Valve element air tightness detection device

Abstract

The utility model relates to the technical field of valve element air tightness detection, and discloses a valve element air tightness detection device, which comprises a main body frame, a working table and a fixing mechanism, the fixing mechanism comprises guide rails symmetrically arranged at the upper end of the working table, the upper ends of the guide rails are connected with a detection table in a sliding manner, and the upper end of the detection table is fixedly provided with a fixing assembly. The fixing assembly comprises a mounting block slidably mounted at the upper end of the detection table, and a threaded fixing block is arranged on the side, away from the connecting block, of the mounting block. The driving motor drives the two-way threaded rod to rotate, the connecting block drives the mounting block to move and drives the threaded fixing block to move towards the valve element, then the air cylinder drives the connector to move towards the upper end of the valve element, pressure is applied to the valve element along with the connector, and the elastic sealing piece is extruded for sealing. And meanwhile, the threaded fixing block can be matched with the spring to slide on the fixing rod, and the problem that a valve element with a threaded end is difficult to fix through an existing valve seat is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve core air tightness detection technical field, concretely is a kind of valve core air tightness detection device. BACKGROUND

[0002] Valve core air tightness detection device is a kind of mechanical equipment for detecting the air tightness of hydraulic valve core, the air tightness of valve core is detected by injecting gas into the inside of valve core.The existing valve core air tightness detection device has the following technical defects: the existing air tightness detection device is fixed by placing the one end of hydraulic valve core on valve seat, then the joint is pressed on the other end of valve core by air cylinder, and the gas is injected into the inside of valve core by gas injection hole, and the gas probe is used to detect whether there is gas leakage in valve core, since the one end of part of hydraulic valve core is threaded, the existing valve seat is difficult to fix the valve core with threaded end, too tight fixation can cause damage to valve core threaded end, too loose fixation can cause poor contact between valve core and valve seat, thereby affecting the detection accuracy of the air tightness of hydraulic valve core, and bringing inconvenience to daily use. SUMMARY

[0003] The utility model aims at providing a kind of valve core air tightness detection device to solve the problems raised in the background art.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of valve core air tightness detection device, including main body frame, the inside of main body frame is equipped with workbench, the upper end of workbench is fixedly installed with support column, the side of main body frame away from support column is equipped with control assembly, the upper end of support column is fixedly installed with mounting plate, the upper end of mounting plate is fixedly installed with air cylinder, the upper end of workbench is also equipped with fixed mechanism;

[0005] The fixed mechanism includes guide rail symmetrically installed on the upper end of workbench, detection table is slidably connected on the upper end of guide rail, and fixed assembly is fixedly installed on the upper end of detection table.

[0006] The fixed assembly includes mounting block slidably installed on the upper end of detection table, and threaded fixed block is slidably installed in the inside of mounting block.

[0007] Further, the fixed assembly further includes mounting frame fixedly installed on the upper end of detection table, drive motor is fixedly installed on one side of mounting frame, the output end of drive motor is fixedly connected with bidirectional screw rod, the outside of bidirectional screw rod is threadedly connected with connecting block, fixed rod is fixedly installed in the inside of mounting block, and spring is sleeved on the outside of fixed rod.

[0008] Further, the double -threaded rod is installed in the installation frame, the connecting block is symmetrically arranged on the outer side of the double -threaded rod, the connecting block is fixedly connected with the side of the mounting block away from the threaded fixed block, the fixed rod is uniformly distributed in the mounting block, the spring is symmetrically arranged about the threaded connecting block, and the threaded fixed block is in sliding connection with the fixed rod.

[0009] Further, the detection table is provided with a sealing groove in the upper end, and an elastic sealing element is arranged in the sealing groove.

[0010] Further, the upper end of the workbench is symmetrically provided with an auxiliary mechanism, the auxiliary mechanism comprises a supporting seat fixedly installed on the upper end of the workbench, a hydraulic push rod is fixedly installed on the upper end of the supporting seat, a clamping block is fixedly connected to the working end of the hydraulic push rod, and the side of the clamping block away from the hydraulic push rod is arranged in a circular arc shape.

[0011] Further, the detection table is provided with a valve core, the valve core is provided with an external thread in the bottom end, the valve core is provided with a back plate on one side, the back plate is fixedly installed on the outer side of the supporting column, and a gas detector is fixedly installed on the side of the back plate close to the valve core.

[0012] Further, the supporting column is arranged in a circumferential array about the cylinder, a connecting head is fixedly installed on the working end of the cylinder, the connecting head is located between the valve core and the cylinder, and a gas injection hole is formed in the connecting head.

[0013] Compared with the prior art, the valve core gas tightness detection device has the following beneficial effects:

[0014] The valve core gas tightness detection device is characterized in that the valve core is placed on the upper end of the detection table, then the double -threaded rod is driven to rotate by the driving motor, the mounting block is driven to move by the connecting block, the threaded fixed block is driven to move towards the valve core, the connecting head is driven to tend to the upper end of the valve core by the cylinder, the pressure on the valve core is applied by the connecting head and the elastic sealing element is extruded to cooperate with the sealing groove to seal, the threaded fixed block can slide on the fixed rod with the cooperation of the spring, and the valve core is fixed by the auxiliary mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic view of the main structure of the utility model;

[0016] Figure 2 It is a schematic view of the fixed mechanism structure of the utility model;

[0017] Figure 3The utility model discloses a detection table structure schematic view.

[0018] Figure 4 The utility model discloses a fixed assembly structure schematic view.

[0019] Figure 5 The utility model discloses an auxiliary mechanism structure schematic view.

[0020] Figure 6 The utility model discloses a valve core fixed time structure schematic view.

[0021] Figure 7 The utility model discloses a gas injection hole schematic view.

[0022] In the drawing: 1, main body frame;2, control assembly;3, workbench;4, fixed mechanism;41, guide rail;42, detection table;421, sealing groove;422, elastic sealing element;43, fixed assembly;431, drive motor;432, mounting frame;433, two -way threaded rod;434, connecting block;435, mounting block;436, threaded fixed block;437, fixed link;438, spring;5, support column;6, mounting plate;7, air cylinder;71, connecting head;711, gas injection hole;8, auxiliary mechanism;81, support seat;82, hydraulic push rod;83, clamping block;9, backboard;10, gas detector;11, valve core;111, external thread. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the utility model.

[0024] EMBODIMENT

[0025] Please refer to Figure 1 -7 shows a valve core 11 air tightness detection device, including main body frame 1, the inside of the main body frame 1 is equipped with workbench 3, the workbench 3 upper end fixed installation has support column 5, the main body frame 1 away from support column 5 one side is equipped with control assembly 2, the support column 5 upper end fixed installation has mounting plate 6, the mounting plate 6 upper end fixed installation has air cylinder 7, the workbench 3 upper end is also equipped with fixed mechanism 4;

[0026] The fixed mechanism 4 includes the guide rail 41 that is symmetrically installed on the workbench 3 upper end, the guide rail 41 upper end sliding connection has detection table 42, the detection table 42 upper end fixed installation has fixed assembly 43;

[0027] The fixing assembly 43 comprises a mounting block 435 slidingly mounted on the upper end of the detection table 42, and a threaded fixing block 436 slidingly mounted in the mounting block 435, which is used for fixing the valve core 11.

[0028] Further, the fixing assembly 43 further comprises a mounting frame 432 fixedly mounted on the upper end of the detection table 42, and a driving motor 431 fixedly mounted on one side of the mounting frame 432, and a bidirectional threaded rod 433 fixedly connected to the output end of the driving motor 431, and a connecting block 434 threadedly connected to the outer side of the bidirectional threaded rod 433, and a fixing rod 437 fixedly mounted in the mounting block 435, and a spring 438 sleeved on the outer side of the fixing rod 437.

[0029] Further, the bidirectional threaded rod 433 is rotationally mounted in the mounting frame 432 away from the driving motor 431, the connecting block 434 is symmetrically arranged in two groups on the outer side of the bidirectional threaded rod 433, the connecting block 434 is fixedly connected to the side of the mounting block 435 away from the threaded fixing block 436, the fixing rod 437 is uniformly distributed in the mounting block 435, the spring 438 is symmetrically arranged about the threaded connecting block 434, and the threaded fixing block 436 is slidingly connected to the fixing rod 437.

[0030] Further, the upper end of the detection table 42 is provided with a sealing groove 421, and the sealing groove 421 is provided with an elastic sealing element 422, the size of the elastic sealing element 422 is slightly smaller than that of the sealing groove 421, the elastic sealing element 422 can be deformed under stress and cooperate with the sealing groove 421 to seal.

[0031] Further, the upper end of the workbench 3 is symmetrically provided with an auxiliary mechanism 8, the auxiliary mechanism 8 comprises a support seat 81 fixedly mounted on the upper end of the workbench 3, a hydraulic push rod 82 fixedly mounted on the upper end of the support seat 81, a clamping block 83 fixedly connected to the working end of the hydraulic push rod 82, and the side of the clamping block 83 away from the hydraulic push rod 82 is arranged in a circular arc shape.

[0032] Further, the detection table 42 is provided with the valve core 11, the bottom end of the valve core 11 is provided with an external thread 111, one side of the valve core 11 is provided with the back plate 9, the back plate 9 is fixedly mounted on the outer side of the support column 5, the side of the back plate 9 close to the valve core 11 is fixedly mounted with the gas detector 10, and the gas detector 10 is used for detecting whether the valve core 11 has gas leakage.

[0033] Further, the support column 5 is arranged in a circular array about the air cylinder 7, the working end of the air cylinder 7 is fixedly mounted with a connecting head 71, the connecting head 71 is located between the valve core 11 and the air cylinder 7, and the connecting head 71 is provided with a gas injection hole 711.

[0034] Further, the support column 5 is arranged in a circumferential array relative to the cylinder 7, a connecting head 71 is fixedly installed at a working end of the cylinder 7, and the connecting head 71 is located between the valve core 11 and the cylinder 7.

[0035] The specific use mode and role of the embodiment are as follows:

[0036] In use, first, a worker sets parameters on the control assembly 2 according to required parameters, then places the valve core 11 above the detection table 42, drives the bidirectional threaded rod 433 to rotate through the driving motor 431, moves the connecting block 434 through the bidirectional threaded rod 433, moves the mounting block 435 through the two connecting blocks 434, then fixes the bottom end of the valve core 11 through the threaded fixing block 436, and fixes the valve core 11 through the threaded connection between the threaded connecting block 436 and the external thread 111 at the bottom end of the valve core 11.

[0037] Further, the cylinder 7 is started, the connecting head 71 is pushed to move towards the upper end of the valve core 11 through the working end of the cylinder 7, a certain pressure is continuously applied to the valve core 11 when the connecting head 71 contacts the valve core 11, the valve core 11 is driven to extrude the elastic sealing element 422 to make it uniformly filled in the sealing groove 421, the bottom end of the valve core 11 is sealed, the threaded fixing block 436 is compressed through the movement of the valve core 11, and the threaded fixing block 436 slides outside the fixing rod 437, and the threaded fixing block 436 is adjusted while the valve core 11 moves.

[0038] Further, the valve core 11 is injected with gas through the gas injection hole 711 arranged in the connecting head 71, then the gas detector 10 is used to detect whether the valve core 11 leaks gas, the length of time that the valve core 11 maintains at a specified pressure, and whether the pressure is stable, when the gas detector 10 detects that the valve core 11 leaks gas, the detected information is transmitted to the control assembly 2 for data analysis, and the detection value is displayed on the display panel and data comparison is performed, the valve core 11 that fails to pass the detection needs to be repaired and replaced by the worker, and then the air tightness of the subsequent valve core 11 can be detected.

[0039] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A valve core airtightness detection device, comprising a main body frame (1), the inside of the main body frame (1) is provided with a workbench (3), the upper end of the workbench (3) is fixedly installed with a supporting column (5), the side of the main body frame (1) away from the supporting column (5) is provided with a control assembly (2), the upper end of the supporting column (5) is fixedly installed with a mounting plate (6), and the upper end of the mounting plate (6) is fixedly installed with a pneumatic cylinder (7), characterized in that, The upper end of the workbench (3) is also provided with a fixing mechanism (4), wherein: The fixing mechanism (4) comprises guide rails (41) symmetrically mounted on the upper end of the workbench (3), a detection table (42) slidably connected to the upper end of the guide rail (41), and a fixing assembly (43) fixedly installed on the upper end of the detection table (42). The fixing assembly (43) comprises an installation block (435) slidably installed on the upper end of the detection table (42), and a threaded fixing block (436) slidably installed in the installation block (435).

2. The valve core air tightness detection device according to claim 1, characterized in that: The fixing assembly (43) further comprises an installation frame (432) fixedly installed on the upper end of the detection table (42), a drive motor (431) fixedly installed on one side of the installation frame (432), a bidirectional threaded rod (433) fixedly connected to the output end of the drive motor (431), a connecting block (434) threadedly connected to the outer side of the bidirectional threaded rod (433), and a fixed rod (437) fixedly installed in the installation block (435), wherein a spring (438) is sleeved on the outer side of the fixed rod (437).

3. The valve core air tightness detection device according to claim 2, characterized in that: The bidirectional threaded rod (433) is rotatably installed in the installation frame (432) away from the drive motor (431), the connecting block (434) is symmetrically arranged on the outer side of the bidirectional threaded rod (433), one end of the connecting block (434) away from the bidirectional threaded rod (433) is fixedly connected to one side of the installation block (435) away from the threaded fixing block (436), the fixed rods (437) are uniformly distributed in the installation block (435), the springs (438) are symmetrically arranged about the threaded connecting block (434), and the threaded fixing block (436) is slidably connected to the fixed rod (437).

4. The valve core air tightness detection device according to claim 2, characterized in that: A sealing groove (421) is formed in the upper end of the detection table (42), and an elastic sealing element (422) is arranged in the sealing groove (421).

5. The valve core air tightness detection device according to claim 1, characterized in that: The upper end of the workbench (3) is symmetrically provided with an auxiliary mechanism (8), the auxiliary mechanism (8) comprises a support seat (81) fixedly installed on the upper end of the workbench (3), a hydraulic push rod (82) fixedly installed on the upper end of the support seat (81), and a clamping block (83) fixedly connected to the working end of the hydraulic push rod (82), wherein one side of the clamping block (83) away from the hydraulic push rod (82) is arranged in a circular arc shape.

6. The valve core air tightness detection device according to claim 4, characterized in that: A valve core (11) is arranged on the detection table (42), an outer thread (111) is arranged at the bottom end of the valve core (11), a back plate (9) is arranged on one side of the valve core (11), the back plate (9) is fixedly installed on the outer side of the support column (5), and a gas detector (10) is fixedly installed on the side of the back plate (9) close to the valve core (11).

7. The valve core air tightness detection device according to claim 6, characterized in that: The support columns (5) are arranged in a circumferential array about the air cylinder (7), a connecting head (71) is fixedly installed at the working end of the air cylinder (7), the connecting head (71) is located between the valve core (11) and the air cylinder (7), and a gas injection hole (711) is formed in the connecting head (71).

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