting effects, and to provide a painting fixture for automotive parts.

[0006] This utility model is achieved through the following technical solution: a spraying fixture for automotive parts, including a base, a gantry bracket on the upper part of the base, a fixture bracket inside the gantry bracket, and multiple long rods and adjusting rods for mounting workpieces inside the fixture bracket; the adjusting rods include multiple arc-shaped plates, which are arranged circumferentially and can be combined to form a tubular structure; multiple T-shaped connecting posts are provided on the inner side of the arc-shaped plates, and the multiple arc-shaped plates are connected to each other by T-shaped connecting posts and elastic straps, so that the tubular structure can form a structure that expands outward or contracts inward; sub-threaded portions are provided on the inner sides of both ends of the arc-shaped plates, and the sub-threaded portions at corresponding ends of the multiple arc-shaped plates can be combined to form a tapered screw hole; tapered studs are screwed to both ends of the tubular structure through the tapered screw hole, and the tubular structure can be expanded outward or contracted inward by rotating the tapered studs.

[0007] This fixture achieves automatic transfer of workpieces after spraying through the integrated design of the connecting plate and the skid, improving production efficiency; the adjusting rod can be adapted to workpiece through holes with different inner diameters from 16mm to 26mm through the linkage adjustment of the tapered stud and the elastic pull belt, avoiding the need to customize special fixtures for each part, reducing trial production costs and shortening the cycle; multiple long rods arranged in parallel can carry multiple workpieces at the same time, improving spraying efficiency.

[0008] A further improvement of this utility model is that the tooling bracket is provided with multiple connecting groove groups corresponding to the number of long rods and adjusting long rods. Each connecting groove group includes two connecting grooves, which are symmetrically arranged on the two side crossbeams of the tooling bracket. The two ends of the long rod or adjusting long rod are respectively disposed inside the two connecting grooves in the corresponding connecting groove group, so that the long rod and adjusting long rod can be detachably connected to the tooling bracket.

[0009] The aforementioned detachable connecting groove design allows for flexible replacement of the long rod according to the through hole size of the workpiece. The tooling structure can be quickly adjusted without tools, adapting to the spraying needs of various parts and reducing tooling change time. The symmetrically arranged grooves ensure that the long rod remains horizontal after installation, avoiding uneven spraying caused by tilting.

[0010] A further improvement of this utility model is that baffles are provided at both ends of the long rod, and the baffles are located on the outside of the tooling bracket.

[0011] This fixture enhances the stability of the long rod installation through the baffle structure, preventing the workpiece from shaking due to the long rod loosening, thereby ensuring the continuity of the spraying trajectory and improving the uniformity of the coating; for example, when spraying with 3-5 bar air pressure, the baffle design can better control the amplitude of workpiece shaking and reduce the amount of shaking.

[0012] A further improvement of this utility model is that multiple reinforcing blocks are provided on the inner side of the arc-shaped plate, and the T-shaped connecting columns are arranged in groups of two, with the two T-shaped connecting columns in a group respectively located at both ends of the reinforcing block.

[0013] This fixture, through the design of the reinforcing block, can prevent the arc plate from undergoing plastic deformation during diameter adjustment, thus extending the service life of the adjusting rod. The combination of the T-shaped connecting column and the elastic pull belt ensures that the arc plate moves synchronously, avoiding the skewing of the tube structure due to uneven force, thereby ensuring a tight fit between the adjusting rod and the workpiece through hole.

[0014] A further improvement of this utility model is that the cross-section of the reinforcing block is fan-shaped, and the arc-shaped side of the reinforcing block is connected to the inner side of the arc-shaped plate.

[0015] This fixture maximizes the bending strength of the curved plate through the design of the fan-shaped reinforcing blocks. For example, when subjected to an adjustable torque of 20 N·m, the reinforcing blocks enhance the strength of the curved plate. At the same time, the evenly distributed reinforcing blocks ensure that the tube structure maintains a circular cross-section under different diameters, ensuring coaxiality with the workpiece through hole and avoiding eccentric obstruction during spraying.

[0016] A further improvement of this utility model is that the plurality of reinforcing blocks are arranged symmetrically at equal intervals.

[0017] A further improvement of this utility model is that a hexagonal knob is provided at the end of the conical stud away from the tube structure.

[0018] This tooling uses a knob design to allow for quick, manual or tool-based adjustment instead of traditional screwdriver adjustment, reducing the time for adjusting the diameter of the long rod from minutes to seconds and significantly improving tooling preparation efficiency. The hexagonal structure prevents slippage during adjustment and ensures consistent tightening torque for the conical studs, such as a stable tightening torque of 8 N·m, guaranteeing stability after pipe diameter adjustment.

[0019] A further improvement of this utility model is that T-shaped connecting posts are provided on the outer sides of the two knobs and on the outer sides of both ends of the tube structure, and the knobs and the corresponding ends of the tube structure are connected by T-shaped connecting posts and elastic straps.

[0020] This fixture uses an elastic pull strap to prevent the tapered stud from rotating due to vibration during spraying, ensuring that the diameter of the adjusting rod remains stable. For example, during a 30-minute continuous spraying operation, this structure can reduce the loosening angle of the tapered stud, effectively preventing workpiece shaking or obstruction caused by changes in the tube diameter, and significantly reducing coating thickness deviation.

[0021] A further improvement of this utility model is that connecting plates are respectively provided at the four corners of the lower part of the base.

[0022] A further improvement of this utility model is that the multiple long rods and the adjusting long rods are arranged in parallel at equal intervals.

[0023] As can be seen from the above technical solutions, the beneficial effects of this utility model are:

[0024] 1. This tooling significantly improves versatility and reduces prototyping costs through its adjustable long rod structure. The adjustable long rod is composed of multiple arc-shaped plates combined with elastic straps and tapered studs. By rotating the tapered studs, the diameter of the tube structure can be flexibly adjusted between 16mm and 26mm to accommodate workpiece through holes of different inner diameters. This avoids customizing dedicated tooling for each part, shortens the development cycle of a single tooling model, and reduces costs. At the same time, multiple long rods arranged in parallel can simultaneously carry multiple workpieces, increasing the workpiece carrying capacity.

[0025] 2. The integrated design of this tooling with the production line significantly improves production efficiency. The connecting plates at the four corners of the base can be connected to the skid bolts to realize the automatic transfer of the workpiece to the next station after spraying, reducing the time spent on manual transfer; the connecting slots of the tooling bracket support the quick disassembly and replacement of long rods, shortening the replacement time and adapting to the mixed production needs of multiple types of parts; the knob-type adjustment structure can reduce the diameter adjustment time and significantly improve the tooling preparation efficiency.

[0026] 3. This fixture ensures consistent coating quality through multiple stabilizing structures. The baffles at both ends of the long rod, in conjunction with the connecting groove assembly, better control the workpiece's sway and reduce vibration; the combination of the fan-shaped reinforcing block and the elastic pull strap effectively reduces the expansion error of the arc plate, ensuring a tight fit between the tube and the through hole and eliminating blind spots; the elastic pull strap's anti-loosening design reduces the loosening angle of the tapered stud during spraying, ensuring coating thickness deviation and improving the appearance qualification rate. Attached Figure Description

[0027] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a structural schematic diagram of a specific embodiment of the present utility model.

[0029] Figure 2 yes Figure 1 A magnified view of part A in the middle.

[0030] Figure 3 yes Figure 1 A magnified view of part B in the middle.

[0031] Figure 4 yes Figure 1 A magnified view of part C in the middle.

[0032] Figure 5 This is a schematic diagram of the structure of the long rod in a specific embodiment of this utility model.

[0033] Figure 6 This is a schematic diagram of the structure of the adjusting rod in a specific embodiment of this utility model.

[0034] Figure 7 This is an exploded view of the adjusting rod in a specific embodiment of this utility model.

[0035] Figure 8 This is a schematic diagram of the structure of the arc-shaped plate according to a specific embodiment of the present invention.

[0036] Figure 9 yes Figure 8 A magnified view of part D in the middle.

[0037] Figure 10 yes Figure 8 A magnified view of part E in the middle.

[0038] Figure 11 This is a schematic diagram of the structure of the tapered stud in a specific embodiment of the present invention.

[0039] In the diagram: 1. Base; 2. Gantry bracket; 3. Tooling bracket; 301. Connecting groove; 4. Long rod; 401. Baffle; 5. Adjusting long rod; 501. Arc plate; 502. Tube structure; 503. Sub-threaded part; 504. Tapered screw hole; 6. Tapered stud; 601. Knob; 7. T-shaped connecting post; 8. Elastic pull strip; 9. Reinforcing block; 10. Connecting plate; 11. Workpiece. Detailed Implementation

[0040] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0041] Now refer to Figures 1-11The following is a description of a specific embodiment: The present invention provides a painting fixture for automotive parts, comprising a base 1, a gantry bracket 2 on the upper part of the base 1, and connecting plates 10 at the four corners of the lower part of the base 1, which allow the base 1 to be mounted on a production line skid. A fixture bracket 3 is provided inside the gantry bracket 2, and multiple long rods 4 and adjusting rods 5 for mounting workpieces 11 are provided inside the fixture bracket 3, with the long rods 4 and adjusting rods 5 arranged parallel and at equal intervals. Each adjusting rod 5 includes multiple arc-shaped plates 501 arranged circumferentially and capable of forming a tubular structure 502. Multiple T-shaped connecting posts 7 are provided on the inner side of 01. Multiple arc-shaped plates 501 are connected to each other through T-shaped connecting posts 7 and elastic straps 8, so that the tube structure 502 can form a structure that expands outward or contracts inward. Sub-threaded portions 503 are provided on the inner sides of both ends of the arc-shaped plates 501. The sub-threaded portions 503 at corresponding ends of multiple arc-shaped plates 501 can be combined to form a tapered screw hole 504. Tapered studs 6 are screwed to both ends of the tube structure 502 through the tapered screw hole 504. By rotating the tapered studs 6, the tube structure 502 can expand outward or contract inward, so that the diameter of the adjusting rod 5 can adapt to workpiece through holes with different inner diameters on the workpiece.

[0042] The base 1 is connected to the production line skid bolts via connecting plates 10 at the four corners, allowing the tooling to be automatically transferred with the skid. The gantry bracket 2 supports the tooling bracket 3, and the parallel long rods 4 and adjusting long rods 5 inside are used to pass through the workpiece 11. Multiple arc-shaped plates 501 of the adjusting long rod 5 are connected by T-shaped connecting columns 7 and elastic straps 8 to form a deformable tube structure 502. The sub-threaded parts 503 at both ends are combined to form a tapered screw hole 504. When the tapered stud 6 is rotated, the tapered surface of the tapered stud pushes the arc-shaped plates to expand outward or contract inward, thereby changing the diameter of the tube.

[0043] This fixture achieves automatic transfer of the workpiece 11 after spraying through the integrated design of the connecting plate 10 and the skid, improving production efficiency; the adjusting rod 5 can be adapted to workpiece through holes with different inner diameters from 16mm to 26mm through the linkage adjustment of the tapered stud 6 and the elastic pull belt 8, avoiding the need to customize special fixtures for each part, reducing trial production costs and shortening the cycle; multiple long rods arranged in parallel can carry multiple workpieces 11 at the same time, improving spraying efficiency.

[0044] Specifically, refer to Figure 2 and Figure 3The tooling bracket 3 is provided with multiple connecting groove groups corresponding to the number of long rods 4 and adjusting long rods 5. Each connecting groove group includes two connecting grooves 301, which are symmetrically arranged on the two side crossbeams of the tooling bracket 3. The two ends of the long rods 4 or adjusting long rods 5 are respectively disposed inside the two connecting grooves 301 in the corresponding connecting groove group, so that the long rods 4 and adjusting long rods 5 can be detachably connected to the tooling bracket 3.

[0045] The connecting grooves 301 on both sides of the crossbeam of the tooling bracket 3 are symmetrically arranged. The two ends of the long rod 4 or the adjusting long rod 5 are embedded in the corresponding grooves, and the detachable connection is achieved by using the limiting effect of the grooves. When it is necessary to replace the long rod with one of different diameters, simply pull the old rod out of the groove and insert the new rod.

[0046] The aforementioned detachable connecting groove design allows for flexible replacement of the long rod according to the through hole size of the workpiece. The tooling structure can be quickly adjusted without tools, adapting to the spraying needs of various parts and reducing tooling change time. The symmetrically arranged grooves ensure that the long rod remains horizontal after installation, avoiding uneven spraying caused by tilting.

[0047] In one embodiment, reference Figure 5 The long rod 4 is provided with baffles 401 at both ends. The baffles 401 are detachably connected to the long rod 4 by studs or threaded sleeves, and the baffles 401 are located on the outside of the tooling bracket 3.

[0048] The baffles 401 at both ends of the long rod 4 abut against the outside of the tooling bracket 3. When the workpiece is placed on the long rod 4, the baffles restrict the axial movement of the long rod 4 to prevent it from falling out of the connecting groove. During the spraying process, the baffles 401 also block the displacement of the workpiece caused by the airflow impact to keep the workpiece stable.

[0049] This fixture enhances the stability of the long rod 4 installation through the baffle 401 structure, preventing the workpiece from shaking due to the loosening of the long rod 4, thereby ensuring the continuity of the spraying trajectory and improving the uniformity of the coating; for example, when spraying at 3-5 bar air pressure, the design of the baffle 401 can better control the shaking amplitude of the workpiece 11 and reduce the amount of shaking.

[0050] In one embodiment, reference Figure 7 , Figure 8 and Figure 10 The inner side of the arc plate 501 is provided with a plurality of equally spaced and symmetrically arranged reinforcing blocks 9. The T-shaped connecting columns 7 are arranged in groups of two, and the two T-shaped connecting columns 7 in a group are respectively arranged at both ends of the reinforcing block 9.

[0051] The reinforcing block 9 on the inner side of the arc plate 501 is fan-shaped, and its arc side fits into the arc plate to enhance the structural strength of the arc plate; each group of two T-shaped connecting columns 7 are fixed at both ends of the reinforcing block and connected to adjacent arc plates by elastic straps 8, so that the tube structure 502 can expand or contract evenly when the conical stud 6 is adjusted.

[0052] The design of the reinforcing block 9 prevents the arc plate 501 from undergoing plastic deformation during diameter adjustment, thus extending the service life of the adjusting rod 5. The combination of the T-shaped connecting column 7 and the elastic pull belt 8 ensures that the arc plate 501 moves synchronously, avoiding the skewing of the tube structure 502 due to uneven force, thereby ensuring a tight fit between the adjusting rod 5 and the workpiece through hole.

[0053] In one embodiment, reference Figure 10 The cross-section of the reinforcing block 9 is fan-shaped, and the arc-shaped side of the reinforcing block 9 is connected to the inner side of the arc-shaped plate 501.

[0054] The cross-section of the reinforcing block 9 is fan-shaped, and its curvature is consistent with the inner side of the arc plate 501. It is fixed to the arc plate 501 by welding or bolts to form a support structure that is evenly distributed along the circumference of the tube. When the conical stud 6 pushes the arc plate to expand, the fan-shaped reinforcing block can evenly distribute the stress and prevent the arc plate 501 from cracking locally.

[0055] This fixture maximizes the bending strength of the arc plate 501 through the design of the fan-shaped reinforcing blocks. For example, when subjected to an adjustment torque of 20 N·m, the reinforcing blocks 9 enhance the strength of the arc plate 501. At the same time, the evenly distributed reinforcing blocks 9 ensure that the tube structure 502 maintains a circular cross-section under different diameters, ensuring coaxiality with the workpiece through hole and avoiding eccentric obstruction during spraying.

[0056] In one embodiment, reference Figure 6 and Figure 11 The tapered stud 6 is provided with a hexagonal knob 601 at the end away from the tube structure 502.

[0057] A hexagonal knob 601 is provided at the end of the tapered stud 6 away from the tube structure 502. The operator can rotate the knob by wrench or by hand to drive the tapered stud to move axially within the tapered screw hole 504. The hexagonal cross section of the knob provides sufficient friction to facilitate precise control of the rotation angle.

[0058] This tooling uses a knob design to allow for quick, manual or tool-based adjustment instead of traditional screwdriver adjustment, reducing the diameter adjustment time of the long rod from 5 minutes to 30 seconds, significantly improving tooling preparation efficiency. The hexagonal structure prevents slippage during adjustment and ensures consistent tightening torque for the conical studs, such as a stable tightening torque of 8 N·m, guaranteeing stability after pipe diameter adjustment.

[0059] In one embodiment, T-shaped connecting posts 7 are provided on the outer sides of the two knobs 601 and the outer sides of both ends of the tube structure 502, and the knobs 601 and the corresponding ends of the tube structure 502 are connected by the T-shaped connecting posts 7 and the elastic pull straps 8.

[0060] The outer side of the knob 601 is connected to both ends of the tube structure 502 via a T-shaped connecting post 7 and an elastic pull band 8. When the tapered stud 6 is tightened, the elastic pull band exerts an inward pulling force on the knob, which counteracts the vibration impact of the airflow on the tapered stud during the spraying process and prevents the knob from loosening.

[0061] This fixture prevents the tapered stud 6 from rotating due to vibration during the spraying process through the anti-loosening structure of the elastic strap, ensuring that the diameter of the adjusting rod 5 remains stable. For example, during a continuous 30-minute spraying operation, this structure can reduce the loosening angle of the tapered stud 6, effectively preventing workpiece shaking or obstruction caused by changes in the tube diameter, and significantly reducing coating thickness deviation.

[0062] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A spraying fixture for automotive parts, comprising a base (1), characterized in that, A gantry bracket (2) is provided on the upper part of the base (1). A tooling bracket (3) is provided inside the gantry bracket (2). Multiple long rods (4) for installing workpieces (11) and adjusting long rods (5) are provided inside the tooling bracket (3). The adjusting long rods (5) include multiple arc plates (501). The multiple arc plates (501) are arranged circumferentially and can be combined into a tube structure (502). Multiple T-shaped connecting columns (7) are provided on the inner side of the arc plates (501). The multiple arc plates (501) are connected by T-shaped connecting columns (7). The tube structure (502) is connected to the elastic band (8) so that the tube structure (502) can form a structure that expands outward or contracts inward; the inner sides of both ends of the arc plate (501) are respectively provided with sub-threaded parts (503), and the sub-threaded parts (503) of the corresponding ends of multiple arc plates (501) can be combined into a conical screw hole (504); the two ends of the tube structure (502) are respectively screwed with conical studs (6) through the conical screw holes (504), and by rotating the conical studs (6), the tube structure (502) can expand outward or contract inward.

2. The painting fixture for automotive parts according to claim 1, characterized in that, The tooling bracket (3) is provided with multiple connecting groove groups corresponding to the number of long rods (4) and adjusting long rods (5). Each connecting groove group includes two connecting grooves (301), which are symmetrically arranged on the two side beams of the tooling bracket (3). The two ends of the long rod (4) or adjusting long rod (5) are respectively set inside the two connecting grooves (301) in the corresponding connecting groove group, so that the long rod (4) and adjusting long rod (5) can be detachably connected to the tooling bracket (3).

3. The painting fixture for automotive parts according to claim 1, characterized in that, The long rod (4) is provided with baffles (401) at both ends, and the baffles (401) are located on the outside of the tooling bracket (3).

4. The painting fixture for automotive parts according to claim 1, characterized in that, The inner side of the arc plate (501) is provided with a plurality of reinforcing blocks (9), and the T-shaped connecting columns (7) are arranged in groups of two, and the two T-shaped connecting columns (7) in a group are respectively arranged at both ends of the reinforcing block (9).

5. A painting fixture for automotive parts according to claim 4, characterized in that, The cross-section of the reinforcing block (9) is fan-shaped, and the arc-shaped side of the reinforcing block (9) is connected to the inner side of the arc plate (501).

6. The painting fixture for automotive parts according to claim 4, characterized in that, Multiple reinforcing blocks (9) are arranged symmetrically at equal intervals.

7. A painting fixture for automotive parts according to claim 1, characterized in that, The tapered stud (6) has a hexagonal knob (601) at the end away from the tube structure (502).

8. A painting fixture for automotive parts according to claim 7, characterized in that, T-shaped connecting posts (7) are provided on the outer sides of the two knobs (601) and the outer sides of both ends of the tube structure (502). The knobs (601) and the corresponding ends of the tube structure (502) are connected by the T-shaped connecting posts (7) and the elastic pull strip (8).

9. A painting fixture for automotive parts according to claim 1, characterized in that, Connecting plates (10) are provided at the four corners of the lower part of the base (1).

10. A painting fixture for automotive parts according to claim 1, characterized in that, The multiple long rods (4) and the adjusting long rods (5) are arranged in parallel at equal intervals.

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