Gun drill switching mechanism

Abstract

The utility model discloses a gun drill switching mechanism which comprises a base plate, the bottom of the base plate is rotationally connected with a rotating disc through a first transmission rod, the top of the first transmission rod penetrates to the position above the base plate, a first motor with a downward output shaft is installed on the top of the base plate, and the output shaft of the first motor is connected with one end of a speed reducer. The other end of the speed reducer is connected with the top of the first transmission rod, a plurality of gun drill bodies are installed on the rotating disc, a driving assembly is arranged above the base plate, and the driving assembly drives the gun drill bodies on the rotating disc to rotate. According to the gun drill switching mechanism, the rotating disc and the first motor are arranged, the first motor drives the first transmission rod to rotate through the speed reducer, then the rotating disc is driven to rotate in a limited mode, the multiple clamping heads are installed on the rotating disc, different gun drill bodies are arranged below the clamping heads, and the gun drill bodies can be switched to designated positions for machining according to needs when the gun drill switching mechanism is used.

Description

Technical Field

[0001] The utility model relates to the technical field of gun drills, in particular to a gun drill switching mechanism. Background Art

[0002] Gundrilling: Gundrilling is an effective deep-hole tool for a wide range of applications, from deep-hole machining in mold steel, fiberglass, plastics like Teflon, and high-strength alloys. Gundrilling ensures dimensional accuracy, positional precision, and straightness in deep-hole machining applications requiring tight tolerances and surface finish.

[0003] The utility model patent, publication number CN 215281170 U, discloses a gun drill clamping fixture comprising a support platform and an L-shaped fixed base. The support platform is provided with a left-right sliding groove, and the lower surface of the fixed base is provided with a slider that matches the sliding groove. The L-shaped fixed base comprises a horizontal plate and a vertical plate arranged at the front end of the horizontal plate. The top end of the vertical plate is hingedly connected to a pitch angle adjustment plate, which is hingedly connected to a left-right rotation adjustment plate that can rotate left and right. The left-right rotation adjustment plate is provided with a clamping cylinder assembly for clamping the gun drill. The clamping cylinder assembly includes a clamping cylinder, which is provided with an axial circular hole for passing the gun drill through. The clamping cylinder is provided with a first screw hole perpendicular to the clamping cylinder's central axis, and the first screw hole is provided with a set screw.

[0004] However, there are still certain defects in the above technical solution: 1. The position and angle of the gun drill 6 in the above technical solution are adjustable, which is convenient for multi-angle adjustment, but the drill bit cannot be replaced according to needs during use, resulting in certain limitations in the scope of use. Utility Model Content

[0005] The purpose of the present utility model is to provide a gun drill switching mechanism to solve the problem that the above technical solution proposed in the above background technology cannot easily replace the drill bit according to demand.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a gun drill switching mechanism, comprising a base plate,

[0007] The bottom of the base plate is rotatably connected to a rotating disk via a transmission rod 1, and the top of the transmission rod 1 extends above the base plate. A motor 1 with an output shaft facing downward is installed on the top of the base plate, and the output shaft of the motor 1 is connected to one end of a reducer, and the other end of the reducer is connected to the top of the transmission rod 1. A plurality of gun drill bodies are installed on the rotating disk, and a driving assembly is provided above the base plate, and the driving assembly drives the rotation of the gun drill body on the rotating disk.

[0008] By adopting the above technical solution, when in use, the motor 1 is started, and after being decelerated by the reducer, the transmission rod 1 is driven to rotate, so that the rotating disk rotates, and then the gun drill body in the processing position is switched, which makes it easy to replace the gun drill body in the non-processing position.

[0009] As a further solution of the present invention: a loading and unloading port is provided in the base plate, a vertical mounting hole is provided on the rotating disk, and the loading and unloading port is aligned with the mounting hole on the right side of the rotating disk.

[0010] By adopting the above technical solution, when in use, the gun drill body can be taken out from the top through the design of the loading and unloading port.

[0011] As a further solution of the present invention: an electric push rod is installed on the top of the base plate, and the output shaft of the electric push rod is connected to the bottom of the lifting plate upward, and a driving component is installed on the lifting plate.

[0012] By adopting the above technical solution, when in use, the electric push rod can drive the lifting plate to move up and down, so that the driving component is separated from the rotating disk.

[0013] As a further solution of the present invention: the driving assembly includes motor 2, the output shaft of motor 2 is equipped with bevel gear 1, and bevel gear 1 is engaged with bevel gear 2, the bottom of bevel gear 2 is connected to transmission rod 2, and the bottom of transmission rod 2 passes through the lifting plate and the base plate and is connected to the hexagonal block.

[0014] By adopting the above technical solution, when in use, the second motor drives the rotation of the first bevel gear, and then the first bevel gear drives the rotation of the second bevel gear, and the gun drill body transmits torque to the hexagonal block.

[0015] As a further solution of the present invention: an anti-wear ring is connected to the top of the gun drill body, and a chuck is installed on the top of the anti-wear ring. The chuck is located on the top of the rotating disk, and a hexagonal slot is opened on the top of the chuck.

[0016] By adopting the above technical solution, when in use, the bottom of the hexagonal clamping block is inserted into the hexagonal slot. When the hexagonal clamping block rotates, the clamping head synchronously rotates with the anti-wear ring and the gun drill body to carry out the processing process.

[0017] Compared with the prior art, the beneficial effects of the present invention are: the gun drill switching mechanism,

[0018] A rotating disk and a motor are provided. The motor drives a transmission rod through a reducer to rotate, thereby driving the rotating disk to rotate within a limited range. A plurality of chucks are installed on the rotating disk, and different gun drill bodies are provided under the chucks. When in use, the gun drill body can be switched to a specified position for processing as needed.

[0019] In addition, the gun drill switching mechanism is also provided with an electric push rod. When the rotating disk needs to rotate, the electric push rod drives the lifting plate to rise, so that the hexagonal block at the bottom of the second transmission rod is separated from the clamping head, thereby facilitating the rotation of the rotating disk. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the cross-sectional structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the top view of the rotating disk of the utility model;

[0022] Figure 3 This is a structural diagram of the chuck and anti-wear ring of the utility model.

[0023] In the figure: 1. Base plate; 101. Loading and unloading port; 2. Rotating plate; 201. Mounting hole; 3. Motor 1; 4. Reducer; 5. Transmission rod 1; 6. Electric push rod; 7. Lifting plate; 8. Motor 2; 9. Bevel gear 1; 10. Bevel gear 2; 11. Transmission rod 2; 12. Hexagonal clamping block; 13. Chuck; 1301. Hexagonal slot; 14. Anti-wear ring; 15. Gun drill body. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figure 1-3 The utility model provides a technical solution: a gun drill switching mechanism, including a base plate 1,

[0026] The bottom of the base plate 1 is rotatably connected to the rotating disk 2 via a transmission rod 5, and the top of the transmission rod 5 extends above the base plate 1. A motor 3 with an output shaft facing downward is installed on the top of the base plate 1. The output shaft of the motor 3 is connected to one end of a reducer 4, and the other end of the reducer 4 is connected to the top of the transmission rod 5. A plurality of gun drill bodies 15 are installed on the rotating disk 2. A drive assembly is provided above the base plate 1, and the drive assembly drives the rotation of the gun drill bodies 15 on the rotating disk 2.

[0027] Specifically, an anti-drop ring is also installed on the top of the transmission rod 5 to prevent the height of the transmission rod 5 from changing and affecting the rotation of the rotating disk 2.

[0028] See also Figure 1 and Figure 2, further, a loading and unloading port 101 is opened in the base plate 1, and a vertical mounting hole 201 is opened on the rotating disk 2, and the loading and unloading port 101 is aligned with the mounting hole 201 on the right side of the rotating disk 2;

[0029] Specifically, after the rotating disk 2 stops rotating, the gun drill body 15 located at the bottom of the loading and unloading port 101 can be taken out from below to avoid affecting the movement of the workpiece being processed.

[0030] See also Figure 1 Furthermore, an electric push rod 6 is installed on the top of the base plate 1, and the output shaft of the electric push rod 6 is connected to the bottom of the lifting plate 7 upward, and a driving component is installed on the lifting plate 7;

[0031] Specifically, a fixed connecting frame is provided between the bottom of the second motor 8 and the lifting plate 7 to prevent the position of the second motor 8 from being offset.

[0032] See also Figure 1 Furthermore, the drive assembly includes a second motor 8, a bevel gear 9 is mounted on the output shaft of the second motor 8, and the bevel gear 9 is engaged with the second bevel gear 10, the bottom of the second bevel gear 10 is connected to the second transmission rod 11, and the bottom of the second transmission rod 11 passes through the lifting plate 7 and the base plate 1 and is connected to the hexagonal block 12;

[0033] Specifically, the transmission rod 2 11 is provided with anti-slip rings at the top and bottom of the lifting plate 7 , so that the transmission rod 2 11 can be lifted and lowered synchronously when the lifting plate 7 is lifted and lowered.

[0034] See also Figure 3 Furthermore, an anti-wear ring 14 is connected to the top of the gun drill body 15, and a chuck 13 is installed on the top of the anti-wear ring 14. The chuck 13 is located on the top of the rotating disk 2, and a hexagonal slot 1301 is opened on the top of the chuck 13;

[0035] Specifically, the anti-wear ring 14 is located in the mounting hole 201 opened on the rotating disk 2, and the outer diameter of the anti-wear ring 14 is the same as the diameter of the mounting hole 201, while the diameter of the chuck 13 is larger than the diameter of the mounting hole 201, which facilitates the rotation of the gun drill body 15 while preventing the installed gun drill body 15 from shaking during processing.

[0036] Working principle: When using the gun drill switching mechanism, when the gun drill body 15 needs to be replaced, the electric push rod 6 is first started to drive the lifting plate 7 to rise, and then the hexagonal block 12 at the bottom of the transmission rod 11 is disengaged from the hexagonal slot 1301, and then the motor 1 is started, and after deceleration by the reducer 4, the transmission rod 15 is driven to rotate, so that the rotating disk 2 rotates, and then the gun drill body 15 in the processing position is switched, which facilitates the replacement of the gun drill body 15 in the non-processing position, and then the electric push rod 6 is contracted to make the hexagonal block 12 inserted into the hexagonal slot 1301, and then the motor 2 8 can drive the rotation of the transmission rod 2 11, and the torque is transmitted to the gun drill body 15 through the hexagonal block 12 and the chuck 13 to realize the subsequent processing process. The content not described in detail in this specification belongs to the existing technology known to professional and technical personnel in this field.

[0037] The directions or positional relationships indicated by terms such as "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the protection content of the present invention.

[0038] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A gun drill switching mechanism, comprising a base plate (1), characterized in that: The bottom of the base plate (1) is rotatably connected to a rotating disk (2) via a transmission rod (5), and the top of the transmission rod (5) extends above the base plate (1). A motor (3) with an output shaft facing downward is installed on the top of the base plate (1), and the output shaft of the motor (3) is connected to one end of a reducer (4), and the other end of the reducer (4) is connected to the top of the transmission rod (5). A plurality of gun drill bodies (15) are installed on the rotating disk (2). A driving assembly is provided above the base plate (1), and the driving assembly drives the rotation of the gun drill bodies (15) on the rotating disk (2).

2. The gun drill switching mechanism according to claim 1, characterized in that: A loading and unloading opening (101) is provided in the base plate (1), a vertical mounting hole (201) is provided on the rotating disk (2), and the loading and unloading opening (101) is aligned with the mounting hole (201) on the right side of the rotating disk (2).

3. The gun drill switching mechanism according to claim 1, characterized in that: An electric push rod (6) is installed on the top of the base plate (1), and the output shaft of the electric push rod (6) is connected to the bottom of the lifting plate (7) facing upwards, and a driving component is installed on the lifting plate (7).

4. The gun drill switching mechanism according to claim 3, characterized in that: The driving assembly includes a second motor (8), an output shaft of the second motor (8) is provided with a first bevel gear (9), and the first bevel gear (9) is meshed with a second bevel gear (10), the bottom of the second bevel gear (10) is connected to a second transmission rod (11), and the bottom of the second transmission rod (11) passes through the lifting plate (7) and the base plate (1) and is connected to the hexagonal clamping block (12).

5. The gun drill switching mechanism according to claim 1, characterized in that: The top of the gun drill body (15) is connected to an anti-wear ring (14), and a chuck (13) is installed on the top of the anti-wear ring (14). The chuck (13) is located on the top of the rotating disk (2), and a hexagonal slot (1301) is opened on the top of the chuck (13).

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