CN109834376B - Automatic adjust welding rifle head tungsten needle height positioning device - Google Patents
Automatic adjust welding rifle head tungsten needle height positioning device Download PDFInfo
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- CN109834376B CN109834376B CN201711213947.0A CN201711213947A CN109834376B CN 109834376 B CN109834376 B CN 109834376B CN 201711213947 A CN201711213947 A CN 201711213947A CN 109834376 B CN109834376 B CN 109834376B
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Abstract
The invention relates to a positioning device for automatically adjusting the height of a tungsten needle of a welding gun head, which is characterized in that: comprises a mounting frame; the locking sleeve is fixed on the mounting frame, a stepped hole with a large upper part and a small lower part is formed in the locking sleeve, the upper part of the small hole part is in a necking shape so as to form a locking hole, the locking hole is in extrusion fit with the outer inclined surface of the mounting tube so as to clamp the elastic bayonet, and a through hole is formed in the bottom surface of the small hole part; the locking gland is detachably connected to the locking sleeve and can be abutted against the top surface of the mounting pipe in the stepped hole to form downward pressure in the state that the locking gland is connected to the locking sleeve; the positioning plate is constrained on the mounting frame and can slide up and down along the mounting frame, the positioning plate is positioned below the locking sleeve, and a positioning distance is formed by the distance between the positioning plate and the bottom surface of the locking sleeve; the driving structure is used for driving the positioning plate to slide up and down. The positioning device can be used for conveniently, quickly and automatically positioning the tungsten needle, and has the advantage of accurate positioning.
Description
Technical Field
The invention relates to a positioning tool, in particular to a positioning device for automatically adjusting the height of a tungsten needle of a welding gun head.
Background
The common method for machining parts by using an argon arc welding machine is that a tungsten needle in the argon arc welding machine is inserted into an installation tube with an elastic bayonet at the lower end, a copper sleeve for clamping the elastic bayonet is sleeved at the lower end of the installation tube, and finally the installation tube fixed with the tungsten needle is inserted and fixed on a connector of the argon arc welding machine for welding. For example, a tungsten needle mounting structure is disclosed in a chinese utility model patent No. ZL CN201120216919.6 (publication No. CN202123313U) as a manual argon tungsten arc welding gun.
The argon arc welding machine has higher requirements on the height of a tungsten needle relative to a workpiece during welding, good welding quality can be guaranteed only when the height between the tungsten needle and the workpiece is proper, the surface of the tungsten needle is subjected to welding and is required to be polished, the optimal welding distance is changed after polishing and needs to be adjusted, and the height of the tungsten needle is recovered to the optimal welding distance.
How to design a device capable of conveniently and rapidly positioning a tungsten needle is one of the technical problems to be solved by the technical personnel in the field.
Disclosure of Invention
The invention aims to solve the technical problem of providing the tungsten needle height positioning device capable of conveniently, quickly and automatically positioning the tungsten needle and capable of automatically adjusting the welding gun head, and the positioning device also has the advantage of accurate positioning.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides an automatic adjust welding rifle head tungsten needle height positioning device which characterized in that: comprises a mounting frame; the locking sleeve is fixed on the mounting frame, a stepped hole with a large upper part and a small lower part is formed in the locking sleeve, a large hole part of the stepped hole is used for the mounting pipe inserted with the tungsten needle to axially pass through, a small hole part of the stepped hole is used for the elastic bayonet of the mounting pipe to extend into, the upper part of the small hole part is in a necking shape so as to form a locking hole, the locking hole is in extrusion fit with the outer inclined plane of the mounting pipe to clamp the elastic bayonet, and the bottom surface of the small hole part is provided with a through hole for the tungsten needle to penetrate out; the locking gland is detachably connected to the locking sleeve, and can be abutted against the top surface of the mounting pipe in the stepped hole to form downward pressure in the state that the locking gland is connected to the locking sleeve, so that the locking hole is ensured to be in extrusion fit with the outer inclined surface of the mounting pipe; the positioning plate is constrained on the mounting frame and can slide up and down along the mounting frame, the positioning plate is positioned below the locking sleeve, and the distance between the positioning plate and the bottom surface of the locking sleeve forms a positioning distance for positioning the tungsten needle; the driving structure is used for driving the positioning plate to slide up and down.
The rear end of the positioning plate is provided with a sliding block, the left side and the right side of the sliding block are mounted on the mounting frame through side sliding rail structures and can slide up and down, and the driving structure drives the sliding block to slide up and down. Because of the locating plate is platelike, inconvenient setting slide rail structure, the slider can be designed into the cubic, conveniently sets up the side guide rail, and the slider passes through side guide rail structrual installation to ensure that the slider slides steadily from top to bottom on the mounting bracket, and the cubic slider also does benefit to the drive structure drive.
The driving structure is used for driving the sliding block to slide up and down and locking the sliding block at a certain position, the driving structure comprises a threaded transmission rod driven by a motor to rotate, the lower end of the threaded transmission rod is supported on the mounting frame through a bearing, and the sliding block is provided with a threaded hole for the threaded transmission rod to pass through. This drive structure is the screw thread transmission structure, and not only transmission distance precision is high, and can the accurate distance that obtains the removal, and screw thread transmission can be at first infinitely variable control, can realize the locating plate short distance and adjust, can more accurately adjust out suitable tungsten needle height.
Further, the mounting frame is provided with an upper travel induction magnetic valve and a lower travel induction magnetic valve which are used for controlling the motor to stop working, the slider is fixedly provided with an induction rod matched with the upper travel induction magnetic valve and the lower travel induction magnetic valve, and the motor stops working after the induction rod moves upwards along with the slider to a position corresponding to the upper travel induction magnetic valve or the lower travel induction magnetic valve. The positioning space can be accurately obtained through the arrangement of the upper travel induction magnetic valve and the lower travel induction magnetic valve, and after the positions of the upper travel induction magnetic valve and the lower travel induction magnetic valve are set, the automatic adjustment of the positioning space can be realized.
Preferably, the upper stroke induction magnetic valve and the lower stroke induction magnetic valve are slidably mounted on a side portion of the mounting frame. Thus, the up-down position of the up-stroke induction magnetic valve and the down-stroke induction magnetic valve can be regulated in a stepless manner.
In order to conveniently take out the positioned installation pipe inserted with the tungsten needle from the locking sleeve, the top of the installation pipe is in threaded connection with a lifting rod which extends upwards, and a hole for the lifting rod to penetrate out upwards is formed in the locking gland. When the tungsten needle is taken out, the locking gland is taken down, then the lifting rod is held by hand, the installation pipe inserted with the tungsten needle can be taken out, and finally the lifting rod is screwed out of the installation pipe, so that the tungsten needle can be installed on a copper sleeve of a welding machine for use.
The top of the locking sleeve is fixed with a fixing plate which is fixed on the mounting rack, the fixing plate is provided with a socket for exposing the upper part of the stepped hole, the peripheral wall of the locking gland is provided with two laterally convex locking blocks, and the peripheral wall of the socket of the fixing plate is provided with a limiting groove for inserting the locking blocks into the notch. The locking gland is axially limited on the locking sleeve, and can be locked only by inserting, pressing and rotating during operation.
The upper part of the mounting rack is mounted on the back of the top plate of the welding machine frame through an upper guide rail structure, and the lower part of the mounting rack is mounted on the back of the bottom plate of the welding machine frame through a lower guide rail structure. Can set up whole positioner on the welding machine like this, after the location was accomplished, can give the welding machine use fast, positioner can slide about the mounting bracket relatively in addition, can remove the idle position of only welding machine frame with positioner, can not form the interference to normal welding operation.
Compared with the prior art, the invention has the advantages that: the positioning plate is driven to slide up and down by the driving structure, so that the positioning space formed between the positioning plate and the bottom surface of the locking sleeve can be adjusted, after the adjustment of the positioning space is finished, the locking gland is taken down, the mounting tube inserted with the tungsten needle in advance is inserted into the stepped hole, the elastic bayonet of the mounting tube extends into the small hole part of the stepped hole, the tungsten needle penetrates out of the through hole of the bottom surface of the locking sleeve until the lower end of the tungsten needle is abutted against the positioning plate, the mounting tube moves down, the tungsten needle moves up relative to the mounting tube due to the abutment of the lower end of the tungsten needle, the section of the locking hole in the stepped hole is similar to the internal structure of the copper sleeve under the simulation of the real use scene, then the locking gland is connected on the locking sleeve, the locking gland can be abutted against the top surface of the mounting tube in the stepped hole to form downward pressure under the state that the locking gland is connected on the locking sleeve, the clamping degree of the tungsten needle is basically consistent with the clamping degree of the installation tube in the actual use process, the position of the tungsten needle is the position of the tungsten needle in the actual application scene, the distance of the tungsten needle which is positioned by the device and exposed out of the installation tube is uniform and meets the optimal welding requirement through automatic adjustment of the positioning distance, after the tungsten needle is used, the locking gland is opened, the installation tube after the tungsten needle is positioned is taken out, and finally the tungsten needle is used on a copper sleeve of a sleeve welding machine.
Drawings
FIG. 1 is a schematic perspective view of an embodiment of the present invention;
FIG. 2 is a perspective cross-sectional view of an embodiment of the present invention;
FIG. 3 is a schematic perspective view of an embodiment of the present invention in use;
FIG. 4 is a perspective sectional view of the embodiment of the present invention in use;
FIG. 5 is an exploded perspective view of the embodiment of the present invention in use;
FIG. 6 is a schematic perspective view of the mounting tube with a tungsten needle after positioning according to the embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
As shown in fig. 1 to 6, a preferred embodiment of the present invention is shown.
The utility model provides an automatic adjust welding rifle head tungsten needle height positioning device which characterized in that: comprises that
The mounting frame 2 is arranged on the welding machine frame 1, the upper portion of the mounting frame 2 is mounted on the back face of the top plate of the welding machine frame 1 through an upper guide rail structure 9b, and the lower portion of the mounting frame is mounted on the back face of the bottom plate of the welding machine frame 1 through a lower guide rail structure 9 c.
The locking sleeve 3 is fixed on the mounting frame 2, a fixing plate 31 is fixed at the top of the locking sleeve 3, and the fixing plate 31 is fixed on the mounting frame 2. The locking sleeve 3 is internally provided with a stepped hole 6 with a large upper part and a small lower part, the fixing plate 31 is provided with a socket 311 for exposing the upper part of the stepped hole 6, a large hole part 62 of the stepped hole 6 is used for the installation tube 5 inserted with the tungsten needle 4 to axially pass through, a small hole part 61 of the stepped hole 6 is used for the elastic bayonet 51 of the installation tube 5 to extend into, the upper part of the small hole part 61 is in a necking shape so as to form a locking hole 611, the locking hole 611 is in extrusion fit with the external inclined surface 52 of the installation tube 5 to clamp the elastic bayonet 51, and the bottom surface of the small hole part 61 is provided with a through hole 63 for the tungsten needle 4.
The locking gland 7 is detachably connected to the locking sleeve 3, and can be abutted against the top surface of the mounting pipe 5 in the stepped hole 6 to form downward pressure under the condition that the locking gland 7 is connected to the locking sleeve 3, so that the locking hole 611 is ensured to be in extrusion fit with the outer inclined surface 52 of the mounting pipe 5; the locking gland 7 of the embodiment is locked with the fixing plate 31 by adopting the following structure, two laterally convex locking blocks 72 are arranged on the outer peripheral wall of the locking gland 7, and a limiting groove 312 for inserting the locking blocks into a notch 313 is arranged on the peripheral wall of a socket 311 of the fixing plate.
Locating plate 8, the restraint is on mounting bracket 2 and can slide from top to bottom along mounting bracket 2, and locating plate 8's rear end has slider 81, and slider 81's the left and right sides is through side slide rail structural mounting on mounting bracket 2 and can slide from top to bottom, and locating plate 8 is located the below of locking sleeve pipe 3, and the distance between locating plate 8 and the bottom surface of locking sleeve pipe 3 forms the location interval D that advances line location to tungsten needle 4.
And the driving structure is used for driving the positioning plate 8 to slide up and down. The driving structure drives the sliding block 81 to slide up and down. The driving structure comprises a threaded transmission rod 11 driven by the motor 10 to rotate, the lower end of the threaded transmission rod 11 is supported on the mounting frame 2 through a bearing, and a threaded hole for the threaded transmission rod 11 to pass through is formed in the sliding block 81.
An upper travel induction magnetic valve 12a and a lower travel induction magnetic valve 12b for controlling the motor 10 to stop working are arranged on the mounting frame 2, an induction rod 811 for matching with the upper travel induction magnetic valve 12a and the lower travel induction magnetic valve 12b is fixed on the slider 81, and the motor 10 stops working after the induction rod 811 moves up along with the slider to a position corresponding to the upper travel induction magnetic valve 12a or the lower travel induction magnetic valve 12 b. The upper stroke induction magnetic valve 12a and the lower stroke induction magnetic valve 12b are slidably mounted on the side of the mounting frame 2.
The top of the mounting pipe 5 is in threaded connection with a lifting rod 13 which extends upwards, and the locking gland 7 is provided with a hole 71 through which the lifting rod 13 penetrates upwards.
The working principle and the process of the positioning tool are as follows:
the positions of an upper travel induction magnetic valve 12a and a lower travel induction magnetic valve 12b are adjusted, the motor 10 works, the positioning plate 8 is driven to move upwards along with the slide block 81 under the action of screw transmission through the rotation of the screw transmission rod 11 until the induction rod 811 moves upwards along with the slide block to the position matched with the upper travel induction magnetic valve 12a, the motor 10 stops working,
adjusting a positioning distance D formed between a positioning plate 8 and the bottom surface of a locking sleeve 3, after the adjustment of the positioning distance D is completed, taking down a locking gland 7, inserting an installation tube 5 in which a tungsten needle 4 is inserted in advance into a stepped hole 6, inserting an elastic bayonet 51 of the installation tube 5 into a small hole part 61 of the stepped hole 6, enabling the tungsten needle 4 to penetrate through a through hole 63 on the bottom surface of the small hole part 61 until the lower end of the tungsten needle 4 is abutted against the positioning plate 8, moving down the installation tube 5, enabling the tungsten needle 4 to move upwards relative to the installation tube 5 due to the abutment of the lower end of the tungsten needle 4, enabling a section of a locking hole 611 in the stepped hole 6 to be similar to a copper bush internal structure under a simulated real use scene, then connecting the locking gland 7 to the locking sleeve 3, forming a downward pressure with the top surface of the installation tube 5 in the stepped hole 6 in a state that the locking gland 7 is connected to the locking sleeve 3, and enabling the elastic bayonet 51 to be abutted against an external inclined surface 52 of the installation tube, the clamping degree of the tungsten needle 4 is basically consistent with the clamping degree of the installation tube 5 in the actual use process, the position of the tungsten needle 4 is the position of the tungsten needle in the actual application scene, the distance that the tungsten needle 4 is exposed out of the installation tube 5 after being positioned by the device is uniform and meets the optimal welding requirement through automatic adjustment of the positioning distance D, after the tungsten needle is used, the locking gland 7 is opened, the installation tube 5 after the tungsten needle 4 is positioned is taken out, and as shown in figure 6, the tungsten needle is finally used on a copper sleeve of a sleeve welding machine.
Claims (8)
1. The utility model provides an automatic adjust welding rifle head tungsten needle height positioning device which characterized in that: comprises that
A mounting frame (2);
the locking sleeve (3) is fixed on the mounting frame (2), a stepped hole (6) with a large upper part and a small lower part is formed in the locking sleeve (3), a large hole part of the stepped hole (6) is used for allowing an installation pipe (5) inserted with a tungsten needle (4) to axially pass through, a small hole part (61) of the stepped hole (6) is used for allowing an elastic bayonet (51) of the installation pipe (5) to extend into, the upper part of the small hole part (61) is in a necking shape to form a locking hole (611), the locking hole (611) is in extrusion fit with an external inclined plane (52) of the installation pipe (5) to clamp the elastic bayonet (51), and the bottom surface of the small hole part (61) is provided with a through hole (63) for the tungsten needle (4) to penetrate out;
the locking gland (7) is detachably connected to the locking sleeve (3), and can be abutted against the top surface of the mounting pipe (5) in the stepped hole (6) to form downward pressure under the condition that the locking gland (7) is connected to the locking sleeve (3), so that the pressing fit of the locking hole (611) and the outer inclined surface (52) of the mounting pipe (5) is ensured;
the positioning plate (8) is constrained on the mounting frame (2) and can slide up and down along the mounting frame (2), the positioning plate (8) is positioned below the locking sleeve (3), and the distance between the positioning plate (8) and the bottom surface of the locking sleeve (3) forms a positioning distance (D) for positioning the tungsten needle (4);
the driving structure is used for driving the positioning plate (8) to slide up and down.
2. The automatic adjusting welding gun head tungsten needle height positioning device of claim 1, characterized in that: the rear end of locating plate (8) has slider (81), and the left and right sides of slider (81) passes through side slide rail structural mounting on mounting bracket (2) and can slide from top to bottom, the drive structure drive slider (81) slide from top to bottom.
3. The automatic adjusting welding gun head tungsten needle height positioning device of claim 2, characterized in that: the driving structure comprises a threaded transmission rod (11) driven by a motor (10) to rotate, the lower end of the threaded transmission rod (11) is supported on the mounting frame (2) through a bearing, and a threaded hole for the threaded transmission rod (11) to penetrate through is formed in the sliding block (81).
4. The automatic adjusting welding gun head tungsten needle height positioning device of claim 3, characterized in that: be equipped with on mounting bracket (2) and be used for controlling motor (10) stop work's last stroke response solenoid valve (12a) and lower stroke response solenoid valve (12b), be fixed with on slider (81) be used for with last stroke response solenoid valve (12a) and lower stroke response solenoid valve (12b) assorted response pole (811), move up to with last stroke response solenoid valve (12a) or lower stroke response solenoid valve (12b) relevant position back at response pole (811) along with the slider, motor (10) stop work.
5. The automatic adjustment welding rifle head tungsten needle height positioner of claim 4, characterized in that: the upper stroke induction magnetic valve (12a) and the lower stroke induction magnetic valve (12b) can be arranged on the side part of the mounting frame (2) in a vertically sliding mode.
6. The automatic adjusting welding gun head tungsten needle height positioning device of claim 1, characterized in that: the top threaded connection of installation pipe (5) has lifter (13) that upwards extends the setting, it has hole (71) that supplies lifter (13) to upwards wear out to open on locking gland (7).
7. The automatic adjusting welding gun head tungsten needle height positioning device of claim 1, characterized in that: the top of locking sleeve pipe (3) is fixed with fixed plate (31), and fixed plate (31) are fixed on mounting bracket (2), and open on fixed plate (31) has socket (311) that supplies the upper portion of shoulder hole (6) to appear, be equipped with two protruding locking pieces (72) of side on the periphery wall of locking gland (7), the perisporium of socket (311) of fixed plate is opened and is supplied the spacing groove (312) of locking piece insertion area breach (313).
8. The automatic welding gun head tungsten needle height adjusting and positioning device according to any one of claims 1 to 7 is characterized in that: the upper portion of mounting bracket (2) is installed at the back of the roof of welding machine frame (1) through upper rail structure (9b), the lower part of mounting bracket is installed at the back of the bottom plate of welding machine frame (1) through lower rail structure (9 c).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711213947.0A CN109834376B (en) | 2017-11-28 | 2017-11-28 | Automatic adjust welding rifle head tungsten needle height positioning device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711213947.0A CN109834376B (en) | 2017-11-28 | 2017-11-28 | Automatic adjust welding rifle head tungsten needle height positioning device |
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| CN109834376A CN109834376A (en) | 2019-06-04 |
| CN109834376B true CN109834376B (en) | 2020-11-24 |
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| CN113514469B (en) * | 2021-05-28 | 2024-06-04 | 华能苏州热电有限责任公司 | Auxiliary tool and method for peeping inspection of turbine blade holes of annular combustion chamber gas turbine |
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| CN105195875A (en) * | 2014-06-13 | 2015-12-30 | 广东福维德焊接股份有限公司 | Welding gun of lockhole effect TIG deep penetration welding |
| CN205437454U (en) * | 2016-03-31 | 2016-08-10 | 哈电集团（秦皇岛）重型装备有限公司 | A aircraft nose adjustment system for welding head |
| CN205702802U (en) * | 2016-03-30 | 2016-11-23 | 山东诺博泰智能科技有限公司 | A kind of tungsten electrode is changed and grinding integrated apparatus automatically |
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2017
- 2017-11-28 CN CN201711213947.0A patent/CN109834376B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2206176Y (en) * | 1994-07-30 | 1995-08-30 | 北京工业大学科技开发管理部 | Argon arc welding automatic welding blow lamp for contacting generating arc |
| CN1126128A (en) * | 1994-09-20 | 1996-07-10 | 亚历山大宾兹尔无限有限两合公司 | Arc torch or arc cutting torch and pole clamper of same |
| CN101269438A (en) * | 2008-05-10 | 2008-09-24 | 无锡华联科技集团有限公司 | Electrode regulator of single-path single-side welding mechanism |
| WO2010045676A1 (en) * | 2008-10-21 | 2010-04-29 | Key Welding Products Australia Pty Ltd | A welding torch |
| CN202123313U (en) * | 2011-06-24 | 2012-01-25 | 李厚坚 | Manual argon tungsten-arc welding gun |
| CN202667894U (en) * | 2012-06-19 | 2013-01-16 | 中国石油化工股份有限公司 | Structure of argon arc welding gun |
| CN105195875A (en) * | 2014-06-13 | 2015-12-30 | 广东福维德焊接股份有限公司 | Welding gun of lockhole effect TIG deep penetration welding |
| CN205702802U (en) * | 2016-03-30 | 2016-11-23 | 山东诺博泰智能科技有限公司 | A kind of tungsten electrode is changed and grinding integrated apparatus automatically |
| CN205437454U (en) * | 2016-03-31 | 2016-08-10 | 哈电集团（秦皇岛）重型装备有限公司 | A aircraft nose adjustment system for welding head |
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