POSITIONING APPARATUS AND WELDING EQUIPMENT

1 . A positioning apparatus, comprising a first positioning mechanism, wherein the first positioning mechanism comprises: a first fixed seat, a first driving piece, a first transmission piece, a second transmission piece, and a first abutment piece;

the first driving piece is disposed on the first fixed seat, and the first driving piece is connected to the second transmission piece through the first transmission piece to drive the second transmission piece to move;

a limiting portion is disposed on the first transmission piece, the limiting portion is connected to the second transmission piece, and is configured to limit a stroke of the second transmission piece; and

the second transmission piece is connected to the first abutment piece, and is configured to drive the first abutment piece to move to position an object-to-be-positioned.

2 . The positioning apparatus according to claim 1 , wherein the first transmission piece is slidably connected to the first fixed seat along a first direction, the second transmission piece is slidably connected to the first fixed seat along a second direction, and the first direction is at an angle to the second direction; and

the limiting portion is a slide slot disposed on the first transmission piece, a connecting piece is disposed on the second transmission piece, the connecting piece is slidably disposed in the slide slot, and the connecting piece abuts on an inner wall of the slide slot to limit the stroke of the second transmission piece.

3 . The positioning apparatus according to claim 2 , wherein the first abutment piece is fixedly connected to the second transmission piece, and the first abutment piece is slidably connected to the first fixed seat along the second direction so that the second transmission piece and the first fixed seat are slidably connected to each other.

4 . The positioning apparatus according to claim 2 , wherein the first direction is perpendicular to the second direction, the slide slot is disposed slantingly so that when the first transmission piece slides, an inner wall of the slide slot pushes the connecting piece to drive the second transmission piece to slide.

5 . The positioning apparatus according to claim 2 , wherein the slide slot runs through the first transmission piece to form a slide hole, and the connecting piece runs through the slide hole.

6 . The positioning apparatus according to claim 2 , wherein the connecting piece is rotatably disposed on the second transmission piece.

7 . The positioning apparatus according to claim 1 , further comprising a second positioning mechanism, wherein the second positioning mechanism comprises: a second fixed seat, a second driving piece, and a second abutment piece;

the second fixed seat is disposed on a side of the first fixed seat, the side being oriented toward a movement direction of the first abutment piece; and

the second driving piece is disposed on the second fixed seat, connected to the second abutment piece, and configured to drive the second abutment piece to move along a direction at an angle to the movement direction of the first abutment piece, so as to position the object-to-be-positioned.

8 . The positioning apparatus according to claim 7 , wherein the positioning apparatus further comprises a ranging mechanism, and the ranging mechanism is disposed on at least one of the first fixed seat or the second fixed seat and configured to detect a movement distance of the object-to-be-positioned.

9 . The positioning apparatus according to claim 8 , wherein the ranging mechanism comprises a laser rangefinder, the laser rangefinder is disposed on a side of the second fixed seat, the side is oriented toward the second abutment piece, an avoidance hole is created on the second abutment piece at a position opposite to the laser rangefinder, and the avoidance hole is configured to transmit a laser beam emitted by the laser rangefinder to the object-to-be-positioned.

10 . A piece of welding equipment, comprising the positioning apparatus according to claim 1 .

11 . The welding equipment according to claim 10 , further comprising a carrier and a welding apparatus;

the carrier is configured to carry a battery module;

the positioning apparatus is disposed on at least two sides of the carrier and configured to position the object-to-be-positioned; and

the welding apparatus is disposed in alignment with the carrier and configured to weld the object-to-be-positioned.

12 . The welding equipment according to claim 11 , wherein the object-to-be-positioned is an end plate of the battery module.