Positioning and drilling device for aluminum alloy casting shell machining

Abstract

The positioning and drilling device for machining the aluminum alloy casting shell comprises a protective cover shell, a rectangular fixing plate is fixed to the inner wall of one side of the protective cover shell through bolts, rectangular through grooves which are symmetrically distributed are formed in the outer wall of one side of the rectangular fixing plate in a penetrating mode, and sliding blocks are connected to the inner walls of the rectangular through grooves in a sliding and inserted mode; a two-way screw rod is in threaded connection with the middles of the two sliding blocks, a servo motor is connected to one side of the two-way screw rod through a coupler, a hydraulic telescopic rod is fixed to the outer wall of one side of the top of the protective cover shell through bolts, and an annular fixing base is fixed to a piston rod at the top of the hydraulic telescopic rod. When an aluminum alloy casting shell is fixedly drilled, the protective cover shell arranged on the side face can prevent generated chippings from splashing, the chip removal hopper is arranged at the bottom of the protective cover shell, the chippings are directly blown through the air injection gun after machining is completed, and therefore the chippings can be directly discharged from the bottom in a concentrated mode, and the machining efficiency is improved. And the time consumed by subsequent cleaning and maintenance is reduced.

Description

Technical Field

[0001] This utility model relates to the field of aluminum alloy casting processing technology, and in particular to a positioning drilling device for processing the outer shell of aluminum alloy castings. Background Technology

[0002] Aluminum alloy castings refer to equipment and components made from pure aluminum or aluminum alloys using a casting process. Generally, molten aluminum or aluminum alloy is poured into a mold cavity using a sand mold or metal mold. The resulting aluminum or aluminum alloy parts of various shapes and sizes are commonly referred to as aluminum die castings. During machining, aluminum alloy castings require drilling. However, existing methods for drilling holes in aluminum alloy casting shells still present some challenges:

[0003] 1. Poor adaptability. When drilling holes in existing aluminum alloy casting shells, it is not possible to quickly adapt and fix them to different sizes of aluminum alloy casting shells. This results in a lot of time being spent fixing aluminum alloy casting shells of different sizes, thereby reducing the overall processing efficiency.

[0004] 2. Cumbersome cleaning and maintenance. During the drilling process of existing aluminum alloy casting shells, metal shavings generated during drilling remain on the drilling equipment and are scattered on the ground, resulting in a large amount of subsequent cleaning and maintenance work and inconvenience. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a positioning drilling device for machining aluminum alloy casting shells.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A positioning drilling device for machining aluminum alloy casting shells includes a protective cover. A rectangular fixing plate is bolted to one inner wall of the protective cover, and a rectangular through slot is symmetrically distributed on one outer wall of the rectangular fixing plate. Sliding blocks are slidably inserted into the inner wall of the rectangular through slots, and a bidirectional lead screw is screwed to the middle of the two sliding blocks. A servo motor is connected to one side of the bidirectional lead screw via a coupling. A hydraulic telescopic rod is bolted to one outer wall of the top of the protective cover. An annular fixing seat is fixed to the piston rod at the top of the hydraulic telescopic rod, and drills are fixed to the inner wall of the annular fixing seat at equal intervals. The output shaft of the drills is connected to a drill rod.

[0008] As a further improvement of this utility model: the outer walls of the two sliding blocks are welded with arc-shaped expansion blocks, and the side walls of the arc-shaped expansion blocks are bonded with anti-slip pads.

[0009] As a further improvement of this utility model: the bottom outer wall of the rectangular fixing plate has symmetrically distributed guide grooves, and the inner wall of the guide groove is slidably connected to a guide rod.

[0010] As a further embodiment of this utility model: a fixed support plate is welded to the outer wall of the same side of the two guide rods, and an electric telescopic rod is fixed to the bottom of the fixed support plate by screws.

[0011] As a further embodiment of this utility model: a servo cylinder is fixed to the outer wall of the top side of the fixed support plate by screws, and the piston rod of the servo cylinder is connected to a positioning clamping block.

[0012] As a further improvement of this utility model: both sides of the servo cylinder are provided with positioning blocks, and circular through slots are opened on the positioning blocks. Balance guide rods are welded to the outer walls of both ends of the back of the positioning clamping block, and the balance guide rods and the circular through slots are connected in an interlocking manner.

[0013] As a further improvement of this utility model: a chip discharge hopper is welded to the bottom inner wall of the protective cover, and support legs are welded to the four corners of the chip discharge hopper.

[0014] Compared with the prior art, this utility model provides a positioning drilling device for machining aluminum alloy casting shells, which has the following advantages:

[0015] 1. The positioning drilling device of this design utilizes arc-shaped expansion blocks with adjustable spacing to quickly insert into the inner wall of the aluminum alloy casting shell for rapid clamping and fixing. This quickly fixes the shell, reducing the time required for traditional fixing methods. Furthermore, positioning clamps are provided at the ends of the shell for auxiliary fixing, thus effectively fixing the shell and preventing displacement during drilling.

[0016] 2. The positioning drilling device of this design can prevent the generated debris from splashing when fixing the aluminum alloy casting shell. The protective cover set on the side can prevent the generated debris from splashing when fixing the drilling. The chip discharge hopper is set at the bottom of the protective cover. After the processing is completed, the debris can be blown away directly by the air gun, so that the debris can be discharged directly from the bottom, reducing the time spent on subsequent cleaning and maintenance.

[0017] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a positioning drilling device for machining aluminum alloy casting shells proposed in this utility model.

[0019] Figure 2 This is a side view of the overall structure of a positioning drilling device for machining aluminum alloy casting shells proposed in this utility model;

[0020] Figure 3 This is a first-view structural schematic diagram of a positioning drilling device for machining aluminum alloy casting shells proposed in this utility model.

[0021] Figure 4 This is a partial structural schematic diagram of a positioning drilling device for machining aluminum alloy casting shells proposed in this utility model.

[0022] In the diagram: 1. Protective cover; 2. Rectangular fixing plate; 3. Rectangular through slot; 4. Sliding block; 5. Two-way lead screw; 6. Servo motor; 7. Arc-shaped expansion block; 8. Guide slot; 9. Guide rod; 10. Fixed support plate; 11. Electric telescopic rod; 12. Servo cylinder; 13. Positioning clamp; 14. Positioning block; 15. Balance guide rod; 16. Hydraulic telescopic rod; 17. Annular fixed seat; 18. Drilling rig; 19. Drill rod; 20. Chip hopper; 21. Support leg. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Example 1:

[0025] A positioning drilling device for machining aluminum alloy casting shells, in this embodiment, as shown... Figure 1-4 As shown, the device includes a protective cover 1. A rectangular fixing plate 2 is fixed to one inner wall of the protective cover 1 by bolts. A rectangular through groove 3 is symmetrically distributed on one outer wall of the rectangular fixing plate 2. A sliding block 4 is slidably inserted into the inner wall of the rectangular through groove 3. A bidirectional screw rod 5 is screwed to the middle of the two sliding blocks 4. A servo motor 6 is connected to one side of the bidirectional screw rod 5 by a coupling. A hydraulic telescopic rod 16 is fixed to the top outer wall of the protective cover 1 by bolts. An annular fixing seat 17 is fixed to the piston rod at the top of the hydraulic telescopic rod 16. Drilling rigs 18 are evenly distributed on the inner wall of the annular fixing seat 17. The output shaft of the drilling rig 18 is connected to a drill rod 19.

[0026] The arc-shaped expansion block 7, whose spacing can be quickly adjusted by sliding, can be inserted into the inner wall of the aluminum alloy casting shell to achieve a quick snap-fit ​​fixation effect. This can quickly fix the shell and reduce the time spent on traditional fixation. Furthermore, a positioning clamp 13 is set at the end of the shell for auxiliary fixation, which can effectively fix the shell and prevent displacement during drilling.

[0027] The outer walls of the two sliding blocks 4 are welded with arc-shaped expansion blocks 7, and the side walls of the arc-shaped expansion blocks 7 are bonded with anti-slip pads. The bottom outer wall of the rectangular fixing plate 2 has symmetrically distributed guide grooves 8, and the inner wall of the guide grooves 8 is slidably inserted with guide rods 9.

[0028] The two guide rods 9 are welded to the outer wall of the same side with a fixed support plate 10, and the bottom of the fixed support plate 10 is fixed with an electric telescopic rod 11 by screws.

[0029] The top side outer wall of the fixed support plate 10 is fixed with a servo cylinder 12 by screws, and the piston rod of the servo cylinder 12 is connected to a positioning clamp 13.

[0030] When drilling holes to fix the outer shell of aluminum alloy castings, the protective cover 1 set on the side can prevent the generated debris from splashing. Furthermore, a chip discharge hopper 20 is set at the bottom of the protective cover 1. After the processing is completed, the debris is directly blown away by an air gun, so that the debris can be directly discharged from the bottom, reducing the time spent on subsequent cleaning and maintenance.

[0031] In this embodiment, the positioning drilling device is first assembled and connected to an external power supply. Then, the two arc-shaped expansion blocks 7 are adjusted to their minimum spacing. The inner wall of the aluminum alloy casting shell to be drilled is then inserted into the outside of the two arc-shaped expansion blocks 7. The servo motor 6 drives the bidirectional lead screw 5 to rotate, thereby moving the two arc-shaped expansion blocks 7 away from each other and pressing and fixing the inner wall of the aluminum alloy casting shell. After pressing and fixing, the electric telescopic rod 11 is used to lift the fixing plate 10. The lifting stops when the fixing plate 10 contacts the bottom outer wall of the aluminum alloy casting shell. Then, the servo cylinder 12 on the side drives the positioning clamp 13 to move and clamp and fix the side of the aluminum alloy casting shell. After fixing, the drill 18 is started to drive the drill rod 19 to rotate. Then, the hydraulic telescopic rod 16 is lowered to complete the drilling of the aluminum alloy casting shell. After drilling, the debris is blown away by an external air gun to complete the subsequent cleaning. The debris is discharged directly from the bottom chip hopper 20.

[0032] Example 2:

[0033] A positioning drilling device for machining aluminum alloy casting shells, such as Figure 1-4 As shown, this embodiment makes the following additions based on embodiment 1: both sides of the servo cylinder 12 are provided with positioning blocks 14, and the positioning blocks 14 are provided with circular through slots; the outer walls of both ends of the back of the positioning clamping block 13 are welded with balance guide rods 15, and the balance guide rods 15 and the circular through slots are connected in an interlocking manner; the bottom inner wall of the protective cover 1 is welded with a chip discharge hopper 20, and the four corners of the chip discharge hopper 20 are welded with support legs 21.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A positioning drilling device for machining the outer shell of an aluminum alloy casting, comprising a protective cover (1), characterized in that, A rectangular fixing plate (2) is fixed to one side of the inner wall of the protective cover (1) by bolts, and a rectangular through groove (3) is symmetrically distributed through one side of the outer wall of the rectangular fixing plate (2). A sliding block (4) is slidably inserted into the inner wall of the rectangular through groove (3), and a double-acting screw (5) is screwed to the middle of the two sliding blocks (4). A servo motor (6) is connected to one side of the double-acting screw (5) through a coupling. A hydraulic telescopic rod (16) is fixed to one side of the outer wall of the top of the protective cover (1) by bolts. An annular fixing seat (17) is fixed to the piston rod at the top of the hydraulic telescopic rod (16), and a drill (18) is fixed to the inner wall of the annular fixing seat (17) at equal intervals. The output shaft of the drill (18) is connected to a drill rod (19).

2. The positioning drilling device for machining aluminum alloy casting shells according to claim 1, characterized in that, The outer walls of the two sliding blocks (4) are welded with arc-shaped expansion blocks (7), and the side walls of the arc-shaped expansion blocks (7) are bonded with anti-slip pads.

3. The positioning drilling device for machining aluminum alloy casting shells according to claim 1, characterized in that, The rectangular fixing plate (2) has symmetrically distributed guide grooves (8) on its bottom outer wall, and guide rods (9) are slidably inserted into the inner wall of the guide grooves (8).

4. The positioning drilling device for machining aluminum alloy casting shells according to claim 3, characterized in that, The two guide rods (9) are welded to the outer wall of the same side with a fixed support plate (10), and the bottom of the fixed support plate (10) is fixed with an electric telescopic rod (11) by screws.

5. A positioning drilling device for machining aluminum alloy casting shells according to claim 4, characterized in that, The top side outer wall of the fixed support plate (10) is fixed with a servo cylinder (12) by screws, and the piston rod of the servo cylinder (12) is connected to a positioning clamp (13).

6. The positioning drilling device for machining aluminum alloy casting shells according to claim 5, characterized in that, The servo cylinder (12) is provided with positioning blocks (14) on both sides, and the positioning blocks (14) have circular through slots. The outer walls of the back ends of the positioning clamp (13) are welded with balance guide rods (15), and the balance guide rods (15) and the circular through slots form an insertion fit.

7. The positioning drilling device for machining aluminum alloy casting shells according to claim 1, characterized in that, The bottom inner wall of the protective cover (1) is welded with a chip discharge hopper (20), and the four corners of the chip discharge hopper (20) are all welded with support legs (21).

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