A CNC machining positioning fixture for aluminum alloy mobile phone shell

Abstract

The utility model discloses a CNC machining positioning fixture for an aluminum alloy mobile phone shell, which relates to the technical field of tooling and fixtures, and includes a workbench, wherein a machining groove is provided on the upper surface of the workbench, and a plurality of spring cavities are provided inside the workbench, and a clamping spring is fixedly connected to the inner wall of the plurality of spring cavities on one side away from the machining groove, and a connecting rod is fixedly connected to the other end of the plurality of clamping springs, and a clamping plate is fixedly connected to the end of the plurality of connecting rods away from the clamping spring, and a clamping device is provided on both sides of the upper surface of the workbench. The utility model enables the device to pre-estimate mobile phone shells of any size and model when used, and then perform the next step of positioning and fixing, so that the device can fix mobile phone shells of different models, thereby greatly improving the overall practicality of the device.

Description

Technical Field

[0001] The utility model relates to the technical field of tooling fixtures, and in particular to a CNC machining positioning fixture for an aluminum alloy mobile phone shell. Background Art

[0002] Tooling and fixtures are very common parts in the industrial manufacturing industry that assist in production and processing. They fix the workpiece to be processed to facilitate the transportation and transfer of the workpiece, and to carry out related processing techniques such as machining, painting, electroplating, etc. The efficiency of the disassembly and assembly of the tooling and fixtures directly affects the processing time of the entire workpiece. Especially when performing CNC processing, it is often necessary to clamp and fix the parts to be processed with tooling and fixtures. In recent years, the mobile phone industry has developed rapidly. In the CNC processing process of the mobile phone shell, it is necessary to clamp and fix it with a fixture to facilitate grinding, polishing, spraying and other processing techniques.

[0003] After searching, the applicant found that a Chinese patent disclosed "a CNC machining positioning fixture for an aluminum alloy shell", and its publication (announcement) number is "CN219582216U". This patent mainly drives the two moving parts of the same group to move closer to the middle through the synchronous operation of the motors on both sides. Under the transmission action of the transmission parts, the top plate drives the pressure plate to gradually move downward until the pressure plate is pressed on the upper edge of the edge of the mobile phone shell to facilitate subsequent polishing, painting and other processing. There is no need to manually adjust the clamping position, which solves the problem in the related technology that it is difficult to ensure the synchronization of the clamping position of the manually adjusted clamping arm. However, the placement slot of the device is fixed, and it can only clamp a single model of mobile phone shells, and cannot position and fix mobile phone shells of different models, resulting in poor practicality of the device. Utility Model Content

[0004] The purpose of the utility model is to provide an aluminum alloy mobile phone shell CNC processing positioning fixture to solve the problem that the positioning range of the traditional device proposed in the above background technology is fixed, and can only clamp a single model of mobile phone shell, and cannot position and fix mobile phone shells of different models, thereby resulting in poor practicality of the device.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a CNC processing positioning fixture for an aluminum alloy mobile phone shell, comprising a workbench, a processing groove is provided on the upper surface of the workbench, a plurality of spring cavities are provided inside the workbench, a plurality of inner walls of the spring cavities are fixedly connected to a clamping spring on one side away from the processing groove, a plurality of the other ends of the clamping springs are fixedly connected to a connecting rod, a plurality of the ends of the connecting rods away from the clamping springs are fixedly connected to a clamping plate, and clamping devices are provided on both sides of the upper surface of the workbench.

[0006] Preferably, the clamping device includes two fixed blocks, the lower surfaces of the two fixed blocks are fixedly connected to the front and rear of the upper surface of the workbench, the opposite sides of the two fixed blocks are fixedly connected to the electric telescopic rods, the power output ends of the two electric telescopic rods are fixedly connected to the connecting blocks, the two connecting blocks are provided with a cavity inside, the inner wall of the cavity is provided with a movable groove on the side close to the clamping plate, the upper and lower parts of the two inner walls of the cavity are jointly provided with a threaded screw, and the rod walls of the two threaded screws are provided with an adjustment device.

[0007] Preferably, the adjusting device includes a movable plate, which is threadedly connected to the rod wall of the threaded screw, an adjustment groove is opened on the upper surface of the movable plate, a bolt is slidably connected to the inner wall of the adjustment groove, a clamping plate is fixedly connected to the bottom end of the bolt, the top end of the bolt extends to the upper surface of the movable plate through the adjustment groove, and a butterfly nut is threadedly connected to the rod wall of the bolt.

[0008] Preferably, top ends of the plurality of threaded screw rods all pass through the upper part of the inner wall of the cavity and extend to the upper surface of the connecting block, and top ends of the plurality of threaded screw rods are all fixedly connected with a rotating handle.

[0009] Preferably, slide grooves are provided on both left and right sides of the upper surface of the workbench, two sliders are slidably connected below the inner walls of the two slide grooves, and the upper surfaces of the four sliders are fixedly connected to the lower surfaces of four connecting blocks.

[0010] Preferably, a guide column is fixedly connected to the rear side of the right side of the upper surface of the processing groove, and anti-slip pads are fixedly connected to the lower surfaces of the four clamping plates.

[0011] Preferably, four corners of the lower surface of the workbench are fixedly connected with hydraulic telescopic rods, and the bottom ends of the four hydraulic telescopic rods are commonly fixedly connected with a base.

[0012] Technical effects and advantages of the utility model:

[0013] 1. Through the arrangement of electric telescopic rod, connecting block, spring cavity, connecting rod, clamping spring, threaded screw, butterfly nut, clamping plate, fixing block, clamping plate, cavity, movable groove and other structures, when the device is used, mobile phone shells of any size and model can be pre-estimated, and then the next step of positioning and fixing can be performed, so that the device can fix mobile phone shells of different models, thereby greatly improving the overall practicality of the device.

[0014] 2. Through the arrangement of the slide groove, the slider, the guide column rotating handle, the anti-slip pad and other structures, the functional integrity of the device and the basic use function of the device can be guaranteed when the device is in use.

[0015] 3. The height of the workbench can be adjusted by setting the base and the hydraulic telescopic rod, so that the height of the device can be adjusted according to the situation during use, thereby improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0017] Figure 2 It is a front view cross-sectional structural schematic diagram of the connection block of the utility model.

[0018] Figure 3 It is a schematic diagram of the top cross-sectional structure of the workbench of the utility model.

[0019] Figure 4 For the utility model Figure 1 Enlarged structural diagram at A in the middle.

[0020] In the figure: 1. workbench; 2. slide; 3. fixed block; 4. electric telescopic rod; 5. connecting block; 6. connecting rod; 7. clamping plate; 8. guide column; 9. processing groove; 10. rotating handle; 11. slider; 12. cavity; 13. butterfly nut; 14. moving plate; 15. clamping plate; 16. anti-slip pad; 17. moving groove; 18. threaded screw; 19. spring cavity; 20. clamping spring; 21. adjustment groove; 22. bolt; 23. base; 24. hydraulic telescopic rod. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] The utility model provides Figure 1-4The CNC machining positioning fixture for an aluminum alloy mobile phone shell shown in the figure comprises a workbench 1, a machining groove 9 is provided on the upper surface of the workbench 1, a plurality of spring cavities 19 are provided inside the workbench 1, a clamping spring 20 is fixedly connected to the inner wall of the plurality of spring cavities 19 on one side away from the machining groove 9, a connecting rod 6 is fixedly connected to the other end of the plurality of clamping springs 20, a clamping plate 7 is fixedly connected to the end of the plurality of connecting rods 6 away from the clamping spring 20, and the clamping plate 7 can pre-tighten the mobile phone shell, and a clamping device is provided on both sides of the upper surface of the workbench 1, and the clamping device comprises two Fixed blocks 3, the lower surfaces of the two fixed blocks 3 are fixedly connected to the front and rear sides of the upper surface of the workbench 1, the opposite sides of the two fixed blocks 3 are fixedly connected to the electric telescopic rods 4, the power output ends of the two electric telescopic rods 4 are fixedly connected to the connecting blocks 5, the two connecting blocks 5 are provided with cavities 12 inside, the inner wall of the cavity 12 is provided with a moving groove 17 on the side close to the clamping plate 7, the upper and lower sides of the inner walls of the two cavities 12 are jointly provided with threaded screws 18, and the rod walls of the two threaded screws 18 are provided with adjustment devices, which can adjust the length of the splint 15 extended according to the model of the mobile phone case;

[0023] The adjusting device includes a movable plate 14, which is threadedly connected to the rod wall of the threaded screw 18. An adjusting groove 21 is opened on the upper surface of the movable plate 14. A bolt 22 is slidably connected to the inner wall of the adjusting groove 21. The bottom end of the bolt 22 is fixedly connected to a clamping plate 15. The top end of the bolt 22 extends to the upper surface of the movable plate 14 through the adjusting groove 21. The rod wall of the bolt 22 is threadedly connected to a butterfly nut 13. When the device is used, mobile phone shells of any size and model can be pre-estimated, and then the next step of positioning and fixing can be performed, so that the device can fix mobile phone shells of different models, thereby greatly improving the overall practicality of the device.

[0024] like Figure 1 As shown, the four corners of the lower surface of the workbench 1 are fixedly connected with hydraulic telescopic rods 24, and the bottom ends of the four hydraulic telescopic rods 24 are commonly fixedly connected with a base 23, so that the height of the device can be adjusted according to the situation during use, thereby improving the practicality of the device.

[0025] like Figure 1-3As shown, the top ends of the multiple threaded screws 18 all penetrate the upper part of the inner wall of the cavity 12 and extend to the upper surface of the connecting block 5, the top ends of the multiple threaded screws 18 are fixedly connected with a rotating handle 10, and slide grooves 2 are opened on the left and right sides of the upper surface of the workbench 1, and two sliders 11 are slidably connected to the lower parts of the inner walls of the two slide grooves 2. The sliders 11 cooperate with the slide grooves 2 to enable the connecting block 5 to move more stably, and the upper surfaces of the four sliders 11 are fixedly connected to the lower surfaces of the four connecting blocks 5. The guide column 8 is fixedly connected to the rear side of the right side of the upper surface of the processing groove 9, and the lower surfaces of the four splints 15 are fixedly connected with anti-slip pads 16, which can ensure the functional integrity of the device and the basic use function of the device when the device is in use.

[0026] Working principle of the utility model: when the positioning jig is used, the mobile phone shell to be processed is first placed in the processing groove 9, and the camera part of the aluminum alloy mobile phone shell is passed through the guide column 8, and then the four clamping plates 7 are opened, and then the force applied to the connecting rod 6 by the clamping spring 20 is used to pre-tighten the four sides of the mobile phone shell by the four clamping plates 7, and then the four electric telescopic rods 4 are started, and the four electric telescopic rods 4 respectively drive the four connecting blocks 5 to move, and when the four connecting blocks 5 move to the appropriate position, the rotating handle 10 is then turned, and the rotating handle 10 drives the threaded screw 18 to rotate, and then the moving plate 14 moves downward, and then the butterfly nut 13 is turned to release the restriction of the clamping plate 15 and the moving plate 14, so as to pull the clamping plate 15 outward to adjust the extension length of the clamping plate 15, so as to position and fix the mobile phone shell, so as to facilitate the next step of processing;

[0027] When the mobile phone shell is processed and needs to be taken out, the rotating handle 10 is reversed to lift the movable plate 14 upward, thereby releasing the clamping plate 15 from positioning and fixing the mobile phone shell.

[0028] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A CNC machining positioning jig for an aluminum alloy mobile phone housing, comprising a workbench (1), characterized in that: The upper surface of the workbench (1) is provided with a processing groove (9), and the interior of the workbench (1) is provided with a plurality of spring cavities (19). The inner walls of the plurality of spring cavities (19) are fixedly connected to a clamping spring (20) on one side away from the processing groove (9), and the other ends of the plurality of clamping springs (20) are fixedly connected to a connecting rod (6), and the ends of the plurality of connecting rods (6) away from the clamping spring (20) are fixedly connected to a clamping plate (7), and clamping devices are provided on both the left and right sides of the upper surface of the workbench (1).

2. The CNC machining positioning jig for an aluminum alloy mobile phone housing according to claim 1, characterized in that: The clamping device comprises two fixed blocks (3), the lower surfaces of the two fixed blocks (3) are fixedly connected to the front and rear sides of the upper surface of the workbench (1), the opposite sides of the two fixed blocks (3) are fixedly connected to electric telescopic rods (4), the power output ends of the two electric telescopic rods (4) are fixedly connected to connecting blocks (5), the two connecting blocks (5) are provided with cavities (12) inside, the inner wall of the cavity (12) is provided with a movable groove (17) on the side close to the clamping plate (7), the upper and lower sides of the inner walls of the two cavities (12) are jointly provided with threaded screws (18), and the rod walls of the two threaded screws (18) are provided with adjustment devices.

3. The CNC machining positioning jig for an aluminum alloy mobile phone housing according to claim 2, characterized in that: The adjusting device comprises a movable plate (14), wherein the movable plate (14) is threadedly connected to the rod wall of a threaded screw rod (18), an upper surface of the movable plate (14) is provided with an adjusting groove (21), an inner wall of the adjusting groove (21) is slidably connected to a bolt (22), a clamping plate (15) is fixedly connected to the bottom end of the bolt (22), the top end of the bolt (22) extends to the upper surface of the movable plate (14) through the adjusting groove (21), and a butterfly nut (13) is threadedly connected to the rod wall of the bolt (22).

4. The CNC machining positioning jig for an aluminum alloy mobile phone housing according to claim 2, characterized in that: The top ends of the plurality of threaded screw rods (18) all penetrate above the inner wall of the cavity (12) and extend to the upper surface of the connecting block (5), and the top ends of the plurality of threaded screw rods (18) are all fixedly connected to a rotating handle (10).

5. The CNC machining positioning jig for an aluminum alloy mobile phone housing according to claim 1, characterized in that: Slide grooves (2) are provided on both left and right sides of the upper surface of the workbench (1), two sliders (11) are slidably connected below the inner walls of the two slide grooves (2), and the upper surfaces of the four sliders (11) are fixedly connected to the lower surfaces of the four connecting blocks (5).

6. The CNC machining positioning jig for an aluminum alloy mobile phone housing according to claim 3, characterized in that: A guide column (8) is fixedly connected to the rear side of the right upper surface of the processing groove (9), and anti-slip pads (16) are fixedly connected to the lower surfaces of the four clamping plates (15).

7. The CNC machining positioning jig for an aluminum alloy mobile phone housing according to claim 1, characterized in that: The four corners of the lower surface of the workbench (1) are fixedly connected to hydraulic telescopic rods (24), and the bottom ends of the four hydraulic telescopic rods (24) are commonly fixedly connected to a base (23).

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