Inverter box body welding clamp

Abstract

The utility model discloses an inverter box body welding clamp which comprises a base and a fixing frame arranged on the base. The fixing frame is provided with two inner pressing devices used for supporting the interior of the inverter box body. A movable frame and a movable frame driving air cylinder used for driving the movable frame to reciprocate in the X direction are slidably connected to the base in the X direction, a top plate pressing air cylinder is vertically and downwards arranged on the movable frame, and a piston rod of the top plate pressing air cylinder is connected with a top plate pressing block. A side plate pressing air cylinder is horizontally arranged on the movable frame, and a piston rod of the side plate pressing air cylinder is connected with a side plate pressing block. The base is further provided with two end plate pressing air cylinders, and a piston rod of each end plate pressing air cylinder is connected with an end plate pressing block. According to the technical scheme, the inverter box body can be effectively pressed, deformation of the inverter box body in the welding process is avoided, and therefore the product quality is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to welding technical field especially relates to a kind of inverter box body welding fixture. BACKGROUND

[0002] Inverter box body is deformed easily in welding process due to the influence of high temperature on plate material. In the prior art, although the box body is clamped before welding, the purpose is only to fix the box body for convenient welding, and deformation of the box body during welding cannot be avoided. In view of the above technical problems, the utility model provides a new technical scheme, which can effectively clamp and press the inverter box body, meet normal welding, and also ensure that the plate material will not be deformed even if it is subjected to high temperature during welding, thereby improving the welding quality of the box body. SUMMARY

[0003] In view of the shortcomings of the prior art, the utility model aims to provide an inverter box body welding fixture to solve the technical problem of easy deformation of the inverter box body due to high temperature during welding in the prior art.

[0004] To achieve the above purpose, the utility model adopts the following technical scheme:

[0005] An inverter box body welding fixture includes a base and a fixing frame arranged on the base; two inner pressing devices for supporting inside the inverter box body are arranged on the fixing frame; an activity frame is slidably connected to the base along the X direction, and an activity frame driving cylinder is used to drive the activity frame to reciprocate along the X direction, a top plate pressing cylinder is arranged vertically downward on the activity frame, and a top plate pressing block is connected to the piston rod of the top plate pressing cylinder; a side plate pressing cylinder is horizontally arranged on the activity frame, and a side plate pressing block is connected to the piston rod of the side plate pressing cylinder; two end plate pressing cylinders are further arranged on the base, and the piston rod of each end plate pressing cylinder is connected to an end plate pressing block; a baffle is arranged on the side of the fixing frame away from the activity frame.

[0006] Further, in the inverter box body welding fixture, each inner pressing device includes a sliding seat slidably connected to the base along the Y direction, and a sliding seat driving cylinder used to drive the sliding seat to reciprocate along the Y direction; two mounting plate driving cylinders are arranged on each sliding seat along the Y direction in opposite directions, the piston rod of each mounting plate driving cylinder is connected to a mounting plate, and the outward end of each mounting plate is connected to a first inner pressing block.

[0007] Further, in the inverter box body welding fixture, a second inner pressing cylinder is vertically arranged downward on each mounting plate, and the piston rod of each second inner pressing cylinder is connected to a second inner pressing block.

[0008] Further, the inverter box body welding fixture, wherein the movable frame comprises a bottom plate, two side plates and a top plate; the bottom plate is slidably connected with the base; at least one top plate pressing cylinder is arranged on the top plate; at least one top plate pressing cylinder is arranged on each side plate; and at least one side plate pressing cylinder is arranged on each side plate.

[0009] Further, the inverter box body welding fixture, wherein one arc surface pressing cylinder is arranged on each side plate, and a piston rod of each arc surface pressing cylinder is connected with an arc surface pressing block.

[0010] Further, the inverter box body welding fixture, wherein each side plate comprises a vertical arm, an inclined arm and a horizontal arm which are sequentially connected; the top plate pressing cylinder is arranged on the horizontal arm, the arc surface pressing cylinder is arranged on the inclined arm, and the side plate pressing cylinder is arranged on the horizontal arm.

[0011] Beneficial effects: The inverter box body welding fixture has at least the following technical effects compared with the prior art:

[0012] (1) effectively prevent the box body from deforming: by arranging two internal pressing devices on the fixed frame, the internal pressing devices can support the inverter box body from all directions; the sliding seat, the mounting plate driving cylinder and the first internal pressing block in the internal pressing device are matched with each other, and can be adjusted in position according to the size of the box body, and tightly abut against the inner side of the end plate, the inner side of the side plate and the inner side of the top plate to provide stable internal support force; meanwhile, the top plate pressing cylinder, the side plate pressing cylinder and the end plate pressing cylinder on the movable frame drive the corresponding pressing blocks to press the box body from the outside, and the internal and external parts work together to greatly limit the deformation of the box body caused by high temperature during welding, ensure the size accuracy and shape integrity of the box body after welding, and significantly improve the welding quality.

[0013] (2) convenient and efficient operation: the clamping process of the fixture is reasonable in design and easy to operate; before the box body is put in, the positions of the cylinders can be adjusted in advance to avoid interference; after the box body is put in, the cylinders can be controlled to act in sequence to quickly complete clamping; after welding is completed, the box body can be easily taken out by reversing the operation of the cylinders. Such a convenient operation process reduces the labor intensity of the operator, reduces the clamping and dismounting time, helps to improve the overall production efficiency, and meets the needs of large-scale production. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 The inverter box body welding fixture provided by the utility model is shown in the front view.

[0015] Figure 2 The inverter box body welding fixture provided by the utility model is shown in the front view.

[0016] Figure 3The utility model provides a three -dimensional of inverter box body welding fixture Figure 1 In the figure, the movable frame is away from the fixed frame.

[0017] Figure 4 The utility model provides a three -dimensional of inverter box body welding fixture Figure 2 In the figure, the movable frame is away from the fixed frame.

[0018] Figure 5 The utility model provides a three -dimensional of inverter box body welding fixture Figure 3 In the figure, the movable frame is away from the fixed frame, and the figure is observed in the oblique upward angle.

[0019] Figure 6 It is the three -dimensional drawing of two inner pressure tight devices.

[0020] Figure 7 It is the three -dimensional drawing of movable frame.

[0021] Figure 8 It is a three -dimensional drawing of inverter box body, and the figure is observed in the oblique upward angle.

[0022] Figure mark:

[0023] 11, base, 12, fixed frame, 121, slide rail, 122, sliding block, 129, baffle on fixed frame, 13, movable frame, 131, bottom plate of movable frame, 132, side plate of movable frame, 133, top plate of movable frame, 1321, vertical arm of side plate, 1322, inclined arm of side plate, 1323, horizontal arm of side plate,

[0024] 2, inner pressure tight device, 21, slide base, 22, slide base drive cylinder, 23, mounting plate drive cylinder, 24, mounting plate, 25, second inner pressure cylinder, 241, first inner pressure block, 251, second inner pressure block,

[0025] 31, end plate pressure cylinder, 311, end plate pressure block,

[0026] 41, side plate pressure cylinder, 411, side plate pressure block, 42, camber pressure cylinder, 421, camber pressure block, 43, top plate pressure cylinder, 431, top plate pressure block,

[0027] 9, inverter box body, 91, top plate of inverter box body, 92, one end plate of inverter box body, 94, one side plate of inverter box body, 95, another side plate of inverter box body, 96, bottom plate of inverter box body, 900, through -hole on bottom plate of inverter box body, 911, rounded corner of inverter box body. DETAILED DESCRIPTION

[0028] The utility model provides a kind of inverter box body welding fixture, to make the purpose, technical scheme and effect of the utility model more clear, explicit, the following further detailed description of the utility model is made.

[0029] Please refer to Figures 1 to 7 The utility model provides a kind of inverter box body welding fixture. The drawing is only used to explain the structure principle, not proportional with actual product. The drawing only draws the structure related to the invention point of the present application, and some conventional structures are not specifically drawn. In order to observe the internal structure, Figure 3 The top plate 91 and a side plate 95 of the inverter box body are not drawn in the figure.

[0030] The "first", "second" and other words described in this paper, as well as the different names of each similar structure, are only for explanation, not for limiting the present application. In order to facilitate the description, some orientation words are inevitably used in this paper, but these orientation words do not limit the present application.

[0031] In order to facilitate the description, the present application sets X direction and Y direction (as Figure 2 The figure shows). It can be understood that in actual application, even if the coordinate system is changed, the essence of the technical scheme does not change, and it also falls within the protection scope of the present application.

[0032] An inverter box body welding fixture, comprising a base 11 and a fixing frame 12 arranged on the base; two inner pressing devices 2 for supporting inside the inverter box body are arranged on the fixing frame; an activity frame 13 is slidably connected to the base along the X direction, and an activity frame driving cylinder 130 is used to drive the activity frame to reciprocate along the X direction, a top plate pressing cylinder 43 is vertically arranged downward on the activity frame, and the piston rod of the top plate pressing cylinder is connected with a top plate pressing block 431; a side plate pressing cylinder 41 is horizontally arranged on the activity frame, and the piston rod of the side plate pressing cylinder is connected with a side plate pressing block 411; two end plate pressing cylinders 31 are further arranged on the base, and the piston rod of each end plate pressing cylinder is connected with an end plate pressing block 311; a baffle 129 is arranged on the side of the fixing seat away from the activity frame. The baffle 129 is used to support one side plate of the inverter box body. It can be known from Figure 2 and Figure 7 That the baffle 129 abuts against one side plate 94 of the inverter box body.

[0033] In order to facilitate understanding, Figure 8 The perspective view of the inverter box body is drawn. It can be observed from the figure that the inverter box body comprises a top plate 91, two end plates (only one end plate 92 can be observed in the figure) and two side plates (94 and Figure 8 Figure 5 ​), and a bottom plate 96. The bottom plate 96 is provided with a through hole 900.

[0034] Please refer to Figure 6 Further, the inverter box body welding fixture comprises two inner pressing devices 2, each of which comprises a sliding seat 22 slidably connected with the base along the Y direction, and a sliding seat driving cylinder 21 for driving the sliding seat to move back and forth along the Y direction (i.e., the piston rod of one sliding seat driving cylinder faces the positive direction of Y, and the piston rod of the other sliding seat driving cylinder faces the negative direction of Y); each sliding seat is provided with two mounting plate driving cylinders 23 along the opposite directions of Y (i.e., on the same mounting plate, the piston rod of one mounting plate driving cylinder faces the positive direction of X, and the piston rod of the other mounting plate driving cylinder faces the negative direction of X), and the piston rod of each mounting plate driving cylinder is connected with one mounting plate 24, and the outward end of each mounting plate is connected with a first inner pressing block 241. The piston rod of each inner pressing cylinder is outwardly arranged, and after actual clamping, each first inner pressing block simultaneously abuts against the inner side of the end plate, the inner side of the side plate and the inner side of the top plate of the inverter box body, so as to realize the purpose of supporting inside the inverter box body. Specifically, the sliding seat driving cylinder drives the sliding seat to move along the Y direction, so as to control the first inner pressing block to abut against the inner side of the end plate of the inverter box body; the mounting plate driving cylinder drives the mounting plate to move along the X direction, so as to control the first inner pressing block to abut against the inner side of the side plate of the inverter box body; when the inverter box body is placed on the fixed frame and subjected to downward pressing of the top pressing block, the first inner pressing block plays a role of upward supporting. Figure 6 The sliding rail 121 and the sliding block 122 are drawn, and the two inner pressing devices can be connected with the fixed seat through the sliding rail and the sliding block.

[0035] In actual application, the bottom plate 96 of some inverter box bodies also needs to be pressed, and therefore the following can be further provided: each mounting plate 24 is vertically provided with a second inner pressing cylinder 25 downward, and the piston rod of each second inner pressing cylinder is connected with a second inner pressing block 251. Before the inverter box body is placed, the mounting plate driving cylinder drives the mounting plate to move inward, so as to avoid interference of the inner pressing device to the placement of the inverter box body. After the inner pressing device enters the inverter box body, the mounting plate driving cylinder drives the mounting plate to move inward, and then the piston rod of the second inner pressing cylinder extends downward, and the second inner pressing block can press on the bottom plate of the inverter box body.

[0036] As Figure 3As shown, further, the movable frame 13 comprises a bottom plate 131, two side plates 132, and a top plate 133; the bottom plate and the base are slidingly connected; the top plate is provided with at least one top plate pressing cylinder 43; each side plate is respectively provided with at least one top plate pressing cylinder 43; and each side plate is respectively provided with at least one side plate pressing cylinder 41. The bottom plate 131 of the movable frame and the base 11 can be connected by a sliding rail and a sliding block to realize the sliding connection.

[0037] Further, the inverter box body is further provided with a rounded corner 911 (as shown in Figure 7 Further, as shown in Figure 1 and Figure 4 each side plate is respectively provided with an arc surface pressing cylinder 42, and the piston rod of each arc surface pressing cylinder is connected with an arc surface pressing block 421. The bottom of the arc surface pressing block is provided with an arc-shaped groove which is matched with the shape of the rounded corner of the inverter box body. As can be observed from the drawings, the arc surface pressing cylinder is obliquely arranged so that the arc surface pressing block can be aligned with the rounded corner of the inverter box body.

[0038] Further, as shown in Figure 1 and Figure 7 each side plate comprises a vertical arm 1321, an inclined arm 1322, and a horizontal arm 1323 which are connected in sequence; the horizontal arm is provided with a top plate pressing cylinder, the inclined arm is provided with an arc surface pressing cylinder, and the horizontal arm is provided with a side plate pressing cylinder. This arrangement makes the structure of the side plate simple and facilitates the arrangement of the cylinders on the side plate.

[0039] Further, the bottom (i.e., the bottom plate) of the movable frame towards the fixed frame is further provided with an auxiliary pressing block 134. When the movable frame moves towards the fixed frame, the auxiliary pressing block can press on the middle position of the side plate 95 of the inverter box body, thereby playing a role of auxiliary pressing on the side plate of the inverter.

[0040] For the convenience of understanding, the following briefly describes the clamping process:

[0041] (1) Before the inverter box body is put in, the piston rod of the movable frame driving cylinder is retracted so that the movable frame moves away from the fixed frame; the piston rod of the two end plate pressing cylinders extends outward so that the two end plate pressing blocks move away from the fixed frame; each slide seat driving cylinder drives the corresponding slide seat to move inward, and each mounting plate driving cylinder drives the corresponding mounting plate to move inward;

[0042] (2) The inverter box body is placed on the fixed frame at the corresponding position; at this time, the two inner pressing devices extend into the interior of the inverter box body;

[0043] (3) Each sliding seat driving cylinder drives the corresponding sliding seat to move outward, the first inner pressing block is abutted with the inner side of the end plate of the inverter box body when the piston rod of the sliding seat driving cylinder is extended, the first inner pressing block is moved outward and abutted with the inner side of the side plate of the inverter box body when the piston rod of the mounting plate driving cylinder is extended, and the two end plate pressing blocks are pressed on the end plate of the inverter box body when the two end plate pressing cylinders drive the two end plate pressing blocks;

[0044] (4) The piston rod of the movable frame driving cylinder is extended to make the movable frame close to the fixed frame, the piston rod of each top plate pressing cylinder is extended to make each top plate pressing block press on the top plate of the inverter box body, the piston rod of each arc surface pressing cylinder is extended to make the arc surface pressing block press on the rounded corner of the inverter box body, and the piston rod of each side plate pressing cylinder is extended to make each side plate pressing block press on the side plate of the inverter;

[0045] (5) After welding, the inverter box body can be conveniently taken out by repeating step (1).

[0046] The inverter box body can be clamped on the fixed frame and then welded, or can be spot-welded and then welded on the fixed frame, which is not limited herein.

[0047] It can be understood that, for those skilled in the art, equivalent replacement or change can be made according to the technical scheme and the utility model concept of the present application, and all the changes or replacements shall belong to the protection scope of the present application.

Claims

1. An inverter box welding fixture, comprising a base and a fixing frame arranged on the base; characterized in that: The fixed frame is provided with two inner pressing devices for supporting inside the inverter box body; the base is slidably connected with an activity frame along the X direction and an activity frame driving cylinder for driving the activity frame to reciprocate along the X direction, the activity frame is vertically downward provided with a top plate pressing cylinder, the piston rod of the top plate pressing cylinder is connected with a top plate pressing block; the activity frame is horizontally provided with a side plate pressing cylinder, the piston rod of the side plate pressing cylinder is connected with a side plate pressing block; the base is further provided with two end plate pressing cylinders, the piston rod of each end plate pressing cylinder is connected with an end plate pressing block; the fixed base is provided with a baffle away from the activity frame.

2. The inverter box welding fixture of claim 1, wherein: Each inner pressing device comprises a sliding base slidably connected with the base along the Y direction and a sliding base driving cylinder for driving the sliding base to reciprocate along the Y direction; each sliding base is provided with two mounting plate driving cylinders along the Y direction in opposite directions, the piston rod of each mounting plate driving cylinder is connected with a mounting plate, and the outward end of each mounting plate is connected with a first inner pressing block.

3. The inverter box welding fixture of claim 2, wherein: Each mounting plate is vertically downward provided with a second inner pressing cylinder, and the piston rod of each second inner pressing cylinder is connected with a second inner pressing block.

4. The inverter box welding fixture of claim 1, wherein: The activity frame comprises a bottom plate, two side plates and a top plate; the bottom plate is slidably connected with the base; the top plate is provided with at least one top plate pressing cylinder; each side plate is provided with at least one top plate pressing cylinder; and each side plate is provided with at least one side plate pressing cylinder.

5. The inverter box welding fixture of claim 4, wherein: Each side plate is provided with an arc surface pressing cylinder, and the piston rod of each arc surface pressing cylinder is connected with an arc surface pressing block.

6. The inverter box welding fixture of claim 5, wherein: Each side plate comprises a vertical arm, an inclined arm and a horizontal arm connected in sequence; the horizontal arm is provided with a top plate pressing cylinder, the inclined arm is provided with an arc surface pressing cylinder, and the horizontal arm is provided with a side plate pressing cylinder.

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