CN210451371U

CN210451371U - Tool for preventing stator core fin laser welding

Info

Publication number: CN210451371U
Application number: CN201920860887.XU
Authority: CN
Inventors: 王国红; 杨军; 赵森
Original assignee: JINGJIN BAISITE ELECTRIC (SHANGHAI) CO Ltd
Current assignee: JINGJIN BAISITE ELECTRIC (SHANGHAI) CO Ltd
Priority date: 2019-06-10
Filing date: 2019-06-10
Publication date: 2020-05-05
Anticipated expiration: 2029-06-10

Abstract

The utility model relates to the technical field of machinery, specifically speaking is a frock for preventing stator core fin laser welding, including welding distance adjustment mechanism, welding positioning mechanism, compared with the prior art, the utility model, through servo motor drive lead screw, realize the regulation of distance around the frock, through electric jar and electric rotating platform, realize the regulation of distance and rotation angle from top to bottom of the frock to make any position of stator core surface can all weld, improve the flexibility of welding; adopt stator core anchor clamps and rotatory air cylinder that pushes down to compress tightly stator core, improve welded stability to effectively prevent the stator core fin. The utility model discloses only need change stator core anchor clamps, can adapt to different overall dimension's stator core.

Description

Tool for preventing stator core fin laser welding

Technical Field

The utility model belongs to the technical field of the mechanical skill and specifically relates to a frock for preventing stator core fin laser welding.

Background

In the manufacturing production of the motor, the stator core is stamped and laminated by steel sheets. There is a serious problem of fin in the subsequent process assembly production. And the problem of the warping of the stator core can be effectively solved by adding a process of laser welding the outer surface of the stator core.

The laser focusing objective lens of the laser welding machine has a fixed working distance, namely, the laser head of the laser welding machine and the position of a welding object need to keep a fixed distance, so that the welding can be effectively carried out, and the welding firmness is ensured. In order to effectively prevent the warping of the stator core, a plurality of vertical welding seams are required to be welded at different positions of the outer surface of the stator core.

Therefore, need to design a frock that can adjust interval between laser head and the stator core to in going on of laser welding effectively prevents the stator core fin.

Disclosure of Invention

The utility model aims at overcoming the not enough of prior art, provide a can adjust the frock of interval between laser head and the stator core to in going on of laser welding, effectively prevent the stator core fin.

In order to achieve the above object, the utility model relates to a frock for preventing stator core fin laser welding, including welding distance adjustment mechanism, welding position mechanism, its characterized in that: the welding positioning mechanism is fixed at the top of the welding distance adjusting mechanism, the welding distance adjusting mechanism comprises a lower base plate, a sliding plate, a servo motor, a screw rod, a first bearing seat, a second bearing seat, a screw nut seat, a nut, a sliding block and a linear sliding rail, the servo motor is installed in the center of the rear side of the lower base plate, the servo motor is connected with the rear end of the screw rod, the rear portion of the screw rod is connected with the second bearing seat, the front end of the screw rod is connected with the first bearing seat, the second bearing seat and the first bearing seat are fixed on the lower base plate, the two nuts are installed on one side, close to the servo motor, of the screw rod, the screw nut is sleeved on the outer side of the middle portion of the screw rod and connected with the screw nut seat, the screw nut seat is fixed at the bottom of the sliding plate, the linear sliding; welding position mechanism includes the frame, the electric jar, the guiding axle, linear bearing, the connecting plate, electronic revolving stage, stator core anchor clamps, rotatory air cylinder that pushes down, rack-mount is on the slide, install the electric jar in the frame, the axle and the connecting plate of electric jar are connected, two linear bearing install in the frame, two linear bearing are located the left and right sides of electric jar, the lower extreme of guiding axle inserts in the linear bearing, the upper end and the connecting plate of guiding axle are connected, electronic revolving stage installs on the connecting plate, stator core anchor clamps install on electronic revolving stage, rotatory air cylinder that pushes down is installed on the connecting plate, rotatory air cylinder that pushes down is located electronic revolving stage's rear side.

The servo motor is fixed on the servo motor mounting seat, the servo motor mounting seat is fixed with the lower bottom plate through the side plates, and the servo motor is connected with the lead screw through the coupler.

Two angular contact bearings and a bushing are arranged in the second bearing seat, the two angular contact bearings are sleeved on the screw rod, the bushing is arranged between the angular contact bearings and the second bearing seat, and bearing seat end covers with holes are arranged at the front end and the rear end of the second bearing seat.

The first bearing seat is internally provided with a first deep groove ball bearing, the first deep groove ball bearing is sleeved on the screw rod, the rear end of the first bearing seat is provided with a bearing seat end cover with a hole, and the front end of the first bearing seat is provided with a bearing seat closed end cover.

And a second deep groove ball bearing is arranged in the screw seat, and the second deep groove ball bearing is sleeved on the screw.

The lower bottom plate is connected with the linear slide rail through a support bar.

The electric cylinder is connected with the connecting plate through an electric cylinder connecting flange, and the guide shaft is connected with the connecting plate through a guide shaft connecting flange.

Compared with the prior art, the utility model, through servo motor drive lead screw, realize the regulation of distance around the frock, through electric jar and electric rotary table, realize the regulation of distance and rotation angle about the frock to make any position of stator core surface can weld, improve the flexibility of welding; adopt stator core anchor clamps and rotatory air cylinder that pushes down to compress tightly stator core, improve welded stability to effectively prevent the stator core fin. The utility model discloses only need change stator core anchor clamps, can adapt to different overall dimension's stator core.

Drawings

Fig. 1 is a three-dimensional perspective view of the present invention.

Fig. 2 is a front view of the present invention.

Fig. 3 is a top cross-sectional view of the present invention.

Detailed Description

The invention will now be further described with reference to the accompanying drawings.

Referring to fig. 1, the utility model relates to a frock for preventing stator core fin laser welding, including welding distance adjustment mechanism, welding position mechanism fixes at welding distance adjustment mechanism's top, and welding distance adjustment mechanism drive welding position mechanism back-and-forth movement, welding position mechanism drive stator core reciprocate and 360 rotatory.

Referring to fig. 1 and 3, the welding distance adjusting mechanism includes a lower base plate 101, a sliding plate 104, a servo motor 120, a lead screw 118, a first bearing seat 107, a second bearing seat 126, a nut 128, a nut seat 129, a nut 116, a sliding block 110 and a linear sliding rail 110, wherein the servo motor 120 is installed at the center of the rear side of the lower base plate 101, the servo motor 120 is connected with the rear end of the lead screw 118, the rear portion of the lead screw 118 is connected with the second bearing seat 126, the front end of the lead screw 118 is connected with the first bearing seat 107, the second bearing seat 126 and the first bearing seat 107 are fixed on the lower base plate 101, the two nuts 116 are installed at one side of the lead screw 118 close to the servo motor 120, the nut 128 is sleeved on the outer side of the middle portion of the lead screw 118, the nut 128 is connected with the nut seat 129, the nut seat 129 is fixed at the bottom of the sliding plate 104, the linear sliding block 110 is installed, the sliding plate 104 is fixed with a welding positioning mechanism. The sliding block 114 and the linear slide rail 110 play a guiding role, and the servo motor 120 rotates to drive the welding positioning mechanism to move back and forth by driving the screw rod 118 and the screw nut 128.

The servo motor 120 is fixed on a servo motor mounting seat 121, the servo motor mounting seat 121 is fixed with the lower base plate 101 through a side plate 117, and the servo motor 120 is connected with the screw rod 118 through a coupling 119. Two angular contact bearings 124 and a bushing 115 are arranged in the second bearing seat 126, the two angular contact bearings 124 are sleeved on the screw rod 118, the bushing 115 is arranged between the angular contact bearings 124 and the second bearing seat 126, and the front end and the rear end of the second bearing seat 126 are provided with bearing seat end covers 112 with holes. The first bearing seat 107 is internally provided with a first deep groove ball bearing 131, the first deep groove ball bearing 131 is sleeved on the screw rod 118, the rear end of the first bearing seat 107 is provided with a bearing seat end cover 112 with a hole, and the front end of the first bearing seat 107 is provided with a bearing seat closed end cover 108. The screw seat 129 is internally provided with a second deep groove ball bearing, and the second deep groove ball bearing is sleeved on the screw 128. The lower base plate 101 is connected with the linear slide rail 110 by a support bar 102.

Referring to fig. 1 and 2, the welding positioning mechanism includes a frame 201, an electric cylinder 210, a guide shaft 203, a linear bearing 202, a connecting plate 207, an electric rotating table 204, a stator core fixture 205, and a rotary pushing cylinder 206, wherein the frame 201 is mounted on the sliding plate 104, the electric cylinder 210 is mounted on the frame 201, a shaft of the electric cylinder 210 is connected to the connecting plate 207, the two linear bearings 202 are mounted on the frame 201, the two linear bearings 202 are located on the left and right sides of the electric cylinder 210, the lower end of the guide shaft 203 is inserted into the linear bearing 202, the upper end of the guide shaft 203 is connected to the connecting plate 207, the electric rotating table 204 is mounted on the connecting plate 207, the stator core fixture 205 is mounted on the electric rotating table 204, the rotary pushing cylinder 206 is mounted on the connecting plate 207, and the rotary pushing cylinder 206. The stator core is clamped by a stator core clamp 205, a rotary pressing cylinder 206 compresses or loosens the stator core through the expansion of a cylinder rod, and a laser welding machine is assisted to weld the stator core.

The electric cylinder 210 is connected with the connecting plate 207 by an electric cylinder connecting flange 212, and the guide shaft 203 is connected with the connecting plate 207 by a guide shaft connecting flange 211.

The utility model discloses at the during operation, settle in the mechanism center and face the position of laser-beam welding machine laser head, stator core settles on stator core anchor clamps 205. According to the front-back movement direction and distance, the servo motor 120 is controlled to rotate, the main shaft of the servo motor 120 drives the coupler 119 to rotate, the coupler 119 drives the screw nut 128 on the screw rod 118 to rotate, and the screw nut 128 drives the sliding plate 104 to slide back and forth along the direction of the linear sliding rail 110 through the screw nut seat 129, so that the outer surface of the stator core and the center of the laser head keep a proper horizontal distance. The electric rotating platform 204 is started to drive the stator core to rotate for 360 degrees, so that the position where the stator core needs to be welded is just opposite to the center of the laser head, the electric cylinder 210 is started, the shaft of the electric cylinder 210 is pushed out or retracted, the driving connecting plate 207 drives the stator core to move up and down, and the stator core reaches the designated position in the vertical direction. The cylinder rod of the rotary pressing cylinder 206 retracts to compress the stator core, welding is started, the stator core continues to move in the vertical direction, a vertical welding seam is welded on the outer surface of the stator core, after welding at the position is completed, the laser head stops welding, the shaft of the electric cylinder 210 stops moving, the cylinder rod of the rotary pressing cylinder 206 extends out to loosen the stator core, the electric rotating table 204 drives the stator core to rotate to the next designated position, the cylinder rod of the rotary pressing cylinder 206 retracts to compress the stator core, the shaft of the electric cylinder 210 starts moving, and the laser head continues to weld the next vertical welding seam. Repeating the above actions until welding seams at all positions are welded, completely stopping welding by the laser head, retracting the shaft of the electric cylinder 210 to the original point, rotating the electric rotating table 204 to the zero point, and completing welding of the stator core.

The utility model discloses a servo motor 120 drives lead screw 118, screw 128, realizes the regulation of frock fore-and-aft distance, through electric jar 210 and electric rotary table 204, realizes the regulation of frock vertical distance and rotation angle to make stator core surface's any position all can weld, improve the flexibility of welding; adopt stator core anchor clamps 205 and rotatory air cylinder 206 that pushes down to compress tightly stator core, improve welded stability to effectively prevent the stator core fin. The utility model discloses only need change stator core anchor clamps 205, can adapt to different overall dimension's stator core.

Claims

1. The utility model provides a frock for preventing stator core fin laser welding, includes welding distance adjustment mechanism, welding position mechanism, its characterized in that: the welding positioning mechanism is fixed at the top of the welding distance adjusting mechanism, the welding distance adjusting mechanism comprises a lower base plate (101), a sliding plate (104), a servo motor (120), a screw rod (118), a first bearing seat (107), a second bearing seat (126), a nut (128), a nut seat (129), a nut (116), a sliding block (114) and a linear sliding rail (110), the servo motor (120) is installed in the center of the rear side of the lower base plate (101), the servo motor (120) is connected with the rear end of the screw rod (118), the rear portion of the screw rod (118) is connected with the second bearing seat (126), the front end of the screw rod (118) is connected with the first bearing seat (107), the second bearing seat (126) and the first bearing seat (107) are fixed on the lower base plate (101), the two nuts (116) are installed on one side of the screw rod (118) close to the servo motor (120), the nut (128) is sleeved on, the screw (128) is connected with the screw seat (129), the screw seat (129) is fixed at the bottom of the sliding plate (104), the left side and the right side of the lower bottom plate (101) are respectively provided with a linear sliding rail (110), the linear sliding rail (110) is provided with a sliding block (114), the top of the sliding block (114) is connected with the sliding plate (104), and the sliding plate (104) is fixedly provided with a welding positioning mechanism; the welding positioning mechanism comprises a rack (201), an electric cylinder (210), a guide shaft (203), linear bearings (202), a connecting plate (207), an electric rotating platform (204), a stator core fixture (205) and a rotary pressing cylinder (206), wherein the rack (201) is arranged on a sliding plate (104), the electric cylinder (210) is arranged on the rack (201), the shaft of the electric cylinder (210) is connected with the connecting plate (207), the two linear bearings (202) are arranged on the rack (201), the two linear bearings (202) are positioned at the left side and the right side of the electric cylinder (210), the lower end of the guide shaft (203) is inserted into the linear bearings (202), the upper end of the guide shaft (203) is connected with the connecting plate (207), the electric rotating platform (204) is arranged on the connecting plate (207), the stator core fixture (205) is arranged on the electric rotating platform (204), the rotary pressing cylinder (206) is arranged on the connecting plate (207), the rotary pressing cylinder (206) is positioned at the rear side of the electric rotating table (204).

2. The tool for preventing the stator core from warping laser welding according to claim 1, wherein: the servo motor (120) is fixed on a servo motor mounting seat (121), the servo motor mounting seat (121) is fixed with the lower bottom plate (101) through a side plate (117), and the servo motor (120) is connected with the screw rod (118) through a coupler (119).

3. The tool for preventing the stator core from warping laser welding according to claim 1, wherein: two angular contact bearings (124) and a bushing (115) are arranged in the second bearing seat (126), the two angular contact bearings (124) are sleeved on the screw rod (118), the bushing (115) is arranged between the angular contact bearings (124) and the second bearing seat (126), and the front end and the rear end of the second bearing seat (126) are provided with bearing seat end covers (112) with holes.

4. The tool for preventing the stator core from warping laser welding according to claim 1, wherein: the screw rod (118) is sleeved with the first deep groove ball bearing (131) in the first bearing seat (107), the rear end of the first bearing seat (107) is provided with a bearing seat end cover (112) with a hole, and the front end of the first bearing seat (107) is provided with a bearing seat closed end cover (108).

5. The tool for preventing the stator core from warping laser welding according to claim 1, wherein: and a second deep groove ball bearing is arranged in the nut seat (129), and the second deep groove ball bearing is arranged on the nut (128).

6. The tool for preventing the stator core from warping laser welding according to claim 1, wherein: the lower bottom plate (101) is connected with the linear slide rail (110) through a support strip (102).

7. The tool for preventing the stator core from warping laser welding according to claim 1, wherein: the electric cylinder (210) is connected with the connecting plate (207) through an electric cylinder connecting flange (212), and the guide shaft (203) is connected with the connecting plate (207) through a guide shaft connecting flange (211).