CN212019792U - Automatic welding device for stator core - Google Patents

Abstract

The utility model discloses an automatic welding device for a stator iron core, which relates to the technical field of welding equipment. The utility model comprises a body. The body includes a welding torch assembly, a clamping assembly and a workbench. The clamping assembly is located on the workbench and extends along the direction of the workbench. Sliding setting in the length direction; the clamping assembly includes a fixed-angle chuck arranged horizontally, and the fixed-angle chuck rotates regularly; a rotating shaft is passed through the axis of the fixed-angle chuck, and the rotating shaft and the fixed-angle chuck rotate coaxially; the stator assembly The welding torch assembly is located on the worktable and includes a welding torch, which is arranged vertically with the rotating shaft, and the welding torch is arranged corresponding to a waist-shaped hole facing it. The utility model has an automatic rotating shaft, and automatically welds the joints of the stator iron core through a welding gun, thereby reducing the phenomenon of lack of welding and missing welding, thereby improving the welding quality of the stator iron core.

Description

An automatic welding device for stator core

technical field

The utility model relates to the technical field of welding equipment, in particular to an automatic welding device for a stator iron core.

Background technique

At present, the stator assembly is the stationary part of the motor, and its main function is to generate a rotating magnetic field. A schematic diagram of the overall structure of the existing stator assembly 1 is shown in FIG. 1 . The stator assembly 1 is composed of three parts, a plurality of stator iron cores 11 , a stator winding 12 and a stator frame 13 . During production, the copper wire used as the stator winding 12 is first wound around the winding on the stator iron core 11, and then the stator iron core 11 with the stator winding 12 is assembled into a whole into the stator frame 13 to form a stator. Component 1. A plurality of waist-shaped holes 131 are evenly distributed on the circumferential side wall of the stator frame 13 . The waist-shaped holes 131 are opened along the length direction of the stator frame 13 , and the waist-shaped holes 131 respectively correspond to the joints between the adjacent stator cores 11 . set up.

In the above-mentioned prior art solutions, the connection method of the stator iron core is mostly manual welding. The stator frame with the stator iron core is installed on the rotating shaft, and the rotating shaft is manually rotated. Weld adjacent stator cores together.

The above-mentioned prior art solutions have the following defects: the use of manual rotation of the rotating shaft to weld the stator core is controlled by human factors, and it is easy to cause the phenomenon of lack of welding and missing welding, which makes it difficult to control the welding quality of the stator core.

Utility model content

According to the deficiencies in the prior art, the purpose of the present invention is to provide an automatic welding device for stator iron core, which has an automatic rotating shaft, and automatically welds the joints of the stator iron core through a welding gun, so as to reduce the phenomenon of lack of welding and leakage of welding. , so as to improve the effect of the welding quality of the stator core.

The above-mentioned technical purpose of the present utility model is achieved through the following technical solutions:

An automatic welding device for a stator iron core, comprising a body, wherein the body includes a welding torch assembly, a clamping assembly and a workbench, the clamping assembly is located on the workbench and is slidably arranged along the length direction of the workbench;

The clamping assembly includes a horizontally arranged fixed-angle chuck, and the fixed-angle chuck rotates regularly; a rotating shaft is passed through the axis of the fixed-angle chuck, and the rotating shaft is coaxial with the fixed-angle chuck Rotation; the stator assembly is sleeved on the outer circumferential side of the rotating shaft and rotates coaxially with the rotating shaft;

The welding torch assembly is located on the worktable, and includes a welding torch, the welding torch is arranged perpendicular to the rotating shaft, and the welding torch is arranged corresponding to a waist-shaped hole facing the welding torch.

By adopting the above technical solution, the fixed-angle chuck is used for clamping rotating shafts with different outer diameters according to the inner diameter of the stator iron core enclosed in a ring shape, so that when the stator assembly is sleeved on the rotating shaft, it can be aligned with the rotating shaft. change. The welding gun is arranged corresponding to a waist-shaped hole, and the clamping assembly can be slidably connected along the length direction of the workbench. When the welding gun is welding a waist-shaped hole, the clamping assembly slides, so that the welding gun can automatically weld the joint of the stator iron core along the length direction of the waist-shaped hole.

The fixed-angle chuck can rotate the shaft at a fixed angle according to the number of waist-shaped holes. When the welding gun finishes welding the seam of the stator iron core in one waist-shaped hole, the fixed-angle chuck rotates the angle to make the next waist-shaped hole. The holes correspond to the welding gun and continue to slide to facilitate welding by the welding gun. It has an automatic rotating shaft, and automatically welds the joints of the stator core through the welding gun, reducing the phenomenon of lack of welding and missing welding, thereby improving the welding quality of the stator core.

In a preferred example of the present invention, it can be further configured as follows: the clamping assembly further includes a mounting seat, a transmission motor, and a first bevel gear and a second bevel gear that mesh with each other, the mounting seat is hollow inside, and the One end of the fixed-angle chuck away from the stator frame is inserted into the mounting seat and is rotatably connected with the mounting seat;

The transmission motor is fixedly connected to one side wall of the mounting seat, and its output shaft extends into the interior of the mounting seat and is arranged;

The transmission motor is arranged perpendicular to the rotating shaft, the first bevel gear and the second bevel gear are located inside the mounting seat, and the first bevel gear is fixedly sleeved on the output shaft of the transmission motor, The second bevel gear is fixedly sleeved on the circumferential outer side of one end of the fixed-angle chuck located inside the mounting seat.

By adopting the above technical solution, the mounting seat is used to install the transmission motor and the fixed-angle chuck, and the transmission motor drives the fixed-angle chuck to rotate through the meshing of the first bevel gear and the second bevel gear, so that the timing opening and closing of the transmission motor can be controlled. The fixed-angle turntable rotates at a fixed angle at a fixed angle, so as to realize the automatic rotation of the shaft, so that the welding gun can automatically weld the waist-shaped hole, which can reduce the phenomenon of missing welding and missing welding, and can improve the welding quality of the stator core.

In a preferred example of the present invention, it can be further configured that: the clamping assembly further includes a first sliding seat, and the mounting seat is located on the top of the first sliding seat and is fixed to the first sliding seat The top of the worktable is provided with a second sliding seat along the length direction of the rotating shaft, and the first sliding seat is slidingly connected along the length direction of the second sliding seat.

By adopting the above technical solution, the first sliding seat can facilitate the installation of the fixed mounting seat, and the second sliding seat can facilitate the guiding and sliding of the first sliding seat, so that the first sliding seat can be along the extending direction of the second sliding seat Stable and directional slip.

In a preferred example of the present invention, it can be further configured that: the second sliding seat is a rodless cylinder, and the first sliding seat is a slider of a rodless cylinder.

By adopting the above technical solution, the failure rate of the rodless cylinder is low, and the thrust to the slider is relatively uniform, which can facilitate the sliding of the mounting seat to be relatively stable. The slider of the rodless cylinder has high positioning accuracy, which can easily control the relative position of the two axial ends of the waist hole and the welding gun, thereby preventing the welding gun from being welded outside the waist hole.

In a preferred example of the present invention, an indicator plate is connected to one side of the mounting seat, an indicator shaft is rotatably connected to the axis of the indicator plate, one end of the indicator shaft is connected to an indicator needle, and the other end is connected to an indicator pin. It is connected with the output shaft of the transmission motor or the fixed-angle chuck.

By adopting the above technical solution, the indicator plate is used to display the angle pointed by the indicator needle, and the indicator shaft is used to rotate together with the output shaft of the transmission motor or the fixed-angle chuck, so that the indicator needle rotates around the axis of the indicator plate. The combination of the indicator pin and the indicator plate can facilitate the operator to observe the angle of the indicator pin through the indicator plate, so as to judge whether the welding gun is missing welding, lacking welding or the corresponding relationship between the waist hole and the welding gun, and then can control the welding of the stator core. quality.

In a preferred example of the present invention, it can be further configured as follows: the welding torch assembly further comprises a vertically arranged support seat and a telescopic rod arranged in parallel with the worktable, and one end of the support seat is fixedly connected with the worktable, The other end is connected with the telescopic rod; the end of the telescopic rod away from the support base is fixedly connected with the welding gun.

By adopting the above technical solution, the support base is used to support and connect the telescopic rod, the telescopic rod is used to connect the welding gun, and the relative positional relationship between the welding gun and the stator assembly can be controlled by the telescopic rod, so that the welding gun can be used to a greater extent. Welding stator components with different outer diameters.

In a preferred example of the present invention, the welding gun can be further configured as follows: the welding gun is arranged vertically, and the welding gun is located above the stator frame, and the stator frame is far away from the first sliding seat corresponding to the stator frame. Waist hole setting on one side.

By adopting the above technical solution, the welding gun is located above the stator base, which not only facilitates the installation of the stator assembly, but also makes one of the waist-shaped holes always face the welding gun, and can avoid moving the welding gun to a large extent, so that the welding gun and the rotating shaft can be connected to each other. The initial relative position is easier to control.

In a preferred example of the present invention, the welding gun can be further configured as follows: the welding gun includes a gun seat and a gun head, one end of the gun seat is fixedly connected to the telescopic rod, the other end is connected to the gun head, and the gun The head is connected up and down with the gun seat.

By adopting the above technical solution, the gun seat and the telescopic rod are connected up and down, which can easily adjust the vertical distance between the gun head and the waist-shaped hole, so as to facilitate better control of the welding effect at the joint of the stator iron core.

To sum up, the present utility model includes at least one of the following beneficial technical effects:

1. Through the setting of the fixed-angle chuck, the rotating shaft and the welding gun, the rotating shaft can be automatically rotated, and the joints of the stator core can be automatically welded by the welding gun, so as to reduce the phenomenon of lack of welding and missing welding, thereby improving the stability of the stator core. The effect of welding quality;

2. Through the setting of the transmission motor, the first bevel gear and the second bevel gear, the timing and fixed-angle rotation of the fixed-angle turntable can be controlled by the timing opening and closing of the transmission motor, thereby reducing the phenomenon of lack of welding and leakage of welding;

3. Through the arrangement of the first sliding seat and the second sliding seat, it is easy to control the orientation and stable sliding of the mounting seat, so that the stator assembly can be displaced along its axial direction, so as to facilitate the welding of the stator core by the welding gun effect at the seam.

Description of drawings

FIG. 1 is a schematic diagram of the overall structure of a stator assembly in the prior art.

FIG. 2 is a schematic diagram of the overall structure of the welding device in the present invention.

FIG. 3 is a schematic diagram of the connection structure of the welding device in this embodiment.

FIG. 4 is a partial enlarged schematic view of part A in FIG. 3 .

In the figure, 1, stator assembly; 11, stator iron core; 12, stator winding; 13, stator frame; 131, waist hole; 2, body; 21, PLC controller; 3, welding torch assembly; 31, support seat ;32, telescopic cylinder; 33, telescopic rod; 34, welding gun; 341, gun seat; 342, gun head; 4, clamping assembly; 41, first sliding seat; 42, mounting seat; 43, transmission motor; 44, the first bevel gear; 45, the fixed angle chuck; 46, the second bevel gear; 47, the rotating shaft; 5, the indicator plate; 51, the indicator shaft; 52, the indicator needle; 53, the connecting ring; 61. The second sliding seat.

Detailed ways

The present utility model will be described in further detail below in conjunction with the accompanying drawings.

Example:

2, a stator core automatic welding device disclosed by the present utility model includes a body 2, the body 2 includes a welding torch assembly 3, a clamping assembly 4 and a workbench 6, and the welding torch assembly 3 and the clamping assembly 4 are located on the workbench 6. . A second sliding seat 61 is installed on the table top of the workbench 6 along its length direction. The clamping assembly 4 includes a first sliding seat 41. The first sliding seat 41 is clamped on the upper surface of the second sliding seat 61 and extends along the The two sliding seats 61 are slidably connected in the longitudinal direction. In order to facilitate the control of the sliding precision of the second sliding seat 61 , in this embodiment, the second sliding seat 61 adopts a rodless cylinder, and the first sliding seat 41 is a slider of the rodless cylinder.

3 and 4, the clamping assembly 4 further includes a mounting seat 42, a transmission motor 43, and a fixed-angle chuck 45. The bottom of the mounting seat 42 is fixedly mounted on the top of the first sliding seat 41 by bolts, and the interior of the mounting seat 42 is hollow. . In order to facilitate the installation and fixation of the mounting seat 42, one side wall of the mounting seat 42 is detachable. The transmission motor 43 is mounted on the top of the mounting seat 42, and its output shaft penetrates into the interior of the mounting seat 42; The sliding directions of the sliding seat 41 are arranged in parallel. A first bevel gear 44 and a second bevel gear 46 meshing with each other are arranged inside the mounting seat 42 , the first bevel gear 44 is fixedly sleeved on the output shaft of the transmission motor 43 , and the second bevel gear 46 is fixedly sleeved on the fixed-angle chuck One end of 45 protruding into the mounting seat 42 is circumferentially outward.

2, the workbench 6 is also provided with a PLC controller 21, through which the PLC controller 21 regularly opens and closes the transmission motor 43, thereby controlling the fixed-angle chuck 45 to rotate at a fixed angle. A rotating shaft 47 is clamped at the axis of the fixed-angle chuck 45, the stator assembly 1 is sleeved on the rotating shaft 47, and one end of the stator base 13 is sleeved at the claw of the fixed-angle chuck 45, and the fixed-angle chuck 45 rotates. The rotating shaft 47 and the stator assembly 1 are driven to rotate at the same time. The rodless cylinder is opened and closed regularly by the PLC controller 21 , so that the first sliding seat 41 can drive the mounting seat 42 to be positioned and slid as a whole. The welding torch assembly 3 includes a welding torch 34, and the joints of the stator cores 11 in the circumferential direction of the stator assembly 1 can be continuously welded when the welding torch 34 is fixed, so as to reduce the phenomenon of lack of welding and leakage of welding, and the Welding quality is easier to control.

3 and 4, in order to facilitate the observation of the rotation angle of the rotating shaft 47, the side wall opposite to the fixed-angle turntable on the mounting seat 42 is connected with an indicating plate 5, and the axis of the indicating plate 5 is rotatably connected with an indicating shaft 51, indicating One end of the shaft 51 protruding from the mounting base 42 is connected with an indicator pin 52 , and the other end is fixedly sleeved with a connecting ring 53 , which is fixedly connected to one end of the fixed-angle chuck 45 through the connecting ring 53 and rotates coaxially. The operator observes the corner of the indicator pin 52 through the indicator plate 5 to determine whether the welding torch 34 is missing or lacking in welding or the number of rotation angles of the waist hole 131 is insufficient to correspond to the welding torch 34 .

2, the welding torch assembly 3 further includes a support base 31, a telescopic cylinder 32 and a telescopic rod 33, the support base 31 and the welding gun 34 are arranged vertically, and the telescopic cylinder 32 and the telescopic rod 33 are arranged horizontally. One end of the support base 31 is fixedly mounted on the surface of the workbench 6 by bolts, and the other end is welded with the telescopic cylinder 32 . The telescopic rod 33 is welded with the piston rod of the telescopic cylinder 32 . The welding gun 34 includes a gun seat 341 and a gun head 342 . The gun head 342 is located at the end of the gun base 341 facing the rotating shaft 47 .

2 and 3, the PLC controller 21 is electrically connected to the telescopic cylinder 32. After the stator assembly 1 is sleeved on the rotating shaft 47, the telescopic cylinder 32 telescopically drives the welding gun 34 to move directly above the stator assembly 1, so that the gun head 342 Corresponding to one end of the waist-shaped hole 131 is provided. Then, the height of the gun head 342 is adjusted up and down, so that the distance between the gun head 342 and the waist-shaped hole is 1311-6 cm, which is convenient for the welding of the gun head 342. In this embodiment, the gun head 342 adopts laser welding.

The implementation principle of the above-mentioned embodiment is as follows: firstly, the support base 31 is fixedly installed at the position within the sliding stroke of the second sliding base 61 , and then the first sliding base 41 is reset so that the first sliding base 41 is located in the second sliding base 41 . One end of the displacement seat 61 . The indicator needle 52 is then turned so that the indicator needle 52 faces the 50° scale of the indicator disc. Next, one of the waist-shaped holes 131 of the stator assembly 1 is placed toward the side away from the second sliding seat 61 , and the stator assembly 1 is sleeved on the rotating shaft 47 with the end of the stator frame 13 facing the fixed-angle chuck 45 . fixed by the jaws. Then, according to the number and length of the waist-shaped holes 131 on a stator assembly 1, the opening and closing time of the transmission motor 43 is set, and the angle of each opening and rotation of the transmission motor 43 is equal to the angle between the two adjacent waist-shaped holes 131. The degree is equal to the multiple of the angle between two adjacent waist-shaped holes 131 .

Next, the welding gun 34 is moved above the rotating shaft 47 through the telescopic cylinder 32 , and the gun head 342 is lowered to a distance of 5 cm from the outer surface of the stator base 13 . Then, the rodless air cylinder is activated, so that the first sliding seat 41 slides along the extending direction of the second sliding seat 61 until the gun head 342 is located just above the end of the waist hole 131 away from the mounting seat 42 . Finally, the rodless start is controlled by the PLC controller 21, and the first sliding seat 41 is slid toward the direction in which the mounting seat 42 is set. While the first sliding seat 41 is sliding, the torch head 342 starts welding, and when the torch head 342 is located above the other end of the waist-shaped hole 131 , the welding is stopped. Then the PLC controller 21 controls the transmission motor 43 to start and rotate until the end of the next waist-shaped hole 131 corresponds to the gun head 342 . Then the PLC controller 21 controls the rodless start, and the gun head 342 welds the joint of the stator iron core 11 at the next waist hole 131 . According to the above steps, the rotating shaft 47 can be automatically rotated and the stator assembly 1 can be moved to achieve the purpose of automatically welding all the joints of the stator cores 11 on the stator assembly 1 .

When welding the stator core 11 of the same specification, only the next stator assembly 1 needs to be replaced, and the waist hole 131 and the gun head 342 are corresponding to each other, and the transmission motor 43 and the rodless cylinder can be controlled by the PLC controller 21 to reciprocate and move. The stator core 11 is automatically welded.

The embodiments of this specific embodiment are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention, therefore: all equivalent changes made according to the structure, shape and principle of the present invention are It should be covered within the protection scope of the present invention.

Claims (8)

1. An automatic welding device for a stator core, characterized in that it comprises a body (2), the body (2) comprising a welding torch assembly (3), a clamping assembly (4) and a workbench (6), the The clip assembly (4) is located on the workbench (6), and is slidably arranged along the length direction of the workbench (6); The clamping assembly (4) includes a fixed-angle chuck (45) arranged horizontally, and the fixed-angle chuck (45) rotates periodically; the axis of the fixed-angle chuck (45) is provided with a rotating shaft (47) ), and the rotating shaft (47) rotates coaxially with the fixed-angle chuck (45); the stator assembly (1) is sleeved on the outer circumferential side of the rotating shaft (47) and is coaxial with the rotating shaft (47) turn; The welding torch assembly (3) is located on the worktable (6), and includes a welding torch (34), the welding torch (34) is vertically arranged with the rotating shaft (47), and the welding torch (34) faces correspondingly A waist-shaped hole (131) thereof is provided. 2 . The automatic stator core welding device according to claim 1 , wherein the clamping assembly ( 4 ) further comprises a mounting seat ( 42 ), a transmission motor ( 43 ), and a first intermeshing first The bevel gear (44) and the second bevel gear (46), the mounting seat (42) is hollow inside, and the fixed-angle chuck (45) is inserted into the mounting seat (42) at one end away from the stator frame (13). ) and rotatably connected with the mounting seat (42); The transmission motor (43) is fixedly connected to one side wall of the mounting seat (42), and its output shaft is arranged inside the mounting seat (42); The transmission motor (43) is vertically arranged with the rotating shaft (47), the first bevel gear (44) and the second bevel gear (46) are located inside the mounting seat (42), and the first bevel gear (44) and the second bevel gear (46) are located inside the mounting seat (42). A bevel gear (44) is fixedly sleeved on the output shaft of the transmission motor (43), and the second bevel gear (46) is fixedly sleeved on the fixed-angle chuck (45) on the mounting seat (42). ) inside one end is circumferentially outside. 3. The stator core automatic welding device according to claim 2, characterized in that: the clamping assembly (4) further comprises a first sliding seat (41), and the mounting seat (42) is located at the The top of the first sliding seat (41) is fixedly connected with the first sliding seat (41), and the top of the workbench (6) is provided with a second sliding seat ( 61), the first sliding seat (41) is slidably connected along the length direction of the second sliding seat (61). The automatic welding device for stator iron core according to claim 3, characterized in that: the second sliding seat (61) adopts a rodless cylinder, and the first sliding seat (41) is a rodless cylinder Slider of the cylinder. 5 . The automatic welding device for stator iron core according to claim 3 , wherein an indicator plate ( 5 ) is connected to one side of the mounting seat ( 42 ), and the indicator plate ( 5 ) rotates at the axis center. 6 . An indicator shaft (51) is connected, one end of the indicator shaft (51) is connected with an indicator needle (52), and the other end is connected with the output shaft of the transmission motor (43) or the fixed angle chuck (45). 6. An automatic stator core welding device according to claim 3, characterized in that: the welding torch assembly (3) further comprises a vertically arranged support seat (31), and the working table (6) A telescopic rod (33) arranged in parallel, one end of the support base (31) is fixedly connected with the workbench (6), and the other end is connected with the telescopic rod (33); the telescopic rod (33) is far away from the support base One end of (31) is fixedly connected with the welding gun (34). 7. The automatic stator core welding device according to claim 6, wherein the welding gun (34) is arranged vertically, and the welding gun (34) is located above the stator frame (13), and corresponding to the waist-shaped hole (131) on the side of the stator frame (13) away from the first sliding seat (41). 8 . The automatic stator core welding device according to claim 7 , wherein the welding gun ( 34 ) comprises a gun seat ( 341 ) and a gun head ( 342 ), one end of the gun seat ( 341 ). It is fixedly connected with the telescopic rod (33), and the other end is connected with the gun head (342), and the gun head (342) is connected with the gun seat (341) in an ascending and descending manner.

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