An automatic leak detector

Abstract

This invention relates to an automatic leak detection machine, comprising a frame, an automatic sorting and feeding mechanism and a filter unloading mechanism arranged parallel to one side of the frame, a leak detection station for airtightness testing of the filters, a side leak station containing a side leak water tank, and a flipping mechanism for driving the filters into or out of the leak detection water tank and a transfer mechanism for circulating the filters at the corresponding leak detection station on the frame. The flipping mechanism includes a flipping frame, a first mounting frame and a second mounting frame for mounting the filters, and a flipping component. When the filters on the first mounting frame are placed in the leak detection water tank, the filters on the second mounting frame are placed in a transfer station suitable for transfer by the transfer mechanism. This improves leak detection efficiency while requiring only one flipping station, reducing the space occupied by the equipment. At the same time, the side-entry sorting device can keep the center of gravity of the filters stable and prevent the filters from tipping over during arrangement.

Description

Technical Field

[0001] This invention relates to the field of filter testing equipment, and more specifically to an automatic leak detector. Background Technology

[0002] The oil filter is one of the most important components of an engine. Its performance not only determines the engine's reliability and lifespan, but also has a significant impact on its power, fuel economy, and emissions. The airtightness of the oil filter directly affects the quality of motor vehicles, making pressure regulation and leak detection of automotive filters a very important technical field.

[0003] Application number CN202222963333.7 proposes a dual-station leak detection machine, which transforms the original single-operation leak detection structure into a dual-station leak detection system. This avoids the problem of low efficiency caused by the inability to detect the next set of filters until the previous set has been tested. However, in the above structure:

[0004] (1) The dual workstations are set up side by side, which increases the length of the equipment and makes the equipment occupy a large space.

[0005] (2) The sorting mechanism includes a sorting plate and a baffle block. The baffle block is used to accurately position each filter to be clamped. Since the baffle block extends from below and the filter is relatively high, the center of gravity of the filter is unstable during sorting, causing the filter to tip over. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to address the shortcomings of the prior art.

[0007] An automatic leak detection machine is provided.

[0008] To achieve the above objectives, the present invention provides the following technical solution: an automatic leak detection machine, comprising a frame, an automatic sorting and feeding mechanism and a filter unloading mechanism arranged parallel to one side of the frame, characterized in that: the frame is provided with a leak detection station for airtightness testing of the filter, the leak detection station is provided with a leak detection water tank, and the frame is provided with a flipping mechanism for driving the filter into or out of the leak detection water tank and a transfer mechanism for driving the filter to circulate sequentially between the automatic sorting and feeding mechanism, the flipping mechanism and the filter unloading mechanism at the corresponding leak detection station, the flipping mechanism and the transfer mechanism, the flipping mechanism includes a flipping frame, the flipping frame is provided with a first mounting frame and a second mounting frame for mounting the filter, the flipping frame is provided with a flipping component for driving it to rotate and causing the filter of the first mounting frame or the filter of the second mounting frame to flip to the leak detection water tank, when the filter of the first mounting frame is placed in the leak detection water tank, the filter of the second mounting frame is placed in a transfer station suitable for transfer by the transfer mechanism.

[0009] A further feature of this invention is that the first mounting bracket and the second mounting bracket are rotatably mounted on the flipping frame via a first rotating shaft and a second rotating shaft, respectively. The flipping assembly includes a drive shaft disposed at one end of the flipping frame. The drive shaft is disposed between the first rotating shaft and the second rotating shaft. The drive shaft is provided with a drive device for driving its rotation. The drive shaft is fixedly connected to the flipping frame. The drive shaft is provided with an output gear for synchronous rotation. The first rotating shaft and the second rotating shaft are respectively provided with a first linkage gear and a second linkage gear. A first intermediate gear is linked between the first linkage gear and the output gear. A second intermediate gear is linked between the second linkage gear and the output gear. The first mounting bracket and the second mounting bracket are respectively provided with at least two filter clamping mechanisms. When the filter of the first mounting bracket is placed at the leak testing station, the filter of the second mounting bracket is located at the transfer station, and the filter of the second mounting bracket is vertically upward.

[0010] The present invention having the above features: a flipping mechanism is provided with two mounting brackets for installing filters, and is provided with a transfer station and a leak detection station. The first mounting bracket and the second mounting bracket alternately enter the leak detection station. When one mounting bracket enters the leak detection station, the other mounting bracket transfers the filter at the transfer station. This is done synchronously to improve the leak detection efficiency.

[0011] A further feature of the present invention is that the transfer mechanism includes a transfer guide rail disposed above the frame, a transfer frame movable on the transfer guide rail, a transfer clamping plate disposed on the transfer frame, a transverse drive assembly for driving the transfer frame to move back and forth in the automatic sorting feeding mechanism and the filter unloading mechanism, a longitudinal drive assembly for driving the transfer clamping plate to rise and fall along the axial direction of the transfer frame, and a clamping drive assembly for driving the transfer clamping plate to open and close, thereby clamping or releasing the filter.

[0012] A further provision of the present invention is as follows: the transverse drive assembly includes transverse synchronous pulleys disposed on both sides of the transfer guide rail, a transverse synchronous belt wound around the transverse synchronous pulleys on both sides, a transverse drive motor disposed on one side of the transfer guide rail to drive one of the transverse synchronous pulleys to rotate, and a transverse fixing block disposed on the transfer frame and connected to the transverse synchronous belt. The transverse drive motor drives the transverse synchronous belt to rotate, thereby driving the transfer frame to move back and forth along the transfer guide rail. The longitudinal drive assembly includes longitudinal synchronous pulleys disposed on both sides of the transfer frame, a longitudinal synchronous belt sleeved between the longitudinal synchronous pulleys, longitudinal lifting plates disposed on both sides of the transfer clamping plate, and a longitudinal drive motor disposed on the transfer frame to drive the longitudinal synchronous pulleys to rotate. A longitudinal drive screw is disposed between the longitudinal synchronous pulleys and the longitudinal lifting plates. A longitudinal threaded sleeve is disposed on the longitudinal lifting plates. One end of the longitudinal drive screw is linked to the longitudinal synchronous pulley, and the longitudinal drive screw is threadedly connected to the longitudinal threaded sleeve. The longitudinal drive motor drives the longitudinal synchronous pulleys to rotate, causing the transfer clamping plate to move up and down along the longitudinal drive screw axis.

[0013] The present invention having the above features includes a transfer mechanism with a transfer clamp that holds filters in batches and moves them back and forth to the transfer station, an automatic sorting mechanism, and a filter unloading mechanism.

[0014] A further feature of the present invention is that the automatic sorting and feeding mechanism includes a feeding conveyor belt with a feeding end and sorting devices arranged in an orderly manner on one side of the feeding conveyor belt.

[0015] A further feature of the present invention is that the sorting device includes a sorting plate that can be displaced above the feeding conveyor belt or completely detached from the feeding conveyor belt. The sorting plate is provided with a displacement driving device for driving its displacement, and the displacement driving device is connected to the frame through a mounting plate.

[0016] A further feature of the present invention is that the sorting plate is provided with an arc-shaped groove facing the feed end, which is adapted to the side of the filter, and the arc-shaped groove is provided in the middle of the side of the filter.

[0017] The present invention having the above features: the sorting device has a sorting plate that reaches above the feed conveyor belt from the side and contacts the middle of the side of the filter, arranging the filter in an orderly manner. At the same time, the way the sorting plate contacts the filter from the middle of the side ensures that the filter can maintain a stable center of gravity and will not tip over when the sorting plate is arranging the filter. In addition, the arc-shaped groove is set to fit the surface of the filter better.

[0018] The beneficial effects of this invention are as follows: A flipping mechanism is provided with two mounting brackets for installing filters, and is provided with a transfer station and a leak testing station. The first mounting bracket and the second mounting bracket alternately enter the leak testing station. When one mounting bracket enters the leak testing station, the other mounting bracket transfers the filter at the transfer station. This is done synchronously, which improves the leak testing efficiency. At the same time, only one flipping station is needed, which shortens the length of the equipment and reduces the space occupied by the equipment. Meanwhile, the side-entry sorting device can keep the center of gravity of the filter stable and prevent the filter from tipping over when it is arranged.

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0020] Figure 1 This is a three-dimensional illustration of an embodiment of the present invention. Figure 1 .

[0021] Figure 2 This is a three-dimensional illustration of an embodiment of the present invention. Figure 2 .

[0022] Figure 3 This is a three-dimensional illustration of an embodiment of the present invention. Figure 3 .

[0023] Figure 4This is a three-dimensional illustration of an embodiment of the present invention. Figure 4 .

[0024] Figure 5 This is a three-dimensional schematic diagram of the flipping mechanism according to an embodiment of the present invention.

[0025] Figure 6 This is a three-dimensional schematic diagram of the automatic sorting and feeding mechanism according to an embodiment of the present invention. Detailed Implementation

[0026] like Figure 1 —— Figure 6An automatic leak detection machine is shown, comprising a frame 1, an automatic sorting and feeding mechanism 2 and a filter unloading mechanism 3 arranged parallel to one side of the frame 1, a leak detection station for airtightness testing of the filter, a leak detection water tank 4 within the leak detection station, and a visual leak detection mechanism (not shown in the figure, operation method can be found in the waterproof industrial camera leak detection method in the applicant's previous utility model patent application CN202022394396.6) above each leak detection station on the frame 1, which drives the filter into or out of the leak detection water tank 4, and a mechanism with... The filter operates in a sequential cycle between the automatic sorting and feeding mechanism 2, the tilting mechanism 5, and the filter unloading mechanism 3. The filter unloading mechanism 3 includes a feeding conveyor belt 301 located on one side of the tilting mechanism 5 and a screening mechanism 302 located at one end of the feeding conveyor belt 301. The screening mechanism 302 is electrically connected to the visual leak detection mechanism. The tilting mechanism 5 includes a tilting frame 501, which has a first mounting frame 502 and a second mounting frame 503 for mounting the filter. The tilting frame 501 is configured to drive its rotation and cause the filter on the first mounting frame 502 or the filter on the second mounting frame 503 to tilt into the leak detection tank. The flipping assembly 4, with the filter of the first mounting bracket 502 placed in the leak test tank 4, and the filter of the second mounting bracket 503 placed in a transfer station suitable for transfer by the transfer mechanism 6, the first mounting bracket 502 and the second mounting bracket 503 are rotatably mounted on the flipping frame 501 via the first rotating shaft 504 and the second rotating shaft 505 respectively. The flipping assembly includes a drive shaft 506 located at one end of the flipping frame 501, between the first rotating shaft 504 and the second rotating shaft 505. The drive shaft 506 is equipped with a drive device 507 for driving its rotation, which is a servo motor with a steering mechanism. A drive shaft is synchronously rotated and is fixedly connected to a tilting frame 501, and is provided with an output gear 508. A first rotating shaft 504 and a second rotating shaft 505 are respectively provided with a first linkage gear 509 and a second linkage gear 5010. A first intermediate gear 5011 is provided in linkage between the first linkage gear 508 and the output gear 508. A second intermediate gear 5012 is provided in linkage between the second linkage gear 5010 and the output gear 508. A first mounting frame 502 and a second mounting frame 503 are respectively provided with at least two filter clamping mechanisms 5013. The filter clamping mechanism 5013 is referred to in application number: CN202222963333.The filter clamping mechanism in section 7 will not be described in detail here. When the filter of the first mounting bracket 502 is placed at the leak testing station, the filter of the second mounting bracket 503 is located at the transfer station, and the filter of the second mounting bracket 503 is vertically upward. When the first intermediate gear 5011 is smaller than the second intermediate gear 5012, the first mounting bracket 502 rotates 90° around the drive shaft 506, and the first mounting bracket 503 rotates 90° around the first rotating shaft 504. The second mounting bracket 503 rotates 270° around the drive shaft 506 and 270° around the first rotating shaft 503. Transfer mechanism 6. The system includes a transfer guide rail 601 mounted above the frame 1, a transfer frame 602 moving along the transfer guide rail 601, a transfer clamping plate 603 mounted on the transfer frame, a transverse drive assembly that drives the transfer frame 602 to reciprocate back and forth in the automatic sorting feeding mechanism 2 and the filter unloading mechanism 3, a longitudinal drive assembly that drives the transfer clamping plate 603 to rise and fall axially along the transfer frame 602, and a clamping drive assembly that drives the transfer clamping plate 603 to open and close to clamp or release the filter. The transverse drive assembly includes transverse synchronous pulleys 604 mounted on both sides of the transfer guide rail 601, and a transverse synchronous belt 605 wound around the transverse synchronous pulleys 604 on both sides. A transverse drive motor 606, positioned on one side of the transfer guide rail 601, drives one of the transverse synchronous pulleys 604 to rotate, and a transverse fixing block 607, mounted on the transfer frame 602 and connected to the transverse synchronous belt, drives the transverse drive motor 606 to rotate the transverse synchronous belt 605, thereby driving the transfer frame 602 to move back and forth along the transfer guide rail 601. The longitudinal drive assembly includes longitudinal synchronous pulleys 608 mounted on both sides of the transfer frame 602, a longitudinal synchronous belt 609 sleeved between the longitudinal synchronous pulleys 608, longitudinal lifting plates 6010 mounted on both sides of the transfer clamping plate 603, and a drive longitudinal synchronous pulley 604 mounted on the transfer frame 602. The system includes a longitudinal drive motor 6011 that rotates, a longitudinal drive screw 6012 between a longitudinal synchronous pulley 608 and a longitudinal lifting plate 6010, a longitudinal threaded sleeve 6013 on the longitudinal lifting plate 6010, one end of the longitudinal drive screw 6012 being linked to the longitudinal synchronous pulley 608, and the longitudinal drive screw 6012 being threadedly connected to the longitudinal threaded sleeve 6013. The longitudinal drive motor 6011 drives the longitudinal synchronous pulley 608 to rotate, causing the transfer clamp 603 to rise and fall along the axial direction of the longitudinal drive screw 6012. The transfer clamp 603 and the clamping drive assembly are described in the prior application application number: CN202222963333.The transfer clamp and clamping drive assembly in section 7 will not be described in detail here. The automatic sorting and feeding mechanism 2 includes a feeding conveyor belt 201 with a feeding end 20101 and sorting devices arranged in an orderly manner on one side of the feeding conveyor belt 201. The sorting device includes a sorting plate 202 that can be moved above or completely detached from the feeding conveyor belt 201. The sorting plate 202 is provided with a displacement drive device 203, which is a cylinder, to drive its displacement. The displacement drive device 203 is connected to the frame 1 through a mounting plate 204. The sorting plate 202 has an arc-shaped groove 20201 facing the feeding end 20101 that is adapted to the side of the filter. The arc-shaped groove 20201 is set at the middle of the side of the filter.

Claims

1. An automatic leak detection machine, comprising a frame, an automatic sorting and feeding mechanism and a filter unloading mechanism arranged parallel to one side of the frame, characterized in that: The frame is equipped with a leak testing station for airtightness testing of the filters. The leak testing station contains a leak testing water tank. Each leak testing station on the frame is equipped with a tilting mechanism that moves the filters into or out of the leak testing water tank, and a transfer mechanism that sequentially circulates the filters between an automatic sorting feeding mechanism, a tilting mechanism, and a filter unloading mechanism. The tilting mechanism includes a tilting frame with a first mounting frame and a second mounting frame for installing the filters. The tilting frame has a tilting component that drives its rotation, causing the filters on the first mounting frame or the second mounting frame to tilt into the leak testing water tank. When the filter on the first mounting frame is placed in the leak testing water tank, the filter on the second mounting frame is placed in a suitable location for the transfer mechanism. The structure drives the transfer of the workstation to be transferred. The first mounting frame and the second mounting frame are rotatably mounted on a tilting frame via a first rotating shaft and a second rotating shaft, respectively. The tilting assembly includes a rotating shaft at one end of the tilting frame. A drive shaft is provided between the first and second rotating shafts on the rotating shaft. The drive shaft has a drive device for driving its rotation. The drive shaft is fixedly connected to the tilting frame. An output gear is provided on the drive shaft for synchronous rotation. The first and second rotating shafts are respectively provided with a first linkage gear and a second linkage gear. A first intermediate gear is linked between the first linkage gear and the output gear. A second intermediate gear is linked between the second linkage gear and the output gear. The first mounting frame and the second mounting frame... The two mounting frames are each equipped with at least two filter clamping mechanisms. When the filter of the first mounting frame is placed at the leak testing station, the filter of the second mounting frame is located at the transfer station, and the filter of the second mounting frame is vertically upward. The transfer mechanism includes a transfer guide rail mounted above the frame, a transfer frame that moves along the transfer guide rail, a transfer clamping plate mounted on the transfer frame, a transverse drive assembly that drives the transfer frame to move back and forth in the automatic sorting feeding mechanism and the filter unloading mechanism, a longitudinal drive assembly that drives the transfer clamping plate to rise and fall along the axial direction of the transfer frame, and a clamping drive assembly that drives the transfer clamping plate to open and close to clamp or release the filter. The transverse drive assembly includes transverse synchronous wheels mounted on both sides of the transfer guide rail and transverse synchronous wheels mounted on both sides. The system includes a transverse synchronous belt on the synchronous pulley, a transverse drive motor on one side of the transfer guide rail that drives one of the transverse synchronous pulleys to rotate, and a transverse fixing block on the transfer frame that is connected to the transverse synchronous belt. The transverse drive motor drives the transverse synchronous belt to rotate, thereby driving the transfer frame to move back and forth along the transfer guide rail. The longitudinal drive assembly includes longitudinal synchronous pulleys on both sides of the transfer frame, a longitudinal synchronous belt sleeved between the longitudinal synchronous pulleys, longitudinal lifting plates on both sides of the transfer clamping plate, and a longitudinal drive motor on the transfer frame that drives the longitudinal synchronous pulleys to rotate. A longitudinal drive screw is provided between the longitudinal synchronous pulleys and the longitudinal lifting plates. A longitudinal screw sleeve is provided on the longitudinal lifting plates. One end of the longitudinal drive screw is linked to the longitudinal synchronous pulley.

2. An automatic leak detector according to claim 1, characterized in that: The longitudinal drive screw is threadedly connected to the longitudinal threaded sleeve. The longitudinal drive motor drives the longitudinal synchronous wheel to rotate, causing the transfer clamp to move up and down along the longitudinal drive screw axis.

3. An automatic leak detector according to claim 1, characterized in that: The automatic sorting and feeding mechanism includes a feeding conveyor belt with a feeding end and sorting devices arranged in an orderly manner on one side of the feeding conveyor belt.

4. An automatic leak detector according to claim 3, characterized in that: The sorting device includes a sorting plate that can be displaced above the feed conveyor belt or completely detached from the feed conveyor belt. The sorting plate is equipped with a displacement driving device that drives its displacement. The displacement driving device is connected to the frame through a mounting plate.

5. An automatic leak detector according to claim 4, characterized in that: The sorting plate is provided with an arc-shaped groove facing the feed end that is adapted to the side of the filter, and the arc-shaped groove is set in the middle of the side of the filter.

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