An adjustable support tool for painting

Abstract

The application discloses an adjustable spraying supporting tool, and relates to the technical field of spraying tools, which comprises a tool support, the surface of the tool support is provided with a supporting module, the supporting module comprises vertical steel needle parts for vertically limiting a product main body and inclined steel needle parts for supporting the product main body and increasing friction, the tool support is composed of horizontal supporting plates and inclined supporting plates, the vertical steel needle parts are installed on the horizontal supporting plates and are perpendicular to the horizontal supporting plates, and the inclined steel needle parts are installed on the inclined supporting plates and are perpendicular to the inclined supporting plates, the combined supporting structure of the vertical and inclined steel needles not only realizes stable positioning of the product, but also fully meets the processing requirements of full spraying, the vertical steel needle is adapted to the top edge profile of the product, can effectively limit the vertical movement of the product, the inclined steel needle is attached to the surface arc of the non-edge area of the product, and the small contact area design increases the friction resistance to avoid the product from sliding in the spraying airflow or vibration.

Description

Technical Field

[0001] This invention relates to the field of spraying fixture technology, specifically to an adjustable spraying support fixture. Background Technology

[0002] In the field of spray coating, the demand for full spray coating of specific product surfaces is becoming increasingly common. Such demands require the support fixture to stabilize the product while minimizing obstruction of the sprayed surface to ensure the integrity and uniformity of the coating. In powder coating, since the process relies on the conductive path between the workpiece and the support fixture to achieve the adsorption of charged powder, the support method, support stability, and conductivity of the support fixture are continuously maintained, becoming key factors affecting powder coating quality and production efficiency.

[0003] Currently, most spray painting support fixtures serve as core auxiliary equipment for product positioning. In existing technologies, the support structures of these fixtures are mainly divided into two categories: one type uses structures such as hooks and large contact area pads, which can ensure support stability, but the pads or hooks can easily obstruct the product's spraying surface, failing to meet the processing requirements of full spray painting; the other type uses ejector pins with small contact areas to adapt to the needs of full spray painting, in order to reduce spraying obstruction. However, these ejector pins are mostly fixed, non-adjustable, and non-replaceable integrated structures, making it difficult to simultaneously meet the multiple requirements of support stability, product compatibility, and conductivity maintenance, becoming a key bottleneck restricting the efficiency and quality of full spray painting operations in powder coating processes.

[0004] Existing spraying support fixtures still have the following significant drawbacks in practical applications: Insufficient functional adaptability: Most existing ejector pin support components are fixed installation structures, which cannot adjust the support position according to the support requirements of products of different sizes and contours. A single tooling can only be adapted to a few specifications of products, with poor versatility, making it difficult to meet diverse spraying processing needs.

[0005] The contradiction between stability and spray masking: If the existing support fixture adopts a support structure with a large contact area, it will easily mask the product spraying surface and make it impossible to achieve full spraying; if a pin structure with a small contact area is adopted, there is a lack of effective anti-slip design, and the product is prone to slippage under working conditions such as spraying airflow and transport vibration, making it difficult to balance the core requirements of "less masking" and "high stability".

[0006] Conductivity maintenance is cumbersome: In the powder coating process, the support components are in contact with insulating powder for a long time, which can easily form a powder accumulation layer on the surface, blocking the conductive path between the workpiece and the tooling. The existing irreplaceable support components require the entire tooling module to be disassembled and cleaned, which is a complicated operation process and seriously affects the production rhythm.

[0007] High long-term operating costs: When the existing fixed integrated support components fail to conduct electricity due to powder accumulation, the entire support assembly needs to be replaced. It is not possible to maintain or replace the support components separately, which not only increases the cost of tooling consumables, but also increases the complexity of equipment operation and maintenance.

[0008] Therefore, in view of this, the present invention proposes an adjustable spraying support fixture to make up for and improve the shortcomings of the prior art. Summary of the Invention

[0009] To address the aforementioned technical problems, this invention provides an adjustable spraying support fixture to solve the technical problems mentioned in the background section.

[0010] To achieve the above objectives, the technical solution adopted by the present invention is as follows: an adjustable spraying support fixture for placing the product body to be sprayed, so as to meet the full spraying processing requirements of the product body surface, including a fixture bracket, the surface of which is provided with a support module, the support module including a vertical steel needle for vertically limiting the product body, and an inclined steel needle for supporting the product body and increasing friction.

[0011] Furthermore, the tooling bracket is composed of a combination of a horizontal support plate and an inclined support plate. The vertical steel pin is installed on the horizontal support plate and is perpendicular to the horizontal support plate, while the inclined steel pin is installed on the inclined support plate and is perpendicular to the inclined support plate. The upper end of the tooling bracket is symmetrically and fixedly connected with tooling lifting lugs, which are used for the overall hoisting and transportation of the tooling bracket.

[0012] Furthermore, the vertical steel pins are distributed in majority on the horizontal support plate of the tooling bracket, and the inclined steel pins are distributed in majority on the inclined support plate of the tooling bracket. The spacing between different vertical steel pins and inclined steel pins is different to adapt to the support force requirements of different areas of the product body.

[0013] By adopting the above technical solution, the multi-point contact distributed support can reduce the risk of the product body slipping or shifting even if there is airflow or slight vibration during spraying. It can also distribute the weight of the product body to each steel needle contact point, avoid excessive local pressure, and prevent the product body from being crushed or dented during the spraying process.

[0014] Furthermore, the vertical steel needle adapts to the contour change position of the top edge of the main body of the product, and the inclined steel needle adapts to the surface curvature of the non-edge area of ​​the main body of the product.

[0015] By adopting the above technical solution, the angle of the tilted steel needle can be adapted to the curvature and tilt angle of the product body surface, making the steel needle fit the product better, and the obstruction area of ​​the tilted contact is smaller than that of the vertical contact.

[0016] Furthermore, locking bases are installed on the outer ends of both the vertical and inclined steel needles. A knob is installed inside the locking base. By tightening or loosening the knob, the installation position of the vertical and inclined steel needles can be adjusted and fixed. The vertical and inclined steel needles are movably connected to the tooling bracket through the locking base.

[0017] By adopting the above technical solution, both the vertical steel needle and the inclined steel needle are designed to be replaceable and position-adjustable, so as to solve the problem of the steel needle surface being contaminated with powder and affecting the conductivity during long-term powder spraying, thereby facilitating the regular cleaning and replacement of the steel needle.

[0018] Furthermore, the intersection of the locking base and the vertical steel needle is hollowed out, and a micro arc plate is installed on the outer wall of the end of the vertical steel needle. The micro arc plate is corrugated in shape, and both ends of the micro arc plate are fixedly connected to the locking base. The crest of the micro arc plate is in contact with the bottom of the vertical steel needle.

[0019] By adopting the above technical solution, the powder can easily adhere to the vertical steel needle after spraying. After the product body separates from the steel needle, the micro arc plate will gently push the vertical steel needle when it rebounds.

[0020] Furthermore, the micro arc plate is made of elastic metal. When the product body is placed on the tooling bracket, the micro arc plate is compressed by the pressure of the vertical steel needle. When the product body is removed, the micro arc plate rebounds and pushes the vertical steel needle to move slightly away from the locking base.

[0021] Furthermore, the intersection of the locking base and the inclined steel needle is hollowed out, and a helical spring is sleeved on the outer wall of the end of the inclined steel needle. The two ends of the helical spring are fixedly connected to the locking base and the inclined steel needle, respectively.

[0022] By adopting the above technical solution, the helical spring itself is a conductor, which not only serves as an elastic buffer to prevent the tilted steel needle from damaging the main body of the product, but also forms a dual conductive path of "steel needle + spring". Even if the surface of some tilted steel needles is covered with powder insulation, the contact between the helical spring and the locking base can still ensure that the main body of the product is grounded.

[0023] Furthermore, a first flexible tube and a second flexible tube are fixedly connected to the outer walls of the vertical steel needle and the inclined steel needle at their respective ends. A support ball is installed between the first flexible tube and the second flexible tube. A cylindrical shaft is fixedly connected to the outer wall of the support ball. The end of the cylindrical shaft away from the support ball is movably connected to the outer wall of the tooling bracket.

[0024] Furthermore, the center of the supporting sphere is located at the intersection of the extension lines of the vertical steel needle and the extension lines of the inclined steel needle. When the locking bases of the outer walls of the vertical and inclined steel needles are unlocked simultaneously, the adjustment actions of the vertical and inclined steel needles can be synchronized with the supporting sphere as the center.

[0025] Compared with the prior art, the beneficial effects of the present invention are: (1) In Example 1, the tooling uses a combination of vertical and inclined steel needles to support the product, which not only achieves stable positioning of the product, but also fully meets the processing requirements of full spraying. The vertical steel needles are adapted to the top edge contour of the product, which can effectively limit the vertical movement of the product. The inclined steel needles fit the surface curvature of the non-edge area of ​​the product. The small contact area design increases the frictional resistance to prevent the product from slipping in the spraying airflow or vibration, and does not block the surface of the product. At the same time, the spacing distribution of different steel needles can also adapt to the force requirements of different areas of the product, making the support more uniform and reasonable.

[0026] The adjustable structure of this tooling significantly improves its versatility and ease of operation. Using the knob on the locking base, the position of the vertical or tilted steel needles can be adjusted individually, adapting to the support needs of different product specifications without replacing the entire tooling set. This not only reduces the variety of tooling required but also lowers equipment investment costs. Furthermore, the adjusted locking design ensures the stability of the steel needle position during spraying, preventing support misalignment from affecting spraying quality. The steel needles are movably connected to the bracket via the locking base, allowing for easy disassembly, cleaning, or replacement. This effectively solves the problem of powder accumulation on the steel needles affecting conductivity after powder coating, ensuring the uniformity of the electrostatic powder coating. The tooling's lifting lugs facilitate overall hoisting and transportation, reducing the time and risk of impact during manual handling, making the spraying process smoother and more efficient.

[0027] (2) In Example 2, the design of the micro arc plate provides a better experience for product clamping and material picking. Its elastic metal material can buffer the impact of hard contact when the product is placed, avoiding damage to the steel needle or product edge. At the same time, the compressed and stored elastic potential energy will push the steel needle to move slightly when picking up the material, realizing the automatic separation of the product and the steel needle. This completely solves the problem of the product and the steel needle getting stuck due to powder adhesion after powder spraying, greatly shortening the material picking time of a single batch of products. It is especially suitable for multi-batch continuous spraying operations of products of the same specification.

[0028] The application of helical springs not only enhances support stability but also improves the durability of tooling and the quality of coating. The elasticity of the springs can distribute the support load on the product, preventing the tilted steel needles from deforming due to concentrated force. At the same time, the elastic tension allows the steel needles to always adhere to the product surface, maintaining stable support even with slight vibrations. In addition, the metal springs can also serve as an auxiliary conductive path, reducing the risk of conductive failure caused by powder accumulation on the steel needles, ensuring uniform powder adsorption during electrostatic powder coating, and also reducing the repetitive operation intensity for workers.

[0029] (3) In Example 3, the linkage structure between the support ball and the hose greatly improves the efficiency of steel needle adjustment. At the same time, after unlocking and locking the base, the rotation or movement of the vertical steel needle will be transmitted to the support ball through the hose, thereby synchronously driving the tilting steel needle adjustment. There is no need to adjust the position of the two steel needles separately, which greatly saves the adjustment time for adapting to different products. The flexible buffering characteristics of the hose also avoid damage caused by hard contact during the adjustment process. The center positioning of the support ball further ensures the accuracy of linkage adjustment.

[0030] The structure also features flexible individual adjustment capabilities. When only the locking base of a single steel needle is unlocked, the force transmission path can be cut off to achieve independent adjustment of the single steel needle. It can quickly adapt to the overall contour of the product through synchronous linkage, and can also finely adapt to the contour differences of the product in a local area through individual adjustment. This allows the tooling to meet the flexible adjustment needs of diverse products while also taking into account the accuracy of local support, effectively expanding the applicability of the tooling. Attached Figure Description

[0031] Figure 1 This is a frontal three-dimensional structural diagram of the tooling bracket in use according to Embodiment 1 of the present invention.

[0032] Figure 2 This is a rear-view three-dimensional structural diagram of the tooling bracket in use according to Embodiment 1 of the present invention.

[0033] Figure 3 This is a three-dimensional structural diagram of the vertical steel needle and the inclined steel needle in Embodiment 1 of the present invention.

[0034] Figure 4 This is a schematic diagram of the planar structure of the vertical steel needle and the inclined steel needle in Embodiment 1 of the present invention.

[0035] Figure 5 This is a schematic diagram of the three-dimensional structure of the tooling bracket in Embodiment 2 of the present invention.

[0036] Figure 6 This is a schematic diagram of the planar structure of the vertical steel needle and the inclined steel needle in Embodiment 2 of the present invention.

[0037] Figure 7This is a partially enlarged schematic diagram of the micro spring and helical spring in Embodiment 2 of the present invention.

[0038] Figure 8 This is a schematic diagram of the three-dimensional structure of the tooling bracket in Embodiment 3 of the present invention.

[0039] Figure 9 This is a schematic diagram of the three-dimensional structure of the supporting sphere in Embodiment 3 of the present invention.

[0040] Figure 10 This is a schematic diagram showing the rotation direction of the vertical steel needle and the inclined steel needle in Embodiment 3 of the present invention.

[0041] Figure 11 This is a schematic diagram showing the moving directions of the vertical and inclined steel needles in Embodiment 3 of the present invention.

[0042] The following are the labels in the diagram: 1. Tooling bracket; 11. Tooling lifting lug; 2. Product body; 3. Support module; 31. Vertical steel pin; 32. Inclined steel pin; 33. Locking base; 34. Miniature arc plate; 35. Helical spring; 36. First flexible hose; 37. Second flexible hose; 38. Supporting sphere. Detailed Implementation

[0043] 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 skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] Example 1 Please refer to Figure 1 - Figure 3 As shown, an adjustable spraying support fixture is used to place the product body 2 to be sprayed in order to meet the full spraying processing requirements of the surface of the product body 2. It includes a fixture bracket 1, and a support module 3 is provided on the surface of the fixture bracket 1. The support module 3 includes a vertical steel needle 31 for vertically limiting the product body 2, and an inclined steel needle 32 for supporting the product body 2 and increasing friction.

[0045] It should be noted that the tooling bracket 1 is composed of a horizontal support plate and an inclined support plate. The vertical steel needle 31 is installed on the horizontal support plate and is perpendicular to the horizontal support plate, while the inclined steel needle 32 is installed on the inclined support plate and is perpendicular to the inclined support plate. The upper end of the tooling bracket 1 is symmetrically fixedly connected with tooling lifting lugs 11, which are used for the overall hoisting and transportation of the tooling bracket 1.

[0046] Please refer to Figure 1 - Figure 4As shown, vertical steel needles 31 are distributed in majority on the horizontal support plate of the tooling bracket 1, and inclined steel needles 32 are distributed in majority on the inclined support plate of the tooling bracket 1. The spacing between different vertical steel needles 31 and inclined steel needles 32 is different to adapt to the support force requirements of different areas of the product body 2. The vertical steel needles 31 are adapted to the contour change position of the top edge of the product body 2, and the inclined steel needles 32 are adapted to the surface curvature of the non-edge area of ​​the product body 2. Locking bases 33 are installed on the outside of the ends of both vertical steel needles 31 and inclined steel needles 32. A knob is installed inside the locking base 33. By tightening or loosening the knob, the installation position of the vertical steel needles 31 and inclined steel needles 32 can be adjusted and limited and fixed. The vertical steel needles 31 and inclined steel needles 32 are movably connected to the tooling bracket 1 through the locking base 33.

[0047] Specifically, the tooling is hoisted and transported to the spraying station by the tooling lifting lugs 11 symmetrically fixed at the upper end of the tooling bracket 1. Then, based on the top edge contour of the product body 2 and the surface curvature of the non-edge area, the positions of the vertical steel needle 31 and the inclined steel needle 32 are pre-matched. Finally, the top edge area of ​​the product body 2 is attached to the support end of the vertical steel needle 31, while the non-edge area surface of the product body 2 is in contact with the support end of the inclined steel needle 32, thus completing the positioning and placement of the product on the tooling bracket 1.

[0048] like Figure 2 As shown, the vertical steel needle 31 is vertically installed on the horizontal support plate of the tooling bracket 1. Its support end can be engaged at the top edge contour change position of the product body 2 to limit the vertical direction of the product body 2 and avoid the risk of the product moving upward. The inclined steel needle 32 is vertically installed on the inclined support plate of the tooling bracket 1, and multiple sets of steel needles are distributed relatively equally. Its support end fits the surface curvature of the non-edge area of ​​the product body 2. The small contact area between the steel needle and the product surface increases the frictional resistance, which not only prevents the product from sliding down under the spray airflow and slight vibration, but also does not cover the product surface due to the small contact area, thus meeting the requirements of full spraying processing.

[0049] like Figure 4 As shown, both the vertical steel needle 31 and the inclined steel needle 32 extend from their ends to a locking base 33. When it is necessary to adjust the position of the vertical steel needle 31 and the inclined steel needle 32, the vertical steel needle 31 can be moved independently on the horizontal support plate of the tooling bracket 1 by operating the knob on the surface of the locking base 33 and loosening the knob to adapt to the top edge contour position of different product bodies 2. At the same time, the inclined steel needle 32 can be moved independently on the inclined support plate to match the support force requirements of different areas of the product body 2. After the position is adjusted to the appropriate state, the knob can be tightened in the opposite direction to limit and fix the steel needle through the locking base 33, ensuring the stability of the support structure during the spraying process.

[0050] The tooling lifting lug 11 can be hooked by a lifting device to realize the overall lifting and transportation of the tooling bracket 1 and the main body of the product 2, thereby improving the flow efficiency of the spraying process. The vertical steel needle 31 and the inclined steel needle 32 are connected to the tooling bracket 1 by the locking base 33. This design not only supports the individual disassembly and replacement of the steel needles, but also allows them to be easily removed and cleaned when the steel needles are contaminated with powder and affect their conductivity. This ensures the smooth conductive path between the workpiece and the tooling in the powder spraying process, while reducing the later maintenance costs.

[0051] Example 2 Please refer to Figure 5 - Figure 7 As shown, the intersection of the locking base 33 and the vertical steel needle 31 is hollowed out. A miniature arc plate 34 is installed on the outer wall of the end of the vertical steel needle 31. The miniature arc plate 34 is corrugated in shape, and both ends of the miniature arc plate 34 are fixedly connected to the locking base 33. The crest of the miniature arc plate 34 is in contact with the bottom of the vertical steel needle 31. The miniature arc plate 34 is made of elastic metal. When the product body 2 is placed on the tooling bracket 1, the miniature arc plate 34 is compressed by the pressure of the vertical steel needle 31. When the product body 2 is removed, the miniature arc plate 34 rebounds and pushes the vertical steel needle 31 to move slightly away from the locking base 33. The intersection of the locking base 33 and the inclined steel needle 32 is hollowed out. A helical spring 35 is sleeved on the outer wall of the end of the inclined steel needle 32. The two ends of the helical spring 35 are fixedly connected to the inclined steel needle 32 and the locking base 33, respectively.

[0052] Specifically, when the product body 2 is placed on the tooling bracket 1, its top edge applies pressure to the vertical steel needle 31, and the vertical steel needle 31 moves slightly towards the locking base 33. At this time, the corrugated micro arc plate 34 (elastic metal material) that is in contact with the bottom of the vertical steel needle 31 is compressed: on the one hand, the impact force when the product body 2 is placed is buffered by elastic deformation, avoiding damage to the edge of the vertical steel needle 31 or the product body 2 due to hard contact; on the other hand, the compressed micro arc plate 34 can store elastic potential energy. When the product body 2 is removed after the spraying is completed, the elastic potential energy of the micro arc plate 34 is released, and it rebounds away from the locking base 33, simultaneously pushing the vertical steel needle 31 to move slightly, so that the vertical steel needle 31 and the edge of the product body 2 are automatically separated, thus solving the problem of the product body 2 and the vertical steel needle 31 getting stuck due to powder adhesion after powder spraying.

[0053] When the inclined steel needle 32 supports the main body 2 of the product, the weight of the product is transmitted to the helical spring 35 on the outer wall of its end through the inclined steel needle 32. The spring is compressed: firstly, the supporting load of the product is dispersed through elastic buffering, preventing the inclined steel needle 32 from deforming due to concentrated force and extending the service life of the steel needle; secondly, the elastic tension of the spring allows the inclined steel needle 32 to always fit against the non-edge area surface of the main body 2 of the product. Even if the product vibrates slightly during the spraying process, the inclined steel needle 32 can maintain stable support through the slight expansion and contraction of the spring, preventing the product from slipping. At the same time, the helical spring 35 is made of conductive metal and can serve as an auxiliary conductive path between the inclined steel needle 32 and the locking base 33, reducing the risk of conductive failure caused by powder accumulation on the surface of the inclined steel needle 32 and ensuring uniform powder adsorption in the powder spraying process.

[0054] The structure of Example 2 is more suitable for multi-batch continuous spraying design of the same product body 2: Since there is no need to repeatedly adjust the steel needles at different positions, the support parameters can be fixed only when the product is adapted for the first time. The automatic unloading function of the micro arc plate 34 and the stable support function of the spiral spring 35 can significantly shorten the clamping and unloading time of a single batch of products. It is especially suitable for powder coating operations of single-specification products in mass production, which can effectively improve the production efficiency of continuous spraying and reduce the repetitive operation intensity of workers.

[0055] Example 3 Please refer to Figure 8 - Figure 11 As shown, a first flexible tube 36 and a second flexible tube 37 are fixedly connected to the outer walls of the vertical steel needle 31 and the inclined steel needle 32, respectively, at their respective ends. A support ball 38 is installed between the first flexible tube 36 and the second flexible tube 37. A cylindrical shaft is fixedly connected to the outer wall of the support ball 38. The end of the cylindrical shaft away from the support ball 38 is movably connected to the outer wall of the tooling bracket 1. The center of the support ball 38 is located at the intersection of the extension lines of the vertical steel needle 31 and the inclined steel needle 32. When the locking base 33 on the outer walls of the vertical steel needle 31 and the inclined steel needle 32 is unlocked simultaneously, the adjustment actions of the vertical steel needle 31 and the inclined steel needle 32 can be synchronously linked with the support ball 38 as the center.

[0056] Specifically, in the structure of Embodiment 3, the core components newly added are a first flexible hose 36, a second flexible hose 37, a supporting ball 38, and a cylindrical shaft. The ends of the vertical steel needle 31 and the inclined steel needle 32 extend to locking bases 33 and intersect with the supporting ball 38. This structure is more suitable for diverse spraying scenarios that require flexible adjustment of the steel needle position. The first flexible hose 36 and the second flexible hose 37 are flexible buffer connectors used to transmit the adjustment force of the vertical steel needle 31 and the inclined steel needle 32 and avoid hard contact damage. The supporting ball 38 is the core node for linkage adjustment, and its cylindrical shaft serves as a rotation fulcrum and is movably connected to the tooling bracket 1.

[0057] like Figure 10 As shown, when the locking base 33 on the outer wall of both the vertical steel needle 31 and the inclined steel needle 32 is simultaneously unlocked, taking the adjustment of the vertical steel needle 31 rotating in direction a as an example: since the locking base 33 is the mounting fulcrum of the vertical steel needle 31, when the vertical steel needle 31 rotates in direction a, its end will exert a force on the supporting ball 38 through the first flexible hose 36, causing the supporting ball 38 to tend to rotate in direction b; and the supporting ball 38 is connected to the end of the inclined steel needle 32 through the second flexible hose 37, and this rotational tendency will be transmitted to the inclined steel needle 32 through the second flexible hose 37. The end of the needle 32 drives the inclined steel needle 32 to rotate synchronously in the c direction for adjustment. During this process, the support ball 38 serves as the force transmission node between the vertical steel needle 31 and the inclined steel needle 32. With the help of the flexible buffer characteristics of the first hose 36 and the second hose 37, it not only achieves the synchronous rotation adjustment of the vertical steel needle 31 and the inclined steel needle 32, but also avoids deformation of the steel needle or base caused by hard contact. At the same time, the center of the support ball 38 is located at the intersection of the extension lines of the ends of the vertical steel needle 31 and the inclined steel needle 32, further ensuring the stability of the linkage adjustment.

[0058] like Figure 11 As shown, when the locking base 33 on the outer wall of both the vertical steel needle 31 and the inclined steel needle 32 is unlocked simultaneously, and the vertical steel needle 31 is adjusted vertically downwards: the end of the vertical steel needle 31 will drive the support ball 38 to move vertically synchronously through the first flexible hose 36, and the support ball 38 is connected to the end of the inclined steel needle 32 through the second flexible hose 37. Therefore, the moving force of the support ball 38 will be transmitted to the inclined steel needle 32 through the second flexible hose 37, synchronously driving the inclined steel needle 32 to move vertically together with the vertical steel needle 31. During this process, the first flexible hose 36 and the second flexible hose 37 act as flexible connectors, which can stably transmit the displacement force of the vertical steel needle 31 to the support ball 38, and then the support ball 38 transmits it to the inclined steel needle 32, realizing the synchronous movement adjustment of the vertical steel needle 31 and the inclined steel needle 32. There is no need to adjust the position of the two steel needles separately, which greatly improves the adjustment efficiency for adapting to different products.

[0059] When only the locking base 33 on the outer wall of the vertical steel needle 31 is unlocked, and the locking base 33 of the inclined steel needle 32 is kept in the locked state, adjusting the vertical steel needle 31 to rotate or move vertically in direction a will prevent the inclined steel needle 32 from moving with the trend of the supporting ball 38, as it is fixed by its own locking base 33. The force transmission of the first hose 36 will be blocked by the locked state of the inclined steel needle 32. Therefore, only the vertical steel needle 31 can be independently adjusted to rotate or move. Similarly, when only the locking base 33 of the inclined steel needle 32 is unlocked, the rotation or movement of the inclined steel needle 32 can also be controlled independently. By locking a single locking base 33, the force transmission path between the vertical steel needle 31 and the inclined steel needle 32 is cut off, realizing the independent adjustment of a single steel needle and adapting to the fine support requirements of product local contour differences.

[0060] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable spraying support fixture for placing a product body (2) to be sprayed, to meet the full spraying processing requirements of the surface of the product body (2), comprising a fixture bracket (1), characterized in that: The tooling bracket (1) has a support module (3) on its surface. The support module (3) includes a vertical steel needle (31) for vertically limiting the product body (2) and an inclined steel needle (32) for supporting the product body (2) and increasing friction. The vertical steel needle (31) and the inclined steel needle (32) are respectively fixedly connected to the outer walls of their respective ends. A first hose (36) and a second hose (37) are installed between the first hose (36) and the second hose (37). A support ball (38) is fixedly connected to the outer wall of the support ball (38). The end of the cylindrical shaft away from the support ball (38) is movably connected to the outer wall of the tooling bracket (1). The center of the supporting sphere (38) is located at the intersection of the extension line of the vertical steel needle (31) and the extension line of the inclined steel needle (32). When the locking base (33) on the outer wall of the vertical steel needle (31) and the inclined steel needle (32) is unlocked at the same time, the adjustment action of the vertical steel needle (31) and the inclined steel needle (32) can be synchronously linked with the supporting sphere (38) as the center.

2. The adjustable spraying support fixture according to claim 1, characterized in that: The tooling bracket (1) is composed of a horizontal support plate and an inclined support plate. The vertical steel needle (31) is installed on the horizontal support plate and is perpendicular to the horizontal support plate. The inclined steel needle (32) is installed on the inclined support plate and is perpendicular to the inclined support plate. The upper end of the tooling bracket (1) is symmetrically fixedly connected with tooling lifting lugs (11). The tooling lifting lugs (11) are used for the overall hoisting and transportation of the tooling bracket (1).

3. The adjustable spraying support fixture according to claim 1, characterized in that: The vertical steel needles (31) are distributed in the horizontal support plate of the tooling bracket (1), and the inclined steel needles (32) are distributed in the inclined support plate of the tooling bracket (1). The spacing between the different vertical steel needles (31) and the inclined steel needles (32) is different to adapt to the support force requirements of different areas of the product body (2).

4. The adjustable spraying support fixture according to claim 1, characterized in that: The vertical steel needle (31) is adapted to the contour change position of the top edge of the product body (2), and the inclined steel needle (32) is adapted to the surface curvature of the non-edge area of ​​the product body (2).

5. The adjustable spraying support fixture according to claim 1, characterized in that: Both the vertical steel needle (31) and the inclined steel needle (32) are equipped with locking bases (33) on their outer ends. The locking bases (33) are equipped with knobs. By tightening or loosening the knobs, the installation positions of the vertical steel needle (31) and the inclined steel needle (32) can be adjusted and fixed. The vertical steel needle (31) and the inclined steel needle (32) are movably connected to the tooling bracket (1) through the locking bases (33).

6. The adjustable spraying support fixture according to claim 5, characterized in that: The locking base (33) and the vertical steel needle (31) are hollowed out at the intersection. A micro arc plate (34) is installed on the outer wall of the end of the vertical steel needle (31). The micro arc plate (34) is corrugated in shape, and both ends of the micro arc plate (34) are fixedly connected to the locking base (33). The crest of the micro arc plate (34) is in contact with the bottom of the vertical steel needle (31).

7. An adjustable spraying support fixture according to claim 6, characterized in that: The micro arc plate (34) is made of elastic metal. When the product body (2) is placed on the tooling bracket (1), the micro arc plate (34) is compressed by the pressure of the vertical steel needle (31). When the product body (2) is removed, the micro arc plate (34) rebounds and pushes the vertical steel needle (31) to move slightly away from the locking base (33).

8. An adjustable spraying support fixture according to claim 5, characterized in that: The locking base (33) and the inclined steel needle (32) are hollowed out at the intersection. A helical spring (35) is sleeved on the outer wall of the end of the inclined steel needle (32). The two ends of the helical spring (35) are fixedly connected to the inclined steel needle (32) and the locking base (33) respectively.

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