Tungsten needle dip angle automatic adjusting device

Abstract

The utility model relates to the technical field of welding, in particular to an automatic tungsten needle dip angle adjusting device. The automatic tungsten needle dip angle adjusting device is installed on steam generator robot seal welding equipment and specifically comprises a rotating shaft support, a synchronous belt, a synchronous motor, a transmission assembly, a speed reducing mechanism and a welding gun shell. The rotating shaft support is fixedly connected with the synchronous motor, the synchronous motor is connected with the transmission assembly through the synchronous belt, the transmission assembly is connected with the rotating shaft support, the transmission assembly is connected with the speed reducing mechanism, the speed reducing mechanism is fixedly connected with the welding gun shell, and the welding gun shell is fixedly connected with the tungsten needle. The device has the advantage that the dip angle of the tungsten needle can be adjusted in real time in the all-position welding process of seal welding.

Description

TECHNICAL FIELD

[0001] The utility model relates to welding technical field especially relates to a tungsten needle inclination automatic adjusting device. BACKGROUND

[0002] In the field of nuclear power, a steam generator is a key device for transferring heat generated by a nuclear reactor to a secondary loop to generate steam. The steam generator is internally equipped with a large number of dense tube bundles, with a quantity of about 10,000 to 20,000. Due to the large size and complex piping of the steam generator, the sealing welding process requires a high level of quality.

[0003] The current sealing welding of the steam generator generally uses argon arc welding horizontal welding position full position welding. However, due to the large number of pipes and the large amount of work in programming the robot path, the traditional robot argon arc welding equipment generally only programs the X, Y, and Z axes of the robot, which can easily overlook the impact of the welding gun inclination angle on the welding quality. The tungsten needle is fixed at the welding gun, and the change in the inclination angle of the tungsten needle will affect the stress of the molten pool at each position, which can easily cause differences in the surface forming quality of each molten pool, thereby ultimately affecting the overall welding quality.

[0004] Therefore, in view of the deficiencies of the prior art, a tungsten needle inclination automatic adjusting device is provided. SUMMARY

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a tungsten needle inclination automatic adjusting device, which aims to solve the problem of not being able to adjust the inclination angle of the tungsten needle in real time during the full position welding of the sealing welding.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] A tungsten needle inclination automatic adjusting device is installed on a steam generator robot sealing welding equipment, comprising: a rotating shaft support, a synchronous belt, a synchronous motor, a transmission assembly, a speed reduction mechanism, and a welding gun housing;

[0008] The rotating shaft support is fixedly connected with the synchronous motor, the synchronous motor is connected with the transmission assembly through the synchronous belt, the transmission assembly is connected with the rotating shaft support, the transmission assembly is connected with the speed reduction mechanism, the speed reduction mechanism is fixedly connected with the welding gun housing, and the welding gun housing is fixedly connected with the tungsten needle.

[0009] As a further improvement of the utility model technical scheme, the synchronous motor comprises a first gear, the first gear is fixedly connected with the output end of the synchronous motor, and the first gear is meshedly connected with the synchronous belt.

[0010] As a further improvement of the utility model technical scheme, the transmission assembly includes a transmission shaft, a first bearing and a second bearing, the first bearing and the second bearing are located at both ends of the transmission shaft, the first bearing is fixedly connected with the rotating shaft support, the second bearing is fixedly connected with the speed reducer mechanism, and the transmission shaft is connected with the speed reducer mechanism.

[0011] As a further improvement of the utility model technical scheme, the speed reducer mechanism includes a speed reducer body and a second gear, the speed reducer body is fixedly connected with the second gear, the second gear is meshingly connected with the synchronous belt, and the second gear is key-connected with the transmission shaft.

[0012] As a further improvement of the utility model technical scheme, the speed reducer mechanism further includes a speed reducer support, and the speed reducer support is fixedly connected with the speed reducer body and the welding gun shell respectively.

[0013] As a further improvement of the utility model technical scheme, the speed reducer body is a harmonic speed reducer.

[0014] As a further improvement of the utility model technical scheme, the synchronous belt is a 2GT04 synchronous belt.

[0015] As a further improvement of the utility model technical scheme, the synchronous belt is located in the rotating shaft support.

[0016] Compared with the prior art, the utility model has the beneficial effects that:

[0017] In the tungsten needle inclination automatic adjusting device, in order to realize the automatic adjustment of the tungsten needle inclination, the synchronous motor automatically calculates the motor running turns according to the control signal sent by the control system, the synchronous belt is transmitted to the transmission assembly, the transmission assembly is connected with the speed reducer mechanism, the speed reducer mechanism rotates at a certain inclination according to the selected speed reduction ratio in advance, the tungsten needle is adjusted at a certain angle through the welding gun shell, and thus the automatic adjustment of the tungsten needle angle in the full-position welding process of the sealing is realized. The tungsten needle inclination automatic adjusting device has the characteristics that the tungsten needle inclination can be adjusted in real time in the full-position welding process of the sealing. BRIEF DESCRIPTION OF DRAWINGS

[0018] The utility model will be further described in detail in combination with the drawings and specific embodiments:

[0019] Figure 1 is the three-dimensional structure schematic view of the utility model tungsten needle inclination automatic adjusting device;

[0020] Figure 2 is the structure schematic view of the transmission structure in the utility model tungsten needle inclination automatic adjusting device;

[0021] Figure 3 is a structural schematic view of a transmission assembly in the tungsten needle inclination automatic adjusting device of the utility model;

[0022] Figure 4 is a structural schematic view of a speed reducer mechanism in the tungsten needle inclination automatic adjusting device of the utility model;

[0023] Figure 5 is a structural schematic view of a rotating shaft support in the tungsten needle inclination automatic adjusting device of the utility model.

[0024] In the drawing:

[0025] 1, rotating shaft support; 2, synchronous belt; 3, synchronous motor; 31, first gear; 4, transmission assembly; 41, including transmission shaft; 42, first bearing; 43, second bearing; 5, speed reducer mechanism; 51, speed reducer body; 52, second gear; 53, speed reducer support; 6, welding torch shell. DETAILED DESCRIPTION

[0026] The concept, specific structure and generated technical effects of the utility model will be described clearly and completely in combination with embodiments and drawings, so as to fully understand the purpose, scheme and effect of the utility model. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The same reference signs used in the drawings indicate the same or similar parts.

[0027] It should be noted that, unless otherwise specified, when a certain feature is referred to as "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or indirectly fixed or connected to the other feature. In addition, the up, down, left, right and other descriptions used in the present application are only relative to the mutual position relationship of the components of the present application in the drawings.

[0028] Referring to Figures 1 to 5 , a tungsten needle inclination automatic adjusting device, the automatic adjusting device is installed on a steam generator robot sealing welding equipment, comprising a rotating shaft support 1, a synchronous belt 2, a synchronous motor 3, a transmission assembly 4, a speed reducer mechanism 5 and a welding torch shell 6;

[0029] In one embodiment, referring to Figures 1-2 , the rotating shaft support 1 is fixedly connected with the synchronous motor 3, the synchronous motor 3 is connected with the transmission assembly 4 through the synchronous belt 2, the transmission assembly 4 is connected with the rotating shaft support 1, the transmission assembly 4 is connected with the speed reducer mechanism 5, the speed reducer mechanism 5 is fixedly connected with the welding torch shell 6, and the welding torch shell 6 is fixedly connected with the tungsten needle.

[0030] In the steam generator sealing welding all-position welding process, in order to make the tungsten needle welding to any position can guarantee the tungsten needle inclination angle and the molten pool is in the best welding position, guarantee the sealing welding appearance consistency, thereby obtaining the weld of quality qualified. Through the realization of the automatic adjustment of the tungsten needle inclination angle, the synchronous motor 3 automatically calculates the motor running turns according to the control signal of the control system, is transmitted to the transmission assembly 4 through the synchronous belt 2, the transmission assembly 4 is connected with the speed reducer 5, the speed reducer 5 is rotated according to the speed reduction ratio selected in advance, the tungsten needle is adjusted by the welding gun shell 6 to a certain angle, thereby realizing the automatic adjustment of the tungsten needle angle in the sealing all-position welding process. The tungsten needle inclination angle automatic adjusting device has the characteristics that the tungsten needle inclination angle can be adjusted in real time in the sealing welding all-position welding process. The tungsten needle and the molten pool are in the best welding angle, and the sealing welding quality of the steam generator is guaranteed.

[0031] In one embodiment, referring to Figure 2 The synchronous motor 3 comprises a first gear 31, the first gear 31 is fixedly connected with the output end of the synchronous motor 3, and the first gear 31 is meshingly connected with the synchronous belt 2.

[0032] In one embodiment, referring to Figure 3 The transmission assembly 4 comprises a transmission shaft 41, a first bearing 42 and a second bearing 43, the first bearing 42 and the second bearing 43 are located at both ends of the transmission shaft, the first bearing 42 is fixedly connected with the rotating shaft support 1, the second bearing 43 is fixedly connected with the speed reducer 5, and the transmission shaft is connected with the speed reducer 5.

[0033] In one embodiment, referring to Figure 4 The speed reducer 5 comprises a speed reducer body 51, a second gear 52 and a speed reducer support 53, the speed reducer body 51 is fixedly connected with the second gear 52, the second gear 52 is meshingly connected with the synchronous belt 2, the second gear 52 is keyed connected with the transmission shaft, and the accurate transmission of the transmission number is guaranteed. The speed reducer support 53 is fixedly connected with the speed reducer body 51 and the welding gun shell 6. Preferably, the speed reducer body 51 is a harmonic reducer.

[0034] In one embodiment, referring to Figure 5 The synchronous belt 2 is located in the rotating shaft support 1. Preferably, the synchronous belt is a 2GT04 synchronous belt 2.

[0035] In one embodiment, in order to ensure that the tungsten needle realizes effective welding at the welding position, the tungsten needle inclination angle automatic adjusting device is arranged to swing within ±20° of the central angle of the tungsten needle.

[0036] Other contents of the tungsten needle inclination angle automatic adjusting device are known in the prior art and will not be described here.

[0037] The above are only preferred embodiments of the present application, and are not intended to limit the present application in any form. Any modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application, without departing from the technical solution content of the present application, still belong to the scope of the technical solution of the present application.

[0038] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0039] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

Claims

1. A tungsten needle inclination angle automatic adjustment device installed on a steam generator robot seal welding equipment, characterized in that, Include: Rotary shaft support, synchronous belt, synchronous motor, transmission assembly, speed reducer and welding torch shell; The rotary shaft support is fixedly connected with the synchronous motor, the synchronous motor is connected with the transmission assembly through the synchronous belt, the transmission assembly is connected with the rotary shaft support, the transmission assembly is connected with the speed reducer, the speed reducer is fixedly connected with the welding torch shell, and the welding torch shell is fixedly connected with the tungsten needle.

2. The automatic tungsten needle inclination angle adjusting device according to claim 1, characterized in that, The synchronous motor comprises a first gear, the first gear is fixedly connected with the output end of the synchronous motor, and the first gear is in meshing connection with the synchronous belt.

3. The automatic tungsten needle inclination angle adjusting device according to claim 1, wherein The transmission assembly comprises a transmission shaft, a first bearing and a second bearing, the first bearing and the second bearing are located at two ends of the transmission shaft, the first bearing is fixedly connected with the rotary shaft support, the second bearing is fixedly connected with the speed reducer, and the transmission shaft is connected with the speed reducer.

4. The automatic tungsten needle inclination angle adjusting device according to claim 3, characterized in that, The speed reducer comprises a reducer body and a second gear, the reducer body is fixedly connected with the second gear, the second gear is in meshing connection with the synchronous belt, and the second gear is in key connection with the transmission shaft.

5. The automatic tungsten needle inclination angle adjusting device according to claim 4, characterized in that, The speed reducer further comprises a reducer support, and the reducer support is fixedly connected with the reducer body and the welding torch shell respectively.

6. The automatic tungsten needle inclination angle adjusting device according to claim 4, characterized in that, The reducer body is a harmonic speed reducer.

7. The automatic tungsten needle inclination angle adjusting device according to claim 1, wherein The synchronous belt is a 2GT04 synchronous belt.

8. The tungsten needle inclination angle automatic adjustment device according to claim 1, characterized in that, The synchronous belt is located in the rotary shaft support.

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