Fixture for detecting height of inner container of electromagnetic water meter

Abstract

The utility model relates to the technical field of processing and detection of water meters, in particular to a height detection jig for an inner container of an electromagnetic water meter. The device comprises a base, one side of the base is fixedly connected with a backboard support, one side of the backboard support is provided with a dial indicator, the upper side of the base is provided with an inner container placing seat, and a driving motor is installed in the base. The linear toggle clamp drives the dial indicator to move downwards, the dial indicator firstly makes contact with the calibration jig, the calibration jig conducts zero setting on the dial indicator, the accuracy of the dial indicator for detecting the inner container is improved, after zero setting of the dial indicator is completed, the inner container is fixed to the inner container containing base through the screw rod, then the dial indicator is close to the boss, and the dial indicator is fixed to the inner container containing base through the screw rod. A probe of the dial indicator is contacted with the boss, the driving motor is started to enable the inner container placing seat and the inner container to rotate, and in the rotating process of the inner container, whether the boss meets the standard or not is determined by observing the change of a pointer on the dial indicator to judge whether the height of the inner container is qualified or not.

Description

TECHNICAL FIELD

[0001] The utility model relates to the processing and detection technical field of water meter, concretely relates to the electromagnetic water meter inner container height detection fixture. BACKGROUND

[0002] The common intelligent electromagnetic water meter on the market has a copper-made cup-shaped inner container 9 in the meter body, and a liquid crystal display screen and a substrate are arranged in the inner container. The wall of the upper part of the inner container protrudes outward, and the protruding part forms an annular boss 91. A waterproof rubber ring 92 is arranged on the boss 91, and a glass cover 93 is pressed on the upper surface of the waterproof rubber ring 92. During manufacturing, the wall of the upper end of the glass cover 93 is bent inward by stamping, and then the glass cover 93 and the waterproof rubber ring 92 are pressed tightly. Under the joint action of the glass cover 93 and the waterproof rubber ring 92, the liquid crystal display screen and the substrate are encapsulated in the inner container.

[0003] As known from the above, the tightness of the wall of the inner container 9 and the waterproof rubber ring 92 is a key factor for determining whether the inner container leaks. Therefore, the height of the platform of the boss 91 on which the waterproof rubber ring 92 is arranged is very important. If the height is too high, the glass cover 93 may be broken due to excessive extrusion. If the height is too low, there will be a gap after stamping, and if there is a defect when helium detection is performed, the inner container 9 needs to be cut open, which not only wastes time, but also causes damage to the inner container 9 and the liquid crystal display screen, the substrate and other components arranged in the inner container. Therefore, the height of the boss 91 needs to be detected, and the inner container 9 with a processing defect is screened out in advance, so as to reduce the subsequent maintenance trouble. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing an electromagnetic water meter inner container height detection fixture to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides an electromagnetic water meter inner container height detection fixture, which comprises a base, a back plate support is fixedly connected to one side of the base, a micrometer is arranged on one side of the back plate support, an inner container placing seat is arranged on the upper side of the base, a driving motor is installed in the base, the rotating shaft of the driving motor is coaxially connected with the central axis of the inner container placing seat, the inner container is arranged on the upper side of the inner container placing seat, a guide rail sliding block is arranged on the back plate support near the middle part, a micrometer support is fixed to one side of the guide rail sliding block, a micrometer fixing seat is fixed to the end of the micrometer support away from the guide rail sliding block, the micrometer is installed on the micrometer fixing seat, the micrometer is used for detecting the flatness of the boss, and a straight-line elbow clamp is installed on the back plate support near the top end, one end of the straight-line elbow clamp is fixedly connected with the micrometer support, and the straight-line elbow clamp drives the micrometer support to move up and down, so that the micrometer support drives the micrometer to move up and down in the vertical direction.

[0006] As a further improvement of the present technical solution, a vertically arranged linear guide rail is fixed to one side of the backplane bracket close to the guide rail slider, and the guide rail slider is slidably arranged on the linear guide rail.

[0007] As a further improvement of the present technical solution, before the micrometer is used to test the inner liner, a calibration jig is provided on the inner liner placement seat, and a calibration reference point is provided on the calibration jig. When the micrometer moves downward, the probe of the micrometer contacts the calibration reference point on the calibration jig.

[0008] As a further improvement of the present technical solution, a placement groove is provided on the upper side of the inner liner placement seat, one end of the inner liner is inserted into the placement groove, and a screw is threadedly connected to the side wall of the inner liner placement seat, one end of the screw extends into the interior of the placement groove and is fixed with a polyurethane pad, and the screw pushes the polyurethane pad to squeeze the side wall of the inner liner.

[0009] As a further improvement of the present technical solution, a metal plate is fixedly mounted on the side wall of the liner placement seat, and a metal detection sensor is mounted on the upper side of the base via a support frame, and the metal detection sensor scans the metal plate.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] In the electromagnetic water meter inner tank height detection jig, the dial indicator is driven downward by a linear elbow clamp, so that the dial indicator first contacts the calibration jig, and the calibration jig adjusts the dial indicator to zero, thereby improving the accuracy of the dial indicator in detecting the inner tank. After the dial indicator is zeroed, the inner tank is fixed to the inner tank placement seat by a screw, and then the dial indicator and the boss are brought close to each other so that the probe of the dial indicator contacts the boss. The inner tank placement seat and the inner tank are rotated by starting the drive motor. During the rotation of the inner tank, the change of the pointer on the dial indicator is observed to determine whether the boss meets the standard and whether the inner tank height is qualified. Using this method to detect the flatness of the boss not only saves working time, but also ensures detection accuracy, and avoids the trouble of testing before assembling the inner tank and using an unqualified inner tank for assembly and then disassembling. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the utility model in which the overall structure is calibrated through the guide rail slider;

[0014] Figure 3 A schematic diagram of the structure of the utility model for testing the inner liner of the overall structure;

[0015] Figure 4The internal structure schematic view of the overall structure of the utility model;

[0016] Figure 5 The structure explosion schematic view of the inner container of the utility model.

[0017] The meanings of various reference numerals in the drawings are as follows:

[0018] 1, base; 11, driving motor; 2, back plate support; 21, linear guide rail; 3, linear elbow clamp; 4, inner container placing seat; 41, metal plate; 42, screw rod; 5, guide rail sliding block; 51, micrometer support; 52, micrometer fixed seat; 6, micrometer; 7, metal detection sensor; 8, calibration jig; 9, inner container; 91, boss; 92, waterproof rubber ring; 93, glass watch cover. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0020] In the description of the utility model, it should be understood that the orientations or position relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are the orientations or position relationships shown based on the drawings, and are only for the convenience of describing the utility model and simplifying the description, and are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0021] Embodiment 1

[0022] Please refer to Figures 1-5As shown, the embodiment provides an electromagnetic water meter inner container height detection jig, which comprises a base 1, one side of the base 1 is fixedly connected with a back plate support 2, one side of the back plate support 2 is provided with a micrometer 6, the micrometer 6 is used for detecting the flatness of the boss 91, a zero adjusting knob and a fixed jaw are arranged on the dial of the micrometer 6, the zero adjusting knob can rotate on the micrometer 6, which is used for adjusting the zero value of the micrometer 6, and the fixed jaw is used for fixing the position of the zero adjusting knob after adjustment, so that the micrometer 6 is at the zero value in the initial state, an inner container placing seat 4 is arranged on the upper side of the base 1, before testing the inner container 9 by the micrometer 6, the micrometer 6 needs to be adjusted to zero, at this time, a calibration jig 8 is arranged on the inner container placing seat 4, the calibration jig 8 is in U shape, a calibration reference point is arranged on the calibration jig 8, the calibration reference point is arranged at the position of the middle protruding surface on the upper side of the calibration jig 8, the height of the calibration reference point is the same as the standard height of the boss 91 to be detected, when the micrometer 6 moves down, the probe of the micrometer 6 contacts the calibration reference point on the calibration jig 8, when the probe and the calibration reference point on the calibration jig 8 contact, the display content on the dial of the micrometer 6 is observed at this time, when the dial pointer is not pointing to 0, the pointer on the dial is pointed to 0 by rotating the zero adjusting knob, after the pointer is pointed to 0, the position of the zero adjusting knob is fixed by the fixed jaw, so that this position is the position of the 0 degree point of the micrometer 6, by adjusting the 0 degree point of the micrometer 6, the accuracy of the micrometer 6 in measuring the flatness of the boss 91 is improved.

[0023] In order to make the micrometer 6 move up and down, make the micrometer 6 close to the calibration jig 8, a guide rail slider 5 is arranged at the position close to the middle of the back plate support 2 on one side, a vertical linear guide rail 21 is fixed on the side of the back plate support 2 close to the guide rail slider 5, the guide rail slider 5 is slidingly arranged on the linear guide rail 21, the position of the guide rail slider 5 is limited by the linear guide rail 21, so that the guide rail slider 5 can slide along the direction of the linear guide rail 21, and a micrometer support 51 is fixed on one side of the guide rail slider 5, a micrometer fixing seat 52 is fixed on the end of the micrometer support 51 away from the guide rail slider 5, the micrometer 6 is installed on the micrometer fixing seat 52, and a linear elbow clamp 3 is installed at the position close to the top of the back plate support 2, one end of the linear elbow clamp 3 is fixedly connected with the micrometer support 51, the linear elbow clamp 3 comprises a turnover rod hinged to the back plate support 2, a connecting rod is hinged to the turnover rod away from the hinge position of the back plate support 2, one end of the connecting rod is hinged to a pull rod, one end of the pull rod is fixed to the micrometer support 51, a sliding sleeve is slidingly arranged on the pull rod, and the sliding sleeve is also fixed to the back plate support 2, when the turnover rod is turned up, the turnover rod pulls the connecting rod, and the pull rod pulls the micrometer support 51 to move upward, when the turnover rod is turned down, the turnover rod presses the connecting rod downward, the connecting rod presses the pull rod downward, and the micrometer support 51 moves downward, through the up-down rotation of the turnover rod, the linear elbow clamp 3 drives the micrometer support 51 to move up and down, and then the micrometer support 51 drives the micrometer 6 to move up and down in the vertical direction.

[0024] After the micrometer 6 is zeroed by the guide rail slider 5, the micrometer 6 can detect the inner container 9 at this time, at this time, the inner container 9 needs to be arranged on the upper side of the inner container placing seat 4, the inner container placing seat 4 supports the inner container 9, in order to enhance the stability of the inner container 9 placed on the inner container placing seat 4, a placing groove is arranged on the upper side of the inner container placing seat 4, one end of the inner container 9 is inserted into the placing groove, and a screw rod 42 is threadedly connected to the side wall of the inner container placing seat 4, one end of the screw rod 42 extends into the inside of the placing groove and is fixed with a polyurethane pad, after one end of the inner container 9 is inserted into the inside of the placing groove, the screw rod 42 is rotated, one end of the screw rod 42 moves into the placing groove, the screw rod 42 pushes the polyurethane pad to extrude the side wall of the inner container 9, so as to fix the inner container 9 in the placing groove.

[0025] A boss 91 is provided on the upper side of the inner liner 9. After the position of the inner liner 9 is fixed, the micrometer 6 is driven downward by the linear elbow clamp 3 so that the probe of the micrometer 6 contacts the boss 91. At this time, the pointer on the micrometer 6 is near the position of 0 degrees. Then a driving motor 11 is installed inside the base 1. The rotating shaft of the driving motor 11 is coaxially connected to the central axis of the inner liner placement seat 4. The driving motor 11 drives the inner liner placement seat 4 to rotate together with the inner liner 9 along the position of the central axis. The probe of the micrometer 6 will change the contact position with the boss 91 as the inner liner 9 rotates. At the same time, a metal plate 41 is fixedly installed on the side wall of the inner liner placement seat 4. A metal detection sensor 7 is installed on the upper side of the base 1 through a support frame. The inner liner placement seat 4 is not made of metal. The metal detection sensor 7 scans the metal plate 41. When the driving motor 11 drives the liner placement seat 4 and the liner 9 to rotate, the metal detection sensor 7 scans the metal plate 41. One scan indicates that the liner placement seat 4 rotates one circle. The number of times the metal detection sensor 7 scans is used to calculate the number of rotations of the liner 9. During the rotation of the liner 9, the probe of the micrometer 6 will change the contact position with the boss 91 as the liner 9 rotates, so as to obtain the overall flatness of the boss 91. During the rotation of the liner 9, the changes in the pointer on the micrometer 6 are observed to determine whether the boss 91 meets the standard to judge whether the height of the liner is qualified. Using this method to detect the flatness of the boss 91 not only saves working time, but also ensures detection accuracy, and avoids the trouble of testing before assembling the liner and using unqualified liner 9 for assembly and then disassembly.

[0026] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. An electromagnetic water meter inner tank height detection jig, comprising a base (1), one side of the base (1) being fixedly connected to a back plate bracket (2), and one side of the back plate bracket (2) being provided with a dial indicator (6), characterized in that: An inner liner placement seat (4) is provided on the upper side of the base (1), a driving motor (11) is installed inside the base (1), a rotating shaft of the driving motor (11) is coaxially connected to the central axis of the inner liner placement seat (4), an inner liner (9) is provided on the upper side of the inner liner placement seat (4), a guide rail slider (5) is provided near the middle of one side of the back plate bracket (2), a micrometer bracket (51) is fixed on one side of the guide rail slider (5), and the micrometer bracket (51) is located at one end away from the guide rail slider (5). A dial indicator fixing seat (52) is fixed, and the dial indicator (6) is installed on the dial indicator fixing seat (52). The dial indicator (6) is used to detect the flatness of the boss (91), and a straight line toggle clamp (3) is installed near the top of the back plate bracket (2). One end of the straight line toggle clamp (3) is fixedly connected to the dial indicator bracket (51). The straight line toggle clamp (3) drives the dial indicator bracket (51) to move up and down, so that the dial indicator bracket (51) drives the dial indicator (6) to move up and down in the vertical direction.

2. The electromagnetic water meter inner tank height detection jig according to claim 1 is characterized by: A vertically arranged linear guide rail (21) is fixed to one side of the back plate bracket (2) close to the guide rail slider (5), and the guide rail slider (5) is slidably arranged on the linear guide rail (21).

3. The electromagnetic water meter inner tank height detection jig according to claim 1 is characterized in that: Before the micrometer (6) tests the inner liner (9), a calibration jig (8) is provided on the inner liner placement seat (4), and a calibration reference point is provided on the calibration jig (8). When the micrometer (6) moves downward, the probe of the micrometer (6) contacts the calibration reference point on the calibration jig (8).

4. The electromagnetic water meter inner tank height detection jig according to claim 1 is characterized by: A placement groove is provided on the upper side of the liner placement seat (4), one end of the liner (9) is inserted into the placement groove, and a screw (42) is threadedly connected to the side wall of the liner placement seat (4), one end of the screw (42) extends into the interior of the placement groove and is fixed with a polyurethane pad, and the screw (42) pushes the polyurethane pad to squeeze the side wall of the liner (9).

5. The electromagnetic water meter inner tank height detection jig according to claim 1 is characterized in that: A metal plate (41) is fixedly mounted on the side wall of the liner placement seat (4), and a metal detection sensor (7) is mounted on the upper side of the base (1) via a support frame, and the metal detection sensor (7) scans the metal plate (41).

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