A pump body leak detection device and leak detection equipment

Abstract

The present invention relates to the technical field of detection equipment, and in particular to a pump body leak detection device and leak detection equipment, including: a leak detection table; a positioning mold, used for installing the pump body and sealing the port one on the lower side of the pump body; a clamping mechanism, used to press the upper end face of the pump body; a sealing mechanism, including a plurality of sealing components, used to respectively seal the ports on each side of the pump body; an inflation detection mechanism, used to abut one of the ports of the sealed pump body, inflate the cavity in the pump body, and detect the air pressure of the cavity in the pump body; wherein, the sealing component one facing the side of the row of ports two on the pump body includes a driving member one, an arm plate and an elastic sealing plate, the arm plate is installed at the output end of the driving member one, the elastic sealing plate is installed on the arm plate, and the driving member one drives the arm plate to move, so that the elastic sealing plate abuts against the row of ports two of the pump body and seals. The present invention solves the problem that the original leak detection method is time-consuming and labor-intensive, and the detection is inaccurate, which seriously affects the qualified rate of the factory pump body.

Description

Technical Field

[0001] The invention relates to the technical field of detection equipment, in particular to a pump body leakage detection device and leakage detection equipment. Background Art

[0002] A pump is a machine that transports fluids or pressurizes fluids. Pumps can be divided into many categories, such as water pumps, oil pumps, and mud pumps. However, no matter what type of pump, the pump body must be complete without cracks or other holes to ensure the airtightness of the pump body.

[0003] However, in the daily production process, due to the influence of factors such as production equipment or production process, the pump body itself may have cracks or holes. In order to eliminate such pump bodies and ensure the pass rate of the pump bodies, it is necessary to conduct leak detection on the pump bodies.

[0004] The existing leak detection is to seal the sealing surface and hole of the pump casing, then inflate it, put the inflated pump casing into the water, and judge whether the pump casing is leaking by observing whether bubbles appear. This method is not only time-consuming and labor-intensive, but also not accurate enough. The naked eye can only observe large leaks, but micro leaks cannot be observed. There will still be leaks in the pump casing, which seriously affects the qualified rate of the pump casing leaving the factory. Summary of the invention

[0005] The purpose of the present invention is to provide a pump body leak detection device and leak detection equipment, by installing and sealing the pump body on a leak detection table, then inflating the cavity of the pump body, and using an airtightness detector to detect the air pressure in the cavity to determine whether the pump body is leaking, thereby solving the problem that the original leak detection method is time-consuming and labor-intensive, and the detection is inaccurate, which seriously affects the qualified rate of the pump body leaving the factory.

[0006] The object of the present invention is achieved in that:

[0007] A pump body leak detection device, comprising:

[0008] Leak detection table;

[0009] A positioning die, which is mounted on the leak detection table and is used for installing the pump body and sealing port 1 on the lower side of the pump body;

[0010] A pressing mechanism, which is arranged above the positioning die and is used to press against the upper end surface of the pump body;

[0011] The sealing mechanism includes a plurality of sealing components, which are respectively arranged on the sides of the positioning mold and are used to seal the ports on the sides of the pump body respectively;

[0012] An air filling detection mechanism, which is installed on the leak detection table, is used to abut against one of the ports of the sealed pump body, fill the cavity in the pump body with air, and detect the air pressure of the cavity in the pump body;

[0013] Among them, a sealing component one facing the side of the port two connected in series on the pump body includes a driving member one, an arm plate and an elastic sealing plate. The arm plate is installed at the output end of the driving member one, and the elastic sealing plate is installed on the arm plate. The driving member one drives the arm plate to move so that the elastic sealing plate abuts against the port two connected in series on the pump body and seals.

[0014] Preferably, the leak detection table is also equipped with an adjustment mechanism 1, which includes:

[0015] An adjustment seat, which is installed on the leak detection table;

[0016] An adjusting rod, one end of which is formed with an abutment portion for abutting against the pump body;

[0017] One end of the adjusting rod is threadedly connected to the adjusting seat, and the fixed position of the abutting portion on the adjusting seat is adjusted by rotating the adjusting rod.

[0018] Preferably, the pressing mechanism comprises:

[0019] Driving member four;

[0020] A clamping rod mounted on the output end of the driving member 4;

[0021] Pad four;

[0022] The upper end surface of the pump body is provided with a port five, and the cushion block four is installed in the port five. The driving member four drives the clamping rod to move downward, so that the clamping rod presses against the cushion block four and the port five, thereby sealing the port five and clamping the pump body at the same time.

[0023] Preferably, a second adjustment mechanism is installed above the leak detection table, and the second adjustment mechanism includes:

[0024] Guide rod;

[0025] A fixed seat, which is mounted on the guide rod;

[0026] The fixing seat is provided with an active hole, and the end of the bolt passes through the active hole and is connected to the end of the driving member 4. The front and rear position of the driving member 4 relative to the positioning mold can be adjusted by adjusting the position of the bolt in the active hole.

[0027] Preferably, the second adjustment mechanism further includes:

[0028] A screw rod is installed on the frame and its end is connected to a fixing seat;

[0029] A hand wheel mounted on the end of the screw;

[0030] The position of the driving member 4 is adjusted laterally by rotating the lead screw via the hand wheel.

[0031] Preferably, the second sealing component comprises:

[0032] Driving member 2;

[0033] A sealing seat, which is installed at the output end of the second driving member, and a second installation cavity is formed on the lower end surface of the sealing seat;

[0034] A second cushion block is installed in the second installation cavity;

[0035] The driving member 2 drives the sealing seat to move up and down, so that the cushion block 2 is pressed against the port 3 and sealed.

[0036] Preferably, the second sealing component facing the port on the different planes of the pump body comprises:

[0037] A tooling plate, on which the positioning mold is installed;

[0038] A positioning mandrel, which is passed through the tooling plate, and whose end is placed in port 6 of the pump body and supports the pump body;

[0039] A locking ring fixed on the positioning mandrel;

[0040] A spring, which is sleeved on the positioning mandrel;

[0041] The lower end of the spring abuts against the tooling plate, and the upper end of the spring abuts against the end face of the lock ring. The positioning mandrel is compressed and moves downward to overcome the elastic force of the spring. The positioning mold and the positioning mandrel cooperate to jointly support and seal the pump body ports in different planes.

[0042] Preferably, the second sealing component further comprises a balancing core shaft passing through the tooling plate, the balancing core shaft is also provided with a locking ring and a spring, the lower end of the spring abuts against the tooling plate, and the upper end of the spring abuts against the end face of the locking ring;

[0043] When the pump body is installed on the positioning mold and the positioning core shaft, the upper end surface of the balancing core shaft abuts against the pump body, and cooperates with the positioning mold and the positioning core shaft to support and fix the pump body.

[0044] Preferably, a mounting groove is provided at the upper end of the balancing core shaft, and a cushion block five is installed in the mounting groove. The cushion block five is used to abut against the lower end surface of the pump body.

[0045] A leak detection device, comprising:

[0046] The machine body has two groups of pump body leak detection devices arranged side by side on the machine body for leak detection of the pump body.

[0047] Compared with the prior art, the present invention has the following outstanding and beneficial technical effects:

[0048] 1. The present invention designs a leak detection device, which installs the pump body on the positioning mold, and then uses a clamping mechanism, a sealing mechanism and an inflation detection mechanism to fix and seal the pump body. At the same time, the cavity of the pump body is inflated, and then the pressure of the cavity after pressure maintenance is measured, and the change of air pressure within a certain period of time is measured and compared with the standard value to determine whether the pump body is leaking.

[0049] The overall operation of the leak detection device is controlled mechanically. Manual workers only need to place the pump body onto the positioning mold. The overall detection is convenient, fast and accurate, thus ensuring the qualified rate of the pump body leaving the factory.

[0050] At the same time, the detection environment no longer requires water to assist, saving water resources, while ensuring that the pump body is dry and clean, without the need for water removal treatment, improving the working environment of employees.

[0051] 2. The design of the elastic sealing plate of the present invention abuts against the fixed pump body and can seal the two connected ports at the same time through deformation. The sealing effect is good and will not be affected by the size of the pump body itself or the uneven contact surface, thereby ensuring the accuracy of leak detection.

[0052] 3. The setting of the adjustment mechanism of the present invention can achieve the sealing and inflation of the pump body by the inflation detection mechanism by adjusting the fixed position of the adjustment rod when installing pump bodies of different specifications, thereby improving the overall versatility of the device.

[0053] 4. The setting of the second adjusting mechanism of the present invention can adjust the position of the pressing rod of the pressing mechanism pressing against the pump body, so as to achieve stable pressing and fixing of pump bodies of different specifications.

[0054] 5. The positioning core shaft and the balancing core shaft of the sealing component 2 of the present invention are movably arranged on the tooling plate by means of springs. Due to the uneven surface of the pump body, the surface has a height difference. When the pump body is installed, the spring will enable the positioning core shaft and the balancing core shaft to simultaneously abut against and support the pump body. The height difference is adjusted by the spring so that the pump body can be stably installed and fixed in the leak detection device to ensure the normal progress of the leak detection operation.

[0055] 6. The two sets of leak detection devices of the leak detection equipment of the present invention can perform leak detection operations on two pump bodies at the same time, thereby improving the leak detection rate of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] Figure 1 This is a schematic diagram of the structure of the leak detection equipment according to Example 1 of the present invention.

[0057] Figure 2 This is a schematic diagram of the structure of a pump body fixed in the leak detection device of Example 1 of the present invention.

[0058] Figure 3 This is a schematic structural diagram of a leak detection device according to Example 1 of the present invention.

[0059] Figure 4 This is a schematic diagram of the structure of the pump body of Example 1 of the present invention.

[0060] Figure 5 Schematic diagram of the structure of the inflation detection mechanism of Example 1 of the present invention.

[0061] Figure 6 This is a schematic diagram of the structure of the adjustment mechanism 2 of Example 1 of the present invention.

[0062] Figure 7 This is a schematic diagram of the structure of sealing component 2 of embodiment 1 of the present invention.

[0063] Figure 8 This is a schematic diagram of the structure of the pump body of Example 2 of the present invention.

[0064] Fig. 9 This is a schematic diagram of the structure of the leak detection device of Example 2 of the present invention.

[0065] Fig.10 This is a schematic diagram of the relevant structures of the tooling plate of Example 2 of the present invention.

[0066] Fig.11 This is a schematic structural diagram of the pump body of Example 2 of the present invention installed on the positioning mold.

[0067] Fig.12 This is a schematic diagram of the structure of a pump body fixed in the leak detection device of Example 2 of the present invention.

[0068] Reference numerals:

[0069] 1- body;

[0070] 2- Leak detection table;

[0071] 3- Positioning mold;

[0072] 4- pump body; 41- port one; 42- port two; 43- port three; 44- port four; 45- port five; 45- port six;

[0073] 5- rack;

[0074] 6- Leak detection device;

[0075] 7- Sealing mechanism;

[0076] 100- clamping mechanism; 101- driving member four; 102- clamping rod; 103- cushion block four;

[0077] 200-seal assembly 1; 201-driving member 1; 202-arm plate; 203-elastic sealing plate;

[0078] 300-seal assembly 2; 301-driving member 2; 302-seal seat; 303-installation cavity 2; 304-pad 2; 305-tooling plate; 306-positioning mandrel; 307-balancing mandrel; 308-adjusting plate; 309-spring; 310-locking ring; 311-installation groove; 312-pad 5; 313-guide sleeve; 314-annular boss;

[0079] 400-inflating detection mechanism; 401-driving member three; 402-inflating seat; 403-channel; 404-sealing gasket;

[0080] 500-Airtightness detector;

[0081] 600-adjustment mechanism 1; 601-adjustment seat; 602-adjustment rod; 603-butt portion;

[0082] 700-adjustment mechanism 2; 701-guide rod; 702-fixed seat; 703-movable hole; 704-bolt; 705-screw rod; 706-handwheel. DETAILED DESCRIPTION

[0083] The specific implementation modes of the present invention are further described in detail below with reference to the accompanying drawings.

[0084] Embodiment 1:

[0085] like Figure 1 As shown, a leak detection device comprises a machine body 1, on which two sets of pump body leak detection devices are installed, which can work simultaneously to perform leak detection operations on two pump bodies 4.

[0086] like Figure 2 and Figure 3 As shown, the leakage detection device 6 includes a frame 5, a pressing mechanism 100, a sealing mechanism 7, an inflation detection mechanism 400 and an adjustment mechanism 600; the inflation detection mechanism 400 includes an airtightness detector 500.

[0087] The sealing mechanism 7 includes a sealing component 1 200 and a sealing component 2 300.

[0088] The ports of the pump body 4 mainly include port one 41, port two 42, port three 43, port four 44, and port five 45, and the ports are located on different sides.

[0089] The frame 5 is installed on the body 1, and the bottom of the frame 5 is a leak detection platform. A positioning mold 3 is installed on the leak detection table 2 by screws. The clamping mechanism 100 is installed on the frame 5 above the positioning mold 3; the sealing component 200 is installed on the side of the positioning mold 3; the sealing component 300 is installed on the frame 5 above the positioning mold 3, and is used to compress the pump body 4 and seal the port three 43; the inflation detection mechanism 400 is installed at the rear of the positioning mold 3, and is used to abut the port four 44 of the pump body and seal and inflate; the adjustment mechanism 600 is installed in front of the positioning mold 3.

[0090] The positioning mold 3 cooperates with the pressing mechanism 100 to crimp and fix the pump body on the leak detection platform. The positioning mold 3 and the pressing mechanism 100 are preferably arranged coaxially to ensure the stability of the pump body fixation.

[0091] Combination Figure 3 and Figure 4 , install the port 141 of the pump body downward on the leak detection table 2, insert the positioning mold 3 into the port 141, realize the installation and positioning of the pump body, and at the same time, a sealing ring is also set on the positioning mold 3, which is used to seal the port 141, so that the side wall of the pump body abuts against the adjustment mechanism 1600, and then the inflation detection mechanism 400 works to abut and seal the port 44 of the pump body 4; then the clamping mechanism 100, the sealing component 1200 and the sealing component 2300 abut the corresponding position of the pump body, fix the pump body to the leak detection platform, and seal all the ports, and then the inflation detection mechanism 400 starts to inflate the cavity of the pump body until the set air pressure is reached, stops inflating, enters the pressure holding stage, and the detection port of the airtight detector 500 is connected to the channel, and the airtight detector 500 can detect the air pressure in the cavity and measure the air pressure change in the cavity within the specified time. Determine whether the air pressure is within the specified range, and then determine whether the pump body is leaking.

[0092] The present invention designs a leak detection device, which installs the pump body 4 on the positioning mold 3, and then uses the clamping mechanism 100, the sealing component 1 200, the sealing component 2 300 and the inflation detection mechanism to fix and seal the pump body 4, and inflate the cavity of the pump body 4, and then uses the airtightness detector 500 to measure the pressure of the cavity after pressure maintenance, measures the change of air pressure within a certain period of time, and compares it with the standard value to determine whether the pump body is leaking.

[0093] The overall operation of the leak detection device is controlled mechanically, and the manual operation only requires the pump body 4 to be placed on the positioning mold 3. The overall detection is convenient, fast and accurate, thereby ensuring the qualified rate of the pump body leaving the factory.

[0094] At the same time, the detection environment no longer requires water to assist, saving water resources, while ensuring that the pump body is dry and clean, without the need for water removal treatment, improving the working environment of employees.

[0095] Further settings, such as Figure 3 As shown, the sealing assembly 200 facing the side of the row port 2 (42) on the pump body 4 includes a driving member 201, an arm plate 202 and an elastic sealing plate 203. The driving member 201 is installed on the side plate of the frame 5, the arm plate 202 is installed on the output end of the driving member 201, and the elastic sealing plate 203 is installed on the arm plate 202. The driving member 201 drives the arm plate 202 to move, so that the elastic sealing plate 203 abuts against the side of the pump body 4 and seals the row port 2 42 at the same time.

[0096] The design of the elastic sealing plate 203 of the present invention abuts against the fixed pump body 4 and can simultaneously seal the two connected ports 42 through deformation, with good sealing effect, which will not be affected by the size of the pump body itself or the uneven contact surface, thereby ensuring the accuracy of leak detection.

[0097] Compared with the existing sealing method of the convex column sealing ring, the entire plane of the port 2 42 of the solution of the present application is fitted on the elastic sealing plate 203 to achieve sealing, with a large sealing area and a better sealing effect.

[0098] The positioning die 3 is fixed by two bolts, and the disassembly is convenient and adjustable. At the same time, a cushion block 1 is installed on the upper end of the positioning die 3, and the cushion block 1 abuts against the end surface inside the pump body. The cushion block 1 can be made of rubber, which mainly plays a buffering role to protect the integrity of the pump body 4 and avoid damage to the pump body due to collision.

[0099] The pump body 4 of this embodiment is as shown in FIG. Figure 4 shown.

[0100] like Figure 5 As shown, the inflation detection mechanism 400 includes an airtightness detector 500, a driving member 3 401, an inflation seat 402 and a sealing gasket 404;

[0101] The driving member 3 401 is installed on the frame 5, the inflation seat 402 is installed at the output end of the driving member 3 401, and a channel 403 is opened inside the inflation seat 402; the sealing gasket 404 is installed at the end of the inflation seat 402; the airtightness detector 500 is connected to the channel 403 through a conduit.

[0102] The driving member 3 401 drives the inflation seat 402 to move, so that the sealing gasket 404 abuts against the port 44 of the pump body and is deformed under pressure to achieve the purpose of sealing the port 44.

[0103] The airtightness detector 500 works by inflating the cavity through the conduit and the channel 403, and then the airtightness detector 500 starts the detection work.

[0104] like Figure 3As shown, an adjustment mechanism 600 is also installed on the leak detection table 2, and the adjustment mechanism 600 includes: an adjustment seat 601, which is installed on the leak detection table 2; an adjustment rod 602, one end of which has a formed abutment 603 for abutting the pump body 4; one end of the adjustment rod 602 is threadedly connected to the adjustment seat 601, and the fixed position of the abutment 603 on the adjustment seat 601 is adjusted by rotating the adjustment rod 602.

[0105] The setting of the adjustment mechanism 600 of the present invention can achieve sealing and inflation of the pump body by the inflation detection mechanism 400 by adjusting the fixed position of the adjustment rod 602 when installing pump bodies of different specifications, thereby improving the overall versatility of the device.

[0106] like Figure 3 and Figure 6 As shown, in order to cooperate with the above-mentioned adjustment mechanism 1 600 and improve the versatility of the device, an adjustment mechanism 2 700 is installed on the frame 5 above the leak detection platform. The adjustment mechanism 2 700 mainly includes two guide rods 701 parallel to each other, and a fixed seat 702 is installed on the guide rod 701. The fixed seat 702 can move on the guide rod 701, and the fixed seat 702 is locked by screws. A movable hole 703 is opened on the fixed seat 702. The end of the bolt 704 passes through the movable hole 703 to movably install the clamping mechanism 100 and the sealing component 2 300 on the fixed seat 702. By adjusting the position of the bolt 704 in the movable hole 703, the front and rear positions of the clamping mechanism 100 and the sealing component 2 300 relative to the positioning mold 3 can be adjusted, so as to cooperate with the detection of various types of pump bodies and improve versatility.

[0107] The second adjustment mechanism 700 also includes: a screw rod 705, a hand wheel 706 and a plane bearing. The screw rod 705 is installed on the frame 5, and the end is connected to the fixed seat 702; the hand wheel 706 is installed at the end of the screw rod 705; the connection between the screw rod 705 and the frame 5 is realized by a plane bearing, which can reduce friction, reduce wear and ensure service life.

[0108] The setting of the screw rod 705 is mainly used to adjust the lateral position of the clamping mechanism 100 and the sealing component 2 300 relative to the positioning mold 3 to ensure the accuracy of the fixed position.

[0109] Combination Figure 1 and Figure 3 The clamping mechanism 100 includes: a driving member 101; a clamping rod 102, which is installed at the output end of the driving member 101; a cushion block 103, and the cushion block 103 is made of rubber;

[0110] The upper end surface of the pump body 4 has a port five 45, and the gasket four 103 is installed in the port five 45. Then the driving member four 101 drives the clamping rod 102 to move downward, so that the clamping rod 102 presses the gasket four 103 and the port five 45. The gasket four 103 is deformed by pressure, and the port five 45 is sealed while pressing the pump body 4 to prevent the pump body 4 from shaking and affecting the leak detection operation.

[0111] like Figure 7 As shown, the sealing assembly 300 includes a driving member 301, a sealing seat 302 and a gasket 304. The sealing seat 302 is installed at the output end of the driving member 301, and the lower end surface of the sealing seat 302 is formed with a mounting cavity 303, and the gasket 304 is installed and fixed in the mounting cavity 303.

[0112] The second driving member 301 drives the sealing seat 302 to move up and down, so that the second cushion block 304 presses against the third port 43 and seals, thereby fixing the pump body and sealing the third port 43.

[0113] The above-mentioned elastic sealing plate, gasket and other components are provided mainly to protect the pump body and prevent the pump body from being damaged due to collision.

[0114] Embodiment 2:

[0115] The technical solution of this embodiment is substantially the same as that of embodiment 1, because the pump body is of different types. Figure 8 shown.

[0116] Therefore, a new sealing component 2300 is designed for this pump body model, and the specific plan is as follows.

[0117] like Figure 9-12 As shown, the second sealing assembly 300 includes a tooling plate 305 , a positioning mandrel 306 , a balancing mandrel 307 , an adjustment plate 308 , a plurality of springs 309 and a locking ring 310 cooperating with the springs 309 .

[0118] The tooling plate 305 is connected to the test table by a bayonet pin, which is convenient for removal or installation. The positioning mold 3 is installed on the tooling plate 305. Due to the difference in the pump body, the structure of the positioning mold 3 is slightly different. Compared with the embodiment 1, the positioning mold 3 has a higher overall height.

[0119] The positioning die 3 can be slightly moved on the tooling plate 305 to cooperate with the positioning mandrel 306 and the balancing mandrel 307 so that the pump body will not be unable to be installed due to size error.

[0120] At the same time, the channel 403 can be opened in the positioning mold 3 to inflate the pump body through the positioning mold 3.

[0121] The positioning mandrel 306 and the balancing mandrel 307 are installed on the side of the positioning mold 3. The installation method is to install two guide sleeves 313 on the tooling plate 305. The positioning mandrel 306 and the balancing mandrel 307 are respectively inserted into different guide sleeves 313. The adjustment plate 308 is set on the tooling plate 305, and the lower ends of the positioning mandrel 306 and the balancing mandrel 307 are movably inserted on the adjustment plate 308; the spring 309 is respectively sleeved on the positioning mandrel 306 and the balancing mandrel 307, and the lower ends of the spring 309 abut against the adjustment plate 308. A locking ring 310 is also installed on the positioning mandrel 306 and the balancing mandrel 307, and the upper end of the spring 309 abuts against the locking ring 310, so that the downward movement of the positioning mandrel 306 and the balancing mandrel 307 can compress the spring 309, and the locking of the spring 309 and the positioning mandrel is achieved by screws.

[0122] The structure of the locking ring 310 is an arc shape, close to a circle, and a bolt is installed at the fracture. The bolt is rotated to reduce the diameter of the locking ring 310 so as to lock it on the positioning core shaft.

[0123] The design of the locking ring 310 is convenient for assembly and later maintenance and replacement.

[0124] At the same time, the elastic force of the spring can be adjusted by adjusting the fixed position of the lock ring 310, so that the positioning core shaft 306 and the balancing core shaft 307 support the balance of the pump body 4, ensuring that the pump body is fixed horizontally and ensuring the accuracy and sealing of the seal.

[0125] When installing the pump body, the pump body is first installed on the positioning mold 3 for preliminary positioning. At the same time, the upper end of the positioning core shaft 306 is inserted into the port 6 46 of the pump body, and the positioning mold 3 is combined to realize the installation positioning of the pump body.

[0126] like Fig.10 As shown, an annular boss 314 is formed on the outer wall of the upper end of the positioning mandrel 306, and a sealing ring is arranged on the annular boss 314. When the upper end of the positioning mandrel 306 is inserted into the port 6 46 of the pump body, the end face of the port 6 46 will abut against the annular boss 314, which is to ensure the sealing effect on the one hand and to support the pump body on the other hand; the upper end of the balancing mandrel 307 is provided with a mounting groove 311, and a cushion block 5 312 is installed in the mounting groove 311, and the cushion block 5 312 is used to abut against the lower end face of the pump body 4. The cushion block 5 312 is made of rubber to achieve flexible abutment with the pump body and protect the pump body.

[0127] The positioning core shaft 306 and the balancing core shaft 307 of the sealing component 2 300 of the present invention are movably set on the tooling plate 305 by means of a spring 309. Due to the uneven surface of the pump body, the surface has a height difference. When the pump body is installed, the spring 309 will enable the positioning core shaft 306 and the balancing core shaft 307 to abut against the pump body. The spring 309 is used to compensate for the height difference, so that the pump body can be stably installed and fixed in the leak detection device, ensuring the normal progress of the leak detection operation.

[0128] The positioning core shaft 306, the balancing core shaft 307 and the positioning mold 3 jointly support the pump body 4 to form a three-point support, thereby ensuring the stability of the pump body 4 and also ensuring the horizontality of the pump body 4.

[0129] The basic principles and main features of the present invention and the advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A pump body leak detection device, characterized in that: include: Leak detection table; A positioning die, which is installed on the leak detection table and is used for installing the pump body and sealing port 1 on the lower side of the pump body; A pressing mechanism, which is arranged above the positioning die and is used to press against the upper end surface of the pump body; The sealing mechanism includes a plurality of sealing components, which are respectively arranged on the sides of the positioning mold and are used to seal the ports on the sides of the pump body respectively; An air filling detection mechanism, which is installed on the leak detection table, is used to abut against one of the ports of the sealed pump body, fill the cavity in the pump body with air, and detect the air pressure of the cavity in the pump body; Wherein, the sealing assembly 1 on the side of the port 2 connected to the pump body includes a driving member 1, an arm plate and an elastic sealing plate, the arm plate is installed on the output end of the driving member 1, and the elastic sealing plate is installed on the arm plate; An adjustment mechanism 1 is installed on the leak detection table, and the adjustment mechanism 1 includes: An adjustment seat, which is installed on the leak detection table; An adjusting rod, one end of which is formed with an abutment portion for abutting against the pump body; One end of the adjusting rod is threadedly connected to the adjusting seat; The clamping mechanism includes: Driving member four; A clamping rod mounted on the output end of the driving member 4; Pad four; The upper end surface of the pump body is provided with a port five, a cushion block four is installed in the port five, and a driving member four drives the clamping rod to move downward, so that the clamping rod presses against the cushion block four and the port five, thereby sealing the port five and simultaneously clamping the pump body; An adjustment mechanism 2 is installed above the leak detection table, and the adjustment mechanism 2 includes: Guide rod; A fixed seat, which is mounted on the guide rod; A movable hole is provided on the fixing seat, and the end of the bolt passes through the movable hole and is connected to the end of the driving member 4. By adjusting the position of the bolt in the movable hole, the front and rear position of the driving member 4 relative to the positioning mold can be adjusted; A screw rod is installed on the frame and its end is connected to a fixing seat; A hand wheel mounted on the end of the screw; The position of the driving member 4 is adjusted laterally by rotating the lead screw via the hand wheel.

2. The pump body leakage detection device according to claim 1, characterized in that: The sealing assembly 2 on the side facing the port 3 on the pump body includes: Driving member 2; A sealing seat, which is installed at the output end of the second driving member, and a second installation cavity is formed on the lower end surface of the sealing seat; A second cushion block is installed in the second installation cavity; The driving member 2 drives the sealing seat to move up and down, so that the cushion block 2 is pressed against the port 3 and sealed.

3. The pump body leakage detection device according to claim 1, characterized in that: The sealing assembly 2 on the side of the port facing the different planes on the pump body includes: A tooling plate, on which a positioning die is mounted; A positioning mandrel, which is passed through the tooling plate and has its end placed in port 6 of the pump body and supports the pump body; A locking ring fixed on the positioning mandrel; A spring, which is sleeved on the positioning mandrel; The lower end of the spring abuts against the tooling plate, and the upper end of the spring abuts against the end face of the lock ring. The positioning mandrel is compressed and moves downward to overcome the elastic force of the spring. The positioning mold and the positioning mandrel cooperate to jointly support and seal the pump body ports in different planes.

4. The pump body leakage detection device according to claim 3, characterized in that: The second sealing component also includes a balancing core shaft passing through the tooling plate, and a locking ring and a spring are also arranged on the balancing core shaft, the lower end of the spring abuts against the tooling plate, and the upper end of the spring abuts against the end face of the locking ring; When the pump body is installed on the positioning mold and the positioning core shaft, the upper end surface of the balancing core shaft abuts against the pump body, and cooperates with the positioning mold and the positioning core shaft to support and fix the pump body.

5. The pump body leakage detection device according to claim 4, characterized in that: An installation groove is provided at the upper end of the balancing core shaft, and a cushion block 5 is installed in the installation groove. The cushion block 5 is used to abut against the lower end surface of the pump body.

6. The pump leak detection device according to claim 1, characterized in that: The driving member 1 drives the arm plate to move, so that the elastic sealing plate abuts against the port 2 of the pump body and seals; The fixed position of the abutment portion on the adjustment seat is adjusted by rotating the adjustment rod.

7. A leak detection device, characterized in that: include: The machine body has two sets of pump body leak detection devices as described in any one of claims 1 to 6 arranged side by side on the machine body for leak detection of the pump body.

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