CN220498211U - Welding jig for flange stop block of water meter - Google Patents

Abstract

The utility model provides a welding jig for a water meter flange stop block, which comprises a base, wherein a mandrel is fixed on the upper end surface of the base, the outer diameter of the mandrel is slightly smaller than the inner diameter of a water meter connecting pipe sleeved outside the mandrel, and a supporting seat A is sleeved on the mandrel; the rotatable pressing mechanism is further fixed on the base beside the mandrel, a pressing head capable of moving up and down and locking is arranged in the pressing mechanism, and a stop block placed in the U-shaped groove of the connecting pipe can be pressed on the bottom surface of the circular groove in the flange when the pressing head is pressed down. According to the utility model, the mandrel which can be used for sleeving the connecting pipe on the base is fixed on the base, the movement of the connecting pipe is limited by the mandrel, and the rotatable pressing mechanism is arranged on the base beside the mandrel, before the stop dog is welded on the connecting pipe, the flange is sleeved on the outer spigot of the connecting pipe, and the pressing mechanism can be used for pressing the stop dog on the flange, so that the stop dog can be effectively prevented from moving.

Description

Welding jig for flange stop block of water meter

Technical Field

The utility model relates to the technical field of water meter processing, in particular to a welding jig for a flange stop block of a water meter.

Background

The water meter mainly comprises three parts, as shown in fig. 6, which are respectively: the water meter comprises a water meter body, a flange and a connecting pipe. The connecting pipe is inserted into the inner hole of the flange and then welded with the interface of the end part of the water meter body; the mouth of pipe department of connecting pipe is equipped with radial direction outside convex protruding edge, and protruding edge card is on the up end of circular recess tank bottom in the flange, and the flange just is arranged in between connecting pipe protruding edge and the water gauge body like this, and after the flange at water gauge both ends passes through the flange with waterway pipeline and links, the flange outwards pulls the connecting pipe through protruding edge to install the water gauge in the pipeline.

When the connecting pipe is welded with the connector, the flange and the convex edge of the connecting pipe are required to be fixed, so that the flange is prevented from interfering welding operation after falling under the action of gravity. At present, a fixing mode that a connecting pipe and a flange are stuck together by waterproof double-sided adhesive tape is adopted, and the phenomenon that the flange falls off due to adhesive opening often occurs, so that the welding operation cannot be smoothly implemented.

For the above reasons, it has been proposed to first sleeve the flange and the connecting tube together, then weld several stoppers on the flange of the connecting tube, and clamp the connecting tube in the through hole in the middle of the flange with the other end of the stopper, so that the flange sleeved on the connecting tube will not fall off. The problem is that the size of the stop block is small, and the stop block is not suitable for clamping and easy to move during welding, so that the welding operation cannot be smoothly performed.

Disclosure of Invention

In view of the above, the present utility model provides a welding jig that can press a stopper against a flange when the flange and a connection pipe are preassembled, so that the stopper cannot be deviated.

For this reason, the application provides following technical scheme: the utility model provides a water gauge flange dog welding jig, includes the base, be fixed with the dabber on the up end of base, the external diameter of dabber is slightly less than the internal diameter of the water gauge connecting tube of its outside suit, the cover of dabber is equipped with supporting seat A, supporting seat A's lower terminal surface and base butt; the rotatable pressing mechanism is further fixed on the base beside the mandrel, a pressing head capable of moving up and down and locking is arranged in the pressing mechanism, the pressing head is suspended above a connecting pipe sleeved on the mandrel and a water meter flange, and a stop block placed in a U-shaped groove of the connecting pipe can be pressed on the bottom surface of the circular groove in the flange when the pressing head is pressed down, so that the stop block can be kept in a static state when being welded on the groove wall of the U-shaped groove.

Further, the hold-down mechanism includes: the support seat B is fixed on the upper end face of the base beside the mandrel, and a cylinder is arranged in the vertical direction of the support seat B; the cylinder is sleeved with a rotating shaft, a rolling bearing is embedded in a round hole of the rotating shaft, a groove for installing a bearing retainer ring is further processed in the round hole, the bearing retainer ring can fix the rolling bearing in the round hole, and the rolling bearing is pressed on the cylinder through interference; the upper surface of the rotating shaft is fixedly provided with a cross rod, the vertical direction of the free end of the cross rod is provided with a handle screw which can be used as a pressure head in a threaded manner, and the handle screw is suspended above the mandrel.

Further, the jig further comprises N sleeves, a plurality of the sleeves are detachably sleeved on the mandrel from inside to outside, and the arrangement of the sleeves can enable the outer diameter of the mandrel to be enlarged so as to adapt to the installation requirements of connecting pipes with different inner diameters; the base is provided with two N rows of wire holes which are a group, the supporting seat B is fixed on the base through the wire holes by using screws, and the distance from the mandrel to the rotating shaft can be adjusted through the wire holes at different positions.

Further, a handle which can be convenient for moving the jig is arranged on the base.

Further, a rectangular groove is formed in the upper end face of the rotating shaft, and the cross rod is fastened to the rotating shaft by means of screws after being embedded into the groove.

Further, the support seat A is manufactured by machining with a good conductor of heat.

Further, the mandrel and the sleeve are made of resin materials.

The utility model has the following advantages:

1. according to the utility model, the mandrel on which the connecting pipe is sleeved is fixed on the base, the movement of the connecting pipe is limited by the mandrel, and the rotatable pressing mechanism is arranged on the base beside the mandrel, before the stop dog is welded on the connecting pipe, the flange is sleeved on the outer spigot of the connecting pipe, and the pressing mechanism can press the stop dog on the flange, so that the stop dog can be effectively prevented from moving.

2. According to the utility model, a plurality of sleeves matched with the mandrel are provided, and a plurality of groups of screw holes are processed on the base so as to adjust the distance between the handle screw, namely the pressure head, and the rotating shaft, so that the welding operation of flanges and connecting pipes with various specifications can be realized on one set of jig, and the utilization rate of the jig is improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to the drawings without inventive effort to a person skilled in the art.

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a schematic view of the structure of the present utility model in a use state.

Fig. 3 is a schematic view of the flange of fig. 2.

Fig. 4 is a schematic structural view of the connection pipe of fig. 2.

Fig. 5 is a schematic view of the stopper in fig. 2.

Fig. 6 is a schematic diagram of the assembled structure of the water meter body, the connecting pipe and the flange.

In the figure: 1. a base; 1.1, a wire hole; 2. a supporting seat A; 3. a sleeve; 4. a mandrel; 5. a handle screw; 6. a cross bar; 7. a rotation shaft; 7.1, grooves; 8. a supporting seat B; 9. a handle; 1-9, a jig; 10. a flange; 10.1, a connecting surface; 10.2, through holes; 10.3, circular grooves; 11. a stop block; 12. a connecting pipe; 12.1, a fixed groove; 12.2, convex edges; 12.3, an outer spigot; 12.4, a tube body; 13. a water meter body; 13.1, interface.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The utility model discloses a welding jig 1-9 for a water meter flange stop block, which is shown in figures 1 and 2 and comprises a square base 1, wherein a mandrel 4 is fixed on the upper end surface of the base by a screw, a supporting seat A2 made of hot good conductor copper is sleeved on the mandrel, and the lower end surface of the supporting seat A is abutted with the upper end surface of the base; note that: to facilitate insertion of the meter connector 12, the outer diameter of the mandrel is less than about 0.1mm to about 0.2mm of the inner diameter of the connector. A supporting seat B8 is fixed on the base at the inner side of the mandrel, a cylinder (not shown in the figure) is arranged in the vertical direction of the supporting seat B, and a rotating shaft 7 is sleeved on the cylinder; specifically, a rolling bearing is embedded in a round hole of the rotating shaft, and a groove for installing a bearing retainer ring is further processed in the round hole so that the bearing is fixed in the round hole; the rolling bearing is pressed on the cylinder by interference. A cross rod 6 is fixedly arranged on the rotating shaft, a screw hole penetrating through the upper end face and the lower end face is arranged at the free end of the cross rod, and a handle screw 5 is screwed in the screw hole.

As a preferred embodiment, as shown in fig. 1, the mandrel is further detachably sleeved with two sleeves 3 made of resin materials with different diameters from inside to outside, the bottom surfaces of the two sleeves are arranged on the supporting seat a, and the two sleeves and the upper end surface of the supporting seat a are positioned in the same plane; the outer diameters of the two sleeves can be selected according to the sizes of connecting pipes with different specifications; the outer diameter of each sleeve is slightly smaller than the inner diameter of the connecting pipe sleeved by the sleeve by 0.1-0.2mm; three rows of screw holes 1.1 are arranged on the base in total and are used for adjusting the relative positions of the handle screws and the mandrel so as to adapt to the requirements of welding three flanges 10 and connecting pipes with different specifications.

As a preferred implementation mode, the sleeve and the mandrel are made of resin materials, and the hardness of the sleeve and the mandrel is lower than that of the connecting pipe, so that the sleeve and the mandrel can be prevented from scratching the inner wall of the connecting pipe when the sleeve and the mandrel are sleeved with the connecting pipe.

As a preferred embodiment, two handles 9 are further installed at two opposite corners of the base, and when the jig needs to be moved, an operator can move the jig by taking the handles.

As a preferable implementation mode, a rectangular groove 7.1 is arranged on the upper end surface of the rotating shaft, the cross rod is fastened on the rotating shaft by a screw after being embedded into the groove, and the groove is arranged, so that the cross rod is more beneficial to driving the rotating shaft to rotate when the cross rod is stirred; for aesthetic reasons, the upper end surface of the cross bar and the upper end surface of the rotary shaft are preferably made flush.

As shown in fig. 3, the structure of the conventional flange is as follows: the flange is provided with a connecting surface 10.1 which is in butt joint with the waterway pipeline; the flange end face on the opposite side of the connecting face is provided with a circular groove 10.3, and the middle of the circular groove is provided with a through hole 10.2 for inserting a connecting pipe.

As shown in fig. 4, the upper part of the conventional connecting pipe body is provided with a circular flange 12.2 extending radially outwards, and the upper end surface of the flange is provided with an external spigot 12.3 which can be embedded into the flange through hole. Three broken notches are uniformly formed on the outer spigot through modification, and a U-shaped fixing groove 12.1 is arranged between each notch and the pipe body.

When in use, the supporting seat B is fixed on the base through the wire holes at proper positions by the screws according to the sizes of the connecting pipes and the water meter body, and then the mandrel or one sleeve or two sleeves are directly used according to the inner diameters of the pipes of different connecting pipes (for simplicity, only one case of using the mandrel is described below). The pipe body 12.4 of the connecting pipe is sleeved on the mandrel, and the outer spigot and the fixing groove are upward at the moment; then the flange is sleeved on the outer side of the outer spigot of the connecting pipe through the through hole, and the flange is supported by the convex edge; the connecting surface of the flange faces downwards and is abutted with the upper end surface of the supporting seat A, and the supporting seat A is made of metal copper and has good heat conductivity coefficient, so that heat generated by welding can be rapidly dissipated; then a stop block 11 shown in figure 6 is placed in each fixing groove, one part of the stop block is placed in the fixing groove, and the other part of the stop block is placed in the circular groove of the flange; the cross bar is stirred by a hand, so that the handle screw is arranged above the stop block, the handle screw is rotated, and the stop block is pressed on the bottom surface of the annular groove by the end part of the handle screw, so that the stop block is kept in a static state; and then welding the stop block on the wall of the fixed groove in a spot welding mode by using a welding machine. When the three stop blocks are welded, the stop block plays a limiting role, so that the connecting pipe is clamped in the through hole of the flange; when the connecting pipe and the connector are welded, the flange is supported below the bottom of the annular groove below the flange, so that the flange cannot fall down due to the action of gravity, and the welding operation of the connecting pipe and the water meter body is facilitated.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims (7)

1. A welding jig for a water meter flange stop block is characterized in that: the water meter connecting pipe comprises a base, wherein a mandrel is fixed on the upper end surface of the base, the outer diameter of the mandrel is slightly smaller than the inner diameter of a water meter connecting pipe sleeved outside the mandrel, a supporting seat A is sleeved on the mandrel, and the lower end surface of the supporting seat A is abutted with the base; the rotatable pressing mechanism is further fixed on the base beside the mandrel, a pressing head capable of moving up and down and locking is arranged in the pressing mechanism, the pressing head is suspended above a connecting pipe sleeved on the mandrel and a water meter flange, and a stop block placed in a U-shaped groove of the connecting pipe can be pressed on the bottom surface of the circular groove in the flange when the pressing head is pressed down, so that the stop block can be kept in a static state when being welded on the groove wall of the U-shaped groove.

2. The welding jig for a water meter flange stop according to claim 1, wherein: the hold-down mechanism includes: the support seat B is fixed on the upper end face of the base beside the mandrel, and a cylinder is arranged in the vertical direction of the support seat B; the cylinder is sleeved with a rotating shaft, a rolling bearing is embedded in a round hole of the rotating shaft, a groove for installing a bearing retainer ring is further processed in the round hole, the bearing retainer ring can fix the rolling bearing in the round hole, and the rolling bearing is pressed on the cylinder through interference; the upper surface of the rotating shaft is fixedly provided with a cross rod, the vertical direction of the free end of the cross rod is provided with a handle screw which can be used as a pressure head in a threaded manner, and the handle screw is suspended above the mandrel.

3. The welding jig for a water meter flange stop according to claim 2, wherein: the jig further comprises N sleeves, a plurality of the sleeves are detachably sleeved on the mandrel from inside to outside, and the arrangement of the sleeves can enlarge the outer diameter of the mandrel to adapt to the installation requirements of connecting pipes with different inner diameters and sizes; the base is provided with two N rows of wire holes which are a group, the supporting seat B is fixed on the base through the wire holes by using screws, and the distance from the mandrel to the rotating shaft can be adjusted through the wire holes at different positions.

4. The welding jig for a water meter flange stop according to claim 1, wherein: the base is provided with a handle which can be used for conveniently moving the jig.

5. The welding jig for a water meter flange stop according to claim 2, wherein: the upper end face of the rotating shaft is provided with a rectangular groove, and the cross rod is fastened on the rotating shaft by a screw after being embedded into the groove.

6. The welding jig for a water meter flange stop according to claim 1, wherein: the support seat A is manufactured by machining a good conductor with heat.

7. A meter flange stop welding jig according to claim 3, wherein: the mandrel and the sleeve are made of resin materials.