A rotary workpiece holder for spray painting of a hand plate model

Abstract

The utility model relates to workpiece clamp technical field, concretely is a kind of rotary workpiece clamp for hand plate model spraying, base, rotary table subassembly is set in the top of the base, flexible clamp subassembly, flexible clamp subassembly is set in the top of the rotary table subassembly, positioning clamp subassembly, positioning clamp subassembly is set in the side of the rotary table subassembly.The utility model has strong versatility, the design of flexible clamp subassembly makes it can be through the deformation of flexible pin and the elastic adjustment of spring, adapt to a variety of different shapes and sizes hand plate model, greatly improve the versatility of clamp, reduce the cost and time of replacing clamp, operation is efficient, rotary table subassembly can automatically drive workpiece rotation, without manual adjustment workpiece position, save operation time, improve spraying efficiency, at the same time, the clamping and dismounting process of whole clamp is relatively simple, shortens the clamping time of workpiece.

Description

Technical Field

[0001] This utility model relates to the field of workpiece clamping technology, specifically a rotary workpiece clamp for spraying hand-made models. Background Technology

[0002] A rotary workpiece fixture for prototyping model painting is a device specifically designed to fix and position the workpiece during the painting process, while also allowing the workpiece to rotate. Its core function is to facilitate painting operations and achieve a uniform, high-quality painting effect.

[0003] Traditional fixtures have poor versatility, often designed for specific shapes and sizes of prototype models, making them difficult to adapt to diverse prototype models. When encountering workpieces of different specifications, the entire fixture may need to be replaced, resulting in high costs and low efficiency. For some complex-shaped prototype models, it is difficult to provide precise positioning, leading to problems such as missed areas and uneven spraying during painting, affecting the painting quality of the prototype model.

[0004] Based on this, the present invention provides a rotary workpiece fixture for spraying hand-made models to solve the aforementioned technical problems. Summary of the Invention

[0005] The purpose of this invention is to provide a rotary workpiece fixture for spraying hand-made models, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A rotary workpiece fixture for painting prototype models includes: Base; A turntable assembly is disposed at the top of the base; A flexible clamping assembly is disposed at the top of the turntable assembly; A positioning fixture assembly is disposed on the side of the turntable assembly.

[0007] Preferably, the turntable assembly further includes a turntable, a servo motor is mounted on the base at the bottom of the turntable, a commutator is mounted on the output end of the servo motor, a gear is mounted on the top of the commutator, and the gear meshes with the tooth groove at the bottom of the turntable. Preferably, the flexible clamp assembly further includes a metal rod, the bottom end of which is fixedly connected to a spring, a sliding plate is installed at the bottom end of the spring, and a flexible pin is nested around the metal rod; Preferably, the positioning clamp assembly further includes a rotating chuck, which is rotatably connected to the positioning rod. An air cushion is fixedly installed at the bottom end of the positioning rod, and a pressure pump is nested around the outside of the positioning rod. Preferably, a support platform is installed on the outside of the turntable. A cylinder is rotatably connected to the upper end of the support platform, and a piston rod is rotatably connected to the bottom end of the cylinder. The bottom end of the piston rod is rotatably connected to connecting block 1. Connecting rod 1 is connected to the bottom end of connecting block 1. Connecting rod 1 is rotatably connected to connecting block 2. Connecting rod 2 is slidably connected to the bottom of connecting block 2. Connecting rod 2 is fixedly connected to a slider. A drive shaft is installed at the bottom end of the slider. Pins are rotatably connected to both sides of connecting block 1, and a pull rod is connected to the bottom end of the pin. Preferably, a protective cover is installed on the top of the base.

[0008] Compared with existing technologies, the advantages of this utility model are: Strong versatility: The design of the flexible clamping assembly allows it to adapt to various shapes and sizes of prototype models through the deformation of flexible pins and other components, as well as the elastic adjustment of springs, greatly improving the versatility of the clamp and reducing the cost and time of clamp replacement. Precise positioning: The positioning clamping assembly, through the cooperation of rotating chucks, positioning rods, air cushions, and pressure pumps, can achieve multi-angle, high-precision positioning of the workpiece, ensuring the accuracy of the prototype model's position during the spraying process, thereby improving spraying quality and reducing the defect rate. Highly efficient operation: The turntable assembly can automatically rotate the workpiece, eliminating the need for manual adjustment of the workpiece position, saving operation time and improving spraying efficiency. At the same time, the entire clamping and disassembly process is relatively simple, shortening the workpiece clamping time. Attached Figure Description

[0009] Figure 1 This is a three-dimensional view of the overall structure of a rotary workpiece fixture for spraying a prototype model according to this utility model; Figure 2 This is a front view of the overall structure of a rotary workpiece fixture for spraying hand-made models according to this utility model; Figure 3 This is a cross-sectional view of a rotary workpiece clamp turntable assembly for spraying a prototype model according to this utility model. Figure 4 This is a cross-sectional view of a flexible fixture assembly for a rotary workpiece clamp used for spraying a prototype model according to this utility model. Figure 5 This is a cross-sectional view of a rotary workpiece clamping and positioning fixture assembly for spraying a prototype model according to this utility model. Figure 6 This is a side view of the elbow linkage mechanism of a rotary workpiece clamp for spraying a prototype model according to this utility model.

[0010] Legend: 1. Turntable assembly; 101. Gear; 102. Servo motor; 103. Commutator; 104. Turntable; 2. Flexible clamp assembly; 21. Metal rod; 22. Flexible pin; 23. Spring; 24. Sliding plate; 3. Positioning clamp assembly; 31. Rotary chuck; 32. Pressure pump; 33. Positioning rod; 34. Air cushion; 4. Connecting block No. 1; 5. Pin shaft; 6. Connecting rod No. 1; 7. Connecting block No. 2; 8. Pull rod; 9. Connecting rod No. 2; 10. Slider; 11. Drive shaft; 12. Base; 13. Cylinder; 14. Piston rod; 15. Support column; 16. Protective cover. Detailed Implementation

[0011] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model. Specific implementation examples: Please see Figures 1 to 6 A rotary workpiece fixture for spray painting of prototype models, comprising: Base 12; Turntable assembly 1, which is disposed at the top of the base 12; Flexible clamp assembly 2 is disposed at the top of the turntable assembly 1; Positioning clamp assembly 3 is disposed on the side of the turntable assembly 1.

[0013] It should also be noted that the turntable assembly 1 further includes a turntable 104, on which a servo motor 102 is mounted on a base 12 at the bottom of the turntable 104, a commutator 103 is mounted on the output end of the servo motor 102, and a gear 101 is mounted on the top of the commutator 103, which meshes with the tooth groove at the bottom of the turntable 104. Please see Figure 1 , Figure 3 When the item to be painted needs to rotate, first place the item on the turntable 104, turn on the servo motor 102, and the commutator 103 is activated under the drive of the servo motor 102, driving the gear 101 on the top of the commutator 103 to rotate, thereby causing the turntable 104 to rotate with the item. This automatically drives the workpiece to rotate, saving operation time.

[0014] It should also be noted that the flexible clamp assembly 2 further includes a metal rod 21, the bottom end of which is fixedly connected to a spring 23, a sliding plate 24 is installed at the bottom end of the spring 23, and a flexible pin 22 is nested around the metal rod 21. Please refer to 1. Figure 2 When it is necessary to fix the painted item, the item is placed on the turntable 104. Under the pushing action of the sliding plate 24, the spring 23 contracts and compresses, generating an outward pushing force, which pushes the metal rod 21 outward. The metal rod 21 can provide appropriate clamping according to the concavity and convexity of the item surface, adapting to various hand-made models of different shapes and sizes. The metal rod 21 has a small contact area, making the clamping of the item more precise.

[0015] It should also be noted that the positioning clamp assembly 3 further includes a rotating chuck 31, which is rotatably connected to the positioning rod 33. An air cushion 34 is fixedly installed at the bottom end of the positioning rod 33, and a pressure pump 32 is nested on the outside of the positioning rod 33. Please refer to 1. Figure 5 During the rotating painting process, if it is necessary to stop the rotation, first, the rotating chuck 31 is mounted above the turntable 104. Pressing down on the rotating chuck 31 causes the positioning rod 33 to experience downward resistance, reducing the volume of the pressure pump 32 and increasing the pressure. The air cushion 34 then exerts maximum downward pressure, thereby coordinating with the rotating chuck 31 to clamp the turntable 104, causing the turntable 104 to stop rotating. Through the cooperation of the rotating chuck, positioning rod, air cushion, and pressure pump, high-precision positioning of the workpiece can be achieved, ensuring the accuracy of the prototype model's position during the painting process, thereby improving painting quality and reducing the defect rate.

[0016] It should also be noted that a support platform 15 is installed on the outer side of the turntable 104. A cylinder 13 is rotatably connected to the upper end of the support platform 15. A piston rod 14 is rotatably connected to the bottom end of the cylinder 13. The bottom end of the piston rod 14 is rotatably connected to the first connecting block 4. A first connecting rod 6 is connected to the bottom end of the first connecting block 4. The first connecting rod 6 is rotatably connected to the second connecting block 7. A second connecting rod 9 is slidably connected to the bottom of the second connecting block 7. The second connecting rod 9 is fixedly connected to the slider 10. A drive shaft 11 is installed at the bottom end of the slider 10. Pins 5 are rotatably connected to both sides of the first connecting block 4. A pull rod 8 is connected to the bottom end of the pin 5. Please refer to 1. Figure 2 and Figure 6 To clamp items, cylinder 13 must first be activated. Piston rod 14 receives power from cylinder 13, and pull rod 8 controls the range of motion. When the pressure reaches its maximum, pull rod 8 presses down to the side of cylinder 13 to the maximum extent. Under the force of piston rod 14, connecting block 1 4 generates the previous thrust. Under the force, connecting rod 1 6 receives force and pushes slider 10 forward under the direction control of connecting block 2 7. The drive shaft 11 at the front end of slider 10 moves forward. The device is easy to operate.

[0017] It should also be noted that a protective cover 16 is installed on the top of the base 12.

[0018] Please refer to 1. Figure 3 The equipment needs to work stably. The protective cover 16 shields important parts such as the commutator 103 and the turntable 104, effectively preventing the gears 101 and the commutator 103 from being contaminated and improving the service life of the machine.

[0019] Specific implementation method: In practical application, when it is necessary to rotate the painted item, first place the item on the turntable 104, turn on the servo motor 102, and the commutator 103 is turned on under the drive of the servo motor 102, which drives the gear 101 on the top of the commutator 103 to rotate, so that the turntable 104 rotates with the item. The automatic rotation of the workpiece saves operation time. When it is necessary to fix the painted item, the item is placed on the turntable 104. Under the pushing action of the sliding plate 24, the spring 23 contracts and compresses, generating an outward pushing force, which pushes the metal rod 21 outward. The metal rod 21 can provide appropriate clamping according to the concavity and convexity of the item surface, adapting to various hand-made models of different shapes and sizes. The metal rod 21 has a small contact area, making the clamping of the item more precise. If it is necessary to stop the rotation during the rotating painting process, first, the rotating chuck 31 is selected and installed above the turntable 104. Pressing down the rotating chuck 31 causes the positioning rod 33 to be subjected to downward pressure resistance. The pump chamber volume of the pressure pump 32 decreases and the pressure increases. The air cushion 34 squeezes downward to the maximum extent, thereby linking the rotating chuck 31 to clamp the turntable 104, causing the turntable 104 to stop rotating. By using a rotating chuck, positioning rod, air cushion, and pressure pump, high-precision positioning of the workpiece can be achieved, ensuring the accuracy of the hand model's position during the spraying process, thereby improving spraying quality and reducing the defect rate. To clamp the item, cylinder 13 must first be activated. Piston rod 14 receives power from cylinder 13, and pull rod 8 controls the range of motion. When the pressure reaches its maximum, pull rod 8 presses down to the cylinder 13 to the maximum extent. Under the force of piston rod 14, connecting block 4 generates the previous thrust. Connecting rod 9 receives force under the force and the direction control of connecting block 7, pushing slider 10 forward. The drive shaft 11 at the front end of slider 10 moves forward. The device is easy to operate. For stable operation, the protective cover 16 shields important parts such as commutator 103 and turntable 104, effectively preventing contamination of gear 101 and commutator 103 and improving machine lifespan.

[0020] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A rotary workpiece clamp for spraying paint on a prototype model, characterized in that... ,include: Base (12); Turntable assembly (1), the turntable assembly (1) is disposed at the top of the base (12); Flexible clamp assembly (2) is disposed at the top of the turntable assembly (1); Positioning clamp assembly (3) is disposed on the side of the turntable assembly (1).

2. The rotary workpiece fixture for spraying a prototype model according to claim 1, characterized in that: The turntable assembly (1) also includes a turntable (104), on which a servo motor (102) is mounted on a base (12) at the bottom of the turntable (104), a commutator (103) is mounted at the output end of the servo motor (102), and a gear (101) is mounted on the top of the commutator (103), which meshes with the tooth groove at the bottom of the turntable (104).

3. A rotary workpiece fixture for spraying a prototype model according to claim 2, characterized in that: The flexible clamp assembly (2) also includes a metal rod (21), the bottom end of which is fixedly connected to a spring (23), a sliding plate (24) is installed at the bottom end of the spring (23), and a flexible pin (22) is nested around the metal rod (21).

4. A rotary workpiece fixture for spraying a prototype model according to claim 3, characterized in that: The positioning clamp assembly (3) also includes a rotating chuck (31), which is rotatably connected to the positioning rod (33). An air cushion (34) is fixedly installed at the bottom of the positioning rod (33), and a pressure pump (32) is nested outside the positioning rod (33).

5. A rotary workpiece fixture for spraying a prototype model according to claim 4, characterized in that: A support platform (15) is installed on the outside of the turntable (104). A cylinder (13) is rotatably connected to the upper end of the support platform (15). A piston rod (14) is rotatably connected to the bottom end of the cylinder (13). The bottom end of the piston rod (14) is rotatably connected to the first connecting block (4). A connecting rod (6) is connected to the bottom end of the first connecting block (4). The connecting rod (6) is rotatably connected to the second connecting block (7). A connecting rod (9) is slidably connected to the bottom of the second connecting block (7). The connecting rod (9) is fixedly connected to the slider (10). A drive shaft (11) is installed at the bottom end of the slider (10). Pins (5) are rotatably connected to both sides of the first connecting block (4). A pull rod (8) is connected to the bottom end of the pin (5).

6. A rotary workpiece fixture for spraying a prototype model according to claim 5, characterized in that: A protective cover (16) is installed on the top of the base (12).

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