Titanium alloy pipe drilling positioning tool for experiment

By using double-sloping-plane contact positioning and feeding adjustment, the problem of local stress concentration during the drilling process of titanium alloy tubes was solved, achieving stable positioning of the workpiece and precise drilling.

CN224543858UActive Publication Date: 2026-07-24BAOJI BUM IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BAOJI BUM IND CO LTD
Filing Date
2025-08-27
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing drilling and positioning fixtures for titanium alloy pipes use single-line contact clamping, which makes the workpiece prone to local stress concentration during drilling, increasing the risk of deformation.

Method used

The double-sloping-plane contact positioning method is adopted. The first motor drives the connecting shaft to rotate the inclined plate. Combined with the lead screw and the limiting vertical plate, the double-sloping-plane contact positioning of the workpiece is achieved, which disperses the stress. The second motor drives the feeding lead screw to adjust the position of the workpiece and ensure the drilling accuracy.

Benefits of technology

It effectively reduces the risk of workpiece deformation, resolves positioning deviations for different pipe diameters, and ensures the stability and accuracy of the drilling process.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224543858U_ABST
    Figure CN224543858U_ABST
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Abstract

The utility model discloses a titanium alloy pipe material drilling positioning tool for experiment, including the fixed seat of fixed on the drilling machine workstation, the inner wall sliding of fixed seat is equipped with the placing seat, both sides of placing seat top all are fixed with the base plate that establishes, positioning part, positioning part includes first screw rod and two connecting shafts. The utility model discloses be equipped with two inclined plate and spacing vertical board, and first motor work drives connecting shaft rotation, and then through two transmission gears make two inclined plate opposite or opposite rotation to suitable position after, place workpiece between two inclined plate, and make workpiece datum spacing, then rotate the twist, and the twist rotation is through first screw rod and drives spacing vertical board to move to left, until one side of spacing vertical board and the other end of workpiece contact, through this double inclined plane contact positioning mode, can disperse workpiece local contact stress in subsequent drilling process, thereby reduce workpiece deformation risk.
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Description

Technical Field

[0001] This utility model relates to the field of positioning tooling technology, specifically a positioning tooling for drilling titanium alloy pipes for experimental purposes. Background Technology

[0002] Positioning fixtures, as key auxiliary equipment in the field of machining, have the core function of ensuring geometric accuracy and process reliability in the machining process by accurately positioning and stably clamping the workpiece.

[0003] In the drilling experiment of titanium alloy tubes, in order to ensure the stability of the drilling experiment, the workpiece is usually clamped and fixed on the worktable by a positioning fixture. However, the existing positioning fixture adopts a single-line contact clamping structure. In the subsequent drilling process, the single-line contact mode between the workpiece and the fixture base is prone to local stress concentration, thereby increasing the risk of workpiece deformation. Utility Model Content

[0004] The purpose of this invention is to provide a drilling and positioning fixture for titanium alloy pipes used in experiments, thereby solving the problems mentioned in the background section. To solve the above-mentioned technical problems, this invention is achieved through the following technical solution: This utility model relates to a drilling and positioning fixture for titanium alloy pipes used in experiments, comprising: A fixed base is fixed on the worktable of a drilling machine. A placement seat is slidably provided on the inner wall of the fixed base. A base plate is fixed on both sides of the top of the placement seat. The positioning component includes a first lead screw and two connecting shafts. One end of each connecting shaft is rotatably mounted on one side of one of the base plates. An inclined plate is fixedly mounted on one side of the outer wall of each of the two connecting shafts. A transmission gear is fixedly mounted on the other side of the outer wall of each of the two connecting shafts, and the transmission gears mesh with each other. A first motor is fixedly mounted on the other end of one of the connecting shafts. The outer wall of the first lead screw penetrates through the other side of the base plate. A knob is fixedly mounted on one end of the first lead screw, and a limiting vertical plate is rotatably mounted on the other end of the first lead screw.

[0005] Furthermore, a mounting plate is fixedly provided on one side of another of the substrates, and one side of the mounting plate is fixedly connected to one end of the first motor.

[0006] Furthermore, the outer walls of the two connecting shafts respectively penetrate both ends of one side of another substrate.

[0007] Furthermore, the positioning component also includes a slider, the top end of which is fixedly disposed at the bottom end of the limiting vertical plate, and the outer wall of the slider is slidably connected to the top end of the placement seat.

[0008] Furthermore, it also includes a feeding component, which includes a second motor, and a second lead screw is fixedly provided at the output end of the second motor. The outer wall of the second lead screw penetrates one side of the placement seat.

[0009] Furthermore, the width of the bottom end of the outer wall of the placement seat is adapted to the width of the inner wall of the fixing seat.

[0010] Furthermore, the outer wall of the second lead screw penetrates one side of the fixed seat, and one end of the second lead screw is rotatably connected to the inner wall of the fixed seat.

[0011] This utility model has the following beneficial effects: This invention utilizes two inclined plates and a limiting vertical plate. A first motor drives a connecting shaft to rotate, which in turn causes the two inclined plates to rotate to a suitable position via two transmission gears. The workpiece is then placed between the two inclined plates, and its reference position is fixed. A rotary knob is then rotated, which in turn drives the limiting vertical plate to move to the left via a first lead screw until one side of the limiting vertical plate contacts the other end of the workpiece. This double-inclined-plane contact positioning method can disperse the local contact stress of the workpiece during subsequent drilling, thereby reducing the risk of workpiece deformation. At the same time, this method can also adjust the angle between the two inclined plates to solve the contact positioning deviation of different pipe diameters. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the top connection structure of the placement base of this utility model; Figure 3 This is a schematic diagram of the interconnected structure of the two inclined plates of this utility model; Figure 4 This is a schematic diagram of the first lead screw connection structure of this utility model.

[0014] The attached diagram lists the components represented by each number as follows: 11. Fixed seat; 12. Placement seat; 13. Base plate; 14. Mounting plate; 21. Connecting shaft; 22. Inclined plate; 23. Transmission gear; 24. First motor; 25. First lead screw; 26. Rotary knob; 27. Limiting vertical plate; 28. Slider; 31. Second motor; 32. Second lead screw. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0017] Please see Figure 1-4 As shown, this utility model is a drilling and positioning fixture for titanium alloy pipes used in experiments, comprising: A fixed base 11 is fixed on the worktable of the drilling machine. A placement seat 12 is slidably provided on the inner wall of the fixed base 11. A base plate 13 is fixed on both sides of the top of the placement seat 12. The mounting base 11 is located directly below the drill bit on the drilling machine.

[0018] The positioning component includes a first lead screw 25 and two connecting shafts 21. One end of each connecting shaft 21 is rotatably mounted on one side of one of the base plates 13. An inclined plate 22 is fixedly mounted on one side of the outer wall of each of the two connecting shafts 21. A transmission gear 23 is fixedly mounted on the other side of the outer wall of each of the two connecting shafts 21, and the transmission gears 23 mesh with each other. A first motor 24 is fixedly mounted on the other end of one of the connecting shafts 21. The outer wall of the first lead screw 25 penetrates through the other side of the base plate 13. A knob 26 is fixedly mounted on one end of the first lead screw 25, and a limiting vertical plate 27 is rotatably mounted on the other end of the first lead screw 25. The two inclined plates 22 are V-shaped in shape. The first motor 24 is a servo motor, which is used to provide the driving force required for the rotation of the two inclined plates 22. The first lead screw 25 is threadedly engaged with the base plate 13. The outer wall of the knob 26 is provided with protective threads to increase the friction between the hand and the knob 26, thereby facilitating the rotation of the knob 26. When the two inclined plates 22 are rotated to the vertical state, the limiting vertical plate 27 does not contact the inclined plates 22.

[0019] A mounting plate 14 is fixedly provided on one side of another base plate 13, and one side of the mounting plate 14 is fixedly connected to one end of the first motor 24. The outer wall of the connecting shaft 21 connected to the first motor 24 penetrates one side of the mounting plate 14 and rotates with the mounting plate 14.

[0020] The outer walls of the two connecting shafts 21 respectively penetrate both ends of one side of another substrate 13; The connecting shaft 21 is rotatably engaged with another substrate 13. The connecting shaft 21 can be rotated via the substrate 13, thereby improving the stability of the rotation of the connecting shaft 21.

[0021] The positioning component also includes a slider 28, the top of which is fixedly disposed at the bottom of the limiting vertical plate 27, and the outer wall of the slider 28 is slidably connected to the top of the placement seat 12. The slider 28 is T-shaped and is used to limit the movement of the limiting vertical plate 27, so that it moves horizontally along the direction of the first lead screw 25. The top of the placement seat 12 is provided with a groove that matches the slider 28.

[0022] Working principle: First, based on the diameter of the titanium alloy tube workpiece, the first motor 24 is turned on. The first motor 24 drives one of the transmission gears 23 to rotate via the connecting shaft 21. The rotation of the transmission gear 23 drives the other connecting shaft 21 to rotate in the opposite direction, thereby driving the two inclined plates 22 to rotate in opposite directions. After the inclined plates 22 rotate to a suitable angle, the workpiece is placed between the two inclined plates 22, and one end of the workpiece is in contact with the base plate 13 near the first motor 24. Then, the knob 26 is rotated. The rotation of the knob 26 drives the limiting vertical plate 27 to move to the left via the first lead screw 25 until one side of the limiting vertical plate 27 contacts the other end of the workpiece. This double inclined surface contact positioning method can disperse the local contact stress of the workpiece during subsequent drilling, thereby reducing the risk of workpiece deformation. At the same time, this method can also adjust the angle between the two inclined plates 22 to solve the contact positioning deviation of different pipe diameters.

[0023] Please see Figure 1-4 As shown, this embodiment, based on the above embodiment, further includes: The feeding component includes a second motor 31, and a second lead screw 32 is fixedly provided at the output end of the second motor 31. The outer wall of the second lead screw 32 penetrates one side of the placement seat 12. The second motor 31 is compatible with the first motor 24 and is used to provide the driving force required for the left and right movement of the placement seat 12 for feeding. One end of the second motor 31 is fixedly installed on one side of the fixed seat 11. The second lead screw 32 is threadedly engaged with the placement seat 12. A control panel is installed on one side of the drilling machine workbench. The first motor 24 and the second motor 31 are electrically connected to the external power supply through the control panel.

[0024] The width of the bottom of the outer wall of the placement seat 12 is adapted to the width of the inner wall of the fixing seat 11; The placement seat 12 can be moved and limited by the fixed seat 11, so that it can move horizontally along the direction of the second lead screw 32.

[0025] The outer wall of the second lead screw 32 penetrates one side of the fixed seat 11, and one end of the second lead screw 32 is rotatably connected to the inner wall of the fixed seat 11. The second lead screw 32 is rotatably engaged with the fixed seat 11.

[0026] Working principle: After the workpiece is positioned between the two inclined plates 22, the second motor 31 is turned on. The second motor 31 drives the second lead screw 32 to rotate. The rotation of the second lead screw 32 drives the placement seat 12 to move to the right. This facilitates feeding and drilling of the workpiece, ensuring that the position of the hole on the workpiece surface is parallel to the preset direction, and avoiding hole offset or misalignment.

[0027] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A drilling and positioning fixture for titanium alloy pipes used in experiments, characterized in that, include: A fixed base (11) is fixed on the worktable of the drilling machine. A placement seat (12) is slidably provided on the inner wall of the fixed base (11). A base plate (13) is fixed on both sides of the top of the placement seat (12). The positioning component includes a first lead screw (25) and two connecting shafts (21). One end of each of the two connecting shafts (21) is rotatably disposed on one side of one of the base plates (13). An inclined plate (22) is fixedly disposed on one side of the outer wall of each of the two connecting shafts (21). A transmission gear (23) is fixedly disposed on the other side of the outer wall of each of the two connecting shafts (21), and the transmission gears (23) mesh with each other. A first motor (24) is fixedly disposed on the other end of one of the connecting shafts (21). The outer wall of the first lead screw (25) penetrates through the other side of the base plate (13). A knob (26) is fixedly disposed on one end of the first lead screw (25), and a limiting vertical plate (27) is rotatably disposed on the other end of the first lead screw (25).

2. The drilling and positioning fixture for titanium alloy pipes used in experiments according to claim 1, characterized in that: A mounting plate (14) is fixedly provided on one side of another substrate (13), and one side of the mounting plate (14) is fixedly connected to one end of the first motor (24).

3. The drilling and positioning fixture for titanium alloy pipes used in experiments according to claim 1, characterized in that: The outer walls of the two connecting shafts (21) respectively penetrate both ends of one side of another substrate (13).

4. The drilling and positioning fixture for titanium alloy pipes used in experiments according to claim 1, characterized in that: The positioning component also includes a slider (28), the top of which is fixedly disposed at the bottom of the limiting vertical plate (27), and the outer wall of the slider (28) is slidably connected to the top of the placement seat (12).

5. The drilling and positioning fixture for titanium alloy pipes used in experiments according to claim 1, characterized in that: It also includes a feeding component, which includes a second motor (31), and a second lead screw (32) is fixedly provided at the output end of the second motor (31). The outer wall of the second lead screw (32) penetrates one side of the placement seat (12).

6. The drilling and positioning fixture for titanium alloy pipes used in experiments according to claim 1, characterized in that: The width of the bottom of the outer wall of the placement seat (12) is adapted to the width of the inner wall of the fixing seat (11).

7. A drilling and positioning fixture for titanium alloy pipes used in experiments according to claim 5, characterized in that: The outer wall of the second lead screw (32) penetrates one side of the fixed seat (11), and one end of the second lead screw (32) is rotatably connected to the inner wall of the fixed seat (11).