CN113532846A - Automatic quality inspection system and method for assembled pump body valve - Google Patents

Automatic quality inspection system and method for assembled pump body valve Download PDF

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Publication number
CN113532846A
CN113532846A CN202111073929.3A CN202111073929A CN113532846A CN 113532846 A CN113532846 A CN 113532846A CN 202111073929 A CN202111073929 A CN 202111073929A CN 113532846 A CN113532846 A CN 113532846A
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China
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pump body
body valve
endurance
pressure
weighing
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CN113532846B (en
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张红波
毛飞熊
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Nantong Woteli Machinery Manufacturing Co ltd
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Nantong Woteli Machinery Manufacturing Co ltd
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00Testing of machine parts
    • G01M13/003Machine valves
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D21/00Measuring or testing not otherwise provided for
    • G01D21/02Measuring two or more variables by means not covered by a single other subclass

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  • General Physics & Mathematics (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)

Abstract

The invention discloses an automatic quality inspection system and method of an assembled pump body valve, wherein a single pump body valve is input into a weighing area according to a unique posture for weighing detection; comparing the weighing detection result with the standard weight of a single pump body valve, and regulating and controlling the work of the endurance extrusion mechanism to detect the endurance of the pump body valve or perform waste discharge treatment on the pump body valve; detecting the pressure applied to the pump body valve by the endurance extrusion mechanism by using a weighing area, calculating a distance value in the process of applying the pressure to the pump body valve by using a distance measuring module, comparing whether the distance value in the process of applying the pressure is the same as a standard threshold value, regulating the endurance extrusion mechanism to continuously apply the pressure or regulating the endurance extrusion mechanism to reset and transfer the pump body valve, and when the applied real-time pressure value is the same as the rated pressure, regulating the endurance extrusion mechanism to reset and transfer the pump body valve; the invention combines weight detection and endurance detection, has simple realization mode and improves the detection efficiency.

Description

Automatic quality inspection system and method for assembled pump body valve
Technical Field
The invention relates to the technical field of pump body production lines, in particular to an automatic quality inspection system and method for an assembled pump body valve.
Background
The pump body comprises a plurality of valves, such as a pressure regulating valve, a liquid outlet valve or a return valve, so that a production line with a plurality of valves exists, and the working process of the existing valve assembly specifically comprises the following steps: through the assembly operation of a plurality of stations, processes such as spring, backing plate and rubber circle are impressed in proper order in the valve body, and final shaping pump body valve.
Because the problem or the trouble of equipment production line can lead to some finished pump body valve spare parts to have the disappearance, present many through manual detection or carry out quality control work through sampling test, and sampling test is many through selecting some samples to carry out the functional test of pump body valve (reach the test purpose with the concrete actual scene application of pump body valve) to judge whether normal the equipment of pump body valve.
In addition, most of the operations of pressing in elements such as a spring, a base plate and a rubber ring are performed through an air pressure punching mode, if the punching pressure is too high, the plastic plug is easily and directly damaged, and if the plastic plug is too large in damage, the elements such as the spring, the base plate and the rubber ring can naturally fall off, or the air pressure in the punching process is uneven, so that the plastic plug is torn or cracked, the elements such as the spring, the base plate and the rubber ring can be sufficiently supported and cannot naturally fall off, and the endurance of the valve is reduced due to the breakage, and the endurance is smaller than the pressure bearing capacity of a finished valve assembled in a standard mode.
When the existing pump body valve is subjected to finished product detection, the manual detection efficiency is low, the function detection is complex, the valve is only suitable for detecting defects of parts by sampling, the valve is not suitable for intelligently detecting all valves on a production line, and the manual detection and the function detection cannot accurately detect internal injuries to a plastic plug (the functions cannot be necessarily influenced due to local internal injuries, and the manual detection is difficult to find), so that the quality of the pump body valve finished product of the whole production line cannot be ensured.
Disclosure of Invention
The invention aims to provide an automatic quality inspection system and method for an assembled pump body valve, and aims to solve the technical problems that the prior art is not suitable for intelligently detecting all valves on a production line, manual detection and functional detection cannot accurately detect internal damage of a plastic plug, and the quality of a pump body valve finished product of the whole production line cannot be ensured.
In order to solve the technical problems, the invention specifically provides the following technical scheme:
an automatic quality inspection system for an assembled pump body valve, comprising:
the defect detection mechanism comprises a weighing platform for measuring the weight of the pump body valve and a valve posture guide mechanism arranged on the weighing platform, wherein the valve posture guide mechanism guides the pump body valve to be detected into the weighing platform in a unique posture;
the pressure-resistant extrusion mechanism is arranged above the weighing platform and used for applying pressure perpendicular to the weighing platform to the pump body valve which is weighed and detected on the weighing platform, and the weighing platform is also used for measuring the pressure value vertically applied to the pump body valve by the pressure-resistant extrusion mechanism;
the unique posture is a placing posture which accords with the endurance detection direction of the pump body valve by the endurance extrusion mechanism;
the distance measuring mechanism is arranged at the flush position of one side of the weighing platform and is used for measuring the distance value between the pump body valve and the weighing platform in the process of pressing the pump body valve by the endurance extrusion mechanism;
the weighing platform, the endurance extrusion mechanism and the distance measuring mechanism are connected with the same control system;
the control system acquires the gravity of the pump body valve through the weighing platform, and regulates and controls the rejecting mechanism to work or the endurance extrusion mechanism to work according to the gravity;
the control system obtains a real-time pressure value applied by the endurance extrusion mechanism to the pump body valve according to the weighing platform, obtains a distance value between the endurance extrusion mechanism and the weighing platform in a pressure applying process according to the distance measuring mechanism, regulates the endurance extrusion mechanism to reset according to the distance value in the pressure applying process or resets after continuously applying pressure to a rated pressure, and judges a endurance detection result of the pump body valve according to the distance value in the pressure applying process and transfers the pump body valve from the weighing platform.
As a preferred scheme of the present invention, the defect detecting mechanism includes a slot disposed on the weighing platform, and an electronic weight plate installed in the slot, and the electronic weight plate is used for statically detecting the gravity of the pump body valve.
As a preferred scheme of the present invention, the valve posture guiding mechanism is disposed on a weighing platform between the electronic weight measuring plate and the material conveying unit of the pump body valve, and the pump body valve is guided into the electronic weight measuring plate in a direction perpendicular to the weighing platform under the guiding action of the valve posture guiding mechanism;
valve gesture guiding mechanism is including setting up slope slide on the platform of weighing, and set up two parallel distribution's deflector, two on the slope slide form the spacing crack of gesture between the deflector, pump body valve is in the spacing crack of gesture is inside according to the perpendicular to the direction of slope slide slides, just pump body valve shifts to keep the perpendicular to during the electron surveys heavy board the only gesture on electron surveys heavy board surface.
As a preferable scheme of the present invention, the end of the inclined slide way contacts with an edge of the electronic weight measuring plate, the upper surface of the electronic weight measuring plate is provided with a buffer channel connected with the inclined slide way, the end of the buffer channel is a weighing area of the electronic weight measuring plate, the pump body valve is turned into a static state in the weighing area under the damping action of the friction pad, and the pump body valve maintains a unique posture perpendicular to the electronic weight measuring plate in the weighing area.
As a preferable scheme of the present invention, the heights of the guide plate and the buffer channel are both smaller than the height of the pump body valve, and the limit width of the buffer channel and the width of the attitude limit slit are equal to the diameter of the pump body valve.
As a preferred scheme of the invention, the endurance extrusion mechanism comprises a gantry support arranged on the weighing platform and a power part arranged on the gantry support, a push plate is arranged at the lower end of the power part, the power part drives the push plate to move up and down to extrude the pump body valve, the electronic weight measuring plate dynamically detects a real-time pressure value applied to the pump body valve by the push plate, and a positioning plate flush with the push plate is arranged on the side surface of the push plate.
As a preferable scheme of the present invention, the distance measuring mechanism is a laser distance measuring sensor disposed outside the weighing area of the electronic weight measuring plate and within the extrusion range of the positioning plate, and a distance measuring point of the distance measuring mechanism is flush with the lower surface of the buffer passage to dynamically measure a height change between the lower surface of the positioning plate and the lower surface of the pump body valve.
In order to solve the above technical problems, the present invention further provides the following technical solutions: an automatic quality inspection method of an automatic quality inspection system of an assembled pump body valve comprises the following steps:
step 100, inputting a single pump body valve into a weighing area according to a unique posture for weighing detection, wherein the unique posture is that the pump body valve is vertical to the surface of the weighing area;
step 200, comparing the weighing detection result with the standard weight of a single pump body valve, if the comparison results are the same, regulating and controlling the working of the endurance extrusion mechanism to detect the endurance of the pump body valve, and if the comparison results are different, performing waste discharge treatment on the pump body valve;
step 300, detecting the pressure applied to the pump body valve by the endurance extrusion mechanism by using a weighing area, calculating a distance value in the process of applying the pressure to the pump body valve by using a distance measuring module, comparing whether the distance value in the process of applying the pressure is the same as a standard threshold value, if so, regulating and controlling the endurance extrusion mechanism to continuously apply the pressure, and if not, regulating and controlling the endurance extrusion mechanism to reset and transferring the pump body valve;
step 400, when the applied pressure is the same as the rated pressure, the endurance extrusion mechanism is regulated and controlled to reset, whether the distance value applied to the rated pressure is the same as the standard threshold value or not is determined according to the step 300, and the pump body valve is transferred.
As a preferred scheme of the present invention, in step 300, a control system is used to regulate and control the endurance squeezing mechanism to apply pressure to the pump body valve in a uniform speed increasing manner, and the control system monitors a real-time pressure value applied by the endurance squeezing mechanism to the pump body valve through a weighing platform;
the control system is used for measuring a distance value of the pump body valve in the pressure applying process of the resistance squeezing mechanism, determining a resistance detection result of the pump body valve by comparing the distance value with a standard threshold value, regulating and controlling the resistance squeezing mechanism to reset to finish the resistance detection of a single pump body valve, or resetting after continuously applying pressure to a rated pressure to finish the resistance detection of the single pump body valve.
As a preferred scheme of the invention, when the real-time pressure value is smaller than the rated pressure and the distance value is not equal to the standard threshold value, the control system regulates and controls the endurance extrusion mechanism to reset and regulates and controls the pump body valve to perform waste discharge treatment;
when the real-time pressure value is smaller than the rated pressure and the measured distance is equal to a standard threshold value, the control system regulates the endurance extrusion mechanism to continuously apply pressure;
the control system regulates and controls the endurance extrusion mechanism to reset when the real-time pressure value is equal to the rated pressure and the measured interval is equal to the standard threshold value, regulates and controls the pump body valve to collect finished products, and regulates and controls the pump body valve to discharge waste when the measured interval is not equal to the standard threshold value.
Compared with the prior art, the invention has the following beneficial effects:
the invention realizes the defect detection of the finished product of the pump body valve through the weight detection, can quickly judge whether the pump body valve has defects on a production line, integrates the endurance detection on the basis of the weight detection, and applies the extrusion force to the pump body valve to judge the internal damage condition of the pump body valve, the endurance detection height is based on the fixed attitude and the net weight value of the pump body valve, the endurance detection attitude of the pump body valve does not need to be retransmitted or adjusted, the front state and the rear state of the pump body valve in all detection processes can be kept the same, and the environmental factors influencing the detection are greatly reduced.
The endurance test has adopted the range finding mechanism with the synchronous motion of endurance extrusion mechanism and has accomplished the endurance test to the pump body valve through the altitude variation that detects pump body valve at the in-process of applying the extrusion force, and realization mode is simple and improve detection efficiency, has further embodied the highly integrated and detection efficiency of whole quality testing system to make the direct application in production line that whole quality testing system can be better.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
Fig. 1 is a schematic side sectional view of a finished product detecting device according to an embodiment of the present invention;
fig. 2 is a schematic front view of a finished product detecting device according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a valve attitude guidance provided by an embodiment of the present invention;
fig. 4 is a block diagram of a finished product detection control method according to an embodiment of the present invention;
fig. 5 is a schematic flow chart of a finished product inspection process according to an embodiment of the present invention.
The reference numerals in the drawings denote the following, respectively:
1-a defect detection mechanism; 2-valve attitude guide mechanism; 3-a resistance extrusion mechanism; 4-a distance measuring mechanism; 5-a buffer channel; 6-a control system; 7-a friction pad;
11-a weighing platform; 12-slotting; 13-electronic weight measuring board;
21-inclined ramp; 22-a guide plate; 23-attitude limit crack;
31-gantry support; 32-a power section; 33-a push plate; 34-positioning plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the present invention provides an automatic quality inspection system for assembled pump body valves, the automatic quality inspection system of the present embodiment is disposed at the end of a pump body valve assembly line for quality inspection of the assembled pump body valves, the pump body valve is assembled by sequentially stamping the parts such as the spring, the snap ring, the gasket, the rubber ring and the like to the same valve body, therefore, the valve body can be damaged directly due to overlarge stamping, and if the valve body is damaged excessively, elements such as a spring, a base plate, a rubber ring and the like can fall naturally, and the finished product detection can be completed through the weight detection of the finished product, if the valve body is damaged little and the spring, the backing plate, the rubber ring and other elements are enough to support and cannot fall off naturally, and the crushing causes the reduction of the endurance of the valve, which is smaller than the pressure bearing capacity of the finished valve after standard assembly.
Therefore, the embodiment successively performs finished product detection through two modes, namely weight detection and endurance detection, generally speaking, the weight detection is used for detecting the pump body valve with obvious defects, the endurance detection is used for detecting internal damage generated in the assembly process of the valve, the method belongs to quality detection with high accuracy, the weight detection and the endurance detection are integrated detection without in-situ transfer, the weight detection is used for determining the extrusion force applied to the pump body valve by the endurance detection, and the endurance detection of the pump body valve is completed by detecting the height change of the pump body valve after the extrusion force reaches the standard pressure.
As shown in fig. 2, the defect detection mechanism 1 includes a weighing platform 11 for measuring the weight of the valve of the pump body, and a valve posture guide mechanism 2 disposed on the weighing platform 11, wherein the valve posture guide mechanism 2 guides the valve of the pump body to be detected into the weighing platform 11 in a unique posture.
The endurance extrusion mechanism 3 is arranged above the weighing platform 11, the endurance extrusion mechanism 3 is used for applying pressure perpendicular to the weighing platform 11 to a pump body valve which is used for completing weighing detection on the weighing platform 11, and the weighing platform 11 is also used for measuring a pressure value which is vertically applied to the pump body valve by the endurance extrusion mechanism 3. The unique posture is a placing posture which accords with the endurance detection direction of the endurance squeezing mechanism 3 to the pump body valve, namely, the pressure bearing capacity of a certain position of the pump body valve is tested, and the unique posture is used for ensuring that the squeezing direction of the pump body valve in the endurance squeezing mechanism 3 is just the pressure bearing capacity of the position of the pump body valve to be tested.
The distance measuring mechanism 4 is arranged at the flush position of one side of the weighing platform 11, and the distance measuring mechanism 4 is used for measuring the distance value between the pump body valve pressing process and the weighing platform 11 by the endurance extrusion mechanism 3.
The defect detection mechanism 1 is used for weighing and detecting the pump body valve so as to judge the integrity of the pump body valve during assembly, the endurance extrusion mechanism 3 applies pressure perpendicular to the pump body valve after weighing and detecting are completed, and the distance measurement mechanism 4 detects deformation of the pump body valve after the pressure is applied so as to test the pressure-resistant quality.
Defect detection mechanism 1 is including setting up fluting 12 on weighing platform 11 to and install the electron check weighing plate 13 in fluting 12, and electron check weighing plate 13 is used for the gravity of static detection pump body valve, and wherein, electron check weighing plate 13 is used for measuring the gravity size of pump body valve, is not used for calculating the weight of electron check weighing plate 13, thereby makes things convenient for electron check weighing plate 13 to measure the pressure value that endurance extrusion mechanism 3 applyed.
Because this embodiment is through the deformation of ranging mechanism 4 measurement pump body valve after the pressure extrusion pressure, consequently in order to confirm the job stabilization nature of ranging mechanism 4, need inject the direction of pump body valve on weighing platform 11, generally speaking, ranging mechanism 4 is used for measuring the high deformation of pump body valve, consequently with the pump body valve threshold for when the body valve shifts to electron weight measuring board 13, the direction of height of pump body valve is perpendicular to weighing platform 11.
As shown in fig. 1 and 3, the valve posture guide mechanism 2 is disposed on the weighing platform 11 between the electronic weighing plate 13 and the material conveying unit of the pump body valve, and the pump body valve is guided into the electronic weighing plate 13 in a direction perpendicular to the weighing platform 11 by the guide of the valve posture guide mechanism 2.
The valve posture guide mechanism 2 comprises an inclined slide rail 21 arranged on the weighing platform 11 and two guide plates 22 arranged on the inclined slide rail 21 and distributed in parallel, a posture limiting crack 23 is formed between the two guide plates 22, the pump body valve slides in the posture limiting crack 23 in the direction perpendicular to the inclined slide rail 21, and the unique posture perpendicular to the surface of the electronic weighing plate 13 is kept when the pump body valve is transferred to the electronic weighing plate 13.
Therefore, in the embodiment, the valve posture guide mechanism 2 is arranged on the weighing platform 11, the port of the inclined slide way 21 close to the feeding unit is used as a guide inlet of the pump body valve, the pump body valve slides to the bottom of the inclined slide way 21 along the posture limiting crack 23, and the pump body valve is always perpendicular to the surface of the inclined slide way 21 in the transferring process, so that when the pump body valve is transferred to the weighing platform 11, the vertical posture of the electronic weighing plate 13 is kept.
The tail end of the inclined slide way 21 is in contact with the edge of the electronic weighing plate 13, the buffer channel 5 connected with the inclined slide way 21 is arranged on the upper surface of the electronic weighing plate 13, the tail end of the buffer channel 5 is a weighing area of the electronic weighing plate 13, the pump body valve is converted into a static state in the weighing area under the damping action of the friction pad 7, and the pump body valve keeps a unique posture vertical to the electronic weighing plate 13 in the weighing area. The electronic weight plate 13 statically detects the weight of the pump body valve, so that the accuracy of weighing work is improved.
Wherein, in this embodiment, the feeding unit can be the end of conveyer belt, and pump body valve removes to slope slide 21, and pump body valve keeps perpendicular to electron to survey heavy board 13 and can only be perpendicular to electron and survey heavy board 13 surface under the dual function of slope slide 21 and buffer channel 5 to guarantee the uniformity of pump body valve standard height when endurance detects, make things convenient for the later stage to judge whether pump body valve satisfies the endurance demand according to the output result of range finding structure.
Preferably, the height of the guide plate 22 and the height of the buffer channel 5 are both smaller than the height of the pump body valve, so that the normal work of the pressure application of the pump body valve for endurance detection in the later period is ensured, the limit width of the buffer channel 5 and the width of the posture limit crack 23 are equal to the diameter of the pump body valve, and the normal movement of the pump body valve along the posture limit crack 23 and the buffer channel 5 is ensured.
The endurance extrusion mechanism 3 comprises a gantry support 31 arranged on the weighing platform 11 and a power part 32 arranged on the gantry support 31, a push plate 33 is installed at the lower end of the power part 32, the power part 32 moves up and down by driving the push plate 33 to extrude the pump body valve, the electronic weighing plate 13 dynamically detects the real-time pressure value applied to the pump body valve by the push plate 33, and a positioning plate 34 flush with the push plate 33 is arranged on the side surface of the push plate 33.
The distance measuring mechanism 4 is a laser distance measuring sensor which is arranged outside the weighing area of the electronic weight measuring plate 13 and is positioned in the extrusion range of the positioning plate 34, and the distance measuring point of the distance measuring mechanism 4 is flush with the upper surface of the electronic weight measuring plate 13 so as to dynamically measure the height change between the lower surface of the positioning plate 34 and the lower surface of the pump body valve.
As shown in fig. 4, the weighing platform 11, the endurance extrusion mechanism 3 and the distance measuring mechanism 4 are connected with the same control system 6, the control system 6 acquires the gravity of the pump body valve through the weighing platform 11, and the control system 6 controls and rejects the work of the mechanism 5 or the work of the endurance extrusion mechanism 3 according to the gravity.
The control system 6 directly judges whether the weight of the pump body valve is qualified or not according to the output data of the weighing platform 11, and when the weight of the pump body valve is qualified, the control system 5 further regulates and controls the operation of the endurance extrusion mechanism 3, applies pressure to the pump body valve by using the push plate 33, and the control system 5 indirectly detects the damage of the pump body valve according to the output data of the distance measuring component 42 when the constant force extrusion component 41 applies rated measurement pressure.
When the weight of the pump body valve is not qualified, the condition that parts are omitted or redundant exists in the pump body valve is meant, and the control system 5 conducts waste discharge treatment on the pump body valve according to the output data regulation and control of the defect detection mechanism 3. When the weight of the pump body valve is qualified, the control system 5 regulates and controls the endurance extrusion mechanism 3 to work to carry out endurance detection so as to judge whether internal damage occurs in the assembly process of the pump body valve.
And determining whether the pump body valve is highly deformed or not in the pressure applying process according to the output data of the distance measuring mechanism 4, if so, regulating and controlling to discharge waste to the pump body valve, and if not, regulating and controlling to collect good products of the pump body valve.
The control system 6 obtains a real-time pressure value applied by the endurance extrusion mechanism 3 of the pump body valve according to the weighing platform 11, the control system 6 obtains a distance value between the endurance extrusion mechanism 3 and the weighing platform 11 in a pressure applying process according to the distance measuring mechanism 4, the control system 6 regulates and controls the endurance extrusion mechanism 3 to reset according to the distance value in the pressure applying process or resets after continuously applying pressure to a rated pressure, and the control system 6 judges a endurance detection result of the pump body valve according to the distance value in the pressure applying process and transfers the pump body valve from the weighing platform 11.
Therefore, the present embodiment performs the finished product detection in two ways of sequential logical association, that is, firstly, the weight of the valve of the pump body is measured to determine whether the situation that the spring, the pad plate, the rubber ring and other elements are omitted to be assembled exists, and once the weight is less than the standard weight, the waste removing work is immediately performed.
The pump body valve with qualified weight is pressed, whether the height of the pump body valve changes or not is detected in the process that the applied pressure is gradually increased to the maximum pressure borne by the standard pump body valve, when the height of the pump body valve changes, the plastic plug is damaged in the assembling process, the supporting capacity is damaged, the compression deformation is generated under the condition of external force extrusion, and when the height of the pump body valve does not change, the plastic plug is undamaged in the assembling process to be a good product.
In addition, as shown in fig. 5, the present invention further provides an automatic quality inspection method for an assembled pump body valve automatic quality inspection system, comprising the following steps:
step 100, inputting a single pump body valve into a weighing area according to a unique posture for weighing detection, wherein the unique posture is that the pump body valve is vertical to the surface of the weighing area;
and 200, comparing the weighing detection result with the standard weight of a single pump body valve, if the comparison result is the same, regulating and controlling the working of the endurance extrusion mechanism to detect the endurance of the pump body valve, and if the comparison result is different, performing waste discharge treatment on the pump body valve, wherein the standard weight is the corresponding gravity when the pump body valve is completely assembled.
The pump body valve is directly transferred to waste discharge treatment when the weighing detection result is not equal to the standard weight, further, the missing part of the pump body valve is judged according to the weight difference value between the weighing detection result and the standard weight, the missing part detected correspondingly by the defect detection mechanism 3 is recorded every time, and the detection frequency of the missing part is compared with a set value in regular time to regulate and control the assembly station corresponding to the missing part, so that reverse monitoring of the assembly station is achieved through quality detection of the pump body valve, and when the occurrence frequency of a certain missing part is large, the assembly station corresponding to the missing part is reversely deduced to be possibly failed.
300, detecting a real-time pressure value applied to the pump body valve by the endurance extrusion mechanism by using a weighing area, calculating a spacing value in the process of applying pressure to the pump body valve by using a distance measurement module, comparing whether the spacing value in the process of applying pressure is the same as a standard threshold value, if so, continuously applying pressure by the endurance extrusion mechanism, otherwise, resetting the endurance extrusion mechanism and transferring the pump body valve, wherein the standard threshold value is the standard height of the pump body valve without damage;
step 400, when the applied real-time pressure value is the same as the rated pressure, the resistance extrusion mechanism is regulated and controlled to reset, and the pump body valve is transferred, wherein the rated pressure is the rated extrusion pressure borne by the undamaged pump body valve, the applied real-time pressure value is specifically f-fi, f is a real-time weighing detection result of a weighing area, and fi is the corresponding gravity when the pump body valve is completely assembled.
The control system is used for regulating and controlling the endurance extrusion mechanism to apply pressure to the pump body valve in a constant-speed increasing mode, and monitors a real-time pressure value applied to the pump body valve by the endurance extrusion mechanism through the weighing platform.
The control system is used for measuring a distance value of the pump body valve in the pressure applying process of the resistance squeezing mechanism, determining a resistance detection result of the pump body valve by comparing the distance value with a standard threshold value, regulating and controlling the resistance squeezing mechanism to reset to finish the resistance detection of a single pump body valve, or resetting after continuously applying pressure to a rated pressure to finish the resistance detection of the single pump body valve.
Specifically, the control system regulates and controls the endurance extrusion mechanism to reset when the real-time pressure value is smaller than the rated pressure and the spacing value is not equal to the standard threshold value, and regulates and controls the pump body valve to discharge waste.
And when the real-time pressure value is smaller than the rated pressure and the measured distance is equal to the standard threshold value, the control system regulates the endurance extrusion mechanism to continuously apply pressure.
The control system regulates and controls the endurance extrusion mechanism to reset when the real-time pressure value is equal to the rated pressure and the measured distance is equal to the standard threshold value, regulates and controls the pump body valve to collect finished products, and regulates and controls the pump body valve to discharge waste when the measured distance is not equal to the standard threshold value.
The weight detection and the endurance detection are integrated detection without in-situ transfer, the extrusion force applied to a pump body valve by the endurance detection is determined by the weight detection, the endurance detection of the pump body valve is completed by detecting the height change of the pump body valve after the extrusion force reaches the standard pressure, the missing part detected by a defect detection mechanism each time is recorded, and the detection frequency of the missing part is compared with a set value in a regular time to regulate and control the assembly station of the corresponding missing part, so that the reverse monitoring of the assembly station is achieved by the quality detection of the pump body valve, and when the occurrence frequency of a certain missing part is more, the assembly station corresponding to the missing part is reversely deduced to possibly have a fault so as to carry out maintenance.
The above embodiments are only exemplary embodiments of the present application, and are not intended to limit the present application, and the protection scope of the present application is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present application and such modifications and equivalents should also be considered to be within the scope of the present application.

Claims (10)

1. An automatic quality control system for an assembled pump body valve, comprising:
the defect detection mechanism (1) comprises a weighing platform (11) for measuring the weight of the pump body valve and a valve posture guide mechanism (2) arranged on the weighing platform (11), wherein the valve posture guide mechanism (2) guides the pump body valve to be detected into the weighing platform (11) in a unique posture;
the stress-resistant extrusion mechanism (3) is arranged above the weighing platform (11), the stress-resistant extrusion mechanism (3) is used for applying pressure perpendicular to the weighing platform (11) to a pump body valve which is weighed and detected on the weighing platform (11), and the weighing platform (11) is also used for measuring the pressure value applied to the pump body valve by the stress-resistant extrusion mechanism (3) perpendicularly;
the unique posture is a placing posture which accords with the endurance detection direction of the pump body valve by the endurance extrusion mechanism (3);
the distance measuring mechanism (4) is arranged at the flush position of one side of the weighing platform (11), and the distance measuring mechanism (4) is used for measuring a distance value between the distance measuring mechanism and the weighing platform (11) in the process that the endurance extrusion mechanism (3) presses a valve of a pump body;
the weighing platform (11), the endurance extrusion mechanism (3) and the distance measuring mechanism (4) are connected with the same control system (6);
the control system (6) acquires the gravity of the pump body valve through the weighing platform (11), and the control system (6) regulates and controls the rejecting mechanism (5) to work or the endurance extrusion mechanism (3) to work according to the gravity;
the control system (6) acquires a real-time pressure value applied by the endurance extrusion mechanism (3) to the pump body valve according to the weighing platform (11), the control system (6) acquires a distance value between the endurance extrusion mechanism (3) and the weighing platform (11) in a pressure applying process according to the distance measuring mechanism (4), the control system (6) regulates and controls the endurance extrusion mechanism (3) to reset according to the distance value in the pressure applying process or resets after continuously applying pressure to a rated pressure, and the control system (6) judges a endurance detection result of the pump body valve according to the distance value in the pressure applying process and transfers the pump body valve from the weighing platform (11).
2. The automated pump body valve quality inspection system of claim 1, wherein: defect detection mechanism (1) is including setting up fluting (12) on weighing platform (11), and install electron check weighing plate (13) in fluting (12), electron check weighing plate (13) are used for the gravity of static detection pump body valve.
3. The system of claim 2, wherein the pump body valve is assembled by an automated inspection system comprising: the valve posture guide mechanism (2) is arranged on a weighing platform (11) between the electronic weighing plate (13) and a material conveying unit of the pump body valve, and the pump body valve is guided into the electronic weighing plate (13) in a direction perpendicular to the weighing platform (11) under the guide action of the valve posture guide mechanism (2);
valve gesture guiding mechanism (2) are including setting up slope slide (21) on weighing platform (11), and set up and be in two parallel distribution's deflector (22) on slope slide (21), two form gesture spacing crack (23) between deflector (22), the pump body valve is in gesture spacing crack (23) are inside according to the perpendicular to the direction of slope slide (21) slides, just the pump body valve shifts to keep perpendicular to during electron weight measuring board (13) the only gesture on electron weight measuring board (13) surface.
4. The automated pump body valve quality inspection system of claim 3, wherein: the end of slope slide (21) with the edge contact of electron weight measuring board (13), just the upper surface of electron weight measuring board (13) be equipped with buffer channel (5) that slope slide (21) are connected, just the end of buffer channel (5) does the electron is surveyed the area of weighing of weight measuring board (13), pump body valve is in under the damping effect of friction pad (7) the regional adversion of weighing becomes static, just pump body valve is in keep perpendicular to in the area of weighing the only gesture of electron weight measuring board (13).
5. The system of claim 4, wherein the pump body valve is assembled by an automated inspection system comprising: the height of deflector (22) and buffering passageway (5) all is less than the height of pump body valve, just the spacing width of buffering passageway (5) and the width of the spacing crack of gesture (23) equals the diameter of pump body valve.
6. The system of claim 2, wherein the pump body valve is assembled by an automated inspection system comprising: endurance extrusion mechanism (3) are including setting up gantry support (31) on weighing platform (11), and set up power portion (32) on gantry support (31), push pedal (33) are installed to the lower extreme of power portion (32), power portion (32) are through driving push pedal (33) up-and-down motion is in order to extrude the pump body valve, just electron weight measuring board (13) dynamic verification push pedal (33) are right the real-time pressure value that the pump body valve was applyed, be equipped with on the side surface of push pedal (33) with locating plate (34) that push pedal (33) flushed.
7. The automated pump body valve quality inspection system of claim 6, wherein: ranging mechanism (4) are for setting up the regional outside of weighing of electron weight measuring board (13) and be in the laser range finding sensor in the extrusion range of locating plate (34), ranging mechanism's (4) range finding point location with the lower surface of buffer channel (5) flushes, with the dynamic measurement the lower surface of locating plate (34) with altitude variation between the lower surface of pump body valve.
8. A method for the automatic quality control of an automatic quality control system of an assembled pump body valve according to any one of claims 1 to 7, comprising the following steps:
step 100, inputting a single pump body valve into a weighing area according to a unique posture for weighing detection, wherein the unique posture is that the pump body valve is vertical to the surface of the weighing area;
step 200, comparing the weighing detection result with the standard weight of a single pump body valve, if the comparison results are the same, regulating and controlling the working of the endurance extrusion mechanism to detect the endurance of the pump body valve, and if the comparison results are different, performing waste discharge treatment on the pump body valve, wherein the standard weight is the corresponding gravity when the pump body valve is completely assembled;
step 300, detecting the pressure applied to the pump body valve by the endurance extrusion mechanism by using a weighing area, calculating a distance value in the process of applying the pressure to the pump body valve by using a distance measuring module, comparing whether the distance value in the process of applying the pressure is the same as a standard threshold value, if so, regulating and controlling the endurance extrusion mechanism to continuously apply the pressure, and if not, regulating and controlling the endurance extrusion mechanism to reset and transfer the pump body valve, wherein the standard threshold value is the standard height of the pump body valve without damage;
step 400, when the applied real-time pressure value is the same as the rated pressure, the resistance extrusion mechanism is regulated and controlled to reset, whether the distance value applied to the rated pressure is the same as the standard threshold value or not is determined according to the step 300, and the pump body valve is transferred, wherein the rated pressure is the rated extrusion pressure borne by the undamaged pump body valve.
9. The automatic quality inspection method of the automatic quality inspection system of the assembled pump body valve according to claim 8, wherein in step 300, the pump body valve is pressurized by the endurance extrusion mechanism under the control of a control system in a uniform speed increasing manner, and the control system monitors a real-time pressure value applied to the pump body valve by the endurance extrusion mechanism through a weighing platform, wherein the real-time pressure value is equal to f-fi, wherein f is a real-time weighing detection result of a weighing area, and fi is a corresponding gravity when the pump body valve is completely assembled;
the control system is used for measuring a distance value of the pump body valve in the pressure applying process of the resistance squeezing mechanism, determining a resistance detection result of the pump body valve by comparing the distance value with a standard threshold value, regulating and controlling the resistance squeezing mechanism to reset to finish the resistance detection of a single pump body valve, or resetting after continuously applying pressure to a rated pressure to finish the resistance detection of the single pump body valve.
10. The automatic quality inspection method of the automatic quality inspection system of the assembled pump body valve according to claim 9, wherein the control system regulates the resetting of the endurance extrusion mechanism and regulates the pump body valve to perform waste disposal treatment when the real-time pressure value is smaller than the rated pressure and the interval value is not equal to a standard threshold value;
when the real-time pressure value is smaller than the rated pressure and the measured distance is equal to a standard threshold value, the control system regulates the endurance extrusion mechanism to continuously apply pressure;
the control system regulates and controls the endurance extrusion mechanism to reset when the real-time pressure value is equal to the rated pressure and the measured interval is equal to the standard threshold value, regulates and controls the pump body valve to collect finished products, and regulates and controls the pump body valve to discharge waste when the measured interval is not equal to the standard threshold value.
CN202111073929.3A 2021-09-14 2021-09-14 Automatic quality inspection system and method for assembled pump body valve Active CN113532846B (en)

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