Novel transformer clamp welding clamp

Abstract

The utility model relates to a novel transformer clamping piece welding clamp which can be used in cooperation with a welding robot and is high in clamping efficiency, good in precision and good in applicability at the same time, and when a clamping piece base frame is placed on a bottom plate, three sets of limiting assemblies limit one first cross beam in the clamping piece base frame; the inner side faces of the two first limiting blocks in the same limiting assembly are in limiting contact with the outer side faces of the corresponding first cross beams correspondingly, the outer side face of one second limiting block is in limiting contact with the inner side face of the corresponding first cross beam, and pressing blocks in three first rotating downward-pressing air cylinders press the upper end face of the corresponding first cross beam in the clamping piece base frame correspondingly. Pressing blocks in the three second rotating downward-pressing air cylinders press the upper end face of the corresponding convex lug plate in the workpiece clamping base frame. The clamp has the advantages that the clamp can be matched with a welding robot; secondly, the clamp not only is good in clamping accuracy, but also is high in clamping efficiency; and thirdly, the clamp is good in applicability.

Description

Technical Field

[0001] The utility model belongs to the technical field of transformer manufacturing, and particularly relates to a novel transformer clamp welding fixture. Background Art

[0002] The transformer triangular clamp includes a triangular upper clamp (as shown in Figure 5 ), and a triangular lower clamp (as shown in Figure 4 ). Both the triangular upper clamp and the triangular lower clamp include a clamp base frame 1' (as shown in Figure 3 ). The clamp base frame 1' is formed by sequentially welding three first cross beams 2' and three second cross beams 3'. The length of the first cross beam 2' is greater than that of the second cross beam 3'. One lug plate 4' is welded to the outer side surface of each of the three second cross beams 3'. The triangular upper clamp is formed by welding a base foot on the clamp base frame 1', and the triangular lower clamp is formed by welding a mounting plate on the clamp base frame 1'. At present, our company forms the triangular upper clamp or the triangular lower clamp by manual welding. Before welding, the clamp base frame 1' is placed on a welding platform, and then the triangular upper clamp or the triangular lower clamp is formed by manually holding a welding torch for welding. However, manual welding not only has low welding efficiency but also unstable welding quality. Content of the Utility Model

[0003] Design purpose: To avoid the deficiencies in the background art, a novel transformer clamp welding fixture is designed, which can not only be used in cooperation with a welding robot, but also has high clamping efficiency, good precision, and good applicability.

[0004] Design scheme: To achieve the above design purpose.

[0005] 1. Three sets of first threaded holes are provided on the upper end surface of the bottom plate, and the three sets of first threaded holes are circularly distributed, with an included angle of 120° between adjacent two sets of first threaded holes. A set of through holes on the bottom plate of the first rotary pressing cylinder in the first rotary pressing cylinder is aligned with a corresponding set of first threaded holes and then fixedly installed on the bottom plate through bolts; three sets of second threaded holes are provided on the upper end surface of the bottom plate, and the three sets of second threaded holes are circularly distributed, with an included angle of 120° between adjacent two sets of second threaded holes. A set of through holes on the bottom plate of the second rotary pressing cylinder in the second rotary pressing cylinder is aligned with a corresponding set of second threaded holes and then fixedly installed on the bottom plate through bolts; three sets of limiting components are provided on the upper end surface of the bottom plate, and each set of limiting components includes two first limiting blocks and one second limiting block. One first limiting block is provided on each side of each second rotary pressing cylinder, and one second limiting block is provided on the front side of each second rotary pressing cylinder; when the clamping piece base frame is placed on the bottom plate, the three sets of limiting components limit a first cross beam in the clamping piece base frame. The inner side surfaces of the two first limiting blocks in the same set of limiting components are respectively in limiting contact with the outer side surfaces of the corresponding first cross beam, and the outer side surface of one second limiting block is in limiting contact with the inner side surface of the corresponding first cross beam. The pressing blocks in the three first rotary pressing cylinders respectively press the upper end surfaces of the corresponding first cross beams in the clamping piece base frame, and the pressing blocks in the three second rotary pressing cylinders respectively press the upper end surfaces of the corresponding lug plates in the clamping piece base frame. This design is one of the technical features of the present utility model.The purpose of such a design is as follows: There are three groups of first threaded holes on the upper end surface of the bottom plate, and the three groups of first threaded holes are circularly distributed, with an included angle of 120° between adjacent two groups of first threaded holes. A set of through holes on the bottom plate of the first rotary pressing cylinder in the first rotary pressing cylinder are aligned with a corresponding set of first threaded holes and then fixedly installed on the bottom plate through bolts; there are three groups of second threaded holes on the upper end surface of the bottom plate, and the three groups of second threaded holes are circularly distributed, with an included angle of 120° between adjacent two groups of second threaded holes. A set of through holes on the bottom plate of the second rotary pressing cylinder in the second rotary pressing cylinder are aligned with a corresponding set of second threaded holes and then fixedly installed on the bottom plate through bolts; there are three groups of limiting components on the upper end surface of the bottom plate, and each limiting component includes two first limiting blocks and one second limiting block. One first limiting block is provided on each side of each second rotary pressing cylinder, and one second limiting block is provided on the front side of each second rotary pressing cylinder; when the clamping part base frame is placed on the bottom plate, the three groups of limiting components limit a first cross beam in the clamping part base frame. The inner side surfaces of the two first limiting blocks in the same group of limiting components are respectively in limiting contact with the outer side surfaces of the corresponding first cross beam, and the outer side surface of one second limiting block is in limiting contact with the inner side surface of the corresponding first cross beam. The pressing blocks in the three first rotary pressing cylinders respectively press the upper end surfaces of the corresponding first cross beams in the clamping part base frame, and the pressing blocks in the three second rotary pressing cylinders respectively press the upper end surfaces of the corresponding lug plates in the clamping part base frame. In this way, the clamping part base frame can be positioned and clamped, and after clamping, the first rotary pressing cylinder, the second rotary pressing cylinder and the limiting components will not interfere with the welding work of the welding robot. That is, after a new type of transformer clamping part welding fixture positions and clamps the clamping part base frame, the welding robot can weld the clamping part base frame to form a triangular upper clamping part or a triangular lower clamping part. Using the welding robot for welding not only has high welding efficiency, but also has more stable welding quality; in addition, through the three first rotary pressing cylinders, the three second rotary pressing cylinders and the three groups of limiting components to limit and clamp the clamping part base frame, it can not only improve the clamping accuracy of the clamping part base frame (that is, improve the welding quality), but also improve the clamping efficiency of the clamping part base frame (that is, improve the welding efficiency).

[0006] 2. Three sets of threaded holes three are provided on the upper end surface of the bottom plate, and the three sets of threaded holes three are located outside a corresponding set of threaded holes one. Three sets of threaded holes four are provided on the upper end surface of the bottom plate, and the three sets of threaded holes four are located outside a corresponding set of threaded holes two. Three sets of threaded holes five for installing the second limiting block are provided on the upper end surface of the bottom plate. Three sets of threaded holes six for installing the second limiting block are provided on the upper end surface of the bottom plate. The three sets of threaded holes six are located inside a corresponding set of threaded holes five. A through hole is provided on the upper end surface of the second limiting block, and the through hole penetrates the upper and lower end surfaces of the second limiting block. After the through hole of the second limiting block is aligned with the corresponding threaded hole five or threaded hole six, the second limiting block is fixedly installed on the bottom plate through bolts. A strip-shaped through hole is provided on the upper end surface of the first limiting block, and the strip-shaped through hole penetrates the upper and lower end surfaces of the first limiting block. Three sets of threaded holes seven are provided on the upper end surface of the bottom plate, and each set of threaded holes seven includes two threaded holes. The design that the two threaded holes in the same set of threaded holes seven are arranged on both sides of the corresponding rotary pressing cylinder two is the second technical feature of the present utility model. The purpose of such design is as follows: Three sets of threaded holes three are provided on the upper end surface of the bottom plate, and the three sets of threaded holes three are located outside a corresponding set of threaded holes one. Three sets of threaded holes four are provided on the upper end surface of the bottom plate, and the three sets of threaded holes four are located outside a corresponding set of threaded holes two. Three sets of threaded holes five for installing the second limiting block are provided on the upper end surface of the bottom plate. Three sets of threaded holes six for installing the second limiting block are provided on the upper end surface of the bottom plate. The three sets of threaded holes six are located inside a corresponding set of threaded holes five. A through hole is provided on the upper end surface of the second limiting block, and the through hole penetrates the upper and lower end surfaces of the second limiting block. After the through hole of the second limiting block is aligned with the corresponding threaded hole five or threaded hole six, the second limiting block is fixedly installed on the bottom plate through bolts. A strip-shaped through hole is provided on the upper end surface of the first limiting block, and the strip-shaped through hole penetrates the upper and lower end surfaces of the first limiting block. Three sets of threaded holes seven are provided on the upper end surface of the bottom plate, and each set of threaded holes seven includes two threaded holes. The two threaded holes in the same set of threaded holes seven are arranged on the corresponding rotary pressing cylinder two. Thus, by adjusting the positions of the three rotary pressing cylinders one, the three rotary pressing cylinders two and the three sets of limiting components, a new type of transformer clamp welding fixture can clamp the clamp bases of different sizes, thereby improving the applicability of a new type of transformer clamp.

[0007] 3. The design that a bottom plate through hole is formed on the upper end surface of the bottom plate and the bottom plate through hole penetrates the upper and lower end surfaces of the bottom plate is the third technical feature of the present utility model. The purpose of such design is as follows: A bottom plate through hole is formed on the upper end surface of the bottom plate, and the bottom plate through hole penetrates the upper and lower end surfaces of the bottom plate. The setting of the bottom plate through hole can not only reduce the total weight of a new type of transformer clamp welding fixture, but also the bottom plate through hole can play a role in removing slag (welding slag) during the welding process.

[0008] Technical solution: A new type of transformer clamp welding fixture, including a bottom plate, three rotary pressing cylinders I and three rotary pressing cylinders II. There are three groups of threaded holes I on the upper end surface of the bottom plate, and the three groups of threaded holes I are circularly distributed, with an included angle of 120° between adjacent two groups of threaded holes I. A set of through holes on the bottom plate of the rotary pressing cylinder I in the rotary pressing cylinder I are aligned with a corresponding set of threaded holes I and then fixedly installed on the bottom plate through bolts; there are three groups of threaded holes II on the upper end surface of the bottom plate, and the three groups of threaded holes II are circularly distributed, with an included angle of 120° between adjacent two groups of threaded holes II. A set of through holes on the bottom plate of the rotary pressing cylinder II in the rotary pressing cylinder II are aligned with a corresponding set of threaded holes II and then fixedly installed on the bottom plate through bolts; there are three groups of limiting components on the upper end surface of the bottom plate, and each group of limiting components includes two limiting blocks I and one limiting block II. One limiting block I is provided on each side of each rotary pressing cylinder II, and one limiting block II is provided on the front side of each rotary pressing cylinder II; when the clamp base is placed on the bottom plate, the three groups of limiting components limit a first cross beam in the clamp base. The inner side surfaces of the two limiting blocks I in the same group of limiting components are respectively in limiting contact with the outer side surfaces of the corresponding first cross beam, and the outer side surface of one limiting block II is in limiting contact with the inner side surface of the corresponding first cross beam. The pressing blocks in the three rotary pressing cylinders II respectively press the upper end surfaces of the corresponding first cross beams in the clamp base, and the pressing blocks in the three rotary pressing cylinders I respectively press the upper end surfaces of the corresponding lug plates in the clamp base.

[0009] Compared with the background technology, the present utility model has the following advantages: First, a new type of transformer clamp welding fixture can cooperate with a welding robot, which not only has high welding efficiency but also more stable welding quality; second, a new type of transformer clamp welding fixture can not only improve the clamping accuracy of the clamp base but also improve the clamping efficiency of the clamp base; third, a new type of transformer clamp welding fixture has good applicability. Brief description of the drawings

[0010] Figure 1 It is a three-dimensional structural schematic diagram of a new type of transformer clamp welding fixture (clamping a clamp base).

[0011] Figure 2 It is a top view structural schematic diagram of a new type of transformer clamp welding fixture (clamping a clamp base).

[0012] Figure 3 It is a top view structural schematic diagram of the clamp base.

[0013] Figure 4 It is a physical diagram of the triangular lower clamp.

[0014] Figure 5 It is a physical diagram of the triangular upper clamp.

[0015] Figure 6 It is a physical diagram when the triangular lower clamping part and the triangular upper clamping part are used in combination in a transformer. Specific implementation mode

[0016] Example 1: Refer to the appendix Figure 1 - Figure 2 . A new type of transformer clamping part welding fixture, including a bottom plate 1, three rotary downward pressing cylinders 1 and three rotary downward pressing cylinders 2. The upper end surface of the bottom plate 1 is provided with three groups of threaded holes 1 and the three groups of threaded holes 1 are circularly distributed, and the included angle between adjacent two groups of threaded holes 1 is 120°. A set of through holes on the bottom plate of the rotary downward pressing cylinder 1 in the rotary downward pressing cylinder 1 are aligned with a corresponding set of threaded holes 1 and then fixedly installed on the bottom plate 1 through bolts; the upper end surface of the bottom plate 1 is provided with three groups of threaded holes 2 and the three groups of threaded holes 2 are circularly distributed, and the included angle between adjacent two groups of threaded holes 2 is 120°. A set of through holes on the bottom plate of the rotary downward pressing cylinder 2 in the rotary downward pressing cylinder 2 are aligned with a corresponding set of threaded holes 2 and then fixedly installed on the bottom plate 1 through bolts; the upper end surface of the bottom plate 1 is provided with three groups of limiting components and each group of limiting components includes two limiting blocks 1 and one limiting block 2. One limiting block 1 is respectively arranged on both sides of each rotary downward pressing cylinder 2 and one limiting block 2 is arranged on the front side of each rotary downward pressing cylinder 2; when the clamping part base frame 1' is placed on the bottom plate 1, the three groups of limiting components limit a first cross beam 2' in the clamping part base frame 1'. The inner side surfaces of the two limiting blocks 1 in the same group of limiting components are respectively in limiting contact with the outer side surfaces of the corresponding first cross beam 2', and the outer side surface of one limiting block 2 is in limiting contact with the inner side surface of the corresponding first cross beam 2'. The pressing blocks in the three rotary downward pressing cylinders 2 respectively press the upper end surfaces of the corresponding first cross beams 2' in the clamping part base frame 1', and the pressing blocks in the three rotary downward pressing cylinders 1 respectively press the upper end surfaces of the corresponding lug plates 4' in the clamping part base frame 1'.

[0017] On the upper end surface of the bottom plate 1, there are three groups of third threaded holes 8, and the three groups of third threaded holes 8 are located outside a corresponding group of first threaded holes. On the upper end surface of the bottom plate 1, there are three groups of fourth threaded holes 9, and the three groups of fourth threaded holes 9 are located outside a corresponding group of second threaded holes. On the upper end surface of the bottom plate 1, there are three groups of fifth threaded holes for installing the second limiting block 7. On the upper end surface of the bottom plate 1, there are three groups of sixth threaded holes 11 for installing the second limiting block 7. The three groups of sixth threaded holes 11 are located inside a corresponding group of fifth threaded holes. On the upper end surface of the second limiting block 7, there is a through hole 12 that penetrates the upper and lower end surfaces of the second limiting block 7. After the through hole 12 of the second limiting block 7 is aligned with the corresponding fifth threaded hole or sixth threaded hole 11, the second limiting block 7 is fixedly installed on the bottom plate 1 through bolts. On the upper end surface of the first limiting block 6, there is a strip-shaped through hole 13 that penetrates the upper and lower end surfaces of the first limiting block 6. On the upper end surface of the bottom plate 1, there are three groups of seventh threaded holes 14, and each group of seventh threaded holes 14 includes two threaded holes. The two threaded holes in the same group of seventh threaded holes 14 are arranged on both sides of the corresponding second rotary pressing cylinder 3.

[0018] On the upper end surface of the bottom plate 1, there is a bottom plate through hole 15 that penetrates the upper and lower end surfaces of the bottom plate 1. The centers of the circles where the three groups of first threaded holes are located coincide with the centers of the circles where the three groups of second threaded holes are located. The three groups of first threaded holes and the three groups of second threaded holes are alternately distributed.

[0019] It should be understood that: Although the above embodiments have made a relatively detailed written description of the design concept of the present invention, these written descriptions are only simple written descriptions of the design concept of the present invention, rather than limitations on the design concept of the present invention. Any combination, addition, or modification that does not exceed the design concept of the present invention falls within the protection scope of the present invention.

Claims

1. A new type of transformer clamping fixture for welding, comprising a bottom plate (1), three rotary pressing cylinders I (2) and three rotary pressing cylinders II (3), and characterized in that: The upper end surface of the bottom plate (1) is provided with three groups of first threaded holes which are circularly distributed, and the included angle between two adjacent groups of first threaded holes is 120°. A set of through holes on the bottom plate of the rotary pressing cylinder one (2) are aligned with a corresponding set of first threaded holes, and then the rotary pressing cylinder one (2) is fixedly installed on the bottom plate (1) through bolts; the upper end surface of the bottom plate (1) is provided with three groups of second threaded holes which are circularly distributed, and the included angle between two adjacent groups of second threaded holes is 120°. A set of through holes on the bottom plate of the rotary pressing cylinder two (3) are aligned with a corresponding set of second threaded holes, and then the rotary pressing cylinder two (3) is fixedly installed on the bottom plate (1) through bolts; the upper end surface of the bottom plate (1) is provided with three groups of limiting components, and each group of limiting components includes two first limiting blocks (6) and one second limiting block (7). One first limiting block (6) is arranged on each side of each rotary pressing cylinder two (3), and one second limiting block (7) is arranged on the front side of each rotary pressing cylinder two (3); when the clamping piece base frame (1') is placed on the bottom plate (1), the three groups of limiting components limit a first cross beam (2') in the clamping piece base frame (1'). The inner side surfaces of the two first limiting blocks (6) in the same group of limiting components are respectively in limiting contact with the outer side surfaces of the corresponding first cross beam (2'), and the outer side surface of one second limiting block (7) is in limiting contact with the inner side surface of the corresponding first cross beam (2'). The pressing blocks in the three rotary pressing cylinders two (3) respectively press the upper end surfaces of the corresponding first cross beams (2') in the clamping piece base frame (1'), and the pressing blocks in the three rotary pressing cylinders one (2) respectively press the upper end surfaces of the corresponding lug plates (4') in the clamping piece base frame (1').

2. A novel transformer clamping part welding fixture according to claim 1, characterized in that: The upper end surface of the bottom plate (1) is provided with three groups of threaded holes Three (8), and the three groups of threaded holes three (8) are located outside a corresponding group of first threaded holes. The upper end surface of the bottom plate (1) is provided with three groups of threaded holes four (9), and the three groups of threaded holes four (9) are located outside a corresponding group of second threaded holes; the upper end surface of the bottom plate (1) is provided with three groups of threaded holes for installing the second limiting blocks (7). The upper end surface of the bottom plate (1) is provided with three groups of threaded holes six (11) for installing the second limiting blocks (7). The three groups of threaded holes six (11) are located inside a corresponding group of threaded holes five. The upper end surface of the second limiting block (7) is provided with a set of through holes (12) which penetrate through the upper and lower end surfaces of the second limiting block (7). The second limiting block (7) is fixedly installed on the bottom plate (1) through bolts after a set of through holes (12) are aligned with the corresponding threaded holes five or threaded holes six (11); the upper end surface of the first limiting block (6) is provided with strip-shaped through holes (13) which penetrate through the upper and lower end surfaces of the first limiting block (6). The upper end surface of the bottom plate (1) is provided with three groups of threaded holes seven (14), and each group of threaded holes seven (14) includes two threaded holes. The two threaded holes in the same group of threaded holes seven (14) are arranged on both sides of the corresponding rotary pressing cylinder two (3).

3. The novel transformer clamp welding fixture according to claim 1, characterized in that: A bottom plate through hole (15) is formed on the upper end surface of the bottom plate (1), and the bottom plate through hole (15) penetrates through the upper and lower end surfaces of the bottom plate (1).

4. A novel transformer clamp welding fixture according to claim 1, characterized in that: The centers of the circles where the three groups of first threaded holes are located coincide with the centers of the circles where the three groups of second threaded holes are located, and the three groups of first threaded holes and the three groups of second threaded holes are alternately distributed.

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