TWM531877U - Electrode rapid correction jig for spot welding machine - Google Patents

Description

Electrode quick calibration fixture for spot welder

The present invention relates to a spot welding device, and more particularly to an electrode quick calibration jig for a spot welding machine.

The bonding between the thin metal members is often performed by a spot welding machine.

A general spot welding machine includes a machine table, an upper welding arm unit mounted on the machine table, and a lower welding arm unit mounted on the machine table opposite to the upper welding arm unit, the upper welding arm unit and the lower The welding arm units each have an electrode. When two metal workpieces are placed between the electrodes, and the electrodes generate pressure on the metal workpieces and current is passed through the electrodes, heat fusion can be made at the contact points of the metal workpieces.

And because the electrodes need to press the metal workpiece, the electrodes are easily worn out, and even cause misalignment, which affects the quality of the spot welding.

There is a multi-point spot welding machine (TW Publication No. 337230), which is mainly provided with a body on a machine of a welding machine, and a plurality of tanks are arranged inside the body, and each tank body is provided Each of the electrode bodies is mounted, and the tanks are connected with a pipeline, and the hydraulic fluid is used to fill the tanks, so that the electrode bodies can be automatically maintained at the same height when pressed.

Although the spot welding apparatus described above does not require maintenance to maintain the electrode bodies in an equal height state, the coaxiality or the spacing between the upper and lower electrodes cannot be calibrated, and therefore, the coaxial between the upper and lower electrodes The problem that the degree and spacing cannot be kept fixed remains to be solved.

Accordingly, it is an object of the present invention to provide an electrode quick correction jig for a spot welder that corrects the concentricity and spacing between the upper and lower electrodes.

Therefore, the present invention is used for the electrode quick calibration fixture of the spot welding machine, and corrects a pair of opposite and spaced electrodes of the spot welding machine, the electrode quick calibration fixture comprises a base, a positioning seat and a correction unit. The positioning seat is mounted on the base and is switchable between a coaxial correction position and a folding position. The correction unit is mounted on the positioning base and is switchable between the coaxial correction position and the folding position, the correction unit includes a correction seat mounted on the positioning seat and a slidably mounted to the correction a slider of the seat, the slider extending along an axis and capable of two-way sliding relative to the calibration seat along the axis, the slider having a first correction hole and a second correction hole on the axis, the positioning seat When the coaxial correction position is located, the correction unit is located between the electrodes, and the slider is slid along the axis with respect to the calibration seat in a first direction, and the first correction hole can correct whether one of the electrodes is located at the axis Aligning the slider along the axis with respect to the calibration seat in a second direction opposite to the first direction, the second correction hole corrects whether the other electrode is located on the axis, and the positioning seat is located at the folding In position, the correction unit is remote from the electrodes.

The utility model has the advantages that: the slider is operated to slide relative to the positioning seat, and the first correction hole and the second correction hole respectively correct the concentricity of the electrodes, thereby not only achieving the purpose of rapid correction, but also The structure is simple and the operation is easy.

Referring to FIG. 1 and FIG. 2, an embodiment of the present invention relates to an electrode quick calibration jig 100 for a spot welding machine 200. The spot welding machine 200 has a machine table 230 and a pair of opposite and spaced electrodes 210, 220. The electrodes 210, 220 are arranged up and down. The electrode quick calibration jig 100 can correct the electrodes 210 and 220 of the spot welding machine 100. The electrode quick calibration jig 100 includes a base 10, a positioning base 20 and a correction unit 30. In the normal state, the electrodes 210, 220 must be concentric and located on an axis L having a fixed separation distance between the ends of the electrodes 210, 220, but with the welding operation of the spot welder 100, The electrodes 210, 220 may be skewed or worn out.

The susceptor 10 is fixed to the machine 230 of the spot welder 200 and is adjacent to the electrode 220 located below. The pedestal 10 has a coaxial positioning hole 11 that is adjacent to the lower electrode 220, a spacing positioning hole 12 disposed on one side of the coaxial positioning hole 11 and an electrode 220 that is away from the lower electrode than the coaxial positioning hole 11 and The positioning hole 13 is located on the coaxial positioning hole 11 and the other side of the spacing hole 12 .

Referring to FIG. 3, the positioning base 20 is mounted on the base 10 and can be in a coaxial correction position (see FIGS. 6 and 7), a spacing correction position (see FIG. 10) and a folding position (see FIG. 8). And between Figure 9) conversion. In this embodiment, the positioning base 20 is rotatably mounted on the base 10, and the positioning base 20 is pivotable between the coaxial correction position, the spacing correction position and the folding position, and has a support frame 21 And a positioning member 22 mounted on the support frame 21. The support frame 21 has an L-shaped rod shape and has a pivot portion 211 pivotally mounted on the base 10 and a mounting hole 212 disposed on a side of the pivot portion 211. The positioning member 22 is mounted in the mounting hole 212. The positioning member 22 can be a commercially available product, such as a recovery indexing positioning post of the MISUMI model PMXSH12. In the normal state, the positioning member 22 can be embedded in the coaxial positioning hole. 11. The spacing positioning hole 12 or the folding positioning hole 13 can be positioned from the coaxial positioning hole 11, the spacing positioning hole 12 or the folding position when the positioning member 22 is pulled upward relative to the supporting frame 21. After the hole 13 is disengaged and the pulling force is released, the positioning member 22 has elasticity embedded in the coaxial positioning hole 11, the spacing positioning hole 12 or the folding positioning hole 13.

Referring to FIG. 4, the correcting unit 30 is mounted on the positioning base 20, and can be folded with the positioning seat 20 at a coaxial correction position (see FIGS. 6 and 7) and the spacing correction position (see FIG. 10). The calibration unit 30 includes a calibration base 31 mounted on the support frame 21 of the positioning base 20, a slider 32 slidably mounted on the calibration base 31, and a switch between the positions (see FIGS. 8 and 9). The operating member 33 is coupled to the slider 32.

The calibration base 31 includes a first end surface 311 perpendicularly intersecting the axis L, a second end surface 312 parallel to the first end surface 311, and a first end surface 312 disposed along the axis L and connectable to the first end surface 311. The sliding groove 313 of the second end surface 312 and a guiding groove 314 parallel to the axis L and communicating with the sliding groove 313 to the outside.

The slider 32 is mounted in the sliding slot 313 and extends along the axis L and can slide bidirectionally relative to the calibration seat 31 along the axis L. The slider 32 has a first side 321 intersecting the axis L, a first correction hole 322 located on the axis L and recessed by the first side surface 321 , a second side surface 323 parallel to and opposite to the first side surface 321 , one on the axis L and the second side 323 recessed second correction hole 324 and a lock hole 325 corresponding to the guide groove 314. In this embodiment, the operating member 33 is an airfoil bolt that can pass through the guiding slot 314 and is screwed into the locking hole 325. Unscrewing the operating member 33 and operating the operating member 33 can cause the slider 32 to follow The axis L is slid relative to the correcting seat 31, and tightening the operating member 33 causes the slider 32 to be positioned relative to the correcting seat 31.

With the overall structure of the above components, as shown in FIG. 2, FIG. 3, FIG. 6 and FIG. 7, when the operator rotates the positioning seat 20 to the coaxial correction position, the correction unit 30 is located at the same. Between the electrodes 210, 220, the operator can first loosen the operating member 33, and as shown by the solid line in FIG. 5, the operating member 33 is further pulled to interlock the slider 32 along the axis L relative to the correcting seat 31. Sliding in a first direction I (ie, an upward direction), the first side surface 321 can protrude from the first end surface 311, and the first correction hole 322 is sleeved outside the electrode 210, and the first correction hole 322 is utilized. It can be corrected whether the electrode 210 is located on the axis L. If the first correction hole 322 cannot be sleeved outside the electrode 210, it means that the electrode 210 is skewed and needs to be adjusted. As shown in the phantom line of FIG. 5, the operator then pulls the operating member 325 and causes the slider 32 along the axis L relative to the correcting seat 31 in a second direction II opposite to the first direction I (ie, downward). The second side surface 323 is protruded from the second end surface 312, and the second correction hole 324 is sleeved on the outside of the electrode 220. The second correction hole 324 can be used to correct whether the electrode 220 is located in the second end surface 312. On the axis L, if the second correction hole 324 cannot be sleeved outside the electrode 220, it means that the electrode 220 is skewed and needs to be adjusted.

During the correcting operation, the positioning member 22 is inserted into the coaxial positioning hole 11 to maintain the positioning of the support frame 21 relative to the base 10, and the positioning base 20 and the correcting unit 30 are opposite to the same. The susceptor 10 is held in position with the electrodes 210, 220, and the locator 20 is held in the coaxial correction position.

After the above-mentioned electrodes 210, 220 have been corrected for concentricity, the operator can further operate the slider 32 to slide relative to the calibration seat 31, and operate the slider 32 to the inside of the calibration seat 31, even if The first side surface 321 is located inside the first end surface 311, and the second side surface 323 is located inside the second end surface 312 (ie, the state of FIG. 3 and FIG. 4), and the operating member 33 is tightened to make the sliding. Block 32 is positioned relative to the correction block 31 along the axis L.

And the operator pulls the positioning member 22 of the positioning seat 20 again, and the positioning member 22 is removed from the coaxial positioning hole 11 to slightly rotate the positioning seat 20, and when the positioning seat 20 is as shown in FIG. When the coaxial correction position is rotated to a pitch correction position as shown in FIG. 10, the positioning member 22 can be inserted into the spacing positioning hole 12, so that the support frame 21 can be positioned relative to the base 10. And the positioning seat 20 can also be positioned relative to the base 10 and the electrodes 210, 220, and the positioning seat 20 is held at the pitch correction position. The first end surface 311 and the second end surface 312 of the calibration base 31 are located between the electrodes 210 and 220, and the electrodes 210 and 220 are respectively operated relative to the first end surface 311 and the second end surface 312. Moving, the spacing between the electrodes 210, 220 can be corrected. That is, the first end surface 311 of the calibration base 31 and the second end surface 312 are used as reference surfaces for correction, and the distance between the electrodes 210 and 220 is corrected. During the calibration, only the electrode 210 located above is operated to be released from the machine 230, and the electrode 210 is moved downward or the self-weight of the electrode 210 is used to make the bottom end of the electrode 210 abut. The end surface 311 can be automatically corrected to the normal position of the electrode 210, and the electrode 210 is locked to be locked with respect to the machine 230 after the adjustment. Then, the operator can operate the lower electrode 220 to release the state relative to the machine 230, and operate the electrode 220 to move upward, so that the top end of the electrode 220 can abut the second end surface 312, so that The top end of the electrode 220 is automatically corrected to the normal position, and the electrode 220 is operated to be locked with respect to the machine 230 after adjustment.

After the concentricity and the pitch of the electrodes 210 and 220 are corrected, the operator can pull the positioning member 22 of the positioning seat 20 again, and remove the positioning member 22 from the spacing positioning hole 12, and then re-spin. When the positioning member 20 is corresponding to the folding positioning hole 13 , the positioning member 22 can be inserted into the folding positioning hole 13 and the supporting frame 21 can be held relative to the base 10 . Positioning, and positioning the positioning base 20 and the correcting unit 30 relative to the base 10, the positioning base 20 is held in the folded position (see FIG. 1 imaginary line and FIGS. 8 and 9).

Therefore, the present invention utilizes the positioning seat 20 to drive the correction unit 30 to switch between the coaxial correction position, the spacing correction position and the folding position, and the slider 32 of the correction unit 30 can be operated relative to The electrodes 210 and 220 are corrected for the concentricity, and the first end surface 311 and the second end surface 312 of the calibration block 31 can provide the electrodes 210 and 220 for the end position correction, and the electrodes 210 and 220 can be corrected. The spacing between them.

It is to be noted that since the area of the first end surface 311 and the second end surface 312 of the calibration block 31 is much larger than the end portion cross-sectional area of the electrodes 210 and 220, the pitch correction of the electrodes 210 and 220 is performed. The electrodes 210 and 220 may not need to be aligned with the specific positions of the first end surface 311 and the second end surface 312. The spacing positioning holes 12 may be omitted (not shown), and the positioning member 22 is used. The friction between the pedestal 11 and the aligning unit 30 does not easily sway relative to the susceptor 10 and the electrodes 210 and 220, and the pitch correction can still be achieved.

In summary, the present invention is used for the electrode quick calibration fixture of the spot welding machine, which can achieve the purpose of rapid calibration, can improve the spot welding quality, and has a simple overall structure and easy operation, and can truly achieve the purpose of the present invention.

However, the above is only the embodiment of the present invention, and when it is not possible to limit the scope of the present invention, all the simple equivalent changes and modifications according to the scope of the patent application and the contents of the patent specification are still This new patent covers the scope.

100‧‧‧correcting fixture
10‧‧‧ Pedestal
11‧‧‧ coaxial positioning hole
12‧‧‧pitch positioning hole
13‧‧‧Close the positioning hole
20‧‧‧ Positioning Block
21‧‧‧Support frame
211‧‧‧Axis pivot
212‧‧‧Mounting holes
22‧‧‧ Positioning parts
30‧‧‧Correction unit
31‧‧‧ calibration seat
311‧‧‧ first end face
312‧‧‧ second end
313‧‧ ‧ chute
314‧‧‧ Guide slot
32‧‧‧ Slider
321‧‧‧ first side
322‧‧‧First calibration hole
323‧‧‧ second side
324‧‧‧Second correction hole
325‧‧‧Keyhole
33‧‧‧Operating parts
200‧‧‧ spot welder
210‧‧‧ electrodes
220‧‧‧electrode
230‧‧‧ machine

Other features and effects of the present invention will be apparent from the following description of the drawings, wherein: FIG. 1 is a perspective view of an embodiment of an electrode quick calibration jig for a spot welding machine; 2 is a perspective view of the embodiment; FIG. 3 is a cross-sectional view of the embodiment; FIG. 4 is a cross-sectional view taken along line IV-IV of FIG. 3; The figure shows a slider sliding relative to a fixed seat in a first direction or in a second direction; FIG. 6 is a plan view schematically showing a correction unit in a coaxial correction position; FIG. 7 is a view of FIG. Figure 8 is a plan view schematically showing the correction unit in a folded position; Figure 9 is a plan view of Figure 8; and Figure 10 is a top plan view of the embodiment, illustrating that the correction unit is located at a pitch Correct the position.

100‧‧‧correcting fixture

30‧‧‧Correction unit

10‧‧‧ Pedestal

31‧‧‧ calibration seat

12‧‧‧pitch positioning hole

32‧‧‧ Slider

13‧‧‧Close the positioning hole

33‧‧‧Operating parts

20‧‧‧ Positioning Block

200‧‧‧ spot welder

21‧‧‧Support frame

210‧‧‧ electrodes

211‧‧‧Axis pivot

220‧‧‧electrode

22‧‧‧ Positioning parts

230‧‧‧ machine

Claims (8)

An electrode quick calibration jig for a spot welder for correcting a pair of opposite and spaced electrodes of the spot welder, the electrode quick calibration jig comprising: a base; a positioning seat mounted on the a pedestal that is switchable between a coaxial correction position and a collapsed position; and a correction unit mounted to the locator and translatable between the coaxial correction position and the retracted position The correction unit includes a correction seat mounted on the positioning seat and a slider slidably mounted on the correction seat, the slider extending along an axis and capable of generating a two-way sliding relative to the correction seat along the axis, the slider Having a first correction hole and a second correction hole on the axis, the correction unit is located between the electrodes when the positioning seat is located at the coaxial correction position, and operating the slider along the axis relative to the correction The seat slides in a first direction, the first correction hole can correct whether one of the electrodes is located on the axis, and the slider is slid along the axis relative to the correction seat in a second direction opposite to the first direction The other electrode of the second correction may correct hole is located on the axis, which is positioned in the seat when the folding position, the correction unit away from these electrodes. The electrode quick calibration jig for a spot welding machine according to claim 1, wherein the correction base of the correction unit includes a first end surface perpendicularly intersecting the axis and a parallel and opposite to the first end surface a second end surface, and a sliding slot disposed along the axis and connectable to the first end surface and the second end surface, the slider is mounted in the sliding slot, and further has a first side intersecting the axis and a parallel And opposite to the second side of the first side, the first correcting hole is recessed by the first side, the second correcting hole is recessed by the second side, and when the positioning seat is located at the folding position, the first One side is located inside the first end surface, and the second side is located inside the second end surface. When the positioning seat is in the coaxial correction position, the first side surface may protrude outside the first end surface, and the second side surface may be convex Out of the outside of the second end face. The electrode quick correction jig for a spot welding machine according to claim 2, wherein the positioning seat is rotatably mounted to the base and has a pivotal portion pivotally pivotally mounted to the base, The positioning seat is pivotable between the coaxial correction position and the folding position. The electrode quick calibration jig for a spot welding machine according to claim 3, wherein the base has a coaxial positioning hole and a folding positioning hole, the positioning seat has a support frame and a mounting frame is mounted on the support frame The positioning member is inserted into the coaxial positioning hole when the positioning seat is located at the coaxial correction position, and the support frame is kept positioned relative to the base. When the positioning seat is located at the folding position, the positioning is performed. The piece is inserted into the folding positioning hole, and the support frame is kept positioned relative to the base. The electrode quick calibration jig for a spot welding machine according to claim 4, wherein the base further has a spacing positioning hole disposed on one side of the coaxial positioning hole, and the positioning seat can also be rotated by the coaxial correction position. Moving to a spacing correction position, the positioning member is inserted in the spacing positioning hole, and the first end surface and the second end surface of the calibration seat are located between the electrodes. The first end surface and the second end surface can correct the spacing of the electrodes. The electrode quick calibration jig for a spot welding machine according to claim 4, wherein the support frame of the correction unit has a mounting hole, and the positioning member is detachably mounted to the mounting hole. The electrode quick calibration jig for a spot welding machine according to claim 2, wherein the correction seat of the correction unit further has a guide groove parallel to the axis and connectable to the outside by the sliding groove, the slider further There is an operating member that can pass through the guide slot, and operating the operating member can cause the slider to slide relative to the correcting seat along the axis. The electrode quick calibration jig for a spot welding machine according to claim 7, wherein the slider further has a lock hole corresponding to the guide groove, and the operating member is an airfoil bolt through which the guide groove can pass. And screwing into the locking hole, unscrewing the operating member and operating the operating member to slide the slider relative to the correcting seat along the axis, and tightening the operating member to fix the slider relative to the correcting seat Generate positioning.