A transformer support frame welding machine

Abstract

The present invention relates to the field of welding technology, and discloses a transformer support frame welding machine, including a base, a supporting mechanism and a fixing mechanism; the fixing mechanism includes a turntable fixedly connected to the end of the main shaft, four telescopic sleeves arranged perpendicular to each other are evenly distributed on the outer side of the turntable, a telescopic rod is arranged at the end of the telescopic rod, a back plate is arranged at the end of the telescopic rod, and support wheels with floating positions are arranged on both sides of the back plate, a sliding sleeve is slidably connected to the middle of the telescopic rod, the sliding sleeve is fixedly connected to a bracket, and a pressure plate is fixedly connected to one end of the bracket away from the turntable, and pressure wheels are arranged on both sides of the pressure plate. The present invention achieves the effect of initial centering by adaptive movement after the channel steel to be welded is placed in the welding machine through the cooperation of the pressure wheel and the supporting wheel, and realizes the process of adaptive centering by relying on the inclined surface of the end of the channel steel to be welded, so that the whole welding machine realizes the positioning process when the clamping is completed, and the clamping speed of the welding machine is improved.

Description

Technical Field

[0001] The invention relates to the technical field of welding, in particular to a transformer support frame welding machine. Background Art

[0002] A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. The more common transformers are installed outdoors individually and fixed to utility poles using bolts and profiles. However, for some large-scale power facilities, more transformers are required to work at the same time. In this case, the transformer needs to be fixed directly to the ground through a support frame.

[0003] The support frame uses channel steel welded into a U-shaped structure as a supporting and fixing device. However, since welding is required at the four corners, the four channel steels need to be fixed on the welding table in turn each time welding, and the angle needs to be adjusted to keep it vertical. The overall clamping operation is relatively complicated, so it needs to be improved. Summary of the invention

[0004] The present invention provides a transformer support frame welding machine, which solves the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A transformer support frame welding machine comprises a base, a supporting mechanism and a fixing mechanism; the supporting mechanism comprises a main shaft rotatably connected to the base, an auxiliary supporting frame rotatably connected to the outside of the base, and a welding device is arranged on the outside of the auxiliary supporting frame; the fixing mechanism comprises a turntable fixedly connected to the end of the main shaft, four telescopic sleeves arranged perpendicular to each other are evenly distributed on the outside of the turntable, a telescopic rod is arranged at the end of the telescopic sleeve, a back plate is arranged at the end of the telescopic rod, and support wheels with floating positions are arranged on both sides of the back plate, a sliding sleeve is slidably connected to the middle part of the telescopic rod, the sliding sleeve is fixedly connected to a bracket, a pressure plate is fixedly connected to one end of the bracket away from the turntable, pressure wheels are arranged on both sides of the pressure plate, a channel steel to be welded with an end cut into an oblique angle is installed between the pressure wheel and the supporting wheel, the pressure wheel and the supporting wheel maintain a tendency to move toward the channel steel to be welded, a fixing plate is fixedly connected to the telescopic rod, a clamping spring is arranged between the fixing plate and the sliding sleeve, and the clamping spring drives the sliding sleeve to move toward the direction of the turntable.

[0007] As a preferred technical solution of the present invention, the bracket is a U-shaped structure, a support plate is arranged on the side of the sliding sleeve, the support plate is located between the pressure plate and the back plate, a gear lever is arranged on the side of the back plate close to the turntable, a rotating seat is arranged on the side of the support plate away from the pressure plate, the rotating seat is rotatably connected to an L-shaped limit rod cooperating with the gear lever, after the L-shaped limit rod contacts the gear lever, the side of the support wheel is flush with the back plate, and the side of the pressure wheel is flush with the pressure plate.

[0008] As a preferred technical solution of the present invention, a mounting bracket is provided on the side of the back plate close to the turntable, a push rod is slidably connected to the middle of the mounting bracket, an end of the push rod away from the turntable is rotatably connected to the support wheel, a first return spring is provided between the support wheel and the mounting bracket to drive the support wheel to move away from the turntable, and clearance grooves are provided on both sides of the back plate, and the push rod passes through the clearance grooves.

[0009] As a preferred technical solution of the present invention, a rotating block is provided on the side of the pressure plate away from the turntable, the rotating block is rotatably connected to the middle part of the deflection plate, the end of the deflection plate away from the pressure plate is rotatably connected to the pressure wheel, and a second return spring is provided between the end of the deflection plate close to the center of the pressure plate and the pressure plate, and the second return spring drives the pressure wheel to move toward the turntable.

[0010] As a preferred technical solution of the present invention, the telescopic sleeve is slidably connected to the telescopic rod, and the side surface of the telescopic sleeve is threadedly connected with a locking bolt that cooperates with the telescopic rod.

[0011] As a preferred technical solution of the present invention, the side wall of the auxiliary support frame is provided with a driving motor, the output shaft of the driving motor is fixedly connected with a toothless gear, the main shaft is provided with a driven gear that cooperates with the toothless gear, and the auxiliary support frame is provided with an angle limit assembly that limits the main shaft to rotate only ninety degrees at a time. The angle limit assembly includes a limit plate fixedly connected to the main shaft, and four limit triangular grooves are evenly distributed on the outer side of the limit plate. The auxiliary support frame is slidably connected with a limit rod, and a limit triangular head that cooperates with the limit triangular groove is provided on the side of the limit rod close to the main shaft, and a limit spring that drives the limit triangular head to move toward the main shaft is provided between the limit triangular head and the auxiliary support frame.

[0012] The present invention has the following benefits:

[0013] Through the cooperation of the pressure wheel and the support wheel, the channel steel to be welded can be adaptively moved after being placed in the welding machine to achieve a preliminary centering effect, and the adaptive centering processing is achieved by relying on the inclined surface at the end of the channel steel to be welded, so that the entire welding machine can achieve positioning processing when completing clamping, thereby improving the clamping speed of the welding machine and thus improving the welding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1The figure is a structural schematic diagram of a transformer support frame welding machine.

[0016] Figure 2 The figure is a front view of a transformer support frame welding machine.

[0017] Figure 3 The figure is a schematic diagram of the structure of a fixing mechanism in a transformer support frame welding machine.

[0018] Figure 4 The present invention is a structural schematic diagram of a telescopic rod in a transformer support frame welding machine.

[0019] Figure 5 for Figure 4 Right view of .

[0020] Figure 6 The figure is a schematic diagram of the structure of a support mechanism in a transformer support frame welding machine.

[0021] Figure 7 The figure is a schematic diagram of the structure of a transformer support frame welding machine after the channel steel to be welded is fixed.

[0022] Figure 8 The present invention is a schematic diagram of the structure of the cooperation between an L-shaped limit rod and a shift rod in a transformer support frame welding machine.

[0023] Fig. 9 for Figure 8 Top view of the .

[0024] In the figure: 1, base; 2, supporting mechanism; 3, fixing mechanism; 4, turntable; 5, telescopic sleeve; 6, telescopic rod; 7, back plate; 8, supporting wheel; 9, sliding sleeve; 10, bracket; 11, supporting plate; 12, pressing plate; 13, pressing wheel; 14, clamping spring; 15, fixing plate; 16, second return spring; 17, deflection plate; 18, rotating block; 19, giving way groove; 20, top rod; 21, first return spring; 2 2. Mounting bracket; 23. Rotating seat; 24. L-shaped limiting rod; 25. Shift rod; 26. Locking bolt; 27. Main shaft; 28. Auxiliary support frame; 29. ​​Welding device; 30. Driving motor; 31. Toothless gear; 32. Driven gear; 33. Limiting rod; 34. Limiting spring; 35. Limiting triangle head; 36. Limiting triangle groove; 37. Limiting plate; 38. Angle limiting assembly; 39. Channel steel to be welded. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] In one embodiment, see Figure 1-Figure 9 A transformer support frame welding machine includes a base 1, which is a columnar structure, and a plurality of oblique legs extend from the bottom of the columnar structure, so that the base 1 can be placed directly on the ground, and also includes a supporting mechanism 2 and a fixing mechanism 3;

[0027] The support mechanism 2 includes a main shaft 27 rotatably connected to the upper end of the base 1. The main shaft 27 is vertically arranged and fixedly connected to the lower side of an auxiliary support frame 28 of a U-shaped structure above the base 1. The upper side of the auxiliary support frame 28 is rotatably connected to the main shaft 27. The auxiliary support frame 28 is provided to improve the stability of the main shaft 27. A welder 29 is provided on the right side wall of the auxiliary support frame 28. The operator can pull out the welding handle of the welder 29 and perform subsequent welding processing by holding the welding handle.

[0028] The fixing mechanism 3 includes a rotating disk 4 fixedly connected to the upper end of the main shaft 27, and four telescopic sleeves 5 arranged perpendicular to each other are evenly distributed on the outer edge of the rotating disk 4. The position relationship is described according to the telescopic sleeve 5 on the front side. The front end of the telescopic sleeve 5 is slidably connected to the telescopic rod 6 arranged in the front and rear directions, and the front end of the telescopic rod 6 is fixedly connected to the back plate 7 arranged in the left and right directions. Support wheels 8 are arranged at both ends of the back plate 7, and the support wheels 8 can move forward and backward adaptively. A sliding sleeve 9 is slidably connected to the middle part of the telescopic rod 6, and the lower surface of the sliding sleeve 9 is fixedly connected to a bracket 10. The bracket 10 is a U-shaped structure arranged in the front and rear directions. The front end of the bracket 10 is fixedly connected to a pressure plate 12, and pressure plates 12 are also arranged on the left and right sides. Wheel 13, the pressure wheel 13 can be adaptively moved forward and backward. In the initial stage of welding, the channel steel 39 to be welded can be placed between the pressure wheel 13 and the supporting wheel 8 in a left-right direction. The pressure wheel 13 and the supporting wheel 8 will press the channel steel 39 to be welded. At this time, the channel steel 39 to be welded can move horizontally left and right. A left-right fixed plate 15 is arranged on the rear side of the telescopic rod 6. A clamping spring 14 is arranged between the fixed plate 15 and the sliding sleeve 9. The clamping spring 14 is sleeved on the outside of the telescopic rod 6, and the clamping spring 14 will pull the sliding sleeve 9 toward the rear side, so that when the channel steel 39 to be welded is placed, the pressure plate 12 will move toward the direction of the back plate 7, and at this time, the pressure wheel 13 and the supporting wheel 8 will press the channel steel 39 to be welded.

[0029] In one case of the present embodiment, a support plate 11 is provided on the lower cross bar of the bracket 10, and the support plate 11 is located between the pressure plate 12 and the back plate 7. When the groove portion of the channel steel 39 to be welded is placed toward the direction of the turntable 4, the lower surface of the channel steel 39 to be welded just falls on the support plate 11, so that the channel steel 39 to be welded can maintain a horizontal state. According to the position of the front side support plate 11, a rotating seat 23 is provided on both sides of the left and right sides of the lower surface of the support plate 11, and the rotating seat 23 is rotatably connected to the L-shaped limit rod 24. A back-and-forth-oriented shift rod 25 is provided on the left and right ends of the rear side surface of the back plate 7. When the channel steel 39 to be welded is placed and positioned, it is turned toward the turntable 4. The rear side pushes the pressure plate 12, at this time the support wheel 8 moves backward relative to the back plate 7, and the pressure wheel 13 moves forward relative to the pressure plate 12, at this time the planes of the back plate 7 and the pressure plate 12 will be close to the channel steel 39 to be welded, so that the channel steel 39 to be welded is fixed, at this time the side of the support wheel 8 is flush with the back plate 7, the side of the pressure wheel 13 is flush with the pressure plate 12, and the L-shaped limit rod 24 is rotated upward, the L-shaped limit rod 24 is rotated to a horizontal state and will be buckled on the rear end of the gear rod 25, and because the shape of the L-shaped limit rod 24 will be slightly deformed, thereby maintaining continuous pressure, so that the front pressure plate 12 and the back plate 7 can fix the channel steel 39 to be welded well.

[0030] In one case of the present embodiment, the telescopic rod 6 in the front is still described, and a clearance groove 19 is set on the left and right sides of the back plate 7, and a mounting bracket 22 fixedly connected to the back plate 7 is set on the rear side of the clearance groove 19, and the mounting bracket 22 is slidably connected to the top rod 20, and the front end of the top rod 20 is rotatably connected to the support wheel 8, and a first return spring 21 is set between the support wheel 8 and the mounting bracket 22, and the first return spring 21 will push the support wheel 8 to the front side, so that the support wheel 8 always maintains a forward trend, that is, when the channel steel 39 to be welded is placed in, the support wheel 8 will press against the channel steel 39 to be welded, and when clamped, the support wheel 8 will retract into the inside of the clearance groove 19, so that the channel steel 39 to be welded can be effectively fitted with the back plate 7. Rotating blocks 18 are arranged on the left and right sides of the pressing plate 12, and the front end of the rotating block 18 is rotatably connected to the middle part of the deflection plate 17, and the end of the deflection plate 17 away from the pressing plate 12 is rotatably connected to the pressing wheel 13, and a second return spring 16 is arranged between the end of the deflection plate 17 close to the center of the pressing plate 12 and the pressing plate 12, and the second return spring 16 drives the pressing wheel 13 to move toward the direction of the turntable 4. When the channel steel 39 to be welded is put in, the pressing wheel 13 will press on the front side of the channel steel 39 to be welded, and when the channel steel 39 to be welded is clamped, the pressing wheel 13 will move forward adaptively, so that the front side of the channel steel 39 to be welded fits with the pressing plate 12, thereby improving the clamping effect, and anti-slip rubber can be arranged on the side where the pressing plate 12 and the back plate 7 contact the channel steel 39 to be welded, thereby improving the stability of clamping.

[0031] In one case of the present embodiment, in order to facilitate welding of support frames of different sizes, the telescopic rod 6 and the telescopic sleeve 5 can be arranged to slide relative to each other, and the positions of the telescopic rod 6 and the telescopic sleeve 5 can be adjusted for support frames of different sizes. After the adjustment is completed, the locking bolt 26 arranged under the telescopic sleeve 5 is tightened, and the locking bolt 26 presses the telescopic rod 6 to keep the relative position fixed.

[0032] In one case of the present embodiment, a driving motor 30 is arranged on the right side of the lower side of the auxiliary support frame 28, and the output shaft of the driving motor 30 is fixedly connected to the toothless gear 31, and the driven gear 32 is fixedly connected to the lower side of the main shaft 27. When the tooth portion of the toothless gear 31 rotates to mesh with the driven gear 32, the toothless gear 31 will drive the driven gear 32 to rotate, and the angle of each rotation is close to 90°. In order to reduce the accuracy requirement for motor control, an angle limit is set on the left side of the auxiliary support frame 28. The angle limiting assembly 38 is configured such that each time the main shaft 27 rotates a certain angle, the toothed portion of the toothless gear 31 is disengaged from the driven gear 32. At this time, the angle limiting assembly 38 can just adjust the rotation angle of the main shaft 27 to 90°. The angle limiting assembly 38 includes a limiting plate 37 fixed above the main shaft 27. Four limiting triangular grooves 36 are arranged on the outer side of the limiting plate 37 and are evenly distributed relative to the center of the limiting plate 37. A limiting rod 33 arranged in a left and right direction is slidably connected above the left side wall of the auxiliary support frame 28. The right end of the limiting rod 33 is fixedly connected with a limiting triangular head 35 that cooperates with the limiting triangular groove 36. A limiting spring 34 is arranged between the limiting triangular head 35 and the auxiliary support frame 28. The limiting spring 34 is sleeved on the outside of the limiting rod 33, and the limiting spring 34 will push the limiting triangular head 35 to the right. When the main shaft 27 drives the limiting plate 37 to rotate, the limiting triangular head 35 will slide out of the limiting triangular groove 36, and when the main shaft 27 rotates approximately 90°, the limiting triangular head 35 will be inserted into the limiting triangular groove again. In the angle groove 36, the toothless gear 31 is disengaged from the driven gear 32, and the side of the limiting triangular head 35 is fitted with the side of the limiting triangular groove 36, so that the rotation angle of the main shaft 27 is limited to 90°. In other words, the meshing rotation of the toothless gear 31 and the driven gear 32 does not require particularly precise rotation of the main shaft 27 by 90°. It is only necessary to insert the limiting triangular head 35 into the limiting triangular groove 36. Subsequently, the 90° angle positioning can be completed through the cooperation of the limiting triangular head 35 and the limiting triangular groove 36.

[0033] During the implementation of this embodiment, the base 1 is placed on the ground to keep the entire welding machine stable. The channel steel 39 to be welded is cut into a fixed length by the unloading device, and the end of the channel steel 39 to be welded is cut into a 45° angle to facilitate subsequent welding processing.

[0034] First, pull out the front pressure plate 12 to the outside, place the channel steel 39 to be welded on the support plate 11 with the left and right sides facing each other, release the pressure plate 12, and the clamping spring 14 will pull the pressure plate 12 backward, so that the pressure wheel 13 and the support wheel 8 are against the side of the channel steel 39 to be welded. At this time, the channel steel 39 to be welded can move left and right on the support plate 11, but it is necessary to overcome a certain friction force on the support plate 11. Drive the turntable 4 to rotate 90°, repeat the above steps to put in a new channel steel 39 to be welded, and at this time, one end of the channel steel 39 to be welded will contact the end of the previously placed channel steel 39 to be welded, and the two contact surfaces are The inclined surfaces will slide adaptively with each other, so that the ends of the two channel steels 39 to be welded fit together, and the above steps are repeated to install the third and fourth channel steels 39 to be welded, and when installing the fourth channel steel 39 to be welded, the two ends of the channel steel 39 to be welded are respectively in contact with the third and first channel steels 39 to be welded. At this time, due to the characteristics of the end inclined surfaces, the four channel steels 39 to be welded will move adaptively, so that the four channel steels 39 to be welded are connected end to end and remain perpendicular to each other. At this time, there is still a little gap between the connected positions of the four channel steels 39 to be welded.

[0035] The pressure plate 12 is pressed backward in sequence to retract the pressure wheel 13 and the support wheel 8, and the pressure plate 12 and the back plate 7 are close to the channel steel 39 to be welded. At this time, the position of the channel steel 39 to be welded is fixed, and the L-shaped limit rod 24 is buckled on the gear rod 25. Repeat this step to clamp the four channel steels 39 to be welded, and in the process of clamping, since the ends of the channel steel 39 to be welded are inclined, relative displacement will occur when the head and tail are pressed tightly. The force value is large, which will make the channel steel 39 to be welded overcome the friction with the pressure plate 12 and the back plate 7 and move horizontally. When the four channel steels 39 to be welded are fixed, the head and tail of the channel steel 39 to be welded are pressed tightly to keep in the center, and the operator can use the welder 29 to weld the seams at the corners of the channel steel 39 to be welded.

[0036] The present invention is applicable to a transformer support frame welding machine. Through the cooperation of the pressure wheel 13 and the support wheel 8, the channel steel 39 to be welded is placed in the welding machine and adaptively moved to achieve a preliminary centering effect. The inclined surface at the end of the channel steel 39 to be welded is used to achieve adaptive centering. The entire welding machine achieves positioning processing when clamping is completed, thereby improving the clamping speed of the welding machine and thus improving the welding efficiency.

[0037] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

Claims

1. A transformer support frame welding machine, characterized in that: It includes a base, a supporting mechanism and a fixing mechanism; The support mechanism comprises a main shaft rotatably connected to the base, an auxiliary support frame rotatably connected to the main shaft is fixedly connected to the outside of the base, and a welder is arranged on the outside of the auxiliary support frame; The fixing mechanism comprises a turntable fixedly connected to the end of the main shaft, four telescopic sleeves arranged perpendicular to each other are evenly distributed on the outer side of the turntable, a telescopic rod is slidably arranged at the end of the telescopic sleeve, a back plate is arranged at the end of the telescopic rod, and support wheels with floating positions are arranged on both sides of the back plate, a sliding sleeve is slidably connected to the middle of the telescopic rod, the sliding sleeve is fixedly connected to a bracket, a pressure plate is fixedly connected to the end of the bracket away from the turntable, pressure wheels are arranged on both sides of the pressure plate, a channel steel to be welded with the end cut into an oblique angle is installed between the pressure wheel and the support wheel, the pressure wheel and the support wheel maintain a tendency to move toward the channel steel to be welded, a fixing plate is fixedly connected to the telescopic rod, a clamping spring is arranged between the fixing plate and the sliding sleeve, and the clamping spring drives the sliding sleeve to move toward the direction of the turntable. The bracket is a U-shaped structure, and a support plate is provided on the side of the sliding sleeve, and the support plate is located between the pressure plate and the back plate. A gear lever is provided on the side of the back plate close to the turntable, and a rotating seat is provided on the side of the support plate away from the pressure plate. The rotating seat is rotatably connected to an L-shaped limit rod that cooperates with the gear lever, and the side of the supporting wheel is flush with the back plate, and the side of the pressure wheel is flush with the pressure plate. The L-shaped limit rod is rotated upward, and the L-shaped limit rod is rotated to a horizontal state and will be buckled on the rear end of the gear lever. A rotating block is provided on the side of the pressure plate away from the turntable, and the rotating block is rotatably connected to the middle part of the deflection plate, and the end of the deflection plate away from the pressure plate is rotatably connected to the pressure wheel, and a second return spring is provided between the end of the deflection plate close to the center of the pressure plate and the pressure plate, and the second return spring drives the pressure wheel to move toward the turntable.

2. A transformer support frame welding machine according to claim 1, characterized in that: A mounting bracket is provided on one side of the back plate close to the turntable, a push rod is slidably connected to the middle of the mounting bracket, an end of the push rod away from the turntable is rotatably connected to the support wheel, a first return spring that drives the support wheel to move away from the turntable is provided between the support wheel and the mounting bracket, and clearance grooves are provided on both sides of the back plate, and the push rod passes through and connects the clearance grooves.

3. A transformer support frame welding machine according to claim 1, characterized in that The telescopic sleeve is slidably connected to the telescopic rod, and a locking bolt matched with the telescopic rod is threadedly connected to the side surface of the telescopic sleeve.

4. A transformer support frame welding machine according to claim 1, characterized in that: A driving motor is arranged on the side wall of the auxiliary support frame, the output shaft of the driving motor is fixedly connected with a toothless gear, a driven gear cooperating with the toothless gear is arranged on the main shaft, and an angle limit component which limits the main shaft to rotate only ninety degrees at a time is arranged on the auxiliary support frame.

5. A transformer support frame welding machine according to claim 4, characterized in that: The angle limit assembly includes a limit plate fixedly connected to the main shaft, four limit triangular grooves are evenly distributed on the outer side of the limit plate, a limit rod is slidably connected to the auxiliary support frame, a limit triangular head that cooperates with the limit triangular groove is arranged on the side of the limit rod close to the main shaft, and a limit spring is arranged between the limit triangular head and the auxiliary support frame to drive the limit triangular head to move toward the main shaft.

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