A hole making positioning device
By combining the base of the hole-making positioning device and the vacuum pumping assembly with the design of multiple guide components, high-precision hole-making in a large flat area is achieved, solving the problem of poor processing accuracy in existing technologies.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI AIRCRAFT MFG
- Filing Date
- 2025-06-09
- Publication Date
- 2026-07-03
AI Technical Summary
In existing technologies, when drilling holes in large flat surfaces or locations where it is difficult to use C-clamps, the machining accuracy is poor and the process is time-consuming and labor-intensive.
A hole-making positioning device is adopted, including a base and a vacuum assembly. The vacuum assembly evacuates the sealed cavity into a vacuum, so that the base is tightly fixed on the workpiece to be holed. The different hole diameters of multiple guides are used to adapt to hole-making cutters of different sizes, so as to achieve accurate positioning and high-precision machining.
It can achieve accurate positioning and high-precision hole making even in large flat surfaces where it is not easy to use C-clamps, thus solving the problem of poor machining accuracy.
Smart Images

Figure CN224445345U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hole-making positioning equipment technology, and in particular to a hole-making positioning device. Background Technology
[0002] Currently, the existing hole-making method usually involves clamping the workpiece with a C-clamp at the edge of the product to be drilled before drilling. Although the C-clamp can ensure the stability of hole making, its application range is limited. When drilling on large flat surfaces, in locations where it is not easy to clamp with a C-clamp, and when there are high requirements for size and position and high precision, it is difficult to achieve the required machining accuracy using a C-clamp, which is time-consuming and labor-intensive. Utility Model Content
[0003] The purpose of this utility model is to provide a hole-making positioning device to solve the problem of poor machining accuracy in the prior art when making holes in large flat surfaces that are not easy to clamp with C-clamps.
[0004] To address the aforementioned problems, this utility model provides a hole-making positioning device, comprising: a base having a communicating hole that communicates with the hole-making location of the workpiece to be holed, the base forming a sealed cavity with the workpiece; a plurality of guide members, each of which can be selectively and detachably mounted on the base, each guide member having a guide through hole communicating with the communicating hole, the guide through holes of different guide members having different diameters, and the guide through holes of different diameters allowing the insertion of hole-making tools of different sizes; and a vacuum assembly communicating with the sealed cavity, the vacuum assembly capable of evacuating the sealed cavity to fix the base on the workpiece to be holed.
[0005] As an optional technical solution for the hole positioning device, the vacuum assembly includes a vacuum pump and a gas guide pipe. One end of the gas guide pipe is connected to the vacuum pump, and the other end of the gas guide pipe is connected to the sealed cavity. The vacuum pump is capable of evacuating the sealed cavity.
[0006] As an optional technical solution for the hole positioning device, the base has a vent hole that communicates with the sealed cavity, and the vent hole is connected to the other end of the vent pipe.
[0007] As an optional technical solution for the hole-making positioning device, the power of the vacuum pump is P, where P≥600W.
[0008] As an optional technical solution for the hole-making positioning device, the air guide tube is a plastic hose or a rubber hose.
[0009] As an optional technical solution for the hole positioning device, the guide is a bolt, the base has a mounting hole communicating with the connecting hole, the bolt and the mounting hole are threaded together, the bolt has the guide through hole, and the guide through hole extends along the axial direction of the bolt.
[0010] As an optional technical solution for the hole-making positioning device, the base includes a first base body, a second base body, and a guide post. The first base body and the second base body are connected. The first base body has the mounting hole, and the second base body has an air extraction chamber. The guide post is connected to the inner wall of the air extraction chamber and is flush with the bottom end face of the second base body. The guide post has the communicating hole, and the air extraction chamber can form the sealed cavity with the workpiece to be holed.
[0011] As an optional technical solution for the hole-making positioning device, the hole-making positioning device further includes a first elastic ring and a second elastic ring. The base plate of the first elastic ring is disposed on the bottom end face of the second seat, and the second elastic ring is disposed on the bottom end face of the guide post. The first elastic ring and the second elastic ring can abut against the workpiece to be holed.
[0012] As an optional technical solution for the hole-making positioning device, both the first elastic ring and the second elastic ring are rubber rings.
[0013] As an optional technical solution for the hole-making positioning device, the base is made of transparent plexiglass.
[0014] The beneficial effects of this utility model are as follows:
[0015] This invention provides a hole-making positioning device, which includes a base, a vacuum assembly, and multiple guide members. The base has a connecting hole; the guide members have guide holes communicating with the connecting hole. Using this hole-making positioning device, the vacuum assembly is connected to a sealed cavity, and the vacuum assembly creates a vacuum in the sealed cavity, thereby tightly fixing the base to the workpiece to be holed. This fixing method allows for accurate positioning even on large flat surfaces where C-clamps are difficult to use, ensuring the machining accuracy of the hole. Simultaneously, multiple guide members are provided, and the guide holes of different guide members have different diameters, allowing for the insertion of hole-making cutters of different sizes. When the hole-making cutter enters the connecting hole along the guide hole, the hole-making operation is finally performed on the workpiece. This hole-making positioning device effectively solves the problem of poor machining accuracy in existing technologies when making holes on large flat surfaces where C-clamps are difficult to use. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the hole-making and positioning device in an embodiment of the present invention;
[0017] Figure 2 This is a cross-sectional view of a portion of the hole-making and positioning device in an embodiment of this utility model;
[0018] Figure 3 This is a cross-sectional view of the guide component in an embodiment of this utility model.
[0019] In the picture:
[0020] 1. Base; 11. Connecting hole; 12. Sealed cavity; 13. Air vent; 14. Mounting hole; 15. First base body; 16. Second base body; 17. Guide post;
[0021] 2. Guide component; 21. Guide through hole; 22. External thread;
[0022] 3. Vacuum assembly; 31. Vacuum pump; 32. Gas delivery pipe;
[0023] 4. Workpiece to be drilled;
[0024] 51. First elastic ring; 52. Second elastic ring. Detailed Implementation
[0025] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Moreover, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0028] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0029] like Figures 1 to 3 As shown, this embodiment provides a hole-making positioning device, which includes a base 1, a vacuum assembly 3, and multiple guide members 2. The base 1 has a connecting hole 11 that communicates with the hole-making area of the workpiece 4 to be holed, forming a sealed cavity 12 between the base 1 and the workpiece 4. Multiple guide members 2 can be selectively and detachably mounted on the base 1. Each guide member 2 has a guide through hole 21 communicating with the connecting hole 11. The guide through holes 21 of different guide members 2 have different diameters, allowing different sized hole-making tools to be inserted. The vacuum assembly 3 communicates with the sealed cavity 12 and can evacuate the sealed cavity 12, thereby fixing the base 1 onto the workpiece 4 to be holed.
[0030] The hole-making positioning device of this invention connects the vacuum assembly 3 to the sealed cavity 12, creating a vacuum in the sealed cavity 12. This allows the base 1 to be tightly fixed to the workpiece 4 to be holed. This fixing method ensures accurate positioning even on large flat surfaces where C-clamps are difficult to use, guaranteeing the machining accuracy of the hole. Multiple guide members 2 are provided, each with a different diameter guide hole 21, accommodating different sized hole-making cutters. When the hole-making cutter enters the connecting hole 11 through the guide hole 21, it ultimately performs the hole-making operation on the workpiece 4. This hole-making positioning device effectively solves the problem of poor machining accuracy in existing technologies when making holes on large flat surfaces where C-clamps are difficult to use.
[0031] Optionally, the guide hole 21 and the connecting hole 11 are coaxially arranged.
[0032] In some embodiments, such as Figure 1As shown, the vacuum assembly 3 includes a vacuum pump 31 and a gas guide pipe 32. One end of the gas guide pipe 32 is connected to the vacuum pump 31, and the other end of the gas guide pipe 32 is connected to the sealed cavity 12. With this configuration, the vacuum pump 31 can be used to evacuate the sealed cavity 12 into a vacuum state, thereby making the base 1 tightly fixed on the workpiece 4 to be drilled, ensuring the reliability of the positioning.
[0033] Among them, such as Figure 1 and Figure 2 As shown, in this embodiment, the base 1 has an air guide hole 13 that communicates with the sealed cavity 12. The other end of the air guide tube 32 can be inserted into the air guide hole 13, thereby realizing the communication between the air guide tube 32 and the sealed cavity 12.
[0034] Optionally, the vacuum assembly 3 also includes an opening valve disposed on the gas guide pipe 32, which can control the opening and closing of the vacuum pump 31.
[0035] Optionally, the vacuum assembly 3 also includes a sealing element disposed at the connection between the gas guide pipe 32 and the gas guide hole 13, and at the connection between the gas guide pipe 32 and the vacuum pump 31, to ensure the airtightness of the vacuum system, prevent gas leakage, and maintain the vacuum state within the system. The sealing element may include, but is not limited to, a sealing ring.
[0036] Specifically, the power of the vacuum pump 31 is P, and the power P of the vacuum pump 31 is ≥ 600W. This setting ensures that the sealed cavity 12 can be evacuated to a vacuum and maintained in a vacuum state.
[0037] In this embodiment, the air guide tube 32 includes, but is not limited to, a plastic hose or a rubber hose. Plastic hoses offer good sealing performance and are corrosion-resistant and wear-resistant. Rubber hoses offer good aging resistance and mechanical properties.
[0038] Specifically, such as Figures 1 to 3 As shown, the guide element 2 can be a guide pin, guide block, or bolt, etc. In this embodiment, the guide element 2 is a bolt. The base 1 has a mounting hole 14 that communicates with the connecting hole 11. The bolt and the mounting hole 14 are threaded together so that the bolt can be fixed on the base 1. The bolt has a guide through hole 21 that extends along the axial direction of the bolt, thereby achieving the purpose of communicating with the connecting hole 11 and also facilitating the insertion of a hole-making tool.
[0039] Optionally, such as Figure 3 As shown, the guide 2 has an external thread 22, and the mounting hole 14 has an internal thread, and the guide 2 and the mounting hole 14 are threadedly engaged.
[0040] In some embodiments, the base 1 includes a first base body 15, a second base body 16, and a guide post 17. The first base body 15 and the second base body 16 are connected. The first base body 15 has a mounting hole 14, and the second base body 16 has a vacuum chamber. The guide post 17 is connected to the inner wall of the vacuum chamber and is flush with the bottom end face of the second base body 16. This arrangement ensures that when the vacuum chamber is evacuated, it will not affect the connecting hole 11 of the guide post 17. The vacuum chamber can form a sealed cavity 12 between itself and the workpiece 4 to be drilled.
[0041] Optionally, the first seat 15 and the second seat 16 are generally conical in shape, with the opening at the larger end of the first seat 15 and the opening at the larger end of the second seat 16 facing away from each other. The cavity of the first seat 15 has a mounting block, which has a mounting hole 14 and a vent hole 13.
[0042] Specifically, to ensure the sealing effect of the sealed cavity 12, the hole-making positioning device also includes a first elastic ring 51 and a second elastic ring 52. The base plate of the first elastic ring 51 is disposed on the bottom end face of the second base 16, and the second elastic ring 52 is disposed on the bottom end face of the guide post 17. This arrangement allows the first elastic ring 51 and the second elastic ring 52 to abut against the workpiece 4 to be drilled. If the flatness of the workpiece 4 to be drilled is poor, the first elastic ring 51 and the second elastic ring 52 can enhance the sealing effect of the sealed cavity 12, improving the versatility of the hole-making positioning device.
[0043] Furthermore, the first elastic ring 51 and the second elastic ring 52 are, but are not limited to, rubber rings. This arrangement can enhance the friction between the first elastic ring 51 and the second elastic ring 52 and the workpiece 4 to be drilled, further ensuring the sealing effect of the sealed cavity 12.
[0044] Specifically, the base 1 is made of transparent organic glass, which has high transparency and excellent light transmission, high strength and impact resistance, and good processing performance, thus ensuring the overall structural strength of the base 1.
[0045] The working process of the hole-making and positioning device provided by this utility model is as follows:
[0046] 1. Based on material requirements, pre-drill initial holes according to the product size and positional relationship, obtain hole-making cutters No. 1, No. 2, and No. 3 (the hole diameter of the hole-making cutters is from smallest to largest in sequence), and then select the corresponding guide parts No. 1, No. 2, and No. 3 (the hole diameter of the guide through hole is from smallest to largest in sequence);
[0047] 2. Assemble guide component No. 1 onto the base and fix it in place.
[0048] 3. Connect one end of the air duct to the base first to ensure airtightness at the interface.
[0049] 4. Connect the other end of the air delivery pipe to the vacuum pump and ensure the airtightness of the interface.
[0050] 5. Use locating pins to align the hole position on the workpiece to be drilled with the guide through hole to ensure the position accuracy of the expanded hole.
[0051] 6. Turn on the vacuum pump and let it work. When the base is securely fastened (keep the vacuum pump running until the hole is completed).
[0052] 7. Install the No. 1 hole-making cutter on the manual air drill and rotate the air drill to make the hole-making cutter slowly move downwards along the guide hole until the first hole is completed, and then slowly remove the drill bit.
[0053] 8. After the first hole is made, replace guide part No. 2 and guide part No. 3 respectively, and repeat the previous step until it is completed.
[0054] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. A hole location device, characterized by, include: The base (1) has a connecting hole (11) that can communicate with the hole-making part of the workpiece (4) to be made, and the base (1) can form a closed cavity (12) with the workpiece (4) to be made. Multiple guide members (2) can be selectively and detachably installed on the base (1). Each guide member (2) has a guide through hole (21) communicating with the connecting hole (11). The diameter of the guide through hole (21) of different guide members (2) is different. The guide through holes (21) of different diameters can be used to insert hole-making tools of different sizes. The vacuum assembly (3) is connected to the sealed cavity (12). The vacuum assembly (3) can evacuate the sealed cavity (12) so that the base (1) is fixed on the workpiece (4) to be drilled.
2. The hole positioning device of claim 1, wherein, The vacuum assembly (3) includes a vacuum pump (31) and a gas guide pipe (32). One end of the gas guide pipe (32) is connected to the vacuum pump (31), and the other end of the gas guide pipe (32) is connected to the sealed cavity (12). The vacuum pump (31) can evacuate the sealed cavity (12).
3. The hole positioning device of claim 2, wherein, The base (1) has an air guide hole (13) communicating with the sealed cavity (12), and the other end of the air guide hole (13) is connected to the air guide tube (32).
4. The hole positioning device of claim 2, wherein, The power of the vacuum pump (31) is P, where P ≥ 600W.
5. The hole positioning device of claim 2, wherein, The air duct (32) is a plastic hose or a rubber hose.
6. The hole positioning device of claim 1, wherein, The guide (2) is a bolt, the base (1) has a mounting hole (14) communicating with the connecting hole (11), the bolt and the mounting hole (14) are threaded together, the bolt has the guide through hole (21), the guide through hole (21) extends along the axial direction of the bolt.
7. The hole positioning apparatus of claim 6, wherein, The base (1) includes a first base body (15), a second base body (16), and a guide post (17). The first base body (15) and the second base body (16) are connected. The first base body (15) has the mounting hole (14). The second base body (16) has an air extraction chamber. The guide post (17) is connected to the inner wall of the air extraction chamber and is flush with the bottom end face of the second base body (16). The guide post (17) has the communicating hole (11). The air extraction chamber can form the sealed cavity (12) with the workpiece (4) to be drilled.
8. The hole positioning device of claim 7, wherein, The hole-making positioning device further includes a first elastic ring (51) and a second elastic ring (52). The base plate of the first elastic ring (51) is disposed on the bottom end face of the second seat (16), and the second elastic ring (52) is disposed on the bottom end face of the guide post (17). The first elastic ring (51) and the second elastic ring (52) can abut against the workpiece (4) to be holed.
9. The hole positioning device of claim 8, wherein, Both the first elastic ring (51) and the second elastic ring (52) are rubber rings.
10. The hole positioning device of any of claims 1-9, wherein, The base (1) is made of transparent organic glass.