Motor rotor spot welding device

Abstract

The utility model relates to a spot welding device for a motor rotor, which belongs to the technical field of spot welding devices and comprises a base, a U-shaped frame is fixed on the upper surface of the base through bolts, a first electric push rod is arranged on the upper surface of the U-shaped frame through a mounting frame, and a sliding block is slidably connected in the U-shaped frame. The outer side of an output shaft of the first electric push rod slidably penetrates through the U-shaped frame and extends into the U-shaped frame, and the outer side of the output shaft of the first electric push rod is fixedly connected with the upper surface of a sliding block. According to the spot welding device for the motor rotor, after the motor rotor is fixed, the second electric push rod is started to drive the spot welding gun to move downwards, spot welding can be conducted on the position, needing spot welding, of the motor rotor, and during welding, the induction position is recognized and fed back through the rotor spot welding induction device; the rotor shaft clamping component can rotate by a certain angle every time, so that the spot welding position is changed, one-circle welding is achieved, and the welding quality and efficiency can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to spot welding device technical field, concretely is a motor rotor spot welding device. BACKGROUND

[0002] Motor rotor is the part that rotates in the motor from the popular sense, it is a kind of device that can realize the conversion of electric energy and mechanical energy, spot welding technology is needed in the processing of motor rotor, so that the metal surface between the two reaches the combination between atoms, and can reach the significance of permanent connection.

[0003] When the motor rotor needs to be welded in the processing, the traditional welding method mainly includes manual welding, resistance welding and laser welding etc., these methods although meet the production demand to some extent, but there are still many deficiencies in welding efficiency, welding quality and stability, therefore we propose motor rotor spot welding device. UTILITY MODEL CONTENT

[0004] In view of the deficiency of prior art, the utility model provides a motor rotor spot welding device, has improved welding quality and efficiency and so on, solves the welding method mainly includes manual welding, resistance welding and laser welding etc., these methods although meet the production demand to some extent, but there are still many deficiencies in welding efficiency, welding quality and stability.

[0005] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: a motor rotor spot welding device, including base, the upper surface of base is fixed with U type frame through bolt, the upper surface of U type frame is provided with first electric push rod through mounting bracket, the inside of U type frame is connected with sliding block slidingly, the outside of first electric push rod output shaft slidingly penetrates U type frame and extends to the inside, the outside of first electric push rod output shaft is fixedly connected with the upper surface of sliding block, the front of U type frame is provided with welding mechanism, the front of sliding block is equipped with clamping mechanism;

[0006] The welding mechanism includes connecting block, second electric push rod, moving block, spot welding gun, support frame and rotor spot welding induction device, the connecting block is arranged at the front of U type frame, the second electric push rod is arranged at the lower surface of connecting block, the moving block is arranged at the outside of second electric push rod output shaft, the spot welding gun is arranged at the lower surface of moving block, the support frame is arranged on the upper surface of base, and the rotor spot welding induction device is arranged at one side of the front of support frame.

[0007] By adopting the technical scheme, the welding quality and efficiency are improved.

[0008] Further, the left and right side walls of the U-shaped frame inner cavity are provided with limiting sliding grooves, the left and right sides of the limiting sliding grooves are slidably connected with limiting blocks, and the opposite sides of the left and right limiting blocks are fixedly connected with the left and right sides of the sliding blocks.

[0009] By adopting the technical scheme, the sliding block can stably move up and down in the U-shaped frame, and the motor rotor after clamping and fixing is horizontally adjusted in height.

[0010] Further, the limiting block and the gap of the limiting sliding groove are matched, and the limiting block moves linearly up and down in the limiting sliding groove.

[0011] By adopting the technical scheme, the stability of the up and down movement of the sliding block can be improved through the cooperation between the limiting block and the limiting sliding groove.

[0012] Further, the clamping mechanism comprises a plug-in sleeve, a driving motor, a moving port, an arc-shaped abutting block, a U-shaped frame and a third electric push rod, the plug-in sleeve is rotatably connected to the front face of the sliding block through a bearing, the driving motor is arranged on the back face of the sliding block, the back face of the plug-in sleeve is rotatably penetrated through the sliding block and fixedly connected with the outer side of the output shaft of the driving motor, and the moving port is penetrated and arranged on the lower surface of the plug-in sleeve.

[0013] By adopting the technical scheme, the one end of the motor rotor shaft can be clamped and fixed through the clamping mechanism, and the one end can be rotated at the same time.

[0014] Further, the arc-shaped abutting block is slidably connected in the moving port, the U-shaped frame is arranged on the lower surface of the plug-in sleeve, the third electric push rod is arranged on the bottom wall of the U-shaped frame inner cavity, and the outer side of the output shaft of the third electric push rod is fixedly connected with the lower surface of the arc-shaped abutting block.

[0015] By adopting the technical scheme, the arc-shaped abutting block can move up and down in the moving port.

[0016] Further, the connecting block is located on the longitudinal central axis of the U-shaped frame.

[0017] By adopting the technical scheme, the stability of the up and down movement of the spot welding gun is improved.

[0018] Further, the right side of the front face of the U-shaped frame is provided with a pipe frame, and the pipe frame is fixedly provided with a protective gas outlet pipe in the inside.

[0019] By adopting the technical scheme, the output of the protective gas through the protective gas outlet pipe can improve the welding quality and penetration.

[0020] Further, the shape of the sliding block is a hollow rectangular body.

[0021] By adopting the technical scheme, the weight of the sliding block can be reduced, and the manufacturing cost can be reduced.

[0022] Compared with the prior art, the technical scheme of the application has the following beneficial effects:

[0023] 1. The motor rotor spot welding device can fix the motor rotor, start the second electric push rod to drive the spot welding gun to move downward, and spot weld the position of the motor rotor that needs to be spot welded. When welding, the rotor spot welding induction device is used for position recognition and feedback, so that the rotor shaft clamping part can rotate by a certain angle each time, thereby changing the spot welding position and realizing one circle of welding, thereby improving the welding quality and efficiency.

[0024] 2. The motor rotor spot welding device can insert one end of the motor rotor shaft that needs to be welded into the inside of the insertion sleeve, and the insertion sleeve can be designed to match the gap of one end of the motor rotor shaft. Then, the third electric push rod is started to drive the arc-shaped abutting block to move upward in the moving port. When the arc-shaped abutting block moves upward, the upper surface of the arc-shaped abutting block can abut against the lower surface of one end of the motor rotor shaft, so that one end of the motor rotor shaft is fixed in the inside of the insertion sleeve, realizing the fixation of the motor rotor during welding and improving the stability of welding. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a structural schematic view of the utility model;

[0026] Figure 2 It is a welding mechanism schematic view of the utility model;

[0027] Figure 3 It is a clamping mechanism schematic view of the utility model;

[0028] Figure 4 It is a connection structure schematic view of the driving motor and the sliding block of the utility model.

[0029] In the figure: 1, base; 2, U-shaped frame; 3, first electric push rod; 4, sliding block; 5, welding mechanism; 51, connecting block; 52, second electric push rod; 53, moving block; 54, spot welding gun; 55, support frame; 56, rotor spot welding induction device; 6, clamping mechanism; 61, insertion sleeve; 62, driving motor; 63, moving port; 64, arc-shaped abutting block; 65, U-shaped frame; 66, third electric push rod. DETAILED DESCRIPTION

[0030] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0031] Please refer to Figure 1 The motor rotor spot welding device in the embodiment comprises a base 1, the upper surface of the base 1 is fixed with a U-shaped frame 2 through bolts, the upper surface of the U-shaped frame 2 is provided with a first electric push rod 3 through a mounting frame, the inside of the U-shaped frame 2 is slidably connected with a sliding block 4, the outside of the output shaft of the first electric push rod 3 is slidably penetrated through the U-shaped frame 2 and extends to the inside, the outside of the output shaft of the first electric push rod 3 is fixedly connected with the upper surface of the sliding block 4, the front surface of the U-shaped frame 2 is provided with a welding mechanism 5, the welding mechanism 5 can improve the welding quality and efficiency, the front surface of the sliding block 4 is provided with a clamping mechanism 6, the clamping mechanism 6 realizes the fixation of the motor rotor during welding, and the stability of welding is improved.

[0032] In the embodiment, the left and right side walls of the inner cavity of the U-shaped frame 2 are both provided with limiting sliding grooves, the inside of the left and right side limiting sliding grooves is both slidably connected with a limiting block, the opposite side of the left and right side limiting blocks is both fixedly connected with the left and right sides of the sliding block 4, the gap between the limiting block and the limiting sliding groove is matched, the limiting block moves linearly up and down in the inside of the limiting sliding groove, the right side of the front surface of the U-shaped frame 2 is provided with a pipe frame, the inside of the pipe frame is fixedly connected with a protective gas outlet pipe, the shape of the sliding block 4 is a hollow rectangular body, the right side of the protective gas outlet pipe can be connected with an external oxygen tank, oxygen is discharged through the left side of the protective gas outlet pipe during welding, the welding quality and penetration can be improved, the sliding block 4 can be driven to move up and down by starting the first electric push rod 3, and the horizontal height of the sliding block 4 can be adjusted.

[0033] Please refer to Figure 2 In order to improve the welding quality and efficiency, the welding mechanism 5 in the embodiment comprises a connecting block 51, a second electric push rod 52, a moving block 53, a spot welding gun 54, a support frame 55 and a rotor spot welding induction device 56, the connecting block 51 is arranged on the front surface of the U-shaped frame 2, the second electric push rod 52 is arranged on the lower surface of the connecting block 51, the moving block 53 is arranged on the outside of the output shaft of the second electric push rod 52, the spot welding gun 54 is arranged on the lower surface of the moving block 53, the support frame 55 is arranged on the upper surface of the base 1, and the rotor spot welding induction device 56 is arranged on one side of the front surface of the support frame 55.

[0034] In the embodiment, the connecting block 51 is located on the longitudinal central axis of the U-shaped frame 2.

[0035] It should be noted that one end of the motor rotor shaft to be welded can be inserted into the inside of the splicing barrel 61, and the splicing barrel 61 can be designed to match the gap of the one end of the motor rotor shaft, then the third electric push rod 66 is started to drive the arc-shaped abutting block 64 to move upward in the inside of the moving port 63, when the arc-shaped abutting block 64 moves upward, the upper surface of the arc-shaped abutting block 64 can abut the lower surface of the one end of the motor rotor shaft, so that the one end of the motor rotor shaft is fixed in the inside of the splicing barrel 61, realizing the fixation of the motor rotor during welding, and improving the stability of welding.

[0036] In the embodiment, the motor rotor is one of the core components in the motor, which is responsible for converting electrical energy into mechanical energy to achieve the purpose of rotation. Under the action of the magnetic field generated by the stator, the motor rotor generates induced electromotive force and current in the rotor winding through electromagnetic induction principle, thereby forming electromagnetic torque to drive the rotor to rotate. The motor rotor is usually composed of a shaft, a rotor core, a magnetic steel and a balance plate, and is widely used in fields such as automobile engines, industrial refrigerators, snow blowers, clean air supply in food industry and medical devices.

[0037] In the embodiment, the rotor spot welding induction device 56 is provided with a laser sensor, which uses a laser beam and a photoelectric detector to obtain information such as the position, height and width of the weld, and realizes one circle of welding.

[0038] Please refer to Figures 3-4 In order to realize the fixation of the motor rotor during welding and improve the stability of welding, in the embodiment, the clamping mechanism 6 includes a splicing barrel 61, a driving motor 62, a moving port 63, an arc-shaped abutting block 64, a U-shaped frame 65 and a third electric push rod 66. The splicing barrel 61 is rotatably connected to the front surface of the sliding block 4 through a bearing, the driving motor 62 is arranged on the back surface of the sliding block 4, the back surface of the splicing barrel 61 penetrates through the sliding block 4 and is fixedly connected with the outer side of the output shaft of the driving motor 62, the moving port 63 is penetrated and arranged on the lower surface of the splicing barrel 61, the splicing barrel 61 is in the shape of a hollow cylinder with a missing front surface, one end of the motor rotor can be inserted into the inside of the splicing barrel 61, and after the one end of the motor rotor is inserted into the inside of the splicing barrel 61, the position to be welded is located directly below the spot welding gun 54, and the position to be welded of the motor rotor can be welded by moving the spot welding gun 54 downward.

[0039] In the embodiment, the arc-shaped abutting block 64 is slidably connected in the inside of the moving port 63, the U-shaped frame 65 is arranged on the lower surface of the splicing barrel 61, and the third electric push rod 66 is arranged on the bottom wall of the inner cavity of the U-shaped frame 65. The outer side of the output shaft of the third electric push rod 66 is fixedly connected with the lower surface of the arc-shaped abutting block 64. By starting the driving motor 62, the clamped and fixed motor rotor can be driven to rotate, and combined with the rotor spot welding induction device 56, one circle of welding can be realized.

[0040] It should be noted that after the motor rotor is fixed, the second electric push rod 52 is started to drive the spot welding gun 54 to move downward, and the positions of the motor rotor that need to be spot welded can be spot welded. When welding, the rotor spot welding induction device 56 is used for induction position recognition and feedback, so that the rotor shaft clamping part can rotate a certain angle each time, thereby changing the spot welding position, thereby realizing one circle of welding, and further improving the welding quality and efficiency.

[0041] The working principle of the above embodiment is:

[0042] (1) The end of the motor rotor shaft that needs to be welded can be inserted into the inside of the plug-in barrel 61, and the plug-in barrel 61 can be designed to cooperate with the gap of the end of the motor rotor shaft, then the third electric push rod 66 is started to drive the arc-shaped abutment block 64 to move upward in the moving port 63. When the arc-shaped abutment block 64 moves upward, the upper surface of the arc-shaped abutment block 64 can abut the lower surface of the end of the motor rotor shaft, so that the end of the motor rotor shaft is fixed in the inside of the plug-in barrel 61, realizing the fixation of the motor rotor during welding, and improving the stability of welding.

[0043] (2) After the motor rotor is fixed, the second electric push rod 52 is started to drive the spot welding gun 54 to move downward, and the positions of the motor rotor that need to be spot welded can be spot welded. When welding, the rotor spot welding induction device 56 is used for induction position recognition and feedback, so that the rotor shaft clamping part can rotate a certain angle each time, thereby changing the spot welding position, thereby realizing one circle of welding, and further improving the welding quality and efficiency.

Claims

1. A motor rotor spot welding device comprising a base (1), characterized in that: The upper surface of the base (1) is fixed with a U-shaped frame (2) through bolts, the upper surface of the U-shaped frame (2) is provided with a first electric push rod (3) through a mounting frame, the inside of the U-shaped frame (2) is slidably connected with a sliding block (4), the outside of the output shaft of the first electric push rod (3) slidably penetrates the U-shaped frame (2) and extends to the inside, the outside of the output shaft of the first electric push rod (3) is fixedly connected with the upper surface of the sliding block (4), the front surface of the U-shaped frame (2) is provided with a welding mechanism (5), and the front surface of the sliding block (4) is provided with a clamping mechanism (6). The welding mechanism (5) comprises a connecting block (51), a second electric push rod (52), a moving block (53), a spot welding gun (54), a support frame (55) and a rotor spot welding induction device (56), the connecting block (51) is arranged on the front surface of the U-shaped frame (2), the second electric push rod (52) is arranged on the lower surface of the connecting block (51), the moving block (53) is arranged on the outside of the output shaft of the second electric push rod (52), the spot welding gun (54) is arranged on the lower surface of the moving block (53), the support frame (55) is arranged on the upper surface of the base (1), and the rotor spot welding induction device (56) is arranged on one side of the front surface of the support frame (55).

2. A motor rotor spot welding device as claimed in claim 1, characterized in that: The left and right side walls of the inner cavity of the U-shaped frame (2) are both provided with limiting sliding grooves, the inside of the limiting sliding grooves on the left and right sides is slidably connected with a limiting block, and the opposite side of the limiting block on the left and right sides is fixedly connected with the left and right sides of the sliding block (4).

3. A motor rotor spot welding device as claimed in claim 2, characterised in that: The gap between the limiting block and the limiting sliding groove is matched, and the limiting block moves linearly upwards and downwards in the limiting sliding groove.

4. A motor rotor spot welding device as defined in claim 1, wherein: The clamping mechanism (6) comprises a plug-in barrel (61), a driving motor (62), a moving port (63), an arc-shaped abutment block (64), a U-shaped frame (65) and a third electric push rod (66), the plug-in barrel (61) is rotatably connected to the front surface of the sliding block (4) through a bearing, the driving motor (62) is arranged on the back surface of the sliding block (4), the back surface of the plug-in barrel (61) rotatably penetrates the sliding block (4) and is fixedly connected with the outside of the output shaft of the driving motor (62), and the moving port (63) penetrates the lower surface of the plug-in barrel (61).

5. A motor rotor spot welding device as claimed in claim 4, characterised in that: The arc-shaped abutment block (64) is slidably connected in the inside of the moving port (63), the U-shaped frame (65) is arranged on the lower surface of the plug-in barrel (61), the third electric push rod (66) is arranged on the bottom wall in the inner cavity of the U-shaped frame (65), and the outside of the output shaft of the third electric push rod (66) is fixedly connected with the lower surface of the arc-shaped abutment block (64).

6. A motor rotor spot welding device as defined in claim 1, wherein: The connecting block (51) is located on the longitudinal central axis of the U-shaped frame (2).

7. A motor rotor spot welding device as defined in claim 1, wherein: A pipe frame is arranged on the right side of the front surface of the U-shaped frame (2), and a protection gas outlet pipe is fixedly arranged in the inside of the pipe frame.

8. A motor rotor spot welding device as defined in claim 1, wherein: The sliding block (4) is in the shape of a hollow rectangular body.

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