CN117570819B - Detection device and detection method for tubular pump production - Google Patents

Abstract

The application relates to a detection device and a detection method for tubular pump production, wherein the detection device comprises a base; a supporting wheel; a driving mechanism; a detection seat; the detection rod is vertically and elastically arranged in the detection seat, and the upper end of the detection rod is fixedly connected with a detection head which is used for propping against the pump shell; the balancing mechanism is arranged in the detection seat and used for balancing and resetting the vertical position of the detection rod; a first marking mechanism provided on one side of the detection lever and configured to mark on the pump housing when the detection lever moves up from the initial position; a second marking mechanism provided at one side of the detection lever and configured to mark on the pump housing when the detection lever moves downward from the initial position; the first marking mechanism and the second marking mechanism are different in marking form. According to the detection device, the detection head is elastically abutted against the periphery of the pump shell rotating slowly at a uniform speed, and when the detection head is abutted against the concave or convex part of the outer wall of the pump shell, the corresponding first marking mechanism or second marking mechanism marks on the pump shell, so that the roundness of the pump shell can be intuitively detected.

Description

Detection device and detection method for tubular pump production

Technical Field

The application relates to the technical field of workpiece machining detection, in particular to a detection device and a detection method for tubular pump production.

Background

The tubular pump is one of horizontal axial flow pumps, and water flow passes through the pump inner flow passage along the rotation axis direction of the pump without obvious turning, and the water inlet and outlet flow passage is positioned on a straight line, is approximately straight cylindrical, has little hydraulic loss, high water lifting efficiency, compact structure, convenient installation and maintenance and simple pump station engineering. It mainly consists of pump shell, impeller, shaft, seal and slide valve. In the process of producing the tubular pump, not only the impeller at the most core is required to be subjected to dynamic balance test, but also the sizes of all parts of the pump shell are required to be accurately detected so as to ensure the assembly precision.

The utility model provides a chinese patent with publication number CN109000534a in the related art, a spare part size detection device is used in hydraulic booster pump production is proposed, including horizontal seat and perpendicular seat, the one side surface of horizontal seat is erected to the seat, front end surface one side of erecting the seat is provided with the scale, the one side surface that is close to horizontal seat of erecting the seat is provided with the recess, and the inside fixed mounting of recess has first magnetism connecting block, one side surface movable mounting of first magnetism connecting block has second magnetism connecting block, and one side surface fixed mounting that first magnetism connecting block was kept away from to the second magnetism connecting block has the slide rail, one side surface movable mounting that first magnetism connecting block was kept away from to the slide rail has the gear, and the surface parcel of gear has the sliding closure. This spare part size detection device is used in hydraulic booster pump production can carry out the diversified detection of multi-angle to spare part, and reduces the error of testing result through a series of modes, simple structure, and the detection effect is excellent.

The related art in the above has the following drawbacks: the tubular pump mainly comprises a bulb type, a vertical shaft type and a shaft extension type, and because of the large size, the pump shell is formed by splicing or welding a plurality of sections of cylindrical segmented pump shells, and the higher roundness of each segmented pump shell needs to be ensured before assembly, and the outer diameter of the tubular pump can reach a plurality of meters, so that the roundness of the tubular pump is difficult to accurately detect.

Disclosure of Invention

In order to solve the problem that roundness is difficult to detect due to the large size of a pump shell of a tubular pump, the application provides a detection device and a detection method for tubular pump production.

The first aspect of the present application provides a detection device for tubular pump production, which adopts the following technical scheme:

a detection device for the production of a tubular pump comprises a base;

the support wheels are provided with a plurality of support wheels which are rotatably arranged on the base, and the support wheels are arranged in two rows and are coplanar with the bearing wheel axes in the same row;

the driving mechanism is arranged on the base and is used for driving the supporting wheels to rotate in the same direction;

the detection seat is arranged on the base and is positioned between the two rows of bearing wheels;

the detection rod is vertically and elastically arranged in the detection seat, and the upper end of the detection rod is fixedly connected with a detection head which is used for propping against the pump shell;

the balancing mechanism is arranged in the detection seat and used for balancing and resetting the vertical position of the detection rod;

a first marking mechanism provided on one side of the detection lever and configured to mark on the pump housing when the detection lever moves up from an initial position;

a second marking mechanism provided on one side of the detection lever and configured to mark on the pump housing when the detection lever moves downward from an initial position;

the first marking mechanism and the second marking mechanism are different in marking form.

Still further, the balancing mechanism includes:

the balance plate is arranged in the detection seat in a sliding manner, and the detection rod is fixedly connected to the balance plate;

the upper elastic piece is positioned between the balance plate and the upper end of the detection seat;

the lower elastic piece is positioned between the balance plate and the lower end of the detection seat;

when the detection rod is located at the initial position, the upper elastic piece and the lower elastic piece are in a compressed state.

Further, the first marking mechanism comprises a first marking needle and a first ink bag connected with the first marking needle, the second marking mechanism comprises a second marking needle and a second ink bag connected with the second marking needle, and the colors of the inks filled in the first ink bag and the second ink bag are different;

the first ink bag and the second ink bag are connected with an ink supply assembly, and the ink supply assembly is configured to control the first ink bag to squeeze ink into the first marking needle when the detection rod moves upwards from the initial position and control the second ink bag to squeeze ink into the second marking needle when the detection rod moves downwards from the initial position.

Still further, the ink supply assembly comprises an ink supply cylinder and a piston arranged in the ink supply cylinder in a sliding manner, wherein a first chamber is arranged on one side of the piston in the ink supply cylinder, a second chamber is arranged on the other side of the piston, the first chamber is communicated with the first ink bag, and the second chamber is communicated with the second ink bag;

the air supply cylinder is provided with a control module for controlling the piston to move into the first chamber or the second chamber;

the detection seat is provided with a detection module for detecting the moving state of the detection rod;

the detection module is in control connection with the control module.

Further, the control module comprises a first magnet and a second magnet which are fixedly connected to two sides of the piston respectively, and a first electromagnet and a second electromagnet which are fixedly connected in the air supply cylinder;

the first electromagnet is arranged corresponding to the first magnet and is magnetically repelled with the first magnet after being electrified;

the second electromagnet is arranged corresponding to the second magnet and is magnetically repelled with the second magnet after being electrified;

when the detection module detects that the detection rod moves upwards, the second electromagnet is controlled to be electrified and the first electromagnet is controlled to be powered off; when the detection module detects that the detection rod moves downwards, the first electromagnet is controlled to be electrified and the second electromagnet is controlled to be powered off;

when the detection module detects that the detection rod is located at the initial position, the first electromagnet and the second electromagnet are electrified simultaneously.

Further, the detection module comprises a first metal piece and a second metal piece which are arranged on the detection seat, and the balance plate is provided with a first metal contact corresponding to the first metal piece and a second metal contact corresponding to the second metal piece;

when the first metal contact slides to be propped against the first metal piece, the first electromagnet is electrified; when the second metal contact slides to be propped against the second metal piece, the second electromagnet is electrified;

the first metal piece is arranged on one side close to the lower elastic piece, and the second metal piece is arranged on one side close to the upper elastic piece; only when the detection rod is reset to the initial position, the first metal contact is in contact with the first metal piece, and the second metal contact is in contact with the second metal piece.

Further, the first metal piece and the second metal piece are both provided as sliding resistors, and resistance values of one ends of the first metal piece and the second metal piece, which are close to the balance plate, are maximum.

Further, the detection head is detachably connected to the detection rod.

Further, the first chamber is communicated with the first ink bag in a sealing way, and the communicating part of the first chamber and the first ink bag is positioned above the liquid level in the first ink bag;

the second chamber is communicated with the second ink bag in a sealing way, and the communicating part of the second chamber and the second ink bag is positioned above the liquid level in the second ink bag.

The detection method for the production of the tubular pump provided by the second aspect of the application adopts the following technical scheme:

the detection method for the production of the tubular pump is based on the detection device for the production of the tubular pump, and comprises the following steps of:

s1, hoisting a pump shell to be detected on a plurality of bearing wheels, and driving the corresponding bearing wheels to rotate through the driving mechanism so as to ensure that the pump shell to be detected rotates stably and then is detected;

s2, enabling the detection seat to correspond to a section to be detected of the pump shell, and enabling the detection head to be abutted against the peripheral wall of the pump shell;

s3, starting the driving mechanism to enable the pump shell to slowly rotate, enabling the balance mechanism to ensure that the detection head is always abutted against the outer peripheral wall of the pump shell, enabling the detection rod to move upwards when the outer periphery of the pump shell is concave, and enabling the first marking mechanism to mark on the pump shell; when the pump shell is out of Zhou Waitu, the detection rod moves downwards, and the second marking mechanism marks on the pump shell;

s4, inspecting and maintaining the whole roundness defect part of the pump shell according to the marks of different colors on the periphery of the pump shell by the first marking mechanism and the second marking mechanism.

In summary, the beneficial technical effects of the application are:

1. the detection head is elastically abutted against the periphery of the pump shell rotating slowly at a uniform speed, when the detection head is abutted against the concave part in the outer wall of the pump shell, the detection rod moves upwards from the initial position, and the first marking mechanism marks on the pump shell; when the detection head is abutted to the outer convex part of the outer wall of the pump shell, the detection rod moves downwards from the initial position, and the second marking mechanism marks on the pump shell at the moment; after the pump shell rotates for one circle, the roundness of the pump shell can be determined to be stored in the place of the concave or convex defect according to the mark line of the first mark mechanism and the mark line of the second mark mechanism, so that correction processing is convenient;

2. when the detection rod moves upwards from the initial position, the balance plate drives the first metal contact and the second metal contact to move upwards, the first metal contact breaks away from the interference with the first metal piece, the first electromagnet is powered off, the magnetic repulsive force between the first electromagnet and the first magnet disappears, and the piston moves into the first chamber under the action of the magnetic repulsive force between the second electromagnet and the second magnet, so that the first marking needle sprays ink; when the detection rod moves downwards from the initial position, the balance plate drives the first metal contact and the second metal contact to move upwards, the second metal contact is separated from the interference with the second metal piece, the second electromagnet is powered off, the magnetic repulsive force between the second electromagnet and the second magnet disappears, and the piston moves into the second chamber under the action of the magnetic repulsive force between the first electromagnet and the first magnet, so that the second marking needle ejects ink, and the effect of automatically controlling the position of the piston according to the position state of the detection rod can be realized;

3. the first metal piece and the second metal piece are both provided with the sliding resistor, so that when the balance plate drives the first metal contact and the second metal contact to move to a state of being far away from the initial position of the detection rod, the larger the current in the first electromagnet or the second electromagnetic ferroelectric loop is, the larger the movement stroke of the piston controlled in the air supply cylinder is, the larger the corresponding air quantity pressed into the first ink bag or the second ink bag is, and the larger the ink quantity sprayed by the first marking needle or the second marking needle is; therefore, when the degree of concave or convex of the pump shell is larger, the marking degrees of the first mark and the second mark are heavier, so that the main influence point of the roundness defect of the pump shell can be determined, and the subsequent correction is convenient.

Drawings

FIG. 1 is a schematic overall structure of an embodiment of the present application;

FIG. 2 is an enlarged schematic view of a portion A of FIG. 1;

FIG. 3 is a cross-sectional block diagram of a test seat and balancing mechanism according to an embodiment of the present application;

fig. 4 is a cross-sectional structural view of the first marking mechanism and the second marking mechanism according to the embodiment of the present application.

Reference numerals illustrate:

1. a base; 11. a guide rail; 12. a slide;

2. a supporting wheel;

31. a detection seat; 32. a detection rod; 33. a detection head; 34. a balance plate; 35. an upper elastic member; 36. a lower elastic member;

41. a first marking needle; 42. a first ink bag;

51. a second marking needle; 52. a second ink bag;

61. a supply cylinder; 611. a first chamber; 612. a second chamber; 62. a piston;

71. a first magnet; 72. a second magnet; 73. a first electromagnet; 74. a second electromagnet;

81. a first metal piece; 82. a second metal piece; 83. a first metal contact; 84. a second metal contact.

Detailed Description

The following description of the embodiments of the present application will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

The embodiment of the application discloses a detection device for tubular pump production. Referring to fig. 1 and 2, a detection device for producing a through-flow pump includes:

the base 1, the base 1 is arranged with a guide rail 11.

The axes of the supporting wheels 2 are parallel to the guide rail 11, a plurality of supporting wheels 2 are arranged on the base 1 in a rotating way, and the supporting wheels 2 are arranged in two rows at intervals and are coplanar with the axes of the supporting wheels 2 in the same row; the two bearing wheels 2 at the two rows of positions are a group which can stably bear the section of the pump shell, and at least two groups of the bearing wheels 2 can be lifted to be matched with the pump shell section of the conical surface.

The driving mechanism is arranged on the base 1 and used for driving the supporting wheels 2 to rotate in the same direction, the driving mechanism is specifically designed as a motor with a speed reducer, and the driving mechanism drives at least one group of liftable supporting wheels 2 to rotate.

The detection seat 31 is arranged on the base 1 and positioned between the two rows of bearing wheels 2, specifically, the sliding seat 12 is slidably arranged on the guide rail 11, and the detection seat 31 is arranged on the sliding seat 12 in a lifting manner, so that the detection seat 31 can detect different positions of the pump shell and detect the pump shells with different outer diameters; the lifting adjustment structure of the detection seat 31 on the slide 12 is a conventional structure, and will not be described herein.

The detecting rod 32 is vertically and elastically arranged in the detecting seat 31, and a detecting head 33 for propping against the pump shell is fixedly connected to the upper end of the detecting rod, and the detecting head 33 can be a small roller or a metal ball; the detecting head 33 is detachably connected to the detecting rod 32, so that the detecting head 33 can be replaced in time after being worn, specifically, the fixing part of the detecting head 33 is screwed on the detecting rod 32.

The balancing mechanism is arranged in the detection seat 31 and used for balancing and resetting the vertical position of the detection rod 32.

The first marking mechanism is provided on the side of the detection lever 32 and configured to mark on the pump housing when the detection lever 32 moves up from the initial position.

And a second marking mechanism provided on the side of the detection lever 32 and configured to mark on the pump housing when the detection lever 32 moves down from the initial position.

The first marking mechanism and the second marking mechanism are different in marking color or marking material or marking graph, so that the two marking lines can be conveniently distinguished.

After the pump shell to be tested is hoisted to the plurality of supporting wheels 2 by a crane or a crane, the driving mechanism is started to finely adjust the position of the pump shell so as to ensure that the pump shell can stably rotate on the plurality of supporting wheels 2; then, the detecting seat 31 is moved to a position corresponding to the position to be detected of the pump housing, the detecting head 33 on the detecting rod 32 is abutted against the outer peripheral wall of the pump housing, and the vertical height of the detecting seat 31 on the slide 12 is adjusted, so that the detecting rod 32 is positioned at the initial position on the detecting seat 31.

After the preparation work is finished, the driving mechanism is started to enable the pump shell to rotate slowly at a constant speed, the detection head 33 elastically abuts against the periphery of the pump shell, in the process, the balance mechanism has the effect of driving the detection rod 32 to return to the initial position, so that when the detection head 33 abuts against the concave part in the outer wall of the pump shell, the detection rod 32 moves upwards from the initial position, and the first marking mechanism marks on the pump shell; when the detection head 33 collides with the outer projection of the outer wall of the pump casing, the detection lever 32 moves downward from the initial position, and at this time, the second marking mechanism marks on the pump casing. After the pump shell rotates for one circle, the roundness of the pump shell can be determined to be stored in the place of the concave or convex defect according to the mark line of the first mark mechanism and the mark line of the second mark mechanism, so that correction processing is convenient.

Specifically, referring to fig. 3, the balancing mechanism includes:

the balance plate 34 is arranged in the detection seat 31 in a sliding manner, and the detection rod 32 is fixedly connected to the middle part of the balance plate 34;

an upper elastic member 35, located between the balance plate 34 and the upper end of the detection seat 31, specifically configured as a spring sleeved on the detection rod 32;

the lower elastic piece 36 is positioned between the balance plate 34 and the lower end of the detection seat 31, and is specifically configured as a spring;

when the detecting lever 32 is at the initial position, both the upper elastic member 35 and the lower elastic member 36 are in a compressed state, and the elastic deformation force stored in the lower elastic member 36 is greater than the elastic deformation force stored in the upper elastic member 35.

Thus, when the detecting head 33 abuts against the concave portion of the pump casing, the elastic deformation force of the lower elastic member 36 overcomes the deformation force of the upper elastic member 35 and pushes the balance plate 34 to move upwards, so that the detecting rod 32 drives the detecting head 33 to abut against the outer wall of the pump casing; when the detection head 33 is abutted against the outer protrusion of the pump shell or the outer wall of the pump shell is abutted against pushing down and moving down, the detection rod 32 moves down and the lower elastic piece 36 is enabled to move down continuously to store elastic deformation force; therefore, through the combined action of the upper elastic part 35 and the lower elastic part 36, the detection head 33 can be always stably abutted against the outer wall of the pump shell, the detection rod 32 always has a trend of moving towards the return to the initial position, and the roundness of the pump shell can be stably detected.

Further, referring to fig. 1 and 4, the first marking mechanism includes a first marking needle 41 and a first ink bag 42 connected to the first marking needle 41, the second marking mechanism includes a second marking needle 51 and a second ink bag 52 connected to the second marking needle 51, and the first ink bag 42 and the second ink bag 52 are filled with different colors of ink, such as white and black, and green and red, which are of colors different from each other. The first marking needle 41 and the second marking needle 51 are both positioned on the side of the detecting rod 32 facing away from the rotation direction of the supporting wheel 2, so as to mark the detected part of the pump shell in time.

The first ink bag 42 and the second ink bag 52 are commonly connected with an ink supply assembly configured to control the first ink bag 42 to squeeze ink into the first marking needle 41 when the detection lever 32 moves up from the initial position, and to control the second ink bag 52 to squeeze ink into the second marking needle 51 when the detection lever 32 moves down from the initial position. Moreover, the vertical positions of the first marking needle 41 and the second marking needle 51 can be adjusted, so that the needle tip is close to pump shells with different outer diameters, and the specific vertical adjusting structure can be arranged conventionally, which is not repeated here.

Specifically, referring to fig. 4, the ink supply assembly includes an air supply cylinder 61 and a piston 62 slidably disposed in the air supply cylinder 61, wherein a first chamber 611 is disposed on one side of the piston 62 in the air supply cylinder 61, a second chamber 612 is disposed on the other side of the piston 62, the first chamber 611 is in communication with the first ink bag 42, and the second chamber 612 is in communication with the second ink bag 52; the first chamber 611, the piston 62, and the second chamber 612 are disposed in this order in the axial direction of the air cylinder 61, and the air cylinder 61 is arranged horizontally in order to eliminate the influence of the gravity of the piston 62 itself.

And the air supply cylinder 61 is provided with a control module for controlling the movement of the piston 62 into the first chamber 611 or the second chamber 612; the detection seat 31 is provided with a detection module for detecting the moving state of the detection rod 32; the detection module is in control connection with the control module.

So configured, when the detection module detects that the detection rod 32 moves upward from the initial position, the control module controls the piston 62 to move into the first chamber 611, and air in the first chamber 611 is pressed into the first ink bag 42, so that ink in the first ink bag 42 is splashed on the outer peripheral wall of the pump casing from the needle opening of the first marking needle 41 to form a first mark for marking the concave part of the outer periphery of the pump casing; when the detection module detects that the detection rod 32 moves downwards from the initial position, the control module controls the piston 62 to move into the second chamber 612, air in the second chamber 612 is extruded into the second ink bag 52, so that ink in the second ink bag 52 is splashed on the outer peripheral wall of the pump shell from the needle opening of the second marking needle 51 to form a second mark for marking the concave part of the outer periphery of the pump shell. Thereby, an automatic marking effect of the first marking needle 41 and the second marking needle 51 when the detection lever 32 is in different detection states can be achieved.

Further, referring to fig. 4, the control module includes a first magnet 71 and a second magnet 72 respectively fixed on both sides of the piston 62, and a first electromagnet 73 and a second electromagnet 74 fixed in the air cylinder 61;

the first electromagnet 73 is arranged corresponding to the first magnet 71, and the first electromagnet 73 is magnetically repelled with the first magnet 71 after being electrified; the second electromagnet 74 is arranged corresponding to the second magnet 72, and the second electromagnet 74 is magnetically repelled with the second magnet 72 after being electrified; and the magnetic repulsive force of the first electromagnet 73 and the first magnet 71 is the same as the magnetic repulsive force of the second electromagnet 74 and the second magnet 72 when the first electromagnet 73 and the second electromagnet 74 are at the same current level, so that the piston 62 is held at the constant position in the air supply cylinder 61 when the detection lever 32 is at the initial position.

When the detection module detects that the detection rod 32 moves upwards, the second electromagnet 74 is controlled to be electrified and the first electromagnet 73 is controlled to be powered off; when the detection module detects that the detection rod 32 moves downwards, the first electromagnet 73 is controlled to be electrified and the second electromagnet 74 is controlled to be powered off; when the detection module detects that the detection lever 32 is located at the initial position, the first electromagnet 73 and the second electromagnet 74 are energized simultaneously.

And referring to fig. 3, the sensing module includes a first metal piece 81 and a second metal piece 82 mounted on the sensing seat 31, and a first metal contact 83 corresponding to the first metal piece 81 and a second metal contact 84 corresponding to the second metal piece 82 are provided on the balance plate 34;

when the first metal contact 83 slides against the first metal piece 81, the first electromagnet 73 is energized; when the second metal contact 84 slides against the second metal piece 82, the second electromagnet 74 is energized;

the first metal member 81 is disposed at a side close to the lower elastic member 36, and the second metal member 82 is disposed at a side close to the upper elastic member 35; only when the detecting lever 32 is reset to the initial position, the first metal contact 83 collides with the first metal member 81, and the second metal contact 84 collides with the second metal member 82.

Thus, when the detecting rod 32 moves up from the initial position, the balance plate 34 drives the first metal contact 83 and the second metal contact 84 to move up, the first metal contact 83 breaks away from the interference with the first metal piece 81, the first electromagnet 73 is powered off, the magnetic repulsive force between the first electromagnet 73 and the first magnet 71 disappears, and the piston 62 moves into the first chamber 611 under the magnetic repulsive force between the second electromagnet 74 and the second magnet 72, so that the first marking needle 41 ejects ink; when the detecting rod 32 moves downwards from the initial position, the balance plate 34 drives the first metal contact 83 and the second metal contact 84 to move downwards, the second metal contact 84 breaks away from the interference with the second metal piece 82, the second electromagnet 74 is powered off, the magnetic repulsive force between the second electromagnet 74 and the second magnet 72 disappears, and the piston 62 moves into the second chamber 612 under the action of the magnetic repulsive force between the first electromagnet 73 and the first magnet 71, so that the second marking needle 51 ejects ink, and the effect of automatically controlling the position of the piston 62 according to the position state of the detecting rod 32 can be realized.

Also, in order to further distinguish the extent of the concave or convex of the pump casing, the first metal piece 81 and the second metal piece 82 are each provided as a sliding resistor, and the resistance value of one end of the first metal piece 81 and the second metal piece 82 near the balance plate 34 is the largest.

Thus, when the balance plate 34 drives the first metal contact 83 and the second metal contact 84 to move to a state of being far away from the initial position of the detection rod 32, the current in the electric loop of the first electromagnet 73 or the second electromagnet 74 is larger, so that the larger the magnetic repulsive force between the first electromagnet 73 or the second electromagnet 74 and the corresponding first magnet 71 or the corresponding second magnet 72 is, the larger the movement stroke of the piston 62 controlled in the air supply cylinder 61 is, the larger the corresponding air amount pressed into the first ink bag 42 or the corresponding second ink bag 52 is, and the larger the ink amount ejected by the first marking needle 41 or the second marking needle 51 is; therefore, when the degree of concave or convex of the pump shell is larger, the marking degrees of the first mark and the second mark are heavier, so that the main influence point of the roundness defect of the pump shell can be determined, and the subsequent correction is convenient.

In order to prevent the piston 62 from causing the ink to flow backward or the target ink to be discharged when the air cylinder 61 is reset, referring to fig. 4, the first chamber 611 and the first ink bag 42 are hermetically communicated with each other, and the communicating portion thereof is located above the liquid surface in the first ink bag 42; the second chamber 612 is in sealed communication with the second ink bag 52, and the communication therebetween is located above the liquid level in the second ink bag 52. Specifically, air is reserved in each of the first ink bag 42 and the second ink bag 52, and the bottom ends of the first marking needle 41 and the second marking needle 51 extend below the ink level.

Thus, for example, when the piston 62 moves in the air supply cylinder 61 toward the first chamber 611, the air in the first chamber 611 is pressed into the first ink bag 42, and the first marking needle 41 ejects ink; at this time, the volume of the second chamber 612 increases, air in the second ink bag 52 enters the second chamber 612, the stored ink in the second marking needle 51 is retracted into the second ink bag 52, and the communicating portion between the second chamber 612 and the second ink bag 52 is disposed above the liquid level in the second ink bag 52, so that the ink pumping phenomenon in the second ink bag 52 can be effectively avoided. When the piston 62 is further required to be reset, the piston 62 moves in a direction approaching the second chamber 612, the ink pumping phenomenon does not occur in the first ink bag 42, the air content in the second ink bag 52 is restored to the initial state, and the ink stored in the second marking needle 51 is restored, but the ink is not ejected, so that the accurate ink ejection actions of the first marking needle 41 and the second marking needle 51 can be ensured, and the phenomena such as error ejection or ink pumping are not caused.

The embodiment of the application also discloses a detection method for the production of the tubular pump, which is based on the detection device for the production of the tubular pump, and comprises the following steps:

s1, hoisting a pump shell to be detected on a plurality of supporting wheels 2, and driving the corresponding supporting wheels 2 to rotate through a driving mechanism so as to ensure that the pump shell to be detected rotates stably and then is detected;

s2, the detection seat 31 corresponds to a section to be detected of the pump shell, and the detection head 33 is abutted against the peripheral wall of the pump shell;

s3, starting a driving mechanism to enable the pump shell to slowly rotate, enabling the balance mechanism to ensure that the detection head 33 is always abutted against the outer peripheral wall of the pump shell, enabling the detection rod 32 to move upwards when the outer periphery of the pump shell is concave inwards, and enabling the first marking mechanism to mark on the pump shell; when the pump housing is out Zhou Waitu, the detection rod 32 moves down, and the second marking mechanism marks on the pump housing;

s4, inspecting and maintaining the whole roundness defect part of the pump shell according to different color marks of the first marking mechanism and the second marking mechanism on the periphery of the pump shell.

The implementation principle of the detection device for the production of the tubular pump is as follows:

after a pump shell to be tested is hoisted to a plurality of supporting wheels 2 by a crane or a traveling crane, a driving mechanism is started to enable the pump shell to slowly rotate at a constant speed, a detection head 33 is elastically abutted against the outer wall of the pump shell, when the detection head 33 is abutted against a concave part in the outer wall of the pump shell, a detection rod 32 moves upwards from an initial position, a second electromagnet 74 is controlled to be electrified, a first electromagnet 73 is controlled to be powered off, a piston 62 moves into a first cavity 611 under the action of magnetic repulsive force between the second electromagnet 74 and the second magnet 72, and a first marking needle 41 is enabled to jet ink to the concave part in the periphery of the pump shell; when the detection head 33 abuts against the outer projection of the outer wall of the pump casing, the detection rod 32 moves downwards from the initial position, the first electromagnet 73 is controlled to be electrified and the second electromagnet 74 is controlled to be powered off, and the piston 62 moves into the second chamber 612 under the action of magnetic repulsive force between the first electromagnet 73 and the first magnet 71, so that the second marking needle 51 ejects ink to the outer peripheral projection of the pump casing. After the pump shell rotates for one circle, the roundness of the pump shell can be determined to be stored in the place of the concave or convex defect according to the mark line of the first mark mechanism and the mark line of the second mark mechanism, so that correction processing is convenient.

Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The terms "first," "second," "third," and the like in the description and in the claims, are not used for any order, quantity, or importance, but are used for distinguishing between different elements. The terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprising" or "comprises", and the like, is intended to mean that elements or items that are present in front of "comprising" or "comprising" are included in the word "comprising" or "comprising", and equivalents thereof, without excluding other elements or items. "upper", "lower", "left", "right", etc. are used merely to denote relative positional relationships, which may also change accordingly when the absolute position of the object to be described changes.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (5)

1. A detection device for production of a through-flow pump, comprising:

a base (1);

the support wheels (2) are provided with a plurality of support wheels (2) which are rotatably arranged on the base (1), and the support wheels (2) are arranged in two rows and are coplanar with the axes of the support wheels (2) in the same row;

the driving mechanism is arranged on the base (1) and is used for driving the supporting wheels (2) to rotate in the same direction;

the detection seat (31) is arranged on the base (1) and is positioned between the two rows of the bearing wheels (2);

the detection rod (32) is vertically and elastically arranged in the detection seat (31), and the upper end of the detection rod is fixedly connected with a detection head (33) which is used for propping against the pump shell;

the balancing mechanism is arranged in the detection seat (31) and is used for balancing and resetting the vertical position of the detection rod (32);

a first marking mechanism provided on one side of the detection lever (32) and configured to mark on the pump casing when the detection lever (32) moves up from an initial position;

a second marking mechanism provided on one side of the detection lever (32) and configured to mark on the pump casing when the detection lever (32) moves down from an initial position;

the first marking mechanism and the second marking mechanism are different in marking form;

wherein, balance mechanism includes:

the balance plate (34) is arranged in the detection seat (31) in a sliding manner, and the detection rod (32) is fixedly connected to the balance plate (34);

an upper elastic member (35) located between the balance plate (34) and the upper end of the detection seat (31);

a lower elastic member (36) positioned between the balance plate (34) and the lower end of the detection seat (31);

when the detection rod (32) is positioned at the initial position, the upper elastic piece (35) and the lower elastic piece (36) are in a compressed state;

the first marking mechanism comprises a first marking needle (41), a first ink bag (42) connected with the first marking needle (41), the second marking mechanism comprises a second marking needle (51) and a second ink bag (52) connected with the second marking needle (51), and the colors of ink filled in the first ink bag (42) and the second ink bag (52) are different;

the first ink bag (42) and the second ink bag (52) are connected with an ink supply assembly, and the ink supply assembly is configured to control the first ink bag (42) to squeeze ink into the first marking needle (41) when the detection rod (32) moves upwards from an initial position and control the second ink bag (52) to squeeze ink into the second marking needle (51) when the detection rod (32) moves downwards from the initial position;

the ink supply assembly comprises an air supply cylinder (61) and a piston (62) arranged in the air supply cylinder (61) in a sliding manner, a first chamber (611) is arranged on one side of the piston (62) in the air supply cylinder (61), a second chamber (612) is arranged on the other side of the piston (62), the first chamber (611) is communicated with the first ink bag (42), and the second chamber (612) is communicated with the second ink bag (52);

a control module for controlling the piston (62) to move into the first chamber (611) or the second chamber (612) is arranged on the air supply cylinder (61);

the detection seat (31) is provided with a detection module for detecting the moving state of the detection rod (32);

the detection module is in control connection with the control module;

the control module comprises a first magnet (71) and a second magnet (72) which are fixedly connected to two sides of the piston (62) respectively, and a first electromagnet (73) and a second electromagnet (74) which are fixedly connected in the air supply cylinder (61);

the first electromagnet (73) is arranged corresponding to the first magnet (71), and the first electromagnet (73) is magnetically repelled with the first magnet (71) after being electrified;

the second electromagnet (74) is arranged corresponding to the second magnet (72), and the second electromagnet (74) is magnetically repelled with the second magnet (72) after being electrified;

when the detection module detects that the detection rod (32) moves upwards, the second electromagnet (74) is controlled to be electrified and the first electromagnet (73) is controlled to be powered off; when the detection module detects that the detection rod (32) moves downwards, the first electromagnet (73) is controlled to be electrified and the second electromagnet (74) is controlled to be powered off;

when the detection module detects that the detection rod (32) is positioned at the initial position, the first electromagnet (73) and the second electromagnet (74) are electrified at the same time;

the detection module comprises a first metal piece (81) and a second metal piece (82) which are arranged on the detection seat (31), and a first metal contact (83) corresponding to the first metal piece (81) and a second metal contact (84) corresponding to the second metal piece (82) are arranged on the balance plate (34);

-said first electromagnet (73) is energized when said first metal contact (83) slides against said first metal piece (81); -said second electromagnet (74) is energized when said second metal contact (84) slides against said second metal piece (82);

the first metal piece (81) is arranged on one side close to the lower elastic piece (36), and the second metal piece (82) is arranged on one side close to the upper elastic piece (35); the first metal contact (83) abuts against the first metal piece (81) only when the detection lever (32) is reset to the initial position, and the second metal contact (84) abuts against the second metal piece (82).

2. The detection device for production of the through-flow pump according to claim 1, wherein the first metal piece (81) and the second metal piece (82) are both provided as sliding resistors, and the resistance value of one end of the first metal piece (81) and the second metal piece (82) close to the balance plate (34) is the largest.

3. The device according to claim 1, wherein the detecting head (33) is detachably connected to the detecting rod (32).

4. The detection device for the production of the through-flow pump according to claim 1, wherein the first chamber (611) is communicated with the first ink bag (42) in a sealing way, and the communication part of the first chamber and the first ink bag is positioned above the liquid level in the first ink bag (42);

the second chamber (612) is communicated with the second ink bag (52) in a sealing way, and the communicating part of the second chamber and the second ink bag is positioned above the liquid level in the second ink bag (52).

5. A method for detecting production of a through-flow pump based on the detection device for production of a through-flow pump according to any one of claims 1 to 4, characterized by comprising the steps of:

s1, hoisting a pump shell to be detected on a plurality of bearing wheels (2), and driving the corresponding bearing wheels (2) to rotate through the driving mechanism so as to ensure that the pump shell to be detected rotates stably and then is detected;

s2, enabling the detection seat (31) to correspond to a section to be detected of the pump shell, and enabling the detection head (33) to be abutted against the peripheral wall of the pump shell;

s3, starting the driving mechanism to enable the pump shell to slowly rotate, enabling the balance mechanism to ensure that the detection head (33) is always abutted against the outer peripheral wall of the pump shell, enabling the detection rod (32) to move upwards when the outer periphery of the pump shell is concave, and enabling the first marking mechanism to mark on the pump shell; when the pump shell is out of Zhou Waitu, the detection rod (32) moves downwards, and the second marking mechanism marks on the pump shell;

s4, inspecting and maintaining the whole roundness defect part of the pump shell according to the marks of different colors on the periphery of the pump shell by the first marking mechanism and the second marking mechanism.