Water meter housing ring welding apparatus

Abstract

The utility model discloses water meter shell middle circle welding equipment, include: machine table, fixed fixture is set up on the machine table for positioning water meter shell, sensing component is set up on the machine table, has two horizontal opposite settings, and is located the first sensor and second sensor of fixed fixture both sides, a plurality of emission source and receiving source of horizontal arrangement are set up one to one on the first sensor and the second sensor, welding mechanism, when water meter shell horizontal positioning is on fixed fixture, because the plane of water meter shell top is horizontal, so a plurality of receiving source can one to one corresponding acceptance response to the light source of emission source emission, show that water meter shell is horizontal and place, when water meter shell is not horizontal and place, water meter shell top can shield the light source of emission source emission, lead to receiving source can not accept light source, this shows that water meter shell is not horizontal and place, and then can detect whether water meter shell is horizontal and place before middle circle welding, guarantee the welding quality of subsequent.

Description

TECHNICAL FIELD

[0001] The utility model relates to water meter shell processing technical field more specifically, relate to a water meter shell middle circle welding equipment. BACKGROUND

[0002] Water meter shell is the protective structure around the water meter measurement unit outside, aims at protecting the internal precision mechanical or electronic measurement components of water meter from the influence of external environmental factors, such as physical damage, corrosion, dirt invasion etc. In the water meter shell processing process, the middle circle needs to be installed in the water meter shell, and the middle circle plays the role of positioning and bearing the valve body inside the water meter shell.

[0003] In the prior art, the middle circle is generally pressed into the middle position of the water meter shell, and then the water meter shell is placed on the fixed jig for fixation, and then welding is carried out, and the horizontal position of the water meter shell is not detected before welding, which will directly affect the welding quality of the middle circle. UTILITY MODEL CONTENTS

[0004] In view of the problems existing in the prior art, the utility model aims at providing a water meter shell middle circle welding equipment which can detect the horizontal position of the water meter shell before welding.

[0005] To solve the above problems, the utility model adopts the following technical scheme.

[0006] The water meter shell middle circle welding equipment comprises:

[0007] A machine table;

[0008] A fixed jig is arranged on the machine table and used for positioning the water meter shell;

[0009] A sensing assembly is arranged on the machine table and comprises a first sensor and a second sensor which are arranged horizontally opposite and located on both sides of the fixed jig; a plurality of emission sources and a plurality of receiving sources are arranged on the first sensor and the second sensor in a horizontal manner in a one-to-one correspondence; and

[0010] A welding mechanism is arranged on the machine table and used for welding the middle circle;

[0011] When the water meter shell is horizontally placed on the fixed jig, the plurality of emission sources and the plurality of receiving sources are slightly higher than the horizontal plane of the top of the water meter shell.

[0012] Compared with the prior art, the utility model has at least the following beneficial effects:

[0013] When the water meter shell is horizontally positioned on the fixing jig, since the plane of the top of the water meter shell is horizontal, a plurality of receiving sources can one by one correspondingly receive the light source emitted by the emitting source, indicating that the water meter shell is horizontally placed; when the water meter shell is not horizontally placed, the top of the water meter shell will shield the light source emitted by the emitting source, so that the receiving source cannot receive the light source, which indicates that the water meter shell is not horizontally placed, and thus whether the water meter shell is horizontally placed can be detected before the middle ring is welded, to ensure the welding quality.

[0014] Preferably, the fixing jig comprises a clamp arranged on the machine table, and the water meter shell is clamped on the clamp.

[0015] Preferably, the fixing jig further comprises a mold sleeve clamped on the clamp, and the water meter shell is embedded and positioned in the mold sleeve.

[0016] Preferably, the fixing jig further comprises a rotating driving member arranged on the machine table, and an output end of the rotating driving member is connected to the clamp to drive the clamp to rotate.

[0017] Preferably, the sensing assembly further comprises a support arranged on the machine table and used for mounting the first sensor and the second sensor.

[0018] Preferably, the sensing assembly further comprises:

[0019] a photoelectric element connected to the first sensor and / or the second sensor, for converting a light signal into an electric signal;

[0020] a control system connected to the photoelectric element; and

[0021] an alarm connected to the control system and used for indicating that the water meter shell is not horizontally placed.

[0022] Preferably, the sensing assembly adopts a grating sensor.

[0023] Preferably, the welding mechanism comprises:

[0024] a laser welder used for welding the middle ring; and

[0025] a moving assembly arranged on the machine table and having an output end connected to the laser welder, for driving the laser welder to move.

[0026] Preferably, the moving assembly comprises:

[0027] a Y-axis driving member arranged on the machine table and driven in a direction close to and away from the fixing jig; and

[0028] a Z-axis driving member arranged at an output end of the Y-axis driving member and driven in a vertical direction.

[0029] The laser welder is arranged at the output end of the Z-axis driving element.

[0030] Preferably, the fixing jig and the sensing assembly are arranged in at least two groups along the X-axis; the moving assembly further comprises an X-axis driving element arranged on the machine table, and the Y-axis driving element is arranged at the output end of the X-axis driving element.

[0031] Preferably, the moving assembly further comprises a fine adjustment driving element arranged at the output end of the Z-axis driving element, the output direction of the fine adjustment driving element is consistent with the output direction of the Y-axis driving element, and the laser welder is rotatably arranged at the output end of the fine adjustment driving element.

[0032] Preferably, the laser welder comprises:

[0033] a laser welding head arranged at the output end of the fine adjustment driving element, for welding the centering ring with a focused laser beam; and

[0034] a laser generating system connected with the laser welding head. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0036] Figure 2 It is a schematic diagram of the cooperation of the fixing jig and the sensing assembly of the utility model;

[0037] Figure 3 It is a schematic diagram of the cooperation of the driving element and the clamp of the utility model;

[0038] Figure 4 It is a top view of the first sensor and the second sensor of the utility model;

[0039] Figure 5 It is a schematic diagram of the welding mechanism of the utility model;

[0040] Figure 6 It is a schematic diagram of the connection of the sensing assembly of the utility model.

[0041] Explanation of reference numerals in the drawings:

[0042] 1, machine table; 2, fixing jig; 21, clamp; 22, die sleeve; 23, rotary driving element; 3, sensing assembly; 31, first sensor; 32, second sensor; 33, emission source; 34, receiving source; 35, supporting element; 5, welding mechanism; 51, laser welder; 511, laser welding head; 512, laser generating system; 52, Y-axis driving element; 53, Z-axis driving element; 54, X-axis driving element; 55, fine adjustment driving element; 6, water meter shell. Detailed Implementation

[0043] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0044] refer to Figure 1 and Figure 4 The water meter casing middle ring welding equipment includes: a machine base 1, a fixing fixture 2, a sensing component 3, and a welding mechanism. The fixing fixture 2 is mounted on the machine base 1 and is used to position the water meter casing 6. The sensing component 3, mounted on the machine base 1, has a first sensor 31 and a second sensor 32 horizontally opposite each other, located on both sides of the fixing fixture 2; the first sensor 31 and the second sensor 32 are respectively equipped with a plurality of horizontally arranged transmitters 33 and receivers 34; the welding mechanism 5 is mounted on the machine base 1 and is used to weld the middle ring. When the water meter casing 6 is placed horizontally on the fixing fixture 2, the plurality of transmitters 33 and receivers 34 are slightly higher than the top horizontal plane of the water meter casing 6.

[0045] Understandably, the machine base 1 is the supporting and mounting base component, which can be, for example, a plate, a chassis, a table, etc., but is not limited to these. The fixing fixture 2 is a component used to position the water meter casing 6, which can be, for example, a single clamp 21, a single mold 22, or a combination of clamp 21 and mold 22, etc., but is not limited to these. The transmitting source 33 and the receiving source 34 can be set on either the first sensor 31 or the second sensor 32, that is, they can be mutually transmitted or one can transmit and the other can receive. The transmitting source 33 can be infrared, laser, etc., but is not limited to these. The welding mechanism can be arc welding, laser welding, resistance welding, etc., but is not limited to these.

[0046] With this setup, when the water meter casing is horizontally positioned on the fixing fixture 2, since the top plane of the water meter casing is horizontal, several receiving sources 34 can receive the light source emitted by the transmitting source 33 one by one, indicating that the water meter casing 6 is placed horizontally. When the water meter casing 6 is not placed horizontally, the top of the water meter casing 6 will block the light source emitted by the transmitting source 33, causing the receiving source 34 to be unable to receive the light source, indicating that the water meter casing is not placed horizontally. Therefore, the horizontal placement of the water meter casing can be checked before the middle ring welding to ensure the subsequent welding quality.

[0047] In some embodiments, reference Figures 1-3 The fixing fixture 2 includes a clamp 21 set on the machine base 1, and the water meter 6 is clamped on the clamp 21.

[0048] Understandably, clamp 21 is a component for clamping water meter housing 6, such as a spiral clamp, pneumatic gripper, electromagnetic clamp 21, etc., but not limited to these.

[0049] With this configuration, after the water meter casing 6 is placed on the clamp 21, the water meter casing can be clamped by the clamp 21, and it can be applied to water meter casings of different sizes.

[0050] In some embodiments, the fixing fixture 2 further includes a mold sleeve 22 clamped on the clamp 21, and the water meter housing 6 is embedded and positioned in the mold sleeve 22.

[0051] Understandably, the mold sleeve 22 is a component for embedding and positioning the water meter casing. For example, it can be a pipe structure that runs through the middle, or a cup structure that does not run through the middle completely, but it is not limited to these.

[0052] With this configuration, the clamp 21 can clamp and fix the mold 22 through the cooperation of the clamp 21 and the mold 22, and the water meter housing can be directly embedded into the mold 22 for positioning, making positioning more convenient. Moreover, different models of water meter housings can be positioned by changing the mold 22.

[0053] In some embodiments, the fixing fixture 2 further includes a rotary drive 23 disposed on the machine base 1, the output end of the rotary drive 23 being connected to the clamp 21 to drive the clamp 21 to rotate.

[0054] Understandably, the rotary drive component 23 can be a servo motor or a stepper motor, and can also be used in conjunction with a speed reducer.

[0055] With this configuration, when the welding mechanism 5 acts between the middle ring and the inner wall of the water meter casing, the rotating drive component 23 drives the clamp 21, which in turn drives the water meter casing to rotate one revolution, thus welding the middle and outer rings into place.

[0056] In some embodiments, reference Figures 2-3 The sensing assembly 3 also includes a support member 35 mounted on the machine base 1 for mounting the first sensor 31 and the second sensor 32. Here, the support member 35 is a support component, such as a vertical plate, a vertical pole, a telescopic adjustment rod, etc., but not limited to these. Thus, the first sensor 31 and the second sensor 32 can be raised and mounted using the support member 35.

[0057] In some embodiments, reference Figure 6 The sensing component 3 also includes a photoelectric element, a control system, and an alarm. The photoelectric element is connected to the first sensor 31 and / or the second sensor 32 to convert light signals into electrical signals. The control system is connected to the photoelectric element. The alarm is connected to the control system to indicate that the water meter casing is not placed horizontally.

[0058] Understandably, the control system can be a microcontroller control system or a PLC control system, etc. The connection between the control system and the photoelectric components and alarm can be electrical or signal-based, but is not limited to these. The alarm is a component that indicates that the water meter casing is not horizontally positioned. Here, the indication can be provided by lights or a generator; if this invention is used in conjunction with a robot to load the water meter casing, the indication can also be that the robot re-grabs and places the water meter casing on the positioning fixture for repositioning. The control method of the control system over the alarm and photoelectric components is existing technology and will not be elaborated upon here.

[0059] With this configuration, when one or more of the receiving sources 34 on the first sensor 31 or the second sensor 32 do not receive a light source, the photoelectric element converts the light signal into an electrical signal and sends it to the control system. The control system then sends a command to the alarm to indicate the operation, and the water meter casing is then readjusted manually or by a robot.

[0060] In some embodiments, the sensing component 3 employs a grating sensor. Here, the grating sensor mainly consists of a main grating, an indicator grating, a photoelectric conversion module, and a signal processing circuit, which is prior art and will not be described in detail here.

[0061] In some embodiments, reference Figure 1 and Figure 5 The welding mechanism includes a laser welder 51 and a moving assembly. The laser welder 51 is used to weld the center ring. The moving assembly is mounted on the machine base 1, and its output end is connected to the laser welder 51 to drive the laser welder 51 to move.

[0062] Understandably, the moving component can be a robotic arm, or a combination of multiple linear actuators, etc., but is not limited to these.

[0063] With this setup, the laser welder 51 can be moved into the water meter housing by the moving component to automatically weld the middle ring.

[0064] In some embodiments, the moving component includes a Y-axis drive 52 and a Z-axis drive 53. The Y-axis drive 52 is disposed on the machine base 1 and drives along the direction of approaching and moving away from the fixed fixture 2. The Z-axis drive 53 is disposed at the output end of the Y-axis drive 52 and drives in the vertical direction. The laser welder 51 is disposed at the output end of the Z-axis drive 53. Further, at least two sets of fixed fixture 2 and sensing components 3 are arranged at intervals along the X-axis; the moving component also includes an X-axis drive disposed on the machine base 1, and the Y-axis drive 52 is disposed at the output end of the X-axis drive 54.

[0065] It is understandable that the Y-axis drive unit 52, Z-axis drive unit 53 and X-axis drive unit 54 are all linear drive components, such as cylinders, linear motors, screw drives, etc., but not limited to these.

[0066] With this setup, even without the X-axis drive unit 54, the laser welder 51 can be moved to the middle ring inside the water meter housing for welding using the Y-axis drive unit 52 and the Z-axis drive unit 53. The rotation of the fixing fixture 2, in conjunction with this, allows for the complete welding of the outer ring of the middle ring. Of course, with the X-axis drive unit 54 present, the XYZ three-axis linkage enables the complete welding of the outer ring of the middle ring even without rotation of the water meter housing. The X-axis drive unit 54 can also be used to transfer the welder to another set of fixing fixtures 2 for welding.

[0067] In some embodiments, the moving component further includes a fine-tuning drive 55 disposed at the output end of the Z-axis drive 5453, the output direction of the fine-tuning drive 55 being consistent with the output direction of the Y-axis drive 52, and the laser welder 51 being rotatably adjustable at the output end of the fine-tuning drive 55.

[0068] Understandably, the fine-tuning drive unit 55 can use more precise drive components, such as threaded screw drives or ball screw drives. The rotatable adjustment of the laser welder 51 can be directly driven by servo motors, stepper motors, etc., or combined with harmonic reducers, planetary reducers, etc. It can also be manually adjusted, such as by threaded rods with nuts, worm gears with handwheels, etc., but is not limited to these.

[0069] With this configuration, the position adjustment of the laser welder 51 can be further improved by finely adjusting the drive component 55 and the rotatable adjustment of the laser welder 51, thereby improving the welding accuracy.

[0070] In some embodiments, the laser welder 51 includes a laser welding head 511 and a laser generating system 512. The laser welding head 511 is disposed at the output end of the fine-tuning drive unit 55 and uses a focused laser beam to weld the center ring. The laser generating system 512 is connected to the laser welding head 511. The laser generating system 512 can be disposed on the machine base 1 or on the ground, etc. The laser welding head 511 and the laser generating system 512 are prior art and will not be described in detail here.

[0071] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A welding equipment for the middle ring of a water meter casing, characterized in that, include: Machine tool; A fixing fixture is installed on the machine platform to position the water meter casing; The sensing assembly, mounted on the machine base, includes a first sensor and a second sensor horizontally opposed to each other, located on either side of the fixing fixture; each of the first and second sensors has a corresponding horizontally arranged plurality of transmitting and receiving sources; and A welding mechanism, mounted on the machine base, is used for welding the middle ring; When the water meter casing on the fixing fixture is placed horizontally, the plurality of transmitting sources and the plurality of receiving sources are slightly higher than the horizontal plane of the top of the water meter casing.

2. The water meter casing middle ring welding equipment according to claim 1, characterized in that, The fixing fixture includes a clamp mounted on the machine platform, and the water meter housing is clamped on the clamp.

3. The water meter casing middle ring welding equipment according to claim 2, characterized in that, The fixing fixture also includes a mold sleeve clamped on the fixture, and the water meter housing is embedded and positioned in the mold sleeve.

4. The water meter casing middle ring welding equipment according to claim 2, characterized in that, The fixing fixture also includes a rotary drive component mounted on the machine base, the output end of which is connected to the clamp to drive the clamp to rotate.

5. The water meter casing middle ring welding equipment according to claim 1, characterized in that, The sensing assembly also includes a support member disposed on the machine base for mounting the first sensor and the second sensor; And / or the sensing component further includes: An optoelectronic element, connected to the first sensor and / or the second sensor, is used to convert optical signals into electrical signals; The control system is connected to the photoelectric element; and An alarm, connected to the control system, is used to indicate that the water meter casing is not placed horizontally.

6. The water meter casing middle ring welding equipment according to claim 1, characterized in that, The sensing component is a grating sensor.

7. The water meter casing middle ring welding equipment according to claim 1, characterized in that, The welding mechanism includes: Laser welder, used for welding the middle ring; and A movable component is mounted on the machine base and its output end is connected to the laser welder for moving the laser welder.

8. The water meter casing middle ring welding equipment according to claim 7, characterized in that, The moving component includes: A Y-axis drive unit, mounted on the machine base, drives the machine along directions approaching and moving away from the fixed fixture; and The Z-axis drive unit is located at the output end of the Y-axis drive unit and drives in the vertical direction; The laser welder is located at the output end of the Z-axis drive component; And / or, the fixing fixture and the sensing component are arranged in at least two sets at intervals along the X-axis; the moving component further includes an X-axis drive unit disposed on the machine base, and the Y-axis drive unit is disposed at the output end of the X-axis drive unit.

9. The water meter casing middle ring welding equipment according to claim 8, characterized in that, The moving component also includes a fine-tuning drive unit disposed at the output end of the Z-axis drive unit. The output direction of the fine-tuning drive unit is consistent with the output direction of the Y-axis drive unit. The laser welder is rotatably adjustable at the output end of the fine-tuning drive unit.

10. The water meter casing middle ring welding equipment according to claim 9, characterized in that, The laser welder includes: A laser welding head, positioned at the output end of the fine-tuning drive component, is used to weld the center ring using a focused laser beam; and A laser generating system is connected to the laser welding head.

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