CN109382575B - Portable pressure-adjustable welding gun head device and calibration method - Google Patents
Portable pressure-adjustable welding gun head device and calibration method Download PDFInfo
- Publication number
- CN109382575B CN109382575B CN201811502976.3A CN201811502976A CN109382575B CN 109382575 B CN109382575 B CN 109382575B CN 201811502976 A CN201811502976 A CN 201811502976A CN 109382575 B CN109382575 B CN 109382575B
- Authority
- CN
- China
- Prior art keywords
- welding
- connecting column
- trigger signal
- sliding block
- needle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/30—Features relating to electrodes
- B23K11/31—Electrode holders and actuating devices therefor
- B23K11/314—Spot welding guns, e.g. mounted on robots
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/36—Auxiliary equipment
Abstract
The invention discloses a portable pressure-adjustable welding gun head device which comprises a welding needle 1, a welding needle connecting column 2, an electrode connecting column 3 and a shell 11, wherein the welding needle 1 is arranged in the shell 11 and is fixed in the welding needle connecting column 2 in a screwing manner, the electrode connecting column 3 is arranged at the tail part of the welding needle 1 and is connected with one output end of a spot welding machine through an electrode connecting wire 8; be provided with sliding block 7 on casing 11, sliding block 7 can be on casing 11 axial adjustment remove, inside sliding block 7 one end gos deep into casing 11, in casing 11 between sliding block 7 and welding needle 1 afterbody, be provided with fixed stop 6, be provided with spring 5 between welding needle 1 afterbody and the fixed stop 6, welding needle spliced pole 2 is fixed with spring one end, it still is provided with trigger signal spliced pole 4, but trigger signal spliced pole 4 top is passed fixed stop 6 and axial displacement and sliding block 7 contact, transmission trigger signal. The invention is used for solving the problem of accurate pressure control during spot welding of the low-power spot welding machine and increasing the welding yield.
Description
Technical Field
The invention belongs to the technical field of resistance spot welding, and particularly relates to a portable pressure-adjustable welding gun head device and a calibration method.
Background
In the field of resistance spot welding, a welding electrode device of a high-power spot welding machine is generally heavier, and the control of welding pressure is generally controlled by a pneumatic device and is more complicated. The spot welding is carried out by manually pressing the spot welder with small power. Through the mode of manual pressure, because pressure is uncontrolled for welding process is uncontrolled, influences the yields. At present, a handheld welding gun is difficult to control pressure, and a portable welding gun head device capable of adjusting pressure can realize pressure adjustment control during spot welding through a specific calibration method.
Disclosure of Invention
The purpose of the invention is as follows: the portable pressure-adjustable welding gun head device and the calibration method are used for achieving accurate pressure control during spot welding of a low-power spot welding machine and increasing the welding yield.
The technical scheme is as follows:
a portable pressure-adjustable welding gun head device comprises a welding needle 1, a welding needle connecting column 2, an electrode connecting column 3 and a shell 11, wherein the welding needle 1 is arranged in the shell 11 and fixed in the welding needle connecting column 2 in a screwing mode, the electrode connecting column 3 is arranged at the tail of the welding needle 1 and is connected with one output end of a spot welding machine through an electrode connecting wire 8; the welding device is characterized in that a sliding block 7 is arranged on a shell 11, the sliding block 7 can be axially adjusted and moved on the shell 11, one end of the sliding block 7 extends into the shell 11, a fixed baffle 6 is arranged between the sliding block 7 and the tail of a welding needle 1 in the shell 11, a spring 5 is arranged between the tail of the welding needle 1 and the fixed baffle 6, one end of the spring is fixed by a welding needle connecting column 2, a trigger signal connecting column 4 is further arranged, and the top end of the trigger signal connecting column 4 penetrates through the fixed baffle 6 and can axially move to be in contact with the sliding block 7 to transmit a trigger signal.
The welding device is characterized in that a connecting column trigger signal lead 10 is arranged on the trigger signal connecting column 4, a sliding block trigger signal lead 9 is arranged on the sliding block 7, the other end of the connecting column trigger signal lead 10 and the other end of the sliding block trigger signal lead 9 are communicated with a control signal loop of the spot welding machine, when the trigger signal connecting column 4 is in contact with the sliding block 7, a trigger signal is sent out, and a singlechip control electrode connecting wire 8 in the spot welding machine is connected to enable the welding loop to be communicated to generate loop current.
The calibration method of the portable pressure-adjustable welding gun head device comprises the following steps:
step 1: fixing a welding gun head device by using a clamp, enabling the gun head to face upwards, installing a high-precision push-pull dynamometer on a matched test frame, and applying a precise force to a welding needle 1;
step 2: keeping the spring 5 to naturally extend, and recording the top end of the trigger signal connecting column 4 as a position 0; compressing the spring 5 to the bottom, recording the top end position of the trigger signal connecting column 4 as a position h, and selecting N position points at 0-h;
and step 3: respectively adjusting the sliding block 7 to N selected position points, applying force to the welding pin 1 through a high-precision push-pull dynamometer, enabling the top end of the trigger signal connecting column 4 to be in contact with the sliding block 7, and recording pressure values of all points at the N points;
and 4, step 4: and obtaining the values of the elastic coefficient k and the coefficient b of the spring according to the pressure value measured at each point, wherein x is the distance from the top end of the trigger signal connecting column 4 to the position 0:
F＝kx+b
and 5: according to the pressure adjusting range required by the spot welding machine, the corresponding relation between the pressure and the distance x is calculated according to the formula in the step 4, and the moving position of the sliding block 7 is calibrated on the shell 11.
Has the advantages that:
the invention relates to a portable pressure-adjustable welding gun head device and a calibration method, aiming at the problem that the welding spot yield is low due to the fact that the consistency of a welding process is influenced because of pressure adjustment control which is not possessed by a gun head matched with a low-power spot welding machine.
Drawings
Fig. 1 is a mechanical structural diagram of a welding torch head according to the present invention.
The welding probe comprises a welding probe 1, a welding probe connecting column 2, an electrode connecting column 3, a trigger signal connecting column 4, a spring 5, a fixed baffle 6, a sliding block 7, an electrode connecting line 8, a sliding block trigger signal lead 9, a connecting column trigger signal lead 10 and a shell 11.
The specific implementation mode is as follows:
the invention is described in further detail below with reference to the accompanying drawings:
referring to fig. 1, a portable pressure-adjustable welding gun head device is composed of a welding needle 1, a welding needle connecting column 2, an electrode connecting column 3, a trigger signal connecting column 4, a spring 5, a fixed baffle 6, a sliding block 7, an electrode connecting line 8, a sliding block trigger signal lead 9, a connecting column trigger signal lead 10 and a shell 11. The head of the welding needle 1 is conical, the top end of the welding needle is round, the welding needle is made of red copper and is fixed with the welding needle connecting column 2 through threaded connection, and the tail of the welding needle 1 is fixed with the electrode connecting column 3. The connecting column 2 fixes one ends of the trigger signal connecting column 4 and the spring 5, and the electrode connecting column 3 is sleeved in the spring 5. The trigger signal connecting column 4 is composed of a plurality of supporting columns and is symmetrically distributed. The spring 5 is a high-strength spring. The fixed baffle 6 is fixed on the shell 11 and connected with the other end of the spring 5, the electrode connecting column 3 penetrates out of a middle hole of the fixed baffle 6, and the trigger signal connecting column 4 penetrates out of peripheral holes of the fixed baffle 6. The sliding block 7 can slide at a set position, and is provided with a knob screw which is provided with a small knob handle and can be fixed by a hand knob. The electrode connecting wire 8 is connected with the electrode connecting column 3 and is used as a discharge path of an electrode at one end of the spot welding machine. The other end of the connecting column trigger signal lead wire 10 and the other end of the sliding block trigger signal lead wire 9 are communicated with a control signal loop of the spot welding machine, and a trigger signal is sent out and is communicated through a singlechip control electrode connecting wire 8 in the spot welding machine, so that the welding loop is communicated to generate loop current. The sliding block trigger signal lead 9 is connected with the sliding block 7, and the connecting column trigger signal lead 10 is connected with the trigger signal connecting column 4.
Set for sliding block 7 fixed in a definite position, weld, welding needle 1 contact welding point, the in-process of pressing, spring 5 takes place deformation, and when trigger signal spliced pole 4 and sliding block 7 contact, spot welder trigger signal made the switch open and accomplished the welding, as long as sliding block 7 rigidity, the elastic deformation of spring is fixed, when then guaranteeing welding at every turn, welded pressure is fixed.
A calibration method of a portable pressure-adjustable welding gun head device can be realized by the following steps:
step 1: fixing a welding gun head device by using a clamp, enabling the gun head to face upwards, installing a high-precision push-pull dynamometer on a matched test frame, and applying a precise force to a welding needle 1;
step 2: keeping the spring 5 to naturally extend, and recording the top end of the trigger signal connecting column 4 as a position 0; compressing the spring 5 to the bottom, recording the top end position of the trigger signal connecting column 4 as a position h, and selecting N position points at 0-h;
and step 3: respectively adjusting the sliding block 7 to N selected position points, applying force to the welding pin 1 through a high-precision push-pull dynamometer, enabling the top end of the trigger signal connecting column 4 to be in contact with the sliding block 7, and recording pressure values of all points at the N points;
and 4, step 4: and obtaining the values of the elastic coefficient k and the coefficient b of the spring according to the pressure value measured at each point, wherein x is the distance from the top end of the trigger signal connecting column 4 to the position 0:
F＝kx+b
and 5: according to the pressure adjusting range required by the spot welding machine, the corresponding relation between the pressure and the distance x is calculated according to the formula in the step 4, and the moving position of the sliding block 7 is calibrated on the shell 11.
Claims (3)
1. A portable pressure-adjustable welding gun head device comprises a welding needle (1), a welding needle connecting column (2), an electrode connecting column (3) and a shell (11), wherein the welding needle (1) is arranged in the shell (11) and fixed in the welding needle connecting column (2) in a screwing mode, the electrode connecting column (3) is arranged at the tail of the welding needle (1) and is connected with one output end of a spot welding machine through an electrode connecting wire (8); the welding device is characterized in that a sliding block (7) is arranged on a shell (11), the sliding block (7) can be axially adjusted and moved on the shell (11), one end of the sliding block (7) penetrates into the shell (11), a fixed baffle (6) is arranged between the sliding block (7) and the tail of a welding needle (1) in the shell (11), a spring (5) is arranged between the tail of the welding needle (1) and the fixed baffle (6), one end of the spring is fixed by a welding needle connecting column (2), a trigger signal connecting column (4) is further arranged, the top end of the trigger signal connecting column (4) penetrates through the fixed baffle (6) and can be axially moved to be in contact with the sliding block (7), and a trigger signal is transmitted.
2. A portable pressure-adjustable welding gun head device according to claim 1, characterized in that a connecting column trigger signal lead (10) is provided on the trigger signal connecting column (4), a sliding block trigger signal lead (9) is provided on the sliding block (7), the other end of the connecting column trigger signal lead (10) and the other end of the sliding block trigger signal lead (9) are connected to a control signal circuit of the spot welder, when the trigger signal connecting column (4) is in contact with the sliding block (7), a trigger signal is sent out and is connected through a single chip microcomputer control electrode connecting wire (8) in the spot welder, so that the welding circuit is connected to generate a circuit current.
3. A method of calibrating a portable adjustable pressure welding torch head apparatus according to claim 1, comprising the steps of:
step 1: fixing a welding gun head device by using a clamp, enabling the gun head to face upwards, installing a high-precision push-pull dynamometer on a matched test frame, and applying a precise force to a welding needle (1);
step 2: keeping the spring (5) to naturally extend, and recording the top end of the trigger signal connecting column (4) as a position 0; compressing the spring (5) to the bottom, recording the top end position of the trigger signal connecting column (4) as a position h, and selecting N position points at 0-h;
and step 3: respectively adjusting the sliding block (7) to N selected position points, applying force to the welding needle (1) through a high-precision push-pull force meter to enable the top end of the trigger signal connecting column (4) to be in contact with the sliding block (7), and recording pressure values of all points at the N points;
and 4, step 4: and obtaining the values of the elastic coefficient k and the coefficient b of the spring according to the pressure value measured at each point, wherein x is the distance from the top end of the trigger signal connecting column (4) to the position 0:
F＝kx+b
and 5: and (4) calculating the corresponding relation between the pressure and the distance x according to the formula in the step (4) and the required pressure adjusting range of the spot welding machine, and calibrating the moving position of the sliding block (7) on the shell (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811502976.3A CN109382575B (en) | 2018-12-10 | 2018-12-10 | Portable pressure-adjustable welding gun head device and calibration method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811502976.3A CN109382575B (en) | 2018-12-10 | 2018-12-10 | Portable pressure-adjustable welding gun head device and calibration method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109382575A CN109382575A (en) | 2019-02-26 |
| CN109382575B true CN109382575B (en) | 2021-01-29 |
Family
ID=65430542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811502976.3A Active CN109382575B (en) | 2018-12-10 | 2018-12-10 | Portable pressure-adjustable welding gun head device and calibration method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109382575B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110711981A (en) * | 2019-10-25 | 2020-01-21 | 徐州科恒奥制冷设备有限公司 | Be applied to welding rod extension device in narrow and small space of car |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB574495A (en) * | 1944-02-03 | 1946-01-08 | Mallory Metallurg Prod Ltd | Improvements in or relating to resistance welding machines |
| US4572940A (en) * | 1983-12-05 | 1986-02-25 | Weld-Equip B.V. | Welding head for resistance-welding |
| CN2178157Y (en) * | 1993-09-28 | 1994-09-28 | 张云江 | Device for testing electrode pressure of resistance welding |
| JPH0999380A (en) * | 1995-10-05 | 1997-04-15 | Mitsubishi Electric Corp | Resistance welding equipment |
| JP2001096370A (en) * | 1999-09-28 | 2001-04-10 | Matsushita Electric Ind Co Ltd | Resistance welder |
| CN2682560Y (en) * | 2004-02-11 | 2005-03-02 | 东莞日进电子有限公司 | Push-rod type double safety special-purpose switch |
| CN2829963Y (en) * | 2005-11-18 | 2006-10-25 | 王兆利 | Precision resistance welder with spring |
| CN102328150A (en) * | 2011-06-07 | 2012-01-25 | 烟台力凯电子科技有限公司 | Welding-head spot welding method |
| CN205290050U (en) * | 2016-01-20 | 2016-06-08 | 温州艺格自动化科技有限公司 | Adjustable pressure steady voltage formula automatic welder |
| CN108389745A (en) * | 2018-04-12 | 2018-08-10 | 东莞市鑫钻电子科技有限公司 | Detection switch |
-
2018
- 2018-12-10 CN CN201811502976.3A patent/CN109382575B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB574495A (en) * | 1944-02-03 | 1946-01-08 | Mallory Metallurg Prod Ltd | Improvements in or relating to resistance welding machines |
| US4572940A (en) * | 1983-12-05 | 1986-02-25 | Weld-Equip B.V. | Welding head for resistance-welding |
| CN2178157Y (en) * | 1993-09-28 | 1994-09-28 | 张云江 | Device for testing electrode pressure of resistance welding |
| JPH0999380A (en) * | 1995-10-05 | 1997-04-15 | Mitsubishi Electric Corp | Resistance welding equipment |
| JP2001096370A (en) * | 1999-09-28 | 2001-04-10 | Matsushita Electric Ind Co Ltd | Resistance welder |
| CN2682560Y (en) * | 2004-02-11 | 2005-03-02 | 东莞日进电子有限公司 | Push-rod type double safety special-purpose switch |
| CN2829963Y (en) * | 2005-11-18 | 2006-10-25 | 王兆利 | Precision resistance welder with spring |
| CN102328150A (en) * | 2011-06-07 | 2012-01-25 | 烟台力凯电子科技有限公司 | Welding-head spot welding method |
| CN205290050U (en) * | 2016-01-20 | 2016-06-08 | 温州艺格自动化科技有限公司 | Adjustable pressure steady voltage formula automatic welder |
| CN108389745A (en) * | 2018-04-12 | 2018-08-10 | 东莞市鑫钻电子科技有限公司 | Detection switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109382575A (en) | 2019-02-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4542277A (en) | Resistance spot welding gun with weld quality detection feature | |
| CN109382575B (en) | Portable pressure-adjustable welding gun head device and calibration method | |
| JP6765037B2 (en) | Welding equipment and welding method | |
| CA2533709A1 (en) | System and method for pulse welding | |
| JP2007500080A (en) | Spot welder head with pressure sensor | |
| CN210442364U (en) | Soil detection apparatus | |
| CN103308387A (en) | Static fusion welding force test device and method of electric contact material | |
| CN203148582U (en) | Non-adhibition type surface temperature-measuring thermocouple | |
| CN103115549A (en) | Handheld universal measuring instrument for M values of internal splines | |
| CN102853739B (en) | Measuring tool for measuring large end diameter of conical hole | |
| CN110788460A (en) | Arc length adjuster | |
| CN107717200B (en) | Accurate miniature lifetime of resistance spot welding electrode pressure real-time monitoring device | |
| CN204913048U (en) | Resistance welds secondary current detecting system | |
| CN111090009A (en) | Adjustable test fixture and test method for chip resistor | |
| CN201136080Y (en) | Supersonic welding apparatus | |
| CN110587164B (en) | Pressure welding composite welding equipment | |
| CN108918122B (en) | High-precision constant-pressure valve processing technology and production line thereof | |
| CN202162495U (en) | Double-buffer electronic spot welding machine head | |
| CN207840411U (en) | A kind of calibration apparatus for laser welding gas nozzle | |
| CN107422752B (en) | Force-applying adjustable measuring device | |
| CN210690688U (en) | Pole piece resistance measuring instrument driven by electric cylinder | |
| CN213274613U (en) | Pressure spring type non-immersion pipe clamp-shaped temperature transmitter | |
| CN216096937U (en) | Resistance welding spot welding head | |
| CN209239118U (en) | Accurate perforating device suitable for tubing | |
| CN218995611U (en) | Auxiliary measurement device for battery connecting wire |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |