Forming press for transformer oil tank

Abstract

The utility model relates to the technical field of transformer oil tank production, and discloses a forming press for a transformer oil tank, which comprises a box body, a lower die is fixedly connected to the center of the inner bottom surface of the box body, hydraulic cylinders are fixedly connected to four corners of the lower end of the inner wall of the box body, and connecting blocks are fixedly connected to the output ends of the hydraulic cylinders. According to the metal plate punching device, downward output is achieved through the second electric telescopic rod, so that the lower plate makes contact with a metal plate, when the upper die begins to punch the metal plate, the upper plate and the lower plate move upwards through the first electric telescopic rod, at the moment, the lower plate plays a role in limiting the metal plate, and the lower plate can move upwards through the arranged spring and the arranged telescopic block; therefore, the pressure of the lower plate on the metal plate is not fixed, the situation that the metal plate is broken when the upper die punches the metal plate due to the fact that the two sides of the metal plate are fixed is avoided, the two sides of the metal plate are well limited, and the situation that the metal plate may deviate in the punching process is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer oil tank production, in particular to a press machine for transformer oil tanks. Background Art

[0002] The transformer oil tank is an important part of the transformer. It is used to store insulating oil and protect the inside of the transformer from the influence of the external environment. The transformer oil tank press machine is a mechanical equipment designed specifically for the production of transformer oil tanks. The transformer oil tank is usually made of metal sheets. Through the mold cold pressing process, the transformer oil tank wall is pressed into a folded plate shape, and then the folded plate is welded into a corrugated box body, thereby obtaining a transformer oil tank with a large area heat dissipation function.

[0003] During the use of most existing transformer oil tank presses, it is necessary to manually place the metal plate on the stamping table and then take out the pressed metal plate. However, placing the metal plate in this way may cause certain dangers, and it is troublesome to take out the metal plate, which is not efficient. In addition, most existing transformer oil tank presses do not have a good limiting method for the metal plate during the stamping process, which may cause the metal plate to deviate during stamping, thereby scrapping the metal plate and causing unnecessary losses.

[0004] Therefore, those skilled in the art provide a forming machine for a transformer oil tank to solve the problems raised in the above background technology. Utility Model Content

[0005] The utility model aims to solve the shortcomings existing in the prior art and proposes a press for transformer oil tank, the press for transformer oil tank places the metal plate on the placing plate by means of a friction plate, so that the two sides of the metal plate are flush with the edges of the placing plate, and then rotates by the second motor, so that the placing plate is moved to the stamping position by the second screw rod and the second slider, the metal plate is limited by the limit plate, and then the placing plate is lowered to the upper surface of the lower mold by the hydraulic cylinder, and the placing plate is fixed by the clamping groove and the clamping block. After stamping, the second motor is rotated, so that the connecting rod is moved upward by the first screw rod and the first slider, so that the pressing plate is moved upward, and the stamped metal plate is moved out of the mold groove, and then the placing plate is raised by the hydraulic cylinder, and then the second motor is rotated, so that the placing plate is moved out by the second screw rod and the second slider, which can improve the efficiency of taking out the metal plate, and there is no need to manually place the metal plate on the stamping table, thus avoiding the danger caused by manually placing the metal plate.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A press for a transformer oil tank, comprising a box body, a lower mold is fixedly connected at the center of the inner bottom surface of the box body, four corners of the lower end of the inner wall of the box body are fixedly connected to a hydraulic cylinder, the output ends of the hydraulic cylinders are fixedly connected to a connecting block, a screw rod groove is provided inside the connecting block, the outer wall of the rear end of the connecting block is fixedly connected to a motor box, the motor box is provided with a motor groove inside, a second motor is fixedly connected to the inner bottom surface of the motor groove, the output end of the second motor is fixedly connected to a second screw rod, the outer wall of the second screw rod is threadedly connected to a second slider, a side of the second slider away from the connecting block is fixedly connected to a placement plate, a side of the screw rod groove close to the box body is fixedly connected to a sliding rod, a lower surface of the placement plate is fixedly connected to a clamping block, both sides of the center of the inner bottom surface of the box body are fixedly connected to the fixed block, and the upper surface of the fixed block is provided with a clamping groove;

[0008] The cam is provided with a first movable part, the second movable part being provided with a first movable part and a second movable part being provided with a second movable part.

[0009] Through the above technical solution, the transformer oil tank forming machine can safely and effectively punch metal plates.

[0010] Furthermore, a mold groove is provided on the upper surface of the lower mold.

[0011] Through the above technical solution, the metal plate can be shaped during stamping through the die groove.

[0012] Furthermore, the middle portion of the lower surface of the upper die base is fixedly connected with the upper die.

[0013] Through the above technical solution, the metal plate can be stamped through the upper die.

[0014] Furthermore, the fixing block and the clamping block are clamped together through a clamping slot.

[0015] Through the above technical solution, the placement plate can be fixed on the fixing block through snap-fitting.

[0016] Furthermore, the lower ends of the outer walls on both sides of the upper mold are provided with sliding grooves, and the upper plate and the lower plate both slide inside the sliding grooves.

[0017] Through the above technical solution, the upper plate and the lower plate can be moved up and down through the slide groove.

[0018] Furthermore, the upper end of the front end outer wall of the lower mold is fixedly connected to a limiting plate.

[0019] Through the above technical solution, the placed metal plate can be limited to a certain extent by the limiting plate.

[0020] Furthermore, a friction plate is provided on the upper surface of the placement plate.

[0021] Through the above technical solution, the friction plate can prevent the metal plate from slipping on the placement plate.

[0022] Furthermore, the pressing plate fits tightly with the mold groove.

[0023] Through the above technical solution, the stamped metal plate can be more beautiful due to the close fit between the pressing plate and the die groove.

[0024] The utility model has the following beneficial effects:

[0025] 1. The utility model discloses a press machine for a transformer oil tank, wherein the press machine for the transformer oil tank places a metal plate on a placing plate by means of a friction plate, so that both sides of the metal plate are flush with the edges of the placing plate, and then rotates the second motor, so that the placing plate is moved to a stamping position by means of a second screw rod and a second slider, the metal plate is limited by a limiting plate, and then the placing plate is lowered to an upper surface of a lower mold by means of a hydraulic cylinder, and the placing plate is fixed by means of a clamping groove and a clamping block. After stamping, the second motor rotates, so that the connecting rod is moved upward by means of the first screw rod and the first slider, so that the pressing plate is moved upward, and the stamped metal plate is subsequently moved out of the mold groove, and then the placing plate is raised by means of a hydraulic cylinder, and then the second motor rotates, so that the placing plate is moved out by means of the second screw rod and the second slider, so that the efficiency of taking out the metal plate is improved, and there is no need to manually place the metal plate on the stamping table, thus avoiding the danger caused by manually placing the metal plate.

[0026] 2. The utility model proposes a press for a transformer oil tank. When the press of the transformer oil tank is output downwardly through the second electric telescopic rod, so that the lower plate contacts the metal plate, and the upper mold starts to punch the metal plate, the upper plate and the lower plate are moved upward by the first electric telescopic rod. At this time, the lower plate limits the metal plate. The lower plate can be moved upward by the provided spring and telescopic block, so that the pressure of the lower plate on the metal plate is not fixed, which can avoid the metal plate from breaking when the upper mold punches the metal plate due to the fixing of the two sides of the metal plate, and can also have a good limit on both sides of the metal plate, thereby avoiding the metal plate from deflecting during stamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is an axonometric diagram of a forming machine for a transformer oil tank proposed in the utility model;

[0028] Figure 2 A cross-sectional view of a forming machine for a transformer oil tank proposed in the utility model;

[0029] Figure 3 This is a cross-sectional view of a connecting block in a forming machine for a transformer oil tank proposed by the utility model;

[0030] Figure 4 This is a structural schematic diagram of a middle and lower mold of a press for a transformer oil tank proposed by the utility model;

[0031] Figure 5 This is a structural schematic diagram of an upper mold and the like of a press for a transformer oil tank proposed by the utility model;

[0032] Figure 6 for Figure 2 The enlarged view of point A in the middle;

[0033] Figure 7 The utility model is a part diagram of a positioning block in a press for a transformer oil tank.

[0034] Legend:

[0035] 1. Box body; 2. Hydraulic cylinder; 3. Connecting block; 4. Lower mold; 5. Fixed block; 6. Slot; 7. Block; 8. First electric telescopic rod; 9. Electric telescopic rod slot; 10. Second electric telescopic rod; 11. Mold slot; 12. Press plate; 13. Limit plate; 14. First screw rod; 15. First slider; 16. First motor; 17. Connecting rod; 18. Limit rod; 19. Limit slot; 20. Motor box; 21. Motor slot; 22. Second motor; 23. Second screw rod; 24. Second slider; 25. Slide rod; 26. Screw rod slot; 27. Upper mold base; 28. Upper mold; 29. ​​Upper plate; 30. Lower plate; 31. Telescopic block; 32. Spring; 33. Slide slot; 34. Friction plate; 35. Placement plate; 36. Empty slot; 37. Positioning block. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] Reference Figure 1-7 , an embodiment provided by the utility model:

[0038] A press for a transformer oil tank, comprising a box body 1, a lower mold 4 is fixedly connected at the center of the inner bottom surface of the box body 1, a hydraulic cylinder 2 is fixedly connected at the four corners of the lower end of the inner wall of the box body 1, the output end of the hydraulic cylinder 2 is fixedly connected to a connecting block 3, a screw rod groove 26 is provided inside the connecting block 3, a motor box 20 is fixedly connected to the outer wall of the rear end of the connecting block 3, a motor slot 21 is provided inside the motor box 20, a second motor 22 is fixedly connected to the inner bottom surface of the motor slot 21, a second screw rod 23 is fixedly connected to the output end of the second motor 22, a second slider 24 is threadedly connected to the outer wall of the second screw rod 23, a placement plate 35 is fixedly connected to the side of the second slider 24 away from the connection block 3, a slide rod 25 is fixedly connected to the side of the screw rod groove 26 close to the box body 1, a clamping block 7 is fixedly connected to the lower surface of the placement plate 35, fixed blocks 5 are fixedly connected to both sides of the center of the inner bottom surface of the box body 1, and a clamping slot 6 is provided on the upper surface of the fixed block 5;

[0039] A slot 36 is provided at the lower end of the lower mold 4, a first motor 16 is fixedly connected to one side of the bottom surface of the slot 36, a first screw rod 14 is fixedly connected to the output end of the first motor 16, a first slider 15 is threadedly connected to the outer wall of the first screw rod 14, a connecting rod 17 is fixedly connected to the upper surface of the first slider 15, a pressing plate 12 is fixedly connected to the upper surface of the connecting rod 17, a limiting rod 18 is fixedly connected to the side of the first slider 15 away from the first screw rod 14, a limiting slot 19 is provided on the inner wall of one side of the slot 36, and a first slider 15 is fixedly connected to the inner top surface of the box body 1. Two second electric telescopic rods 10, the lower surfaces of the second electric telescopic rods 10 are fixedly connected with an upper mold base 27, both sides of the upper mold base 27 are provided with electric telescopic rod grooves 9, the inner top surfaces of the electric telescopic rod grooves 9 are fixedly connected with the first electric telescopic rod 8, the output ends of the first electric telescopic rod 8 are fixedly connected with an upper plate 29, the lower surfaces of the upper plate 29 are fixedly connected with a plurality of positioning blocks 37, the interiors of the positioning blocks 37 are provided with telescopic blocks 31, the lower surfaces of the telescopic blocks 31 are fixedly connected with the lower plates 30, and the outer walls of the positioning blocks 37 are sleeved with springs 32.

[0040] The transformer tank forming machine is a safe and efficient way to stamp sheet metal.

[0041] The upper surface of the lower mold 4 is provided with a mold groove 11, through which the metal plate can be shaped during stamping. The middle part of the lower surface of the upper mold base 27 is fixedly connected with an upper mold 28, through which the metal plate can be stamped. The fixed block 5 and the clamping block 7 are clamped together through the clamping groove 6, and the placement plate 35 can be fixed on the fixed block 5 through the clamping fit. The lower ends of the outer walls on both sides of the upper mold 28 are provided with sliding grooves 33, and the upper plate 29 and the lower plate 30 both slide inside the sliding grooves 33. The upper plate 29 and the lower plate 30 can be moved up and down through the slide groove 33. The upper end of the outer wall of the front end of the lower mold 4 is fixedly connected to the limit plate 13. The limit plate 13 can limit the placed metal plate to a certain extent. The upper surface of the placement plate 35 is provided with a friction plate 34. The friction plate 34 can prevent the metal plate from slipping on the placement plate 35. The pressing plate 12 fits tightly with the mold groove 11. The pressing plate 12 fits tightly with the mold groove 11, so that the stamped metal plate can be more beautiful.

[0042] Working principle: When in use, the metal plate is placed on the placement plate 35 through the friction plate 34, so that the two sides of the metal plate are flush with the edges of the placement plate 35, and then the second motor 22 is rotated, so that the placement plate 35 is moved to the stamping position through the second screw rod 23 and the second slider 24, and then the placement plate 35 is lowered to the upper surface of the lower mold 4 through the hydraulic cylinder 2, and the placement plate 35 is fixed by the card slot 6 and the card block 7. After stamping, the second motor 22 is rotated, so that the connecting rod 17 is moved upward through the first screw rod 14 and the first slider 15, so that the pressing plate 12 is moved upward, and the stamped metal plate is moved out of the mold groove 11, and then the placement plate 35 is raised by the hydraulic cylinder 2, and then the second motor 22 is rotated, so that the placement plate 35 is moved by the second screw rod 23 and the second slider 24. The lower plate 30 is moved upward by the first electric telescopic rod 8, and the lower plate 30 is moved upward by the second electric telescopic rod 10 to improve the efficiency of taking out the metal plate, and there is no need to manually place the metal plate on the stamping table, thereby avoiding the danger of manually placing the metal plate. When stamping the metal plate, the second electric telescopic rod 10 is used to output downward, so that the lower plate 30 contacts the metal plate. When the upper mold 28 starts to stamp the metal plate, the upper plate 29 and the lower plate 30 are moved upward by the first electric telescopic rod 8. At this time, the lower plate 30 has a limiting effect on the metal plate. The lower plate 30 can be moved upward by the set spring 32 and the telescopic block 31, so that the pressure of the lower plate 30 on the metal plate is not fixed, which can avoid the metal plate from breaking when the upper mold 28 stamps the metal plate due to the fixation of the two sides of the metal plate, and can also have a good limit on both sides of the metal plate, thereby avoiding the situation that the metal plate may deviate during stamping.

[0043] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A forming machine for a transformer oil tank, comprising a tank body (1), characterized in that: A lower mold (4) is fixedly connected to the center of the inner bottom surface of the box body (1), a hydraulic cylinder (2) is fixedly connected to the four corners of the lower end of the inner wall of the box body (1), the output end of the hydraulic cylinder (2) is fixedly connected to a connecting block (3), a screw rod groove (26) is provided inside the connecting block (3), the outer wall of the rear end of the connecting block (3) is fixedly connected to a motor box (20), a motor groove (21) is provided inside the motor box (20), and a second motor (22) is fixedly connected to the inner bottom surface of the motor groove (21), and the second motor The output end of the housing (22) is fixedly connected to a second screw rod (23), the outer wall of the second screw rod (23) is threadedly connected to a second slider (24), the side of the second slider (24) away from the connecting block (3) is fixedly connected to a placement plate (35), the side of the screw rod groove (26) close to the box body (1) is fixedly connected to a slide rod (25), the lower surface of the placement plate (35) is fixedly connected to a clamping block (7), both sides of the center of the inner bottom surface of the box body (1) are fixedly connected to fixed blocks (5), and the upper surface of each of the fixed blocks (5) is provided with a clamping groove (6); A hollow groove (36) is provided at the lower end of the lower mold (4); a first motor (16) is fixedly connected to one side of the bottom surface of the hollow groove (36); a first screw rod (14) is fixedly connected to the output end of the first motor (16); a first slider (15) is threadedly connected to the outer wall of the first screw rod (14); a connecting rod (17) is fixedly connected to the upper surface of the first slider (15); a pressure plate (12) is fixedly connected to the upper surface of the connecting rod (17); a limiting rod (18) is fixedly connected to the side of the first slider (15) away from the first screw rod (14); a limiting groove (19) is provided on the inner wall of one side of the hollow groove (36); and the inner top surface of the box body (1) is fixedly connected to the first slider (15). Two second electric telescopic rods (10) are connected, the lower surfaces of the second electric telescopic rods (10) are fixedly connected to an upper mold base (27), both sides of the upper mold base (27) are provided with electric telescopic rod grooves (9), the inner top surfaces of the electric telescopic rod grooves (9) are fixedly connected to the first electric telescopic rod (8), the output ends of the first electric telescopic rods (8) are fixedly connected to an upper plate (29), the lower surfaces of the upper plates (29) are fixedly connected to a plurality of positioning blocks (37), the positioning blocks (37) are provided with telescopic blocks (31) inside, the lower surfaces of the telescopic blocks (31) are fixedly connected to a lower plate (30), and the outer walls of the positioning blocks (37) are sleeved with springs (32).

2. A forming machine for a transformer oil tank according to claim 1, characterized in that: A mold groove (11) is provided on the upper surface of the lower mold (4).

3. A forming machine for a transformer oil tank according to claim 1, characterized in that: An upper mold (28) is fixedly connected to the middle portion of the lower surface of the upper mold base (27).

4. A forming machine for a transformer oil tank according to claim 1, characterized in that: The fixing block (5) and the clamping block (7) are clamped together via the clamping slot (6).

5. The forming machine for transformer oil tank according to claim 3, characterized in that: The lower ends of the outer walls on both sides of the upper mold (28) are provided with sliding grooves (33), and the upper plate (29) and the lower plate (30) both slide inside the sliding grooves (33).

6. A forming machine for a transformer oil tank according to claim 1, characterized in that: The upper end of the front end outer wall of the lower mold (4) is fixedly connected to a limiting plate (13).

7. A forming machine for a transformer oil tank according to claim 1, characterized in that: A friction plate (34) is provided on the upper surface of the placement plate (35).

8. The forming machine for transformer oil tank according to claim 1, characterized in that: The pressing plate (12) is tightly fitted to the mold groove (11).

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