A vacuum adsorption device for reducing the weight of a complex profile sheet metal part
By combining a vacuum adsorption device and a limiting plate, the problems of machining errors and chemical processing pollution in the weight reduction groove of complex sheet metal parts are solved, and efficient and precise sheet metal parts processing is achieved.
Patent Information
- Application Number
- CN202522077467.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-26
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-26
AI Technical Summary
In the existing technology, the processing of weight reduction grooves for complex sheet metal parts has problems such as large position and thickness dimensional errors, low machining efficiency, environmental pollution and low efficiency of chemical processing, and low product dimensional accuracy.
A vacuum adsorption device is used to fix the sheet metal parts by setting adsorption grooves and vacuum channels on the sheet metal parts and using a vacuum pump to generate negative pressure. Combined with a limiting plate, the sheet metal parts are accurately positioned and pressed, thus achieving high-precision processing of the sheet metal parts.
This reduces the position and thickness dimensional errors of the weight reduction tank, improves production efficiency and product qualification rate, avoids chemical solution contamination, and enhances processing accuracy and efficiency.
Smart Images
Figure CN224674709U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sheet metal processing technology, specifically to a vacuum adsorption device for reducing the weight of complex-shaped sheet metal parts. Background Technology
[0002] Sheet metal parts used in the aerospace field often have complex shapes. In order to reduce the overall weight, the sheet metal surface is often designed with weight-reducing grooves while meeting the necessary strength and rigidity requirements.
[0003] Currently, the main processing methods for weight reduction grooves are: 1. Machining: Before forming, the weight reduction groove is first machined on the sheet metal blank, and then formed. The disadvantage is that the dimensional errors such as the position and thickness of the weight reduction groove are large after forming, making it difficult to meet product requirements; 2. Chemical processing: After the part is formed, a protective layer is coated on the parts of the part where the material does not need to be removed. The material of the weight reduction groove parts without protective layer is dissolved by chemical reagent corrosion. After the work is completed, the protective layer is removed. The disadvantages are that the chemical solution pollutes the environment, the process is complicated, the work efficiency is low, and the product dimensional accuracy is low. Utility Model Content
[0004] The purpose of this utility model is to provide a vacuum adsorption device for weight reduction of complex sheet metal parts, so as to solve the problems mentioned in the background art, such as large dimensional errors in the position and thickness of the weight reduction groove after mechanical processing, which makes it difficult to meet product requirements; and the problems of chemical processing polluting the environment with chemical solutions, complex processes, low working efficiency, and low product dimensional accuracy.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a vacuum adsorption device for weight reduction of complex-shaped sheet metal parts, comprising an adsorption base, a sheet metal bonding surface protruding upward from the upper surface of the adsorption base, an adsorption groove formed on the upper surface of the sheet metal bonding surface, a vacuum channel formed on the side wall of the adsorption base, the vacuum channel being connected to the adsorption groove, an installation platform provided at the outer edge of the adsorption base and outside the sheet metal bonding surface, a transverse limiting plate provided on the upper surface of the sheet metal bonding surface, a longitudinal limiting plate provided on the upper surface of the sheet metal bonding surface, the transverse limiting plate and the longitudinal limiting plate being set at right angles, an installation seat provided on the upper surface of the installation platform at a position corresponding to the transverse limiting plate and the longitudinal limiting plate, a sealing strip provided along the outer contour of the adsorption groove, and a lifting hole penetrating through the lower end of the side wall of the adsorption base.
[0006] Preferably, the horizontal limiting plate and the vertical limiting plate are provided with interlocking slots at their intersecting positions, and the horizontal limiting plate and the vertical limiting plate are connected by interlocking slots. The lower ends of both ends of the horizontal limiting plate and the vertical limiting plate are provided with mounting heads, and the mounting heads are fixedly connected to the mounting base by pins. The lower ends of the horizontal limiting plate and the vertical limiting plate are correspondingly arranged with the upper surface profile of the sheet metal bonding surface, and the lower part of the horizontal limiting plate and the vertical limiting plate is provided with slots.
[0007] Preferably, a vacuum system is connected to the vacuum channel via a quick-connect fitting. The vacuum system includes a vacuum pump, and the vacuum pump is connected to a vacuum pressure gauge and a ball valve via a vacuum pipeline.
[0008] Preferably, one side of the mounting platform has a recessed process groove, and the portion of the mounting seat corresponding to the working groove is fixedly connected to the process groove by bolts.
[0009] Preferably, the lower surface of the adsorption base is recessed upward to form a weight-reducing groove, and the inner cavity of the weight-reducing groove corresponds to the profile of the sheet metal bonding surface.
[0010] Compared with the prior art, the beneficial effects of this utility model are: this utility model replaces the traditional machining process, reduces the dimensional errors such as the position and thickness of the weight reduction groove after forming, and has a simple structure and easy positioning and clamping, effectively improving production efficiency and product qualification rate, and solving the problems of chemical solution pollution and low product dimensional accuracy caused by chemical processing. Attached Figure Description
[0011] Figure 1 This is an isometric view of the main structure of this utility model; Figure 2 This is a front view schematic diagram of the main structure of this utility model; Figure 3 This is an axonometric view of the bottom surface of the main structure of this utility model; Figure 4 This is an isometric view of the adsorption base structure of this utility model; Figure 5 This is an isometric view of the transverse and longitudinal limiting plates of this utility model.
[0012] In the diagram: 1-Adsorption base, 2-Sheet metal bonding surface, 3-Adsorption groove, 4-Vacuum channel, 5-Mounting platform, 6-Horizontal limiting plate, 7-Vertical limiting plate, 8-Mounting seat, 9-Assembly slot, 10-Mounting end, 11-Slot, 12-Process groove, 13-Weight reduction groove, 14-Sealing strip, 15-Lifting hole. Detailed Implementation
[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0014] Please see Figure 1-5 This utility model provides a vacuum adsorption device for weight reduction of complex-shaped sheet metal parts, including an adsorption base 1. The upper surface of the adsorption base 1 has a sheet metal bonding surface 2 protruding upwards. The upper surface of the sheet metal bonding surface 2 has an adsorption groove 3. The side wall of the adsorption base 1 has a vacuum channel 4, which is connected to the adsorption groove 3. The outer edge of the adsorption base 1 and the outer side of the sheet metal bonding surface 2 has a mounting platform 5. The upper surface of the sheet metal bonding surface 2 has a transverse limiting plate 6 and a longitudinal limiting plate 7. The transverse limiting plate 6 and the longitudinal limiting plate 7 are set at right angles. The upper surface of the mounting platform 5 has a mounting seat 8 at a position corresponding to the transverse limiting plate 6 and the longitudinal limiting plate 7. The adsorption groove 3 has a sealing strip 14 along its outer contour. The lower end of the side wall of the adsorption base 1 has a lifting hole 15.
[0015] When processing sheet metal parts, first place the sheet metal part on the upper surface of the adsorption base 1. Roughly position the sheet metal part using the sheet metal bonding surface 2 and its surrounding contour. Then, connect the corresponding horizontal limiting plate 6 and vertical limiting plate 7 to the mounting base 8 via pins. The mounting base 8 is fixed to the mounting table 5 with bolts. The horizontal limiting plate 6 and vertical limiting plate 7 can accurately position and press the sheet metal part onto the sheet metal bonding surface 2. Turn on the vacuum pump and evacuate the vacuum system of the adsorption tank 3 through the vacuum channel 4. Ensure a firm seal by setting a sealing strip 14 around the adsorption tank 3. Observe the vacuum pressure reading to determine if the processing is complete. When the process requirements are met, it indicates that the clamping force (adsorption force) of the parts meets the processing requirements, and the sheet metal parts can be processed. At this time, pull out the pin, remove the horizontal limiting plate 6 and the vertical limiting plate 7. The sheet metal parts are firmly positioned and clamped on the sheet metal bonding surface 2 by vacuum adsorption force. Then, the weight reduction groove is milled according to the process. After the parts are processed, turn off the vacuum pump and open the ball valve to quickly balance the internal and external air pressure of the adsorption base, which makes it easy to remove the sheet metal parts and saves clamping time. By inserting the lifting rod through the lifting hole 15, the entire vacuum adsorption device can be easily lifted and moved by the cooperation of the lifting equipment and the lifting hole 15.
[0016] The transverse limiting plate 6 and the longitudinal limiting plate 7 are provided with interlocking slots 9 at their overlapping positions. The transverse limiting plate 6 and the longitudinal limiting plate 7 are connected by interlocking slots 9. Mounting ends 10 are provided at the lower ends of both ends of the transverse limiting plate 6 and the longitudinal limiting plate 7. The mounting ends 10 are fixedly connected to the mounting base 8 by pins. The lower ends of the transverse limiting plate 6 and the longitudinal limiting plate 7 are correspondingly arranged to the upper surface profile of the sheet metal bonding surface 2. A slot 11 is provided at the lower end of the 7. The horizontal limiting plate 6 and the vertical limiting plate 7 are connected at a right angle by the splicing slot 9 to ensure the uniformity of pressure applied to the sheet metal parts. The mounting end 10 is fixedly connected to the mounting base 8 by the pin to ensure the ease of installation and disassembly of the horizontal limiting plate 6 and the vertical limiting plate 7. The slot 11 is provided at the corresponding positions of the horizontal limiting plate 6 and the vertical limiting plate 7 to make way for the special structure on the sheet metal parts and to avoid interference when the horizontal limiting plate 6 and the vertical limiting plate 7 apply pressure to the sheet metal parts.
[0017] A vacuum system is connected to the vacuum channel 4 via a quick-connect connector. The vacuum system includes a vacuum pump, which is connected to a vacuum pressure gauge and a ball valve via a vacuum pipeline. A vacuum is generated between the adsorption tank 3 and the sheet metal parts through the vacuum system and the vacuum channel 4. The vacuum system and its related structures are all existing technologies.
[0018] The mounting platform 5 on one side is recessed and has a process groove 12. The mounting seat 8 corresponding to the working groove 12 is fixedly connected to the process groove 12 by bolts to reduce interference to the subsequent milling of the weight reduction groove.
[0019] The lower surface of the adsorption base 1 is recessed upward to form a weight reduction groove 13. The inner cavity of the weight reduction groove 13 is corresponding to the shape of the sheet metal bonding surface 2, thereby reducing the weight of the overall vacuum adsorption device.
[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A vacuum adsorption device for weight reduction of complex-shaped sheet metal parts, characterized in that: The device includes an adsorption base (1), on which a sheet metal bonding surface (2) protrudes upward from the upper surface. An adsorption groove (3) is formed on the upper surface of the sheet metal bonding surface (2). A vacuum channel (4) is formed on the side wall of the adsorption base (1). The vacuum channel (4) is connected to the adsorption groove (3). An installation platform (5) is provided at the outer edge of the adsorption base (1) and on the outer side of the sheet metal bonding surface (2). A transverse limiting plate (6) is provided on the upper surface of the sheet metal bonding surface (2). A longitudinal limiting plate (7) is provided on the upper surface of the sheet metal bonding surface (2). The transverse limiting plate (6) and the longitudinal limiting plate (7) are set at right angles. An installation seat (8) is provided on the upper surface of the installation platform (5) at the position corresponding to the transverse limiting plate (6) and the longitudinal limiting plate (7). A sealing strip (14) is provided along the outer contour of the adsorption groove (3). A lifting hole (15) is provided through the lower end of the side wall of the adsorption base (1).
2. The vacuum adsorption device for weight reduction of complex-shaped sheet metal parts according to claim 1, characterized in that: The horizontal limiting plate (6) and the vertical limiting plate (7) are provided with a splicing slot (9) at their intersecting positions. The horizontal limiting plate (6) and the vertical limiting plate (7) are spliced and connected through the splicing slot (9). The lower ends of the horizontal limiting plate (6) and the vertical limiting plate (7) are provided with mounting ends (10). The mounting ends (10) are fixedly connected to the mounting base (8) by pins. The lower ends of the horizontal limiting plate (6) and the vertical limiting plate (7) are correspondingly set to the upper surface profile of the sheet metal bonding surface (2). The lower part of the horizontal limiting plate (6) and the vertical limiting plate (7) is provided with a slot (11).
3. The vacuum adsorption device for weight reduction of complex-shaped sheet metal parts according to claim 1, characterized in that: The vacuum channel (4) is connected to a vacuum system via a quick-connect fitting. The vacuum system includes a vacuum pump, and the vacuum pump is connected to a vacuum pressure gauge and a ball valve via a vacuum pipeline.
4. The vacuum adsorption device for weight reduction of complex-shaped sheet metal parts according to claim 1, characterized in that: The mounting platform (5) on one side is recessed and has a process groove (12). The mounting base (8) corresponding to the process groove (12) is fixedly connected to the process groove (12) by bolts.
5. The vacuum adsorption device for weight reduction of complex-shaped sheet metal parts according to claim 1, characterized in that: The lower surface of the adsorption base (1) is recessed upward to form a weight reduction groove (13), and the inner cavity surface of the weight reduction groove (13) corresponds to the surface of the sheet metal bonding surface (2).