Physical clamping and negative pressure adsorption jig for mobile phone shell

Abstract

This utility model relates to the field of mobile phone casing fixture technology, and discloses a physical clamping and negative pressure adsorption fixture for mobile phone casings, including: a grid-shaped adsorption groove installed on the top of a support plate, and a negative pressure hole installed in the middle of the grid-shaped adsorption groove. By connecting the negative pressure hole to an external vacuum generator through the grid-shaped adsorption groove and the negative pressure hole respectively on the support plate, the mobile phone casing can be adsorbed using the grid-shaped adsorption groove. Since the support plate is also provided with a second clamping block, a second movable block, a second screw, a first clamping block, a first movable block, and a first screw, the spatial positions of the second and first movable blocks can be finely adjusted by adjusting the second and first screws to a suitable position. After the workpiece is placed in, it will not wobble left and right. Relying on the negative pressure adsorption at the bottom, the expected limiting position can be achieved, thus facilitating other operations on the workpiece.

Description

Technical Field

[0001] This utility model relates to the field of mobile phone casing fixture technology, specifically to a physical clamping and negative pressure adsorption fixture for mobile phone casings. Background Technology

[0002] In the field of mobile phone manufacturing and related processing, the mobile phone casing, as a core structural component, requires precise positioning and fixation through fixtures during its production, assembly, and testing processes to ensure processing accuracy, assembly consistency, and product yield. Mobile phone casings are made of various materials, including metals (aluminum alloys, stainless steel, etc.), plastics (PC, ABS, etc.), glass, and composite materials, and their structural designs are becoming increasingly complex, often involving curved shapes, thin-walled structures, and openings / grooves. This places stringent requirements on the fixture's stability, adaptability, and protective performance of the casing. Currently, the industry mainly uses two types of fixtures for fixing mobile phone casings: one type is a purely physical clamping fixture, which uses mechanical grippers, clips, pins, and other structures to apply clamping force to the edges or specific parts of the casing to achieve fixation. The advantages of this type of fixture are its strong clamping force and high positioning accuracy, but it has significant drawbacks: First, the clamping force is concentrated at local contact points, easily causing indentations and scratches on the casing surface, especially for casings with surface coating, anodizing, or thin-walled structures, where the risk of damage is extremely high; second, it has poor adaptability, requiring the replacement of corresponding clamping modules for different sizes and shapes of mobile phone casings, resulting in insufficient versatility and increased production changeover costs and time; third, for curved casings or irregularly shaped structures without clearly defined clamping edges, the clamping stability is poor, easily leading to loosening and displacement, affecting processing accuracy. Another type is the pure negative pressure adsorption fixture, which generates negative pressure through a vacuum pump and uses suction cups to adhere to the surface of the housing for fixation. Its advantages include a large contact area, uniform force distribution, avoidance of localized pressure damage, and strong adaptability to curved surfaces and irregularly shaped structures. However, this type of fixture also has drawbacks: First, the adsorption force is significantly affected by the surface condition of the housing. If the housing surface has oil, dust, or microporous structures, it is easy to cause poor sealing, negative pressure leakage, and thus adsorption failure. Second, for thin-walled housings, negative pressure adsorption may cause elastic deformation of the housing, especially when subjected to external forces during processing, increasing the risk of deformation and affecting product dimensional accuracy. Third, the adsorption fixation response speed is slow; the negative pressure establishment and release process takes time, reducing production efficiency. Fourth, when the housing needs edge processing or circumferential assembly, the adsorption area may conflict with the processing path, limiting the applicable scenarios. In actual production, the processing (such as CNC milling, grinding, and spraying), assembly (such as screen bonding and camera module installation), and inspection (such as dimensional accuracy inspection and appearance inspection) of mobile phone casings require fixtures with stable fixing capabilities to ensure positioning accuracy, while also avoiding damage to the casing surface. Furthermore, they must be adaptable to the universal needs of casings with different structures and materials, and compatible with diverse process scenarios. Existing fixtures that rely solely on physical clamping or pure negative pressure adsorption cannot simultaneously meet these requirements, leading to high product defect rates, high changeover costs, and low production efficiency, thus hindering the efficient development of the mobile phone manufacturing industry. Therefore, there is an urgent need for a fixture that combines the advantages of physical clamping and negative pressure adsorption to address the shortcomings of existing technologies. Utility Model Content

[0003] The purpose of this invention is to provide a physical clamping and negative pressure adsorption fixture for mobile phone casings to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a physical clamping and negative pressure adsorption fixture for mobile phone casings, comprising: A grid-shaped adsorption groove is installed on the top of the support plate, and a negative pressure hole is installed in the middle of the grid-shaped adsorption groove; The first clamping block is provided on the inner side of the top surface of the bearing plate. The bearing plate and the first clamping block are directly connected by a second bolt. The front and rear sides of the first clamping block are provided with first movable blocks. The first clamping block and the first movable blocks are connected by a first screw. The outer side of the top surface of the bearing plate is provided with a second clamping block. The bearing plate and the second clamping block are connected by a second bolt. The side of the second clamping block near the center of the bearing plate is provided with a second movable block. The second movable block and the second clamping block are connected by a second screw.

[0005] The beneficial effects of adopting the above technical solution are as follows: the carrier plate is provided with grid-shaped adsorption grooves and negative pressure holes respectively. The negative pressure holes are connected to an external vacuum generator. The grid-shaped adsorption grooves can be used to adsorb the mobile phone shell. Since the carrier plate is also provided with a second clamping block, a second movable block, a second screw, a first clamping block, a first movable block and a first screw, the spatial position of the second movable block and the first movable block can be finely adjusted by adjusting the second screw and the first screw. When the workpiece is placed in the plate, it will not move left or right. The expected limit can be achieved by relying on the negative pressure adsorption at the bottom, which facilitates other operations on the workpiece.

[0006] As a further improvement of this utility model, the number of the grid-shaped adsorption grooves and negative pressure holes is four, and the four grid-shaped adsorption grooves and negative pressure holes are distributed in a matrix on the support plate.

[0007] The beneficial effect of adopting the above technical solution is that, by providing a matrix-distributed grid-shaped adsorption groove and negative pressure holes on the support plate, this fixture can fix multiple mobile phone cases at the same time.

[0008] As a further improvement of this utility model, the first clamping block is provided with a first movable block and a first screw on both sides near the grid-shaped adsorption groove. A first clamping block, a first movable block and a first screw are provided between two adjacent grid-shaped adsorption grooves. A second clamping block, a second movable block and a second screw are provided opposite each of the first movable blocks.

[0009] The beneficial effects of adopting the above technical solution are: by providing a first clamping block, a first movable block and a first screw between two adjacent grid-shaped adsorption grooves, the mobile phone casing on the two adjacent grid-shaped adsorption grooves can be limited by a first clamping block, thereby reducing the material usage cost.

[0010] As a further improvement of this utility model, the first movable block is connected to the first clamping block by two first screws, and the second movable block is connected to the second clamping block by two second screws.

[0011] The beneficial effects of adopting the above technical solution are: by using two first screws to connect the first movable block to the first clamping block, and using two second screws to connect the second movable block to the second clamping block, the stability of the connection between the first movable block and the first clamping block and the second movable block and the second clamping block are improved.

[0012] As a further improvement of this utility model, the outer side of the bearing plate is provided with a first bolt, and the number of the first bolts is four, which are respectively distributed at the four corners of the bearing plate.

[0013] The beneficial effect of adopting the above technical solution is that the first bolt is provided at each of the four corners of the bearing plate, which facilitates the connection of the bearing plate with other structures.

[0014] As a further improvement of this utility model, the bearing plate is provided with an installation groove adapted to the second clamping block and the first clamping block, and the bearing plate is provided with a bolt groove adapted to the second bolt.

[0015] The beneficial effects of adopting the above technical solution are: by setting the mounting groove and bolt groove, it is convenient to install the second clamping block, the first clamping block and the second bolt. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of the physical clamping and negative pressure adsorption fixture for the mobile phone casing of this utility model; Figure 2 This is a three-dimensional structural diagram of the physical clamping and negative pressure adsorption fixture for the mobile phone casing of this utility model; Figure 3 This utility model relates to a physical clamping and negative pressure adsorption fixture for mobile phone casings. Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the second bolt structure of the physical clamping and negative pressure adsorption fixture for the mobile phone casing of this utility model; Figure 5 This is a schematic diagram of the second movable block structure of the physical clamping and negative pressure adsorption fixture for the mobile phone casing of this utility model; Figure 6 This utility model relates to a physical clamping and negative pressure adsorption fixture for mobile phone casings. Figure 1 Sectional view at point BB.

[0018] In the diagram: 1. Support plate; 2. First bolt; 3. Grid-shaped adsorption groove; 4. Negative pressure hole; 5. First clamping block; 6. First movable block; 7. First screw; 8. Second clamping block; 9. Second movable block; 10. Second screw; 11. Second bolt; 12. Mounting groove; 13. Bolt groove. Detailed Implementation

[0019] 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.

[0020] Please see Figures 1-6 This utility model provides a physical clamping and negative pressure adsorption fixture for mobile phone casings, including: A grid-shaped adsorption groove 3 is installed on the top of the support plate 1, and a negative pressure hole 4 is installed in the middle of the grid-shaped adsorption groove 3. The first clamping block 5 is provided on the inner side of the top surface of the support plate 1. The support plate 1 and the first clamping block 5 are directly connected by the second bolt 11. The front and rear sides of the first clamping block 5 are provided with the first movable block 6. The first clamping block 5 and the first movable block 6 are connected by the first screw 7. The outer side of the top surface of the support plate 1 is provided with the second clamping block 8. The support plate 1 and the second clamping block 8 are connected by the second bolt 11. The side of the second clamping block 8 near the center of the support plate 1 is provided with the second movable block 9. The second movable block 9 and the second clamping block 8 are connected by the second screw 10.

[0021] The beneficial effects of adopting the above technical solution are as follows: the carrier plate 1 is provided with a grid-shaped adsorption groove 3 and a negative pressure hole 4 respectively. The negative pressure hole 4 is connected to an external vacuum generator. The grid-shaped adsorption groove 3 can be used to adsorb the mobile phone shell. Since the carrier plate 1 is also provided with a second clamping block 8, a second movable block 9, a second screw 10, a first clamping block 5, a first movable block 6 and a first screw 7, the spatial position of the second movable block 9 and the first movable block 6 can be finely adjusted by adjusting the second screw 10 and the first screw 7. After adjusting to a suitable position, the workpiece will not shake left and right after being put in. The expected limit can be achieved by relying on the negative pressure adsorption at the bottom, which facilitates other operations on the workpiece.

[0022] In one embodiment of this utility model, there are four grid-shaped adsorption grooves 3 and negative pressure holes 4, which are distributed in a matrix on the support plate 1.

[0023] The beneficial effect of adopting the above technical solution is that, by providing a matrix-distributed grid-shaped adsorption groove 3 and negative pressure holes 4 on the support plate 1, this fixture can fix multiple mobile phone cases at the same time.

[0024] In one embodiment of this utility model, a first movable block 6 and a first screw 7 are provided on both sides of the first clamping block 5 near the grid-shaped adsorption groove 3. A first clamping block 5, a first movable block 6 and a first screw 7 are provided between two adjacent grid-shaped adsorption grooves 3. A second clamping block 8, a second movable block 9 and a second screw 10 are provided opposite each first movable block 6.

[0025] The beneficial effects of adopting the above technical solution are: by providing a first clamping block 5, a first movable block 6 and a first screw 7 between two adjacent grid-shaped adsorption grooves 3, the mobile phone casing on the two adjacent grid-shaped adsorption grooves 3 can be limited by a first clamping block 5, thereby reducing the material usage cost.

[0026] In one embodiment of this utility model, the first movable block 6 is connected to the first clamping block 5 by two first screws 7, and the second movable block 9 is connected to the second clamping block 8 by two second screws 10.

[0027] The beneficial effects of adopting the above technical solution are: by using two first screws 7 to connect the first movable block 6 to the first clamping block 5, and using two second screws 10 to connect the second movable block 9 to the second clamping block 8, the stability of the connection between the first movable block 6 and the first clamping block 5 and the stability of the connection between the second movable block 9 and the second clamping block 8 are improved.

[0028] In one embodiment of this utility model, a first bolt 2 is provided on the outer side of the support plate 1. There are four first bolts 2, which are distributed at the four corners of the support plate 1.

[0029] The beneficial effect of adopting the above technical solution is that the first bolt 2 is provided at each of the four corners of the bearing plate 1, which facilitates the connection of the bearing plate 1 with other structures.

[0030] In one embodiment of this utility model, the support plate 1 is provided with an installation groove 12 that is adapted to the second clamping block 8 and the first clamping block 5, and the support plate 1 is provided with a bolt groove 13 that is adapted to the second bolt 11.

[0031] The beneficial effects of adopting the above technical solution are: by setting the mounting groove 12 and the bolt groove 13, it is convenient to install the second clamping block 8, the first clamping block 5 and the second bolt 11.

[0032] 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 physical clamping and negative pressure adsorption fixture for mobile phone casings, characterized in that, include: A grid-shaped adsorption groove is installed on the top of the support plate, and a negative pressure hole is installed in the middle of the grid-shaped adsorption groove; The first clamping block is provided on the inner side of the top surface of the bearing plate. The bearing plate and the first clamping block are directly connected by a second bolt. The front and rear sides of the first clamping block are provided with first movable blocks. The first clamping block and the first movable blocks are connected by a first screw. The outer side of the top surface of the bearing plate is provided with a second clamping block. The bearing plate and the second clamping block are connected by a second bolt. The side of the second clamping block near the center of the bearing plate is provided with a second movable block. The second movable block and the second clamping block are connected by a second screw.

2. The physical clamping and negative pressure adsorption fixture for mobile phone casings according to claim 1, characterized in that, The number of the grid-shaped adsorption grooves and negative pressure holes is four, and the four grid-shaped adsorption grooves and negative pressure holes are distributed in a matrix on the support plate.

3. The physical clamping and negative pressure adsorption fixture for mobile phone casings according to claim 1, characterized in that, The first clamping block is provided with a first movable block and a first screw on both sides near the grid-shaped adsorption groove. A first clamping block, a first movable block and a first screw are provided between two adjacent grid-shaped adsorption grooves. A second clamping block, a second movable block and a second screw are provided opposite each of the first movable blocks.

4. The physical clamping and negative pressure adsorption fixture for mobile phone casings according to claim 1, characterized in that, The first movable block is connected to the first clamping block by two first screws, and the second movable block is connected to the second clamping block by two second screws.

5. The physical clamping and negative pressure adsorption fixture for mobile phone casings according to claim 1, characterized in that, The outer side of the support plate is provided with four first bolts, which are distributed at the four corners of the support plate.

6. The physical clamping and negative pressure adsorption fixture for mobile phone casings according to claim 1, characterized in that, The support plate is provided with mounting grooves that are adapted to the second clamping block and the first clamping block, and the support plate is provided with bolt grooves that are adapted to the second bolt.

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