Drilling device for metal product machining

By designing a drilling device with linkage rods and clamping components, the problems of insufficient clamping stability and fit in the existing technology are solved, and stable clamping and high-quality drilling of metal pipes are achieved.

CN224088012UActive Publication Date: 2026-04-07SUZHOU YIJIAHONG AUTOMATION TECHNOLOGY CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-27
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Existing automatic drilling devices have poor clamping stability and fit when machining tubular metal parts, resulting in poor hole quality and even damage to the drill rod.

Method used

A drilling device comprising an outer tube, an inner tube, a linkage rod, and a clamping component was designed. The linkage rod drives the clamping component to hold the metal tube. The W-shaped design and spring steel material of the clamping component enhance the fit to tubes of different diameters. The friction between the linkage rod and the slide groove counteracts vibration, ensuring processing stability and drilling quality.

Benefits of technology

It improves the clamping stability and fit of tubular metal parts, reduces the impact of drilling vibration on the device, and ensures drilling quality and structural life.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224088012U_ABST
    Figure CN224088012U_ABST
Patent Text Reader

Abstract

The utility model discloses a drilling device for metal product processing, relates to the technical field of drilling devices, and aims to solve the technical problems that when a current tubular metal piece is drilled, the clamping stability and the fitting degree are poor, and the drilling quality is prone to be influenced. The drilling device comprises an outer pipe, an inner pipe and a linkage rod, side grooves are formed in the middles of the two sides of the inner pipe, and the linkage rod is connected with the outer pipe; a side groove is formed in the inner pipe, a side box is installed in the side groove, an adjusting cylinder is slidably installed at the position of a middle opening of the side box, a drilling assembly is arranged at the inner end of the adjusting cylinder, clamping pieces are distributed in the side groove of the inner pipe in an array mode, a two-way supporting rod is arranged on the outer side of the side box, and the two outer pipes are connected to the two ends of the inner pipe in a sleeving mode correspondingly. The number of the linkage rods is four, and the four linkage rods are distributed between the two outer pipes in an annular array mode. The multi-angle clamping device has the advantages that multi-angle clamping can be carried out on a trepanning area, balance of a machined part during trepanning is maintained, the fitting degree is kept in cooperation with a deformable clamping mechanism, and autorotation of a pipe body is limited.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of drilling device technology, and more specifically, to a drilling device for processing metal products. Background Technology

[0002] Metal products are manufactured using metal materials as the main raw material through various processing techniques. They are widely used in many fields such as daily life and industrial production. In piping systems, holes need to be drilled in tubular metal parts to install valves, tees, elbows, or other pipe fittings, so as to connect different pipes and ensure that fluids (such as liquids and gases) can be transported smoothly according to design requirements.

[0003] Existing automatic drilling devices feed tubular metal parts manually and position them during drilling by hand. This method of fixing has poor stability, easily leading to drilling deviations and potentially damaging the drill rod. Electric clamping structures, on the other hand, have poor contact surfaces and fit with tubular parts of different diameters, making it difficult to effectively limit the rotation of the tube. Therefore, we propose a drilling device for metal product processing. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a drilling device for metal product processing, so as to solve the technical problem that the clamping stability and fit of tubular metal parts are poor when drilling holes, which easily affects the drilling quality.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a drilling device for processing metal products, comprising an outer tube, an inner tube, and a linkage rod. Side grooves are provided at the middle of both sides of the inner tube, and side boxes are installed within the side grooves. An adjusting cylinder is slidably installed at the middle opening of the side box, and a drilling assembly is provided at the inner end of the adjusting cylinder. Clamping components are arranged in an array within the side grooves of the inner tube. A bidirectional support rod is provided on the outer side of the side box. Two outer tubes are provided, and each outer tube is respectively sleeved on both ends of the inner tube. The outer tubes are connected and fixed to the inner tube through a connecting plate. Four linkage rods are provided, and the four linkage rods are arranged in a circular array between the two outer tubes.

[0006] In use, the metal pipe to be processed is inserted into the inner tube. Then, the double-sided support rod is activated, causing the upper and lower linkage rods to move closer together, allowing the linkage rods to slide within the annular groove. Simultaneously, the linkage rods lower the clamping component, which clamps the metal pipe. The clamping component consists of four clamping sections, providing multi-angle clamping and fixation of the metal pipe's opening area, maintaining stability during processing. The adjusting cylinder and drilling assembly are then activated to open a hole on the side of the metal pipe. Strong vibrations are generated during opening; these vibrations are counteracted by the friction between the linkage rod and the groove, reducing the vibration on the double-sided support rod. To mitigate the impact of vibration and ensure structural lifespan, the clamping component features a W-shaped design made of spring steel. When the linkage rod shifts, it is affected by the annular groove, causing the linkage rod to pull the clamping component outward. When both ends of the clamping component are pulled outward, the angle of its bent end expands, simultaneously causing the arc-shaped opening of the arc-pressed surface to fit more closely to the outer wall of the metal pipe. Through the structural design of the clamping component, it can effectively clamp and fix metal pipes of different diameters, fitting the outer wall of the pipe. The high degree of fit increases the friction, effectively preventing the pipe from being damaged by drilling vibration and ensuring the quality of drilling.

[0007] Preferably, the side box has fitting openings at both the top and bottom of both sides, and the clamping member passes through the inside of the fitting opening. The clamping member has an arc-shaped surface in the middle and bent ends at both ends.

[0008] Preferably, the inner end of the outer tube is provided with a sliding groove, and the sliding groove is designed in an annular shape, and the outer end of the linkage rod is slidably installed in the corresponding sliding groove.

[0009] Preferably, the clamping member is made of spring steel, the outer end of the bent end of the clamping member is connected to the sliding end of the linkage rod, and the arc-shaped surface of the clamping member is in contact with the inner wall of the inner tube.

[0010] Preferably, both ends of the bidirectional support rod are provided with connecting rings, and the connecting rings are sleeved and fixed on the corresponding linkage rods. The connecting rings are located inside the connection between the clamping member and the linkage rod.

[0011] Preferably, mounting brackets are provided on both sides of the outer end of the side box, and the mounting brackets are snapped into the middle of the bidirectional support rod, and the outer arc surface of the side box is adapted to the outer inclined surface of the inner tube.

[0012] Preferably, the outer end of the outer tube is aligned with the end face of the inner tube, and the distance between the two outer tubes is adapted to the opening width of the side groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model designs a linkage rod to insert the metal pipe to be processed into the inner tube. Then, the double-sided support rod is activated, which drives the upper and lower linkage rods to move closer together, allowing the linkage rods to slide within the annular groove. At the same time, the linkage rod drives the clamping component to descend, clamping the metal pipe. The clamping component consists of four clamping sections, providing multi-angle clamping and fixing of the metal pipe's opening area, maintaining stability during processing. The adjusting cylinder and drilling assembly are activated to open the side of the metal pipe. Strong vibrations are generated during opening, which are offset by the friction between the linkage rod and the groove, reducing the impact of vibration on the double-sided support rod and ensuring the service life of the structure.

[0015] 2. This utility model also incorporates a W-shaped clamping component made of spring steel. When the linkage rod is displaced, it is affected by the annular groove, causing the linkage rod to pull the clamping component outward. When both ends of the clamping component are pulled outward, the angle of its bent end expands, simultaneously causing the arc of the arc-pressed surface to fit more closely to the outer wall of the metal pipe. Through the structural design of the clamping component, it can effectively fit the outer wall of the pipe when clamping and fixing metal pipes of different diameters. The high degree of fit increases the friction, which can effectively avoid the pipe itself being damaged by drilling vibration, thus ensuring the quality of drilling. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the inner tube structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the connection structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the clamping component structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the outer tube structure of this utility model;

[0021] Figure 6 This is a schematic diagram of the side box structure of this utility model.

[0022] The following are the labels in the diagram: 1. Outer tube; 101. Connecting plate; 102. Slide groove; 2. Inner tube; 201. Side groove; 3. Linkage rod; 4. Side box; 401. Adjusting cylinder; 402. Mounting bracket; 403. Drilling assembly; 404. Adapter port; 5. Two-way support rod; 501. Connecting ring; 6. Clamping component; 601. Bending end; 602. Arc-pressed surface. Detailed Implementation

[0023] like Figures 1 to 5As shown, this utility model relates to a drilling device for processing metal products, including an outer tube 1, an inner tube 2, and a linkage rod 3. Side grooves 201 are formed at the middle of both sides of the inner tube 2, and a side box 4 is installed within the side grooves 201. An adjusting cylinder 401 is slidably installed at the middle opening of the side box 4, and a drilling assembly 403 is provided at the inner end of the adjusting cylinder 401. Clamping members 6 are arranged in an array within the side grooves 201 of the inner tube 2. A two-way support rod 5 is provided on the outer side of the side box 4. Fitting openings 404 are formed at the upper and lower ends of both sides of the side box 4, and the clamping members 6 pass through the inner side of the fitting openings 404. An arc-shaped pressure surface 602 is provided in the middle of the clamping member 6, and bent ends 601 are provided at both ends of the clamping member 6. The clamping member 6 is made of spring steel, and the outer end of the bent end 601 of the clamping member 6 is connected to the linkage rod. The sliding end of the clamping member 6 is connected to the inner wall of the inner tube 2. The metal pipe to be processed is inserted into the inner tube 2. Then, the double-acting support rod 5 is activated to drive the upper and lower linkage rods 3 to move closer to each other, so that the linkage rod 3 slides in the annular groove 102. At the same time, the linkage rod 3 drives the clamping member 6 to descend, so that the clamping member 6 clamps the metal pipe. The clamping member 6 consists of four clamping sections, which clamp and fix the opening area of ​​the metal pipe at multiple angles to maintain stability during processing. The adjusting cylinder 401 and the drilling assembly 403 are activated to open the side of the metal pipe. Strong vibration will be generated during the opening. The vibration is offset by the friction between the linkage rod 3 and the groove 102, reducing the impact of vibration on the double-acting support rod 5 and ensuring the service life of the structure.

[0024] like Figures 2 to 6As shown, this utility model relates to a drilling device for metal product processing, comprising: two outer tubes 1, each sleeved at both ends of an inner tube 2; the outer tubes 1 are connected and fixed to the inner tube 2 via connecting plates 101; four linkage rods 3 are arranged in a circular array between the two outer tubes 1; a groove 102 is provided at the inner end of the outer tube 1, and the groove 102 is circularly designed; the outer ends of the linkage rods 3 are slidably installed in the corresponding grooves 102; both ends of the bidirectional support rods 5 are provided with connecting rings 501, and the connecting rings 501 are sleeved and fixed on the corresponding linkage rods 3; the connecting rings 501 are located on the inner side of the connection between the clamping member 6 and the linkage rods 3; and mounting brackets 402 are provided on both sides of the outer end of the side box 4, and the mounting brackets 402 are used to secure the bidirectional support rods. At the middle of 5, the outer arc surface of the side box 4 is adapted to the outer inclined surface of the inner tube 2, the outer end of the outer tube 1 is aligned with the end face of the inner tube 2, and the distance between the two outer tubes 1 is adapted to the opening width of the side groove 201. The clamping part 6 is designed in a W shape and is made of spring steel. When the linkage rod 3 is displaced, it is affected by the annular sliding groove 102, which causes the linkage rod 3 to drive the clamping part 6 to unfold outward. When the two ends of the clamping part 6 are pulled outward, the angle of its bent end 601 unfolds, and at the same time, the arc opening of the arc pressure surface 602 is more closely attached to the outer wall of the metal pipe. Through the structural design of the clamping part 6, it can effectively fit the outer wall of the pipe when clamping and fixing metal pipes of different diameters. The high degree of fit increases the friction, which can effectively avoid the pipe itself caused by the opening vibration and ensure the drilling quality.

[0025] Working Principle: This embodiment provides a drilling device for metal product processing. In use, the metal pipe to be processed is inserted into the inner tube 2. Then, the bidirectional support rod 5 is activated, causing the upper and lower linkage rods 3 to move closer together, allowing the linkage rods 3 to slide within the annular groove 102. Simultaneously, the linkage rods 3 cause the clamping member 6 to descend, clamping the metal pipe. The clamping member 6 has four clamping sections, providing multi-angle clamping and fixing of the metal pipe's opening area, maintaining stability during processing. The adjusting cylinder 401 and the drilling assembly 40 are then activated. 3. Holes are drilled on the sides of the metal pipe fittings. Strong vibrations are generated during the drilling process. The vibrations are offset by the friction between the linkage rod 3 and the slide groove 102, reducing the impact of vibration on the bidirectional support rod 5. The clamping part 6 has a W-shaped design and is made of spring steel. When the linkage rod 3 is displaced, it is affected by the annular slide groove 102, causing the linkage rod 3 to pull the clamping part 6 outward. When the two ends of the clamping part 6 are pulled outward, its bent end 601 unfolds at an angle, and at the same time, the arc of the arc-shaped surface 602 fits more closely to the outer wall of the metal pipe fitting.

[0026] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A drilling device for processing metal products, comprising an outer tube (1), an inner tube (2), and a linkage rod (3), characterized in that: The inner tube (2) has side grooves (201) in the middle of both sides, and a side box (4) is installed in the side groove (201). An adjusting cylinder (401) is slidably installed in the middle opening of the side box (4), and a drilling assembly (403) is provided at the inner end of the adjusting cylinder (401). Clamping parts (6) are arranged in an array in the side groove (201) of the inner tube (2). A two-way support rod (5) is provided on the outside of the side box (4). There are two outer tubes (1), and the two outer tubes (1) are respectively sleeved on both ends of the inner tube (2). The outer tubes (1) are connected and fixed to the inner tube (2) through a connecting plate (101). There are four linkage rods (3), and the four linkage rods (3) are arranged in a ring array between the two outer tubes (1).

2. The drilling device for processing metal products according to claim 1, characterized in that: The side box (4) has an adapter opening (404) at both the top and bottom of both sides, and the clamping member (6) passes through the inside of the adapter opening (404). The clamping member (6) has an arc-shaped surface (602) in the middle, and both ends of the clamping member (6) have bent ends (601).

3. A drilling device for processing metal products according to claim 2, characterized in that: The inner end of the outer tube (1) is provided with a sliding groove (102), and the sliding groove (102) is designed in an annular shape. The outer end of the linkage rod (3) is slidably installed in the corresponding sliding groove (102).

4. A drilling device for processing metal products according to claim 3, characterized in that: The clamping member (6) is made of spring steel. The outer end of the bent end (601) of the clamping member (6) is connected to the sliding end of the linkage rod (3). The arc-pressed surface (602) of the clamping member (6) is in contact with the inner wall of the inner tube (2).

5. A drilling device for processing metal products according to claim 4, characterized in that: Both ends of the bidirectional support rod (5) are provided with connecting rings (501), and the connecting rings (501) are sleeved and fixed on the corresponding linkage rod (3). The connecting rings (501) are located on the inner side of the connection between the clamping member (6) and the linkage rod (3).

6. A drilling device for processing metal products according to claim 5, characterized in that: The side box (4) is provided with mounting brackets (402) on both sides of its outer end, and the mounting brackets (402) are snapped into the middle of the bidirectional support rod (5). The outer arc surface of the side box (4) is adapted to the outer inclined surface of the inner tube (2).

7. A drilling device for processing metal products according to claim 6, characterized in that: The outer end of the outer tube (1) is aligned with the end face of the inner tube (2), and the distance between the two outer tubes (1) is adapted to the opening width of the side groove (201).