Air tightness detection device for automobile aluminum alloy die casting

Abstract

The utility model relates to the technical field of automobile part detection, and discloses an automobile aluminum alloy die casting airtightness detection device, which comprises a base, the top of the base is fixedly provided with a connecting frame, the top of the connecting frame is provided with a rotating motor, one end of an output shaft of the rotating motor is coaxially and fixedly connected with a straight gear II, and the other end of the output shaft of the rotating motor is coaxially and fixedly connected with a rotating shaft. The second straight gear is meshed with a third straight gear, the third straight gear is coaxially and fixedly connected with a lead screw, the lead screw penetrates through the top of the connecting frame and is rotationally connected with the connecting frame, the lead screw penetrates through a lifting block and is in threaded connection with the lifting block, and the lifting block is fixedly connected with a sealing cover. The device can quickly clamp and fix the aluminum alloy die casting needing air tightness detection in the device, and meanwhile, the aluminum alloy die casting is integrally sealed, so that the aluminum alloy die casting is conveniently pumped in the later period, the air tightness of the aluminum alloy die casting is conveniently observed, and the detection efficiency of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts detection, in particular to an air tightness detection device for automobile aluminum alloy die castings. Background Art

[0002] Automotive aluminum alloy die-castings are widely used in the automotive manufacturing industry due to their light weight, high strength and good formability, especially in key components such as engine housings and gearbox housings. However, due to the complexity of the die-casting process, aluminum alloy die-castings are prone to defects such as pores and shrinkage holes during the production process, affecting their air tightness and structural strength, and thus air tightness testing of aluminum alloy die-castings is required in the later stage.

[0003] In actual use, the existing automotive aluminum alloy die-casting air tightness detection device adopts a water immersion method for automotive aluminum alloy die-casting detection, has many operation steps and relies on manual operation, which makes it impossible to effectively and accurately detect the air tightness effect, and the detection efficiency is low, resulting in the problem of low convenience of the device.

[0004] For this purpose, the utility model introduces an air tightness detection device for automobile aluminum alloy die castings. Utility Model Content

[0005] In response to the shortcomings of the existing technology, the utility model provides an airtightness detection device for automotive aluminum alloy die-castings, which has the advantages of being able to quickly clamp and seal aluminum alloy die-castings, thereby quickly measuring the airtightness and improving the detection efficiency of the device, solving the problems raised in the background technology.

[0006] The utility model provides the following technical solution: an air tightness detection device for automobile aluminum alloy die-castings, comprising a base, a connecting frame fixedly installed on the top of the base, a rotating motor provided on the top of the connecting frame, one end of the output shaft of the rotating motor coaxially fixedly connected to a spur gear 2, the spur gear 2 meshing with a spur gear 3, the spur gear 3 coaxially fixedly connected to a screw rod, the screw rod passes through the top of the connecting frame and is rotatably connected to the connecting frame, the screw rod passes through a lifting block and is threadedly connected to the lifting block, and the lifting block is fixedly connected to a sealing cover.

[0007] Preferably, the inner bottom of the base is rotatably connected to a rotating shaft 1, and one end of the rotating shaft 1 passes through the inner top of the base and is rotatably connected to the base, one end of the rotating shaft 1 is coaxially fixedly connected to a spur gear 1, the spur gear 1 is meshed with a rack, and the rack is slidably connected to the top of the base, one end of the rack is fixedly connected to a connecting rod, and the top of the connecting rod is connected to a clamping plate, a loading seat is provided on the top of the base, and slots are provided on both sides of the loading seat, and the slots provided on the loading seat are in contact with the connecting rod.

[0008] Preferably, both ends of the lifting block are fixedly connected to a stabilizing rod, and one end of the stabilizing rod is slidably connected to the connecting frame.

[0009] Preferably, the connecting frame is rotatably connected to a linkage shaft, one end of the linkage shaft passes through the base, both ends of the linkage shaft are coaxially fixedly connected to bevel gear three, one of the bevel gear three is meshed with bevel gear four, the bevel gear four is coaxially fixedly connected to a worm, and the worm is rotatably connected to the inner top of the base, one end of the worm is meshed with a worm wheel, and the worm wheel is coaxially fixedly connected to the rotating shaft.

[0010] Preferably, a rotating shaft 2 is provided at the top of the connecting frame for horizontal rotation, and both ends of the rotating shaft 2 are coaxially fixedly connected with a bevel gear 1, one of the bevel gears 1 is meshed with a bevel gear 2, and the bevel gear 2 is coaxially fixedly connected to the output shaft of the rotating motor, and the other bevel gear 1 is meshed with the other bevel gear 3.

[0011] Preferably, an air pump is provided inside the base, and air injection pipes are fixedly connected to both sides of the air pump, and one end of the two air injection pipes passes through the top of the base.

[0012] Preferably, there are two racks, and the two racks are arranged opposite to each other.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The worm gear is meshed with the worm gear at one end and the rotating shaft 1 is coaxially connected to the worm gear, thereby driving the spur gear 1 to rotate, so that the two racks meshing with the spur gear 1 drive the connecting rod to move toward the center of the carrier, thereby clamping and fixing the automotive aluminum alloy die-casting that needs to be tested placed on the top of the carrier.

[0015] 2. The automotive aluminum alloy die-casting air tightness detection device, through the setting of the sealing component, when in use, when the rotating motor drives the clamping component to clamp the aluminum alloy die-casting, the rotation of the spur gear 2 at the end of the output shaft of the rotating motor will drive the spur gear 3 meshing with it and the screw rod coaxially fixedly connected to the spur gear 3 to rotate, thereby driving the lifting block threadedly connected to the screw rod to descend along the trajectory of the screw rod, and driving the sealing cover connected to the lifting block to descend together, thereby sealing the automotive aluminum alloy die-casting fixed by the clamping component, thereby ensuring the overall sealing of the device when performing air tightness detection on the die-casting. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 For this utility model Figure 1 Schematic diagram of the structure viewed from above;

[0018] Figure 3 For this utility model Figure 1 Schematic diagram of the rear view structure;

[0019] Figure 4 For this utility model Figure 1 Schematic diagram of the internal structure;

[0020] Figure 5 For this utility model Figure 3 A in the middle is an enlarged structural diagram;

[0021] Figure 6 For this utility model Figure 3 The enlarged structural diagram at B in the middle;

[0022] Figure 7 For this utility model Figure 4 Enlarged structural diagram at point C in the middle.

[0023] In the figure: 1. Base; 2. Rotating shaft 1; 3. Spur gear 1; 4. Rack; 5. Connecting rod; 6. Carrying seat; 7. Rotating motor; 8. Spur gear 2; 9. Spur gear 3; 10. Screw; 11. Lifting block; 12. Sealing cover; 13. Stabilizing rod; 14. Connecting frame; 15. Rotating shaft 2; 16. Bevel gear 1; 17. Linkage shaft; 18. Bevel gear 3; 19. Worm; 20. Worm wheel; 21. Air pump; 22. Air injection pipe; 23. Bevel gear 2; 24. Bevel gear 4. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figure 1-7 The air tightness detection device for automobile aluminum alloy die-castings includes a base 1, a connecting frame 14 is fixedly installed on the top of the base 1, a rotating motor 7 is provided on the top of the connecting frame 14, one end of the output shaft of the rotating motor 7 is coaxially fixedly connected with a spur gear 2 8, the spur gear 2 8 is meshed with a spur gear 3 9, the spur gear 3 9 is coaxially fixedly connected with a screw rod 10, and the screw rod 10 passes through the top of the connecting frame 14 and is rotatably connected to the connecting frame 14, the screw rod 10 passes through the lifting block 11 and is threadedly connected to the lifting block 11, the lifting block 11 is fixedly connected with a sealing cover 12, and the automatic clamping and sealing process of the aluminum alloy die-casting is realized by the drive of the rotating motor 7, without manual operation, which greatly improves the detection efficiency and accuracy.

[0026] Among them; the inner bottom of the base 1 is rotatably connected to a rotating shaft 2, and one end of the rotating shaft 2 passes through the inner top of the base 1 and is rotatably connected to the base 1, one end of the rotating shaft 2 is coaxially fixedly connected to a spur gear 3, the spur gear 3 is meshed with a rack 4, and the rack 4 is slidably connected to the top of the base 1, one end of the rack 4 is fixedly connected to a connecting rod 5, and the top of the connecting rod 5 is connected to a clamping plate, a carrier seat 6 is provided on the top of the base 1, and slots are provided on both sides of the carrier seat 6, the slots provided on the carrier seat 6 are fitted with the connecting rod 5, through the transmission of the rotating shaft 2 and the spur gear 3, and the meshing action of the spur gear 3 and the rack 4, the clamping plate is able to flexibly clamp the aluminum alloy die-casting placed on the carrier seat 6, this design allows the clamping process to be adaptively adjusted according to the actual size of the die-casting, ensuring the stability and reliability of the device clamping.

[0027] Wherein, both ends of the lifting block 11 are fixedly connected to a stabilizing rod 13, and one end of the stabilizing rod 13 is slidably connected to the connecting frame 14.

[0028] Among them; the connecting frame 14 is rotatably connected to the linkage shaft 17, one end of the linkage shaft 17 passes through the base 1, and both ends of the linkage shaft 17 are coaxially fixedly connected to bevel gear three 18, one bevel gear three 18 is engaged with a bevel gear four 24, and the bevel gear four 24 is coaxially fixedly connected to a worm 19, and the worm 19 is rotatably connected to the inner top of the base 1, and one end of the worm 19 is engaged with a worm wheel 20, and the worm wheel 20 is coaxially fixedly connected to the rotating shaft 2.

[0029] Among them; the top of the connecting frame 14 is provided with a rotating shaft 15 for horizontal rotation, and both ends of the rotating shaft 15 are coaxially fixedly connected to a bevel gear 16, a bevel gear 16 is engaged with a bevel gear 23, and the bevel gear 23 is coaxially fixedly connected to the output shaft of the rotating motor 7, and another bevel gear 16 is engaged with another bevel gear 3 18.

[0030] Among them, an air pump 21 is provided inside the base 1, and air injection pipes 22 are fixedly connected to both sides of the air pump 21. One end of the two air injection pipes 22 passes through the top of the base 1. Through the built-in air pump 21, gas can be directly injected into the aluminum alloy die-casting clamped and sealed in the sealing cover 12, so that the air tightness of the die-casting can be detected by observing the bubble reaction on the surface of the die-casting, thereby improving the detection accuracy of the air tightness of the automotive aluminum alloy die-casting.

[0031] There are two racks 4, and the two racks 4 are arranged opposite to each other.

[0032] Working principle: when in use, first place the automobile aluminum alloy die-casting with the detection foam reagent sprayed on the surface on the workbench 6, and connect the air injection pipe 22 to the automobile aluminum alloy die-casting, and then transmit the rotational power of the output shaft of the motor 7 directly to the bevel gear 2 23 coaxially and tightly connected thereto, so that the bevel gear 2 23 starts to rotate, and this rotational action is further transmitted through the transmission system, specifically by rotating shaft 2 15 and the bevel gear 1 16 connected thereto to drive, bevel gear 1 16 and bevel gear 3 18 are meshed with each other, so the rotation of bevel gear 1 16 will drive bevel gear 3 18 and its coaxial fixed linkage shaft 17 to rotate together, and one end thereof penetrates into the interior of the base 1, and drives another bevel gear 3 18 located inside to rotate, and this internal bevel gear 3 18 is then meshed with bevel gear 4 24, thereby transmitting the rotational power to bevel gear 4 24. Bevel gear four 24 is a key component, and its rotation directly controls the rotation of the worm 19. The worm 19 and the worm wheel 20 are connected by a meshing relationship, so the rotation of the worm 19 will drive the worm wheel 20 to rotate. The worm wheel 20 is coaxially fixed to the rotating shaft 2, so the rotation of the worm wheel 20 will drive the rotating shaft 2 and the spur gear 3 coaxially fixed at one end to rotate together. As the spur gear 3 rotates, the two racks 4 meshing with it will move in opposite directions. This movement is converted into a converging force toward the center of the carrier 6 through the connecting rod 5. Finally, this converging force acts on the automotive aluminum alloy die-casting placed on the top of the carrier 6 to achieve its clamping and fixation.

[0033] At the same time, when the motor 7 starts and drives the clamping assembly to move, the spur gear 2 8 at the end of its output shaft also starts to rotate. The rotational power of the spur gear 2 8 is transmitted through the spur gear 3 9 that is tightly meshed with it. The spur gear 3 9 is coaxially fixedly connected to the screw rod 10, so the screw rod 10 also rotates. The screw rod 10 serves as a transmission element, and its threaded portion matches the thread inside the lifting block 11, forming a spiral transmission mechanism. As the screw rod 10 rotates, the lifting block 11 descends along the axial trajectory of the screw rod 10. This descending movement is smooth and controllable, ensuring the accuracy and reliability of the sealing process, and the lifting block 11 descends along the axial trajectory of the screw rod 10. The lowering block 11 is connected to the sealing cover 12, so the descent of the lifting block 11 will also drive the sealing cover 12 to descend together. The descending movement of the sealing cover 12 gradually covers and fits tightly against the automotive aluminum alloy die-casting fixed by the clamping assembly, thereby achieving sealing of the die-casting. This sealing process is crucial for the airtightness test of the device, because it ensures the sealing of the environment around the die-casting during the test and avoids the influence of external air on the test results. Then, air is pumped into the die-casting through the air pump 21 through the air injection pipe 22, so as to observe whether bubbles are generated on the surface of the die-casting through the sealing cover 12 to test its airtightness.

[0034] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Air tightness detection device for automobile aluminum alloy die castings, characterized in that: The invention comprises a base (1), a connecting frame (14) is fixedly mounted on the top of the base (1), a rotating motor (7) is arranged on the top of the connecting frame (14), one end of the output shaft of the rotating motor (7) is coaxially fixedly connected to a spur gear 2 (8), the spur gear 2 (8) is meshed with a spur gear 3 (9), the spur gear 3 (9) is coaxially fixedly connected to a screw rod (10), and the screw rod (10) passes through the top of the connecting frame (14) and is rotatably connected to the connecting frame (14), the screw rod (10) passes through a lifting block (11) and is threadedly connected to the lifting block (11), and the lifting block (11) is fixedly connected to a sealing cover (12).

2. The air tightness detection device for automotive aluminum alloy die castings according to claim 1, characterized in that: The inner bottom of the base (1) is rotatably connected to a rotating shaft (2), and one end of the rotating shaft (2) passes through the inner top of the base (1) and is rotatably connected to the base (1). One end of the rotating shaft (2) is coaxially fixedly connected to a spur gear (3), and the spur gear (3) is meshed with a rack (4), and the rack (4) is slidably connected to the top of the base (1). One end of the rack (4) is fixedly connected to a connecting rod (5), and the top of the connecting rod (5) is connected to a clamping plate. A carrier seat (6) is provided on the top of the base (1), and slots are provided on both sides of the carrier seat (6), and the slots provided on the carrier seat (6) are fitted with the connecting rod (5).

3. The air tightness detection device for automotive aluminum alloy die castings according to claim 1, characterized in that: Both ends of the lifting block (11) are fixedly connected to a stabilizing rod (13), and one end of the stabilizing rod (13) is slidably connected to a connecting frame (14).

4. The air tightness detection device for automotive aluminum alloy die castings according to claim 1, characterized in that: The connecting frame (14) is rotatably connected to a linkage shaft (17), one end of the linkage shaft (17) passes through the base (1), and both ends of the linkage shaft (17) are coaxially fixedly connected to bevel gear three (18), one of the bevel gear three (18) is engaged with bevel gear four (24), and the bevel gear four (24) is coaxially fixedly connected to a worm (19), and the worm (19) is rotatably connected to the inner top of the base (1), one end of the worm (19) is engaged with a worm wheel (20), and the worm wheel (20) is coaxially fixedly connected to the rotating shaft one (2).

5. The air tightness detection device for automotive aluminum alloy die castings according to claim 4, characterized in that: A second rotating shaft (15) is provided on the top of the connecting frame (14) for horizontal rotation. Both ends of the second rotating shaft (15) are coaxially fixedly connected to a bevel gear (16). One of the bevel gears (16) is meshed with a second bevel gear (23), and the second bevel gear (23) is coaxially fixedly connected to the output shaft of the rotating motor (7). The other bevel gear (16) is meshed with another bevel gear (18).

6. The air tightness detection device for automotive aluminum alloy die castings according to claim 1, characterized in that: An air pump (21) is provided inside the base (1), and air injection pipes (22) are fixedly connected to both sides of the air pump (21), and one end of each of the two air injection pipes (22) passes through the top of the base (1).

7. The air tightness detection device for automotive aluminum alloy die castings according to claim 2, characterized in that: The number of the racks (4) is two, and the two racks (4) are arranged opposite to each other.

Images