CN112985802A - Valve detection machine - Google Patents

Abstract

The invention discloses a valve detection machine, which comprises: the automatic feeding device comprises a machine table, a feeding mechanism, a positioning mechanism, a gas conveying mechanism, a gas blocking mechanism, a discharging mechanism and a material moving mechanism, wherein the machine table is provided with a working table; the positioning mechanism comprises a rotatable fixing component which can move close to or far away from the workbench; the gas transmission mechanism comprises a gas transmission pipe, the gas transmission pipe can move close to or far away from the workbench, and the gas transmission pipe is connected with a detection instrument; the air blocking mechanism comprises a plug which can move close to or far away from the workbench; the blanking mechanism is arranged on the machine table; move material mechanism and include frock clamp, frock clamp can be at feed mechanism, workstation and unloading mechanism between reciprocating motion. The valve to be tested can be fully automatically fed, detected and discharged under the combined action of the positioning mechanism, the gas transmission mechanism and the gas blocking mechanism. The full-automatic operation has the advantage of high efficiency, and can effectively save manpower and material resources.

Description

Valve detection machine

Technical Field

The invention relates to the field of valve production, in particular to a valve detection machine.

Background

It is known that at the end of the production process of valves, in particular gas valves, it is necessary to perform various numerical tests on the produced valves, such as airtightness test and flow rate test. At present, the valve is mainly detected manually by conveying gas into the valve, detecting the gas by a detector, observing the detector manually, judging a detection result, and manually screening the valve according to the detection result. However, the manual processing method has the disadvantages of low efficiency and high manpower and material resources. Moreover, the manual detection may cause a human error, which may reduce the yield.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a valve detection machine which can perform detection fully automatically.

The valve detection machine according to the embodiment of the first aspect of the invention comprises: the automatic feeding device comprises a machine table, a feeding mechanism, a positioning mechanism, a gas conveying mechanism, a gas blocking mechanism, a discharging mechanism and a material moving mechanism, wherein the machine table is provided with a working table; the feeding mechanism is arranged on the machine table; the material moving mechanism is arranged on the machine table and comprises a tool clamp, and the tool clamp can receive a valve from the feeding mechanism and drive the valve to move; the positioning mechanism is arranged on the machine table and comprises a rotatable fixing component, and the fixing component can fix the valve; the gas transmission mechanism is arranged on the machine table and comprises a gas transmission pipe, the gas transmission pipe can transmit gas to the valve, and the gas transmission pipe is connected with a detection instrument; the air blocking mechanism is arranged on the machine table and comprises a plug, and the plug can block an air outlet of the valve; the blanking mechanism is arranged on the machine table.

The valve detection machine provided by the embodiment of the invention at least has the following beneficial effects: after the feeding mechanism carries out the material loading, move material mechanism and can transport the valve utensil that awaits measuring to the workstation on. And then, the positioning mechanism drives the fixing component to move close to the workbench, and the valve core of the valve to be tested is clamped by the fixing component. The gas transmission mechanism drives the gas transmission pipe to move close to the workbench, and the gas transmission pipe is connected with the gas inlet of the valve to be tested. Meanwhile, the air blocking mechanism drives the plug to move to block the air outlet of the valve to be tested. Subsequently, the gas transmission pipe transmits gas to the valve to be detected, and the fixed component drives the valve rod to rotate, so that the gas transmission and the detection of numerical values such as gas tightness or flow of the valve to be detected by using a detection instrument can be realized. After detection, the gas pipe and the plug move away from the workbench, and the material moving mechanism drives the valve to be detected to move to the blanking mechanism for blanking operation.

The material moving mechanism drives the valve to be tested to move among the feeding mechanism, the workbench and the discharging mechanism, and the valve to be tested can be fully automatically fed, detected and discharged under the combined action of the positioning mechanism, the gas transmission mechanism and the gas blocking mechanism. The full-automatic operation has the advantage of high efficiency, and can effectively save manpower and material resources. Meanwhile, the method also has the advantages of high accuracy and high yield through mechanical processing.

According to some embodiments of the invention, the feeding mechanism comprises a feeding rail, a direct vibration driver is arranged on the feeding rail, a material taking assembly is arranged at the end part of the feeding rail, and the tool clamp can move close to the material taking assembly.

According to some embodiments of the invention, a material blocking assembly is arranged at one end of the feeding track close to the material taking assembly.

According to some embodiments of the present invention, the positioning mechanism includes a displacement component and a rotation component, the rotation component is disposed on the displacement component, the displacement component can drive the rotation component to move close to the working platform, and the rotation component is connected to the fixing component and can drive the fixing component to rotate.

According to some embodiments of the invention, the gas transmission mechanism comprises a mounting seat positioned above the workbench, the mounting seat is connected with a lifting cylinder for driving the mounting seat to lift, and the gas transmission pipe is arranged on the mounting seat.

According to some embodiments of the invention, the mounting base is provided with an air valve, and the air valve is connected with the air delivery pipe.

According to some embodiments of the invention, the air blocking mechanism comprises a telescopic cylinder arranged on the machine table, and the telescopic cylinder is connected with the plug and can drive the plug to move close to the workbench.

According to some embodiments of the invention, the blanking mechanism comprises a conveyor belt, a blanking slideway and a discharging slideway, the blanking slideway and the discharging slideway are both configured obliquely downwards, the conveyor belt is located below the blanking slideway, and the material moving mechanism can clamp a workpiece and drive the workpiece to move to the blanking slideway or the discharging slideway.

According to some embodiments of the invention, the material moving mechanism comprises a material moving rail, and a support seat is arranged on the material moving rail; the material moving device is characterized in that a first material moving assembly and a second material moving assembly are arranged on the supporting seat, the first material moving assembly and the second material moving assembly are connected with the tool clamp, and the material moving track, the first material moving assembly and the second material moving assembly can be matched to drive the tool clamp to move in a three-axis mode.

According to some embodiments of the invention, some or all of the work table, the feeding mechanism and the positioning mechanism are provided with sensing mechanisms.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic view of a valve inspection machine according to an embodiment of the present invention;

FIG. 2 is a schematic view of a feed mechanism of the valve detection machine shown in FIG. 1;

FIG. 3 is an enlarged schematic view at A shown in FIG. 2;

FIG. 4 is a schematic view of the table and associated mechanisms of the valve testing machine shown in FIG. 1;

FIG. 5 is an enlarged schematic view of FIG. 4 at B;

FIG. 6 is a schematic view of a material moving mechanism of the valve detecting machine shown in FIG. 1;

FIG. 7 is a schematic view of a blanking mechanism of the valve detecting machine shown in FIG. 1;

fig. 8 is an enlarged schematic view of fig. 7 at C.

Reference numerals: 100 is a machine platform, 130 is a gas tank;

200 is a feeding mechanism, 230 is a material taking assembly, 233 is a first material taking cylinder, 235 is a second material taking cylinder, 237 is a material taking clamping jaw, 238 is a first probe, 250 is a feeding rail, 255 is a chute, 270 is a direct vibration driver, 290 is a material blocking assembly, 291 is a material blocking cylinder, and 295 is a material blocking block;

300 is a material moving mechanism, 310 is a supporting seat, 320 is a first material moving component, 330 is a second material moving component, 335 is a supporting plate, 340 is a tool clamp, 370 is a material moving track, 375 is a material moving driving component;

400 is a detecting instrument;

500 is a gas transmission mechanism, 505 is a mounting seat, 510 is a lifting cylinder, 520 is a gas valve, 550 is a gas transmission pipe, and 555 is a sealing joint;

600 is a positioning mechanism, 610 is a displacement component, 620 is a rotating component, and 630 is a fixed component;

700 is a workbench, and 750 is a second probe;

800 is a gas blocking mechanism, 850 is a telescopic cylinder, and 870 is a plug;

900 is a blanking mechanism, 910 is a control button, 920 is a blanking slideway, 930 is a blanking port, 940 is a discharging slideway, and 950 is a conveyor belt.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1, a valve inspection machine includes: the automatic material feeding device comprises a machine table 100, a feeding mechanism 200, a positioning mechanism 600, a gas transmission mechanism 500, a gas blocking mechanism 800, a discharging mechanism 900 and a material moving mechanism 300, wherein the machine table 100 is provided with a workbench 700; the feeding mechanism 200 is arranged on the machine table 100; the material moving mechanism 300 is arranged on the machine table 100, the material moving mechanism 300 comprises a tool clamp 340, and the tool clamp 340 can receive a valve from the feeding mechanism 200 and drive the valve to move; the positioning mechanism 600 is disposed on the machine platform 100, the positioning mechanism 600 includes a rotatable fixing component 630, and the fixing component 630 can fix the valve; the gas transmission mechanism 500 is arranged on the machine table 100, the gas transmission mechanism 500 comprises a gas transmission pipe 550, the gas transmission pipe 550 can transmit gas to the valve, and the gas transmission pipe 550 is connected with the detection instrument 400; the air blocking mechanism 800 is arranged on the machine table 100, the air blocking mechanism 800 comprises a plug 870, and the plug 870 can plug an air outlet of the valve; the blanking mechanism 900 is disposed on the machine 100.

After the loading mechanism 200 performs loading, the material moving mechanism 300 transports the valve to be tested to the worktable 700. Subsequently, the positioning mechanism 600 drives the fixing component 630 to move close to the worktable 700, and the valve element of the valve device to be tested is clamped by the fixing component 630. The air delivery mechanism 500 drives the air delivery pipe 550 to move close to the workbench 700, so that the air delivery pipe 550 can be connected with the air inlet of the valve to be tested. Meanwhile, the air blocking mechanism 800 drives the plug 870 to move to block the air outlet of the valve to be tested. Subsequently, the gas pipe 550 transmits gas into the valve to be tested, and the fixing component 630 drives the valve rod to rotate, so that the gas can be transmitted while the gas is transmitted, and the gas tightness or flow and other numerical values of the valve to be tested can be detected by using the detection instrument 400. After detection, the gas pipe 550 and the plug 870 move away from the workbench 700, and the material moving mechanism 300 drives the valve to be detected to move to the blanking mechanism 900 for blanking operation. The material moving mechanism 300 drives the valve to be tested to move among the material feeding mechanism 200, the workbench 700 and the material discharging mechanism 900, and the valve to be tested can be fully automatically fed, detected and discharged under the combined action of the positioning mechanism 600, the gas transmission mechanism 500 and the gas blocking mechanism 800. The full-automatic operation has the advantage of high efficiency, and can effectively save manpower and material resources.

Specifically, the securing assembly 630 is a cylinder clamp.

In some embodiments, referring to fig. 2, the feeding mechanism 200 includes a feeding rail 250, a linear vibration driver 270 is disposed on the feeding rail 250, a material taking assembly 230 is disposed at an end of the feeding rail 250, and a tooling fixture 340 is capable of moving adjacent to the material taking assembly 230. When the direct vibration driver 270 is activated, the valve to be tested will move to the end of the feeding rail 250 by vibration. The take-off assembly 230 then removes the individual valve tools to be tested at the end of the feeding rail 250, thereby facilitating the gripping of the individual workpieces by the tooling clamps 340. Through the combined action of the direct vibration driver 270 and the material taking assembly 230, the valve to be tested can be fully automatically fed, and a single valve to be tested is independent, so that the material moving assembly can conveniently take away the single valve to be tested.

Specifically, the feeding rail 250 is provided with a sliding groove 255, and the valve to be tested is slidably mounted in the sliding groove 255.

Specifically, get material subassembly 230 and include first slider and first with a slide rail, first slider is connected with first material cylinder 233 of getting, is provided with the second on the first slider and gets material cylinder 235, and the second is got material cylinder 235 and is connected with and is got material clamping jaw 237. Further, the first slider moves in a direction toward or away from the table 700, and the take-up jaw 237 moves in a direction toward or away from the loading rail 250.

In some embodiments, referring to fig. 3, the end of the feeding track 250 near the take-off assembly 230 is provided with a striker assembly 290. The material blocking assembly 290 can block the material before or after the material taking assembly 230 takes the material, so as to prevent the workpiece on the feeding rail 250 from sliding out of the feeding rail 250.

Specifically, the material blocking assembly 290 comprises a material blocking cylinder 291, and the material blocking cylinder 291 is installed above the feeding rail 250. The material blocking cylinder 291 is connected with a material blocking block 295, and the material blocking cylinder 291 can drive the material blocking block 295 to move and stretch into the sliding groove 255 and block a valve to be tested.

In some embodiments, referring to fig. 4 and 5, the positioning mechanism 600 includes a displacement assembly 610 and a rotation assembly 620, the rotation assembly 620 is disposed on the displacement assembly 610, the displacement assembly 610 can drive the rotation assembly 620 to move close to the worktable 700, and the rotation assembly 620 is connected to the fixing assembly 630 and can drive the fixing assembly 630 to rotate. After the displacement assembly 610 drives the rotating assembly 620 to move close to the worktable 700, the fixing assembly 630 can clamp the valve rod. When the gas pipe 550 is used for conveying gas to the valve to be tested, the rotating assembly 620 can drive the valve rod to rotate, so that the flow and other numerical values of the valve to be tested can be directly tested.

Specifically, the displacement assembly 610 includes a first motor, the rotation assembly 620 includes a servo motor, the first motor is connected to the servo motor through a second screw pair, and the servo motor is connected to the fixing assembly 630. Of course, the displacement assembly 610 and the rotation assembly 620 may be composed of other components, and the specific embodiment may be adjusted accordingly according to the actual situation, which is not limited herein.

In some embodiments, referring to fig. 4, the gas transmission mechanism 500 includes a mounting base 505 above the workbench 700, the mounting base 505 is connected with a lifting cylinder 510 for driving the mounting base 505 to lift, and the gas transmission pipe 550 is disposed on the mounting base 505. After the lifting cylinder 510 drives the mounting seat 505 to descend, the gas pipe 550 can be connected to a valve to be tested, so that gas transmission detection is performed on the valve. After the detection, the lifting cylinder 510 can drive the gas pipe 550 to rise, so that the valve to be detected can be taken away conveniently. The air pipe 550 is driven by the lifting cylinder 510, so that the air pipe 550 can be simply and directly connected with or separated from a valve to be detected, and the detection efficiency is improved.

In some embodiments, referring to fig. 4, an air valve 520 is disposed on the mounting seat 505, and the air valve 520 is connected to the air pipe 550. The air valve 520 can control the opening and closing of the air pipe 550 and the air conveying amount, so that the air tightness, the flow and other numerical values of the valve to be detected can be detected conveniently.

In some embodiments, referring to fig. 4, the air blocking mechanism 800 includes a telescopic cylinder 850 disposed on the machine 100, and the telescopic cylinder 850 is connected to the plug 870 and can drive the plug to move close to the workbench 700. When the telescopic cylinder 850 extends, the plug 870 can be driven to be close to the workbench 700 and plug the air outlet of the valve to be tested, so that the flow or air tightness and other numerical values of the valve to be tested can be conveniently detected. After the detection is completed, the telescopic cylinder 850 can drive the plug 870 to be away from the workbench 700, so that the valve to be detected can be taken away conveniently.

Specifically, the machine 100 is provided with two sets of air blocking mechanisms 800. The two sets of air blocking mechanisms 800 can be used immediately after one of the air blocking mechanisms fails, so that the problem that the plug 870 is damaged and can be detected again after being replaced by time and labor is solved.

In some embodiments, referring to fig. 7 and 8, the blanking mechanism 900 includes a conveyor belt 950, a blanking chute 920 and a discharging chute 940, the blanking chute 920 and the discharging chute 940 are both disposed obliquely downward, the conveyor belt 950 is located below the blanking chute 920, and the material moving mechanism 300 can hold a workpiece and drive the workpiece to move to the blanking chute 920 or the discharging chute 940. After the detection is finished, when the test is qualified, the material moving mechanism 300 places the tested valve in the discharging slideway 920. The valve will then slide within the drop chute 920 onto the conveyor 950 and be carried away by the conveyor 950. When the test fails, the material removal mechanism 300 will place the valve in the discharge chute 940, thereby discharging the failed valve. Under the combined action of the discharging slide way and the discharging slide way 940, the valve to be tested is fully automatically discharged or discharged, so that the processing efficiency is greatly improved.

Specifically, the machine 100 is provided with two blanking ports 930, and the two blanking ports 930 are respectively communicated with the discharging slideway 940 and the discharging slideway 920. A control button 910 is disposed between the two material dropping openings 930, and a user can select the material moving mechanism 300 to place a workpiece in one of the two material dropping openings 930 according to the control button 910. The control button 910 gives the user the option of discharging material and discharging material, so that the user can determine whether the tested valve is qualified.

It is contemplated that the material moving mechanism 300 may also be electrically connected to the testing instrument through a determining circuit (not shown), so that the material moving mechanism 300 automatically places the valve inside the discharging chute 940 or the discharging chute 920 through the determining circuit. Specifically, the processing mode may be adjusted according to actual needs, and is not limited herein.

In some embodiments, referring to fig. 6, the material moving mechanism 300 includes a material moving rail 370, and a support seat 310 is disposed on the material moving rail 370; the supporting seat 310 is provided with a first material moving assembly 320 and a second material moving assembly 330, the first material moving assembly 320 and the second material moving assembly 330 are connected with the tooling fixture 340, and the material moving track 370, the first material moving assembly 320 and the second material moving assembly 330 can be matched to drive the tooling fixture 340 to perform three-axis movement. The tool clamp 340 can reciprocate among the feeding mechanism 200, the workbench 700 and the blanking mechanism 900 under the driving of the material moving rail 370, so that the feeding, the testing and the blanking of the valve to be tested are realized. The first material moving assembly 320 and the second material moving assembly 330 can drive the tooling fixture 340 to clamp the valve to be tested away from the feeding mechanism 200, the workbench 700 or the blanking mechanism 900, so as to perform the next operation. The tooling fixture 340 can move in the three-axis direction, and therefore can simply and directly move to each mechanism to be clamped or placed, so that smooth material moving is guaranteed.

Specifically, the first material moving assembly 320 includes a first cylinder, and the second material moving assembly 330 includes a second cylinder. The first cylinder is arranged on the supporting seat 310 and connected with a supporting plate 335, and the second cylinder is arranged on the supporting plate 335 and connected with the tool clamp 340. The stretching directions of the first cylinder and the second cylinder and the direction of the material moving rail 370 are orthogonal in pairs. Of course, the first material moving assembly 320 and the second material moving assembly 330 may also be composed of other components, and the specific implementation manner may be adjusted accordingly according to the actual situation, which is not limited herein.

In some embodiments, referring to fig. 1, the material moving rail 370 is provided with a material moving driving assembly 375, and the material moving driving assembly 375 is connected to the supporting base 310 and can drive the supporting base to reciprocate on the material moving rail 370.

Specifically, move the material subassembly including moving the material motor, move the material motor and be connected with supporting seat 310 through first lead screw pair. Of course, the material moving assembly may also be composed of other components, such as an air cylinder, etc., and the specific implementation mode may be adjusted accordingly according to the actual situation, which is not limited herein.

In some embodiments, some or all of the work table 700, the loading mechanism 200, and the positioning mechanism 600 are provided with sensing mechanisms. The sensing mechanism can detect the numerical values of the length size, the screw length and the like of the valve, or whether the valve is short of small parts, and the parts are wrongly installed, so that the yield of the detected valve is improved.

Specifically, the sensing mechanism includes a second probe 750 disposed at the work table 700. The second probe 750 can detect whether the valve is correctly mounted on the table 700, thereby ensuring that the detection work on the table 700 can be stably performed.

Specifically, the sensing mechanism includes a first probe 238 configured at the feed mechanism 200. The sensing mechanism can not only detect that the feeding mechanism 200 accurately grabs the valve, but also detect whether the parts such as screws on the valve are neglected to be installed or not and whether the assembly is accurate or not, thereby improving the yield of the valve.

Further, the sensing mechanism includes at least four first probes 238, and the four first probes 238 correspond to the air inlet and the air outlet of the valve respectively and at least two screw positions.

Specifically, the sensing mechanism may be a sensor that senses a distance, such as an infrared sensor or a laser sensor, or may also be a micro switch, and the specific implementation manner may be adjusted according to an actual situation, which is not limited herein.

In some embodiments, referring to FIG. 4, the end of the air delivery conduit 550 is provided with a sealed fitting 555. When the sealing joint 555 enables the gas pipe 550 to be connected with the valve to be tested and conducts gas, gas flow cannot flow out from a gap between the gas pipe 550 and the valve to be tested, and therefore testing accuracy is guaranteed.

In some embodiments, the lower portion of the machine table 100 is provided with a gas tank 130, and the gas tank 130 is connected with and can supply gas to the gas cylinders of each mechanism.

Specifically, the test instruments include a gas tightness tester, a flow meter, and the like.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims (10)

1. A valve testing machine, comprising:

the device comprises a machine table (100), wherein a workbench (700) is arranged on the machine table (100);

the feeding mechanism (200) is arranged on the machine table (100);

the material moving mechanism (300) is arranged on the machine table (100), the material moving mechanism (300) comprises a tool clamp (340), and the tool clamp (340) can receive a valve from the feeding mechanism (200) and drive the valve to move;

the positioning mechanism (600) is arranged on the machine table (100), the positioning mechanism (600) comprises a rotatable fixing component (630), and the fixing component (630) can fix a valve;

the air conveying mechanism (500) is arranged on the machine table (100), the air conveying mechanism (500) comprises an air conveying pipe (550), the air conveying pipe (550) can convey air to the valve, and the air conveying pipe (550) is connected with a detection instrument (400);

the air blocking mechanism (800) is arranged on the machine table (100), the air blocking mechanism (800) comprises a plug (870), and the plug (870) can block an air outlet of the valve;

and the blanking mechanism (900) is arranged on the machine table (100).

2. The valve detection machine of claim 1, wherein:

the feeding mechanism (200) comprises a feeding rail (250), a direct vibration driver (270) is arranged on the feeding rail (250), a material taking assembly (230) is arranged at the end of the feeding rail (250), and the tool clamp (340) can move close to the material taking assembly (230).

3. The valve detecting machine of claim 2, wherein:

one end of the feeding rail (250), which is close to the material taking assembly (230), is provided with a material blocking assembly (290).

4. The valve detection machine of claim 1, wherein:

positioning mechanism (600) includes displacement assembly (610) and rotating assembly (620), rotating assembly (620) set up on displacement assembly (610), displacement assembly (610) can drive rotating assembly (620) remove to be close to workstation (700), rotating assembly (620) with fixed subassembly (630) are connected and can drive fixed subassembly (630) rotate.

5. The valve detection machine of claim 1, wherein:

the air conveying mechanism (500) comprises a mounting seat (505) located above the workbench (700), the mounting seat (505) is connected with a lifting air cylinder (510) for driving the mounting seat to lift, and the air conveying pipe (550) is arranged on the mounting seat (505).

6. The valve detecting machine of claim 5, wherein:

an air valve (520) is arranged on the mounting seat (505), and the air valve (520) is connected with the air conveying pipe (550).

7. The valve detection machine of claim 1, wherein:

the air blocking mechanism (800) comprises a telescopic cylinder (850) arranged on the machine table (100), and the telescopic cylinder (850) is connected with the plug (870) and can drive the plug (870) to move close to the workbench (700).

8. The valve detection machine of claim 1, wherein:

unloading mechanism (900) includes conveyer belt (950), unloading slide (920) and row material slide (940), unloading slide (920) with it all disposes downwards to expect slide (940), conveyer belt (950) are located the below of unloading slide (920), it can the centre gripping work piece and drive its motion extremely to move to move material mechanism (300) unloading slide (920) or arrange material slide (940).

9. The valve detection machine of claim 1, wherein:

the material moving mechanism (300) comprises a material moving rail (370), and a supporting seat (310) is arranged on the material moving rail (370); be provided with first material subassembly (320) and the second material subassembly (330) of moving on supporting seat (310), first material subassembly (320) of moving with the second material subassembly (330) of moving all with frock clamp (340) is connected, move material track (370) first material subassembly (320) of moving with the second material subassembly (330) of moving can cooperate the drive frock clamp (340) carries out the triaxial motion.

10. The valve detection machine of claim 1, wherein:

sensing mechanisms are arranged at part or all of the workbench (700), the feeding mechanism (200) and the positioning mechanism (600).

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