Welding equipment with welding electrode bar height detection function

Abstract

The utility model discloses welding equipment with a function of detecting the height of a welding electrode bar, which comprises a rack and a welding gun head arranged on the rack, and the bottom end of the welding gun head extends downwards to form the welding electrode bar; a welding electrode bar height detection unit is arranged on the rack; the welding gun head is connected with a Z-axis lifting driving unit, the Z-axis lifting driving unit drives the welding gun head to lift up and down, the Z-axis lifting driving unit is connected with a translation driving unit, and the translation driving unit drives the Z-axis lifting driving unit and the welding gun head to translate together; and the control system is connected to the welding electrode bar height detection unit, the Z-axis lifting driving unit and the translation driving unit. In this way, the height of the welding electrode bar is detected during welding, it is ensured that the height of the welding electrode bar reaches the standard, the welding quality is prevented from being affected by height change of the welding electrode bar caused by abrasion and consumption of the welding electrode bar, and the welding quality is ensured.

Description

Technical Field

[0001] The utility model relates to the field of welding equipment, in particular to a welding equipment with a welding electrode rod height detection function. Background Art

[0002] Resistance welding (or arc welding) equipment generally includes a frame and a welding gun head disposed on the frame. The welding gun head is disposed downward, and a welding electrode rod (such as a tungsten rod or a tungsten needle) extends downward from the bottom end of the welding gun head.

[0003] After multiple welding operations, the bottom end of the welding electrode rod is prone to wear or contamination with foreign matter, resulting in a difference between the actual height of the welding electrode rod and the default height setting in the equipment system. During welding, the pressure of the welding electrode rod is prone to being too high or too low, resulting in poor welding, weak welding, surface cracks at the weld, spattering, overburning, burn-through, electrode sticking, accelerated electrode consumption and other undesirable phenomena, which also have a negative impact on welding quality.

[0004] In response to the above situation, in actual welding processes, the usual practice is to replace the welding electrode rods after a period of time or after completing the set welding workload to avoid a high welding defect rate. However, for the same welding electrode rod, in theory, except for the initial commissioning and setting of the target height, there is a possibility that the actual height of the welding electrode rod will differ from the default height setting in the equipment system during subsequent welding, which is not conducive to ensuring welding quality. Moreover, frequent replacement of welding electrode rods consumes the effective working time of the equipment, affecting processing efficiency and increasing the consumption cost of the welding electrode rods.

[0005] Therefore, it is necessary to study a new technical solution to solve the above problems. Utility Model Content

[0006] In view of this, the present invention aims to address the deficiencies in the prior art, and its main purpose is to provide a welding device with a welding electrode rod height detection function. It detects the height of the welding electrode rod to ensure that the height of the welding electrode rod meets the standard, avoids the change in the height of the welding electrode rod due to wear and consumption of the welding electrode rod, and affects the welding quality, thereby ensuring the welding quality.

[0007] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0008] A welding device with a welding electrode rod height detection function comprises a frame and a welding gun head arranged on the frame, wherein the welding gun head is arranged downward, and a welding electrode rod extends downward from the bottom end of the welding gun head;

[0009] The frame is provided with a welding electrode rod height detection unit; the welding gun head is connected to a Z-axis lifting drive unit, the Z-axis lifting drive unit drives the welding gun head to move up and down, and the Z-axis lifting drive unit is connected to a translation drive unit, the translation drive unit drives the Z-axis lifting drive unit and the welding gun head to translate together;

[0010] It also includes a control system, which is connected to the welding electrode rod height detection unit, the Z-axis lifting drive unit and the translation drive unit.

[0011] As a preferred solution, the welding electrode rod height detection unit includes a fiber optic sensor, which includes a fiber optic transmitter and a fiber optic receiver. The fiber optic transmitter and the fiber optic receiver are arranged opposite each other at a distance, and a detection port for the welding electrode rod to extend into is formed between the fiber optic transmitter and the fiber optic receiver.

[0012] As a preferred solution, the optical fiber transmitter and the optical fiber receiver are respectively mounted on a mounting frame, and the position of the mounting frame can be adjusted up and down.

[0013] As a preferred solution, the mounting bracket is provided with a first adjustment hole extending vertically to adjust the vertical installation height of the mounting bracket.

[0014] As a preferred solution, an RFID system is provided on the frame, and the RFID system is connected between the welding electrode rod height detection unit and the control system.

[0015] As a preferred solution, a stand is connected to the rack, the mounting frame is installed on the top of the stand, a power supply device is also provided on the top of the stand, and the power supply device and the optical fiber sensor are staggered with each other along the X-axis.

[0016] As a preferred solution, the power-collecting device includes an automatically opening and closing power-collecting clamp, the power-collecting clamp is connected to a Y-axis translation cylinder, the Y-axis translation cylinder is installed on the top of the stand, and the Y-axis translation cylinder drives the power-collecting clamp to translate along the Y-axis relative to the stand.

[0017] As a preferred solution, the Y-axis translation cylinder at the top of the stand can adjust its position along the X-axis.

[0018] As a preferred solution, the top of the stand is connected to an adapter plate, the position of the adapter plate relative to the top of the stand can be adjusted along the Y-axis, and the power supply device is installed on the adapter plate.

[0019] As a preferred solution, the translation drive unit includes an X-axis translation drive unit and a Y-axis translation drive unit. The X-axis translation drive unit drives the Z-axis lifting drive unit and the welding gun head to translate along the X-axis, and the Y-axis translation drive unit drives the Z-axis lifting drive unit and the welding gun head to translate along the Y-axis; the Y-axis translation drive unit is connected to the X-axis translation drive unit, and the Y-axis translation drive unit drives the X-axis translation drive unit, the Z-axis lifting drive unit and the welding gun head to translate along the Y-axis.

[0020] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical scheme that it is mainly achieved by arranging a welding electrode rod height detection unit on the frame, and the welding gun head is connected to a Z-axis lifting drive unit, the Z-axis lifting drive unit drives the welding gun head to move up and down, and the Z-axis lifting drive unit is connected to a translation drive unit, and the translation drive unit drives the Z-axis lifting drive unit and the welding gun head to move together; it also includes a control system, and the control system is connected to the welding electrode rod height detection unit, the Z-axis lifting drive unit and the translation drive unit. In this way, the height of the welding electrode rod is detected during welding to ensure that the height of the welding electrode rod meets the standard, thereby avoiding the change of the welding electrode rod height due to wear and consumption of the welding electrode rod, affecting the welding quality, and ensuring the welding quality.

[0021] In order to more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a three-dimensional diagram of a welding device with a welding electrode height detection function according to an embodiment of the present invention;

[0023] Figure 2 This is a partial perspective view of a welding device with a welding electrode height detection function according to an embodiment of the present invention;

[0024] Figure 3 yes Figure 2 Middle K-direction view;

[0025] Figure 4 This is a perspective view of the assembly of the welding electrode height detection unit and the power extraction clamp according to an embodiment of the present invention;

[0026] Figure 5 yes Figure 4 Middle M-direction view;

[0027] Figure 6 This is an exploded view of the welding electrode rod height detection unit and the power removal clamp of an embodiment of the present utility model.

[0028] Description of the accompanying drawings: frame H1, welding gun head H2, welding electrode rod H3, Z-axis lifting drive unit H4, X-axis translation drive unit H5, Y-axis translation drive unit H6, mounting bracket H7, fiber optic transmitter H8, fiber optic receiver H9, detection port H10, first adjustment hole H11, fiber optic amplifier H12, stand H13, power supply device H14, power supply clamp H15, Y-axis translation cylinder H16, second adjustment hole H17, adapter plate H18, fiber optic sensor H19, third adjustment hole H20. DETAILED DESCRIPTION

[0029] Please refer to Figures 1 to 6 As shown, it shows the specific structure of an embodiment of the present utility model.

[0030] In the description of the present invention, it should be noted that the terms "up", "down", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as a limitation on the present invention.

[0031] A welding device with a welding electrode rod height detection function is primarily, but not limited to, used for welding stator products, such as welding the ends of stator flat copper wires to stator busbars. The device comprises a frame H1 and a welding gun head H2 mounted on the frame H1. The welding gun head H2 is positioned downward, with a welding electrode rod H3 extending downward from the bottom end of the welding gun head H2.

[0032] A welding electrode rod height detection unit is provided on the frame H1; the welding gun head H2 is connected to a Z-axis lifting drive unit, and the Z-axis lifting drive unit H4 drives the welding gun head H2 to move up and down, and the Z-axis lifting drive unit H4 is connected to a translation drive unit, and the translation drive unit drives the Z-axis lifting drive unit H4 and the welding gun head H2 to translate together. In this embodiment, the translation drive unit includes an X-axis translation drive unit H5 and a Y-axis translation drive unit H6. The X-axis translation drive unit H5 drives the Z-axis lifting drive unit H4, the Z-axis lifting drive unit H4 and the welding gun head H2 to translate together along the X-axis. The Y-axis translation drive unit H6 drives the Z-axis lifting drive unit H4, the Z-axis lifting drive unit H4 and the welding gun head H2 to translate together along the Y-axis. The Y-axis translation drive unit H6 is connected to the X-axis translation drive unit H5. The Y-axis translation drive unit H6 drives the X-axis translation drive unit H5, the Z-axis lifting drive unit H4, the Z-axis lifting drive unit H4 and the welding gun head H2 to translate together along the Y-axis. In actual design, the Z-axis lifting drive unit H4, the X-axis translation drive unit H5, and the Z-axis lifting drive unit H4 can all be cylinders or motors (such as motor linear modules).

[0033] The control system is also included, and the control system is connected to the welding electrode rod height detection unit, the Z-axis lifting drive unit H4, and the translation drive unit. Before performing the welding operation, the height of the welding electrode rod H3 is first detected, and the height value is fed back to the control system. The control system recalculates the target height of the welding electrode rod H3 to guide the Z-axis lifting drive unit H4 to drive the welding gun head H2 to lower the distance during subsequent welding, so that the welding electrode rod H3 is lowered to the target height, ensuring the welding quality. It can be seen that before the welding operation, the target height is refreshed and recalculated by the welding electrode rod height detection unit based on the actual situation of the welding electrode rod H3, avoiding the negative impact on welding quality caused by height differences due to wear of the bottom end of the welding electrode rod H3 or other factors.

[0034] The welding electrode rod height detection unit includes a fiber optic sensor H19, which comprises a mounting frame H7 and a fiber optic transmitter H8 and a fiber optic receiver H9, each mounted on the mounting frame H7. The fiber optic transmitter H8 and the fiber optic receiver H9 are positioned opposite each other with a detection port H10 formed between the fiber optic transmitter H8 and the fiber optic receiver H9, into which the welding electrode rod H3 of the welding gun head H2 extends downward. The fiber optic transmitter H8 and the fiber optic receiver H9 are each mounted on the mounting frame H7, and the position of the mounting frame H7 is adjustable. In this embodiment, the mounting frame H7 is provided with a vertically extending first adjustment hole H11 to adjust the vertical mounting height of the mounting frame H7, and thereby adjust the height of the fiber optic transmitter H8 and the fiber optic receiver H9. The fiber optic sensor is connected to a fiber optic amplifier H12, such as the FX-551-2 amplifier. The fiber optic amplifier H12 is connected to the control system. An RFID system can also be provided on the rack H1, and the RFID system is connected between the welding electrode rod height detection unit and the control system. For example, the optical fiber amplifier H12 is connected to the control system through the RFID system. Through the setting of the RFID system, information can be read instantly, which is convenient and fast, and is not affected by the working environment of the welding equipment. It has a long service life and good reliability.

[0035] Frame H1 is connected to a stand H13, with mounting bracket H7 mounted on top of stand H13. A power extraction device H14 is also mounted on top of stand H13, staggered along the X-axis with the fiber optic sensor to prevent interference. The power extraction device H14 includes an automatically opening and closing power extraction clamp H15 (its pair of jaws are driven by a pneumatic cylinder). The clamp H15 is connected to a Y-axis translation cylinder H16, mounted on top of stand H13. The cylinder H16 drives the clamp H15 to translate along the Y-axis relative to stand H13. The Y-axis translation cylinder H16 is capable of adjusting its position along the X-axis at the top of the stand H13. Specifically, a second adjustment hole H17 extending left and right can be provided on the top of the stand H13 to adjust the locking position of the Y-axis translation cylinder H16 within the second adjustment hole H17. An adapter plate H18 is connected to the top of the stand H13. The adapter plate H18 is capable of adjusting its position along the Y-axis relative to the top of the stand H13. The adapter plate H18 is provided with a third adjustment hole H20 extending forward and backward. The second adjustment hole H17 is provided on the adapter plate H18, and the power supply device H14 is mounted on the adapter plate H18.

[0036] The design focus of the present invention is that it is mainly achieved by arranging a welding electrode rod height detection unit on the frame H1, and the welding gun head H2 is connected to the Z-axis lifting drive unit H4Z-axis lifting drive unit H4, the Z-axis lifting drive unit H4Z-axis lifting drive unit H4 drives the welding gun head H2 to move up and down, and the Z-axis lifting drive unit H4Z-axis lifting drive unit H4 is connected to a translation drive unit, and the translation drive unit drives the Z-axis lifting drive unit H4Z-axis lifting drive unit H4 and the welding gun head H2 to translate together; it also includes a control system, which is connected to the welding electrode rod height detection unit, the Z-axis lifting drive unit H4Z-axis lifting drive unit H4 and the translation drive unit. In this way, during welding, the height of the welding electrode rod H3 is detected to ensure that the height of the welding electrode rod H3 meets the standard, thereby avoiding the change in the height of the welding electrode rod H3 due to wear and consumption of the welding electrode rod H3 affecting the welding quality, thereby ensuring the welding quality.

[0037] The above description is merely a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A welding device with a welding electrode rod height detection function, comprising a frame and a welding gun head disposed on the frame, wherein the welding gun head is disposed downward, and a welding electrode rod extends downward from the bottom end of the welding gun head; characterized in that: The frame is provided with a welding electrode rod height detection unit; the welding gun head is connected to a Z-axis lifting drive unit, the Z-axis lifting drive unit drives the welding gun head to move up and down, and the Z-axis lifting drive unit is connected to a translation drive unit, the translation drive unit drives the Z-axis lifting drive unit and the welding gun head to translate together; It also includes a control system, which is connected to the welding electrode rod height detection unit, the Z-axis lifting drive unit and the translation drive unit.

2. The welding equipment with welding electrode height detection function according to claim 1, characterized in that The welding electrode rod height detection unit includes a fiber optic sensor, which includes a fiber optic transmitter and a fiber optic receiver. The fiber optic transmitter and the fiber optic receiver are arranged opposite each other at a distance, and a detection port for the welding electrode rod to be inserted is formed between the fiber optic transmitter and the fiber optic receiver.

3. The welding equipment with welding electrode height detection function according to claim 2, characterized in that The optical fiber transmitter and the optical fiber receiver are respectively installed on a mounting frame, and the position of the mounting frame can be adjusted up and down.

4. The welding equipment with welding electrode height detection function according to claim 3, characterized in that The mounting bracket is provided with a first adjustment hole extending vertically to adjust the vertical installation height of the mounting bracket.

5. The welding equipment with welding electrode height detection function according to claim 1 or 2, characterized in that An RFID system is provided on the frame, and the RFID system is connected between the welding electrode rod height detection unit and the control system.

6. The welding equipment with welding electrode height detection function according to claim 3, characterized in that The rack is connected to a vertical frame, the mounting frame is installed on the top of the vertical frame, and a power supply device is also provided on the top of the vertical frame, and the power supply device and the optical fiber sensor are staggered with each other along the X-axis.

7. The welding equipment with welding electrode height detection function according to claim 6, characterized in that The power-collecting device includes an automatically opening and closing power-collecting clamp, and the power-collecting clamp is connected to a Y-axis translation cylinder. The Y-axis translation cylinder is installed on the top of the stand, and the Y-axis translation cylinder drives the power-collecting clamp to translate along the Y-axis relative to the stand.

8. The welding equipment with welding electrode height detection function according to claim 7, characterized in that The Y-axis translation cylinder at the top of the stand can adjust its position along the X-axis.

9. The welding equipment with welding electrode height detection function according to claim 6 or 7, characterized in that The top of the stand is connected to an adapter plate, and the position of the adapter plate relative to the top of the stand can be adjusted along the Y-axis, and the power supply device is installed on the adapter plate.

10. The welding equipment with welding electrode height detection function according to claim 1, characterized in that The translation drive unit includes an X-axis translation drive unit and a Y-axis translation drive unit. The X-axis translation drive unit drives the Z-axis lifting drive unit and the welding gun head to translate along the X-axis, and the Y-axis translation drive unit drives the Z-axis lifting drive unit and the welding gun head to translate along the Y-axis; the Y-axis translation drive unit is connected to the X-axis translation drive unit, and the Y-axis translation drive unit drives the X-axis translation drive unit, the Z-axis lifting drive unit and the welding gun head to translate along the Y-axis.

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