CN219881651U - Auxiliary tool for motor stator core welding process - Google Patents

Abstract

The utility model relates to an auxiliary tool for a motor stator core welding process, which comprises a base, a positioning shaft, a first driving part, a movable seat and a positioning part, wherein the positioning shaft is fixed on the base, the movable seat is connected to the base in a sliding manner along the axis direction of the positioning shaft, the first driving part drives the movable seat to slide on the base, and the positioning part is used for positioning a motor lamination sleeved on the positioning shaft. When the motor lamination is required to be mounted on the auxiliary tool, the movable seat is driven to slide on the base through the first driving part, so that the movable seat slides to be close to the top end of the positioning shaft, an operator sleeves the motor lamination on the positioning shaft, the motor lamination can be mounted only by falling a small distance, and the difficulty of mounting the motor lamination on the auxiliary tool is reduced; when the welded motor lamination needs to be taken down from the auxiliary tool, the movable seat is driven to move upwards to send out the welded motor lamination, and an operator can more easily take out the welded motor lamination.

Description

Auxiliary tool for motor stator core welding process

Technical Field

The utility model relates to the field of welding machine auxiliary equipment, in particular to an auxiliary tool for a motor stator core welding process.

Background

The motor laminations are the weight parts that make up the stator core. The lamination modules are sequentially calibrated and overlapped from top to bottom by a plurality of laminations, are fixed, and are welded in a fusion welding mode.

The auxiliary tool for the welding process of the motor stator core in the related art is shown in fig. 1, and comprises a base 1 and a positioning shaft 2, wherein the positioning shaft 2 is fixed on the top surface of the base 1 along the vertical direction, four positioning columns 51 are further fixed on the top surface of the base 1, and the positioning columns 51 are respectively positioned on the outer side of the positioning shaft 2 and surround the positioning shaft 2. The outer wall of the motor lamination 7 is square, round corners are rounded at four corners of the square, the inner diameter of the motor lamination 7 is matched with the outer diameter of the rotating shaft, and a plurality of through grooves 71 are formed in the motor lamination 7. The four positioning posts 51 respectively correspond to the four corners of the motor lamination 7, positioning grooves 521 which are matched with the corresponding corners of the motor lamination 7 are formed in the positioning posts 51, and when the motor lamination 7 is stacked and sleeved on the rotating shaft, the four corners of the motor lamination 7 are respectively limited in the four positioning grooves 521.

The automatic welding machine is used for welding a plurality of motor laminations together, and the length direction of the welding seam is parallel to the axis direction of the positioning shaft.

The related technical scheme has the following defects: in order to enable the positioning shaft to be sleeved with more motor laminations, the positioning shaft and the positioning column are long in common design, welding of lamination modules with different thicknesses can be met, at this time, when an operator is sleeved with the motor laminations on the positioning shaft, if the motor laminations are slightly inclined, the motor laminations are not easy to automatically fall to be abutted to the base or the last motor lamination under the action of gravity, the position of the motor laminations needs to be continuously adjusted by the operator in the falling process of the motor laminations, when the operator needs to take out the welded motor laminations, the operator needs to lift the welded motor laminations, and the operator takes out the welded motor laminations after moving out along the positioning shaft, so that the whole process is more troublesome.

Disclosure of Invention

In order to facilitate taking and placing of motor laminations on an auxiliary tool, the utility model provides an auxiliary tool for a motor stator core welding process.

The auxiliary tool for the motor stator core welding process provided by the utility model adopts the following technical scheme:

the utility model provides a motor stator core welding process auxiliary fixtures, includes base and locating shaft, the locating shaft is fixed on the base, still includes driving piece one, movable seat and setting element, movable seat is along the axis direction sliding connection of locating shaft on the base, driving piece one drives movable seat and slides on the base, movable seat is used for the bearing cover to establish the epaxial motor lamination of locating, the setting element is used for locating the epaxial motor lamination of locating of cover.

Preferably, the movable seat top surface is provided with a fixed ring, the fixed ring and the positioning shaft are coaxially arranged, when the motor lamination is sleeved on the positioning shaft, the projection of the motor lamination on the movable seat completely covers the fixed ring, and the motor lamination is abutted on the fixed ring and leaves a gap with the movable seat top surface.

Preferably, the movable seat top surface is provided with a fixed ring, the fixed ring and the positioning shaft are coaxially arranged, when the motor lamination is sleeved on the positioning shaft, the motor lamination is abutted to the fixed ring and a gap is reserved between the motor lamination and the movable seat top surface, and the motor lamination does not affect the welding of the motor lamination.

Preferably, the device further comprises a control device, a cylindrical groove is coaxially formed in the top surface of the positioning shaft, a plurality of separation slits communicated with the cylindrical groove are formed in the outer wall of the positioning shaft along the circumferential direction, the length direction of each separation slit is parallel to the axis direction of the positioning shaft, the top ends of the separation slits extend upwards to penetrate the positioning shaft, the bottom ends of the separation slits are located below the top surface of the fixed ring, a circle of annular gaps are reserved between the fixed ring and the positioning shaft, the part between the separation slits on the positioning shaft is a movable block, and the control device is used for controlling the opening degree of the movable blocks.

Preferably, the control device comprises a second driving part and a movable head, the movable head is connected to the base in a sliding manner along the axial direction parallel to the positioning shaft, the movable head is in an inverted truncated cone shape and is coaxially arranged with the positioning shaft, the second driving part drives the movable head to slide on the base, the top end of the movable head is located above the positioning shaft, and the peripheral outer wall of the movable head is used for being abutted to the inner walls of the movable blocks.

Preferably, the top end of the positioning shaft is provided with an outer circular chamfer, and each edge angle at the top end of the positioning column is provided with a first chamfer.

Preferably, the movable seat comprises a driving motor, a screw rod, a bearing plate and a plurality of ejector rods, wherein the driving motor is fixedly arranged on a base, the length direction of an output shaft of the driving motor is parallel to the sliding direction of the movable seat, the output shaft of the driving motor penetrates through the bearing plate and is in threaded connection with the bearing plate, the ejector rods are fixed on the bearing plate, a plurality of avoiding holes for the plurality of ejector rods to penetrate through are formed in the base, the ejector rods are correspondingly connected with the avoiding holes in a sliding mode along the sliding direction parallel to the movable seat, and the ejector rods are located below the movable seat and are used for jacking the movable seat.

The technical effects of the utility model are mainly as follows:

1. according to the utility model, the first driving part and the movable seat are arranged, when the motor lamination needs to be mounted on the auxiliary tool, the movable seat is driven to slide to the top end close to the positioning shaft by the first driving part, at the moment, an operator sleeves the motor lamination on the positioning shaft, the motor lamination can be mounted only by falling a small distance, and the difficulty of mounting the motor lamination on the auxiliary tool is reduced; when the welded motor lamination needs to be taken down from the auxiliary tool, the movable seat is driven to move upwards to send out the welded motor lamination, and an operator can more easily take out the welded motor lamination;

2. according to the utility model, the fixed ring is arranged, so that a gap is kept between the motor lamination and the movable seat all the time, the gap can facilitate the automatic welding machine to weld the motor lamination, so that a welding head on the automatic welding machine cannot move to touch the movable seat, and meanwhile, the gap can facilitate fingers of an operator to extend into the gap to take out the motor lamination;

3. according to the utility model, the separating slits are arranged, and under the action of the separating slits, the movable blocks can deform to a certain extent, and the movable blocks can be opened and abutted on the inner wall of the motor lamination, so that the positions of the motor lamination on the positioning shaft are limited by friction, and displacement is not easy to occur during welding.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the related art.

Fig. 2 is a schematic overall structure of an embodiment of the present utility model.

FIG. 3 is a schematic view of the movable seat of the present utility model moved to a position near the top end of the positioning shaft.

Fig. 4 is a cross-sectional view taken along line A-A of fig. 2.

Reference numerals illustrate: 1. a base; 11. avoidance holes; 2. positioning a shaft; 21. a cylindrical groove; 22. a separation slit; 23. a movable block; 231. an avoidance groove; 24. chamfering the outer circle; 3. a movable seat; 31. a fixing ring; 32. penetrating a groove; 4. a first driving member; 41. a driving motor; 42. a screw rod; 421. a limiting block; 43. a receiving plate; 44. a push rod; 5. a positioning piece; 51. positioning columns; 52. a first chamfer; 521. a positioning groove; 6. a control device; 61. a second driving piece; 611. a cylinder; 62. a movable head; 7. lamination of the motor; 71. a through groove; 72. and (3) welding seams.

Detailed Description

The present utility model will be further described in detail below with reference to fig. 2-4, so that the technical solution of the present utility model can be more easily understood and mastered.

The embodiment of the utility model discloses an auxiliary tool for a motor stator core welding process.

Referring to fig. 2-4, an auxiliary tool for a motor stator core welding process of the present embodiment includes a base 1, a positioning shaft 2, a first driving member 4, a movable seat 3 and a positioning member 5, where the positioning shaft 2 is fixed at the center of the top surface of the base 1 along the vertical direction. The movable seat 3 is annular, the movable seat 3 and the positioning shaft 2 are coaxially arranged, the movable seat 3 surrounds the positioning shaft 2 and is not in contact with the positioning shaft 2, the movable seat 3 is slidably connected to the base 1 along the axis direction of the positioning shaft 2, the first driving part 4 drives the movable seat 3 to slide on the base 1, the positioning part 5 is used for positioning the motor lamination 7 sleeved on the positioning shaft 2, and a plurality of motor lamination 7 are sequentially calibrated and overlapped from top to bottom to form a lamination module.

Referring to fig. 2-4, the outer wall of the motor lamination 7 is square, rounded corners are rounded at four corners of the square, the inner diameter of the motor lamination 7 is matched with the outer diameter of the rotating shaft, and a plurality of through grooves 71 are uniformly formed in the circumferential inner wall of the motor lamination 7 along the circumferential direction.

Referring to fig. 2 to 4, the first driving member 4 includes a driving motor 41, a screw 42, a receiving plate 43, and a plurality of push rods 44, the driving motor 41 is fixed on the bottom surface of the base 1, the driving motor 41 is located below the base 1, and an output shaft of the driving motor 41 is vertically downward and coaxially fixed on the screw 42. Four avoidance holes 11 through which four ejector rods 44 pass are formed in the base 1 along the vertical direction, the four avoidance holes 11 respectively correspond to the four ejector rods 44, the ejector rods 44 are connected to the corresponding avoidance holes 11 in a sliding mode along the vertical direction, the bottom ends of the ejector rods 44 are fixed to the bearing plate 43, the lead screw 42 is arranged in a penetrating mode and is connected to the bearing plate 43 in a threaded mode, and a limiting block 421 is fixed to the bottom end of the lead screw 42 and used for preventing the bearing plate 43 from being separated from the lead screw 42.

Referring to fig. 2 to 4, the screw rod 42 is driven to rotate by the rotation of the output shaft of the driving motor 41, the screw rod 42 drives the receiving plate 43 screwed on the screw rod 42 to slide in the vertical direction, and finally the ejector rod 44 is driven to slide in the vertical direction. The four ejector rods 44 are uniformly distributed along the circumferential direction of the positioning shaft 2, the vertical projection of the four ejector rods 44 on the movable seat 3 is close to the edge of the movable seat 3, and the ejector rods 44 are positioned below the movable seat 3 and used for jacking up the movable seat 3.

Referring to fig. 2-4, to facilitate the mounting of the motor stack 7 on the positioning shaft 2, the top end of the positioning shaft 2 is provided with an outer circumferential chamfer 24.

Referring to fig. 2-4, when the motor lamination 7 needs to be mounted on the auxiliary tool, the movable seat 3 is driven to slide on the base 1 by the first driving part 4, so that the movable seat 3 moves up to be close to the top end of the positioning shaft 2, at this time, an operator sleeves the motor lamination 7 on the positioning shaft 2, the motor lamination 7 can be mounted on the positioning shaft 2 and the positioning column 51 only by falling a small distance, as the stacking thickness of the motor lamination 7 is continuously increased, the movable seat 3 continues to move down by a proper distance, the mounting distance of the motor lamination 7 is always kept at a small distance, the difficulty in mounting the motor lamination 7 on the auxiliary tool can be reduced, after all the motor lamination 7 is mounted, the first driving part 4 drives the movable seat 3 to move down, an operator applies force to press down on the uppermost motor lamination 7 stacked on the uppermost motor lamination 7, so that the stacked motor lamination 7 always keeps a whole to move down, a plurality of motor lamination 7 positioned on the upper surface are prevented from moving down along with most motor lamination 7, and finally the movable seat 3 moves to be abutted on the base 1, and the motor lamination 7 is welded together in a direction parallel to the axis 72 direction of the axis of the motor lamination 7.

Referring to fig. 2-4, a fixed ring 31 is coaxially fixed on the top surface of the movable seat 3, when the motor lamination 7 is sleeved on the positioning shaft 2, the motor lamination 7 is abutted on the fixed ring 31, a gap is reserved between the motor lamination 7 and the top surface of the movable seat 3, the gap can facilitate an automatic welding machine to weld the motor lamination 7, a welding head on the automatic welding machine can not move to touch the movable seat 3, and meanwhile, the gap can facilitate fingers of an operator to stretch in to take out the motor lamination 7.

Referring to fig. 2 to 4, the positioning member 5 includes four positioning posts 51, the four positioning posts 51 are fixed on the top surface of the base 1 in the vertical direction, the top ends of the positioning posts 51 are close to the top end of the positioning shaft 2, and the positioning posts 51 are located outside the fixing ring 31. Four through grooves 32 for the positioning columns 51 to pass through are formed in the movable seat 3, and the movable seat 3 is connected to the four positioning columns 51 in a sliding manner along the vertical direction. The four positioning posts 51 respectively correspond to four through slots 71 in the plurality of through slots 71 of the motor lamination 7, the positioning posts 51 are used for being inserted into the corresponding through slots 71 of the motor lamination 7 and positioning the motor lamination 7, and the two side walls of the positioning posts 51 are mutually abutted with the two side walls in the through slots 71. When the motor lamination 7 is sleeved on the positioning shaft 2 and the positioning column 51 extends into the corresponding through groove 71 of the motor lamination 7, the motor lamination 7 is completely limited at this time, and the motor lamination 7 is orderly stacked in sequence. In order to facilitate the mounting of the motor lamination 7 on the positioning post 51, a first chamfer 52 is provided on each edge of the top end of the positioning post 51.

Referring to fig. 2-4, an auxiliary tool for a welding process of a motor stator core in this embodiment further includes a control device 6, a cylindrical groove 21 is coaxially formed on the top surface of the positioning shaft 2, a plurality of separation slits 22 communicated with the cylindrical groove 21 are formed on the outer wall of the positioning shaft 2 along the circumferential direction, the length direction of the separation slits 22 is parallel to the axis direction of the positioning shaft 2, the top ends of the separation slits 22 extend upwards to penetrate the positioning shaft 2, and the bottom ends of the separation slits 22 are always located below the top surface of the fixing ring 31. The part of the positioning shaft 2 between the plurality of separation slits 22 is made into movable blocks 23, the movable blocks 23 can be deformed to a certain extent under the action of the separation slits 22, and the control device 6 is used for controlling the opening degree of the plurality of movable blocks 23. Since the movable block 23 can be opened to change the outer diameter of the positioning shaft 2 to a certain extent, a circle of annular gap is always reserved between the fixed ring 31 and the positioning shaft 2, and the deformation of the movable block 23 is not influenced by the positioning ring.

Referring to fig. 2 to 4, the control device 6 includes a second driving member 61 and a movable head 62, the movable head 62 is slidably connected to the base 1 along an axis direction parallel to the positioning shaft 2, the movable head 62 is in an inverted truncated cone arrangement, and the second driving member 61 drives the movable head 62 to slide on the base 1. The top end of the movable head 62 is located above the positioning shaft 2, the bottom end of the movable head 62 is located in the cylindrical groove 21, and the circumferential outer wall of the movable head 62 is used for being abutted against the inner walls of the plurality of movable blocks 23.

Referring to fig. 2-4, the second driving member 61 is a cylinder 611, the cylinder 611 is fixed on the top surface of the base 1, the bottom wall of the cylinder groove 21 is provided with a avoiding groove 231 for accommodating the cylinder 611, and a piston rod of the cylinder 611 is vertically upwards arranged and coaxially fixed at the bottom end of the movable head 62. When the piston rod of the air cylinder 611 extends, the movable head 62 moves upwards and is not abutted against the inner wall of the movable block 23, the movable block 23 can restore to the initial vertical state towards one side of the axis of the positioning shaft 2 under the condition of no stress, and an operator can better install and take out the motor lamination 7 on the positioning shaft 2. When the piston rod of the air cylinder 611 is contracted, the movable head 62 moves down to the abutment on the inner wall of the movable block 23, and the plurality of movable blocks 23 are opened and abutted on the inner wall of the motor lamination 7, so that the position of the motor lamination 7 on the positioning shaft 2 is limited by friction, displacement is not easy to occur during welding, and the welding quality is improved.

Referring to fig. 2-4, the base 1 can be matched with an automatic welding machine for the motor lamination 7, and the external driving mechanism is used for driving the base 1 to move, so that the base 1 can move to a position suitable for welding by the automatic welding machine, and further, the welding operation can be facilitated.

Of course, the above is only a typical example of the utility model, and other embodiments of the utility model are also possible, and all technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of the utility model claimed.

Claims (7)

1. The utility model provides a motor stator core welding process auxiliary fixtures, includes base (1) and locating shaft (2), locating shaft (2) are fixed on base (1), its characterized in that: still include driving piece one (4), movable seat (3) and setting element (5), the axis direction sliding connection of movable seat (3) along locating shaft (2) is on base (1), driving piece one (4) drive movable seat (3) slide on base (1), movable seat (3) are used for bearing motor lamination (7) of cover on locating shaft (2), setting element (5) are used for locating motor lamination (7) of cover on locating shaft (2).

2. The auxiliary tool for the motor stator core welding process according to claim 1, wherein: be equipped with solid fixed ring (31) on movable seat (3) top surface, gu fixed ring (31) set up with locating shaft (2) is coaxial, and when motor lamination (7) cover was established on locating shaft (2), motor lamination (7) butt was on gu fixed ring (31) and is left the clearance with between movable seat (3) top surface, motor lamination (7) do not cause the influence to the welding of motor lamination (7).

3. The auxiliary tool for the motor stator core welding process according to claim 1, wherein: the locating piece (5) comprises a plurality of locating columns (51), the locating columns (51) are fixed on the base (1), the length direction of the locating columns (51) is parallel to the axis direction of the locating shaft (2), a plurality of through grooves (32) for the locating columns (51) to pass through are formed in the movable base (3), the movable base (3) is slidably connected to the locating columns (51), the locating columns (51) are used for being inserted into corresponding through grooves (71) of the motor lamination (7) and locating the motor lamination (7), and the locating columns (51) are at least provided with two side outer walls which are abutted on two side inner walls of the through grooves (71) of the motor lamination (7).

4. The auxiliary tool for the motor stator core welding process according to claim 1, wherein: still include controlling means (6), cylindrical groove (21) have been seted up on the locating shaft (2) top surface coaxially, along circumference direction on locating shaft (2) outer wall set up with cylindrical groove (21) intercommunication many separation seam (22), the length direction of separation seam (22) is on a parallel with the axis direction of locating shaft (2), the top of separation seam (22) upwards extends to run through locating shaft (2), separation seam (22) bottom is located the below of solid fixed ring (31) top surface, leave round annular space between solid fixed ring (31) and locating shaft (2), make the part between many separation seams (22) on locating shaft (2) be movable block (23), controlling means (6) are used for controlling the degree of opening of a plurality of movable blocks (23).

5. The auxiliary tool for the motor stator core welding process as claimed in claim 4, wherein: the control device (6) comprises a driving piece II (61) and a movable head (62), the movable head (62) is connected to the base (1) in a sliding manner along the axial direction parallel to the positioning shaft (2), the movable head (62) is in an inverted truncated cone shape and is coaxially arranged with the positioning shaft (2), the driving piece II (61) drives the movable head (62) to slide on the base (1), the top end of the movable head (62) is located above the positioning shaft (2), and the circumferential outer wall of the movable head (62) is used for being abutted to the inner walls of the movable blocks (23).

6. A motor stator core welding process auxiliary fixture according to claim 3, wherein: an outer circular chamfer (24) is formed in the top end of the positioning shaft (2), and first chamfers (52) are formed in the edges and corners of the top end of the positioning column (51).

7. The auxiliary tool for the motor stator core welding process according to claim 1, wherein: including driving motor (41), lead screw (42), accept board (43) and a plurality of ejector pin (44), driving motor (41) are fixed to be set up on base (1), the length direction of driving motor (41) output shaft is on a parallel with the slip direction of movable seat (3), driving motor (41) output shaft wears to establish and threaded connection is on accepting board (43), ejector pin (44) are fixed on accepting board (43), offer a plurality of hole (11) of dodging that supply a plurality of ejector pins (44) passed on base (1), ejector pin (44) are along being on corresponding hole (11) of dodging of sliding direction sliding connection that is parallel with movable seat (3), ejector pin (44) are located the below of movable seat (3) and are used for jack-up movable seat (3).