A thermal barrier coating specimen clamp

Abstract

The utility model discloses a thermal barrier coating sample clamp relates to spraying clamp field, including turnover frame, two turnover frames all are provided with V type frame in, and the corner of V type frame is right angle, and two V type frames are symmetrically set up, and the top and bottom of V type frame all are fixed with the connecting block, and the connecting block is fixedly connected with the pin shaft, and the pin shaft is rotatably connected with the turnover frame. Advantageous effects lie in: two V type frames can be set up and are capable of simultaneously to square sample and circular sample steady clamping, need cylinder sample clamping, through the locking mechanism drive V type frame rotation, make two V type frame tip relative, then two V type frames are close to each other, and the tip of V type frame enters the inside of cylinder sample, thereby realizes steady clamping to cylinder sample, through setting up power mechanism can make V type frame drive cylinder sample rotation, therefore, the clamp can hold three kinds of samples, and the versatility is strong.

Description

Technical Field

[0001] This utility model relates to the field of spraying fixtures, and in particular to a thermal barrier coating sample fixture. Background Technology

[0002] Thermal barrier coating samples are the main carriers for optimizing thermal barrier coating spraying processes and evaluating coating performance in the laboratory. Using metal or alloy as the substrate, thermal barrier coatings are generated on these substrates by methods such as atmospheric plasma spraying or supersonic flame spraying. Then, based on the microstructure characterization, mechanical properties, thermal cycling, and thermal shock resistance tests of the barrier coating, the test results are analyzed to optimize the thermal barrier spraying process.

[0003] For example, patent document CN216422334U discloses a thermal barrier coating sample clamp. In specific implementation, the sample to be sprayed is placed between two clamping blocks, the motor is started, and gear A is driven to rotate. The rotation of gear A drives gear B and sleeve to rotate. The rotation of gear B drives the threaded rod to slide up and down. When the threaded rod moves upward, the limiting block squeezes the sliding block. Therefore, the sliding block slides to one side through the pulley. The sliding of the sliding block drives the clamping block to clamp the sample through the connecting rod.

[0004] However, thermal barrier spraying tests require the use of specimens of different shapes and sizes, such as square specimens, circular specimens, and cylindrical specimens. Furthermore, cylindrical specimens need to be rotated during spraying to ensure that the cylindrical surface is evenly coated. The aforementioned fixtures are mainly used to hold square specimens. If circular specimens are held, the clamping blocks can only make line contact with the side of the circular specimen, resulting in unstable clamping. If cylindrical specimens are held, the cylindrical specimens cannot be rotated. Therefore, the aforementioned fixtures have poor versatility. Utility Model Content

[0005] The purpose of this invention is to provide a thermal barrier coating sample holder in order to solve the above-mentioned problems.

[0006] This utility model achieves the above objectives through the following technical solutions:

[0007] A thermal barrier coating sample holder includes a base with a bidirectional translation mechanism. Two symmetrically arranged uprights are fixed on the bidirectional translation mechanism. The bidirectional translation mechanism drives the two uprights to move relative to each other. A flipping frame is rotatably mounted on the top of each upright. A V-shaped frame is set inside each flipping frame. The corners of the V-shaped frames are right angles. The two V-shaped frames are symmetrically arranged. A connecting block is fixed at the top and bottom of each V-shaped frame. A pin is fixedly connected to the connecting block and rotatably connected to the flipping frame. A baffle is fixedly connected to the inner side of the V-shaped frame. A locking mechanism for limiting the rotation of the pin is provided on the flipping frame. A power mechanism for driving the flipping frame to rotate is provided on the uprights.

[0008] Preferably, the flipping frame includes a U-shaped frame with the openings of the two U-shaped frames facing each other. A connecting seat is fixedly connected to one side of the U-shaped frame, and a rotating shaft is fixedly connected to one side of the connecting seat. The rotating shaft is rotatably connected to the upright plate, and a pin is rotatably connected to the top and bottom walls of the U-shaped frame.

[0009] Preferably, the locking mechanism includes a hexagonal prism, which is fixedly connected to the top of the upper pin. A sleeve is slidably fitted on the hexagonal prism. Positioning plates are fixedly connected to both sides of the sleeve. Limiting plates are provided on the front and rear sides of the positioning plates. The limiting plates are fixedly connected to the top of the U-shaped frame. A handle is fixedly connected to the top of the sleeve.

[0010] Preferably, the bottom end of the positioning plate is arc-shaped, and the top end of the limiting plate is set to an outwardly expanding arc shape.

[0011] Preferably, the power mechanism includes a first power shaft and a second power shaft, which are rotatably connected to two vertical plates respectively. The second power shaft is sleeved on the first power shaft, and a slide bar is fixedly connected to the first power shaft. A groove that mates with the slide bar is opened on the inner wall of the second power shaft. A synchronous belt assembly is provided on both the first and second power shafts. The two rotating shafts are connected to the first and second power shafts respectively through the synchronous belt assembly. A power motor is fixedly connected to one side of the vertical plate, and the output end of the power motor is fixedly connected to the first power shaft.

[0012] Preferably, the opposing surfaces of the two uprights are fixedly connected to brackets, and the first power shaft and the second power shaft are rotatably connected to the two brackets respectively.

[0013] Preferably, the bidirectional translation mechanism includes a translation motor, which is fixedly connected to one side of the base. A bidirectional lead screw is fixedly connected to the output end of the translation motor. A guide groove is provided on the top of the base. The bidirectional lead screw is rotatably connected in the guide groove. Two sliders are threadedly connected to the bidirectional lead screw. The sliders are slidably connected in the guide groove. A vertical plate is fixedly connected to the top of the sliders.

[0014] The beneficial effects are as follows: by setting two V-shaped frames, square and round specimens can be stably clamped at the same time. When a cylindrical specimen needs to be clamped, the locking mechanism drives the V-shaped frames to rotate, so that the tips of the two V-shaped frames face each other. Then the two V-shaped frames move closer to each other, and the tips of the V-shaped frames enter the interior of the cylindrical specimen, thereby achieving stable clamping of the cylindrical specimen. By setting a power mechanism, the V-shaped frames can drive the cylindrical specimen to rotate. Therefore, this fixture can clamp three types of specimens and has strong versatility.

[0015] The additional technical features and advantages of this utility model will become more apparent from the following description, or may be learned through specific practice of this utility model. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a perspective view of a thermal barrier coating sample fixture according to the present invention;

[0018] Figure 2 This is a front view of a thermal barrier coating sample holder according to the present invention;

[0019] Figure 3 This is a perspective view of the V-shaped frame of the thermal barrier coating sample holder described in this utility model;

[0020] Figure 4 This utility model describes a thermal barrier coating sample holder. Figure 1 Enlarged view of point A in the middle;

[0021] Figure 5 This is a front sectional view of the sleeve of the thermal barrier coating sample holder described in this utility model;

[0022] Figure 6 This is an enlarged view of section B in part 1 of the thermal barrier coating sample fixture described in this utility model;

[0023] Figure 7 This is a perspective view of the bidirectional translation mechanism of a thermal barrier coating sample holder according to the present invention.

[0024] The reference numerals in the attached drawings are explained as follows: 1. Base; 101. Guide groove; 2. Bidirectional translation mechanism; 201. Translation motor; 202. Bidirectional lead screw; 203. Slider; 3. Vertical plate; 4. Tilting frame; 401. U-shaped frame; 402. Connecting seat; 403. Rotating shaft; 5. V-shaped frame; 501. Connecting block; 502. Pin; 503. Baffle; 6. Locking mechanism; 601. Hexagonal prism; 602. Sleeve; 603. Positioning plate; 604. Limiting plate; 605. Handle; 7. Power mechanism; 701. First power shaft; 702. Second power shaft; 703. Slide bar; 704. Power motor; 705. Synchronous belt assembly; 706. Bracket. Detailed Implementation

[0025] 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.

[0026] 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.

[0027] The present invention will be further described below with reference to the accompanying drawings:

[0028] like Figures 1-7 As shown, a thermal barrier coating sample clamp includes a base 1, on which a bidirectional translation mechanism 2 is provided. Two symmetrically arranged upright plates 3 are fixed on the bidirectional translation mechanism 2. The bidirectional translation mechanism 2 is used to drive the two upright plates 3 to move relative to each other. A flipping frame 4 is rotatably mounted on the top of each of the two upright plates 3. A V-shaped frame 5 is provided inside each of the two flipping frames 4. The corners of the V-shaped frames 5 are right angles. The two V-shaped frames 5 are symmetrically arranged. When the openings of the two V-shaped frames 5 correspond, a square or round sample can be placed between the two V-shaped frames 5 for clamping. When clamping a square sample, the two opposite corners of the square sample are aligned with the corners of the V-shaped frames 5. Two V-shaped frames 5 can be brought close together to clamp square samples. Connecting blocks 501 are welded to the top and bottom of the V-shaped frames 5, and pins 502 are welded to the connecting blocks 501. The pins 502 are rotatably connected to the flipping frame 4. A baffle 503 is fixedly connected to the inner side of the V-shaped frame 5. When clamping round and square samples, the sample is placed directly against the baffle 503, and then the V-shaped frame 5 is used to clamp the sample. By setting the baffle 503, the sample can be easily placed in the correct position, making it more convenient to use. The flipping frame 4 is equipped with a locking mechanism 6 to limit the rotation of the pins 502, and the upright plate 3 is equipped with a power mechanism 7 to drive the flipping frame 4 to rotate.

[0029] The flipping frame 4 includes a U-shaped frame 401 with the openings of two U-shaped frames 401 facing each other. A connecting seat 402 is welded to one side of the U-shaped frame 401, and a rotating shaft 403 is fixedly connected to one side of the connecting seat 402. The rotating shaft 403 is rotatably connected to the upright plate 3. A pin 502 is rotatably connected to the top and bottom walls of the U-shaped frame 401. The V-shaped frame 5 can rotate within the U-shaped frame 401 along the axis of the pin 502, and the U-shaped frame 401 can drive the V-shaped frame 5 to rotate along the axis of the rotating shaft 403.

[0030] The locking mechanism 6 includes a hexagonal prism 601, which is fixedly connected to the top of the upper pin 502. A sleeve 602 is slidably fitted onto the hexagonal prism 601. The sleeve 602 can drive the hexagonal prism 601 to rotate and can move up and down on the hexagonal prism 601. Positioning plates 603 are welded to both sides of the sleeve 602. Limiting plates 604 are provided on the front and rear sides of the positioning plates 603. The limiting plates 604 are fixedly connected to the top of the U-shaped frame 401. The positioning plates 603 are inserted between the front and rear limiting plates 604, thereby restricting the rotation of the sleeve 602. A handle 605 is fixedly connected to the top of the sleeve 602. 5. Lift the sleeve 602 upwards. The sleeve 602 drives the positioning plate 603 to move upwards. When the positioning plate 603 is higher than the limiting plate 604, the hexagonal prism 601 can be rotated through the sleeve 602. The hexagonal prism 601 drives the pin 502 to rotate, thereby causing the V-frame 5 to rotate. After the V-frame 5 rotates 180°, press the sleeve 602 downwards so that the positioning plate 603 is inserted between the front and rear limiting plates 604 again, completing the limiting of the sleeve 602. After the V-frame 5 rotates, the open ends of the two V-frames 5 are opposite to each other and the tips are corresponding. At this time, place the cylindrical sample between the two V-frames 5. The cylindrical sample can be clamped by bringing the two V-frames 5 close together.

[0031] The bottom of the positioning plate 603 is arc-shaped, and the top of the limiting plate 604 is set to an outwardly expanding arc shape. This design makes it easier for the positioning plate 603 to be inserted downward between the front and rear limiting plates 604, making it more convenient to use.

[0032] The power mechanism 7 includes a first power shaft 701 and a second power shaft 702. The first power shaft 701 and the second power shaft 702 are rotatably connected to two vertical plates 3 via bearings. The second power shaft 702 is sleeved on the first power shaft 701. A slide bar 703 is fixedly connected to the first power shaft 701. A groove is formed on the inner wall of the second power shaft 702 to cooperate with the slide bar 703. This arrangement allows the first power shaft 701 and the second power shaft 702 to slide relative to each other and rotate synchronously. Both the first power shaft 701 and the second power shaft 702 are provided with a synchronous belt assembly 705. The two rotating shafts 403 are respectively connected to the first power shaft 701 via the synchronous belt assembly 705. 1. The first power shaft 701 and the second power shaft 702 are connected. The opposing surfaces of the two upright plates 3 are fixedly connected to the brackets 706. The first power shaft 701 and the second power shaft 702 are rotatably connected to the two brackets 706 through bearings. The brackets 706 provide stable support for the first power shaft 701 and the second power shaft 702. A power motor 704 is bolted to one side of the upright plate 3. The output end of the power motor 704 is fixedly connected to the first power shaft 701. Of course, the power motor 704 can be installed on another upright plate 3, and the output shaft of the power motor 704 can be fixedly connected to the second power shaft 702. This can be decided according to the actual situation, and no specific limitation is given here.

[0033] The bidirectional translation mechanism 2 includes a translation motor 201, which is bolted to one side of the base 1. A bidirectional lead screw 202 is fixedly connected to the output end of the translation motor 201. A guide groove 101 is provided on the top of the base 1. The bidirectional lead screw 202 is rotatably connected in the guide groove 101. Two sliders 203 are threadedly connected to the bidirectional lead screw 202. The sliders 203 are slidably connected in the guide groove 101. The upright plate 3 is fixedly connected to the top of the sliders 203.

[0034] Working principle: When clamping square or round samples, the open ends of the two V-shaped frames 5 correspond to each other. The sample is placed between the two V-shaped frames 5, and the rear wall of the sample is pressed against the baffle 503. The translation motor 201 drives the bidirectional lead screw 202 to rotate. The bidirectional lead screw 202 drives the two sliders 203 to move closer to each other. The sliders 203 drive the upright plates 3 to move closer to each other. The upright plates 3 drive the flipping frame 4 to move closer to each other, thereby bringing the two V-shaped frames 5 closer together and clamping the sample. During the process of the two upright plates 3 moving closer together, the first power shaft 701 and the second power shaft 702 slide relative to each other in the axial direction. The slide bar 703 ensures that the first power shaft 701 and the second power shaft 702 can always transmit power between them. When it is necessary to clamp a cylindrical sample, the handle 605 is used to lift the sleeve 602 upward. The sleeve 602 drives the positioning plate 603 to move upward. When the positioning plate 603 is higher than the limit plate 604, the sleeve 602 can pass through. 02. Rotate the hexagonal prism 601, which drives the pin 502 to rotate, thereby rotating the V-frame 5 by 180°. At this time, the tips of the two V-frames 5 correspond to each other. Press the sleeve 602 down, so that the positioning plate 603 is inserted between the front and rear limiting plates 604 again, completing the limitation of the sleeve 602. The sleeve 602 cannot rotate, which ensures that the V-frame 5 will not rotate. At this time, place the cylindrical sample between the two V-frames 5. The two V-frames 5 are close together, so that the tips of the V-frames 5 enter the interior of the cylindrical sample. The cylindrical sample is clamped by the two right-angled sides of the V-frames 5. The first power shaft 701 and the second power shaft 702 are driven to rotate by the power motor 704. The first power shaft 701 and the second power shaft 702 drive the two rotating shafts 403 to rotate synchronously through the synchronous belt assembly 705, so that the two U-frames 401 rotate. The U-frames 401 drive the V-frames 5 to rotate, thereby rotating the cylindrical sample.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A thermal barrier coating sample holder, comprising a base (1), characterized in that: The base (1) is provided with a bidirectional translation mechanism (2), and two upright plates (3) are fixed on the bidirectional translation mechanism (2) and arranged symmetrically on the left and right. The bidirectional translation mechanism (2) is used to drive the two upright plates (3) to move relative to each other. A flipping frame (4) is rotatably installed on the top of each of the two upright plates (3). A V-shaped frame (5) is provided inside each of the two flipping frames (4). The corner of the V-shaped frame (5) is a right angle. The two V-shaped frames (5) are arranged symmetrically on the left and right. A connecting block (501) is fixed at the top and bottom of the V-shaped frame (5). A pin (502) is fixedly connected to the connecting block (501). The pin (502) is rotatably connected to the flipping frame (4). A baffle (503) is fixedly connected to the inner side of the V-shaped frame (5). A locking mechanism (6) is provided on the flipping frame (4) to restrict the rotation of the pin (502). A power mechanism (7) is provided on the upright plate (3) to drive the flipping frame (4) to rotate.

2. The thermal barrier coating sample fixture according to claim 1, characterized in that: The flipping frame (4) includes a U-shaped frame (401), with the openings of the two U-shaped frames (401) facing each other. A connecting seat (402) is fixedly connected to one side of the U-shaped frame (401), and a rotating shaft (403) is fixedly connected to one side of the connecting seat (402). The rotating shaft (403) is rotatably connected to the upright plate (3), and the pin (502) is rotatably connected to the top and bottom walls of the U-shaped frame (401).

3. A thermal barrier coating sample fixture according to claim 2, characterized in that: The locking mechanism (6) includes a hexagonal prism (601), which is fixedly connected to the top of the pin (502) above. A sleeve (602) is slidably sleeved on the hexagonal prism (601). Positioning plates (603) are fixedly connected to both sides of the sleeve (602). Limiting plates (604) are provided on the front and rear sides of the positioning plates (603). The limiting plates (604) are fixedly connected to the top of the U-shaped frame (401). A handle (605) is fixedly connected to the top of the sleeve (602).

4. A thermal barrier coating sample fixture according to claim 3, characterized in that: The bottom end of the positioning plate (603) is arc-shaped, and the top end of the limiting plate (604) is set to an outwardly expanding arc shape.

5. A thermal barrier coating sample fixture according to claim 2, characterized in that: The power mechanism (7) includes a first power shaft (701) and a second power shaft (702). The first power shaft (701) and the second power shaft (702) are rotatably connected to the two upright plates (3). The second power shaft (702) is sleeved on the first power shaft (701). A slide bar (703) is fixedly connected to the first power shaft (701). A groove that cooperates with the slide bar (703) is opened on the inner wall of the second power shaft (702). A synchronous belt assembly (705) is provided on both the first power shaft (701) and the second power shaft (702). The two rotating shafts (403) are connected to the first power shaft (701) and the second power shaft (702) respectively through the synchronous belt assembly (705). A power motor (704) is fixedly connected to one side of the upright plate (3). The output end of the power motor (704) is fixedly connected to the first power shaft (701).

6. A thermal barrier coating sample holder according to claim 5, characterized in that: The opposing surfaces of the two upright plates (3) are fixedly connected with brackets (706), and the first power shaft (701) and the second power shaft (702) are rotatably connected to the two brackets (706) respectively.

7. A thermal barrier coating sample holder according to claim 1, characterized in that: The bidirectional translation mechanism (2) includes a translation motor (201), which is fixedly connected to one side of the base (1). The output end of the translation motor (201) is fixedly connected to a bidirectional lead screw (202). A guide groove (101) is provided on the top of the base (1). The bidirectional lead screw (202) is rotatably connected in the guide groove (101). Two sliders (203) are threadedly connected to the bidirectional lead screw (202). The sliders (203) are slidably connected in the guide groove (101). The upright plate (3) is fixedly connected to the top of the sliders (203).

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