Spot welding device for manufacturing linear motor

Abstract

The utility model belongs to the technical field of spot welding devices, and particularly relates to a spot welding device for manufacturing a linear motor, which comprises an air reservoir, a piston plate slidably mounted in the air reservoir, a connecting rod mounted on the top side of the piston plate, a turntable mounted on the outer side of one end of a rotating shaft, and a convex rod mounted on the edge of one side of the turntable. A connecting plate is movably installed on the outer side of the protruding rod, an air inlet pipe is connected to one side of the bottom end of the air storage cylinder, and an air blowing pipe is connected to the bottom side of the air storage cylinder. When the rotating disc continues to rotate, the relative positions of the protruding rod and the connecting plate are changed, the mounting base and the connecting rod move downwards, the piston plate slides downwards in the air storage cylinder, and the piston plate slides downwards in the air storage cylinder. And gas in the gas storage cylinder is blown to the spot welding position through the gas blowing pipe, so that blowing cooling of the spot welding position is realized, and the manufacturing quality of the direct current motor is effectively improved.

Description

TECHNICAL FIELD

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

[0002] In the production and manufacturing process of the direct current motor, the winding and the commutator need good electrical connection, through spot welding, the connection resistance between the outgoing line of the winding and the commutator sheet can be ensured to be small, and energy loss is reduced, so a spot welding device needs to be used.

[0003] A kind of spot welding device is disclosed in one Chinese patent with authorized announcement number CN114888403A;Including spot welding machine, spot welding head and fixed plate etc., fixed plate is equipped on the front upper side of spot welding machine, fixed plate is equipped with spot welding head for carrying out spot welding work, spot welding head is connected with spot welding machine.By partition and cover plate, the front side and top of linear motor can be covered, so that the arc spark generated during electric welding work can be blocked, to avoid splashing everywhere, at the same time, dust can be avoided from splashing out and excessive noise from being generated.

[0004] But the spot welding machine still has some problems, in the spot welding process, welding point will accumulate a lot of heat, too high temperature can have negative effect on the material performance of motor, cause motor winding to lose insulation performance, thereby the manufacturing quality and service life of direct current motor will be reduced;Therefore, aiming at the above problems, a spot welding device for linear motor manufacturing is proposed. SUMMARY

[0005] In order to make up for the deficiencies of the prior art, solve the problems raised in the background art, the utility model provides a spot welding device for linear motor manufacturing.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A spot welding device for manufacturing linear motors according to this utility model includes a base plate, a fixing frame mounted on the top side of the base plate, a cylinder mounted on the top side of the fixing frame, a mounting plate mounted on the working end of the cylinder, a support plate mounted on one side of the mounting plate, an air storage cylinder mounted on the bottom side of the support plate, a piston plate slidably mounted inside the air storage cylinder, a connecting rod mounted on the top side of the piston plate, the top end of the connecting rod movably penetrating the support plate and mounting a mounting seat thereon, and a fixing plate mounted on one side of the support plate. A rotating shaft is rotatably mounted inside the fixed plate. A turntable is mounted on the outer side of one end of the rotating shaft. A protruding rod is mounted on one edge of the turntable. A connecting plate is movably mounted on the outer side of the protruding rod. The bottom end of the connecting plate is mounted inside the mounting base via a pin. An air inlet pipe is connected to one side of the bottom end of the air storage cylinder. An air inlet valve is fitted on the outer side of the air inlet pipe. An air blowing pipe is connected to the bottom side of the air storage cylinder. An air outlet valve is fitted on the outer side of one end of the air blowing pipe. Through the air storage cylinder, piston plate, and other components, air blowing and cooling of the spot welding position is achieved, effectively improving the manufacturing quality of the DC motor.

[0007] Preferably, each of the four corners of the bottom side of the mounting plate is fixed with a fixing rod, and a movable plate is slidably mounted on the outer side of the fixing rod. Tension springs are fixed to the top side of the movable plate and the four corners of the bottom side of the mounting plate, and the tension springs are sleeved on the outer side of the fixing rods. A spot welding machine is mounted on the bottom side of the movable plate, and one end of the air pipe is mounted on the outer side of the spot welding machine. A support frame is mounted on the other side of the mounting plate, and a drive motor is assembled inside the support frame. A rotating shaft is mounted on the output end of the drive motor, and a cam is mounted on the outer side of the rotating shaft. When the cam moves, its protruding position contacts the movable plate. Through the rotation of the cam, the movable plate and the spot welding machine are driven to move up and down, thereby facilitating continuous welding operations on the DC motor.

[0008] Preferably, a drive wheel is installed at one end of the rotating shaft, and a driven wheel is installed on the outer side of one end of the rotating shaft. The drive wheel and the driven wheel are connected by a belt to ensure that the spot welding action and the air blowing action are performed synchronously, thus ensuring effective air cooling of the spot welding position of the DC motor.

[0009] Preferably, a servo motor is installed on one side of the bottom of the fixing frame, and a mounting cavity is installed at the output end of the servo motor. A first motor is installed on one side of the mounting cavity, and a disc is installed at the output end of the first motor. Three arc-shaped grooves are equally spaced inside the disc, and a slide rod is slidably installed inside each arc-shaped groove. Three sliding slots are equally spaced inside one side of the mounting cavity, and a fixing clamp is slidably installed inside each sliding slot. One end of each slide rod is fixed to one side of the fixing clamp. Through the cooperation of the servo motor and the first motor, the clamping and rotation of DC motors of different sizes are realized, which facilitates comprehensive electric welding operations on the motors.

[0010] Preferably, the base plate has an upward-opening groove inside, and a telescopic rod is installed inside the groove. A support seat is installed at the working end of the telescopic rod. By adjusting the telescopic rod, the position and height of the DC motor can be easily adjusted to the center position of the mounting cavity, so that the fixing clamp can fix and clamp the output shaft of the DC motor.

[0011] Preferably, a control panel is installed on one side of the base plate. The control panel is used to operate and control the electrical components inside the device, realizing centralized control of the electrical components inside the device and improving the ease of operation.

[0012] The advantages of this utility model are:

[0013] 1. As the turntable rotates, the protruding rod pulls the mounting base and connecting rod upward through the connecting plate, thereby causing the piston plate to slide upward in the air storage cylinder. When the piston plate moves upward, a negative pressure is formed in the air storage cylinder, and external gas enters the air storage cylinder through the air inlet pipe. When the turntable continues to rotate, the relative position of the protruding rod and the connecting plate changes, the mounting base and connecting rod move downward, and the piston plate slides downward in the air storage cylinder. The gas in the air storage cylinder is blown to the spot welding position through the air blowing pipe to achieve air blowing and cooling of the spot welding position, which effectively improves the manufacturing quality of the DC motor.

[0014] 2. When the drive motor of this utility model starts, its output end drives the rotating shaft to rotate. The cam rotates with the rotating shaft. When the cam's convex position contacts the movable plate, it pushes the movable plate to move downward. The movable plate slides downward along the fixed rod, and at the same time, the tension spring is stretched, and the spot welding machine moves downward to perform spot welding on the DC motor welding position. When the cam's convex position moves away from the contact position with the movable plate, the elastic force of the tension spring causes the movable plate and the spot welding machine to return to their original positions, ready for the next spot welding. Through the continuous rotation of the cam, the movable plate and the spot welding machine are driven to move up and down reciprocally, realizing continuous spot welding operation. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the intermediate axis side view of the present invention;

[0017] Figure 2 This is a cross-sectional structural diagram of the spot welding device.

[0018] Figure 3 This is a schematic diagram of the first partial structure of the upper part of the spot welding device;

[0019] Figure 4 This is a schematic diagram of the second partial structure of the upper part of the spot welding device;

[0020] Figure 5 This is a schematic diagram of the output shaft fixing assembly of the DC motor in the spot welding device.

[0021] In the diagram: 1. Base plate; 2. Fixing frame; 3. Cylinder; 4. Mounting plate; 5. Support plate; 6. Air tank; 7. Piston plate; 8. Connecting rod; 9. Mounting seat; 10. Fixing plate; 11. Rotating shaft; 12. Turntable; 13. Protruding rod; 14. Connecting plate; 15. Air inlet pipe; 16. Air inlet valve; 17. Air blowing pipe; 18. Air outlet valve; 19. Fixing rod; 20. Movable plate; 21. Tension spring 22. Spot welding machine; 23. Support frame; 24. Drive motor; 25. Rotary shaft; 26. Cam; 27. Drive wheel; 28. Driven wheel; 29. ​​Belt; 30. Servo motor; 31. Mounting cavity; 32. Motor No. 1; 33. Disc; 34. Arc groove; 35. Slide rod; 36. Slide groove; 37. Fixing clamp; 38. Groove; 39. Telescopic rod; 40. Support base; 41. Control panel. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0023] Please see Figures 1-4As shown, a spot welding device for manufacturing linear motors includes a base plate 1. A fixing frame 2 is mounted on the top side of the base plate 1. A cylinder 3 is mounted on the top side of the fixing frame 2. A mounting plate 4 is mounted on the actuating end of the cylinder 3. A support plate 5 is mounted on one side of the mounting plate 4. An air storage cylinder 6 is mounted on the bottom side of the support plate 5. A piston plate 7 is slidably mounted inside the air storage cylinder 6. A connecting rod 8 is mounted on the top side of the piston plate 7. The top end of the connecting rod 8 movably passes through the support plate 5 and is mounted with a mounting seat 9. A fixing plate 10 is mounted on one side of the support plate 5. A rotating shaft 11 is rotatably mounted inside the fixed plate 10. A turntable 12 is mounted on the outer side of one end of the rotating shaft 11. A protruding rod 13 is mounted on one edge of the turntable 12. A connecting plate 14 is movably mounted on the outer side of the protruding rod 13. The bottom end of the connecting plate 14 is mounted inside the mounting base 9 through a pin. An air inlet pipe 15 is connected to one side of the bottom end of the air storage cylinder 6. An air inlet valve 16 is fitted on the outer side of the air inlet pipe 15. An air blowing pipe 17 is connected to the bottom side of the air storage cylinder 6. An air outlet valve 18 is fitted on the outer side of one end of the air blowing pipe 17.

[0024] The mounting plate 4 has four fixed rods 19 fixed at the bottom corners. A movable plate 20 is slidably mounted on the outside of the fixed rods 19. Tension springs 21 are fixed to the top of the movable plate 20 and the four bottom corners of the mounting plate 4. The tension springs 21 are sleeved on the outside of the fixed rods 19. A spot welding machine 22 is mounted on the bottom of the movable plate 20. One end of the air pipe 17 is mounted on the outside of the spot welding machine 22. A support frame 23 is mounted on the other side of the mounting plate 4. A drive motor 24 is assembled inside the support frame 23. A rotating shaft 25 is mounted on the output end of the drive motor 24. A cam 26 is mounted on the outside of the rotating shaft 25. When the cam 26 moves, its protruding position will contact the movable plate 20.

[0025] One end of the rotating shaft 25 is equipped with a drive wheel 27, and the outer side of one end of the rotating shaft 11 is equipped with a driven wheel 28. The drive wheel 27 and the driven wheel 28 are connected by a belt 29. A control panel 41 is installed on one side of the base plate 1. During operation, a large amount of heat will accumulate at the welding point during spot welding. Excessive temperature will negatively affect the material properties of the motor, causing the motor windings to lose their insulation performance, thereby reducing the manufacturing quality and service life of the DC motor. After the DC motor is fixed, the cylinder 3 is activated as needed. The working end of the cylinder 3 drives the mounting plate 4 and the spot welding machine 22 to move downward to a suitable position, that is, after the convex position of the cam 26 contacts the movable plate 20, the spot welding machine 22 can connect with the spot welding position on the DC motor. Upon contact, the drive motor 24 starts, and its output drives the rotating shaft 25 to rotate. The cam 26 rotates with the rotating shaft 25. When the convex position of the cam 26 contacts the movable plate 20, it pushes the movable plate 20 to move downward. The movable plate 20 slides downward along the fixed rod 19, and at the same time, the tension spring 21 is stretched. At this time, the spot welding machine 22 moves downward to perform spot welding on the DC motor welding position. When the convex position of the cam 26 moves away from the contact position with the movable plate 20, the elastic force of the tension spring 21 causes the movable plate 20 and the spot welding machine 22 to return to their original positions, ready for the next spot welding. Through the continuous rotation of the cam 26, the movable plate 20 and the spot welding machine 22 are driven to move up and down reciprocally to achieve continuous spot welding operation. The specific model of the spot welding machine 22 is DN-25.

[0026] Simultaneously, the drive wheel 27 rotates with the rotating shaft 25, and the drive wheel 27 drives the driven wheel 28 and the rotating shaft 11 to rotate via the belt 29. The protruding rod 13 rotates with the turntable 12, and pulls the mounting base 9 and the connecting rod 8 upward through the connecting plate 14, thereby driving the piston plate 7 to slide upward in the air storage cylinder 6. When the piston plate 7 moves upward, a negative pressure is formed in the air storage cylinder 6, the air inlet valve 16 opens, and the air outlet valve 18 closes. External gas enters the air storage cylinder 6 through the air inlet pipe 15. When the turntable 12 continues to rotate, the relative position of the protruding rod 13 and the connecting plate 14 changes, the mounting base 9 and the connecting rod 8 move downward, and the piston plate 7 slides downward in the air storage cylinder 6. At this time, the air inlet valve 16 closes and the air outlet valve 18 opens. The gas in the air storage cylinder 6 is blown to the spot welding position through the air blowing pipe 17 to achieve air cooling of the spot welding position, which effectively improves the manufacturing quality of the DC motor, and at the same time ensures that the spot welding action and the air blowing action are carried out synchronously, ensuring effective air cooling of the spot welding position of the DC motor.

[0027] Please see Figure 1 , 2As shown in Figure 5, a servo motor 30 is installed on one side of the bottom end of the fixed frame 2. The output end of the servo motor 30 is equipped with a mounting cavity 31. A first motor 32 is installed on one side of the mounting cavity 31. A disc 33 is installed on the output end of the first motor 32. Three arc-shaped grooves 34 are equally spaced inside the disc 33. A slide rod 35 is slidably installed inside each arc-shaped groove 34. Three sliding grooves 36 are equally spaced inside one side of the mounting cavity 31. A fixed clamping plate 37 is slidably installed inside the sliding groove 36. One end of each slide rod 35 is fixed to one side of the fixed clamping plate 37.

[0028] The base plate 1 has an upward-opening groove 38 inside, and a telescopic rod 39 is installed inside the groove 38. The working end of the telescopic rod 39 is equipped with a support base 40. During operation, in the manufacturing process of the DC motor, a good electrical connection is required between the winding and the commutator. Spot welding can ensure that the connection resistance between the winding lead wire and the commutator segment is small, reducing energy loss. Therefore, a spot welding device is required. In order to perform electric welding on the DC motor, the DC motor is first placed on the support base 40. The control panel 41 is operated to control the telescopic rod 39. The working end of the telescopic rod 39 extends or retracts, driving the support base 40 to rise or fall. By adjusting the length of the telescopic rod 39, the position height of the DC motor is adjusted to the center position of the mounting cavity 31, which facilitates the fixing clamp 37 to fix and clamp the output shaft of the DC motor.

[0029] Then, the first motor 32 is started, and its output end drives the disc 33 to rotate. The slide rod 35 in the arc groove 34 inside the disc 33 rotates with the disc 33. When the slide rod 35 slides in the arc groove 34, it will drive the fixed clamping plate 37 to move radially in the slide groove 36, so that the three fixed clamping plates 37 can move closer or further away from each other, thereby realizing the clamping of DC motors of different sizes.

[0030] When a full-scale welding operation is required on a DC motor, the servo motor 30 is started, and the mounting cavity 31 drives the output shaft of the clamped DC motor to rotate, so that different parts of the motor can be in the spot welding position in sequence, thereby enabling a full-scale welding operation on the DC motor. It should be noted that after the servo motor 30 rotates 360 degrees, it needs to be reversed to drive the next DC motor to rotate, so as to avoid tangling of the power cord of the first motor 32.

[0031] Working principle: First, place the DC motor on the support base 40, operate the control panel 41 to control the telescopic rod 39 to work. The working end of the telescopic rod 39 extends or retracts, driving the support base 40 to rise or fall. By adjusting the length of the telescopic rod 39, the position height of the DC motor is adjusted to the center position of the mounting cavity 31, so that the fixing plate 37 can fix and clamp the output shaft of the DC motor.

[0032] Then, the first motor 32 is started, and its output end drives the disc 33 to rotate. The slide rod 35 in the arc groove 34 inside the disc 33 rotates with the disc 33. When the slide rod 35 slides in the arc groove 34, it will drive the fixed clamping plate 37 to move radially in the slide groove 36, so that the three fixed clamping plates 37 can move closer or further away from each other, thereby realizing the clamping of DC motors of different sizes.

[0033] After the DC motor is fixed, cylinder 3 is activated as needed. The actuating end of cylinder 3 drives the mounting plate 4 and the spot welding machine 22 to move downwards to a suitable position, that is, after the protruding position of cam 26 contacts the movable plate 20, the spot welding machine 22 can contact the spot welding position on the DC motor. Then, the drive motor 24 is started, and its output end drives the rotating shaft 25 to rotate. Cam 26 rotates with the rotating shaft 25. When the protruding position of cam 26 contacts the movable plate 20, it pushes the movable plate 20 downwards. The movable plate 20 moves along the fixed... When rod 19 slides downward, tension spring 21 is stretched, and spot welding machine 22 moves downward to perform spot welding on the DC motor welding position. When the convex position of cam 26 rotates away from the contact position with movable plate 20, the elastic force of tension spring 21 causes movable plate 20 and spot welding machine 22 to return to their original positions, ready for the next spot welding. Through the continuous rotation of cam 26, movable plate 20 and spot welding machine 22 are driven to move up and down reciprocally to achieve continuous spot welding operation. The specific model of spot welding machine 22 is DN-25.

[0034] Simultaneously, the drive wheel 27 rotates with the shaft 25, and the drive wheel 27 drives the driven wheel 28 and the shaft 11 to rotate via the belt 29. The protruding rod 13 rotates with the turntable 12, and pulls the mounting base 9 and the connecting rod 8 upward through the connecting plate 14, thereby driving the piston plate 7 to slide upward in the air storage cylinder 6. When the piston plate 7 moves upward, a negative pressure is formed in the air storage cylinder 6, the air inlet valve 16 opens, and the air outlet valve 18 closes. External gas enters the air storage cylinder 6 through the air inlet pipe 15. When the turntable 12 continues to rotate, the relative position of the protruding rod 13 and the connecting plate 14 changes, the mounting base 9 and the connecting rod 8 move downward, and the piston plate 7 slides downward in the air storage cylinder 6. At this time, the air inlet valve 16 closes and the air outlet valve 18 opens. The gas in the air storage cylinder 6 is blown to the spot welding position through the air blowing pipe 17 to achieve air cooling of the spot welding position, which effectively improves the manufacturing quality of the DC motor, and at the same time ensures that the spot welding action and the air blowing action are carried out synchronously, ensuring effective air cooling of the spot welding position of the DC motor.

[0035] When a full-scale welding operation is required on a DC motor, the servo motor 30 is started, and the mounting cavity 31 drives the output shaft of the clamped DC motor to rotate, so that different parts of the motor can be in the spot welding position in sequence, thereby enabling a full-scale welding operation on the DC motor. It should be noted that after the servo motor 30 rotates 360 degrees, it needs to be reversed to drive the next DC motor to rotate, so as to avoid tangling of the power cord of the first motor 32.

[0036] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A spot welding device for manufacturing linear motors, characterized in that: Includes a base plate (1), a fixing frame (2) is installed on the top side of the base plate (1), a cylinder (3) is installed on the top side of the fixing frame (2), an mounting plate (4) is installed on the working end of the cylinder (3), a support plate (5) is installed on one side of the mounting plate (4), an air storage cylinder (6) is installed on the bottom side of the support plate (5), a piston plate (7) is slidably installed inside the air storage cylinder (6), a connecting rod (8) is installed on the top side of the piston plate (7), the top end of the connecting rod (8) moves through the support plate (5) and is installed with a mounting seat (9), a fixing plate (10) is installed on one side of the support plate (5), and the fixing plate (10) The internal rotating part of the gas storage cylinder (6) is equipped with a rotating shaft (11). A turntable (12) is installed on the outer side of one end of the rotating shaft (11). A protruding rod (13) is installed on one side edge of the turntable (12). A connecting plate (14) is movably installed on the outer side of the protruding rod (13). The bottom end of the connecting plate (14) is installed inside the mounting base (9) through a pin. An air inlet pipe (15) is connected to one side of the bottom end of the gas storage cylinder (6). An air inlet valve (16) is installed on the outer side of the air inlet pipe (15). An air blowing pipe (17) is connected to the bottom side of the gas storage cylinder (6). An air outlet valve (18) is installed on the outer side of one end of the air blowing pipe (17).

2. The spot welding device for manufacturing a linear motor according to claim 1, characterized in that: The mounting plate (4) has four fixed rods (19) fixed at the bottom corners. A movable plate (20) is slidably mounted on the outside of the fixed rods (19). Tension springs (21) are fixed to the top of the movable plate (20) and the four bottom corners of the mounting plate (4). The tension springs (21) are sleeved on the outside of the fixed rods (19). A spot welding machine (22) is mounted on the bottom of the movable plate (20). One end of the air pipe (17) is mounted on the outside of the spot welding machine (22). A support frame (23) is mounted on the other side of the mounting plate (4). A drive motor (24) is assembled inside the support frame (23). A rotating shaft (25) is mounted on the output end of the drive motor (24). A cam (26) is mounted on the outside of the rotating shaft (25). When the cam (26) moves, its protruding position will contact the movable plate (20).

3. The spot welding device for manufacturing a linear motor according to claim 2, characterized in that: One end of the rotating shaft (25) is equipped with a drive wheel (27), and the outer side of one end of the rotating shaft (11) is equipped with a driven wheel (28). The drive wheel (27) and the driven wheel (28) are connected by a belt (29).

4. The spot welding device for manufacturing a linear motor according to claim 3, characterized in that: A servo motor (30) is installed on one side of the bottom of the fixed frame (2). The output end of the servo motor (30) is equipped with a mounting cavity (31). A first motor (32) is installed on one side of the mounting cavity (31). A disc (33) is installed on the output end of the first motor (32). Three arc-shaped grooves (34) are equidistantly opened inside the disc (33). A slide rod (35) is slidably installed inside each arc-shaped groove (34). Three sliding grooves (36) are equidistantly opened inside one side of the mounting cavity (31). A fixed clamp (37) is slidably installed inside the sliding groove (36). One end of the slide rod (35) is fixed to one side of the fixed clamp (37).

5. A spot welding device for manufacturing a linear motor according to claim 4, characterized in that: The base plate (1) has an upward-opening groove (38) inside, and a telescopic rod (39) is installed inside the groove (38). A support seat (40) is installed at the working end of the telescopic rod (39).

6. A spot welding device for manufacturing a linear motor according to claim 5, characterized in that: A control panel (41) is installed on one side of the base plate (1), and the control panel (41) is used to control the operation of the electrical components inside the device.

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