CN218836435U

CN218836435U - Automatic spot welding device for stator

Info

Publication number: CN218836435U
Application number: CN202222963300.2U
Authority: CN
Inventors: 唐坤; 李苗; 周龙; 林金鹤; 黄晓明; 吴礼达; 李在亦
Original assignee: Ruian Hantian Automobile Industry Co ltd
Current assignee: Ruian Hantian Automobile Industry Co ltd
Priority date: 2022-11-03
Filing date: 2022-11-03
Publication date: 2023-04-11
Anticipated expiration: 2032-11-03

Abstract

The utility model relates to a spot welding equipment technical field, in particular to automatic spot welding device of stator, including the frame, be equipped with the work platform that is used for the operation in the frame, work platform puts on the shelf and can follow vertical direction and be reciprocating motion's spot welding head, and spot welding head below is equipped with the locating component of fixed work piece, is equipped with drive locating component on the work platform and removes, rotatory drive assembly, and the spot welding station is switched through rotatory, removal to the locating component, the beneficial effects of the utility model are that: realize the full-automatic spot welding of stator, improve stator coil's spot welding quality and efficiency.

Description

Automatic spot welding device for stator

Technical Field

The utility model relates to a spot welding equipment technical field, concretely relates to automatic spot welding device of stator.

Background

The winding has the coil on the stator of motor, need adopt spot welding to fix the coil in the stator, and coil welding quality influences the performance of motor, and traditional stator coil leans on artifical completion spot welding, and rosin joint, desoldering, dislocation welding etc. lead to product performance to reduce in the welding process, need a spot welding equipment that degree of automation is high, improve production efficiency and welding quality.

Disclosure of Invention

The utility model aims to solve the technical problem that to the not enough of above-mentioned prior art, provide a stator automatic spot welding device, realize the full-automatic spot welding of stator, improve stator coil's spot welding quality and efficiency.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a stator automatic spot welding device which characterized in that: the spot welding machine comprises a frame, be equipped with the work platform who is used for the operation in the frame, the work platform upper rack is equipped with can follow vertical direction and is reciprocating motion's spot welding head, the spot welding head below is equipped with the locating component of fixed work piece, the last drive assembly who drives locating component removal, rotation that is equipped with of work platform, locating component is through rotatory, removal switching spot welding station.

The utility model has the characteristics as above: the positioning assembly arranged on the working platform is used for fixing a workpiece to be processed, stations needing spot welding on the workpiece are distributed in an annular mode, the positioning assembly can move back and forth and rotate to switch different stations on the workpiece under the driving of the driving assembly, and under the condition that the position of a spot welding head is unchanged, spot welding of all stations on the workpiece is completed, so that spot welding equipment with high automation degree is provided, and the spot welding quality and efficiency of a stator coil are improved.

The utility model discloses further setting is: the positioning assembly comprises a base, a positioning seat and a rotating shaft, the positioning seat is located on the upper end face of the base, the rotating shaft is arranged at the center of the base, the driving assembly comprises a sliding rail assembly and a motor assembly, the sliding rail assembly drives the positioning seat to rotate, the base is fixedly connected with the sliding rail assembly, one end of the rotating shaft is linked with the motor assembly, the other end of the rotating shaft is fixedly connected with the positioning seat, the positioning seat is circular, a circular placing groove is formed in the positioning seat, a step for placing a stator core is formed in the groove wall, a vertically placed positioning pin is inserted into the step, and the positioning pin is matched with a groove formed in the stator core.

The utility model has the characteristics as above: the positioning component moves back and forth on the working platform along with the sliding rail component and rotates around a shaft on the working platform along with the motor component; the positioning seat is round, and the round placing grooves are arranged in the positioning seat and are matched with the stator in shape, so that the matching degree of the stator and the positioning seat is improved; through set up the step in circular standing groove, place stator core's terminal surface on the step while cell wall restriction stator core global, the cooperation locating pin prevents its rotation in the positioning seat with the stator fixing, this positioning seat simple structure, and positioning effect is good.

The utility model discloses further setting is: the upper end face of the base is provided with an annular groove, and a plurality of steel balls for supporting and positioning the seat are embedded in the annular groove.

The utility model has the characteristics as above: the steel balls for supporting the positioning seats are arranged between the base and the positioning seats, so that the pressure on the positioning seats when the spot welding head is pressed downwards is reduced, the rotation flexibility of the positioning seats is improved, and the friction force during rotation is reduced.

The utility model discloses further setting is: the sliding rail assembly comprises a sliding rail arranged on the upper end face of the working platform, a sliding block matched with the sliding rail and a moving plate fixedly connected with the sliding block, the base is fixedly connected with the moving plate, a first servo motor and a lead screw connected with the first servo motor are arranged on the lower end face of the working platform, a lead screw supporting seat is arranged at each of two ends of the lead screw, a ball screw nut is arranged on the lead screw in a penetrating mode, a nut seat connected with the moving plate is sleeved on the ball screw nut, and a sliding groove for the nut seat to penetrate through is formed in the working platform.

The utility model has the characteristics as above: the first servo motor, the lead screw and the lead screw supporting seat are arranged on the lower end face of the working platform, the slide rail and the movable plate are arranged on the upper end face of the working platform and are connected through the sliding groove, and the rack structure is utilized to the maximum extent, so that the equipment structure is compact.

The utility model discloses further setting is: the motor assembly comprises a second servo motor and a first synchronizing wheel arranged on the rotating shaft in a sleeved mode, the second synchronizing wheel is arranged on the second servo motor and is linked with the second synchronizing wheel through a belt, a mounting groove for the second servo motor to hang is formed in the working platform, and the second servo motor is fixedly mounted on one side of the sliding rail assembly.

The utility model has the characteristics as above: the second servo motor is arranged to drive the rotating shaft to rotate, and the positioning seat fixedly connected with the rotating shaft rotates along with the rotating shaft; the mounting groove for the second servo motor to be suspended is arranged on the working platform, so that the second servo motor can move along with the sliding rail assembly conveniently.

The utility model discloses further setting is: the spot welding head comprises a cylinder and a cylinder connecting plate linked with the cylinder, wherein a copper electrode base plate, an insulating base plate, a tungsten rod mounting plate and a lower copper electrode fixing plate are sequentially arranged on one end face of the cylinder connecting plate, facing the working platform, at least one insulating gasket is arranged between the tungsten rod mounting plate and the lower copper electrode fixing plate, guide pillars are arranged at two ends of the lower copper electrode fixing plate, one end of each guide pillar is located in the cylinder connecting plate and can move axially, a spring is sleeved on each guide pillar, a lower copper electrode connecting plate is embedded in the lower copper electrode fixing plate, an anode working rod and a cathode working rod are arranged in the lower copper electrode connecting plate side by side, one ends of the anode working rod and the cathode working rod are located below the lower copper electrode connecting plate, one end of the cathode working rod abuts against the lower copper electrode fixing plate, and one end of the anode working rod sequentially penetrates through the lower copper electrode fixing plate and the tungsten rod mounting plate.

The utility model has the characteristics as above: lower copper pole fixed plate hangs in tungsten stick mounting panel below under the effect of guide pillar, and during spot welding, negative pole work stick earlier with the work piece contact under the drive of cylinder, along with the continuation work of cylinder, the spring on the compression guide pillar of cylinder connecting plate makes positive pole work stick push down to the spot welding station and carries out spot welding, and this spot welding head combines anodal and negative pole together, is different from traditional negative pole, anodal components of a whole that can function independently setting, simplifies spot welding head structure.

The utility model discloses further setting is: the output of cylinder is equipped with the connecting rod of can dismantling the connection with the cylinder connecting plate, be equipped with on the cylinder connecting plate and hang the seat, hang the inslot that is equipped with the connecting rod joint in the seat, hang groove one end opening and supply the connecting rod to get into.

The utility model has the characteristics as above: through set up on the cylinder connecting plate and hang the seat, the joint can be dismantled with hanging the groove to the connecting rod, and convenient to detach changes the spot welding head.

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is an exploded view of the positioning assembly and the driving assembly according to the embodiment of the present invention.

Fig. 3 is a schematic structural view of a spot welding head according to an embodiment of the present invention.

Detailed Description

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

The automatic stator spot welding device shown in fig. 1-3 comprises a frame 1, wherein a working platform 11 for operation is arranged in the frame 1, a spot welding head 2 capable of reciprocating along the vertical direction is erected on the working platform 11, a positioning component 3 for fixing a workpiece is arranged below the spot welding head 2, a driving component for driving the positioning component 3 to move and rotate is arranged on the working platform 11, and the positioning component 3 switches a spot welding station through rotation and movement.

The positioning assembly 3 comprises a base 31, a positioning seat 32 positioned on the upper end face of the base 31 and a rotating shaft 33 arranged at the center of the base 31, one end of the rotating shaft 33 is fixedly connected with the positioning seat, the other end of the rotating shaft is linked with a motor assembly in the driving assembly, the positioning seat 32 is circular, a circular placing groove 321 is arranged in the positioning seat, a step 322 for placing a stator core is arranged on the groove wall of the circular placing groove 321, a vertically placed positioning pin 34 is inserted on the step 322, the positioning pin 34 is matched with a groove arranged on the stator core, a workpiece to be processed is placed in the circular placing groove of the positioning seat, the stator core is placed on the step, the positioning pin is embedded into the groove on the stator core, and the step, the groove wall of the circular placing groove and the positioning pin are matched to limit the position of the stator; the upper end face of the base 31 is provided with an annular groove 311, and a plurality of steel balls 35 for supporting the positioning seat 32 are embedded in the annular groove 311, so that the pressure on the positioning seat when the spot welding head is pressed down is reduced, the rotation flexibility of the positioning seat is improved, and the friction force during rotation is reduced.

The driving assembly comprises a slide rail assembly 4 and a motor assembly 5, the slide rail assembly 4 comprises a slide rail 41 arranged on the upper end surface of the working platform 11, a slide block 42 matched with the slide rail 41 and a moving plate 43 fixedly connected with the slide block, the moving plate 43 is fixedly connected with the base 31, a first servo motor 44 and a lead screw 45 connected with a first servo 44 motor are arranged on the lower end surface of the working platform 11, lead screw supporting seats 46 are arranged at two ends of the lead screw 45, a ball screw nut 47 penetrates through the lead screw 45, a nut seat 48 connected with the moving plate 43 is sleeved on the ball screw nut 47, and a sliding groove 111 for the nut seat 48 to pass through is arranged on the working platform 11; the motor assembly 5 comprises a second servo motor 51 and a first synchronizing wheel 52 sleeved on the rotating shaft 33, a second synchronizing wheel 53 is arranged on the second servo motor 51, the first synchronizing wheel 53 is linked with the second synchronizing wheel 52 through a belt 54, a mounting groove 112 for hanging the second servo motor 51 is formed in the working platform 11, and the second servo motor 51 is fixedly mounted on one side of the sliding rail assembly 4.

The spot welding head 2 comprises a cylinder 21 and a cylinder connecting plate 22 linked with the cylinder 21, wherein one end face, facing a working platform, of the cylinder connecting plate 22 is sequentially provided with a copper electrode backing plate 23, an insulating backing plate 24, a tungsten electrode mounting plate 25 and a lower copper electrode fixing plate 26, at least one insulating gasket 27 is arranged between the tungsten electrode mounting plate 25 and the lower copper electrode fixing plate 26, two ends of the lower copper electrode fixing plate are provided with guide pillars 28, one ends of the guide pillars 28 are located in the cylinder connecting plate 22 and can move axially, springs 202 are sleeved on the guide pillars 28, a lower copper electrode connecting plate 29 is embedded in the lower copper electrode fixing plate 26, an anode working rod 20 and a cathode working rod 201 are arranged in the lower copper electrode connecting plate 29 side by side, one ends of the anode working rod 20 and the cathode working rod 201 are located below the lower copper electrode connecting plate, one end of the cathode working rod abuts against the lower copper electrode fixing plate, and one end of the anode working rod sequentially penetrates through the lower copper electrode fixing plate and the tungsten electrode mounting plate; the output of cylinder 21 is equipped with can dismantle the connecting rod 203 of being connected with cylinder connecting plate 22, is equipped with on the cylinder connecting plate to hang a seat 204, hangs the inslot 2041 that is equipped with in the seat and connects with the connecting rod, hangs groove one end opening and supplies the connecting rod to get into, and the connecting rod gets into through the opening of hanging groove one end and hangs inslot rather than the joint, realizes the connecting rod and is connected with dismantling of hanging the groove, is convenient for change the spot welding head.

The working principle is as follows: first servo motor drive movable plate removes the relative position who comes between adjusting positioning seat and the spot welding head along the slide rail, cooperate second servo motor simultaneously, the drive positioning seat rotates, change different spot welding station, guarantee to do under the condition that vertical direction removed only at the spot welding head, carry out spot welding to whole spot welding stations on the stator coil, the cylinder drives the cylinder connecting plate and moves down and is close to the positioning seat, the negative pole work bar that sets up on the lower copper fixed plate contacts the work piece earlier, stretch out along with the continuation of cylinder output, the spring on the guide pillar is compressed, the spot welding station spot welding of positive pole work bar to the work piece.

Claims

1. The utility model provides a stator automatic spot welding device which characterized in that: the spot welding machine comprises a frame, be equipped with the work platform that is used for the operation in the frame, the work platform upper rack is equipped with can follow vertical direction and be reciprocating motion's spot welding head, the first below of spot welding is equipped with the locating component of fixed work piece, be equipped with drive locating component on the work platform and remove, rotatory drive assembly, the locating component is through rotatory, the removal switching spot welding station.

2. The automatic spot welding device for the stator according to claim 1, wherein: the positioning assembly comprises a base, a positioning seat and a rotating shaft, the positioning seat is located on the upper end face of the base, the rotating shaft is arranged at the center of the base, the driving assembly comprises a sliding rail assembly and a motor assembly, the sliding rail assembly drives the positioning seat to rotate, the base is fixedly connected with the sliding rail assembly, one end of the rotating shaft is linked with the motor assembly, the other end of the rotating shaft is fixedly connected with the positioning seat, the positioning seat is circular, a circular placing groove is formed in the positioning seat, a step for placing a stator core is formed in the groove wall of the circular placing groove, a vertically placed positioning pin is inserted into the step, and the positioning pin is matched with a groove formed in the stator core.

3. A stator stitch welding device according to claim 2, wherein: the upper end face of the base is provided with an annular groove, and a plurality of steel balls for supporting the positioning seat are embedded in the annular groove.

4. A stator stitch welding device according to claim 2, wherein: the sliding rail assembly comprises a sliding rail arranged on the upper end face of the working platform, a sliding block matched with the sliding rail and a moving plate, the moving plate is fixedly connected with the sliding block, the base is fixedly connected with the moving plate, a first servo motor and a lead screw connected with the first servo motor are arranged on the lower end face of the working platform, a lead screw supporting seat is arranged at each of two ends of the lead screw, a ball screw nut is arranged on the lead screw in a penetrating mode, a nut seat connected with the moving plate is sleeved on the ball screw nut, and a sliding groove for the nut seat to penetrate through is formed in the working platform.

5. A stator stitch welding device according to claim 2, wherein: the motor assembly comprises a second servo motor and a first synchronizing wheel arranged on the rotating shaft in a sleeved mode, the second synchronizing wheel is arranged on the second servo motor and is linked with the second synchronizing wheel through a belt, a mounting groove for the second servo motor to hang is formed in the working platform, and the second servo motor is fixedly mounted on one side of the sliding rail assembly.

6. The automatic spot welding device for the stator according to claim 1, wherein: the spot welding head comprises a cylinder and a cylinder connecting plate linked with the cylinder, wherein a copper electrode base plate, an insulating base plate, a tungsten rod mounting plate and a lower copper electrode fixing plate are sequentially arranged on one end face of the cylinder connecting plate, facing the working platform, at least one insulating gasket is arranged between the tungsten rod mounting plate and the lower copper electrode fixing plate, guide pillars are arranged at two ends of the lower copper electrode fixing plate, one end of each guide pillar is located in the cylinder connecting plate and can move axially, a spring is sleeved on each guide pillar, a lower copper electrode connecting plate is embedded in the lower copper electrode fixing plate, an anode working rod and a cathode working rod are arranged in the lower copper electrode connecting plate side by side, one ends of the anode working rod and the cathode working rod are located below the lower copper electrode connecting plate, one end of the cathode working rod abuts against the lower copper electrode fixing plate, and one end of the anode working rod sequentially penetrates through the lower copper electrode fixing plate and the tungsten rod mounting plate.

7. The automatic spot welding device for the stator according to claim 6, wherein: the output of cylinder is equipped with the connecting rod of can dismantling the connection with the cylinder connecting plate, be equipped with on the cylinder connecting plate and hang the seat, hang the inslot that is equipped with the connecting rod joint in the seat, hang groove one end opening and supply the connecting rod to get into.