Gas detection mechanism for water pump shell

Abstract

The utility model relates to the technical field of automobile water pump shells, in particular to a gas detection mechanism for a water pump shell, which comprises a bearing plate, and a pressing device, a sealing device, a positioning device and a coding device which are respectively arranged on the bearing plate, the pressing device, the sealing device, the positioning device and the code printing device are arranged around the peripheral side of the fixing hole, a first airtight channel is formed in the pressing device, a second airtight channel is formed in the sealing device, and the first airtight channel is communicated with the second airtight channel. The first airtight channel and the second airtight channel are used for communicating the interior of the water pump shell with an airtight instrument. According to the air detection mechanism for the water pump shell, air tightness detection of the water pump shell can be achieved without visual judgment of an operator, the misjudgment problem is effectively avoided, and a product meets the high-precision requirement; manual participation steps are reduced, the labor intensity of workers is effectively reduced, and the production efficiency is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile water pump housings, in particular to a gas inspection mechanism for water pump housings. Background Art

[0002] The water pump assembly is a key component that controls the flow of coolant in the engine cooling system. At present, most automobile engine water pumps are mechanical water pumps. The operation of mechanical water pumps depends on the engine main shaft drive, that is, after the engine is started, the engine water pump is also started. Under different automobile working conditions, the working condition of the engine water pump will also change accordingly, that is, when the engine speed is high, the water pump speed is high, and the coolant flow rate increases to quickly cool the various components in the engine; when the engine speed is low, the water pump speed is reduced and the flow rate is reduced to ensure that the engine works at a suitable temperature. The existing water pump housing air tightness detection mainly relies on manual work. The water pump housing is sealed and submerged in water, and gas is passed inward to observe whether there are bubbles on the outside. Human visual judgment is prone to misjudgment, and the air tightness detection data cannot be read in real time.

[0003] It can be seen that the existing technology still needs to be improved and enhanced. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the purpose of the present utility model is to provide an air detection mechanism for a water pump housing to solve the technical problems that the existing water pump housing air tightness detection is manually judged visually, prone to misjudgment, and the air tightness detection data cannot be read in real time.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An air inspection mechanism for a water pump housing comprises a supporting plate, and a clamping device, a sealing device, a positioning device and a coding device respectively arranged on the supporting plate, wherein the supporting plate is provided with a fixing hole for placing the water pump housing, the clamping device, the sealing device, the positioning device and the coding device are respectively arranged around the circumference of the fixing hole, the clamping device is provided with a first airtight channel, the sealing device is provided with a second airtight channel, and the first airtight channel and the second airtight channel are used to connect the interior of the water pump housing with the airtightness instrument.

[0007] As described above, the air inspection mechanism for the air pump housing, the sealing device includes a plurality of first air inspection modules and at least two second air inspection modules arranged on the upper side of the support plate, and at least one third air inspection module arranged on the lower side of the support plate, the first airtight channel and the plurality of the first air inspection modules constitute a first air inspection group, at least two of the second air inspection modules, the third air inspection module and the second airtight channel constitute a second air inspection group, and the second airtight channel is arranged on the third air inspection module.

[0008] As described above, the air inspection mechanism for the air pump housing, the first air inspection module, the second air inspection module and the third air inspection module respectively include a first pushing cylinder fixed on the supporting plate, and a sealing plug installed on the output end of the first pushing cylinder, and the diameter of each sealing plug is set corresponding to the aperture of the water pump housing.

[0009] As described above, the air inspection mechanism for the air pump housing, the clamping device includes a first clamping module abutting against the top of the water pump housing, and a second clamping module and a third clamping module respectively fixed on both sides of the supporting plate, and the first airtight channel is arranged on the first clamping module.

[0010] As described above, the air inspection mechanism for the air pump housing, the third clamping module includes a fixed seat arranged on the supporting plate, a second pushing cylinder installed on the fixed seat, a movable plate arranged on the output end of the second pushing cylinder, a guide structure connecting the fixed seat and the movable plate, a contoured sealing block, and a quick-installation structure connecting the movable plate and the contoured sealing block.

[0011] As described above, the air inspection mechanism for the air pump housing, the guide structure includes a first sleeve that is penetrated and detachably fixed on both sides of the movable plate, and a guide rod that is penetrated through the first sleeve and one end of which is connected to the movable plate.

[0012] As described above, the gas inspection mechanism for the air pump housing, the quick-install structure includes two clamping blocks respectively arranged on both sides of the contoured sealing block and connected to the movable plate, a clamping groove arranged on the opposite side of the two clamping blocks, and convex edges convexly arranged on both sides of the contoured sealing block corresponding to the clamping groove.

[0013] As described above, the air inspection mechanism for the air pump housing also includes a limit device and a fine-tuning device. The limit devices include four, and the four limit devices are respectively arranged at the four diagonal positions of the support plate. The fine-tuning device includes four, and the four fine-tuning devices are respectively clamped and fixed at the four diagonal positions on the outer side of the support plate.

[0014] In the air inspection mechanism for the air pump housing as described above, the limiting device includes a through hole provided on the supporting plate, and a second sleeve fixed to the supporting plate corresponding to the through hole.

[0015] As described above, the air inspection mechanism for the air pump housing, the fine-tuning device includes an angular fixing piece, a locking hole arranged parallel to the height direction of the angular fixing piece, a screw hole arranged transversely on the angular fixing piece, a nut, and an adjusting screw passing through the screw hole and the nut.

[0016] Beneficial effects:

[0017] The utility model provides an air inspection mechanism for a water pump housing, wherein the water pump housing is placed on the fixing hole on the supporting plate, the water pump housing is pressed and fixed by the pressing device, and after the positioning device is synchronously pressed and positioned, the sealing device blocks and seals a plurality of holes on the water pump housing, and an airtightness meter passes gas through the first airtight channel and the second airtight channel and judges the airtightness of the water pump housing, and the coding device codes and confirms if the airtightness requirement is met, and the airtightness detection of the water pump housing can be realized without visual judgment by the operator, thereby effectively avoiding the occurrence of misjudgment problems and enabling the product to meet the high-precision requirements; further, the steps of manual participation are reduced, the labor intensity of the staff is effectively reduced, and the production efficiency is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of the structure of the gas detection mechanism of the embodiment of the present application.

[0019] Figure 2 It is a side view of the gas detection mechanism according to an embodiment of the present application.

[0020] Figure 3 It is a top view of the gas detection mechanism according to an embodiment of the present application.

[0021] 1. Support plate; 2. Clamping device; 21. First clamping module; 22. Second clamping module; 23. Third clamping module; 24. Fixed seat; 25. Second push cylinder; 26. Moving plate; 27. Guide structure; 28. Profile sealing block; 29. ​​Quick-install structure; 271. First sleeve; 272. Guide rod; 291. Snap-on block; 292. Snap-on groove; 293. Convex edge; 3. Sealing device; 31. First gas inspection module; 32. Second gas inspection module; 33. Third gas inspection module; 34. First push cylinder; 35. Sealing plug; 4. Positioning device; 5. Coding device; 6. First airtight passage; 7. Second airtight passage; 8. Limiting device; 9. Fine-tuning device; 91. Angle fixing piece; 92. Locking hole; 93. Screw hole; 94. Nut; 95. Adjusting screw. DETAILED DESCRIPTION

[0022] The utility model provides a gas detection mechanism for a water pump housing. To make the purpose, technical solution and effect of the utility model clearer and more specific, the utility model is further described in detail below with reference to the accompanying drawings and examples.

[0023] In the description of the present invention, it should be understood that the terms "top", "bottom", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and should not be understood as a limitation on the present invention; in addition, the terms "installation", "connection", etc. should be understood in a broad sense, and ordinary technicians in this field can understand the specific meaning of the above terms in the present invention according to the specific circumstances.

[0024] like Figure 1-3 As shown, the embodiment of the present application proposes an air inspection mechanism for a water pump housing, comprising a supporting plate 1, and a clamping device 2, a sealing device 3, a positioning device 4 and a coding device 5 respectively arranged on the supporting plate 1, the supporting plate 1 is provided with a fixing hole for placing the water pump housing, the clamping device 2, the sealing device 3, the positioning device 4 and the coding device 5 are respectively arranged around the circumference of the fixing hole, the clamping device 2 is provided with a first airtight channel 6, the sealing device 3 is provided with a second airtight channel 7, the first airtight channel 6 and the second airtight channel 7 are used to connect the inside of the water pump housing and the airtight instrument.

[0025] The present application discloses an air inspection mechanism for a water pump housing, wherein the water pump housing is placed on the fixing hole on the support plate 1, and the pressing device 2 presses and fixes the water pump housing. After the positioning device 4 presses and judges the positioning simultaneously, the sealing device 3 blocks and seals a plurality of holes on the water pump housing, and an airtightness meter passes gas through the first airtight channel 6 and the second airtight channel 7 to judge the airtightness of the water pump housing. If the airtightness requirement is met, the coding device 5 codes and confirms it. The airtightness detection of the water pump housing can be achieved without visual judgment by the operator, thereby effectively avoiding the occurrence of misjudgment problems and enabling the product to meet high-precision requirements; further, the steps of manual participation are reduced, the labor intensity of the staff is effectively reduced, and the production efficiency is further improved.

[0026] The positioning device 4 includes a third push cylinder and a positioning plug, and the third push cylinder drives the positioning plug to move toward the positioning hole of the water pump housing and position it, which has a simple structure and reduces the cost of initial investment and subsequent maintenance.

[0027] The sealing device 3 includes a plurality of first gas detection modules 31 and at least two second gas detection modules 32 arranged on one side above the support plate 1, and at least one third gas detection module 33 arranged on one side below the support plate 1. The first airtight channel 6 and the plurality of the first gas detection modules 31 form a first gas detection group, and at least two of the second gas detection modules 32, the third gas detection module 33 and the second airtight channel 7 form a second gas detection group. The water pump housing is generally provided with two cavities, namely a suction chamber and a discharge chamber. The pressing device 2 and the positioning device 4 are After the first gas inspection modules 31 in the first gas inspection group seal the holes in one of the cavities, and gas is passed into the first gas-tight channel 6 for ventilation detection. Then, at least two of the second gas inspection modules 32 and the third gas inspection module 33 in the second gas inspection group seal the holes in the other cavity, and gas is passed into the second gas-tight channel 7 for ventilation detection. After the two cavities meet the air-tightness test and are qualified, the coding device 5 marks and confirms. Independent detection makes it easy to find the specific location where the air-tightness problem exists, so that the product meets the air-tightness requirements with higher precision.

[0028] The first air inspection module 31, the second air inspection module 32 and the third air inspection module 33 respectively include a first pushing cylinder 34 fixed on the supporting plate 1, and a sealing plug 35 installed on the output end of the first pushing cylinder 34. The diameters of the sealing plugs 35 correspond to the aperture settings of the water pump housing. By replacing the sealing plugs 35 of different diameters, the sealing of different holes can be achieved, which simplifies the difficulty of research and development of the air inspection mechanism and reduces the investment and subsequent maintenance and replacement costs.

[0029] The clamping device 2 includes a first clamping module 21 abutting against the top of the water pump housing, and a second clamping module 22 and a third clamping module 23 respectively fixed on both sides of the supporting plate 1. The first airtight channel 6 is arranged on the first clamping module 21, and the second airtight channel 7 is arranged on the third air inspection module 33.

[0030] The third clamping module 23 includes a fixed seat 24 arranged on the supporting plate 1, a second pushing cylinder 25 installed on the fixed seat 24, a movable plate 26 arranged on the output end of the second pushing cylinder 25, a guide structure 27 connecting the fixed seat 24 and the movable plate 26, a profiled sealing block 28, and a quick-install structure 29 connecting the movable plate 26 and the profiled sealing block 28, the guide structure 27 includes a first sleeve 271 that is penetrated and detachably fixed on both sides of the movable plate 26, and a guide rod 272 that is penetrated by the first sleeve 271 and one end of which is connected to the movable plate 26, and the guide rod 272 shares part of the movable plate 26 and the profiled sealing block 28 Weight, and at the same time, the second pushing cylinder 25 plays a guiding role when pushing the moving plate 26 to move, so that the imitation sealing block 28 moves linearly to contact the water pump housing, thereby improving the stability of the air inspection mechanism during operation; the quick-loading structure 29 includes two clamping blocks 291 respectively arranged on both sides of the imitation sealing block 28 and connected to the moving plate 26, a clamping groove 292 arranged on the opposite side of the two clamping blocks 291, and a convex edge 293 convexly arranged on both sides of the imitation sealing block 28 corresponding to the clamping groove 292. The quick installation of the imitation sealing block 28 is realized by the cooperation of the clamping groove 292 and the convex edge 293, and different types of water pump housings can be quickly replaced when inspecting, thereby improving production efficiency.

[0031] Among them, the first clamping module 21 can be selected as a cylinder, and the difference between the second clamping module 22 and the third clamping module 23 is that the contoured sealing block on the second clamping module 22 is fixed in a conventional fixing manner. Corresponding to the differences in water pump housings of different models, an appropriate fixing structure is selected, which is more practical.

[0032] The gas detection mechanism also includes a limit device 8 and a fine-tuning device 9. The limit device 8 includes four limit devices 8, which are respectively arranged at the four diagonal positions of the support plate 1. The fine-tuning device 9 includes four fine-tuning devices 9, which are respectively clamped and fixed at the four diagonal positions on the outside of the support plate 1. The limit device 8 includes a through hole provided on the support plate 1, and a second sleeve fixed on the support plate 1 corresponding to the through hole. The fine-tuning device 9 includes an angular fixing member 91, a locking hole 92 arranged parallel to the height direction of the angular fixing member 91, a screw hole 93 transversely arranged on the angular fixing member 91, a nut 94, and an adjusting screw 95 penetrated through the screw hole 93 and the nut 94. When the gas detection mechanism is installed on the external tooling frame, the through hole and the second sleeve cooperate with the connecting rod of the tooling frame for preliminary positioning, and then fine-tuning is performed through the screw hole 93, the nut 94 and the adjusting screw 95 to further fix the gas detection mechanism and ensure the stable operation of the gas detection operation.

[0033] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and the utility model concept of the utility model, and all these changes or substitutions should fall within the protection scope of the utility model.

Claims

1. A gas inspection mechanism for a water pump housing, characterized in that: The invention comprises a supporting plate (1), and a pressing device (2), a sealing device (3), a positioning device (4) and a coding device (5) respectively arranged on the supporting plate (1); the supporting plate (1) is provided with a fixing hole for placing a water pump housing; the pressing device (2), the sealing device (3), the positioning device (4) and the coding device (5) are respectively arranged around the circumference of the fixing hole; the pressing device (2) is provided with a first airtight channel (6); the sealing device (3) is provided with a second airtight channel (7); the first airtight channel (6) and the second airtight channel (7) are used to connect the interior of the water pump housing and the airtight instrument.

2. The gas inspection mechanism for a water pump housing according to claim 1, characterized in that: The sealing device (3) comprises a plurality of first gas detection modules (31) and at least two second gas detection modules (32) arranged on one side above the support plate (1), and at least one third gas detection module (33) arranged on one side below the support plate (1); the first gas-tight channel (6) and the plurality of the first gas detection modules (31) form a first gas detection group; at least two of the second gas detection modules (32), the third gas detection module (33) and the second gas-tight channel (7) form a second gas detection group; the second gas-tight channel (7) is arranged on the third gas detection module (33).

3. The gas inspection mechanism for a water pump housing according to claim 2, characterized in that: The first gas detection module (31), the second gas detection module (32) and the third gas detection module (33) respectively include a first push cylinder (34) fixed on the support plate (1), and a sealing plug (35) installed on the output end of the first push cylinder (34), and the diameter of each sealing plug (35) is set corresponding to the aperture of the water pump housing.

4. The gas inspection mechanism for a water pump housing according to claim 2, characterized in that: The clamping device (2) comprises a first clamping module (21) abutting against the top of the water pump housing, and a second clamping module (22) and a third clamping module (23) respectively fixed to both sides of the support plate (1), and the first airtight channel (6) is arranged on the first clamping module (21).

5. The gas inspection mechanism for a water pump housing according to claim 4, characterized in that: The third clamping module (23) comprises a fixed seat (24) arranged on the supporting plate (1), a second pushing cylinder (25) installed on the fixed seat (24), a movable plate (26) arranged on the output end of the second pushing cylinder (25), a guide structure (27) connecting the fixed seat (24) and the movable plate (26), a contoured sealing block (28), and a quick-installation structure (29) connecting the movable plate (26) and the contoured sealing block (28).

6. The gas inspection mechanism for a water pump housing according to claim 5, characterized in that: The guide structure (27) comprises a first sleeve (271) which is passed through and detachably fixed on both sides of the movable plate (26), and a guide rod (272) which is passed through the first sleeve (271) and one end of which is connected to the movable plate (26).

7. The gas inspection mechanism for a water pump housing according to claim 5, characterized in that: The quick-install structure (29) comprises two clamping blocks (291) respectively arranged on both sides of the contoured sealing block (28) and connected to the movable plate (26), a clamping groove (292) arranged on opposite sides of the two clamping blocks (291), and convex edges (293) protruding on both sides of the contoured sealing block (28) corresponding to the clamping grooves (292).

8. The gas inspection mechanism for a water pump housing according to claim 1, characterized in that: The gas detection mechanism also includes a limit device (8) and a fine-tuning device (9), wherein the limit devices (8) include four, and the four limit devices (8) are respectively arranged at four diagonal positions of the support plate (1); and the fine-tuning device (9) includes four, and the four fine-tuning devices (9) are respectively clamped and fixed at four diagonal positions on the outside of the support plate (1).

9. The gas inspection mechanism for a water pump housing according to claim 8, characterized in that: The limiting device (8) comprises a through hole provided on the supporting plate (1), and a second sleeve fixed on the supporting plate (1) corresponding to the through hole.

10. The gas inspection mechanism for a water pump housing according to claim 8, characterized in that: The fine-tuning device (9) comprises an angular fixing piece (91), a locking hole (92) arranged parallel to the height direction of the angular fixing piece (91), a screw hole (93) arranged transversely on the angular fixing piece (91), a nut (94), and an adjusting screw (95) passing through the screw hole (93) and the nut (94).

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