A workpiece spraying fixture

Abstract

A workpiece spraying fixture, belonging to the field of spraying fixture technology, includes a worktable, a fixed base mounted on the upper surface of the worktable, a rotating platform rotatably mounted on the upper surface of the fixed base, a support frame fixedly mounted on the upper surface of the worktable, a spray gun with an adjustable spraying angle installed inside the support frame, and a support rod with an adjustable position mounted on the top of the support frame. A rotating clamp is installed through the right end of the support rod, located above the rotating platform. Lifting blocks are fixedly mounted on both the left and right surfaces of the upper end of the support frame. The lifting blocks are used to lift the support rod, so that the included angle between the support rod and the support frame is 90°. A fixing bolt is screwed between the support rod and the right-side lifting block. This utility model can improve the convenience of workpiece placement and ensure that the surface to be sprayed is unobstructed, so that the spraying operation can be completed in one go, improving work efficiency, eliminating the process of manually filling in defects in the spraying blind spots, and optimizing the overall spraying process.

Description

Technical Field

[0001] This utility model belongs to the field of spraying tooling technology, specifically relating to a workpiece spraying tooling. Background Technology

[0002] Spraying can form a protective film on the surface of a workpiece, isolating it from corrosive media. For example, spraying anti-rust paint on the surface of steel workpieces can effectively prevent oxygen and moisture from contacting the steel, slow down the rusting process, and extend the service life of the workpiece.

[0003] Traditional spraying fixtures, such as the "Flexible Orientation Workpiece Spraying Processing Device" published in CN221183348, optimize the spraying process to some extent by setting a spraying structure on top of the fixture and clamps on both sides.

[0004] However, in practical applications, the drawbacks of this technology have gradually become apparent. The spraying structure is located above the fixture, which hinders the placement of workpieces from above, increasing the difficulty of operation for workers, consuming more time and effort, and affecting production efficiency. Although the clamps on both sides of the fixture can fix the workpieces, they create spraying blind spots on the sides of the workpieces, making it difficult to complete the spraying operation on the sides of the workpieces in one go, which cannot meet the current spraying requirements. Therefore, another workpiece spraying fixture is provided. Utility Model Content

[0005] The purpose of this utility model is to provide a workpiece spraying fixture to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A workpiece spraying fixture includes a worktable, a fixed base fixedly mounted on the upper surface of the worktable, a rotating platform rotatably mounted on the upper surface of the fixed base, a support frame fixedly mounted on the upper surface of the worktable, a spray gun with an adjustable spraying angle installed inside the support frame, and a support rod with an adjustable position mounted on the top of the support frame. A rotating clamp is installed through the right end of the support rod, and the rotating clamp is located above the rotating platform. Lifting blocks are fixedly mounted on both the left and right surfaces of the upper end of the support frame. The lifting blocks are used to lift the support rod so that the included angle between the support rod and the support frame is 90°. A fixing bolt is screwed between the support rod and the right-side lifting block.

[0008] In the above technical solution, the rotating clamp includes a threaded rod that is vertically threaded to the support rod, and a recess is fixedly installed on the lower surface of the threaded rod. An inverted T-shaped pressure column is rotatably installed in the recess through an inner rotor bearing.

[0009] In the above technical solution, multiple load-bearing steel balls are circumferentially and equidistantly embedded and rotatably installed on the upper surface of the fixed base, and the load-bearing steel balls are used to support the rotating platform.

[0010] In the above technical solution, an annular groove is formed on the lower surface of the rotating platform, and the load-bearing steel balls are all located in the annular groove;

[0011] In the above technical solution, a connecting shaft is fixedly installed at the center of the lower surface of the rotating platform. The connecting shaft passes through the fixed base and the worktable. A support plate is fixedly installed inside the worktable. A drive motor is fixedly installed on the upper surface of the support plate. The output end of the drive motor is fixedly connected to the lower end of the connecting shaft.

[0012] In the above technical solution, an installation groove is provided through the support frame, and a spray gun carrier is rotatably installed in the installation groove. The spray gun is inserted and installed in the spray gun carrier. A clamping bolt is screwed through the outer surface of the spray gun carrier, and the lower surface of the clamping bolt is in contact with the outer surface of the spray gun.

[0013] In the above technical solution, adapter rods are fixedly installed on both the front and rear surfaces of the spray gun carrier. The adapter rods are rotatably connected to the support frame, and the front end of the adapter rod penetrates through the front surface of the support frame. An angle adjustment device is installed on the front surface of the support frame. The angle adjustment device includes a stepper motor and two gears fixedly installed on the front surface of the support frame. The two gears are respectively sleeved on the output end of the stepper motor and the outer surface of the front end of the adapter rod, and the two gears are meshed together.

[0014] In the above technical solution, a PLC programming controller is fixedly installed on the outer surface of the workbench, and the PLC programming controller is electrically connected to the drive motor and the stepper motor.

[0015] The workpiece spraying fixture of this utility model has the following advantages compared with the prior art:

[0016] This invention enables the placement of workpieces by detaching the fixing bolts from the right-side lifting block and flipping the support rod to move the rotating clamp away from the top of the rotating platform, greatly facilitating the placement of workpieces from above and improving ease of placement. During workpiece fixing and spraying, the flipped support rod is reset and fixed, ensuring the rotating clamp is perpendicular to the top of the rotating platform. A threaded rod drives an inverted T-shaped pressure column to clamp the workpiece in conjunction with the rotating platform. The workpiece rotates along with the platform, ensuring that the surface to be sprayed is unobstructed, allowing for a one-time spraying operation. This not only improves work efficiency but also eliminates the need for manual re-filling of spraying blind spots, optimizing the overall spraying process and improving the quality and efficiency of the spraying operation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the structure of this utility model in use.

[0019] Figure 3 This is a cross-sectional structural diagram of the present invention in use.

[0020] Figure 4 This is a schematic diagram of the spray gun carrier structure of this utility model.

[0021] Figures 1-4 The components include: 1. Workbench; 11. Fixed base; 111. Load-bearing steel ball; 12. Drive motor; 13. PLC programming integrated controller; 2. Rotating platform; 21. Connecting shaft; 3. Support frame; 31. Mounting slot; 32. Lifting block; 4. Support rod; 41. Fixing bolt; 5. Rotating clamp; 51. Threaded rod; 52. Concave block; 53. Inverted T-shaped pressure column; 6. Spray gun carrier; 61. Adapter rod; 62. Tightening bolt; 7. Angle adjustment mechanism; 71. Stepper motor; 72. Gear. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In this embodiment, front, back, left, right, top, and bottom are... Figure 1 Describe the reference plane. See [link / reference] Figures 1-4 This utility model provides a technical solution:

[0024] A workpiece spraying fixture includes a worktable 1, a fixed seat 11 fixedly installed on the upper surface of the worktable 1, characterized in that a rotating platform 2 is rotatably installed on the upper surface of the fixed seat 11, a support frame 3 is fixedly installed on the upper surface of the worktable 1, a spray gun with an adjustable spraying angle is installed inside the support frame 3, and a support rod 4 with an adjustable position is installed at the top of the support frame 3, a rotating clamp 5 is installed through the right end of the support rod 4, the rotating clamp 5 is located above the rotating platform 2, and lifting blocks 32 are fixedly installed on both the left and right surfaces of the upper end of the support frame 3, the lifting blocks 32 are used to lift the support rod 4, so that the included angle between the support rod 4 and the support frame 3 is 90°, and a fixing bolt 41 is screwed between the support rod 4 and the right lifting block 32.

[0025] It should be noted that, in combination Figure 1 and Figure 2 As shown, the rotating clamp 5 includes a threaded rod 51 that is threaded perpendicularly to the support rod 4. A recess 52 is fixedly installed on the lower surface of the threaded rod 51. An inverted T-shaped pressure column 53 is rotatably installed in the recess 52 through an inner rotor bearing.

[0026] Before placing the workpiece to be sprayed onto the rotating platform 2, first disengage the fixing bolt 41 from the right-side lifting block 32. Then, flip the support rod 4 to the left to move the rotating clamp 5 away from the top of the rotating platform 2, so that the workpiece can be placed directly onto the rotating platform 2 from above, making the workpiece placement more convenient and faster. Afterward, manually adjust the position of the workpiece so that it is centered on the upper surface of the rotating platform 2. Then, flip the support rod 4 back to its original position and use the fixing bolt 41 to re-fix the support rod 4 to the right-side lifting block 32, maintaining an angle of 99° between the support rod 4 and the support frame 3. At 0°, the rotating fixture 5 is perpendicular to the top of the rotating platform 2. By turning the threaded rod 51, the concave block 52 and the inverted T-shaped pressure column 53 move downward, so that the lower surface of the inverted T-shaped pressure column 53 is in contact with the upper surface of the workpiece. The inverted T-shaped pressure column 53 and the rotating platform 2 cooperate to clamp and fix the workpiece. When the rotating platform 2 rotates, the inverted T-shaped pressure column 53 and the workpiece also rotate. At this time, the surface of the workpiece that is to be sprayed is no longer blocked during the rotation, which can effectively carry out the spraying operation in one go, improve work efficiency, and solve the problem that the blind spots of spraying need to be manually sprayed again to fill the defects.

[0027] like Figure 2 As shown, multiple load-bearing steel balls 111 are circumferentially and equidistantly embedded in the upper surface of the fixed base 11. The load-bearing steel balls 111 support the rotating platform 2 without affecting its rotation. To further improve the stability during rotation, an annular groove is provided on the lower surface of the rotating platform 2. The load-bearing steel balls 111 are all located in the annular groove, which can further limit the rotation of the load-bearing steel balls 111, thereby improving the stability of the rotating platform 2 during operation.

[0028] like Figure 2 As shown, a connecting shaft 21 is fixedly installed at the center of the lower surface of the rotary stage 2. The connecting shaft 21 passes through the fixed base 11 and the worktable 1. A support plate is fixedly installed inside the worktable 1. A drive motor 12 is fixedly installed on the upper surface of the support plate. The output end of the drive motor 12 is fixedly connected to the lower end of the connecting shaft 21. The drive motor 12 is an MHMF202L1 type 200W servo motor with a rated speed of 3000r / min. After being reduced by an internal 1:100 planetary reducer (not shown), it drives the connecting shaft 21 to drive the rotary stage 2 to achieve precise rotational motion.

[0029] Combination Figure 2 and Figure 4 As shown, a mounting groove 31 is provided through the support frame 3. A spray gun carrier 6 is rotatably installed in the mounting groove 31. The spray gun is inserted and installed in the spray gun carrier 6. A clamping bolt 62 is screwed through the outer surface of the spray gun carrier 6. The lower surface of the clamping bolt 62 is in contact with the outer surface of the spray gun. After the spray gun is inserted into the spray gun carrier 6, the spray nozzle extends out from the right end of the spray gun carrier 6. The spray gun and the spray gun carrier 6 are fixed together by the clamping bolt 62. The spray gun is connected to an external paint pump for use.

[0030] like Figure 2 As shown, adapter rods 61 are fixedly installed on both the front and rear surfaces of the spray gun carrier 6. The adapter rods 61 are rotatably connected to the support frame 3, and the front adapter rod 61 penetrates the front surface of the support frame 3. An angle adjustment device 7 is installed on the front surface of the support frame 3. The angle adjustment device 7 includes a stepper motor 71 fixedly installed on the front surface of the support frame 3 and two gears 72. The two gears 72 are respectively sleeved on the output end of the stepper motor 71 and the outer surface of the front adapter rod 61, and the two gears 72 are meshed together. The stepper motor 71 uses a 4-speed... The 2BYGH34-0504A type two-phase hybrid stepper motor has a step angle of 1.8°, a holding torque of 0.4 N·m, and an adaptable voltage of 24VDC. This model has high microstepping drive capability (up to 256 microsteps) and can achieve a positioning accuracy of 0.007° through microstepping control, meeting the process tolerance requirement of ±0.5° for the spraying angle. The stepper motor 71, through the cooperation between two gears 72, can drive the spray gun carrier 6 to rotate through the front adapter rod 61, thereby precisely adjusting the spraying angle of the spray gun.

[0031] Finally, a PLC programming controller 13 is fixedly installed on the outer surface of the workbench 1. The PLC programming controller 13 is electrically connected to the drive motor 12 and the stepper motor 71. The PLC programming controller 13 is used to pre-program and control the drive motor 12 and the stepper motor 71 so that they can operate with a certain precision. This connection method is a common technical means used by the PLC programming controller 13 in the field of precision motor control, and will not be explained in detail here.

Claims

1. A workpiece spraying fixture, comprising a worktable (1), wherein a fixing seat (11) is fixedly mounted on the upper surface of the worktable (1), characterized in that, A rotating platform (2) is rotatably mounted on the upper surface of the fixed base (11), and a support frame (3) is fixedly mounted on the upper surface of the worktable (1). An adjustable spray gun is installed inside the support frame (3), and a support rod (4) with an adjustable position is installed at the top of the support frame (3). A rotating clamp (5) is installed through the right end of the support rod (4), and the rotating clamp (5) is located above the rotating platform (2). Lifting blocks (32) are fixedly installed on the upper left and right surfaces of the support frame (3). The lifting blocks (32) are used to lift the support rod (4) so ​​that the angle between the support rod (4) and the support frame (3) is 90°. The support rod (4) and the lifting block (32) on the right side are screwed together with fixing bolts (41).

2. The workpiece spraying fixture according to claim 1, characterized in that, The rotating clamp (5) includes a threaded rod (51) that is vertically threaded to the support rod (4). A recess (52) is fixedly installed on the lower surface of the threaded rod (51). An inverted T-shaped pressure column (53) is rotatably installed in the recess (52) through an inner rotor bearing.

3. The workpiece spraying fixture according to claim 1, characterized in that, The upper surface of the fixed base (11) is circumferentially and equidistantly embedded with a plurality of load-bearing steel balls (111), which are used to support the rotating platform (2).

4. The workpiece spraying fixture according to claim 3, characterized in that, The lower surface of the rotating platform (2) is provided with an annular groove, and the load-bearing steel balls (111) are all located in the annular groove.

5. The workpiece spraying fixture according to claim 3, characterized in that, A connecting shaft (21) is fixedly installed at the center of the lower surface of the rotating platform (2). The connecting shaft (21) passes through the fixed seat (11) and the worktable (1). A support plate is fixedly installed inside the worktable (1). A drive motor (12) is fixedly installed on the upper surface of the support plate. The output end of the drive motor (12) is fixedly connected to the lower end of the connecting shaft (21).

6. The workpiece spraying fixture according to claim 5, characterized in that, The support frame (3) has a through-hole for a mounting groove (31), and a spray gun carrier (6) is rotatably mounted in the mounting groove (31). The spray gun is inserted into the spray gun carrier (6), and a tightening bolt (62) is screwed through the outer surface of the spray gun carrier (6). The lower surface of the tightening bolt (62) is in contact with the outer surface of the spray gun.

7. A workpiece spraying fixture according to claim 6, characterized in that, The front and rear surfaces of the spray gun carrier (6) are fixedly equipped with adapter rods (61), and the adapter rods (61) are rotatably connected to the support frame (3), and the front end of the adapter rod (61) penetrates the front surface of the support frame (3). An angle adjustment device (7) is installed on the front surface of the support frame (3). The angle adjustment device (7) includes a stepper motor (71) and two gears (72) fixedly installed on the front surface of the support frame (3). The two gears (72) are respectively sleeved on the output end of the stepper motor (71) and the outer surface of the front adapter rod (61), and the two gears (72) are meshed together.

8. The workpiece spraying fixture according to claim 7, characterized in that, A PLC programming controller (13) is fixedly installed on the outer surface of the workbench (1), and the PLC programming controller (13) is electrically connected to the drive motor (12) and the stepper motor (71).

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