Piston shell casting sand mold strength detection device

Abstract

The utility model discloses a piston shell casting sand mold strength detection device which comprises a damage storage cavity, mounting seats are mounted on the two sides of the top end of the damage storage cavity, rotating wheels are rotationally connected into the mounting seats, one ends of the rotating wheels are connected with a connecting frame, and the other ends of the rotating wheels are connected with the connecting frame. According to the sand mold strength detection device, in the using process, the placing plate is used as a bearing body for sand mold strength detection, after a detected sand mold at the top end of the placing plate is abraded, the sand mold strength detection device can be used for detecting the strength of the sand mold, and therefore the sand mold strength detection device can be used for detecting the strength of the sand mold. Through overturning of the placing plate, the damaged sand mold falls into the damaged storage cavity due to inertia and is stored in the top end of the storage drawer, and meanwhile, the two ends of the placing plate are provided with insertion cavities capable of moving relatively, so that the insertion cavities move relatively, and wrapping balloons are matched with silica gel non-slip mats to wrap the two ends of the sand mold; and rapid limiting and fixing can be realized.

Description

Technical Field

[0001] This utility model relates to the field of piston housing casting technology, specifically a piston housing casting sand mold strength testing device. Background Technology

[0002] Piston housing casting is a crucial process in piston manufacturing. Materials are selected based on the piston's application and performance requirements. A sand mold is then created, and sand is mixed with a binder to form a cavity that holds the molten metal. A metal mold replaces the sand mold, and finally, the molten metal is pressed into the mold cavity at high pressure and speed. This process can produce piston housings with complex shapes and precise dimensions, offering high efficiency, but also high equipment costs. It is suitable for pistons with extremely high precision and quality requirements, such as high-end aero-engine pistons.

[0003] In the existing technology, the strength testing device for piston housing casting sand mold may break due to excessive strength during the sand mold testing process. This makes it difficult for traditional strength testing devices to process the broken sand mold, resulting in difficulties in subsequent processing. Utility Model Content

[0004] The purpose of this invention is to provide a strength testing device for piston housing casting sand molds, in order to solve the problem mentioned in the background art that the sand mold may break due to excessive strength during the sand mold testing process, making it difficult for traditional strength testing devices to process the broken sand molds, resulting in difficulties in subsequent processing.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a piston housing casting sand mold strength testing device, comprising a damaged storage cavity, mounting seats installed on both sides of the top of the damaged storage cavity, and rotating wheels rotatably connected inside the mounting seats, one end of each rotating wheel being connected to a connecting frame, and the connecting frame being symmetrically installed on the outer walls of both sides of a placement plate, two movable sleeves being fitted on the outer walls of the placement plate, and insertion cavities being installed at both ends of the two movable sleeves, and wrapping balloons being installed inside the insertion cavities, with silicone anti-slip pads installed on the inner side walls of the wrapping balloons, and a second motor being installed on one side of the outer wall of one of the mounting seats, the output end of the second motor passing through the corresponding mounting seat and extending into the interior of the mounting seat to connect with one end of the rotating wheel.

[0006] Preferably, a storage drawer is movably connected to the front end of the damaged storage cavity, and guide sliders are installed on both outer walls of the storage drawer. The guide sliders are movably connected to the inside of the guide grooves, and the guide grooves are symmetrically opened on both inner walls of the damaged storage cavity.

[0007] Preferably, connecting plates are installed on the inner walls of both sides of the movable sleeve, and the other end of the connecting plate extends into the interior of the placement plate and is connected to the outer wall of the transmission screw sleeve.

[0008] Preferably, the inner sidewalls of the transmission screw sleeve are all connected to connecting screws through and meshing, and the connecting screws are fixedly connected to each other, and the teeth on the outer sidewalls of the connecting screws on both sides are arranged in opposite structures.

[0009] Preferably, a rotating wheel is installed at the end of the connecting screw on both sides away from the linkage rod. The rotating wheel is rotatably connected inside the rotating cavity. The rotating cavity is symmetrically opened on both sides inside the damaged storage cavity. One of the rotating wheels is connected to one end of the first bevel gear outside the placement plate via an extension rod. The top outer wall of the first bevel gear is meshed with a second bevel gear. The top of the second bevel gear is connected to the output end of the first motor.

[0010] Preferably, a transverse transmission assembly is installed on the rear end surface of the damaged storage cavity, and a top plate is installed at the top of the output end of the transverse transmission assembly. A cylinder is installed at the top of the top plate, and the output end of the cylinder passes through the top of the top plate and is connected to the top of the pressure sensor.

[0011] Preferably, the pressure sensor has a mounting cavity at its detection end, and a strength testing stake is inserted into the top of the mounting cavity.

[0012] Preferably, the outer walls of both sides of the strength testing pile abut against the outer wall of the contact balloon, and the contact balloon is wrapped around the outer wall of the contact roller. The contact roller is rotatably connected inside the connecting frame. The connecting frame is symmetrically installed on the inner walls of both sides of the mounting cavity. Damping bearings are installed at both ends of the connecting frame, and the inner wall of the damping bearing is connected to one end of the contact roller through a connecting rod.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. In use, the present invention uses a placement plate as a carrier for testing the strength of sand molds. After the sand mold tested at the top of the placement plate wears down, the placement plate is flipped over, and the broken sand mold falls into the broken storage cavity due to inertia and is stored inside the top of the storage drawer. At the same time, both ends of the placement plate are provided with relatively movable insertion cavities. This allows the insertion cavities to move relative to each other, so that the wrapping balloon, together with the silicone anti-slip pad, wraps around both ends of the sand mold, which can achieve quick positioning and fixation.

[0015] 2. In use, the strength testing piles for sand mold testing can be quickly inserted into the installation cavity of different sizes. The contact ball and contact roller can limit the contact of different strength testing piles. Because the strength testing piles can be quickly assembled and disassembled, different strength testing piles can be used quickly in the sand mold testing process, thus improving the practicality of the device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the combined component structure of the damaged storage cavity, guide groove, guide slider and storage drawer in this utility model;

[0019] Figure 4 This is a schematic diagram of the combined parts structure of the placement plate, movable sleeve, insertion cavity, enclosing balloon and silicone anti-slip pad in this utility model;

[0020] Figure 5 This is a schematic diagram of the combined parts of the moving sleeve, insertion cavity, connecting plate, transmission screw sleeve, connecting screw, linkage rod and rotating wheel in this utility model.

[0021] Figure 6 This is a schematic diagram of the internal structure of the mounting cavity in this utility model.

[0022] In the diagram: 1. Damaged storage cavity; 2. Guide groove; 3. Guide slider; 4. Storage drawer; 5. Mounting base; 6. Rotating wheel; 7. Connecting frame; 8. Placement plate; 9. Movable sleeve; 10. Insertion cavity; 11. Encasing balloon; 12. Silicone anti-slip pad; 13. Connecting plate; 14. Transmission screw sleeve; 15. Connecting screw; 16. Linkage rod; 17. Rotating wheel; 18. First bevel gear; 19. Second bevel gear; 20. First motor; 21. Second motor; 22. Lateral transmission assembly; 23. Top plate; 24. Cylinder; 25. Pressure sensor; 26. Mounting cavity; 27. Strength testing pile; 28. Contact balloon; 29. ​​Contact roller; 30. Connecting frame; 31. Damping bearing; 32. Connecting plate; 33. Electromagnetic block. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0024] Example 1

[0025] Please see Figure 1-6This utility model provides a piston housing casting sand mold strength testing device, including a broken storage cavity 1. Both sides of the inner wall of the broken storage cavity 1 are provided with guide grooves 2 with an inner sidewall of "convex" shape. The guide grooves 2 are slidably connected with guide sliders 3 with "convex" shape inside. The guide sliders 3 are symmetrically fixedly connected to the storage drawer 4 for storing broken sand molds.

[0026] With the storage drawer 4 positioned at the bottom of the damaged storage cavity 1, the storage drawer 4 can store the sand molds damaged during strength testing, allowing for centralized processing.

[0027] The top of the damaged storage cavity 1 is provided with a placement plate 8, and the outer walls of both sides of the placement plate 8 are fixedly connected with a connecting frame 7 with a concave structure. A rotating wheel 6 is fixedly connected to one side of the connecting frame 7. The rotating wheel 6 is rotatably connected to the inside of the mounting base 5, and the mounting base 5 is symmetrically fixedly connected to both sides of the top of the damaged storage cavity 1. A second motor 21 is fixedly connected to one side of one of the mounting bases 5. The output end of the second motor 21 is fixedly connected to the corresponding side of the rotating wheel 6. A connecting disk 32 with a magnetic material structure is installed at the end of the other rotating wheel 6 away from the connecting frame 7. The bottom outer wall of the connecting disk 32 is in contact with the top interior of the electromagnetic block 33. The electromagnetic block 33 is a curved electromagnet structure.

[0028] With the placement plate 8 in place, the sand mold that needs to be tested for strength is placed on top of the placement plate 8 during use. During use, the placement plate 8 can be rotated by the rotating wheel 6 driven by the second motor 21, thereby flipping the placement plate 8. The broken sand mold falls into the broken storage cavity 1 due to inertia and is stored inside the top of the storage drawer 4. After flipping, the electromagnetic block 33 is energized and magnetically attracts the connecting plate 32, thereby magnetically limiting the connecting plate 32 and ensuring that the placement plate 8 is horizontal, thus making the placement plate 8 a carrier for sand mold strength testing.

[0029] The placement plate 8 has a hollow structure, and movable sleeves 9 are symmetrically fitted on the outer walls of the placement plate 8. Insertion cavities 10 are fixedly connected to the top and bottom of each movable sleeve 9, and a balloon 11 is fixedly connected to the corresponding end of each insertion cavity 10. Silicone anti-slip pads 12 are fixedly connected to the inner walls of each balloon 11. Connecting plates 13 are fixedly connected to the inner walls of both sides of the movable sleeve 9, and the corresponding ends of each connecting plate 13 are fixedly connected to the outer walls of the transmission screw sleeve 14. Connecting screws 15 are permeated and engaged through the inner walls of the transmission screw sleeve 14. Two corresponding connecting screws 15... A linkage rod 16 is fixedly connected between the two connecting screws 15. Rotating wheels 17 are fixedly connected to opposite ends of the two connecting screws 15. The rotating wheels 17 are rotatably connected inside the rotating cavity, which is symmetrically opened on both sides of the inside of the placement plate 8. One end of one rotating wheel 17 is fixedly connected to an extension rod, and the other end of the extension rod is fixedly connected to one end of the first bevel gear 18. The top end of the first bevel gear 18 meshes with the outer wall of the second bevel gear 19. The top end of the second bevel gear 19 is connected to the output end of the first motor 20. The teeth on the outer walls of the connecting screws 15 on both sides are arranged with opposite structures.

[0030] The first motor 20 outputs power, which drives the second bevel gear 19 to rotate synchronously. The second bevel gear 19 drives the meshing first bevel gear 18 to rotate, which in turn drives the connecting screw 15 to rotate. Since the connecting screw 15 is fixedly connected to the connecting screw 15, both connecting screw 15 rotate. Since the outer walls of the connecting screw 15 are meshed with the transmission screw sleeve 14, and the teeth on the outer walls of the two connecting screw 15 are arranged in opposite structures, the transmission screw sleeve 14 moves relative to or opposite to each other. This causes the movable sleeve 9 to move relative to or opposite to each other, which in turn causes the insertion cavity 10 to move relative to and cooperate with the balloon 11 and the silicone anti-slip pad 12 to wrap around both ends of the sand mold, thereby quickly limiting and fixing the sand mold.

[0031] A transverse transmission assembly 22 is fixedly connected to the rear end of the damaged storage cavity 1, and an L-shaped top plate 23 is fixedly connected to the output end of the transverse transmission assembly 22. A cylinder 24 is fixedly connected to the top end of the top plate 23, and the output end of the cylinder 24 passes through the top end of the top plate 23 and is fixedly connected to the top end of the pressure sensor 25. An installation cavity 26 is fixedly connected to the detection end of the pressure sensor 25, and a strength testing pile 27 is fixedly connected inside the bottom end of the installation cavity 26.

[0032] The transverse transmission assembly 22 drives the top plate 23, pressure sensor 25, mounting cavity 26 and strength testing pile 27 to move laterally, and causes the cylinder 24 to output work, driving the pressure sensor 25, mounting cavity 26 and strength testing pile 27 to move vertically. At the same time, the bottom end of the strength testing pile 27 abuts against the sand mold surface, and the cylinder 24 outputs downward at a uniform speed. Meanwhile, the pressure sensor 25 acquires the generated pressure in real time, thereby obtaining the parameter data of sand mold strength testing based on the pressure change.

[0033] Both sides of the mounting cavity 26 are fixedly connected to the connecting frame 30, and both sides of the connecting frame 30 are fixedly connected to the damping bearing 31. The inner side wall of the damping bearing 31 is fixedly connected to the connecting rod, which passes through the connecting frame 30 and is fixedly connected to one end of the abutment roller 29 that is movably connected inside the connecting frame 30. The outer side wall of the abutment roller 29 is fixedly connected to the abutment balloon 28, and the outer side wall of the abutment balloon 28 abuts against the outer side wall of the strength testing pile 27.

[0034] The contact balloon 28, in conjunction with the contact roller 29, can contact the outer wall of the strength testing pile 27, thereby limiting and fixing the strength testing pile 27. This allows the strength testing pile 27 to be quickly installed and removed during use. At the same time, because the outer wall of the contact balloon 28 can be compressed, it can limit and fix strength testing piles 27 of different sizes, thus enabling the rapid installation of different strength testing piles 27 for sand mold testing.

[0035] The specific usage process in this embodiment is as follows:

[0036] First, place the sand mold to be tested on the top of the placement plate 8, so that the movable sleeve 9 moves relative to each other or oppositely, thereby allowing the insertion cavity 10 to move relative to each other to cooperate with the wrapping balloon 11 and the silicone anti-slip pad 12 to wrap around both ends of the sand mold, thereby quickly limiting and fixing the sand mold.

[0037] Secondly, the horizontal transmission assembly 22 drives the top plate 23, pressure sensor 25, mounting cavity 26 and strength testing pile 27 to move laterally, and causes the cylinder 24 to output work, driving the pressure sensor 25, mounting cavity 26 and strength testing pile 27 to move vertically. At the same time, the bottom end of the strength testing pile 27 abuts against the sand mold surface and outputs downward at a uniform speed to the cylinder 24. Meanwhile, the pressure sensor 25 acquires the generated pressure in real time, thereby obtaining the parameter data of sand mold strength testing according to the pressure change.

[0038] Subsequently, during use, the placement plate 8 can be rotated by the second motor 21 driving the rotating wheel 6, thereby causing the placement plate 8 to flip over. This causes the broken sand mold to fall into the broken storage cavity 1 due to inertia and be stored inside the top of the storage drawer 4. After flipping over, the electromagnetic block 33 is energized and magnetically attracts the connecting plate 32, thereby magnetically limiting the connecting plate 32 and ensuring that the placement plate 8 is horizontal.

[0039] Finally, since the storage drawer 4 is located at the bottom of the damaged storage cavity 1, the storage drawer 4 can store the sand mold that was damaged during the strength test, and then it can be centrally processed. In this way, the piston housing casting sand mold strength testing device is completed.

[0040] It should be noted that this utility model is a piston housing casting sand mold strength testing device. All components are general standard parts or parts known to those skilled in the art. Its structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. In the idle part of this device, all the above-mentioned electrical components, which refer to power components, electrical components, and the matching monitoring computer and power supply, are connected by wires. The specific connection method should refer to the working principle above and complete the electrical connection in the order of operation between each electrical component. The detailed connection method is a well-known technology in the field.

[0041] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A piston housing casting sand mold strength testing device, comprising a damage storage cavity (1), characterized in that: Mounting seats (5) are installed on both sides of the top of the damaged storage cavity (1), and rotating wheels (6) are rotatably connected inside the mounting seats (5). One end of each rotating wheel (6) is connected to a connecting frame (7), and the connecting frame (7) is symmetrically installed on the outer walls of both sides of the placement plate (8). Two movable sleeves (9) are fitted on the outer walls of the placement plate (8). Insertion cavities (10) are installed at both ends of the two movable sleeves (9), and wrapping balloons (11) are installed inside the insertion cavities (10). Silicone anti-slip pads (12) are installed on the inner side walls of the wrapping balloons (11). A second motor (21) is installed on one side of the outer wall of one of the mounting seats (5). The output end of the second motor (21) passes through the corresponding mounting seat (5) and extends into the interior of the mounting seat (5) to connect with one end of the rotating wheel (6).

2. The piston housing casting sand mold strength testing device according to claim 1, characterized in that: The front end of the damaged storage cavity (1) is movably connected to a storage drawer (4), and guide sliders (3) are installed on both outer walls of the storage drawer (4). The guide sliders (3) are movably connected to the inside of the guide groove (2), and the guide grooves (2) are symmetrically opened on both inner walls of the damaged storage cavity (1).

3. The piston housing casting sand mold strength testing device according to claim 1, characterized in that: Both sides of the movable sleeve (9) are equipped with connecting plates (13), and the other end of the connecting plate (13) extends into the interior of the placement plate (8) and is connected to the outer side of the transmission screw sleeve (14).

4. The piston housing casting sand mold strength testing device according to claim 3, characterized in that: The inner sidewall of the transmission screw sleeve (14) is connected to the connecting screw (15) through meshing, and the connecting screw (15) is fixedly connected to the linkage rod (16). The teeth on the outer sidewalls of the connecting screw (15) on both sides are arranged with opposite structures.

5. The piston housing casting sand mold strength testing device according to claim 4, characterized in that: A rotating wheel (17) is installed at the end of the connecting screw (15) on both sides away from the linkage rod (16). The rotating wheel (17) is rotatably connected inside the rotating cavity. The rotating cavity is symmetrically opened on both sides inside the damaged storage cavity (1). One of the rotating wheels (17) is connected to one end of the first bevel gear (18) outside the placement plate (8) through an extension rod. The top outer wall of the first bevel gear (18) is meshed with a second bevel gear (19). The top of the second bevel gear (19) is connected to the output end of the first motor (20).

6. The piston housing casting sand mold strength testing device according to claim 1, characterized in that: A transverse transmission assembly (22) is installed on the rear end surface of the damaged storage cavity (1), and a top plate (23) is installed at the top of the output end of the transverse transmission assembly (22). A cylinder (24) is installed at the top of the top plate (23), and the output end of the cylinder (24) passes through the top of the top plate (23) and is connected to the top of the pressure sensor (25).

7. The piston housing casting sand mold strength testing device according to claim 6, characterized in that: The pressure sensor (25) has a mounting cavity (26) installed at its detection end, and a strength testing pile (27) is inserted into the top of the mounting cavity (26).

8. The piston housing casting sand mold strength testing device according to claim 7, characterized in that: The outer walls of both sides of the strength testing pile (27) abut against the outer wall of the contact balloon (28), and the contact balloon (28) is wrapped around the outer wall of the contact roller (29). The contact roller (29) is rotatably connected to the inside of the connecting frame (30). The connecting frame (30) is symmetrically installed on the inner walls of both sides of the mounting cavity (26). Damping bearings (31) are installed at both ends of the connecting frame (30), and the inner wall of the damping bearing (31) is connected to one end of the contact roller (29) through a connecting rod.

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