A cast iron piece air tightness detection device

Abstract

The utility model relates to preserved egg processing technical field discloses a cast iron piece air tightness detection device, including guide rail, the inner wall far end of guide rail is seted up slide rail no.

Description

Technical Field

[0001] This utility model relates to the field of airtightness testing technology, and in particular to an airtightness testing device for cast iron parts. Background Technology

[0002] Cast iron parts are widely used in automobiles, such as engine blocks, cylinder heads, gearbox housings, fluid transfer valves, pump housings, pipe fittings, and hydraulic structures, due to their good casting performance and cost-effectiveness. However, the casting process is prone to defects. These critical components must be strictly protected against gas or liquid leakage to ensure safe operation, reliable function, compliance with environmental regulations, and avoid product failure and recall. Therefore, efficient and accurate airtightness testing technology is crucial.

[0003] The market demand for cast iron parts is increasing, but substandard cast iron parts always appear. To meet production requirements, airtightness testing devices for cast iron parts have been invented. Currently, the most common methods for airtightness testing of cast iron parts are the immersion observation method and the testing device based on the principle of air pressure change. Operators usually need to fix the cast iron part in the testing fixture, fill it with gas at a certain pressure, and then either immerse the entire part in water to observe the generation of bubbles, or use instruments to monitor the drop in air pressure over a period of time to determine whether there is a leak. However, the testing process often requires manual operation, which reduces testing efficiency and practicality. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a device for testing the air tightness of cast iron parts, aiming to improve the problems of cumbersome operation and operational safety in the existing technology.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a casting iron airtightness testing device, comprising a guide rail, a slide rail one provided at the far end of the inner wall of the guide rail, an inclined rail two provided at the bottom left side of the inner wall of the slide rail one, a rear wheel slidably connected to the inner wall of the slide rail one, a support frame rotatably connected between adjacent rear wheels, a motor fixedly connected to the bottom of the support frame, a front wheel fixedly connected to the output end of the motor, a slide rail two provided at the near end of the inner wall of the guide rail, an inclined rail one provided at the middle of the bottom surface of the inner wall of the slide rail two, a mold plate one provided at the top of the support frame, the bottom of the mold plate one fitting against the top of the support frame, a baffle three fixedly connected to the right side of the mold plate one, a base plate fixedly connected to the bottom of the guide rail, a load-bearing block fixedly connected to the top left side of the base plate, and a leveling mechanism fixedly connected to the bottom of the base plate for leveling the device.

[0006] As a further description of the above technical solution:

[0007] The leveling mechanism includes a connecting block, a base plate fixedly connected to the top of the connecting block, a rack fixedly connected to the bottom of the connecting block, a lifting support fixedly connected to the bottom of the connecting block, a housing fixedly connected to the bottom of the lifting support, a rotating shaft rotatably connected to the inner wall of the housing, a gear fixedly connected to the middle of the outer wall of the rotating shaft, turntables fixedly connected to the opposite ends of multiple rotating shafts, a hand crank fixedly connected to the outer wall of the turntables, a slide rail three provided on the outer wall of the housing, a sliding lock slidably connected to the outer wall of the slide rail three, and a fixing pin slidably connected to the inner right side of the housing.

[0008] As a further description of the above technical solution:

[0009] An air inlet is provided on the top left side of the mold plate, and an air inlet valve is connected to the inner wall of the air inlet. An air outlet is provided on the top right side of the mold plate, and an air outlet valve is connected to the inner wall of the air outlet.

[0010] As a further description of the above technical solution:

[0011] The bottom of the outer casing is fixedly connected to a support leg pad, and the outer wall of the hand crank is slidably connected to a rubber sleeve.

[0012] As a further description of the above technical solution:

[0013] Multiple support columns are fixedly connected to the top of the base plate near the edge. A stamping machine is fixedly connected to the top of the support columns. A mold plate is fixedly connected to the bottom of the stamping machine. A spring is fixedly connected to the top of the mold plate. A rubber head is fixedly connected to the bottom of the mold plate. A stamping machine is fixedly connected to the middle of the outer wall of the multiple support columns at their near ends. A mold plate is fixedly connected to the far end of the stamping machine.

[0014] As a further description of the above technical solution:

[0015] A baffle is fixedly connected to the right side of the guide rail, and a control box is fixedly connected to the right side of the baffle. An electrical box is fixedly connected to the far left part of the top of the base plate.

[0016] As a further description of the above technical solution:

[0017] A rubber ring is fixed to the outer side of the top of the mold plate one, and fixing pins two are fixedly connected to the four corners of the top of the mold plate one.

[0018] As a further description of the above technical solution:

[0019] A baffle 2 is fixedly connected to the left side of the guide rail. An air duct is slidably connected to the inner left side of the baffle 2 (28). An air compressor is connected to the bottom of the air duct.

[0020] This utility model has the following beneficial effects:

[0021] In this invention, the mold is placed on mold plate one and engaged with the positioning pin. Pressing the button starts the motor, and the support frame moves to the left. After the front and rear wheels reach a certain position, they slide into inclined rails one and two, causing mold plate one to descend horizontally and be placed on the load-bearing block. Pressing the button again starts stamping by stamping machine one and stamping machine two, sealing the mold. After the inspection is completed, pressing the button again causes stamping machine one and stamping machine two to return to their original positions. The motor starts, and the support frame moves to the right. After the front and rear wheels reach a certain position, they rise into inclined rails one and two, and the top right side of the support frame presses against baffle three, causing mold plate one to move to the right until it returns to its original position.

[0022] In this utility model, by pulling up the sliding lock, the fixing pin is pulled out. By turning the hand crank, the gear is driven to rotate through the rotating shaft. The gear meshes with the rack and pinion, and the rack drives the connecting block to move up and down to adjust the height of the support leg. The fixing pin is then inserted back in, and the sliding lock is pulled down to lock the fixing pin. After the multiple leveling mechanisms are adjusted, the control panel remains level. Attached Figure Description

[0023] Figure 1 This is a front view of a casting iron parts airtightness testing device proposed in this utility model;

[0024] Figure 2 This is a side view of a device for testing the air tightness of cast iron parts according to the present invention;

[0025] Figure 3 This is a side view of a device for testing the air tightness of cast iron parts according to the present invention;

[0026] Figure 4 for Figure 3 Enlarged view of the local structure at point A;

[0027] Figure 5 This is a partial structural diagram of a cast iron parts airtightness testing device proposed in this utility model;

[0028] Figure 6 This is a cross-sectional view of a casting iron part airtightness testing device proposed in this utility model;

[0029] Figure 7 This is a partial structural diagram of a casting iron parts airtightness testing device proposed in this utility model;

[0030] Figure 8 This is a partial structural schematic diagram of a cast iron part airtightness testing device proposed in this utility model.

[0031] Legend:

[0032] 1. Guide rail; 2. Leveling mechanism; 201. Slide rail three; 202. Lifting support; 203. Sliding lock; 204. Fixing pin one; 205. Rack; 206. Gear; 207. Turntable; 208. Hand crank; 209. Connecting block; 210. Rotating shaft; 211. Housing; 212. Rubber sleeve; 3. Outrigger pads; 4. Mold plate one; 5. Mold plate two; 6. Press one; 7. Air duct; 8. Air compressor; 9. Rubber head; 10. Electrical box; 11. Rubber... 12. Rubber ring; 13. Fixing pin 2; 14. Spring; 15. Mold plate 3; 16. Stamping machine 2; 17. Air inlet; 18. Air outlet; 19. Control box; 20. Motor; 21. Front wheel; 22. Rear wheel; 23. Air inlet valve; 24. Air outlet valve; 25. Inclined rail 1; 26. Inclined rail 2; 27. Baffle 1; 28. Base plate; 29. ​​Baffle 2; 30. Support frame; 31. Slide rail 1; 32. Slide rail 2; 33. Load-bearing block; 34. Support column; 35. Baffle 3. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Please see the appendix Figure 1 Appendix Figure 7 and attached Figure 8 In one embodiment of this utility model: a slide rail 30 is provided at the far end of the inner wall of the guide rail 1; a sloping rail 25 is provided on the left side of the bottom of the inner wall of the slide rail 30; a rear wheel 21 is slidably connected to the inner wall of the slide rail 30; a support frame 29 is rotatably connected between adjacent rear wheels 21; a motor 19 is fixedly connected to the bottom of the support frame 29; a front wheel 20 is fixedly connected to the output end of the motor 19; and a slide rail 31 is provided at the near end of the inner wall of the guide rail 1. The inner wall bottom surface of the slide rail 21 is provided with a sloping rail 24. The top of the support frame 29 is provided with a mold plate 4. The bottom of the mold plate 4 is in contact with the top of the support frame 29. The right side of the mold plate 4 is fixedly connected with a baffle 34. The bottom of the guide rail 1 is fixedly connected with a base plate 27. The top left side of the base plate 27 is fixedly connected with a load-bearing block 32. The bottom of the base plate 27 is fixedly connected with a leveling mechanism 2. The leveling mechanism 2 is used to level the device horizontally.

[0035] Specifically, a slide rail 30 is provided at the far end of the inner wall of the guide rail 1, extending along the length of the guide rail 1. A second inclined rail 25 with a certain inclination angle is provided on the bottom left side of the inner wall of the slide rail 30. A rear wheel 21 is slidably connected to the inner wall of the slide rail 30, allowing it to slide along the inner wall. A support frame 29 is rotatably connected between adjacent rear wheels 21, allowing the support frame 29 to rotate relative to the rear wheels 21. A motor 19, serving as the power source, is fixedly connected to the bottom of the support frame 29. A front wheel 20 is fixedly connected to the output end of the motor 19, driving the front wheel 20 to rotate. A second slide rail 31 is provided at the near end of the inner wall of the guide rail 1, with a first inclined rail 24 with an inclination angle located in the middle of the bottom surface of the inner wall of the second slide rail 31. A mold plate 4, which is a working component, is placed on top of the support frame 29. The bottom of the mold plate 4 is in contact with the top of the support frame 29, and the two achieve positioning and force transmission through this contact surface. A baffle 34 is fixedly connected to the right side of the mold plate 4, and a base plate 27 is fixedly connected to the bottom of the guide rail 1, forming the mounting base of the entire device. A load-bearing block 32 is fixedly connected to the top left side of the base plate 27 to increase local rigidity. A leveling mechanism 2 is fixedly connected to the bottom of the base plate 27 to level the entire device and ensure working accuracy.

[0036] Please see the appendix Figure 2 Appendix Figure 5 and attached Figure 6 The leveling mechanism 2 includes a connecting block 209, a base plate 27 fixedly connected to the top of the connecting block 209, a rack 205 fixedly connected to the bottom of the connecting block 209, a lifting support column 202 fixedly connected to the bottom of the connecting block 209, a housing 211 fixedly connected to the bottom of the lifting support column 202, a rotating shaft 210 rotatably connected to the inner wall of the housing 211, a gear 206 fixedly connected to the middle of the outer wall of the rotating shaft 210, a turntable 207 fixedly connected to the far ends of the plurality of rotating shafts 210, a hand crank 208 fixedly connected to the outer wall of the turntable 207, a slide rail 201 provided on the outer wall of the housing 211, a sliding lock 203 slidably connected to the outer wall of the slide rail 201, and a fixing pin 204 slidably connected to the inner right side of the housing 211.

[0037] Specifically, a base plate 27 is fixedly connected to the top of the connecting block 209, forming the main support platform of the device. A rack 205 is fixedly connected to the bottom of the connecting block 209, providing vertical movement. A lifting support column 202 is also fixedly connected to the bottom of the connecting block 209, providing support for the connecting block 209. A housing 211 is fixedly connected to the bottom of the lifting support column 202, providing support and protection for the internal transmission mechanism. A rotating shaft 210 is rotatably connected to the inner wall of the housing 211, allowing the rotating shaft 210 to rotate around its axis within the housing 211. A gear 206 is fixedly connected to the middle of the outer wall of the rotating shaft 210, meshing with the rack 205 to drive the rotation of the rotating shaft 210. The motion is converted into linear lifting and lowering motion of rack 205 and connecting block 209. Turntable 207 is fixedly connected to the opposite ends of the rotating shaft 210. Turntable 207 facilitates the application of rotational torque. Hand crank 208 is fixedly connected to the outer wall of turntable 207, providing a force point for manual operation. Slide rail 3 201 is provided on the side wall of housing 211, defining the sliding path. Sliding latch 203 is slidably connected to the groove wall of slide rail 3 201. Sliding latch 203 can move along slide rail 3 201 to lock or release the lifting position. Fixing pin 1 204 is slidably connected to the right inner wall of housing 211. Fixing pin 1 204 can slide in the direction perpendicular to the movement of sliding latch 203, cooperating with sliding latch 203 to achieve position locking.

[0038] Please see the appendix Figure 1 Appendix Figure 4 and attached Figure 7 An air inlet 16 is provided on the top left side of the mold plate 4, and an air inlet valve 22 is connected to the inner wall of the air inlet 16. An air outlet 17 is provided on the top right side of the mold plate 4, and an air outlet valve 23 is connected to the inner wall of the air outlet 17. A rubber ring 11 is fixed to the outer side of the top of the mold plate 4. Fixing pins 12 are fixedly connected to the four corners of the top of the mold plate 4. A baffle 28 is fixedly connected to the left side of the guide rail 1. An air guide pipe 7 is slidably connected to the inner wall of the left side of the baffle 28. An air compressor 8 is connected to the bottom of the air guide pipe 7.

[0039] Specifically, an air inlet 16 is provided on the top left side of the mold plate 4. This air inlet 16 is used to introduce compressed gas. An air inlet valve 22 is connected to the inner wall of the air inlet 16, which controls the gas flow and on / off. An air outlet 17 is provided on the top right side of the mold plate 4. This air outlet 17 is used to discharge residual gas. An air outlet valve 23 is connected to the inner wall of the air outlet 17, which adjusts the exhaust rate. A rubber ring 11 is fixed to the outer side of the top of the mold plate 4. 1. To achieve sealing when the mold is closed, fixing pins 2 and 12 are fixedly connected to the four corners of the top of the mold plate 1 4. The fixing pins 2 and 12 provide positioning reference for the mold plate 2 5. A baffle 2 and 28 are fixedly connected to the left side of the guide rail 1. The baffle 2 and 28 limit the movement range of the air guide pipe 7. The air guide pipe 7 is slidably connected to the inner wall of the left side of the baffle 2 and 28. The air guide pipe 7 can slide vertically along the baffle 2 and 28 to adapt to height changes. The bottom of the air guide pipe 7 is connected to an air compressor 8, which provides a high-pressure air source.

[0040] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 3 The base plate 27 has multiple support columns 33 fixedly connected to the top near the edge. A stamping press 6 is fixedly connected to the top of the support column 33. A mold plate 5 is fixedly connected to the bottom of the stamping press 6. A spring 13 is fixedly connected to the top of the mold plate 5. A rubber head 9 is fixedly connected to the bottom of the mold plate 5. A stamping press 15 is fixedly connected to the middle of the outer wall of the multiple support columns 33. A mold plate 3 14 is fixedly connected to the far end of the stamping press 15. A baffle 26 is fixedly connected to the right side of the guide rail 1. A control box 18 is fixedly connected to the right side of the baffle 26. An electrical box 10 is fixedly connected to the far left of the top of the base plate 27. A support leg pad 3 is fixedly connected to the bottom of the outer shell 211. A rubber sleeve 212 is slidably connected to the outer wall of the hand crank 208.

[0041] Specifically, multiple support columns 33 are fixedly connected to the top of the base plate 27 near its edge, forming the main frame of the equipment. A stamping press 6 is fixedly connected to the top of each support column 33, performing the main forming stamping. A mold plate 5 is fixedly connected to the bottom of the stamping press 6, forming a cavity with the mold plate 4. A spring 13 is fixedly connected to the top of the mold plate 5, providing mold opening buffer. A rubber head 9 is fixedly connected to the bottom of the mold plate 5, protecting the workpiece surface. A second stamping press 15 is fixedly connected to the lower outer walls of the multiple support columns 33, driving the stamping press 15. In the auxiliary stamping process, the output end of the stamping machine 2 15 is fixedly connected to the mold plate 3 14, which completes the lateral processing. The right side of the guide rail 1 is fixedly connected to the baffle 1 26, which isolates the mechanical movement area. The right side of the baffle 1 26 is fixedly connected to the control box 18, which integrates the equipment control unit. The top left end of the base plate 27 is fixedly connected to the electrical box 10, which distributes the system power. The bottom of the outer shell 211 is fixedly connected to the support leg pad 3, which provides stable support for the equipment. The outer wall of the hand crank 208 is slidably connected to the rubber sleeve 212, which enhances the anti-slip properties during operation.

[0042] Working principle: The mold is placed on mold plate 4 and engaged with fixing pin 12. Pressing the control button on control box 18 starts motor 19, driving front wheel 20 to move to the left. Support frame 29 above motor 19 moves to the left, driving rear wheel 21 to the left. After reaching a certain position, front wheel 20 and rear wheel 21 slide into inclined rails 24 and 25, causing mold plate 4 to descend horizontally and be placed on load block 32. Pressing the button on control box 18 starts press presses 6 and 2 15, pressing mold plate 5 and mold plate 3 14 to seal the mold. Pressing the button on control box 18 starts air compressor 8. Air enters the air inlet valve 22 through the air guide pipe 7, inflating the mold. After inflation, soapy water is sprayed onto the mold surface. The mold is left to stand and observed for air leakage. After the test, the control box button 18 is pressed, and the air outlet valve 23 releases the air. The first press 6 and the second press 15 return to their original positions. The motor 19 starts and drives the front wheel 20 to move to the right. The support frame 29 above the motor 19 moves to the right, driving the rear wheel 21 to move to the right. After the front wheel 20 and the rear wheel 21 reach a certain position, they rise into the inclined rail 1 24 and the inclined rail 2 25. The top right side of the support frame 29 presses against the baffle 3 34, driving the mold plate 1 4 to move to the right until it returns to its original position.

[0043] Pull up the sliding lock 203 to pull out the fixing pin 204, turn the hand crank 208, and drive the gear 206 to rotate through the rotating shaft 210. The gear 206 meshes with the rack 205, and the rack 205 drives the connecting block 209 to move up and down. Adjust the height of the outrigger, insert the fixing pin 204 back in, and pull down the sliding lock 203 to lock the fixing pin 204. After the multiple leveling mechanisms 2 are adjusted, the control panel remains level.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A device for detecting the tightness of a cast iron piece, comprising a guide rail (1), characterized in that The inner wall of the guide rail (1) is provided with a slide rail two (31), the inner wall of the slide rail two (31) is provided with a slant rail one (24), the inner wall of the slide rail two (31) is slidably connected to a front wheel (20), the inner wall of the guide rail (1) is provided with a slide rail one (30), the inner wall of the slide rail one (30) is slidably connected to a rear wheel (21), a support frame (29) is rotatably connected between adjacent rear wheels (21), a motor (19) is fixedly connected to the bottom of the support frame (29), and the top of the support frame (29) is... A mold plate (4) is provided, the bottom of which is attached to the top of the support frame (29). A baffle (34) is fixedly connected to the right side of the support frame (29). An inclined rail (25) is provided on the left side of the inner wall of the slide rail (31). A base plate (27) is fixedly connected to the bottom of the guide rail (1). A load-bearing block (32) is fixedly connected to the top left side of the base plate (27). A leveling mechanism (2) is fixedly connected to the bottom of the base plate (27). The leveling mechanism (2) is used to level the device horizontally.

2. The device for detecting the air tightness of a cast iron piece according to claim 1, characterized in that: The leveling mechanism (2) includes a connecting block (209), the top of which is fixedly connected to the bottom of the base plate (27), a rack (205) fixedly connected to the bottom of the connecting block (209), a lifting support (202) fixedly connected to the bottom of the connecting block (209), a housing (211) fixedly connected to the bottom of the lifting support (202), a rotating shaft (210) rotatably connected to the inner wall of the housing (211), a gear (206) fixedly connected to the middle of the outer wall of the rotating shaft (210), a turntable (207) fixedly connected to the far end of each of the multiple rotating shafts (210), a hand crank (208) fixedly connected to the outer wall of the turntable (207), a slide rail three (201) opened on the outer wall of the housing (211), a sliding lock (203) slidably connected to the outer wall of the slide rail three (201), and a fixing pin one (204) slidably connected to the inner right side of the housing (211).

3. The device for detecting the air tightness of a cast iron piece according to claim 1, characterized in that: An air inlet (16) is provided on the top left side of the mold plate (4), and an air inlet valve (22) is connected to the inner wall of the air inlet (16). An air outlet (17) is provided on the top right side of the mold plate (4), and an air outlet valve (23) is connected to the inner wall of the air outlet (17).

4. The apparatus according to claim 2, wherein: The bottom of the outer shell (211) is fixedly connected to the support leg pad (3), and the outer wall of the hand crank (208) is slidably connected to the rubber sleeve (212).

5. The apparatus according to claim 1, wherein: The top of the base plate (27) is fixedly connected to a plurality of support columns (33) near the edge. The top of the support column (33) is fixedly connected to a first stamping press (6). The bottom of the first stamping press (6) is fixedly connected to a second mold plate (5). The top of the second mold plate (5) is fixedly connected to a spring (13). The bottom of the second mold plate (5) is fixedly connected to a rubber head (9). The middle of the outer wall of the nearest end of the plurality of support columns (33) is fixedly connected to a second stamping press (15). The far end of the second stamping press (15) is fixedly connected to a third mold plate (14).

6. The apparatus according to claim 1, wherein: A baffle (26) is fixedly connected to the right side of the guide rail (1), and a control box (18) is fixedly connected to the right side of the baffle (26). An electrical box (10) is fixedly connected to the far left side of the top of the base plate (27).

7. The apparatus according to claim 1, wherein: A rubber ring (11) is fixed on the outer side of the top of the mold plate 1 (4), and a fixing pin 2 (12) is fixedly connected at each of the four corners of the top of the mold plate 1 (4).

8. The apparatus according to claim 1, wherein: A baffle plate (28) is fixedly connected to the left side of the guide rail (1), and an air duct (7) is slidably connected to the inner wall of the left side of the baffle plate (28). An air compressor (8) is connected to the bottom of the air duct (7).

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