Clamping tool for thermal spraying
By designing a combination of clamping components and cleaning parts, the problems of incomplete spraying and inconvenient cleaning in thermal spraying clamping fixtures are solved, realizing all-round spraying and automatic cleaning of workpieces, and improving spraying efficiency and convenience.
Patent Information
- Application Number
- CN202422504576.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-16
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-10-16
AI Technical Summary
Existing thermal spraying clamping fixtures suffer from incomplete spraying and require manual disassembly of parts for cleaning, making them inconvenient to use.
A clamping fixture for thermal spraying is designed, which includes a clamping component, a cooling component, a placement component and a cleaning component. The all-round spraying of the workpiece is achieved by turning over the clamping block and rotating the placement plate, and automatic cleaning is achieved by the friction between the scraper and the placement plate.
It realizes all-round spraying of the workpiece, improves the integrity of the spraying, simplifies the cleaning process and reduces manual intervention.
Smart Images

Figure CN223475312U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of clamping fixture technology, specifically to a clamping fixture for thermal spraying. Background Technology
[0002] Thermal spraying is a coating technology that uses high-temperature spraying of material powder to form a coating. The main steps of thermal spraying are: 1. Surface pretreatment: The surface needs to be cleaned to remove dirt so that the powder can adhere well to the surface. 2. Heating the nozzle and powder: The powder is heated to 650 to 900 degrees Celsius and fed into the nozzle. 3. Powder spraying: At high temperature, the powder instantly melts into droplets and is sprayed onto the surface. 4. Cooling and curing: The powder rapidly cools and solidifies on the surface to form a dense coating.
[0003] A search revealed existing technology (publication number: CN220900739U), which describes "a thermal spraying clamping fixture, comprising a heat sink block and a support block. Two insert rods are fixedly installed on the back of the support block. The heat sink block has insertion holes corresponding to the insert rods. A positioning component is provided on the back of the heat sink block. The positioning component includes a support fixedly installed with the heat sink block, and a movable rod is movably connected inside the support. Positioning rods are fixedly installed at both ends of the movable rod." The advantages of this invention are: by setting the positioning component, it achieves both convenient positioning of the support block after it is combined with the heat sink block, and the ability to press the insert rods with a pressure rod to separate the support block from the heat sink block. This effectively facilitates the separation of the support block and the heat sink block, allowing multiple support blocks to be switched back and forth, thus improving the thermal spraying efficiency of the equipment and making it easier for workers to clean powder clumps from the surface of the support blocks.
[0004] While existing thermal spraying clamping fixtures facilitate disassembly and cleaning, they still have some shortcomings: the clamping plates and support blocks involved in existing thermal spraying clamping fixtures prevent the clamped parts of the workpiece from being sprayed, resulting in deviations in the uniformity of the spraying. Furthermore, it is not convenient to flip the workpiece for spraying. In addition, manual disassembly and cleaning of the parts is required, which is quite troublesome. Utility Model Content
[0005] To overcome the shortcomings of existing technologies, a clamping fixture for thermal spraying is provided to solve the problems of incomplete spraying and the need for manual disassembly of parts for cleaning, which leads to inconvenience in use.
[0006] To achieve the above objectives, a clamping fixture for thermal spraying is provided, comprising: a thermal spraying clamping fixture base, a side plate connected to the upper side of the thermal spraying clamping fixture base, a clamping assembly provided on the inner side of the side plate, and a cylinder connected to the outer side of the clamping assembly, a cooling assembly and a thermal spraying component provided on the upper side of the clamping assembly, the cooling assembly including a fan connected to the outer side of the side plate, a placement assembly provided on the lower side of the clamping assembly, the placement assembly being located on the upper side of the thermal spraying clamping fixture base, and a cleaning component provided on the upper side of the placement assembly.
[0007] Furthermore, the clamping assembly includes a drive box connected to the piston end of the cylinder, and the upper and lower ends of the drive box are connected to fixing blocks, and the inner end of the fixing blocks is connected to an auxiliary block.
[0008] Furthermore, the inner end of the auxiliary block is connected to a push plate, and the inner end of the push plate is connected to a clamping block, and the clamping block has two sets of horizontally opposite clamping blocks.
[0009] Furthermore, the cooling assembly also includes a flexible hose connected to the air outlet of the fan, with an air outlet connected to the other end of the hose, and a connecting block connected to the upper end of the air outlet.
[0010] Furthermore, the cooling assembly also includes an electric slide rail, and an electric slider is connected to the surface of the electric slide rail, and the electric slider is connected to the upper end of the connecting block.
[0011] Furthermore, the placement assembly includes a drive box, and the drive box is equipped with a motor and a gear set, and one of the gears in the gear set is internally connected to a rotating shaft.
[0012] Furthermore, a turntable is connected to the upper end of the rotating shaft, and an electric actuator is installed on the lower side of the turntable, with a placement plate fixed to the upper end of the electric actuator.
[0013] Furthermore, the cleaning component includes a connecting rod, and a scraper is connected to the lower side of the connecting rod. The lower edge of the scraper is chamfered, and a top block is provided on the horizontal opposite side of the scraper.
[0014] The beneficial effects of this utility model are as follows:
[0015] 1. In use, place the workpiece on the placement plate included in the placement assembly, and then clamp it using the clamping blocks included in the clamping assembly. Then, move the placement plate down using the electric push rod. At this point, start the thermal spraying process. After one side is finished being sprayed, activate the drive box to flip the workpiece over using the clamping blocks, making it easier to spray the other side. Then, activate the electric push rod again to move the placement plate up, placing it under the workpiece. Then, control the clamping blocks to retract and release, placing the workpiece on the placement plate. Activate the drive box, causing the gear set, rotating shaft, and turntable to rotate the placement plate at an angle, causing the part that was just clamped to misalign with the clamping blocks. Then, control the clamping blocks again to clamp and spray, thus achieving a complete spraying effect.
[0016] 2. During cleaning, first remove the workpiece from the placement plate. Then, drive the connecting rod included in the cleaning component to move the scraper so that the inner end of the scraper is located at the center of the placement plate. Then, start the electric push rod to push the placement plate up to contact the scraper. Then, start the drive box again to rotate the placement plate. This allows the paint on the surface of the placement plate to be scraped off through the friction between the scraper and the placement plate, thus achieving a cleaning effect. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.
[0018] Figure 2 This is an embodiment of the present utility model. Figure 1 Schematic diagram of the structure at point A in the middle.
[0019] Figure 3 This is a three-dimensional structural diagram of the clamping component according to an embodiment of the present utility model.
[0020] Figure 4 This is a three-dimensional structural diagram of the cleaning component according to an embodiment of the present utility model.
[0021] In the diagram: 1. Thermal spraying clamping fixture base; 11. Side plate; 2. Clamping assembly; 21. Drive box; 22. Fixing block; 23. Auxiliary block; 24. Push plate; 25. Clamping block; 3. Cooling assembly; 31. Hose; 32. Air outlet; 33. Connecting block; 34. Electric slider; 35. Electric slide rail; 4. Thermal spraying part; 5. Placement assembly; 51. Drive box; 52. Gear set; 53. Rotating shaft; 54. Turntable; 55. Electric push rod; 56. Placement plate; 6. Cleaning part; 61. Connecting rod; 62. Scraper; 7. Top block. Detailed Implementation
[0022] Reference Figures 1 to 4As shown, this utility model provides a clamping fixture for thermal spraying, including: a thermal spraying clamping fixture base 1, a side plate 11 connected to the upper side of the thermal spraying clamping fixture base 1, a clamping assembly 2 provided on the inner side of the side plate 11, and a cylinder connected to the outer side of the clamping assembly 2. A cooling assembly 3 and a thermal spraying part 4 are provided on the upper side of the clamping assembly 2. The cooling assembly 3 includes a fan connected to the outer side of the side plate 11, and a flexible hose 31 connected to the air outlet of the fan. The other end of the flexible hose 31 is connected to an air outlet 32, and air is discharged from the outlet. A connecting block 33 is connected to the upper end of the opening 32. The cooling component 3 also includes an electric slide rail 35, and an electric slider 34 is connected to the surface of the electric slide rail 35. The electric slider 34 is connected to the upper end of the connecting block 33. A placement component 5 is provided on the lower side of the clamping component 2. The placement component 5 is located on the upper side of the thermal spraying clamping fixture base 1. A cleaning component 6 is provided on the upper side of the placement component 5. The cleaning component 6 includes a connecting rod 61. A scraper 62 is connected to the lower side of the connecting rod 61. The lower edge of the scraper 62 is chamfered. A top block 7 is provided on the horizontal opposite side of the scraper 62.
[0023] Specifically, the thermal spraying clamping fixture base 1 and the inner and outer components constitute the main structure of the thermal spraying clamping fixture involved in this application.
[0024] Specifically, the thermally sprayed component 4 includes a nozzle and a pipe, and a telescopic structure is provided in the horizontal direction of the pipe to realize the horizontal movement of the nozzle, thereby uniformly spraying the workpiece.
[0025] As a preferred implementation, after the thermal spraying is completed, the fan included in the cooling component 3 is used to cool the workpiece below through the hose 31 and the air outlet 32, which facilitates the cooling and solidification of the coating and makes it easier to remove it in time for the next spraying operation, thus improving the spraying efficiency.
[0026] Specifically, the outer ends of the connecting rod 61 and the top block 7 are both connected to cylinders, which facilitates the extension and retraction of the scraper 62, and the top block 7 can be squeezed and fixed on the opposite side when the scraper 62 is extended, thereby increasing the stability of the scraper 62 when it rubs against the placement plate 56.
[0027] like Figure 1 and Figure 3 In the clamping assembly 2, there is a drive box 21 connected to the piston end of the cylinder, and the upper and lower ends of the drive box 21 are connected to a fixing block 22. The inner end of the fixing block 22 is connected to an auxiliary block 23. The inner end of the auxiliary block 23 is connected to a push plate 24. The inner end of the push plate 24 is connected to a clamping block 25. The clamping block 25 is provided with two sets of horizontally opposite clamping blocks.
[0028] Specifically, the drive box 21 is equipped with a motor, and the output shaft of the motor rotates through the push plate 24 and connects to the clamping block 25. The clamping block 25 is slidably connected to the push plate 24, and an N-shaped slot is opened on the inner side of the clamping block 25, thereby realizing the rotation and flipping of the clamped workpiece.
[0029] like Figure 1 In the middle, the placement component 5 includes a drive box 51, and the drive box 51 is provided with a motor and a gear set 52. One of the gears in the gear set 52 is internally connected to a rotating shaft 53. The upper end of the rotating shaft 53 is connected to a turntable 54, and an electric push rod 55 is installed on the lower side of the turntable 54. The upper end of the electric push rod 55 is fixed with a placement plate 56.
[0030] Specifically, another gear in the gear set 52 is connected to the output end of the motor, which facilitates the rotation of the shaft 53 and the turntable 54 through the meshing gear set 52, while the drive box 51 provides a spray-paint contamination prevention effect for the internal structure.
[0031] In use, the workpiece is placed on the placement plate included in the placement assembly, and then clamped by the clamping blocks included in the clamping assembly. The placement plate is then lowered using an electric actuator. At this point, the thermal spraying process begins. After one side is coated, the drive box is activated to flip the clamping blocks over the workpiece, facilitating coating of the other side. The electric actuator is then activated again to push the placement plate upwards, positioning it under the workpiece. The clamping blocks are then retracted and released, allowing the workpiece to fall onto the placement plate. The drive box is then activated, allowing the gear set and rotating shaft to engage the workpiece. The turntable drives the placement plate to rotate at an angle, causing the part that was just clamped by the clamping block to deviate from the clamping block; then the clamping block is controlled again to clamp and spray; during cleaning, the workpiece is first removed from the placement plate, and at this time the connecting rod included in the cleaning component drives the scraper to move, so that the inner end of the scraper is located at the center of the placement plate. Then the electric push rod is activated to push the placement plate up to contact the scraper. Then the drive box is activated again to drive the placement plate to rotate, so that the paint on the surface of the placement plate is scraped off by the friction between the scraper and the placement plate.
[0032] This utility model of a clamping fixture for thermal spraying effectively solves the problems of incomplete spraying and the need for manual disassembly of parts for cleaning in existing thermal spraying clamping fixtures, which leads to inconvenience in use. Based on the existing thermal spraying clamping fixture technology, it increases the flipping and rotation effects of the clamping fixture, improves the integrity of spraying, and facilitates spraying of parts contaminated by paint.
Claims
1. A clamping fixture for thermal spraying, comprising: A thermal spraying clamping fixture base (1) is characterized in that: a side plate (11) is connected to the upper side of the thermal spraying clamping fixture base (1), and a clamping assembly (2) is provided on the inner side of the side plate (11), and a cylinder is connected to the outer side of the clamping assembly (2). A cooling assembly (3) and a thermal spraying component (4) are provided on the upper side of the clamping assembly (2), and the cooling assembly (3) includes a fan connected to the outer side of the side plate (11). A placement assembly (5) is provided on the lower side of the clamping assembly (2), and the placement assembly (5) is located on the upper side of the thermal spraying clamping fixture base (1), and a cleaning component (6) is provided on the upper side of the placement assembly (5).
2. The clamping fixture for thermal spraying according to claim 1, characterized in that, The clamping assembly (2) includes a drive box (21) connected to the piston end of the cylinder, and the upper and lower ends of the drive box (21) are connected to a fixing block (22), and the inner end of the fixing block (22) is connected to an auxiliary block (23).
3. The clamping fixture for thermal spraying according to claim 2, characterized in that, The inner end of the auxiliary block (23) is connected to a push plate (24), and the inner end of the push plate (24) is connected to a clamping block (25), and the clamping block (25) is provided with two sets of horizontally opposite clamping blocks.
4. The clamping fixture for thermal spraying according to claim 1, characterized in that, The cooling assembly (3) also includes a flexible hose (31) connected to the air outlet of the fan, and the other end of the flexible hose (31) is connected to an air outlet (32), and the upper end of the air outlet (32) is connected to a connecting block (33).
5. A clamping fixture for thermal spraying according to claim 1, characterized in that, The cooling assembly (3) also includes an electric slide rail (35), and an electric slider (34) is connected to the surface of the electric slide rail (35), and the electric slider (34) is connected to the upper end of the connecting block (33).
6. The clamping fixture for thermal spraying according to claim 1, characterized in that, The placement assembly (5) includes a drive box (51), and the drive box (51) is provided with a motor and a gear set (52), and one of the gears in the gear set (52) is internally connected to a rotating shaft (53).
7. A clamping fixture for thermal spraying according to claim 6, characterized in that, The upper end of the rotating shaft (53) is connected to a turntable (54), and an electric push rod (55) is installed on the lower side of the turntable (54), and a placement plate (56) is fixed on the upper end of the electric push rod (55).
8. A clamping fixture for thermal spraying according to claim 1, characterized in that, The cleaning component (6) includes a connecting rod (61), and a scraper (62) is connected to the lower side of the connecting rod (61). The lower edge of the scraper (62) is chamfered, and a top block (7) is provided on the horizontal opposite side of the scraper (62).
Citation Information
Patent Citations
Thermal spraying clamping tool
CN220900739U