Paint spraying tool for automobile door panel decorating part

Abstract

The invention discloses an automobile door panel decorating part paint spraying tool, and relates to the field of automobile decorating part machining, the automobile door panel decorating part paint spraying tool comprises a bottom support, a top support and a paint spraying structure, the top support is installed on the bottom support, and the paint spraying structure is arranged on a power structure; the paint spraying structure comprises a base plate and a stand column, guide rails are symmetrically arranged on the base plate, and a tool plate is arranged on the guide rails; the top of the tool disc is connected with a threaded column. The power structure comprises a motor and a rotating shaft, the bottom of the rotating shaft is connected to a first flange, and the lower end of the first flange is connected with a guide disc; according to the tool disc, the horizontal angle of the tool disc can be continuously changed through rotation of the threaded column, the tool disc can be conveniently matched with special-shaped faces of different ornaments, the special-shaped faces can be evenly sprayed, and the tool disc can meet different ornament products of more models.

Description

Technical Field

[0001] This invention relates to the field of automotive trim processing, specifically to a painting fixture for automotive door panel trim parts. Background Technology

[0002] In recent years, the design of automotive door panel trim has become more complex, with multi-angle curved surfaces, sloping surfaces, and irregular structures, such as curved surfaces with different R values ​​and inclined transition surfaces of 15° to 45°. This has become the mainstream solution for improving the aesthetics of the interior.

[0003] However, such non-planar structures pose a severe challenge to the painting process: traditional tooling, due to its fixed angle limitation or single reference surface design, is difficult to adapt to surfaces with multiple curvatures, resulting in poor paint uniformity. Even with the use of nozzles with different angles, it is difficult to take into account all irregular surfaces in the case of more diversified designs.

[0004] If tooling is configured separately for different angles, changeover is time-consuming and inventory costs are high; although general-purpose tooling attempts to balance adaptability through adjustable grippers, due to the thin-walled and easily deformable nature of the trim parts, "over-constraint" or "under-constraint" problems often occur, affecting the accuracy of the paint layer.

[0005] Manually adjusting the clamping angle relies on experience, which can easily lead to paint thickness deviations and fail to meet the appearance consistency requirements of high-end vehicle models. Existing solutions, due to their high specialization and low flexibility, are no longer suitable for the efficient and high-quality demands of modern painting. There is an urgent need to develop new tooling technologies that are compatible with multiple angles, require less rework, and offer high stability. Summary of the Invention

[0006] The purpose of this invention is to provide a painting fixture for automotive door panel trim parts to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a painting fixture for automotive door panel trim, comprising a bottom bracket, a top bracket, and a painting structure, wherein the top bracket is mounted on the bottom bracket, and the painting structure is mounted on a power structure;

[0008] The painting structure includes a chassis and a column, with the column fixedly installed at the center of the chassis.

[0009] The chassis is provided with symmetrically arranged guide rails, and tooling trays are provided on the guide rails;

[0010] The top of the tooling tray is connected to a threaded post;

[0011] The bottom of the threaded column is snapped into the column;

[0012] The power structure includes a motor and a rotating shaft. The motor is used to drive the rotating shaft to rotate, and the rotating shaft is used to drive the chassis to rotate.

[0013] A shield is provided above the chassis. The shield is fixedly connected to the bottom of the top bracket by a fixing rod and covers the tooling tray.

[0014] Preferably, the bottom support includes a foot and a platform, with the platform fixedly mounted on the foot.

[0015] Preferably, the top support includes a vertical plate and a horizontal plate, the vertical plates being symmetrically arranged and fixedly connected to both sides of the tabletop at the bottom.

[0016] Preferably, the chassis has baffles at its edges.

[0017] Preferably, the upper end of the column is provided with an inner groove, and the bottom of the threaded column is provided with a boss, which is rotatably connected in the inner groove;

[0018] The bottom of the threaded column is vertically limited by the cooperation between the boss and the inner groove;

[0019] The bottom of the column is mounted on the chassis via flange two.

[0020] Preferably, the bottom of the tooling tray is provided with a guide groove that mates with the guide rail, and the tooling tray is provided with an installation groove;

[0021] The bottom surface of the mounting groove is provided with a magnetic suction surface, which can fix the magnetic column by magnetic attraction.

[0022] Preferably, the tooling tray is provided with a rotating rod at the top, and the tooling tray is hinged to the side of the fixed block through the rotating rod;

[0023] The fixing block is threaded onto the column.

[0024] Preferably, the top of the threaded column is mounted on a top bracket via a flange.

[0025] Preferably, the upper end of the motor is mounted below the shock-absorbing plate via flange four, and the shock-absorbing plate is fixedly mounted below the table surface;

[0026] The rotating shaft is connected to the output shaft of the motor;

[0027] The top of the rotating shaft is connected to the chassis, the bottom of the rotating shaft is connected to flange one, and a guide plate is connected to the lower end of flange one.

[0028] The bottom of the guide plate is provided with a guide boss, which is slidably connected in the groove on the groove plate, and the groove plate is fixedly installed on the bottom bracket.

[0029] Preferably, the shield has a notch that allows any tooling tray to remain unobstructed.

[0030] Compared with existing technologies, the game effects of this invention are:

[0031] The rotating design of the tooling tray in this invention, combined with the constraint of the guide boss and the grooved tray, ensures that the paint film thickness deviation is within the required range, thus meeting the high appearance requirements of automotive door panel decorative parts.

[0032] The magnetic column design of this invention provides rapid adsorption, which improves efficiency compared to traditional bolt-fastening or pneumatic clamping, making it suitable for mass production.

[0033] The tooling disc of this invention can continuously change its horizontal angle by rotating the threaded column, which is convenient for matching different decorative parts with irregular surfaces, so that these irregular surfaces can be uniformly sprayed, and can meet the needs of more models of different decorative parts products.

[0034] The magnetic surface of this invention, in conjunction with the magnetic post, can fix the ornament at its outer contour for a period of time, preventing the clamping in the prior art from obscuring the surface of the ornament. It does not require additional clamps and will not obscure the sprayed surface. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the structure of the present invention;

[0036] Figure 2 This is a top view of the present invention;

[0037] Figure 3 for Figure 2 Schematic diagram of the cross section at point AA;

[0038] Figure 4 This is a schematic diagram of the spray painting structure;

[0039] Figure 5 This is a schematic diagram of the power structure.

[0040] In the diagram: 1 - Bottom support;

[0041] 2-Top bracket;

[0042] 3-Painted structure;

[0043] 31-Chassis;

[0044] 311-Baffle;

[0045] 32-Column;

[0046] 321-Flange II;

[0047] 33-Guide rail;

[0048] 34-Tooling tray;

[0049] 341-Guide groove;

[0050] 342 - Mounting slot;

[0051] 343 - Magnetic column;

[0052] 35-Threaded Post;

[0053] 351-Flange Three;

[0054] 36 - Rotating rod;

[0055] 37-Fixed block;

[0056] 4-Power structure;

[0057] 41-Motor;

[0058] 411-Flange Four;

[0059] 42-Shaft;

[0060] 43-Flange 1;

[0061] 44-Guide plate;

[0062] 45 - Damping plate;

[0063] 46-Groove disc;

[0064] 5-Shielding cover;

[0065] 51-Fixed rod. Detailed Implementation

[0066] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0067] Please see Figures 1 to 5 The present invention provides a technical solution: a painting fixture for automotive door panel trim, comprising a bottom bracket 1, a top bracket 2 and a painting structure 3, wherein the top bracket 2 is mounted on the bottom bracket 1 and the painting structure 3 is mounted on a power structure 4.

[0068] The painting structure 3 includes a chassis 31 and a column 32, with the column 32 fixedly installed at the center of the chassis 31;

[0069] The chassis 31 is provided with symmetrically arranged guide rails 33, and the guide rails 33 are provided with tooling trays 34;

[0070] The top of the tooling tray 34 is connected to a threaded post 35;

[0071] The bottom of the threaded post 35 is engaged inside the post 32;

[0072] The power structure 4 includes a motor 41 and a rotating shaft 42. The motor 41 is fixedly mounted on the bottom bracket 1, and the rotating shaft 42 is connected to the output shaft of the motor 41.

[0073] The top of the rotating shaft 42 is connected to the chassis 31, the bottom of the rotating shaft 42 is connected to the flange 43, and the lower end of the flange 43 is connected to the guide plate 44.

[0074] The bottom of the guide plate 44 is provided with a guide boss, which is slidably connected in the groove on the groove plate 46. The groove plate 46 is fixedly installed on the bottom bracket 1.

[0075] A shield 5 is provided above the chassis 31. The shield 5 is fixedly connected to the bottom of the top support 2 by a fixing rod 51 and covers the tooling tray 34.

[0076] In this embodiment, the bottom support 1 includes a foot and a platform, with the platform fixedly installed on the foot.

[0077] The feet provide overall support and distribute the weight of the device; the platform serves as the mounting reference surface for the power structure 4 and the painting structure 3, ensuring the positional accuracy of each component.

[0078] In this embodiment, the top support 2 includes a vertical plate and a horizontal plate, the vertical plates are symmetrically arranged and their bottoms are fixedly connected to both sides of the table surface.

[0079] In this embodiment, the edge of the chassis 31 is provided with a baffle 311.

[0080] The chassis 31 serves as the basic support platform for the painting structure 3, and the baffle 311 is used to prevent the flow of paint liquid.

[0081] In this embodiment, the upper end of the column 32 is provided with an inner groove, and the bottom of the threaded column 35 is provided with a boss, which is rotatably connected in the inner groove.

[0082] The bottom of the threaded column 35 is limited in the vertical direction by the cooperation of the boss and the inner groove.

[0083] The bottom of the column 32 is mounted on the chassis 31 via flange 2 321;

[0084] The column 32 engages with the boss of the threaded column 35 through its inner groove, which restricts the vertical displacement of the tooling plate 34 and prevents the threaded column 35 from moving up and down when rotating.

[0085] In this embodiment, the bottom of the tooling tray 34 is provided with a guide groove 341 that mates with the guide rail 33, and the tooling tray 34 is provided with an installation groove 342.

[0086] The guide groove 341 cooperates with the guide rail 33 to ensure that the tooling plate 34 moves linearly along the radial direction of the chassis 31, so that the movement of the tooling plate 34 can be limited.

[0087] The bottom surface of the mounting groove 342 is provided with a magnetic suction surface, which can fix the magnetic suction post 343 by magnetic attraction;

[0088] The bottom surface of the mounting slot 342 is provided with a magnetic surface for adsorbing the magnetic column 343. The magnetic surface is made of neodymium iron boron. The magnetic column 343 is adsorbed by magnetic force. By setting multiple magnetic columns 342 on the outer contour edge of the ornament, the ornament can be quickly fixed, avoiding the time-consuming bolt tightening of traditional clamps and the problem of obstructing the spraying surface.

[0089] In this embodiment, a rotating rod 36 is provided on the top of the tooling tray 34, and the tooling tray 34 is hinged to the side of the fixing block 37 through the rotating rod 36;

[0090] By rotating the threaded column 35, the fixed block 37 can move up and down under the rotation of the threaded column 35, thereby driving the top of the tooling plate 34 to move up and down, so as to change the horizontal tilt angle of the tooling plate 34. The angle change range is between 20° and 65°, which can meet the tilt angle of most decorative parts' curved or inclined surfaces.

[0091] The fixing block 37 is threaded onto the column 32.

[0092] In this embodiment, the top of the threaded post 35 is mounted on the top bracket 2 via a flange 351. A groove or a through hole is machined into the top of the threaded post 35 to facilitate rotation of the threaded post 35.

[0093] In this embodiment, the upper end of the motor 41 is mounted below the shock absorber 45 via flange 411, and the shock absorber 45 is fixedly mounted below the table surface.

[0094] The damping plate 45 absorbs the vibration of the motor 41 during operation, preventing uneven painting or displacement of decorative parts caused by vibration.

[0095] In this embodiment, the shield 5 is provided with a notch, which allows any tooling tray 34 to be unobstructed;

[0096] The shield 5 is a semi-circular steel plate, and the top is welded to the bottom of the horizontal plate of the top support 2 through the fixing rod 51. The distance between the edge of the shield opening and the top of the tooling plate 34 is 50mm. The shield body has a notch with an arc length of 1 / 4 of the circumference.

[0097] Primarily used to protect against paint splatter from affecting the decorative parts on adjacent tooling trays 34, the notch design allows only the decorative parts at the notch to be exposed when the tooling trays 34 rotate.

[0098] Working principle: First, the operator places the automotive trim parts to be painted into the mounting slot 342 of the tooling tray 34, and the magnetic surface attracts the magnetic column 343 to fix the trim strip.

[0099] Then, by rotating the threaded column 35, the angle of the rotary table 34 is adjusted so that the irregular surface of the decorative part to be processed can achieve the best spraying effect when combined with the external spraying nozzle.

[0100] Start motor 41, and the rotating shaft 42 drives the chassis 31 and tooling plate 34 to rotate slowly to check the rotation stability;

[0101] Adjust the position of the external spray nozzle, align it with the trim strip in the center of tooling tray 34, and spray paint evenly;

[0102] The tooling tray 34 rotates continuously under the drive of the motor 41 to ensure uniform circumferential painting of the trim strip;

[0103] During rotation, the guide boss and the grooved plate 46 cooperate to constrain the swing of the rotating shaft 42, and the damping plate 45 absorbs the vibration to avoid paint film dripping or orange peel defects.

[0104] After the painting is completed, motor 41 stops and tooling tray 34 remains stationary; masking cover 5 remains closed to prevent paint from dripping.

[0105] Manually remove the magnetic column 343 and take out the trim strip; clean the residual paint on the surface of the tooling tray 34 to prepare for the next operation.

[0106] Based on the above, the rotating design of the tooling tray of the present invention, combined with the constraint of the guide boss and the grooved tray, ensures that the paint film thickness deviation is within the required range, thus meeting the high appearance requirements of automotive door panel decorative parts.

[0107] The magnetic column design of this invention provides rapid adsorption, which improves efficiency compared to traditional bolt-fastening or pneumatic clamping, making it suitable for mass production.

[0108] The tooling disc of this invention can continuously change its horizontal angle by rotating the threaded column, which is convenient for matching different decorative parts with irregular surfaces, so that these irregular surfaces can be uniformly sprayed, and can meet the needs of more models of different decorative parts products.

[0109] The magnetic surface of this invention, in conjunction with the magnetic post, can fix the ornament at its outer contour for a period of time, preventing the clamping in the prior art from obscuring the surface of the ornament. It does not require additional clamps and will not obscure the sprayed surface.

[0110] As is known from common technical knowledge, this invention can be implemented through other embodiments that do not depart from its spirit or essential characteristics. Therefore, the disclosed embodiments described above are merely illustrative and not exhaustive. All modifications within the scope of this invention or its equivalents are included in this invention.

Claims

1. A painting fixture for automotive door panel trim parts, characterized in that: It includes a bottom bracket (1), a top bracket (2) and a painting structure (3), wherein the top bracket (2) is mounted on the bottom bracket (1) and the painting structure (3) is mounted on the power structure (4); The painting structure (3) includes a chassis (31) and a column (32), the column (32) being fixedly installed at the center of the chassis (31); The chassis (31) is provided with symmetrically arranged guide rails (33), and the guide rails (33) are provided with tooling trays (34); The tooling tray (34) is connected to a threaded post (35) at its top; The bottom of the threaded column (35) is engaged inside the column (32); The power structure (4) includes a motor (41) and a rotating shaft (42). The motor (41) is used to drive the rotating shaft (42) to rotate, and the rotating shaft (42) is used to drive the chassis (31) to rotate. A shield (5) is provided above the chassis (31). The shield (5) is fixedly connected to the bottom of the top bracket (2) by a fixing rod (51) and covers the tooling tray (34).

2. The painting fixture for automotive door panel trim parts according to claim 1, characterized in that: The bottom support (1) includes a foot and a platform, with the platform fixedly installed on the foot.

3. The painting fixture for automotive door panel trim parts according to claim 2, characterized in that: The top support (2) includes a vertical plate and a horizontal plate, the vertical plates are symmetrically arranged and their bottoms are fixedly connected to both sides of the table.

4. The painting fixture for automotive door panel trim parts according to claim 1, characterized in that: The chassis (31) is provided with a baffle (311) at its edge.

5. The painting fixture for automotive door panel trim parts according to claim 1, characterized in that: The upper end of the column (32) is provided with an inner groove, and the bottom of the threaded column (35) is provided with a boss, which is rotatably connected in the inner groove; The bottom of the threaded column (35) is limited in the vertical direction by the cooperation of the boss and the inner groove; The bottom of the column (32) is mounted on the chassis (31) via flange two (321).

6. The painting fixture for automotive door panel trim parts according to claim 1, characterized in that: The bottom of the tooling tray (34) is provided with a guide groove (341) that cooperates with the guide rail (33), and the tooling tray (34) is provided with an installation groove (342); The bottom surface of the mounting groove (342) is provided with a magnetic suction surface, which can fix the magnetic column (343) by magnetic attraction.

7. The painting fixture for automotive door panel trim parts according to claim 1, characterized in that: The tooling tray (34) is provided with a rotating rod (36) at the top, and the tooling tray (34) is hinged to the side of the fixed block (37) through the rotating rod (36); The fixing block (37) is threaded onto the column (32).

8. The painting fixture for automotive door panel trim parts according to claim 1, characterized in that: The top of the threaded column (35) is mounted on the top bracket (2) via flange three (351).

9. The painting fixture for automotive door panel trim parts according to claim 2, characterized in that: The upper end of the motor (41) is mounted below the damping plate (45) via flange four (411), and the damping plate (45) is fixedly mounted below the table surface; The rotating shaft (42) is connected to the output shaft of the motor (41); The top of the rotating shaft (42) is connected to the chassis (31), the bottom of the rotating shaft (42) is connected to the flange (43), and the lower end of the flange (43) is connected to the guide plate (44). The bottom of the guide plate (44) is provided with a guide boss, which is slidably connected in the groove on the groove plate (46). The groove plate (46) is fixedly installed on the bottom bracket (1).

10. The painting fixture for automotive door panel trim parts according to claim 1, characterized in that: The shield (5) has a notch that allows any tooling tray (34) to remain unobstructed.

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