Double-station automatic argon arc welding operation table for small motor stator core

Abstract

The utility model discloses a small motor stator core double-station automatic argon arc welding operation table, relates to the field of motors, and aims to solve the problems that a clamping assembly of an existing welding table is poor in adjusting performance and cannot be properly adjusted according to stator cores of different models, welding precision is affected, and even welding defects are prone to occurring. A fixing frame is fixedly connected to the base, a welding frame is slidably connected to the fixing frame, a welding table is slidably connected to the welding frame, a welding head is fixedly connected to the welding table, a rotating shaft is arranged below the welding head and rotatably connected with a supporting table, and the supporting table is fixedly connected with the base. The automatic welding device has the advantages that the stator cores of different specifications can be fixed by the centering clamp holder, the applicability of the automatic welding device is improved, the tedious step of replacing a chuck is reduced, and the welding efficiency of subsequent argon arc welding is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor technical field especially is related to a small -size motor stator core double position automatic argon arc welding operation platform. BACKGROUND

[0002] In the motor manufacturing field, the stator core as the core component, its welding quality directly influences the performance and life of motor. Along with the aggravation of motor miniaturization, precision trend, the market puts forward higher request to the automation degree, welding precision and production efficiency of stator core welding, and argon arc welding becomes the primary choice process of small -size motor welding because of its small heat-affected zone and dense weld.

[0003] At present, the common argon arc welding operation device in the market is mostly designed for the fixation of single aperture stator core. These devices are usually equipped with special clamps or fixing mechanisms, which can only adapt to stator cores of specific size and shape. When welding stator cores of different apertures is required, the operator has to manually replace the clamps or adjust the fixing mechanisms to adapt to the new workpiece size. This process is not only tedious and time-consuming, but also prone to human error, affecting the welding precision.

[0004] More importantly, after replacing the stator core each time, the existing argon arc welding operation device often needs to redefine the parameters of the welding head, such as welding current, welding speed, welding gun height, etc. The setting of these parameters is crucial to the welding quality, but the adjustment process is extremely complex. The operator needs to adjust the welding head parameters gradually according to the new stator core size and material characteristics, combined with experience or test data, until the optimal welding effect is achieved. This process not only increases the preparation time before welding, but also may cause welding defects such as uneven weld, porosity, cracks, etc. due to improper parameter setting. SUMMARY

[0005] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a small -size motor stator core double position automatic argon arc welding operation platform, through the design effectively solves the existing welding table clamping assembly adjustment performance is poor, cannot according to the stator core of different models to adjust moderately, influence welding precision, even prone to welding defects problem.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: the utility model discloses a base, fixedly connected with the fixed frame on the base, the welding frame is slidably connected on the fixed frame, the welding table is slidably connected on the welding frame, and the welding head is fixedly connected on the welding table. A rotary shaft is provided below the welding head, the rotary shaft is rotatably connected with the support table, the support table is fixedly connected with the base, a centering clamp is provided on the rotary shaft, and the stator core is fixedly connected on the centering clamp.

[0007] The upper middle part of the stator core is provided with a cylindrical hole, a guard plate is fixedly connected to the rotary shaft of the side of the cylindrical hole, the centering holder extends into the cylindrical hole, and a plurality of fixed rods are synchronously extended and retracted outward on the centering holder and abut against the inner wall of the cylindrical hole.

[0008] Preferably, the centering holder comprises a first supporting rod, a second supporting rod and an adjusting supporting rod, the first supporting rod and the second supporting rod are arranged in parallel, one end of the first supporting rod and the second supporting rod is hinged to the rotary shaft, the other end of the first supporting rod and the second supporting rod is hinged to the fixed rod, the adjusting supporting rod is hinged to the middle part of the first supporting rod, the other end of the adjusting supporting rod is hinged to an adjusting sleeve, the adjusting sleeve is slidingly connected to the rotary shaft, a baffle is fixedly connected to the upper part, and a spring is slidingly connected to the rotary shaft between the baffle and the adjusting sleeve.

[0009] Preferably, a limiting clamping block is fixedly connected to the rotary shaft, a connecting rod is slidingly connected to the limiting clamping block, one end of the connecting rod is fixedly connected to the adjusting sleeve, the other end of the connecting rod is fixedly connected to a connecting clamping block, a supporting shaft is arranged on the side of the connecting clamping block, a clamping groove matched with the connecting clamping block is arranged on the supporting shaft, and a sliding table is rotatably connected to the supporting shaft.

[0010] Preferably, an adjusting shaft is slidingly connected to the supporting shaft, the clamping groove is located on the side of the adjusting shaft, a lead screw is screwedly connected to the adjusting shaft, and the lead screw is rotatably connected to the supporting shaft.

[0011] Preferably, a guide rod is fixedly connected to the fixed frame, the welding frame is slidingly connected to the guide rod, a belt wheel set is rotatably connected to the fixed frame, and the belt of the belt wheel set is fixedly connected to the welding frame.

[0012] Preferably, the welding table comprises a lifting block, the lifting block is slidingly connected to the welding frame, a first calibration block is fixedly connected to the lifting block, a second calibration block is slidingly connected to the first calibration block, and the welding head is fixedly connected to the second calibration block.

[0013] Preferably, a sliding rod is slidingly connected to the first calibration block and the second calibration block, and a calibration screw rod is screwedly connected to the first calibration block and the second calibration block.

[0014] Compared with the prior art, the utility model has the advantages of:

[0015] The utility model discloses a centering holder is installed on the rotary shaft, and the centering holder can fix different specifications of stator core, and makes the stator core rotate along with the rotary shaft, thereby improving the applicability of the device, reducing the cumbersome steps of replacing the chuck and improving the welding efficiency of subsequent argon arc welding.

[0016] The welding frame is connected with the welding head through the welding table, the vertical height and the front and back position of the welding head can be calibrated and adjusted through the welding table, after the stator core is replaced, the positioning parameters of the device do not need to be reset, the operation steps are simplified, and the construction personnel can operate conveniently. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole structure schematic view of the utility model.

[0018] Figure 2 It is a fixed frame connecting structure schematic view of the utility model.

[0019] Figure 3 It is a welding table connecting structure schematic view of the utility model.

[0020] Figure 4 It is a centering holder shaft side connecting structure schematic view of the utility model.

[0021] Figure 5 It is a centering holder forward structure schematic view of the utility model.

[0022] Figure 6 It is a support shaft section structure schematic view of the utility model.

[0023] The figure reference: 1, base; 2, fixed frame; 3, welding frame; 4, welding table; 5, welding head; 6, rotary shaft; 7, support table; 8, centering holder; 801, fixed rod; 802, first support rod; 803, second support rod; 804, adjusting support rod; 805, adjusting sleeve; 806, baffle; 807, spring; 808, limiting block; 809, connecting rod; 810, connecting block; 9, stator core; 10, guard plate; 11, support shaft; 12, clamping groove; 13, sliding table; 14, adjusting shaft; 15, screw rod; 16, guide rod; 17, pulley set; 18, lifting block; 19, first calibration block; 20, second calibration block; 21, sliding rod; 22, calibration screw rod. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments; based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the protection scope of the utility model.

[0025] Please refer to the drawings of the utility model Figures 1-6The embodiment is a double-position automatic argon arc welding operating table for small motor stator cores, which comprises a base 1, a fixed frame 2 fixedly connected to the base 1, a welding frame 3 slidably connected to the fixed frame 2, a welding table 4 slidably connected to the welding frame 3, a welding head 5 fixedly connected to the welding table 4, a rotary shaft 6 arranged below the welding head 5, a support table 7 rotatably connected to the rotary shaft 6, the support table 7 being fixedly connected to the base 1, a centering clamp 8 arranged on the rotary shaft 6, and a stator core 9 fixedly connected to the centering clamp 8.

[0026] A horizontal step is connected to the rear of the base 1, the fixed frame 2 is arranged above the step, the height of the fixed frame 2 is higher than that of the stator core, the welding frame 3 moves horizontally on the fixed frame 2, the welding head 5 on the welding table 4 moves in the left-right direction through the horizontal movement of the welding frame 3, so that the welding head 5 completes the welding of a weld on the stator core 9, the welding table 4 is vertically slidably connected to the welding frame 3, when welding is needed, the lifting assembly on the welding frame 3 drives the welding table 4 and the welding table 4 to move downward, so that the welding head 5 contacts the stator core 9, then the welding head 5 is uniformly and stably welded to the stator core 9 through the horizontal movement of the welding frame 3, after the welding is completed, the lifting assembly lifts the welding head 5 away from the stator core 9, the stator core 9 rotates under the action of the centering clamp 8 and the rotary shaft 6, then the lifting assembly on the welding frame 3 lowers the height of the welding table 4 again, and the welding work is performed, and the above process is repeated.

[0027] A cylindrical hole is arranged in the middle of the stator core 9, a guard plate 10 is fixedly connected to the rotary shaft 6 at the side of the cylindrical hole, the centering clamp 8 extends into the cylindrical hole, a plurality of fixed rods 801 synchronously extend outward from the centering clamp 8, and the fixed rods 801 abut against the inner wall of the cylindrical hole.

[0028] The centering clamp 8 is provided with four fixed rods 801, the four fixed rods 801 synchronously spread or gather around the axis of the rotary shaft 6, so that the centering clamp 8 has a larger adjustment range, the centering clamp 8 can be used for different models of stator cores 9, the axis of the welding head 5 is in the same longitudinal plane as the axis of the rotary shaft 6, no matter which specification of stator core 9 is fixed by the centering clamp 8, the axis of the welding head 5 always corresponds to the axis of the stator core 9, so that after the stator core 9 of different sizes is replaced, only the height of the welding head 5 from the core needs to be adjusted, the welding table 4 in the application has adjustment capabilities in the vertical direction and the front-rear direction, so that after the stator core 9 is replaced, the parameters of the whole device do not need to be changed, the operation steps for welding different specifications of stator cores 9 are simplified, and the welding efficiency of the stator core 9 is improved.

[0029] As Figure 5As shown, the first support rod 802, the second support rod 803, the rotating shaft 6 and the fixed rod 801 form a parallelogram mechanism, the adjusting rod 804 is hinged in the middle of the first support rod 802, the four adjusting rods 804 are connected to the same adjusting sleeve 805, the spring 807 on the rotating shaft 6 has an upward force on the adjusting sleeve 805, the stopper 806 on the rotating shaft 6 has an upward counterforce on the spring 807, the stopper 806 supports the spring 807, under the action of the spring 807, the adjusting sleeve 805 pulls the adjusting rod 804 upward, the adjusting rod 804 drives the first support rod 802 to rotate upward, the first support rod 802 drives the parallelogram formed thereby to move, under the drive of the adjusting rod 804, the four fixed rods 801 are in a retracted state in the initial state, at this time, the centering clamp 8 is conveniently inserted into the cylindrical hole of the iron core, when it is necessary to fix the stator iron core 9, it is necessary to insert the support shaft 11 into the other side of the cylindrical hole, after the support shaft 11 enters the cylindrical hole, the support shaft 11 moves leftward to contact the connecting block 810, after the two contact, the support shaft 11 continues to move leftward under the action of the sliding table 13, the connecting block compresses the spring 807 to one side through the connecting rod 809 and the adjusting sleeve 805, the adjusting sleeve 805 drives the first support rod 802 to overturn outward through the adjusting rod 804, so that the four fixed rods 801 are synchronously unfolded outward, until the four fixed rods 801 are tightly abutted against the side wall of the cylindrical hole, the side wall of the support shaft 11 has a clamping groove 12, the clamping groove 12 cooperates with the connecting block 810, the rotating shaft 6 is connected with a motor and a speed reducer, when the motor does not work, the rotating shaft 6 is fixed, when the support shaft 11 cooperates with the connecting block 810, the support shaft 11 can be rotated, so that the clamping groove 12 of the support shaft 11 cooperates with the connecting block 810.

[0030] Further, in order to protect the support shaft 11 and the connecting block to be well applicable to different lengths of the stator iron core 9, as shown, the middle part of the support shaft 11 is slidingly connected with an adjusting shaft 14, the adjusting shaft 14 can slide leftward and rightward under the action of a lead screw 15, when the length of the stator iron core 9 is relatively long, the adjusting shaft 14 can be moved leftward by rotating the lead screw 15, so that the clamping groove 12 at the end of the adjusting shaft 14 can cooperate with the connecting block 810. Figure 6

[0031] The guide rod 16 has two, the two guide rods 16 guide the leftward and rightward sliding of the welding frame 3, so as to protect the stability of the movement of the welding frame 3, the belt wheel set 17 is composed of two belt wheels and a connecting belt, one of the belt wheels is connected with a driving motor, the connecting belt is fixedly connected with the welding frame 3, the motor drives the belt wheel to rotate when working, the belt wheel drives the connecting belt to rotate, the movement of the connecting belt drives the welding frame 3 to slide along the guide rod 16.

[0032] ​The lifting block 18 on the welding table 4 can vertically lift relative to the welding frame 3, the initial point of the lifting block 18 on the welding frame 3 is the coordinate origin, the lifting height of the lifting block 18 is a constant value, the first calibration block 19 and the second calibration block 20 are used for small-range calibration adjustment of the welding position, and the first calibration block 19 and the second calibration block 20 are used for small-range calibration adjustment of the welding position. Figure 4 As shown in the figure, the first calibration block 19 and the second calibration block 20 are both provided with a sliding rod 21 and a calibration screw 22, wherein the sliding rod 21 is used for guiding and supporting, and the calibration screw 22 is used for moving and adjusting; when the diameter of the stator core 9 fixed in the centering clamp 8 becomes larger, the first calibration block 19 can be driven to move upward by the calibration screw 22, the first calibration block 19 drives the second calibration block 20 and the welding head 5 to move upward, so as to ensure that the device can be applied to different specifications of the stator core 9, and the adjustment mode of the second calibration block 20 is the same as that of the first calibration block 19.

[0033] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing detailed description of the present application is made with reference to the foregoing embodiments, for those skilled in the art, it can still be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the scope of the present application.

Claims

1. A dual-station automatic argon arc welding operating table for small motor stator cores, characterized in that: Includes a base (1), a fixed frame (2) fixedly connected to the base (1), a welding frame (3) slidably connected to the fixed frame (2), a welding table (4) slidably connected to the welding frame (3), a welding head (5) fixedly connected to the welding table (4), a rotating shaft (6) provided below the welding head (5), a support platform (7) rotatably connected to the rotating shaft (6), the support platform (7) fixedly connected to the base (1), a centering clamp (8) provided on the rotating shaft (6), and a stator core (9) fixedly connected to the centering clamp (8). The stator core (9) has a cylindrical hole in the middle. A guard plate (10) is fixedly connected to the rotating shaft (6) on the side of the cylindrical hole. The centering clamp (8) extends into the cylindrical hole. The centering clamp (8) has multiple fixing rods (801) that extend outward synchronously. The fixing rods (801) abut against the inner wall of the cylindrical hole.

2. The automatic argon arc welding operating table for a small motor stator core with dual stations according to claim 1, characterized in that: The centering clamp (8) includes a first support rod (802), a second support rod (803), and an adjusting support rod (804). The first support rod (802) and the second support rod (803) are placed parallel to each other. One end of the first support rod (802) and the second support rod (803) is hinged to the rotary shaft (6), and the other end of the first support rod (802) and the second support rod (803) is hinged to the fixed rod (801). The adjusting support rod (804) is hinged to the middle of the first support rod (802), and the other end of the adjusting support rod (804) is hinged to an adjusting sleeve (805). The adjusting sleeve (805) is slidably connected to the rotary shaft (6), and a baffle (806) is fixedly connected to it. A spring (807) is slidably connected to the rotary shaft (6) between the baffle (806) and the adjusting sleeve (805).

3. The small motor stator core dual-station automatic argon arc welding operating table according to claim 2, characterized in that: A limiting block (808) is fixedly connected to the rotary shaft (6). A connecting rod (809) is slidably connected inside the limiting block (808). One end of the connecting rod (809) is fixedly connected to the adjusting sleeve (805). The other end of the connecting rod (809) is fixedly connected to a connecting block (810). A support shaft (11) is provided on the side of the connecting block (810). A slot (12) that cooperates with the connecting block (810) is provided on the support shaft (11). A slide (13) is rotatably connected to the support shaft (11). The slide (13) is slidably connected to the base (1).

4. The automatic argon arc welding operating table for a small motor stator core with dual stations according to claim 3, characterized in that: An adjusting shaft (14) is slidably connected to the supporting shaft (11). The slot (12) is located on the side of the adjusting shaft (14). A lead screw (15) is threadedly connected to the adjusting shaft (14). The lead screw (15) is rotatably connected to the supporting shaft (11).

5. The automatic argon arc welding operating table for a small motor stator core with dual stations according to claim 1, characterized in that: A guide rod (16) is fixedly connected to the fixed frame (2), and the welding frame (3) is slidably connected to the guide rod (16). A pulley group (17) is rotatably connected to the fixed frame, and the belt of the pulley group (17) is fixedly connected to the welding frame (3).

6. A dual-station automatic argon arc welding operating table for a small motor stator core according to claim 1 or 5, characterized in that: The welding table (4) includes a lifting block (18), which is slidably connected to the welding frame (3). A first calibration block (19) is fixedly connected to the lifting block (18), and a second calibration block (20) is slidably connected inside the first calibration block (19). The welding head (5) is fixedly connected to the second calibration block (20).

7. The automatic argon arc welding operating table for a small motor stator core with dual stations according to claim 6, characterized in that: Both the first calibration block (19) and the second calibration block (20) are slidably connected with slide rods (21), and both the first calibration block (19) and the second calibration block (20) are threadedly connected with calibration screws (22).

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