Rotary clamping mechanism for thermal spraying

Abstract

The utility model discloses a rotary clamping mechanism for thermal spraying, which comprises a base, the top of the base is provided with two fixing seats, the close surfaces of the two fixing seats are both rotatably connected with second rotating shafts, one end of one of the second rotating shafts is connected with a second driving motor, the second driving motor is fixed on the side surface of the fixing seat, and the other end of the second rotating shaft is connected with a rotating shaft. The side face of each second rotating shaft is slidably sleeved with a sliding sleeve, a strip-shaped mounting plate is mounted at one end of each sliding sleeve, the sliding sleeves are connected with the second rotating shafts through locking mechanisms, and the two ends of the close faces of the two strip-shaped mounting plates are rotationally connected with first rotating shafts. One end of each first rotating shaft is slidably sleeved with a connecting sleeve, a second rotating shaft can be driven by a second driving motor to rotate, then the positions of the two pairs of clamping plates can be adjusted, when a workpiece between one pair of clamping plates is sprayed, a worker can conduct feeding and discharging on the other pair of clamping plates, and the using effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of clamping mechanism technology, and in particular to a rotary clamping mechanism for thermal spraying. Background Technology

[0002] Thermal spraying is a surface engineering technology that involves heating materials to a molten or semi-molten state and spraying them at high speed onto the surface of a substrate to form a coating with specific properties. When spraying a workpiece, it is necessary to use a fixture to hold and fix the workpiece in place.

[0003] Existing clamping mechanisms for thermal spraying are generally installed below or to the side of the nozzle. They hold and fix the workpiece in place using clamps, and then spray the workpiece through the nozzle. However, during use, the previous workpiece must be removed after spraying before the next workpiece can be fixed and sprayed. Spraying and loading / unloading cannot be performed simultaneously, resulting in poor performance. Furthermore, existing clamping mechanisms can generally only clamp and fix workpieces of the same size. When clamping workpieces of different sizes, it is necessary to replace the clamping mechanism with one of the corresponding sizes, leading to poor performance.

[0004] Therefore, we provide a rotary clamping mechanism for thermal spraying. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned technical problems by providing a rotary clamping mechanism for thermal spraying, which allows for the loading and unloading of workpieces during the spraying process.

[0006] In view of this, the present invention provides a rotary clamping mechanism for thermal spraying, including a base, two fixed seats are mounted on the top of the base, and a second rotating shaft is rotatably connected to the adjacent surfaces of the two fixed seats. One end of one of the second rotating shafts is connected to a second drive motor, and the second drive motor is fixed on the side of the fixed seat.

[0007] Each of the second rotating shafts has a sliding sleeve on its side, and a strip mounting plate is installed at one end of each sliding sleeve. The sliding sleeve is connected to the second rotating shaft by a locking mechanism.

[0008] Both ends of the adjacent surfaces of the two strip mounting plates are rotatably connected to a first rotating shaft. A connecting sleeve is slidably fitted at one end of each first rotating shaft, and a clamping plate is installed at one end of each connecting sleeve. A workpiece is provided between the corresponding two clamping plates.

[0009] One end of the sliding sleeve is rotatably connected to an adjusting screw sleeve, which is fitted onto the side of the first rotating shaft and threadedly connected to the first rotating shaft. The inner surface of the connecting sleeve is connected to the first rotating shaft through a limiting mechanism. One end of each of the two first rotating shafts on one side is connected to a first drive motor, which is fixed on the side of the strip mounting plate.

[0010] Preferably, a linear drive module is connected to the top side of the base via a rail, and a mounting bracket is installed on the top of the linear drive module. The mounting bracket is L-shaped, and a nozzle is installed on the top of the mounting bracket, with the nozzle outlet located above the workpiece.

[0011] Preferably, the limiting mechanism includes several limiting strips fixed on the inner side wall of the connecting sleeve, and several limiting grooves are opened on the side of each of the first rotating shafts, with one side of each limiting strip extending into the limiting groove.

[0012] Preferably, the locking mechanism includes a plurality of threaded through holes opened on one side of the sliding sleeve, each threaded through hole being provided with a locking bolt, and a strip groove being opened on the side of the second rotating shaft, with one end of each locking bolt extending into the strip groove and abutting against the inner wall of the strip groove.

[0013] Preferably, a plurality of receiving grooves are provided on one side of the sliding sleeve. The receiving grooves are coaxially arranged with the corresponding threaded through holes and are connected to each other. When the locking bolt is tightened, one end of the locking bolt is located in the receiving groove.

[0014] Preferably, the diameter of the locking bolt is smaller than the width of the slot.

[0015] Preferably, a fixing ring is coaxially mounted on the side of the first rotating shaft, at least one guide rod is mounted on the side of the fixing ring, and at least one guide sleeve is mounted on the side of each clamping plate, with one end of the guide sleeve slidably sleeved on one end of the guide rod.

[0016] Preferably, when the strip mounting plate rotates with the second rotating shaft, there is a gap between the nozzle and the workpiece.

[0017] Preferably, a control cabinet is installed on the top of the base. The controller inside the control cabinet is connected to the linear drive module, the first drive motor and the second drive motor respectively through wires. An angle sensor is installed on the side of the second rotating shaft and is connected to the controller through wires.

[0018] Preferably, the rotation angle of the second rotating shaft is A, where 0°≤A≤180°.

[0019] Compared with the prior art, the present invention provides a rotary clamping mechanism for thermal spraying, which has the following advantages:

[0020] This utility model allows the second drive motor to drive the second rotating shaft to rotate, thereby adjusting the position of the two pairs of clamping plates. This allows the operator to load and unload the workpiece between one pair of clamping plates while spraying the workpiece between them, thus improving the efficiency of use.

[0021] This invention allows for the adjustment of the position of the sliding sleeve and the movement of the connecting sleeve by rotating the adjusting screw sleeve. This enables the adjustment of the clamping plate position according to the length of the workpiece, allowing for the clamping and fixing of workpieces of different sizes and improving the performance.

[0022] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of a rotary clamping mechanism for thermal spraying proposed in this utility model;

[0024] Figure 2 This is a schematic diagram of the second rotating shaft and clamping plate structure of a rotary clamping mechanism for thermal spraying proposed in this utility model;

[0025] Figure 3 This is a top sectional view of the first rotating shaft and connecting sleeve structure of a rotary clamping mechanism for thermal spraying proposed in this utility model;

[0026] Figure 4 This is a side view of a rotary clamping mechanism for thermal spraying proposed in this utility model;

[0027] Figure 5 This is a side sectional view of the second rotating shaft and sliding sleeve structure of a rotary clamping mechanism for thermal spraying proposed in this utility model.

[0028] In the diagram: 1. Base; 2. Guide rod; 3. Fixing seat; 4. Locking bolt; 5. Sliding sleeve; 6. Clamping plate; 7. Nozzle; 8. Mounting bracket; 9. Linear drive module; 10. Strip mounting plate; 11. Fixing ring; 12. First drive motor; 13. Receiving groove; 14. Second drive motor; 15. Threaded through hole; 16. First rotating shaft; 17. Adjusting screw sleeve; 18. Connecting sleeve; 19. Second rotating shaft; 20. Strip groove; 21. Limiting strip; 22. Guide sleeve; 23. Limiting groove; 24. Control cabinet; 25. Angle sensor. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0030] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] A rotary clamping mechanism for thermal spraying, such as Figures 1-5 As shown, it includes a base 1, and a control cabinet 24 is installed on the top of the base 1. The control cabinet 24 contains a controller, which is either a control motherboard or a PLC logic controller.

[0032] like Figure 1 and Figure 4 As shown, two fixed seats 3 are installed on the top of the base 1. The two fixed seats 3 are rotatably connected to a second rotating shaft 19 on their adjacent surfaces. One end of one of the second rotating shafts 19 is connected to a second drive motor 14. The second drive motor 14 is connected to the controller through a wire. The second drive motor 14 is fixed on the side of the fixed seat 3. The second drive motor 14 can drive the second rotating shaft 19 to rotate.

[0033] It should be noted that an angle sensor 25 is installed on the side of the second rotating shaft 19. The angle sensor 25 is connected to the controller through a wire, and the rotation angle of the second rotating shaft 19 is A, 0°≤A≤180°. The rotation angle of the second rotating shaft 19 can be detected by the angle sensor 25, so that the rotation angle of the second rotating shaft 19 is kept at the preset value.

[0034] like Figure 1 and Figure 2 As shown, each second rotating shaft 19 has a sliding sleeve 5 slidably fitted on its side. A strip mounting plate 10 is installed at one end of each sliding sleeve 5. By moving the sliding sleeve 5 along the second rotating shaft 19, the distance between the two strip mounting plates 10 can be adjusted, thereby clamping and fixing workpieces of different lengths.

[0035] like Figure 2 and Figure 5As shown, the sliding sleeve 5 is connected to the second rotating shaft 19 by a locking mechanism. The locking mechanism includes several threaded through holes 15 opened on one side of the sliding sleeve 5. Each threaded through hole 15 is provided with a locking bolt 4. A strip groove 20 is opened on the side of the second rotating shaft 19. One end of each locking bolt 4 extends into the strip groove 20 and abuts against the inner wall of the strip groove 20. The diameter of the locking bolt 4 is smaller than the width of the strip groove 20. In actual use, by tightening the locking bolt 4, the locking bolt 4 can be tightly pressed against the inner wall of the strip groove 20, fixing the sliding sleeve 5 and the second rotating shaft 19 together, thus completing the fixing of the strip mounting plate 10.

[0036] like Figure 2 and Figure 5 As shown, a plurality of receiving grooves 13 are provided on one side of the sliding sleeve 5. The receiving grooves 13 are coaxially arranged with the corresponding threaded through holes 15 and are connected to each other. When the locking bolt 4 is tightened, one end of the locking bolt 4 is located in the receiving groove 13. The end of the locking bolt 4 can be stored in the receiving groove 13 to prevent the locking bolt 4 from hindering the rotation of the second rotating shaft 19.

[0037] like Figure 2 and Figure 4 As shown, two adjacent surfaces of the two strip mounting plates 10 are rotatably connected to a first rotating shaft 16. One end of each first rotating shaft 16 is slidably fitted with a connecting sleeve 18, and one end of each connecting sleeve 18 is fitted with a clamping plate 6. A workpiece is placed between the two corresponding clamping plates 6. One end of each of the two first rotating shafts 16 on one side is connected to a first drive motor 12. The first drive motor 12 is fixed on the side of the strip mounting plate 10. The first drive motor 12 is connected to the controller through wires. In actual use, the workpiece can be clamped and fixed by the clamping plate 6, and the first drive motor 12 can drive the first rotating shaft 16 to rotate, thereby driving the clamping plate 6 to rotate, so that the workpiece follows the clamping plate 6 to rotate. In this way, the spray nozzle 7 will spray the workpiece surface evenly during the spraying process.

[0038] like Figure 3 As shown, one end of the sliding sleeve 5 is rotatably connected to an adjusting screw sleeve 17. The adjusting screw sleeve 17 is fitted on the side of the first rotating shaft 16 and threadedly connected to the first rotating shaft 16. The inner surface of the connecting sleeve 18 is connected to the first rotating shaft 16 through a limiting mechanism. In actual use, by rotating the adjusting screw sleeve 17, the connecting sleeve 18 can be moved along the first rotating shaft 16 under the action of the first rotating shaft 16, thereby adjusting the position of the clamping plate 6 so that the clamping plate 6 is tightly pressed against the surface of the workpiece to clamp and fix the workpiece.

[0039] like Figure 3As shown, the limiting mechanism includes several limiting strips 21 fixed on the inner side wall of the connecting sleeve 18. Several limiting grooves 23 are opened on the side of each first rotating shaft 16. One side of each limiting strip 21 extends into the limiting groove 23. In actual use, the connecting sleeve 18 can be limited by the cooperation of the limiting strips 21 and the limiting grooves 23, so as to prevent the connecting sleeve 18 from rotating relative to the first rotating shaft 16.

[0040] like Figure 1 and Figure 4 As shown, a linear drive module 9 is connected to the top side of the base 1 via a rail. The linear drive module 9 is connected to the controller via a guide. A mounting bracket 8 is installed on the top of the linear drive module 9. The mounting bracket 8 is L-shaped and a nozzle 7 is installed on the top of the mounting bracket 8. The nozzle of the nozzle 7 is located above one of the pairs of clamping plates 6. When the workpiece held and fixed by the clamping plates 6 moves to below the nozzle 7, high-temperature coating can be sprayed onto the surface of the workpiece through the nozzle 7 to complete the coating process.

[0041] It should be noted that when the strip mounting plate 10 rotates with the second rotating shaft 19, there is a gap between the nozzle 7 and the workpiece. This ensures that the workpiece fixed by the clamping plate 6 will not collide with the nozzle 7 when the position of the clamping plate 6 is adjusted.

[0042] like Figure 2 and Figure 3 As shown, a fixing ring 11 is coaxially mounted on the side of the first rotating shaft 16, and at least one guide rod 2 is mounted on the side of the fixing ring 11. At least one guide sleeve 22 is mounted on the side of each clamping plate 6. One end of the guide sleeve 22 is slidably sleeved on one end of the guide rod 2. Through the cooperation of the guide rod 2 and the guide sleeve 22, the clamping plate 6 can be limited, so that the clamping plate 6 remains stable.

[0043] In use, the operator first loosens the locking bolt 4, separating one end of the locking bolt 4 from the inner wall of the strip groove 20. Then, the operator pulls the sliding sleeve 5, causing it to move along the second rotating shaft 19. The sliding sleeve 5 moves the strip mounting plate 10, which in turn moves the clamping plate 6, thus adjusting the spacing between each pair of clamping plates 6 to a preset value. Next, the operator tightens the locking bolt 4, with one end abutting against the inner wall of the strip groove 20, fixing the sliding sleeve 5 in place. The operator then places the workpiece between one pair of clamping plates 6. Next, the operator rotates the adjusting screw sleeve 17, which, under the action of the first rotating shaft 16, moves the connecting sleeve 18 horizontally. The connecting sleeve 18 moves the clamping plate 6, causing it to press tightly against the surface of the workpiece, clamping and fixing it in place. This allows for the fixing of workpieces of different lengths. Then, the operator controls the second drive motor 14, which rotates the second rotating shaft 19, causing the strip mounting plate 10 to rotate 180°, thus adjusting the spacing between each pair of clamping plates 6. The clamping plate 6 holding the workpiece rotates to the side closer to the nozzle 7, so that the workpiece is located below the nozzle 7. Then, the workpiece surface can be sprayed through the nozzle 7. During the spraying process, the operator can place another workpiece between another pair of clamping plates 6 and rotate the corresponding adjusting sleeve 17 to move the clamping plate 6 and clamp the workpiece in place. After the previous workpiece is sprayed, the operator can control the second drive motor 14 to reverse. The second drive motor 14 drives the strip mounting plate 10 to reverse 180 degrees through the second rotating shaft 19, moving the sprayed workpiece out from under the nozzle 7. Then, the unsprayed workpiece is moved to under the nozzle 7 and sprayed through the nozzle 7. At the same time, the operator can rotate the adjusting sleeve 17 corresponding to the sprayed workpiece. The adjusting sleeve 17 drives the clamping plate 6 to move through the connecting sleeve 18, so that the side of the clamping plate 6 separates from the workpiece surface. This allows the sprayed workpiece to be removed, and then the unsprayed workpiece to be installed. This allows for loading and unloading during the spraying process, improving the usage effect.

[0044] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A rotary clamping mechanism for thermal spraying, comprising a base (1), characterized in that: The base (1) has two fixed seats (3) installed on its top. The two fixed seats (3) are rotatably connected to a second rotating shaft (19) on their adjacent surfaces. One end of one of the second rotating shafts (19) is connected to a second drive motor (14), which is fixed to the side of the fixed seat (3). Each of the second rotating shafts (19) has a sliding sleeve (5) on its side, and a strip mounting plate (10) is installed at one end of each sliding sleeve (5). The sliding sleeve (5) is connected to the second rotating shaft (19) by a locking mechanism. Two strip mounting plates (10) are rotatably connected to a first rotating shaft (16) at both ends of their adjacent surfaces. A connecting sleeve (18) is slidably fitted at one end of each first rotating shaft (16), and a clamping plate (6) is installed at one end of each connecting sleeve (18). A workpiece is provided between the two corresponding clamping plates (6). One end of the sliding sleeve (5) is rotatably connected to an adjusting screw sleeve (17). The adjusting screw sleeve (17) is fitted on the side of the first rotating shaft (16) and threadedly connected to the first rotating shaft (16). The inner surface of the connecting sleeve (18) is connected to the first rotating shaft (16) through a limiting mechanism. One end of each of the two first rotating shafts (16) on one side is connected to a first drive motor (12). The first drive motor (12) is fixed on the side of the strip mounting plate (10).

2. The rotary clamping mechanism for thermal spraying according to claim 1, characterized in that; A linear drive module (9) is connected to the top side of the base (1) via a rail. A mounting bracket (8) is installed on the top of the linear drive module (9). The mounting bracket (8) is L-shaped and a nozzle (7) is installed on the top of the mounting bracket (8). The nozzle (7) is located above the workpiece.

3. The rotary clamping mechanism for thermal spraying according to claim 1, characterized in that; The limiting mechanism includes several limiting strips (21) fixed on the inner side wall of the connecting sleeve (18). Several limiting grooves (23) are opened on the side of each of the first rotating shafts (16). One side of each limiting strip (21) extends into the limiting groove (23).

4. The rotary clamping mechanism for thermal spraying according to claim 1, characterized in that; The locking mechanism includes several threaded through holes (15) opened on one side of the sliding sleeve (5), each of which is provided with a locking bolt (4), and a strip groove (20) is opened on the side of the second rotating shaft (19). One end of each locking bolt (4) extends into the strip groove (20) and abuts against the inner wall of the strip groove (20).

5. A rotary clamping mechanism for thermal spraying according to claim 4, characterized in that; The sliding sleeve (5) has several receiving grooves (13) on one side. The receiving grooves (13) are coaxially arranged with the corresponding threaded through holes (15) and are connected to each other. When the locking bolt (4) is tightened, one end of the locking bolt (4) is located in the receiving groove (13).

6. A rotary clamping mechanism for thermal spraying according to claim 1, characterized in that... ； The diameter of the locking bolt (4) is smaller than the width of the groove (20).

7. The rotary clamping mechanism for thermal spraying according to claim 1, characterized in that; A fixing ring (11) is coaxially mounted on the side of the first rotating shaft (16). At least one guide rod (2) is mounted on the side of the fixing ring (11). At least one guide sleeve (22) is mounted on the side of each clamp (6). One end of the guide sleeve (22) is slidably sleeved on one end of the guide rod (2).

8. The rotary clamping mechanism for thermal spraying according to claim 1, characterized in that; When the strip mounting plate (10) rotates with the second rotating shaft (19), there is a gap between the nozzle (7) and the workpiece.

9. A rotary clamping mechanism for thermal spraying according to claim 1, characterized in that; A control cabinet is installed on the top of the base. The controller inside the control cabinet is connected to the linear drive module (9), the first drive motor (12) and the second drive motor (14) respectively through wires. An angle sensor (25) is installed on the side of the second rotating shaft (19). The angle sensor (25) is connected to the controller through wires.

10. A rotary clamping mechanism for thermal spraying according to claim 9, characterized in that... ； The rotation angle of the second rotating shaft (19) is A, 0°≤A≤180°.

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