Drill rod coaxiality detection device for deep hole machining

Abstract

The utility model discloses a drill rod coaxiality detection device for deep hole processing, which comprises a detection table, a fixed disc is arranged above the detection table, one end face of the fixed disc is provided with a clamping mechanism used for fixing a drill rod, the other end of the fixed disc is connected with a moving mechanism, and the moving mechanism is connected with the detection table. The moving mechanism can move in the axis direction of the drill rod and control the drill rod to rotate, and a detection unit is arranged on one side of the clamping mechanism. The detection unit comprises a round pipe, a supporting block, a detection column, a pressure spring and a supporting leg, the round pipe is fixedly connected with the detection table through the supporting leg arranged on the outer side face of the round pipe, the drill rod coaxiality detection device for deep hole machining can efficiently and accurately detect the coaxiality of a drill rod, the detection can be completed through one-man operation, and the detection efficiency is improved. And the detection efficiency and the detection accuracy are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of drill pipe testing technology, specifically a device for testing the coaxiality of drill pipes used in deep hole machining. Background Technology

[0002] In the field of deep hole machining, the coaxiality of the drill rod has a crucial impact on machining accuracy and quality. If the coaxiality of the drill rod does not meet the standard, problems such as drill bit misalignment and increased vibration are likely to occur during deep hole machining, which will not only reduce machining efficiency but may also lead to workpiece scrap and increase production costs.

[0003] Existing drill pipe coaxiality testing devices are complex in structure, cannot be operated by a single person, and have low testing efficiency. They require data measurement at various positions on the drill pipe, which is very troublesome. In addition, there are measurement errors, making it impossible to intuitively determine whether the drill pipe coaxiality is qualified. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a coaxiality detection device for drill rods used in deep hole machining. This device can efficiently and accurately detect the coaxiality of drill rods, and can be operated by a single person, thus improving the detection efficiency and effectively solving the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a coaxiality detection device for drill rods used in deep hole machining, comprising a detection platform, a fixed plate arranged above the detection platform, a clamping mechanism for fixing the drill rod arranged on one end face of the fixed plate, a moving mechanism connected to the other end of the fixed plate, the moving mechanism being able to move along the axial direction of the drill rod and control its rotation, and a detection unit arranged on one side of the clamping mechanism;

[0006] The detection unit includes a circular tube, a support block, a detection column, a pressure spring, and support legs. The circular tube is fixedly connected to the detection platform via support legs on its outer side. The central axis of the circular tube coincides with the central axis of the drill rod. A support block is fixed to the inner side of the circular tube. The surface of the support block is connected to the detection column via a pressure spring. A pressure sensor is installed at the connection point between the pressure spring and the support block. The moving mechanism controls the drill rod to rotate while passing through the circular tube, and detects the coaxiality of the drill rod based on the pressure change when the detection column contacts the outer side of the drill rod.

[0007] As a preferred technical solution of this utility model, the moving mechanism includes a sleeve, a stud, and a support plate. The support plate is vertically fixed to the upper surface of the testing table, the sleeve is horizontally fixed to the support plate, the sleeve has an internal thread, the stud is threaded inside the sleeve, and one end of the stud is connected to a fixed plate.

[0008] In a preferred embodiment of this invention, the other end of the stud is fixedly connected to the connecting disc, and a crank handle is fixed to one end of the connecting disc.

[0009] As a preferred embodiment of this utility model, the sleeve and the support plate are welded together by reinforcing ribs.

[0010] As a preferred embodiment of this utility model, the clamping mechanism is a three-jaw chuck.

[0011] As a preferred embodiment of this utility model, the number of support blocks is three, and the three support blocks are evenly distributed along the central axis of the circular tube.

[0012] As a preferred embodiment of this invention, the contact surface between the detection column and the outer side of the drill rod is a smooth arc-shaped surface.

[0013] As a preferred embodiment of this utility model, a guide tube is vertically fixed to the surface of the support block, and the detection column is located inside the guide tube and moves along the axial direction of the guide tube.

[0014] As a preferred technical solution of this utility model, it also includes a display unit, which includes a mounting platform and a display. The mounting platform is fixed on the upper surface of the detection platform, and the display is mounted on the upper surface of the mounting platform. The output end of the pressure sensor is electrically connected to the input end of the display, and the display shows the pressure fluctuation curve transmitted from the detection column to the pressure spring.

[0015] In a preferred embodiment of this invention, the display interface of the monitor faces upwards.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: This coaxiality detection device for deep hole machining is reasonably designed and ingeniously conceived. By using a moving mechanism to drive the drill rod to rotate and pass through the detection unit, the coaxiality of the drill rod at different positions can be detected, greatly improving the detection efficiency. In the detection unit, the detection column contacts the surface of the drill rod, and the pressure change on the detection column is transmitted to the pressure sensor through a pressure spring. By changing the pressure signal of the pressure sensor, the coaxiality of the drill rod can be intuitively determined. It can be operated by a single person, reducing the difficulty of operation and improving the accuracy and reliability of detection. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is the front view of the present utility model;

[0019] Figure 3 for Figure 2 The left view;

[0020] Figure 4 for Figure 2 Top view;

[0021] Figure 5 This is a schematic diagram of the detection unit.

[0022] Figure 6 This is a main cross-sectional view of the detection unit.

[0023] In the diagram: 1. Detection platform, 2. Fixed plate, 3. Clamping mechanism, 4. Drill rod, 5. Moving mechanism, 51. Casing, 52. Stud, 53. Connecting plate, 54. Handle, 55. Support plate, 56. Reinforcing rib plate, 6. Detection unit, 61. Round tube, 62. Support block, 63. Guide tube, 64. Detection column, 65. Pressure spring, 66. Support leg, 7. Display unit, 71. Mounting platform, 72. Monitor. Detailed Implementation

[0024] 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 (for ease of description and understanding, hereinafter referred to as...). Figure 2 (The above is described above). 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.

[0025] Please see Figure 1-4 This utility model provides a technical solution: a coaxiality detection device for drill rods used in deep hole machining, comprising a detection table 1, a clamping mechanism 3, a moving mechanism 5, a detection unit 6, and a display unit 7;

[0026] A fixed plate 2 is provided above the testing table 1. A clamping mechanism 3 for fixing the drill rod 4 is provided on one end face of the fixed plate 2. For easy clamping, the clamping mechanism 3 is preferably a three-jaw chuck. The other end of the fixed plate 2 is connected to a moving mechanism 5. The moving mechanism 5 includes a sleeve 51, a stud 52 and a support plate 55. The support plate 55 is vertically fixed on the upper surface of the testing table 1. The sleeve 51 is horizontally fixed on the support plate 55. The sleeve 51 has an internal thread. The stud 52 is threaded into the sleeve 51. One end of the stud 52 is connected to the fixed plate 2. By rotating the stud 52, the horizontal movement and rotation of the drill rod 4 can be controlled, which facilitates the testing unit 6 to test the coaxiality of the drill rod 4 at different positions.

[0027] like Figure 5-6A detection unit 6 is provided on one side of the clamping mechanism 3. The detection unit 6 includes a circular tube 61, a support block 62, a detection column 64, a pressure spring 65, and a support leg 66. The circular tube 61 is fixedly connected to the detection table 1 through the support leg 66 on its outer side. The central axis of the circular tube 61 coincides with the central axis of the three-jaw chuck, the drill rod 4, and the sleeve 51, ensuring that the drill rod 4 always moves along the central axis of the circular tube 61 when passing through it, so as to facilitate the uniform force on the detection column 64. The support block 62 is fixed on the inner side of the circular tube 61. The surface of the support block 62 is connected to the detection column 64 through the pressure spring 65. A pressure sensor is provided at the connection position between the pressure spring 65 and the support block 62. During the process of the drill rod 4 entering the circular tube 61, the detection column 64 contacts the outer side of the drill rod 4. At this time, the detection column 64 will transmit pressure to the pressure spring 65, causing the pressure spring 65 to compress. At this time, the pressure sensor can detect the pressure change and detect whether the coaxiality of the drill rod 4 meets the requirements based on the pressure change of the contact between the detection column 64 and the outer side of the drill rod 4.

[0028] The display unit 7 includes a mounting platform 71 and a display 72. The mounting platform 71 is fixed on the upper surface of the detection platform 1, and the display 72 is mounted on the upper surface of the mounting platform 71. The output end of the pressure sensor is electrically connected to the input end of the display 72. The display 72 displays the pressure fluctuation curve transmitted from the detection column 64 to the pressure spring 65, which can intuitively show the change in coaxiality of the drill rod 4 as it passes through the detection unit 6, thereby quickly determining whether the coaxiality of the drill rod 4 is qualified.

[0029] To facilitate single-person control of the rotation of the stud 52, the other end of the stud 52 is fixedly connected to the connecting plate 53, and a crank 54 is fixed to one end of the connecting plate 53.

[0030] To ensure the connection strength between the sleeve 51 and the support plate 55, the sleeve 51 and the support plate 55 are welded together by a reinforcing rib plate 56.

[0031] To improve the accuracy of detecting the coaxiality of the drill pipe 4 surface, three support blocks 62 are used, and the three support blocks 62 are evenly distributed along the central axis of the circular tube 61.

[0032] To eliminate the interference of friction when the drill pipe 4 contacts the detection column 64, the contact surface between the detection column 64 and the outer side of the drill pipe 4 is a smooth arc-shaped surface.

[0033] To ensure that the direction of pressure transmission of the detection column 64 is perpendicular to the support block 62 when subjected to the pressure of the drill pipe 4, a guide tube 63 is fixed perpendicularly to the surface of the support block 62. The detection column 64 is located inside the guide tube 63 and moves along the axial direction of the guide tube 63 to ensure that the pressure signal output by the pressure sensor is accurate.

[0034] To facilitate workers' observation of pressure fluctuations on the monitor 72, the display interface of the monitor 72 is facing upwards.

[0035] In use: First, clamp and fix the drill rod 4 to be tested using a three-jaw chuck. Then, rotate the crank handle 54 to move the drill rod 4 along the central axis of the circular tube 61 of the detection unit 6, while the drill rod 4 itself continues to rotate. When the drill rod 4 contacts the three detection posts 64, the detection posts 64 are pushed vertically by the drill rod 4, causing the detection posts 64 to compress the pressure spring 65. At this time, the pressure sensor collects the pressure signal of the pressure spring 65 and transmits it to the display 72. As the drill rod 4 continues to advance, the display 72 forms a pressure fluctuation curve based on the pressure changes. If the pressure fluctuation curve remains basically unchanged, it indicates that the coaxiality of the drill rod 4 meets the requirements; if the pressure fluctuation curve fluctuates, it indicates that the coaxiality of a certain section of the drill rod 4 is unqualified.

[0036] This invention can intuitively determine whether the coaxiality of drill rod 4 meets the requirements, greatly improving the inspection efficiency; at the same time, it can be completed by a single person, reducing manpower input, reducing the difficulty of operation, and improving the accuracy and reliability of inspection.

[0037] The parts of the utility model not described in detail are prior art. Although embodiments of the utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the utility model. The scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A device for detecting the coaxiality of drill rods used in deep hole machining, comprising a testing table (1), characterized in that: A fixed plate (2) is provided above the testing platform (1). A clamping mechanism (3) for fixing the drill rod (4) is provided on one end face of the fixed plate (2). A moving mechanism (5) is connected to the other end of the fixed plate (2). The moving mechanism (5) can move along the axis of the drill rod (4) and control its rotation. A testing unit (6) is provided on one side of the clamping mechanism (3). The detection unit (6) includes a circular tube (61), a support block (62), a detection column (64), a pressure spring (65), and a support leg (66). The circular tube (61) is fixedly connected to the detection table (1) through the support leg (66) on its outer side. The central axis of the circular tube (61) coincides with the central axis of the drill rod (4). The support block (62) is fixed on the inner side of the circular tube (61). The surface of the support block (62) is connected to the detection column (64) through the pressure spring (65). A pressure sensor is provided at the connection position between the pressure spring (65) and the support block (62). The moving mechanism (5) controls the drill rod (4) to rotate while passing through the circular tube (61). The coaxiality of the drill rod (4) is detected based on the pressure change when the detection column (64) contacts the outer side of the drill rod (4).

2. The coaxiality detection device for drill rods used in deep hole machining according to claim 1, characterized in that: The moving mechanism (5) includes a sleeve (51), a stud (52) and a support plate (55). The support plate (55) is vertically fixed to the upper surface of the testing table (1). The sleeve (51) is horizontally fixed to the support plate (55). The sleeve (51) has an internal thread. The stud (52) is threaded inside the sleeve (51). One end of the stud (52) is connected to the fixed plate (2).

3. The coaxiality detection device for drill rods used in deep hole machining according to claim 2, characterized in that: The other end of the stud (52) is fixedly connected to the connecting plate (53), and a crank (54) is fixed to one end of the connecting plate (53).

4. The coaxiality detection device for deep hole drilling rods according to claim 2, characterized in that: The sleeve (51) and the support plate (55) are welded together by a reinforcing rib plate (56).

5. The coaxiality detection device for drill rods used in deep hole machining according to claim 1, characterized in that: The clamping mechanism (3) is a three-jaw chuck.

6. The coaxiality detection device for drill rods used in deep hole machining according to claim 1, characterized in that: The number of the support blocks (62) is three, and the three support blocks (62) are evenly distributed along the central axis of the circular tube (61).

7. The coaxiality detection device for drill rods used in deep hole machining according to claim 1, characterized in that: The contact surface between the detection column (64) and the outer side of the drill rod (4) is a smooth arc-shaped surface.

8. A device for detecting the coaxiality of drill rods for deep hole machining according to claim 1 or 6, characterized in that: The surface of the support block (62) is vertically fixed with a guide tube (63), and the detection column (64) is located inside the guide tube (63) and moves along the axial direction of the guide tube (63).

9. The coaxiality detection device for drill rods used in deep hole machining according to claim 1, characterized in that: It also includes a display unit (7), which includes a mounting platform (71) and a display (72). The mounting platform (71) is fixed on the upper surface of the detection platform (1), and the display (72) is mounted on the upper surface of the mounting platform (71). The output end of the pressure sensor is electrically connected to the input end of the display (72), and the display (72) displays the pressure fluctuation curve transmitted from the detection column (64) to the pressure spring (65).

10. The coaxiality detection device for drill rods used in deep hole machining according to claim 9, characterized in that: The display interface of the display (72) faces upward.

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