Welding turret

Abstract

The application relates to the technical field of welding, in particular to a welding rotary table. The bottom end of a rotary table supporting shaft is fixed to a rotary table fixing base. A rotary table body is sleeved outside the rotary table supporting shaft, and the rotary table body and the rotary table supporting shaft are coaxially arranged. A stator of a mercury slip ring is fixed to the top end of the rotary table supporting shaft. The rotary table body is fixedly connected with a rotor of the mercury slip ring. A line channel and a first gas path channel extending in a first direction are formed in the rotary table supporting shaft. The stator of the mercury slip ring extends into the line channel. A second gas path channel for being connected with a valve island of a pneumatic clamp is formed in the rotary table body. The first gas path channel and the second gas path channel are communicated. The first direction is parallel to the axial direction of the rotary table supporting shaft. The application aims to solve at least one technical problem in the background art and provides a welding rotary table.

Description

Technical Field

[0001] This application relates to the field of welding technology, and more specifically, to a welding turntable. Background Technology

[0002] Currently, many car factory prototyping lines have very few fixtures and processes in order to save costs. The front panel, floor, and door cover are all welded into an assembly by a single station. Since the weld points are all around, but the welding gun is fixed in one place, it is necessary to rotate the workpiece to move each weld point to the corresponding position of the welding gun. Therefore, there is an urgent need for a welding turntable for rotating the workpiece to be welded to adapt to the position of the welding gun. Utility Model Content

[0003] The purpose of this application is to provide a welding turntable that addresses at least one of the technical problems mentioned in the background art.

[0004] To achieve the above objectives, this application adopts the following technical solution: One aspect of this application provides a welding turntable, including a turntable base, a turntable support shaft, a turntable body, and a mercury slip ring. The turntable support shaft is vertically arranged, and its bottom end is fixed to the turntable base. The turntable body is fitted onto the turntable support shaft and is coaxial with it. The stator of the mercury slip ring is fixed to the top end of the turntable support shaft, and the turntable body is fixedly connected to the rotor of the mercury slip ring. A circuit channel and a first air passage extending in a first direction are formed within the turntable support shaft. The stator of the mercury slip ring extends into the circuit channel. A second air passage for connecting with the valve island of the pneumatic clamp is formed within the turntable body. The first air passage communicates with the second air passage. The first direction is parallel to the axial direction of the turntable support shaft.

[0005] Optionally, an annular connecting groove is formed on the inner wall of the turntable body, which is coaxially arranged with the turntable support shaft. The opening of the annular connecting groove faces the turntable support shaft. The first air passage has a first connecting port, which is perpendicular to the first direction. The position of the first connecting port in the first direction corresponds to the position of the opening of the annular connecting groove. The first connecting port communicates with the annular connecting groove, and the second air passage communicates with the annular connecting groove.

[0006] The beneficial effect of this technical solution is that, when the turntable body rotates relative to the turntable support shaft, the first connecting port and the groove of the annular connecting groove are always connected, so that the first air passage and the second air passage are always connected, thereby enabling the air pressure to be smoothly delivered from the air source to the valve island of the pneumatic clamp.

[0007] Optionally, the welding turntable provided in this application further includes a first sealing ring and a second sealing ring. A first annular groove and a second annular groove, both coaxially arranged with the turntable support shaft, are formed on the inner wall of the turntable body. The first annular groove is provided on one side of the annular connecting groove in the first direction, and the second annular groove is provided on the other side of the annular connecting groove. The first sealing ring is disposed in the first annular groove, and both the turntable support shaft and the first sealing ring are sealed with the first sealing ring. The second sealing ring is disposed in the second annular groove, and both the turntable support shaft and the second sealing ring are sealed with the second sealing ring.

[0008] The beneficial effect of this technical solution is that by setting the first sealing ring and the second sealing ring, air pressure is less likely to leak from both sides of the annular connecting groove.

[0009] Optionally, the welding turntable provided in this application further includes a gas source pipeline. The first gas channel has a second communication port located near the bottom end of the turntable support shaft. The orientation of the second communication port is perpendicular to the first direction. The gas source pipeline is connected to the second communication port.

[0010] The beneficial effect of this technical solution is that it facilitates the connection between the first gas passage and the horizontally arranged gas source pipeline.

[0011] Optionally, the line channel is coaxially arranged with the turntable support shaft, and the stator of the mercury slip ring is fixed to the top end of the line channel.

[0012] The beneficial effect of this technical solution is that it allows the stator of the mercury slip ring to directly extend into the circuit channel. Preferably, the welding turntable further includes a dust cover, a first slip ring fixing seat fixed on the turntable support shaft, and a second slip ring fixing seat fixed to the turntable body. The first slip ring fixing seat includes a cylindrical part, which is fitted and fixed to the stator of the mercury slip ring. The outer wall of the cylindrical part is provided with threads, and the top end of the circuit channel is provided with internal threads. The cylindrical part is threadedly connected to the top end of the circuit channel. The first slip ring fixing seat also includes a limiting part, which is fixed to the outer wall of the cylindrical part. After the cylindrical part is threadedly connected to the top end of the circuit channel, the limiting part abuts against the end face of the turntable support shaft. After the cylindrical part is threadedly connected to the top end of the circuit channel, the cylindrical part is coaxially arranged with the circuit channel. The second slip ring fixing seat is fixed to the top of the turntable body and is fixedly connected to the rotor of the mercury slip ring. The dust cover is fixed to the second slip ring fixing seat, and a through hole is provided at the top of the dust cover. The through hole is coaxially arranged with the mercury slip ring.

[0013] Optionally, a through hole for wiring is formed on the turntable support shaft, the through hole being located near the bottom end of the turntable support shaft and communicating with the wiring channel.

[0014] The beneficial effect of this technical solution is that it facilitates the power supply line and the electrical signal line to extend from both sides of the turntable support shaft into the line through hole, and further into the line channel to connect with the mercury slip ring.

[0015] Optionally, the welding turntable provided in this application further includes a first bearing fitted onto the turntable support shaft, the inner ring of the first bearing being fixed to the turntable support shaft, and the outer ring of the first bearing being fixed to the turntable body.

[0016] The beneficial effect of this technical solution is that, by separating and supporting the turntable support shaft and the turntable body through the first bearing, the turntable body can rotate relatively stably relative to the turntable support shaft.

[0017] Optionally, the welding turntable provided in this application further includes a second bearing fitted onto the turntable support shaft, the inner ring of the second bearing being fixed to the turntable support shaft, the outer ring of the second bearing being fixed to the turntable body, and the first bearing being located above the second bearing.

[0018] The beneficial effect of this technical solution is that, by using the first and second bearings together to separate and support the turntable support shaft and the turntable body, the stability of the turntable body rotating relative to the turntable support shaft is improved.

[0019] Optionally, the welding turntable provided in this application further includes a turntable, which is an annular component coaxially arranged with the turntable body. The turntable is fitted onto the turntable body and fixed to the turntable body. The turntable is used to install pneumatic clamps.

[0020] The beneficial effect of this technical solution is that the outer dimensions of the turntable body, which is expanded by the turntable, provide an installation position for the pneumatic clamp that is adapted to the structure of the pneumatic clamp.

[0021] Optionally, the welding turntable provided in this application further includes two support plates. Each support plate includes a first support portion and a second support portion that are perpendicularly connected to each other. The first support portion is arranged parallel to the first direction, and the second support portion is arranged perpendicular to the first direction. Connecting holes are formed on both the first and second support portions. Two first limiting threaded holes are formed on the turntable body, and the axial directions of the two first limiting threaded holes are located in the same radial direction of the turntable body. Two second limiting threaded holes are formed on the turntable fixing seat, and the two second limiting threaded holes are arranged in the same radial direction of the turntable body. The axial directions of the two second limiting threaded holes are parallel to the first direction. The two first support parts are detachably connected to the two first limiting threaded holes by bolts, and the two second support parts are fixedly connected to the two second limiting threaded holes by bolts.

[0022] The beneficial effects of this technical solution are as follows: When the welding turntable provided in this application is in use, the bolts connecting the first support part and the first limiting threaded hole are removed, allowing the turntable body to rotate smoothly relative to the turntable support shaft. When the welding turntable is in a stopped state, or when the welding turntable needs to be moved, the first support part is connected to the turntable body by bolts, making it difficult for the turntable body to rotate freely relative to the turntable support shaft, thereby reducing the probability of safety accidents caused by the rotation of the turntable body relative to the turntable support shaft when the welding turntable is not in use.

[0023] The technical solution provided in this application can achieve at least one of the following beneficial effects: When the welding turntable provided in this application is in use, a pneumatic clamp is installed on the turntable body, the second air passage is connected to the valve island of the pneumatic clamp, the air source is connected to the first air passage, and the power line and / or electrical signal line extend from bottom to top into the line channel and are connected to the stator of the mercury slip ring. Then, the mercury slip ring energizes the turntable body, the pneumatic clamp installed on the turntable body, and the workpiece to be welded installed on the pneumatic clamp. In this way, the operator can push the turntable body to rotate around the turntable support shaft, thereby rotating the workpiece and moving each welding point to the corresponding position of the welding gun for welding.

[0024] The additional technical features and advantages of this application will become more apparent from the following description or from practical application. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the specific embodiments of this application, the accompanying drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 A partial three-dimensional structural schematic diagram of one embodiment of the welding turntable provided in this application; Figure 2 This is a partial cross-sectional structural schematic diagram of one embodiment of the welding turntable provided in this application.

[0027] Figure label: 01. Through hole; 02. Dust cover; 03. Second slip ring fixing seat; 04. Turntable body; 05. Turntable; 06. Gas supply pipeline; 07. Through-hole for wiring; 08. Turntable mounting base; 09. Second support section; 10. First support section; 11. Bolts; 12. Support plate; 13. Turntable support shaft; 14. First slip ring fixing seat; 15. Second gas passage; 16. First connecting port; 17. Second connecting port; 18. Mounting hole; 19. First bearing; 20. Line channel; 21. Second bearing; 23. First air passage; 24. Second sealing ring; 25. Annular connecting groove; 26. First sealing ring. Detailed Implementation

[0028] The technical solutions of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0029] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0031] like Figure 1 and Figure 2 As shown, one aspect of this application provides a welding turntable, including a turntable mounting base 08, a turntable support shaft 13, a turntable body 04, and a mercury slip ring. The turntable support shaft 13 is vertically arranged, and its bottom end is fixed to the turntable mounting base 08. The turntable body 04 is fitted onto the turntable support shaft 13 and is coaxial with it. The stator of the mercury slip ring is fixed to the top end of the turntable support shaft 13, and the turntable body 04 is fixedly connected to the rotor of the mercury slip ring. A circuit channel 20 and a first air passage 20 extending in a first direction are formed in the turntable support shaft 13. The stator of the mercury slip ring extends into the circuit channel 20. A second air passage 15 for connecting with the valve island of the pneumatic clamp is formed in the turntable body 04. The first air passage 20 and the second air passage 15 are connected. The first direction is parallel to the axial direction of the turntable support shaft 13.

[0032] In this embodiment, the turntable body 04 is preferably a cylindrical component. In one embodiment, the first air passage 20 and the second air passage 15 can be connected by a pipeline, and a chamber to accommodate the pipeline is machined into the inner wall of the turntable body 04. Understandably, the mercury slip ring is coaxially arranged with the turntable support shaft 13.

[0033] When the welding turntable provided in this application is in use, the pneumatic clamp is installed on the turntable body 04, the second air passage 15 is connected to the valve island of the pneumatic clamp, the air source is connected to the first air passage 20, and the power line and / or electrical signal line extend from bottom to top into the line passage 20 and are connected to the stator of the mercury slip ring. Then, the mercury slip ring energizes the turntable body 04, the pneumatic clamp installed on the turntable body 04, and the workpiece to be welded installed on the pneumatic clamp. In this way, the operator can push the turntable body 04 to rotate the turntable body 04 around the turntable support shaft 13, thereby rotating the workpiece and moving each welding point to the corresponding position of the welding gun for welding.

[0034] Optionally, an annular connecting groove 25, coaxially arranged with the turntable support shaft 13, is formed on the inner wall of the turntable body 04. The opening of the annular connecting groove 25 faces the turntable support shaft 13. The first air passage 20 has a first connecting port 16, the orientation of which is perpendicular to the first direction. In the first direction, the position of the first connecting port 16 corresponds to the position of the opening of the annular connecting groove 25. The first connecting port 16 communicates with the annular connecting groove 25, and the second air passage 15 communicates with the annular connecting groove 25. Thus, when the turntable body 04 rotates relative to the turntable support shaft 13, the first connecting port 16 and the opening of the annular connecting groove 25 are always connected, ensuring that the first air passage 20 and the second air passage 15 are always connected, thereby allowing air pressure to be smoothly delivered from the air source to the valve island of the pneumatic clamp.

[0035] Optionally, the welding turntable provided in this embodiment further includes a first sealing ring 26 and a second sealing ring 24. A first annular groove and a second annular groove, both coaxially arranged with the turntable support shaft 13, are formed on the inner wall of the turntable body 04. The first annular groove is located on one side of the annular connecting groove 25 in the first direction, and the second annular groove is located on the other side of the annular connecting groove 25. The first sealing ring 26 is disposed within the first annular groove, and both the turntable support shaft 13 and the first sealing ring are in a sealing fit with the first sealing ring 26. The second sealing ring 24 is disposed within the second annular groove, and both the turntable support shaft 13 and the second sealing ring are in a sealing fit with the second sealing ring 24. Thus, by providing the first sealing ring 26 and the second sealing ring 24, air pressure is less likely to leak from both sides of the annular connecting groove 25.

[0036] Optionally, the welding turntable provided in this embodiment further includes a gas source pipe 06. The first gas passage 20 has a second connecting port 17 located near the bottom end of the turntable support shaft 13. The orientation of the second connecting port 17 is perpendicular to the first direction, and the gas source pipe 06 is connected to the second connecting port 17. This facilitates the connection between the first gas passage 23 and the horizontally arranged gas source pipe 06.

[0037] Optionally, the circuit channel 20 is coaxially arranged with the turntable support shaft 13, and the stator of the mercury slip ring is fixed to the top end of the circuit channel 20. This facilitates the direct insertion of the stator of the mercury slip ring into the circuit channel 20. Preferably, the welding turntable further includes a dust cover 02, a first slip ring fixing seat 14 fixed on the turntable support shaft 13, and a second slip ring fixing seat 03 fixed to the turntable body 04. The first slip ring fixing seat 14 includes a cylindrical portion, which is fitted and fixed to the stator of the mercury slip ring. The outer wall of the cylindrical portion is provided with threads, and the top end of the circuit channel 20 is provided with internal threads. The cylindrical portion is threadedly connected to the top end of the circuit channel 20. The first slip ring fixing seat 14 also includes a limiting portion, which is fixed to the outer wall of the cylindrical portion. After the cylindrical part is threadedly connected to the top end of the circuit channel 20, the limiting part abuts against the end face of the turntable support shaft 13. After the cylindrical part is threadedly connected to the top end of the circuit channel 20, the cylindrical part and the circuit channel 20 are coaxially arranged. The second slip ring fixing seat 03 is fixed to the top end of the turntable body 04. The second slip ring fixing seat 03 is fixedly connected to the rotor of the mercury slip ring. The dust cover 02 is fixed to the second slip ring fixing seat 03. A through hole 01 is provided at the top end of the dust cover 02. The through hole 01 is coaxially arranged with the mercury slip ring.

[0038] Optionally, a wiring through hole 07 is formed vertically through the turntable support shaft 13. The wiring through hole 07 is located near the bottom end of the turntable support shaft 13 and communicates with the wiring channel 20. This allows power lines and electrical signal lines to extend from both sides of the turntable support shaft 13 into the wiring through hole 07, and further into the wiring channel 20 to connect with the mercury slip ring.

[0039] Optionally, the welding turntable provided in this embodiment further includes a first bearing 19 fitted onto the turntable support shaft 13. The inner ring of the first bearing 19 is fixed to the turntable support shaft 13, and the outer ring of the first bearing 19 is fixed to the turntable body 04. In this way, the first bearing 19 separates and supports the turntable support shaft 13 and the turntable body 04, enabling the turntable body 04 to rotate relatively stably relative to the turntable support shaft 13.

[0040] Optionally, the welding turntable provided in this embodiment further includes a second bearing 21 fitted onto the turntable support shaft 13. The inner ring of the second bearing 21 is fixed to the turntable support shaft 13, and the outer ring of the second bearing 21 is fixed to the turntable body 04. The first bearing 19 is located above the second bearing 21. In this way, the first bearing 19 and the second bearing 21 together separate and support the turntable support shaft 13 and the turntable body 04, improving the stability of the turntable body 04 rotating relative to the turntable support shaft 13.

[0041] Optionally, the welding turntable provided in this embodiment further includes a turntable 05, which is an annular member coaxially arranged with the turntable body 04. The turntable 05 is fitted onto the turntable body 04 and fixed to it. The turntable 05 is used to mount pneumatic clamps. Thus, the expanded outer dimensions of the turntable body 04 by the turntable 05 provide a mounting position for the pneumatic clamps that adapts to their structure. Preferably, a plurality of mounting holes 18 are formed on the turntable 05, and the mounting holes 18 are evenly distributed circumferentially on the turntable 05. Each mounting hole 18 is preferably a threaded hole.

[0042] Optionally, the welding turntable provided in this embodiment further includes two support plates 12. Each support plate 12 includes a first support portion 10 and a second support portion 09 that are perpendicularly connected to each other. The first support portion 10 is arranged parallel to the first direction, and the second support portion 09 is arranged perpendicular to the first direction. Connecting holes are formed on both the first support portion 10 and the second support portion 09. Two first limiting threaded holes are formed on the turntable body 04, and the axial directions of the two first limiting threaded holes are located in the same radial direction of the turntable body 04. Two second limiting threaded holes are formed on the turntable fixing seat 08, and the two second limiting threaded holes are arranged in the same radial direction of the turntable body 04. The axial directions of the two second limiting threaded holes are parallel to the first direction. The two first support parts 10 are detachably connected to the two first limiting threaded holes one by one by bolts 11, and the two second support parts 09 are fixedly connected to the two second limiting threaded holes one by one by bolts 11.

[0043] Thus, when the welding turntable provided in this application is in use, the bolts 11 connecting the first support part 10 and the first limiting threaded hole are removed, allowing the turntable body 04 to rotate smoothly relative to the turntable support shaft 13. When the welding turntable is in a stopped state, or when the welding turntable needs to be moved, the first support part 10 is connected to the turntable body 04 by the bolts 11, making it difficult for the turntable body 04 to rotate freely relative to the turntable support shaft 13, thereby reducing the probability of safety accidents caused by the rotation of the turntable body 04 relative to the turntable support shaft 13 when the welding turntable is not in use. In the embodiments of this application, the support plate 12 is preferably an L-shaped plate.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A welding turntable, characterized in that, The system includes a turntable mounting base, a turntable support shaft, a turntable body, and a mercury slip ring. The turntable support shaft is vertically oriented, and its bottom end is fixed to the turntable mounting base. The turntable body is fitted onto the turntable support shaft and is coaxial with it. The stator of the mercury slip ring is fixed to the top end of the turntable support shaft. The turntable body and the rotor of the mercury slip ring are fixedly connected. A circuit channel and a first air passage extending in a first direction are formed within the turntable support shaft. The stator of the mercury slip ring extends into the circuit channel. A second air passage for connecting with the valve island of the pneumatic clamp is formed within the turntable body. The first air passage communicates with the second air passage. The first direction is parallel to the axial direction of the turntable support shaft.

2. The welding turntable according to claim 1, characterized in that, An annular connecting groove is formed on the inner wall of the turntable body, which is coaxially arranged with the turntable support shaft. The opening of the annular connecting groove faces the turntable support shaft. The first air passage has a first connecting port, which is perpendicular to the first direction. The position of the first connecting port in the first direction corresponds to the position of the opening of the annular connecting groove. The first connecting port communicates with the annular connecting groove, and the second air passage communicates with the annular connecting groove.

3. The welding turntable according to claim 2, characterized in that, It also includes a first sealing ring and a second sealing ring. A first annular groove and a second annular groove, both coaxially arranged with the turntable support shaft, are formed on the inner wall of the turntable body. The first annular groove is provided on one side of the second annular groove in the first direction, and the second annular groove is provided on the other side of the second annular groove. The first sealing ring is disposed in the first annular groove, and both the turntable support shaft and the first sealing ring are sealed with the first sealing ring. The second sealing ring is disposed in the second annular groove, and both the turntable support shaft and the second sealing ring are sealed with the second sealing ring.

4. The welding turntable according to claim 2, characterized in that, It also includes an air source pipeline, wherein the first air passage has a second connecting port located at the bottom end near the turntable support shaft, the orientation of the second connecting port being perpendicular to the first direction, and the air source pipeline is connected to the second connecting port.

5. The welding turntable according to claim 1, characterized in that, The circuit channel is coaxially arranged with the turntable support shaft, and the stator of the mercury slip ring is fixed to the top end of the circuit channel.

6. The welding turntable according to claim 5, characterized in that, A through hole for wiring is formed on the turntable support shaft, which is perpendicular to the turntable support shaft. The through hole is located near the bottom end of the turntable support shaft and is connected to the wiring channel.

7. The welding turntable according to claim 1, characterized in that, It also includes a first bearing fitted onto the turntable support shaft, with the inner ring of the first bearing fixed to the turntable support shaft and the outer ring of the first bearing fixed to the turntable body.

8. The welding turntable according to claim 7, characterized in that, It also includes a second bearing fitted onto the turntable support shaft, the inner ring of the second bearing being fixed to the turntable support shaft, the outer ring of the second bearing being fixed to the turntable body, and the first bearing being located above the second bearing.

9. The welding turntable according to any one of claims 1 to 8, characterized in that, It also includes a turntable, which is an annular component coaxially arranged with the turntable body. The turntable is fitted onto the turntable body and fixed to the turntable body. The turntable is used to install pneumatic clamps.

10. The welding turntable according to any one of claims 1 to 8, characterized in that, It also includes two support plates, each comprising a first support portion and a second support portion perpendicularly connected to each other. The first support portion is arranged parallel to the first direction, and the second support portion is arranged perpendicular to the first direction. Connecting holes are formed on both the first and second support portions. Two first limiting threaded holes are formed on the turntable body, and the axial directions of the two first limiting threaded holes are located in the same radial direction of the turntable body. Two second limiting threaded holes are formed on the turntable fixing seat, and the two second limiting threaded holes are arranged in the same radial direction of the turntable body. The axial directions of the two second limiting threaded holes are parallel to the first direction. The two first support parts are detachably connected to the two first limiting threaded holes by bolts, and the two second support parts are fixedly connected to the two second limiting threaded holes by bolts.

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