CN210099200U - Steel coil inner end resistance welding gun feeding device - Google Patents
Steel coil inner end resistance welding gun feeding device Download PDFInfo
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- CN210099200U CN210099200U CN201920774083.8U CN201920774083U CN210099200U CN 210099200 U CN210099200 U CN 210099200U CN 201920774083 U CN201920774083 U CN 201920774083U CN 210099200 U CN210099200 U CN 210099200U
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- counter weight
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Abstract
The utility model provides a steel coil inner resistance welding gun feeding device aiming at the problem that the manual operation stability is poor when the spot welding machine in the steel coil in the prior art moves back and forth, which comprises a supporting device for supporting the welding gun body, a feeding guiding device and a feeding driving device, wherein the supporting device comprises a frame and a supporting arm horizontally arranged on the frame, the rear end of the supporting arm is arranged on the frame, the front end of the supporting arm is connected with the welding gun body and is suspended outside the frame, the guiding direction of the feeding guiding device is parallel to the axis of the supporting arm, the feeding driving device drives the supporting device to reciprocate along the guiding direction of the feeding guiding device, the steel coil inner resistance welding gun feeding device provided by the utility model has better welding quality, manual operation can be reduced, welding efficiency is improved, and requirements on the operation level of operators can be reduced.
Description
Technical Field
The utility model relates to a coil of strip inner welding field, in particular to coil of strip inner resistance welding torch feeding device.
Background
In order to prevent the steel coil from loosening during multiple transfer, hoisting or heating in a bell-type furnace in the production process, the strip head of the inner ring of the steel coil and the inner ring of the steel coil are generally welded to prevent the strip head from being separated from the steel coil to cause accidents or dangers or rework. As shown in fig. 4, a single-side double spot welding method is adopted in the welding process of the special spot welding equipment for welding the inner ring belt head of the steel coil commonly used in the market at present, and the special spot welding equipment comprises a welding gun 70, a wheel disc 71, a turntable 72, a hanger 73 capable of freely rotating 180 degrees, a guide rail 74 and the like, wherein the turntable 72 is hung on a hook of an electric hoist 75 through a steel wire rope 77, the electric hoist 75 is arranged on the guide rail 74, a gun rod 76 of the welding gun 70 penetrates through the hung turntable 72, the welding gun comprises a welding gun frame and two electrodes, each electrode is connected with an output end of an electrode driving device through a conductive bridge, the electrode is driven by an electrode driving device to press or separate from the belt head, the axis of the gun rod is vertical to a plane determined by the axes of two electrode holding rods, the gun rod is supported by the combined action of the electric hoist and the turntable, when the welding is performed, after the belt head is aligned, the spot welding is, because the gun rod is hung in the air by the turntable and only one balance point supports the gun rod, the self-horizontal maintaining capability of the gun rod is poor, in addition, the gun head needs to move back and forth manually when moving back and forth, the stability of manual operation is poor, the moving direction of the welding gun 70 is difficult to ensure to be always parallel to the axial direction of the steel coil 60 when the welding gun 70 moves back and forth, the electricity of the welding gun 70 is extremely easy to collide with the steel coil 60, the operation not only takes time and has higher requirements on the operation level of workers, the workers need to be trained for skillful operation for a certain period of time, in addition, because the welding gun is pushed to move forward and backward manually, the specific position of the belt head cannot be seen due to the fact that people have a certain distance from the steel coil and are outside the steel coil, the operators need to move forward or backward to the next welding point according to the operation experience, and therefore, making the weld quality unstable.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a coil of strip inner resistance welder feeding device to the problem that the manual operation stability ratio is poor when the spot welder moves around in prior art coil of strip inner, can make welder body back-and-forth movement more steady.
The above technical purpose of the present invention can be achieved by the following technical solutions:
a resistance welding gun feeding device at the inner end of a steel coil comprises a supporting device for supporting a welding gun body, a feeding guide device and a feeding driving device; the supporting device comprises a rack and a supporting arm horizontally arranged on the rack, the rear end of the supporting arm is positioned on the rack, the front end of the supporting arm is used for being connected with the welding gun body and suspended outside the rack, the guiding direction of the feeding guiding device is parallel to the axis of the supporting arm, and the feeding driving device drives the supporting device to reciprocate along the guiding direction of the feeding guiding device;
the feeding guide device comprises four travelling wheels and two guide rails, wherein the four travelling wheels and the two guide rails are rotatably connected to the bottom of the rack, the two guide rails are parallel and horizontally arranged, the rotating axes of the four travelling wheels are horizontal and vertical to the length direction of the guide rails, the travelling wheels are grouped in pairs, and the two groups of travelling wheels roll along the two guide rails respectively;
the rear end of the guide rail is provided with a feeding limiting device;
the feeding driving device comprises a feeding motor, a feeding speed reducer and a feeding transmission pair, the feeding transmission pair comprises a driving chain wheel connected with an output shaft of the feeding speed reducer, a driven chain wheel coaxially connected with a rotating shaft of one of the pair of walking wheels and a chain connected with the driving chain wheel and the driven chain wheel, and the feeding motor and the feeding speed reducer are both arranged on the rack;
the feeding driving device is arranged at the rear end of the frame;
the supporting arm is connected with the rack in a sliding manner, the sliding direction of the supporting arm is vertical, and the rack is provided with a locking device for locking the height of the supporting arm;
the rack is provided with a counterweight mechanism, the counterweight mechanism comprises a counterweight, a counterweight rope, a counterweight pulley I and a counterweight pulley II, the counterweight pulley I and the counterweight pulley II are both rotatably connected to the top of the rack, one end of the counterweight rope is connected to the supporting arm, the connecting position of the counterweight rope is arranged at the front end of the part, located on the rack, of the supporting arm, and the other end of the counterweight rope bypasses the counterweight pulley I and the counterweight pulley and is connected with the counterweight backward.
The utility model discloses following beneficial effect has:
the support device is driven by the feeding driving device to move horizontally along the feeding guide device, so that the welding gun body can stably advance along a horizontal straight line, and an electrode of the welding gun is not easy to collide with a steel coil in the feeding process, thereby being beneficial to protecting the electrode; in addition, the distance between welding spots is convenient to control, welding precision is higher, the shunting problem caused by too close welding spot distance is avoided, welding quality is better relatively, manual operation can be reduced, welding efficiency is improved, and the requirement on the operation level of operators can be reduced.
Drawings
FIG. 1 is a schematic structural view of an embodiment of a steel coil inner end resistance welding gun feeding device of the present invention;
FIG. 2 is a schematic front view of an embodiment of a steel coil inner end resistance welding gun feeding device according to the present invention;
FIG. 3 is a schematic left side view of an embodiment of a steel coil inner end resistance welding gun feeding device according to the present invention;
fig. 4 is a schematic view of the structure of a prior art spot welding apparatus.
The description of the reference numerals,
10. a welding gun body;
20. a support device; 21. a frame; 22. a support arm; 23. a slide rail; 24. a slider; 25. a connecting seat; 26. a lead screw; 27. a nut;
30. a feed guide; 31. a guide rail; 32. a traveling wheel; 33. a rotating shaft;
40. a feed drive device; 41. a feed motor; 42. a feed speed reducer; 43. a feeding transmission pair; 44. a feeding limiting device;
50. a counterweight mechanism; 51. a counterweight; 52. a first counterweight pulley; 53. a second counterweight pulley; 54. a counterweight rope; 55. a counterweight guide rail; 56. a counterweight sliding block;
60. a steel coil;
70. a welding gun; 71. a wheel disc; 72. a turntable; 73. a hanger; 74. a guide rail; 75. an electric hoist; 76. a gun rod; 77. a steel cord.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings. In which like parts are designated by like reference numerals.
A feeding device of a resistance welding gun at the inner end of a steel coil is shown in figure 1 and comprises a supporting device 20, a feeding guide device 30 and a feeding driving device 40.
The support device 20 is used for supporting the welding gun body 10 and includes a frame 21 and a support arm 22 horizontally disposed on the frame 21. Referring to fig. 1 and 2, the supporting arm 22 is a cantilever, and its rear end is located on the frame 21, and the front end of the supporting arm 22 is suspended outside the frame 21. The welding gun body 10 is connected to the front end of the support arm 22, so that the interference between the frame 21 and the steel coil 60 during feeding can be avoided.
As shown in fig. 1, the feed guide 30 includes four traveling wheels 32 and two guide rails 31, which are disposed in parallel with the support arm. The two guide rails 31 are arranged in parallel and horizontally. The walking wheels 32 are all rotatably connected to the bottom of the frame 21, the rotating axes of the four walking wheels 32 are all horizontally arranged and perpendicular to the length direction of the guide rail 31, the four walking wheels 32 are in a group, the two walking wheels 32 of the same group are coaxially connected through a rotating shaft 33, and the two groups of walking wheels 32 are arranged in the front and back. The two road wheels 32 in each set roll on the two guide rails 31, respectively. Preferably, a feed limit device 44 is provided at the rear end of the guide rail 31, i.e., the end of the guide device remote from where the steel coil 60 is placed. The feeding limiting device 44 can be a limiting switch or a proximity switch, when the traveling wheel 32 contacts the feeding limiting device 44 or enters the range of the limiting device, the feeding limiting device gives a prompt, the feeding driving device 40 stops feeding after stopping, the traveling wheel 32 is prevented from derailing, meanwhile, the supporting device 20 is also prompted to be moved to the rear limit position, the welding gun body 10 is completely moved out of the steel coil 60, and the next operation can be carried out.
Preferably, the feeding driving device 40 includes a feeding motor 41, a feeding speed reducer 42, and a feeding transmission pair 43. Feed the vice 43 of transmission and can adopt band pulley transmission, also can adopt sprocket transmission, wherein preferred sprocket transmission, the utility model discloses in explain for the example of sprocket transmission with feeding the vice 43 of transmission, feed the vice 43 of transmission and include driven sprocket, drive sprocket and chain, be connected with drive sprocket through feeding speed reducer 42 by feeding motor 41, drive sprocket passes through the chain and is connected with driven sprocket, driven sprocket's shaft and walking wheel 32 coaxial coupling. The feeding motor 41 and the feeding speed reducer 42 are both fixedly connected with the frame 21. Preferably, the feed motor 41 and the feed reducer 42 are disposed at the rear end of the frame 21, and the driven sprocket is connected to the rotating shaft 33 of the set of traveling wheels 32 disposed at the rear end to form a rear-drive driving method, so that the feed driving device 40 is disposed at the rear end of the entire welding gun feeding device, and the weight of the cantilever portion of the support arm 22 and the weight of the welding gun body 10 are balanced by the weight of the feed driving device 40, thereby contributing to maintaining the balance of the entire device.
In the following, the two electrodes are provided on the resistance welding torch body, and the axis of the support arm is perpendicular to the plane defined by the two electrodes when the resistance welding torch body is mounted. When the welding gun body 10 needs to be fed, the feeding motor 41 is started to drive the travelling wheels 32 to rotate, the supporting device 20 moves towards the steel coil 60 along with the steel coil, the welding gun body 10 extends into the steel coil 60 to enable the electrode to move to the axial position where the first welding point is located, after the welding of the first welding point is completed, the feeding motor 41 is started to enable the welding gun body 10 to continue to move forwards to the position of the next welding point, the second welding point is welded, the feeding device is repeatedly fed until all the welding points are welded, the feeding motor 41 is reversely rotated to enable the welding gun body 10 to completely move out of the steel coil 60, and the front-.
Preferably, the support arm 22 is slidably connected to the frame 21 by a sliding pair, and a locking device is provided to lock the position of the support arm 22. The supporting arm 22 can slide up and down along the vertical direction to adjust the height of the supporting arm 22, so that the feeding device can adapt to steel coils 60 with different diameters. In this embodiment, the frame 21 is a frame structure, and includes four pillars. The sliding pair comprises four sliding rails 23 and sliding blocks 24 respectively matched with the four sliding rails 23. Four slide rails 23 are respectively and fixedly connected to the four upright posts, and the slide rails 23 are vertically arranged. The support arm 22 is connected to four sliders 24 by a connecting link 25. The sliding pair thus configured may help the support arm 22 to remain horizontal, helping the torch body 10 to run smoothly. The locking device can fix the connecting seat 25 by fastening a bolt, and can also be a screw nut device, preferably the latter, as shown in fig. 3, a vertical screw 26 is provided to be rotatably connected with the frame 21, and a nut 27 is provided to be in threaded connection with the screw 26 and fixedly connected with the connecting seat 25, so that the lifting of the supporting arm 22 can be realized by rotating the screw 26, and the locking of the supporting arm 22 can be realized by utilizing the self-locking function of the screw 26. Can drive lead screw 26 through manual mode and rotate, also can set up elevator motor and lifting reducer, lead screw 26 passes through lifting reducer motor and elevator motor's output shaft and is rotated by elevator motor drive elevator lead screw 26.
In order to reduce the driving force required for raising and lowering the support arm 22 and further improve the balance of the apparatus, it is preferable to provide a counterweight mechanism 50 on the frame 21. The counterweight mechanism 50 of the present invention preferably includes, as shown in fig. 1, a counterweight 51, a counterweight rope 54, a counterweight pulley one 52, and a counterweight pulley two 53. The first counterweight pulley 52 and the second counterweight pulley 53 are rotatably connected to the top of the frame 21, the rotating axes of the first counterweight pulley 52 and the second counterweight pulley 53 are parallel to the rotating axis of the traveling wheel 32, one end of a counterweight rope 54 is connected to the front end of the connecting seat 25, and the other end of the counterweight rope 54 sequentially rounds the first counterweight pulley 52 and the second counterweight pulley 53 and is connected with a counterweight 51 in a backward direction. Preferably, the counterweight 51 is slidably connected to the frame 21 through a counterweight sliding pair, the counterweight sliding pair includes a counterweight guide rail 55 fixedly connected to the frame 21 and a counterweight slider 56 fixedly connected to the counterweight 51, and the counterweight slider 56 is adapted to the counterweight guide rail 55, so that the movement of the counterweight 51 is more stable. In order to provide for smooth operation of the feeder as a whole, it is preferred that two sets of counterweight mechanisms 50 are provided, with the support arm 22 being located between the two sets of counterweight mechanisms 50.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.
Claims (7)
1. The utility model provides a coil of strip inner resistance welder feeding device which characterized in that: comprises a supporting device (20) for supporting a welding gun body (10), a feeding guide device (30) and a feeding driving device (40); the supporting device (20) comprises a rack (21) and a supporting arm (22) horizontally arranged on the rack (21), the rear end of the supporting arm (22) is located on the rack (21), the front end of the supporting arm (22) is used for being connected with the welding gun body (10) and suspended outside the rack (21), the guiding direction of the feeding guide device (30) is parallel to the axis of the supporting arm, and the feeding driving device (40) drives the supporting device (20) to reciprocate along the guiding direction of the feeding guide device (30).
2. The steel coil inner end resistance welding gun feeding device according to claim 1, characterized in that: feed guider (30) including rotate connect four walking wheels (32) and two guided way (31) in frame (21) bottom, two guided way (31) are parallel and the level sets up, the length direction of the axis of rotation level and the perpendicular to guided way (31) of four walking wheels (32), two liang of a set of walking wheels (32), two sets of walking wheels (32) roll along two guided way (31) respectively.
3. The steel coil inner end resistance welding gun feeding device according to claim 2, characterized in that: the rear end of the guide rail (31) is provided with a feeding limiting device (44).
4. The steel coil inner end resistance welding gun feeding device according to claim 2, characterized in that: the feeding driving device (40) comprises a feeding motor (41), a feeding speed reducer (42) and a feeding transmission pair (43), the feeding transmission pair (43) comprises a driving chain wheel connected with an output shaft of the feeding speed reducer (42), a driven chain wheel coaxially connected with a rotating shaft (33) of one pair of walking wheels (32) and a chain connecting the driving chain wheel and the driven chain wheel, and the feeding motor (41) and the feeding speed reducer (42) are arranged on the rack (21).
5. The steel coil inner end resistance welding gun feeding device according to claim 1 or 4, characterized in that: the feed driving device (40) is arranged at the rear end of the frame (21).
6. The steel coil inner end resistance welding gun feeding device according to claim 1, characterized in that: the supporting arm (22) is connected with the machine frame (21) in a sliding mode, the sliding direction of the supporting arm (22) is vertical, and a locking device for locking the height of the supporting arm (22) is arranged on the machine frame (21).
7. The steel coil inner end resistance welding gun feeding device according to claim 6, characterized in that: be provided with counter weight mechanism (50) on frame (21), counter weight mechanism (50) are including counter weight thing (51), counter weight rope (54), counter weight pulley (52), counter weight pulley two (53), counter weight pulley (52) and counter weight pulley two (53) are all rotated and are connected at the top of frame (21), the connection of counter weight rope (54) one end is on support arm (22), and the front end of the part that the hookup location set up on support arm (22) is located frame (21), and counter weight rope (54) other end is walked around counter weight pulley (52) and counter weight pulley two (53) and is connected counter weight thing (51) backward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920774083.8U CN210099200U (en) | 2019-05-27 | 2019-05-27 | Steel coil inner end resistance welding gun feeding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920774083.8U CN210099200U (en) | 2019-05-27 | 2019-05-27 | Steel coil inner end resistance welding gun feeding device |
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| Publication Number | Publication Date |
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| CN210099200U true CN210099200U (en) | 2020-02-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920774083.8U Active CN210099200U (en) | 2019-05-27 | 2019-05-27 | Steel coil inner end resistance welding gun feeding device |
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| CN (1) | CN210099200U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114055067A (en) * | 2020-07-29 | 2022-02-18 | 上海宝信软件股份有限公司 | Movable inner support welding device suitable for aluminum coil |
-
2019
- 2019-05-27 CN CN201920774083.8U patent/CN210099200U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114055067A (en) * | 2020-07-29 | 2022-02-18 | 上海宝信软件股份有限公司 | Movable inner support welding device suitable for aluminum coil |
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