JP5221009B2 - C type welding gun pressure drive device - Google Patents
C type welding gun pressure drive device Download PDFInfo
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- JP5221009B2 JP5221009B2 JP2006171223A JP2006171223A JP5221009B2 JP 5221009 B2 JP5221009 B2 JP 5221009B2 JP 2006171223 A JP2006171223 A JP 2006171223A JP 2006171223 A JP2006171223 A JP 2006171223A JP 5221009 B2 JP5221009 B2 JP 5221009B2
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- 238000003466 welding Methods 0.000 title claims description 23
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 206010028980 Neoplasm Diseases 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 201000011510 cancer Diseases 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Description
本発明は、モ―タの回転軸に中空貫通孔を形成し、該モ―タによって駆動され該モ―タの前記中空貫通孔内に引き込まれる部位を有する加圧軸を備えたＣ型溶接ガンに関するものである。 The present invention relates to a C-type welding provided with a pressure shaft having a hollow through hole formed in a rotating shaft of a motor and having a portion driven by the motor and drawn into the hollow through hole of the motor. It is about cancer.
従来、モ―タによって駆動され該モ―タ内に引き込まれる部位を有する加圧軸を備えた溶接ガンで、前記加圧軸端側にナットを配置して該ナットを回転不能とし、モ―タの回転軸を中空軸に形成し、該中空回転軸に、ねじ軸を固定すると共に該ねじ軸のねじと螺合する前記ナットを収納可能とする空間を形成した溶接ガンの加圧駆動装置がある。（例えば特許文献１参照）。 Conventionally, in a welding gun having a pressure shaft driven by a motor and having a portion that is pulled into the motor, a nut is arranged on the end side of the pressure shaft so that the nut cannot be rotated. A welding gun pressure drive device in which a rotary shaft is formed in a hollow shaft, and a space is formed in the hollow rotary shaft so that the screw shaft is fixed and the nut to be screwed with the screw of the screw shaft can be accommodated. There is. (For example, refer to Patent Document 1).
また、モ―タの回転軸に中空貫通孔を形成し、該モ―タによって駆動され該モ―タの前記中空貫通孔内に引き込まれる部位を有する加圧軸を備えたＣ型溶接ガンで、回転軸の端面に形成したタップ孔にナットを固定し、該ナットと螺合するねじを備えたねじ軸を加圧軸とし、該加圧軸が回転不能になされ且つ前記中空貫通孔内に引き込まれる部位を有するようになされたＣ型溶接ガンの加圧駆動装置がある。（例えば特許文献２参照）。 A C-type welding gun having a pressurizing shaft having a hollow through hole formed in the rotating shaft of the motor and having a portion driven by the motor and drawn into the hollow through hole of the motor; The nut is fixed to the tapped hole formed on the end surface of the rotating shaft, and the screw shaft provided with the screw to be screwed with the nut is used as the pressure shaft. There is a C-type welding gun pressurizing drive device having a retracted portion. (For example, refer to Patent Document 2).
ところで、上記従来例の前者の溶接ガンの加圧駆動装置の場合には、ナットが配置された加圧軸が、モ―タの中空回転軸内にも設けられているため、駆動装置の短縮化が可能であるが、モ―タの中空回転軸に、ねじ軸を固定する部位やナットを収納可能とする空間を形成する必要があるため、通常の中空モ―タの回転軸をそのまま採用することができずモ―タの回転軸を特殊加工したものとする必要があり、その加工が容易ではない。 By the way, in the former welding gun pressure drive device of the above-mentioned conventional example, since the pressure shaft on which the nut is arranged is also provided in the hollow rotary shaft of the motor, the drive device is shortened. However, since it is necessary to form a space that can accommodate the screw shaft and nut in the hollow rotation shaft of the motor, the rotation shaft of the normal hollow motor is used as it is. It is necessary to make the motor rotation shaft specially machined, and the machining is not easy.
また、上記従来例の後者のＣ型溶接ガンの加圧駆動装置の場合には、加圧軸がねじ軸となっているため加圧時にねじ軸に溶接スパッタが付着する虞れがあることからねじ軸の保護手段を必要とすると共にねじ軸の回り止め機構が容易ではない、という問題がある。 Further, in the case of the pressure driving device for the latter C-type welding gun of the conventional example, since the pressure shaft is a screw shaft, there is a possibility that welding spatter may adhere to the screw shaft during pressurization. There are problems that a means for protecting the screw shaft is required and that the rotation prevention mechanism for the screw shaft is not easy.
本発明は、従来の技術の有するこのような問題点に鑑みてなされたものであり、その目的とするところは、前記後者のような通常の中空モ―タの回転軸をそのまま採用し、該回転軸の端面にねじ軸固定部材を固定することにより、ねじ軸の回転で加圧軸を往復動させて、安全でコスト安で全体としてコンパクトなＣ型溶接ガンの加圧駆動装置を提供しようとするものである。 The present invention has been made in view of such problems of the prior art, and the object of the present invention is to employ a rotating shaft of a normal hollow motor such as the latter as it is, By fixing the screw shaft fixing member to the end surface of the rotary shaft, the pressure shaft is reciprocated by the rotation of the screw shaft to provide a safe, low-cost and compact overall pressure drive device for a C-type welding gun. It is what.
上記目的を達成するために、本発明におけるＣ型溶接ガンの加圧駆動装置は、モ―タの回転軸に中空貫通孔を形成し、該モ―タによって駆動され該モ―タの前記中空貫通孔内に引き込まれる部位を有する加圧軸を備えたＣ型溶接ガンにおいて、前記モ―タの回転軸端面に形成したタップ孔にねじ軸固定部材を固定して該ねじ軸固定部材を前記中空貫通孔内に位置させ、ねじ軸の先端側が収納され該ねじ軸と加圧軸とが相対的に往復動可能となるねじ軸挿入孔を前記加圧軸の後部側から軸線方向中心部に亘って加圧軸に対して形成すると共に該加圧軸端側にナットを配置して該ナットを加圧軸に対して回転不能とし、前記ねじ軸固定部材内に、前記ねじ軸を固定する空間を形成すると共に該ねじ軸と螺合する前記ナットを収納可能とする空間を形成したことを特徴とするものである。
In order to achieve the above object, a pressurization drive device for a C-type welding gun according to the present invention has a hollow through hole formed in a rotating shaft of a motor, and is driven by the motor to form the hollow of the motor. In a C-type welding gun having a pressure shaft having a portion drawn into a through hole, the screw shaft fixing member is fixed to a tap hole formed on the end surface of the rotating shaft of the motor, and the screw shaft fixing member is A screw shaft insertion hole, which is positioned in the hollow through hole and accommodates the tip end side of the screw shaft and allows the screw shaft and the pressure shaft to reciprocate relatively, extends from the rear side of the pressure shaft to the axial center. It is formed over the pressure shaft and a nut is disposed on the end side of the pressure shaft so that the nut cannot be rotated with respect to the pressure shaft, and the screw shaft is fixed in the screw shaft fixing member. the space that allows housing the nut screwed with said screw shaft to form a space It is characterized in that the form.
本発明においては、モ―タの回転軸に中空貫通孔を形成し、該モ―タによって駆動され該モ―タの前記中空貫通孔内に引き込まれる部位を有する加圧軸を備えたＣ型溶接ガンにおいて、前記モ―タの回転軸端面に形成したタップ孔にねじ軸固定部材を固定して該ねじ軸固定部材を前記中空貫通孔内に位置させ、ねじ軸の先端側が収納され該ねじ軸と加圧軸とが相対的に往復動可能となるねじ軸挿入孔を前記加圧軸の後部側から軸線方向中心部に亘って加圧軸に対して形成すると共に該加圧軸端側にナットを配置して該ナットを加圧軸に対して回転不能とし、前記ねじ軸固定部材内に、前記ねじ軸を固定する空間を形成すると共に該ねじ軸と螺合する前記ナットを収納可能とする空間を形成したので、駆動装置の短縮化が可能であって、しかもねじ軸固定部材を用いることで回転軸の中空貫通孔内にねじ軸の固定が可能でありナット回転用とモ―タを共用することができて、安全でコスト安で全体としてコンパクトなＣ型溶接ガンの加圧駆動装置となる。
In the present invention, a C-type provided with a pressure shaft having a hollow through hole formed in the rotating shaft of the motor and having a portion driven by the motor and drawn into the hollow through hole of the motor. In the welding gun, the screw shaft fixing member is fixed to a tap hole formed on the end surface of the rotating shaft of the motor so that the screw shaft fixing member is positioned in the hollow through hole, and the tip end side of the screw shaft is accommodated in the screw gun. A screw shaft insertion hole in which the shaft and the pressure shaft can relatively reciprocate is formed from the rear side of the pressure shaft to the center in the axial direction, and the pressure shaft end side. A nut is disposed on the screw shaft so that the nut cannot be rotated with respect to the pressure shaft, and a space for fixing the screw shaft is formed in the screw shaft fixing member, and the nut to be screwed with the screw shaft can be stored. The drive device can be shortened, and By using the same shaft fixing member, it is possible to fix the screw shaft in the hollow through hole of the rotating shaft, and to share the motor with the nut rotating motor, which is safe, low cost and compact as a whole It becomes a pressurization drive device of a welding gun.
モ―タの回転軸に中空貫通孔を形成し、該モ―タによって駆動され該モ―タの前記中空貫通孔内に引き込まれる部位を有する加圧軸を備えたＣ型溶接ガンにおいて、前記モ―タの回転軸端面に形成したタップ孔にねじ軸固定部材を固定して該ねじ軸固定部材を前記中空貫通孔内に位置させ、ねじ軸の先端側が収納され該ねじ軸と加圧軸とが相対的に往復動可能となるねじ軸挿入孔を前記加圧軸の後部側から軸線方向中心部に亘って加圧軸に対して形成すると共に該加圧軸端側にナットを配置して該ナットを加圧軸に対して回転不能とし、前記ねじ軸固定部材内に、前記ねじ軸を固定する空間を形成すると共に該ねじ軸と螺合する前記ナットを収納可能とする空間を形成したＣ型溶接ガンの加圧駆動装置。
A C-type welding gun having a pressure shaft having a hollow through hole formed in a rotating shaft of a motor and having a portion driven by the motor and drawn into the hollow through hole of the motor. A screw shaft fixing member is fixed to a tapped hole formed on the end surface of the rotating shaft of the motor, the screw shaft fixing member is positioned in the hollow through hole, and the tip end side of the screw shaft is accommodated and the screw shaft and the pressure shaft. And a screw shaft insertion hole that can be reciprocally moved relative to the pressure shaft from the rear side of the pressure shaft to the axial center, and a nut is disposed on the pressure shaft end side. The nut cannot be rotated with respect to the pressure shaft, and a space for fixing the screw shaft is formed in the screw shaft fixing member, and a space for accommodating the nut screwed with the screw shaft is formed. Pressurized drive device for C-type welding gun.
図１を参照してこの発明の実施例について説明をする。
図において、１はサ―ボモ―タであり、該サ―ボモ―タ１は、その外殻２に固定された固定子巻線３とその内周に配置された回転子磁極４及び該回転子磁極４が固定された回転軸５とからなり、該回転軸５には中空貫通孔６が形成されている。また、該回転軸５の前端面には複数のタップ孔７が形成されている。なお、タップ孔７は回転軸５の後端面に形成されてもよい。
An embodiment of the present invention will be described with reference to FIG.
In the figure, reference numeral 1 denotes a servo motor. The servo motor 1 includes a stator winding 3 fixed to an outer shell 2 thereof, a rotor magnetic pole 4 arranged on the inner periphery thereof, and the rotation A rotating shaft 5 is fixed to the child magnetic pole 4, and a hollow through hole 6 is formed in the rotating shaft 5. A plurality of tap holes 7 are formed on the front end surface of the rotating shaft 5. The tap hole 7 may be formed on the rear end surface of the rotating shaft 5.
８は加圧軸であり、該加圧軸８の軸線方向中心部には後述するねじ軸の先端側が収納される孔９が形成されていると共に、加圧軸８の後端側にはナット１０が固着して配置されて該ナット１０は加圧軸８に対して回転不能とされており、該加圧軸８の前端側にはチップホルダ―１１を介して電極１２が取り付けられている。 Reference numeral 8 denotes a pressure shaft, and a hole 9 is formed in the central portion of the pressure shaft 8 in the axial direction to accommodate a distal end side of a screw shaft, which will be described later. 10 is fixedly disposed and the nut 10 cannot be rotated with respect to the pressure shaft 8, and an electrode 12 is attached to the front end side of the pressure shaft 8 via a tip holder 11. .
１３はねじ軸固定部材であり、該ねじ軸固定部材１３は、前記ナット１０を収納可能とするような大径部１４と後述するねじ軸を固定する小径部１５とからなる中空管体から構成され、大径部１４の端部には前記回転軸５の端面に形成されている前記タップ孔７と合致する孔を有するフランジ１６が形成されている。そして、このねじ軸固定部材１３は前記中空貫通孔６内に固定して位置されるようになっている。 Reference numeral 13 denotes a screw shaft fixing member. The screw shaft fixing member 13 is a hollow tube body including a large-diameter portion 14 that can accommodate the nut 10 and a small-diameter portion 15 that fixes a screw shaft described later. A flange 16 having a hole that matches the tap hole 7 formed on the end surface of the rotating shaft 5 is formed at the end of the large-diameter portion 14. The screw shaft fixing member 13 is fixedly positioned in the hollow through hole 6.
１７はねじ軸であり、該ねじ軸１７はねじ軸固定部材１３の小径部１５内にクサビによる固着手段１８によって固定されており、該ねじ軸１７に螺設されたねじ１９が前記ナット１０と螺合するようになっている。 Reference numeral 17 denotes a screw shaft. The screw shaft 17 is fixed in the small diameter portion 15 of the screw shaft fixing member 13 by fixing means 18 using wedges, and a screw 19 screwed on the screw shaft 17 is connected to the nut 10. It is designed to be screwed together.
２０はガンブラケットであり、該ガンブラケット２０は前記モ―タ１の前面に固定されており、該ガンブラケット２０には固定ア―ム２１が固定されていると共にその軸線方向中心部には前記加圧軸８を挿通する孔２２が形成され、該孔２２の先端側には直動軸受２３が固定されている。なお、２４は前記固定ア―ム２１に載置されている溶接用トランスである。 Reference numeral 20 denotes a gun bracket. The gun bracket 20 is fixed to the front surface of the motor 1. A fixed arm 21 is fixed to the gun bracket 20 and the axial center portion thereof A hole 22 through which the pressure shaft 8 is inserted is formed, and a linear motion bearing 23 is fixed to the tip side of the hole 22. Reference numeral 24 denotes a welding transformer mounted on the fixed arm 21.
そして、Ｃ型溶接ガンは、図１の状態からサ―ボモ―タ１を駆動すると、サ―ボモ―タ１の回転軸５の回転により中空貫通孔６内に固定されたねじ軸固定部材１３を介してねじ軸１７が回転する。このねじ軸１７の回転によりねじ１９と螺合するナット１０はねじ軸１７に沿って加圧軸８を伴って前進し、該加圧軸８の前進により電極１２は他方の電極２５に接近し、両電極１２，２５間にワ―ク（図示せず）を挟持した状態で溶接作業が行われる。 When the servo motor 1 is driven from the state shown in FIG. 1, the C-type welding gun is fixed to the screw shaft fixing member 13 fixed in the hollow through hole 6 by the rotation of the rotating shaft 5 of the servo motor 1. Through which the screw shaft 17 rotates. As the screw shaft 17 rotates, the nut 10 screwed with the screw 19 advances along the screw shaft 17 with the pressure shaft 8, and the electrode 12 approaches the other electrode 25 by the advance of the pressure shaft 8. The welding operation is performed with a work (not shown) sandwiched between the electrodes 12 and 25.
上記のようなＣ型溶接ガンの加圧駆動装置において、ねじ軸固定部材１３を用い該ねじ軸固定部材１３を回転軸５の端面に形成されたタップ孔７に簡単に固定することにより、従来例のような回転軸の端面にナットを固定するようにしたナット回転用のモ―タを本発明のようなねじ軸回転用のモ―タに、回転軸に特殊加工を施すことなく簡単に適用することができ、駆動装置の短縮化が可能であって、しかも、ねじ軸固定部材１３の取付精度は回転軸の端面であることから十分に期待することができるものであり、駆動装置の製作コストが易く、安全で全体としてコンパクトなＣ型溶接ガンの加圧駆動装置となる。 In the pressure drive device for the C-type welding gun as described above, the screw shaft fixing member 13 is used to easily fix the screw shaft fixing member 13 to the tap hole 7 formed on the end surface of the rotary shaft 5. The nut rotation motor with nuts fixed to the end face of the rotation shaft as in the example can be easily changed to the screw shaft rotation motor as in the present invention without special processing of the rotation shaft. The driving device can be shortened, and the mounting accuracy of the screw shaft fixing member 13 can be sufficiently expected from the end surface of the rotating shaft. The pressure driving device of the C-type welding gun is easy to manufacture, safe and compact as a whole.
１ モ―タ
５ 回転軸
６ 中空貫通孔
７ タップ孔
８ 加圧軸
９ 孔
１０ ナット
１３ ねじ軸固定部材
１４ ナット
１７ ねじ軸
１８ 固着手段
１９ ねじ
DESCRIPTION OF SYMBOLS 1 Motor 5 Rotating shaft 6 Hollow through-hole 7 Tap hole 8 Pressure shaft 9 Hole 10 Nut 13 Screw shaft fixing member 14 Nut 17 Screw shaft 18 Fixing means 19 Screw
Claims (1)
A C-type welding gun having a pressure shaft having a hollow through hole formed in a rotating shaft of a motor and having a portion driven by the motor and drawn into the hollow through hole of the motor. A screw shaft fixing member is fixed to a tapped hole formed on the end surface of the rotating shaft of the motor, the screw shaft fixing member is positioned in the hollow through hole, and the tip end side of the screw shaft is accommodated and the screw shaft and the pressure shaft. And a screw shaft insertion hole that can be reciprocally moved relative to the pressure shaft from the rear side of the pressure shaft to the axial center, and a nut is disposed on the pressure shaft end side. The nut cannot be rotated with respect to the pressure shaft, and a space for fixing the screw shaft is formed in the screw shaft fixing member, and a space for accommodating the nut screwed with the screw shaft is formed. A pressurizing drive device for a C-type welding gun, characterized by
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006171223A JP5221009B2 (en) | 2006-06-21 | 2006-06-21 | C type welding gun pressure drive device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006171223A JP5221009B2 (en) | 2006-06-21 | 2006-06-21 | C type welding gun pressure drive device |
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| Publication Number | Publication Date |
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| JP2008000773A JP2008000773A (en) | 2008-01-10 |
| JP5221009B2 true JP5221009B2 (en) | 2013-06-26 |
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| JP2006171223A Active JP5221009B2 (en) | 2006-06-21 | 2006-06-21 | C type welding gun pressure drive device |
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| JP2019082202A (en) * | 2017-10-30 | 2019-05-30 | 株式会社ハイレックスコーポレーション | Driving device and parking brake device having driving device |
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| JPS5165305A (en) * | 1974-12-02 | 1976-06-05 | Hitachi Ltd | CHOKUSENUNDOGATADENDOKI |
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| JP2005319471A (en) * | 2004-05-06 | 2005-11-17 | Obara Corp | C-type spot-welding gun structure |
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