CN114192949A - Fine adjustment mechanism and spot welding device using same - Google Patents
Fine adjustment mechanism and spot welding device using same Download PDFInfo
- Publication number
- CN114192949A CN114192949A CN202110590109.5A CN202110590109A CN114192949A CN 114192949 A CN114192949 A CN 114192949A CN 202110590109 A CN202110590109 A CN 202110590109A CN 114192949 A CN114192949 A CN 114192949A
- Authority
- CN
- China
- Prior art keywords
- spot welding
- adjustment mechanism
- groove
- movable seat
- seat
- 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.)
- Pending
Links
- 238000003466 welding Methods 0.000 title claims abstract description 77
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 230000007547 defect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000012149 noodles Nutrition 0.000 description 1
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
- B23K11/10—Spot welding; Stitch welding
- B23K11/11—Spot welding
-
- 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
- B23K11/3063—Electrode maintenance, e.g. cleaning, grinding
-
- 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
-
- 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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
Abstract
The invention provides a fine adjustment mechanism and a spot welding device using the same; this fine-tuning includes: the upper surface of the fixed seat is provided with a first groove in the horizontal direction; a movable seat, wherein a second groove in the horizontal direction is arranged on the lower surface of the movable seat; the shaft rod is clamped between the first groove and the second groove; the movable seat can swing relative to the fixed seat by taking the shaft rod as a fulcrum; the spot welding device is arranged on the fine adjustment mechanism, so that the adjustment can be carried out by matching with the height drop.
Description
Technical Field
The present invention relates to a fine adjustment mechanism and a spot welding device using the fine adjustment mechanism, and more particularly, to a fine adjustment mechanism for spot welding a wire to an electrode in a winding process and a spot welding device using the fine adjustment mechanism.
Background
In a winding process of a general electronic component such as an inductor, a transformer and a filter, a wire is usually wound on an iron core, and a spot welding head is adopted to weld the wire ends of the wire on electrodes at two ends of the iron core; such a spot welding apparatus is disclosed in japanese patent No. 3140729, "a winding apparatus and a winding method", in which two spot welding units are provided around the periphery of an index table for intermittently rotating and conveying an iron core, a plurality of wire rods are spot-welded to a plurality of electrodes at one end of the iron core at the same time by a spot welding head of one spot welding unit, and after the plurality of wire rods are wound around the iron core, the plurality of wire rods are spot-welded to a plurality of electrodes at the other end of the iron core at the same time by a spot welding head of the other spot welding unit; the spot welding method is to drive the spot welding head to move vertically downwards, so that a spot welding surface perpendicular to the displacement path of the spot welding head can be pressed against the electrodes at the same horizontal height, wherein the spot welding surface can be a horizontal surface with an area covering the electrodes or a horizontal surface with the same number and the same horizontal height of the electrodes.
Disclosure of Invention
However, after a plurality of wires are simultaneously spot-welded on each electrode by a spot welding head, the wires on partial electrodes are often found to have overvoltage or false welding loss; the so-called overpressure is that the wire on the electrode is excessively squashed, so that the chance of wire breakage is increased; the false welding is that the wire on the electrode is not pressed on the electrode, so that the poor contact between the wire and the electrode is caused; the above-mentioned defects are mainly caused by assembly tolerances of the indexing table or machining tolerances of the iron core itself, so that the electrodes on the iron core carried by the indexing table are not located at the same horizontal height, and when the spot welding head is displaced vertically downward, the spot welding surfaces with the same horizontal height cannot simultaneously press against the electrodes at one time, so that the defect of overvoltage occurs after spot welding of the electrode with a higher height, and the defect of false welding occurs after spot welding of the electrode with a lower height.
Therefore, an object of the present invention is to provide a fine adjustment mechanism that can be adjusted in accordance with a height drop.
Another object of the present invention is to provide a spot welding apparatus that can reduce the occurrence of the above-described defect.
The fine adjustment mechanism according to the object of the present invention comprises: the upper surface of the fixed seat is provided with a first groove in the horizontal direction; a movable seat, wherein a second groove in the horizontal direction is arranged on the lower surface of the movable seat; the shaft rod is clamped between the first groove and the second groove; the movable seat can swing relative to the fixed seat by taking the shaft rod as a fulcrum.
According to another object of the present invention, there is provided a spot welding apparatus using the fine adjustment mechanism, comprising: the mounting seat is arranged on the movable seat of the fine adjustment mechanism; the spot welding mechanism is arranged on the mounting seat; the spot welding mechanism is provided with a spot welding head.
According to the fine adjustment mechanism and the spot welding device using the fine adjustment mechanism, the movable seat can swing relative to the fixed seat only by changing the force applied to one side of the movable seat, so that the spot welding head of the spot welding device is linked to swing along with the spot welding head, and the spot welding head is adjusted in cooperation with the height drop.
Drawings
Fig. 1 is a schematic perspective view of a fine adjustment mechanism in an embodiment of the present invention.
Fig. 2 is a schematic exploded perspective view of a fine adjustment mechanism according to an embodiment of the present invention.
FIG. 3 is a schematic view of the effect of the elastic member and the adjusting member on the movable seat according to the embodiment of the present invention.
FIG. 4 is a schematic view of the mandrel bar clamped between the first groove and the second groove in the embodiment of the invention.
Fig. 5 is a schematic view of a spot welding apparatus using a fine adjustment mechanism in an embodiment of the present invention.
Fig. 6 is an exploded perspective view of a spot welding apparatus according to an embodiment of the present invention.
FIG. 7 is a schematic view showing the intersection of the center axis of the spot welding surface and the center axis of the shaft rod in the embodiment of the present invention.
[ notation ] to show
A: fine adjustment mechanism
A1: fixed seat
A11: upper surface of
A12: first trench
A121: the first leaning surface
A122: second leaning surface
A13: stopper
A14: embedding hole
A2: movable seat
A21: lower surface
A22: second trench
A221: third leaning surface
A222: the fourth leaning surface
A23: through hole
A3: axle bar
A4: elastic piece
A5: fixing piece
A51: head part
A52: body part
A6: adjusting piece
A61: sleeve pipe
A62: adjusting knob
A63: movable part
A7: locating piece
A71: embedding hole
B: spot welding device
B1: mounting seat
B11: base body
B12: mounting platform
B13: first driving mechanism
B131: first driver
B132: leather belt
B133: guide rod
B134: sliding block
B135: sliding rail
B2: spot welding mechanism
B21: spot welding head
B22: mounting member
B23: second driving mechanism
B231: second driver
B232: first movable part
B233: second movable part
B3: oilstone mechanism
B31: oilstone seat
B311: oilstone sheet
B312: ground noodles
B32: third driving mechanism
B321: third driver
B322: sliding block
B323: sliding rail
d 1: distance between two adjacent plates
d 2: outer diameter
L1: long side axis
L2: short side axis
L3: central axis
L4: long side axis
L5: short side axis
L6: central axis
L7: central axis
T: table top
Detailed Description
Referring to fig. 1 and 2, an embodiment of the present invention can be described by taking the fine adjustment mechanism a as shown in the figure as an example, where the fine adjustment mechanism a includes:
a fixed seat A1, an upper surface A11 of which is provided with a first groove A12 in the Y-axis direction;
a movable seat A2, a lower surface A21 of which is provided with a second groove A22 in the Y-axis direction;
a shaft A3 sandwiched between the first groove A12 and the second groove A22;
the movable seat a2 can swing relative to the fixed seat a1 with the shaft rod A3 as a fulcrum.
Referring to fig. 2, two ends of the first trench a12 are respectively provided with a stopper a13, and the shaft A3 is disposed between the stoppers a13 and is limited by the stoppers a13 to move along the Y axis of the shaft A3; the first trench a12 and the second trench a22 are in a shape of inwardly converging widths.
Referring to fig. 2 and 3, one side of the fine adjustment mechanism a is provided with two elastic pieces a4 and two fixing pieces a5, and the elastic pieces a4 are respectively pivoted on the fixing pieces a 5; the fixing member A5 is provided with a head a51 and a body a52, the head a51 is arranged at one end of the body a52 and has a width wider than that of the body a52, the other end of the body a52 penetrates through the through hole a23 of the movable seat a2 and is embedded into the embedding hole a14 of the fixed seat a1, so that the fixing member A5 is fixedly arranged on the fixed seat a1, the elastic member a4 is pivotally sleeved on the body a52 and supported between the head a51 and the movable seat a2, and the elastic member a4 is pressed downward against one side of the movable seat a2 to provide a force for the movable seat a2 on the side to approach the fixed seat a 1.
Referring to fig. 2 and 3, an adjusting member a6 is disposed on the other side of the fine adjustment mechanism a on a positioning member a7, the adjusting member a6 is formed by a micrometer chuck for converting a rotational motion into a linear motion, the adjusting member a6 is disposed with a sleeve a61, an adjusting knob a62 and a movable member a 63; the sleeve A61 is embedded in an embedding hole A71 of the positioning member A7, and the movable member 63 can be adjusted to move relative to the sleeve A61 by rotating the adjusting knob A62; the movable member a63 of the adjusting member a6 presses downward against the other side of the movable seat a2 to provide a force for the movable seat a2 on the side to approach the fixed seat a 1.
Referring to fig. 3 and 4, the axle bar A3 has a circular cross-section, and the first groove a12 and the second groove a22 have V-shaped cross-sections; the first groove a12 has a first leaning surface a121 and a second leaning surface a122 perpendicular to each other, and the second groove a22 has a third leaning surface a221 and a fourth leaning surface a222 perpendicular to each other; the first leaning surface a121, the second leaning surface a122, the third leaning surface a221, and the fourth leaning surface a222 are respectively tangent to the outer periphery of the shaft rod A3, so that the displacement of the shaft rod A3 in the X-axis direction can be limited, and when the movable seat A2 swings relative to the fixed seat A1, the movement of the movable seat A2 in the X-axis direction is also limited; the fixed seat a1 and the movable seat a2 are spaced by the axle bar A3, and when the axle bar A3 is clamped between the first groove a12 and the second groove a22, the distance d1 between the upper surface a11 of the fixed seat a1 and the lower surface a21 of the movable seat a2 is always smaller than the outer diameter d2 of the axle bar A3.
Referring to fig. 5 and 6, the fine adjustment mechanism a can be used in a spot welding device B as shown in the figure, the fixed seat a1 is fixed on a horizontal table top T, and the spot welding device B is fixed on the movable seat a 2; this spot welding device B is provided with:
a mounting seat B1, which is arranged on the movable seat A2 of the fine adjustment mechanism A; the mounting seat B1 is provided with a seat body B11, a mounting platform B12 and a first driving mechanism B13 in the Y-axis direction; the mounting platform B12 is horizontally arranged at the upper end of the seat body B11, and the lower end of the seat body B11 can be fixedly arranged on the movable seat A2 in a screwing way; the first driving mechanism B13 is disposed on the mounting platform B12, and drives a belt B132 to link a guide rod B133 to rotate by a first driver B131, such as a motor, so that the guide rod B133 drives a slider B134 to move on a slide rail B135 in the Y-axis direction;
a spot welding mechanism B2, which is arranged on the mounting seat B1 and driven by the first driving mechanism B13; the spot welding mechanism B2 is provided with a spot welding head B21, a mounting piece B22 and a second driving mechanism B23 in the Z-axis direction; the spot welding head B21 has a horizontal spot welding surface B211; the spot welding mechanism B2 is fixedly arranged on the sliding block B134 of the first driving mechanism B13 by a mounting piece B22; the second driving mechanism B23 is disposed on the mounting member B22, and drives a first moving member B232 to link a second moving member B233 to move in the Z-axis direction by a second driver B231, such as a pneumatic cylinder, so that the spot welding head B21 is driven by the second moving member B233 to move in the Z-axis direction;
a oilstone mechanism B3 arranged on the mounting seat B1; the oilstone mechanism B3 is provided with an oilstone seat B31 and a third driving mechanism B32 in the X-axis direction; the oilstone seat B31 is provided with an oilstone sheet B311 for grinding the spot welding surface B211 of the spot welding head B21 on a grinding surface B312; the third driving mechanism B32 drives a slider B322 to move on a slide rail B323 in the X-axis direction by a third driver B321 such as a pneumatic cylinder; the oilstone seat B31 is driven by the slide block B322 to move in the X-axis direction.
Referring to fig. 7, the spot welding plane B211 and the grinding plane B312 are parallel; the spot welding face B211 has a horizontal long side axis L1, a horizontal short side axis L2 and a vertical central axis L3; the grinding face B312 has a horizontal long side axis L4, a horizontal short side axis L5, and a vertical central axis L6; the axle bar a3 has a horizontal central axis L7; in a top view, the long axis L1, the long axis L4 and the central axis L7 are parallel to and overlap each other, and the short axis L2 and the short axis L5 are parallel to and perpendicular to the central axis L7; the central axis L3, the central axis L6 intersect the central axis L7.
In the embodiment of the invention, the fine adjustment mechanism and the spot welding device using the fine adjustment mechanism are implemented, and the spot welding device B is acted by the fine adjustment mechanism A to adjust the horizontal height of a spot welding surface B211 of the spot welding head B21;
the movable seat a2 uses the shaft rod A3 as a fulcrum, and applies force downwards to two sides of the movable seat a2 by the elastic piece a4 and the adjusting piece a6 respectively, so that the lower surface a21 of the movable seat a2 and the upper surface a11 of the fixed seat a1 keep parallel in a normal state, and the spot welding surface B211 of the spot welding head B21 is maintained at the same horizontal height;
when the adjustment is needed, the adjusting knob a62 is rotated to make the movable member a63 perform telescopic displacement relative to the sleeve a61 to change the force applied to one side of the movable seat a2, and the movable seat a2 swings to one side or the other side according to the distance that the movable member a63 protrudes out of the sleeve a61, so as to change the angle between the lower surface a21 and the upper surface a11, so that the spot welding head B21 can swing to make the spot welding surface B211 not at the same horizontal height.
According to the fine adjustment mechanism and the spot welding device using the fine adjustment mechanism, provided by the embodiment of the invention, the movable seat A2 can swing relative to the fixed seat A1 only by changing the force applied to one side of the movable seat A2, so that the spot welding head B21 of the spot welding device B is linked to swing along with the movable seat A1, and the height drop is adjusted in a matching manner.
The above description is only a preferred embodiment of the present invention, and the scope of the present invention should not be limited thereby, and all the simple equivalent changes and modifications made in the claims and the description of the present invention are within the scope of the present invention.
Claims (10)
1. A fine-tuning mechanism comprising:
the upper surface of the fixed seat is provided with a first groove in the horizontal direction;
a movable seat, wherein a second groove in the horizontal direction is arranged on the lower surface of the movable seat;
the shaft rod is clamped between the first groove and the second groove;
the movable seat can swing relative to the fixed seat by taking the shaft rod as a fulcrum.
2. The fine tuning mechanism of claim 1, wherein the first and second grooves are tapered inward in width.
3. The micro-adjustment mechanism of claim 1, wherein the mandrel has a circular cross-section; the first groove is provided with a first leaning surface and a second leaning surface which are vertical to each other; the second groove is provided with a third leaning surface and a fourth leaning surface which are vertical to each other; the first leaning surface, the second leaning surface, the third leaning surface and the fourth leaning surface are respectively tangent with the outer periphery of the shaft rod.
4. The micro-adjustment mechanism of claim 1, wherein the mandrel has a circular cross-section; the distance between the upper surface and the lower surface is smaller than the outer diameter of the shaft rod.
5. The fine tuning mechanism as claimed in claim 1, wherein the first groove has a stopper at each end thereof, and the shaft is disposed between the stoppers.
6. The fine adjustment mechanism as claimed in claim 1, wherein one side of the fine adjustment mechanism is provided with an elastic member, and the other side of the fine adjustment mechanism is provided with an adjustment member; the elastic piece provides a force for the movable seat to approach the fixed seat; the adjusting piece provides a force for the movable seat to approach the fixed seat.
7. The fine adjustment mechanism of claim 6, wherein the elastic member presses down against one side of the movable seat; the adjusting piece presses the other side of the movable seat downwards.
8. A spot welding apparatus using the fine adjustment mechanism according to any one of claims 1 to 7, comprising:
the mounting seat is arranged on the movable seat of the fine adjustment mechanism;
the spot welding mechanism is arranged on the mounting seat; the spot welding mechanism is provided with a spot welding head.
9. The spot welding apparatus of claim 8 wherein said mounting base is provided with a whetstone mechanism having a whetstone piece for grinding by said spot welding head.
10. The spot welding device of claim 9 wherein the spot welding face of the spot welding head remains parallel to the grinding face of the oilstone sheet.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW109130080 | 2020-09-02 | ||
| TW109130080A TWI768456B (en) | 2020-09-02 | 2020-09-02 | Fine-tuning mechanism and spot welding device using fine-tuning mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114192949A true CN114192949A (en) | 2022-03-18 |
Family
ID=80645789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110590109.5A Pending CN114192949A (en) | 2020-09-02 | 2021-05-28 | Fine adjustment mechanism and spot welding device using same |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114192949A (en) |
| TW (1) | TWI768456B (en) |
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| JPH11254147A (en) * | 1998-03-10 | 1999-09-21 | Tadashi Suzuki | Spot welding machine |
| CN1880014A (en) * | 2005-06-17 | 2006-12-20 | 陶开富 | An electric knife sharpener |
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Also Published As
| Publication number | Publication date |
|---|---|
| TW202210195A (en) | 2022-03-16 |
| TWI768456B (en) | 2022-06-21 |
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