Robot drilling and dotting tool

By designing a robot hole making tool for intelligent hole making equipment, the clamping device and limit support device are used to solve the problems of large hole making errors and high loss of the hole making pen, and the utilization rate and working efficiency of the hole making pen are improved.

CN119927864APending Publication Date: 2025-05-06江西洪都航空工业股份有限公司
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Patent Information

Application Number
CN202510229868.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-28
Publication Date
2025-05-06

AI Technical Summary

Technical Problem

The intelligent hole making equipment has large drilling errors during hole making and drilling, resulting in increased loss of drilling pens, reduced usage rate and low working efficiency.

Method used

Design a robot hole making and dot tool to be installed on the hole making spindle, including a clamping device, limit support device and dot pen. The clamping device clamps the handle, and the limit support device limits the length of the dot pen through the limit cover and support spring, ensuring that the dot pen moves along its axial direction and reducing consumption of the dot pen.

Benefits of technology

Through the installation limit of the limit cover and clamping rod, the process of adjusting the knife again after the installation of the dot pen is reduced, the consumption of the dot pen is reduced, the life and utilization rate of the dot pen is improved, and the efficiency of the dot pen is enhanced.

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Abstract

The invention relates to a dotting tool, and belongs to the field of structural design. A robot drilling and dotting tool is installed on a drilling main shaft and comprises a clamping device, a limiting supporting device and a dotting pen. One end of the clamping device is installed on the cutter handle, and the dotting pen is installed at the other end of the clamping device through the limiting supporting device and moves in the axial direction under the action of the limiting supporting device. The dotting pen touches the surface of the workpiece along with forward extension of the main shaft to complete dotting. The dotting pen has the advantages that consumption of the dotting pen in the dotting process can be reduced, the service life of the dotting pen is prolonged, and the utilization rate of the dotting pen is increased; and through installation limiting of the limiting cover and the clamping rod, the procedure of tool setting again after the dotting pen is installed is reduced, and the dotting work efficiency is improved.
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Description

Technical Field

[0001] The invention relates to a dotting tool and belongs to the field of structural design. Background Art

[0002] In the modern aviation manufacturing industry, intelligent hole-making equipment has been used for product hole-making work. However, in order to ensure the accuracy of the hole-making position, a dotting pen is used instead of a drill bit to mark the hole position on the product before the formal hole-making work, so as to clearly judge the accuracy of the hole-making position. The commonly used dotting method is to clamp the dotting pen on the tool handle, and after the tool is aligned, dotting is performed by controlling the feed length of the spindle. Because the dotting pen is inelastic after being installed on the tool handle and the axis of the dotting pen is not coaxial with the axis of the tool handle, the dots are circles and the dotting is completed by squeezing the pen tip. When the pen tip is squeezed and shortened to the point where it cannot touch the product, the spindle feed amount needs to be readjusted until the dotting pen has no pen tip. This not only increases the loss of the dotting pen, but also reduces the number of jobs for the dotting pen, reduces the accuracy of dotting, and increases the difficulty of work. Summary of the invention

[0003] The purpose of the present invention is to provide a robot hole-making and dotting tool, which is used to solve the problem of large dotting errors when making holes and dots in intelligent devices, reduce damage to the dotting pen, and improve the utilization rate of consumables and the efficiency of dotting work.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a robot hole-making and dotting tool is installed on a hole-making spindle, and the dotting tool includes a clamping device, a limit support device and a dotting pen; one end of the clamping device is installed on the tool handle, and the other end is installed with the dotting pen through the limit support device, and the dotting pen moves along its axial direction under the action of the limit support device; the dotting pen touches the surface of the workpiece as the spindle extends forward to complete the dotting.

[0005] Preferably, the clamping device includes a clamping rod and a limit cover; a cavity is axially opened along the clamping rod and the limit cover, and the pen shaft of the dotting pen extends into the cavity; one end of the clamping rod is installed on the knife handle, and the other end is connected and fixed to one end of the limit cover; a through hole for accommodating the tip of the dotting pen to pass through is opened on the other end of the limit cover, and the through hole is connected to the cavity; a limit support device is arranged in the cavity to limit the length of the dotting pen extending out of the limit cover.

[0006] Preferably, the limit cover includes a shell and a mounting limit; the mounting limit is located at one end of the shell and is used to connect with the clamping rod; the inner diameter of the mounting limit is larger than the inner diameter of the cavity and is used to limit the installation length of the tool handle on the dotting tool.

[0007] Preferably, the installation limiter is connected to the clamping rod via threads.

[0008] Preferably, the limiting support device includes a limiting device and a supporting device; the limiting device is arranged inside the limiting cover and close to the through hole; the supporting device is arranged at the end of the clamping rod away from the limiting cover; the limiting device and the supporting device interact with each other to limit the length of the dotting pen extending out of the limiting cover.

[0009] Preferably, the limiting device and the supporting device are a limiting spring and a supporting spring respectively; the limiting spring is sleeved on the dotting pen, one end of which abuts against the protrusion at the end of the through hole, and the other end abuts against the radial protrusion of the dotting pen; the supporting spring is sleeved on the end of the dotting pen located inside the clamping rod.

[0010] Preferably, the cross section of the support spring is trapezoidal, the large end of the support spring abuts against the cavity of the clamping rod, and the small end is sleeved on the end of the dotting pen.

[0011] Preferably, the radial dimension between the end of the dotting pen located in the cavity and the radial protrusion thereof gradually increases.

[0012] Preferably, the maximum outer diameters of the limit spring and the support spring match the inner diameters of the limit cover and the clamping rod cavity, respectively.

[0013] Compared with the prior art, the present invention has the following advantages: 1. It can reduce the consumption of dotting pens during the dotting process, and increase the life and utilization rate of the dotting pens; 2. The installation limit of the limit cover and the clamping rod reduces the process of re-calibrating the tool after the dotting pen is installed, thereby improving the dotting work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of an embodiment of the present invention; Figure 2 is a schematic diagram of the structure of the clamping rod in an embodiment of the present invention; Figure 3 2 is a schematic diagram of the structure of the limit cover in an embodiment of the present invention; Figure 4 is a schematic diagram of the support spring structure in an embodiment of the present invention; Figure 5 2 is a schematic diagram of the limit spring structure in an embodiment of the present invention; Figure 6 2 is a schematic diagram of the structure of a dotting pen according to an embodiment of the present invention; Figure 1 , 4 , 5, 1. Clamping rod; 2. Limiting cover; 3. Support spring; 4. Limiting spring; 5. Dotting pen; Figure 2 In the figure, 1-1, clamping part; 1-2, external thread; Figure 3 2-1, limit cover housing; 2-2, internal thread; 2-3, installation limit; Figure 6 In the figure, 5-1, the pen holder of the dotting pen; 5-2, the pen tip of the dotting pen. DETAILED DESCRIPTION

[0015] The following is combined with Figure 1-6 The present invention is further described in detail: a robot hole-making and dotting tool is installed on a hole-making spindle, and the dotting tool includes a clamping device, a limit support device and a dotting pen 5; one end of the clamping device is installed with the tool handle, and the other end is installed with the dotting pen 5 through the limit support device, and the dotting pen 5 moves along its axial direction under the action of the limit support device; the dotting pen touches the surface of the workpiece as the spindle extends forward to complete the dotting.

[0016] Specifically, a robot hole-making and dotting tool, such as Figure 1 As shown, it is composed of a clamping rod 1, a limiting cover 2, a supporting spring 3, a limiting spring 4, and a dotting pen 5.

[0017] like Figure 2-3 As shown, the clamping device includes a clamping rod 1 and a limiting cover 2; a cavity is axially opened inside the clamping rod 1 and the limiting cover 2, and the pen shaft 5-1 of the dotting pen extends into the cavity; one end of the clamping rod 1 serves as a clamping part, and the other end serves as a mounting part, the cavity extends from the mounting part to the clamping part 1-1, and the opening end of the cavity is located at the end of the mounting part, the clamping part 1-1 is installed on the tool handle, and the mounting part is connected and fixed to one end of the limiting cover 2; a through hole for accommodating the dotting pen tip 5-2 to pass through is opened at the other end of the limiting cover 2, and the through hole is connected to the cavity; a limiting support device is arranged in the cavity to limit the length of the dotting pen extending out of the limiting cover.

[0018] As a preferred embodiment of the present invention, the limit cover 2 includes a limit cover shell 2-1 and an installation limit 2-3; the installation limit 2-3 is located at one end of the limit cover shell 2-1 and is used to connect with the clamping rod 1; the inner diameter of the installation limit 2-3 is larger than the inner diameter of the cavity, and is used to limit the installation length of the tool handle on the dotting tool.

[0019] As a preferred embodiment of the present invention, the mounting limiter is provided with an internal thread 2-2, the mounting portion is provided with an external thread 1-2, and the mounting limiter 2-3 is connected to the clamping rod 1 through threads.

[0020] As a preferred embodiment of the present invention, the limiting support device includes a limiting device and a supporting device; the limiting device and the supporting device are respectively a limiting spring 4 and a supporting spring 3; the limiting spring 4 is arranged in the limiting cover 2 and is close to the through hole, and is sleeved on the dotting pen 5, one end of which abuts against the protrusion at the end of the through hole, and the other end abuts against the radial protrusion of the dotting pen 5; the supporting spring 3 is arranged at the end of the clamping rod 1 away from the limiting cover 2, and is sleeved on the dotting pen 5; the limiting spring 4 and the supporting spring 3 interact with each other to limit the length of the dotting pen 5 extending out of the limiting cover 2.

[0021] As a preferred embodiment of the present invention, the support spring 3 has a trapezoidal cross-section, with its large end abutting against the end of the cavity of the clamping rod 1 and its small end being sleeved on the end of the dotting pen 5; in order to enhance the axial force of the support spring 3 on the dotting pen, the radial dimension between the end of the dotting pen located in the cavity and its radial protrusion gradually increases.

[0022] As a preferred embodiment of the present invention, the maximum outer diameters of the limit spring 4 and the support spring 3 respectively match the inner diameters of the cavity of the limit cover 2 and the clamping rod 1, that is, the maximum outer diameters of the limit spring 4 and the support spring 3 are slightly smaller than the inner diameters of the cavity of the limit cover 2 and the clamping rod 1.

[0023] Installation method: first install the support spring 3 into the clamping rod 1, install the dotting pen 5 on the support spring 3, then install the limit spring 4 on the dotting pen 5, finally combine the clamping rod 1 and the limit cover 2, and install the clamping rod 1 on the tool handle so that the tool handle touches the installation limit 2-3 to complete the installation of a robot hole making and dotting tool.

[0024] When using, first align the tool with the dotting pen for the first time, and then adjust the spindle feed length until the dots on the product meet the requirements. When replacing the dotting pen, just remove the limit cover 2 and replace the dotting pen 5, without re-aligning the tool.

[0025] The above embodiments are only preferred implementations of the present invention and do not constitute a limitation of the present invention. Any extensions and modifications made by ordinary technicians in this field without departing from the principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A robot hole-making and dotting tool, mounted on a hole-making spindle, characterized in that: The dotting tool comprises a clamping device, a limit support device and a dotting pen; one end of the clamping device is mounted on the tool handle, and the other end is mounted on the dotting pen through the limit support device, and the dotting pen moves along its axial direction under the action of the limit support device; The dotting pen moves forward along with the spindle, touches the surface of the workpiece, and completes the dotting.

2. The robot hole-making and spot-punching tool according to claim 1, characterized in that: The clamping device includes a clamping rod and a limit cover; a cavity is axially opened inside the clamping rod and the limit cover, and the pen shaft of the dotting pen extends into the cavity; one end of the clamping rod is installed on the tool handle, and the other end is connected and fixed to one end of the limit cover; a through hole is opened on the other end of the limit cover for accommodating the tip of the dotting pen to pass through, and the through hole is connected to the cavity; a limit support device is arranged in the cavity to limit the length of the dotting pen extending out of the limit cover.

3. The robot hole-making and spot-punching tool according to claim 2, characterized in that: The limit cover includes a shell and an installation limit; the installation limit is located at one end of the shell and is used to connect with the clamping rod; the inner diameter of the installation limit is larger than the inner diameter of the cavity and is used to limit the installation length of the tool handle on the dotting tool.

4. The robot hole-making and spot-punching tool according to claim 2 or 3, characterized in that: The installation limiter is connected with the clamping rod through threads.

5. The robot hole-making and spot-punching tool according to claim 2, characterized in that: The limiting support device includes a limiting device and a supporting device; the limiting device is arranged in the limiting cover and close to the through hole; the supporting device is arranged at the end of the clamping rod away from the limiting cover; the limiting device and the supporting device interact with each other to limit the length of the dotting pen extending out of the limiting cover.

6. The robot hole-making and spot-punching tool according to claim 5, characterized in that: The limiting device and the supporting device are respectively a limiting spring and a supporting spring; the limiting spring is sleeved on the dotting pen, one end of which abuts against the protrusion at the end of the through hole, and the other end abuts against the radial protrusion of the dotting pen; the supporting spring is sleeved on the end of the dotting pen located in the clamping rod.

7. The robot hole-making and spot-punching tool according to claim 6, characterized in that: The cross section of the support spring is trapezoidal, the large end of the support spring abuts against the cavity of the clamping rod, and the small end is sleeved on the end of the dotting pen.

8. The robot hole-making and spot-punching tool according to claim 6 or 7, characterized in that: The radial dimension between the end of the dotting pen located in the cavity and the radial protrusion thereof gradually increases.

9. The robot hole-making and spot-punching tool according to claim 6, characterized in that: The maximum outer diameters of the limit spring and the support spring are matched with the inner diameters of the limit cover and the clamping rod cavity respectively.