Water meter cover assembling device
By designing a top-top clamping assembly device for water meter, combined with the use of a laser lettering machine, the problem of the head and the watch cover number is not corresponding to, and the precise assembly and radial engraving of the water meter is achieved, and assembly errors and scrapping are avoided.
Patent Information
- Application Number
- CN202421808271.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-07-29
AI Technical Summary
During the assembly process of existing water meter, the watch head does not correspond to the watch number of the watch cover, resulting in assembly errors, and the watch cover and the watch head are difficult to disassemble, which is easy to cause scrapping.
A water meter meter cover assembly device is designed, including the bottom steel plate, the top steel plate and the side steel plate. The upper-top clamping and assembly of the meter head and the meter cover is achieved through the jacking drive cylinder and the arc notch, and the meter number of the meter cover is radial.
This device eliminates the problem that the watch head and the watch cover are not corresponding to the watch number, reduces the time and energy of workers to screen the watch cover, avoids the scrapping of the water meter, and achieves accurate radium engraving of the watch number.
Smart Images
Figure CN222831119U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mechanical manufacturing, in particular to a water meter cover assembly device. Background Art
[0002] During the preparation of the water meter, the movement is assembled into the copper case and the glass is sealed to form the meter head, and then the indication error is calibrated, and then the qualified meter head is assembled with the meter cover. Each water meter has its own number, and the movement and cover of the meter head are engraved with the meter number.
[0003] The traditional assembly process is to laser engrave the meter number on each meter cover first, and then the workers clamp the meter cover with the corresponding meter head according to the meter number. Specifically, there is a circle of convex ribs on the watch case of the meter head, and an elastic clip is provided on the inner wall of the opening of the meter cover. The worker puts the meter cover with the opening facing upward into the pit of the bottom plate of the press-fitting equipment, and then puts the meter head facing downward into the opening of the meter cover, and then starts the cylinder of the press-fitting equipment to press the meter head downward, so that the convex ribs of the meter head are forced downward to pass over the elastic clip and clamp the meter cover.
[0004] The above-mentioned downward pressing process can easily put the meter head into the meter cover for preliminary positioning, and the operation of the cylinder pressing down and clamping is also convenient, but there is a significant disadvantage: there are a large number of meter covers at the assembly site, and workers need to spend a lot of time and energy to find the only correct meter cover from the pile of meter covers; the slightest negligence may easily assemble the meter cover with the wrong meter head. This mismatch is catastrophic, because the clamping of the meter cover and the watch case is an interference fit, and the anti-disassembly structure design is made. Once assembled, it is difficult to disassemble without loss. Forced and violent disassembly will cause damage to the meter cover and the meter head or even scrap it. Utility Model Content
[0005] The technical problem to be solved by the utility model is to provide a water meter cover assembly device which can prevent the meter numbers of the meter head and the meter cover from not corresponding.
[0006] The technical solution of the utility model is to provide a water meter cover assembly device, which includes a bottom steel plate, a top steel plate and side steel plates, and the side steel plates are respectively fixed to the bottom steel plate and the top steel plate; the top steel plate is provided with a circular notch, and the side wall of the circular notch is a step surface which is smaller at the top and larger at the bottom, and the meter cover is clamped on the step surface of the circular notch; the meter cover opening faces downward and the meter head faces upward and is inserted into the meter cover opening; the bottom steel plate is provided with a lifting drive cylinder for lifting the meter head so that it is clamped with the meter cover; the upper step of the circular notch is provided with an arc-shaped notch for exposing the laser-engraved area of the top ring surface of the meter cover.
[0007] Compared with the prior art, the water meter cover assembly device using the above structure has the following advantages.
[0008] The working process of the device is to place and fix the bottom steel plate of the device on the working table of a laser engraving machine, and make the head of the laser engraving machine face downward to the arc-shaped notch of the top steel plate; preliminarily fit the meter cover and the meter head, keep the opening of the meter cover facing downward and the meter head facing upward, loosely support the meter head so that the meter cover is stuck into the step surface of the circular notch of the top steel plate, and then start the lifting drive cylinder until the piston rod of the lifting drive cylinder and the top steel plate clamp the meter head and the meter cover and then release, and then continue to lift the driving cylinder until the convex rib of the meter head is squeezed upward to pass through the elastic clamping strip on the inner wall of the meter cover, thereby realizing the clamping assembly of the meter head and the meter cover.
[0009] Because it is a top-up assembly, the meter head and the top ring surface of the meter cover are facing upward, so that the arc-shaped gap just exposes the laser engraved area of the top ring surface of the meter cover, so that the head of the laser engraving machine can pass through the arc-shaped gap to laser engrave the meter number on the meter cover. Therefore, two birds with one stone are killed. In one top-up step, the water meter is clamped while the meter cover and meter head are clamped together, and the laser engraved area of the top ring surface of the meter cover is exposed upward, which is convenient for laser engraving the meter number.
[0010] To be honest, the top-up clamping of this device requires that the meter head be supported upwards and the meter cover be clamped into the circular notch of the top steel plate before the driving cylinder is pushed up, while the prior art downward-pressing assembly only requires the meter head to be inserted into the meter cover with the meter head facing downwards and the meter cover to be placed into the pit before being pressed down. From the perspective of clamping assembly alone, the top-up operation of this application is not even as convenient as the downward-pressing process of the prior art. However, the value of this application's deliberate opposite approach is that the blank meter cover is first clamped to the meter head and then the meter number is stamped on the blank meter cover, which omits the process of workers selecting the only matching meter cover from a large number of meter covers, and eliminates the problem of water meters being scrapped due to the mismatch between the meter cover and the meter head in the prior art. Therefore, although the assembly process is slightly cumbersome, it omits the step of finding the corresponding meter cover, and cures the stubborn problem of meter cover mismatch and scrapping. Comparing the two, the advantages outweigh the disadvantages.
[0011] Preferably, the step on the circular notch is also hollowed out to form a positioning slot, and the positioning boss on the top ring surface of the meter cover is clamped in the positioning slot of the top steel plate; the top ring surface of the meter cover of commercially available water meters is provided with a positioning boss, and the center of the positioning boss is provided with a threaded hole and a bolt is screwed in, and the bolt is used to fix the electronic module of the water meter; the present application utilizes the existing positioning boss structure of the meter cover, and specifically sets the positioning slot to position the meter cover circumferentially, thereby ensuring that the meter number laser is within the predetermined laser engraving area.
[0012] As a further preferred embodiment, the side steel plate is L-shaped. The L-shaped side steel plate not only ensures strength, improves the integrity and firmness of the device, but also avoids the space on the front and left sides, making it easier to take out and put the water meter, making the operation more convenient.
[0013] As a further preference, a QR code is affixed to the meter head movement, and the water meter number is recorded in the QR code; the water meter cover assembly device also includes a barcode scanner, which is connected to the laser engraving machine signal; in this way, when the meter head and the meter cover are snapped together, only the barcode needs to be scanned to obtain the meter head number and send it to the laser engraving machine, ensuring the accuracy of the laser engraved number and reducing the error rate. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 The utility model is a structural schematic diagram of a water meter cover assembly device.
[0015] Figure 2 The utility model is a structural schematic diagram of a water meter cover assembly device after assembling a water meter.
[0016] Figure 3 It is a schematic diagram of the exploded structure of the water meter head and meter cover.
[0017] Figure 4 The utility model is an enlarged structural schematic diagram of a top steel plate of a water meter cover assembly device.
[0018] As shown in the figure: 1. bottom steel plate, 2. top steel plate, 3. side steel plate, 4. lifting drive cylinder, 5. circular notch, 5.1. step surface, 6. meter cover, 6.1. elastic clip, 6.2. laser engraved area, 7. meter head, 7.1. convex rib, 8. arc notch, 9. positioning bayonet, 10. positioning boss. DETAILED DESCRIPTION
[0019] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.
[0020] like Figure 1 to Figure 4 As shown, the utility model water meter cover assembly device comprises a bottom steel plate 1, a top steel plate 2 and a side steel plate 3, the side steel plate 3 is L-shaped, and the upper and lower ends of the side steel plate 3 are respectively fixed to the top steel plate 2 and the bottom steel plate 1.
[0021] The water meter cover assembly device of the present application is used in conjunction with a commercially available laser engraving machine. As is known to common sense, a commercially available laser engraving machine includes a work surface and a bracket, and the bracket is fixed with a laser head that emits laser light. The bottom steel plate 1 of the water meter cover assembly device of the present application is fixed to the work surface of the laser engraving machine, and the bottom steel plate 1 is provided with a jacking drive cylinder 4, and the jacking drive cylinder 4 of the present embodiment is preferably a pneumatic cylinder.
[0022] The top steel plate 2 is provided with a circular notch 5, and the side wall of the circular notch 5 is a stepped surface 5.1 with a small top and a large bottom; the opening of the meter cover 6 faces downward, and the meter head 7 faces upward, and the meter head 7 is initially inserted into the opening of the meter cover 6; the meter head 7 and the meter cover 6 are initially positioned and fitted but not clamped. The meter cover 6 is clamped on the stepped surface 5.1 of the circular notch 5 by hand support or by the cylinder. Then start the cylinder to continue pushing, so that the convex rib 7.1 of the meter head 7 can be squeezed into the elastic clamping strip 6.1 of the opening of the meter cover 6.
[0023] The upper step of the circular notch 5 of the top steel plate 2 is provided with an arc notch 8 for exposing the laser engraved area 6.2 on the top ring surface of the watch cover 6. The laser engraving machine head emits a laser through the arc notch 8 to engrave the watch number on the laser engraved area 6.2 on the top ring surface of the watch cover 6.
[0024] A positioning bayonet 9 is also hollowed out on the upper step of the circular notch 5 , and a positioning protrusion 10 on the top annular surface of the watch cover 6 is clamped in the positioning bayonet 9 of the top steel plate 2 .
[0025] The meter head 7 movement is pasted with a QR code, and the water meter number information is recorded in the QR code; the water meter cover 6 assembly device also includes a barcode scanner, which is connected to the laser engraving machine signal. More specifically, the laser engraving machine is connected to a main controller such as a computer, and the barcode scanner is also connected to the computer.
Claims
1. A water meter cover assembly device, characterized in that: It includes a bottom steel plate, a top steel plate and side steel plates, which are respectively fixed to the bottom steel plate and the top steel plate; the top steel plate is provided with a circular notch, the side wall of the circular notch is a step surface which is smaller at the top and larger at the bottom, and the meter cover is clamped on the step surface of the circular notch; the meter cover opening faces downward and the meter head faces upward and is inserted into the meter cover opening; the bottom steel plate is provided with a lifting drive cylinder for lifting the meter head so that it is clamped with the meter cover; the upper step of the circular notch is provided with an arc notch for exposing the laser-engraved area on the top ring surface of the meter cover.
2. The water meter cover assembly device according to claim 1, characterized in that: The upper step of the circular notch is also hollowed out with a positioning bayonet, and the positioning protrusion on the top ring surface of the watch cover is clamped in the positioning bayonet of the top steel plate.
3. The water meter cover assembly device according to claim 1, characterized in that: The side steel plates are L-shaped.
4. The water meter cover assembly device according to claim 1, characterized in that: A two-dimensional code is pasted on the meter head movement, and the water meter number is recorded in the two-dimensional code; the water meter cover assembly device also includes a barcode scanning gun, and the barcode scanning gun is connected to the laser engraving machine signal.