Large thin-wall bending plate tool

Abstract

The embodiment of the utility model discloses a large-scale thin-wall plate bending tool which comprises a bending column, a working table, a clamping device, a clamping device and a clamping device, the bending column is arranged in the center of the working table, and the size of the outer circle of the bending column is the same as that of the inner circle of a formed workpiece; and the pressing pieces are arranged on the bent column and used for pressing different parts of the workpiece to be machined. By means of the bent column with the boundary dimension the same as the inner arc size of the workpiece and the pressing piece arranged on the bent column, the workpiece to be machined is stably positioned on the bent column, follow-up hole machining is facilitated, the machining problem of a large irregular bent cover plate is solved, machining efficiency is improved, and potential quality hazards caused by unstable clamping are eliminated.

Description

Technical Field

[0001] The utility model relates to the field of machining, in particular to a large thin-walled bent plate tooling. Background Art

[0002] For a certain type of bent cover plate, its inner arc is 467.2 mm, arc length is 480 mm, and wall thickness is 3 mm. There are the following processing difficulties for this bent cover plate: the inner and outer shapes are irregular large bent parts, the wall thickness is only 3 mm, and it is not easy to clamp and position the parts. Since the outer perimeter and side holes of the shape need to be processed, if the clamping and positioning are unstable, it is easy to vibrate during processing, posing a quality hazard.

[0003] Aiming at the problem of difficult clamping of the bent cover plate in the prior art, there is currently no effective solution. Content of the Utility Model

[0004] To solve the above problems, the utility model provides a large thin-walled bent plate tooling. By pressing the workpiece to be processed against the outer wall of the bent column through a pressing member, the workpiece to be processed is stably positioned, and the clamping stability is improved.

[0005] To achieve the above object, the utility model provides a large thin-walled bent plate tooling, including: a bent column, which is arranged at the center of the workbench, and the outer diameter of the bent column is the same as the inner diameter of the formed workpiece; a plurality of pressing members, which are arranged on the bent column and used to press different parts of the workpiece to be processed.

[0006] Further optionally, the pressing member includes a pressing plate and a screw; the pressing plate is fixed on the outer wall of the bent column and used to press the edge of the workpiece to be processed, and the middle of the pressing plate is open; the screw passes through the opening of the pressing plate and is threadedly connected with the bent column, and a nut is threadedly connected to the end of the screw located outside the pressing plate. When the nut is tightened, the pressing plate is pressed.

[0007] Further optionally, the pressing member includes a pressing piece; the pressing piece is fixed on the outer wall of the bent column; on one side surface of the pressing plate, it is connected to the pressing piece near one end position and presses the workpiece to be processed near the other end position.

[0008] Further optionally, the pressing plate is connected to the pressing piece through a rotating shaft.

[0009] Further optionally, there are four pressing members, and the four pressing members respectively press the four corners of the workpiece to be processed.

[0010] Further optionally, positioning pin holes corresponding to the workpiece to be processed are provided on the outer wall of the bent column; a positioning pin passes through the workpiece to be processed and enters the positioning pin hole to position the workpiece to be processed.

[0011] Further optionally, a support pin hole is formed in the outer wall of the bent column; one end of the support pin enters the support pin hole, and the other end protrudes from the outer wall of the bent column for supporting the workpiece to be processed.

[0012] Further optionally, there are two support pin holes, and the two support pin holes are arranged on the same horizontal line.

[0013] The above technical solution has the following beneficial effects: By using a bent column with the same outer dimension as the inner arc dimension of the workpiece and arranging a pressing member on the bent column, the workpiece to be processed is stably positioned on the bent column, which facilitates subsequent hole processing, solves the processing problem of large irregular bent covers, improves the processing efficiency, and eliminates the quality hidden danger caused by unstable clamping. Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0015] Figure 1 is a schematic structural diagram of a large thin-walled bent plate tooling provided by an embodiment of the present invention;

[0016] Figure 2 is a schematic top view structural diagram of a large thin-walled bent plate tooling provided by an embodiment of the present invention.

[0017] Reference numerals: 1 - workbench; 2 - bent column; 3 - support pin; 4 - pressing member; 401 - pressing plate; 402 - screw rod; 403 - nut; 5 - workpiece to be processed. Detailed Embodiments

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0019] To solve the problem of difficult positioning of bent covers in the prior art, an embodiment of the present invention provides a large thin-walled bent plate tooling, Figure 1 is a schematic structural diagram of a large thin-walled bent plate tooling provided by an embodiment of the present invention, as Figure 1As shown in the figure, the tooling includes: a bent column 2, which is arranged at the center of the workbench 1, and the outer diameter of the bent column 2 is the same as the inner diameter of the formed workpiece; a plurality of pressing members 4, which are arranged on the bent column 2 and used to press different parts of the workpiece 5 to be processed.

[0020] Figure 2 is a top view structural schematic diagram of the large thin-walled bent plate tooling provided by the embodiment of the present invention. As Figure 1 、 Figure 2 shown, the bent column 2 is a hollow cylindrical structure, and its hollow structure can reduce the overall weight of the bent column 2 and facilitate the lifting of the bent column 2 through the installation equipment.

[0021] The outer dimension of the bent column 2 is the same as the inner arc dimension of the workpiece 5 to be processed, so as to ensure that the inner surface of the workpiece 5 to be processed can be attached to the outer surface of the bent column 2, thereby increasing the stability of the workpiece 5 to be processed after the two are connected.

[0022] In addition, as Figure 1 、 Figure 2 shown, the bent column 2 is pressed against the center of the workbench 1 with a convex platform, and the angle adjustment of the workpiece 5 to be processed can be completed by controlling the workbench 1 during workpiece processing.

[0023] A plurality of pressing members 4 are also arranged on the outer wall of the bent column 2, and the plurality of pressing members 4 jointly press the workpiece 5 to be processed to improve the positioning stability of the workpiece 5 to be processed.

[0024] Furthermore, the position and quantity of the pressing members 4 can be adjusted according to different workpieces, and the position of pressing the workpiece 5 to be processed can also be exchanged according to the actual situation, so as to ensure that workpieces of different models can be effectively positioned on the bent column 2.

[0025] As an optional implementation manner, the pressing member 4 includes a pressing plate 401 and a screw 402; the pressing plate 401 is fixed on the outer wall of the bent column 2 and used to press the edge of the workpiece 5 to be processed, and the middle of the pressing plate 401 is open; the screw 402 passes through the opening of the pressing plate 401 and is threadedly connected to the bent column 2, and a nut 403 is threadedly connected to the end of the screw 402 located outside the pressing plate 401, and the nut 403 presses the pressing plate 401 when tightened.

[0026] As Figure 1As shown in the figure, the pressing member 4 includes a pressing plate 401 and a screw 402. One part of the side surface of the pressing plate 401 is connected to the outer wall of the bending column 2, and the other part is used to press the edge of the workpiece 5 to be processed. The middle of the pressing plate 401 is open. The screw 402 passes through the middle opening and is threadedly connected to the outer wall of the bending column 2, and a part of it protrudes from the surface of the pressing plate 401. A nut 403 can be threadedly connected to the protruding end of the pressing plate 401. By tightening the nut 403, the pressing plate 401 is pressed, and then the pressing member 4 presses the edge of the workpiece 5 to be processed.

[0027] As an alternative embodiment, the pressing member 4 includes a pressing piece; the pressing piece is fixed on the outer wall of the bending column 2; on one side surface of the pressing plate 401, it is connected to the pressing piece near one end, and the position near the other end presses the workpiece 5 to be processed.

[0028] Furthermore, the pressing member 4 further includes a pressing piece. The pressing piece is fixed on the outer wall of the bending column 2, and a plurality of fixing holes are formed therein. The position of the pressing plate 401 near one end is fixed to the pressing piece through the fixing holes, and there is a certain gap between the position near the other end and the bending column 2 for clamping the edge of the workpiece 5 to be processed. When the edge of the workpiece 5 to be processed enters the gap, by tightening the nut 403, the pressing plate 401 presses the workpiece 5 to be processed. The pressing plate 401 can be fixed by replacing different fixing holes to increase the adjustment range of the pressing member 4 and improve the flexibility of positioning.

[0029] As an alternative embodiment, the pressing plate 401 is connected to the pressing piece through a rotating shaft.

[0030] The pressing plate 401 is connected to the pressing piece through a rotating shaft. The pressing plate 401 can rotate relative to the pressing piece, so as to expand the movable range of the pressing plate 401 and press workpieces of different models.

[0031] As an alternative embodiment, there are four pressing members 4, and the four pressing members 4 respectively press the four corners of the workpiece 5 to be processed.

[0032] As Figure 1 shown, this embodiment provides four pressing members 4, and the four pressing members 4 respectively press at the four corners of the workpiece 5 to be processed, thereby improving the positioning stability of the workpiece 5 to be processed.

[0033] As an alternative embodiment, positioning pin holes corresponding to the workpiece 5 to be processed are formed on the outer wall of the bending column 2; the positioning pins pass through the workpiece 5 to be processed and enter the positioning pin holes for positioning the workpiece 5 to be processed.

[0034] The bent column 2 is also provided with positioning pin holes. Since there are multiple fixing holes on the surface of the workpiece 5 to be machined, the positioning pin holes can be opened according to the positions of some of the fixing holes on the workpiece 5 to be machined, so as to ensure that the workpiece 5 to be machined can be positioned on the outer wall of the bent column 2 through the positioning pins. During actual fixing, the workpiece 5 to be machined can be first positioned at a predetermined position on the outer wall of the bent column 2 through the positioning pins, and then the workpiece 5 to be machined is pressed by a plurality of pressing members 4.

[0035] As an alternative embodiment, as Figure 1 shown, support pin holes are provided on the outer wall of the bent column 2; one end of the support pin 3 enters the support pin hole, and the other end protrudes from the outer wall of the bent column 2 for supporting the workpiece 5 to be machined.

[0036] As Figure 1 shown, support pin holes are provided on the outer wall of the bent column 2, and a support pin 3 is provided therein. The support pin 3 can be used to support the bottom of the workpiece 5 to be machined, thereby giving a support force to the workpiece 5 to be machined.

[0037] As an alternative embodiment, as Figure 1 shown, there are two support pin holes, and the two support pin holes are arranged on the same horizontal line.

[0038] As Figure 1 shown, two support pin holes are provided on the outer wall of the bent column 2, and the workpiece 5 to be machined is supported by the support pins 3 inserted into the two support pin holes. The centers of the two support pin holes are on the same horizontal line. When the workpiece 5 to be machined is placed, ensure that the weights on both sides are roughly the same to improve stability.

[0039] The above technical solution has the following beneficial effects: By using a bent column with an outer dimension the same as the inner arc dimension of the workpiece and arranging pressing members on the bent column, the workpiece to be machined is stably positioned on the bent column, which is convenient for subsequent hole machining, solves the processing problem of large irregular bent covers, improves the processing efficiency, and eliminates the quality hidden dangers caused by unstable clamping.

[0040] The specific embodiments of the above utility model further elaborate on the purpose, technical solution and beneficial effects of the present utility model. It should be understood that the above content is only the specific embodiments of the present utility model and is not used to limit the protection scope of the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A large thin-walled plate bending tool, characterized in that: include: A curved column, wherein the curved column is arranged at the center of the workbench, and the outer circle size of the curved column is the same as the inner circle size of the formed workpiece; A plurality of clamping members are arranged on the curved column and are used to clamp different parts of the workpiece to be processed.

2. The large thin-walled plate bending tool according to claim 1 is characterized in that: The pressing member comprises a pressing plate and a screw; The pressing plate is fixed on the outer wall of the curved column and is used to press the edge of the workpiece to be processed, and the middle part of the pressing plate is open; The screw rod passes through the opening of the pressing plate and is threadedly connected to the bent column, and the end of the screw rod located outside the pressing plate is threadedly connected to a nut, and the nut presses the pressing plate when it is tightened.

3. The large thin-walled plate bending tool according to claim 2 is characterized in that: The pressing member includes a pressing sheet; The pressing sheet is fixed on the outer wall of the curved column; A side surface of the pressing plate is connected to the pressing sheet at a position close to one end, and the workpiece to be processed is pressed at a position close to the other end.

4. The large thin-walled plate bending tool according to claim 3 is characterized in that: The pressing plate is connected to the pressing sheet via a rotating shaft.

5. The large thin-walled plate bending tool according to claim 1 is characterized in that: There are four clamping members, and the four clamping members respectively clamp the four corners of the workpiece to be processed.

6. The large thin-walled plate bending tool according to claim 1 is characterized in that: The outer wall of the curved column is provided with a positioning pin hole corresponding to the workpiece to be processed; The positioning pin passes through the workpiece to be processed and enters the positioning pin hole, so as to position the workpiece to be processed.

7. The large thin-walled plate bending tool according to claim 6 is characterized in that: A support pin hole is provided on the outer wall of the curved column; One end of the support pin enters the support pin hole, and the other end protrudes from the outer wall of the curved column, so as to support the workpiece to be processed.

8. The large thin-walled plate bending tool according to claim 7 is characterized in that: There are two supporting pin holes, and the two supporting pin holes are arranged on the same horizontal line.

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