Ultrasonic drilling device

Abstract

The utility model relates to the technical field of machine tool machining, and discloses an ultrasonic drilling device which comprises a drill body, an ultrasonic drilling device, an ultrasonic drilling device and an ultrasonic drilling device, the drill body comprises an energy converter, an amplitude-change pole and a gun handle, the energy converter is fixedly connected with the amplitude-change pole, and the output end of the gun handle is fixedly connected with the amplitude-change pole and drives the amplitude-change pole to rotate; the drill bushing can allow a drill bit fixedly mounted at the front end of the amplitude-change pole to penetrate through; the fixed end of the feeding driving assembly is arranged on the gun handle, the movable end of the feeding driving assembly is fixedly connected with the drill bushing, and the feeding driving assembly drives the drill body to reciprocate relative to the drill bushing; the first guide structure is located on one side of the drill bit and used for guiding the drill body to move in the axial direction of the amplitude-change pole, one end of the first guide structure is slidably connected with the gun handle, and the other end of the first guide structure is fixedly connected with the drill sleeve. According to the ultrasonic drilling device, the drill bit can be conveniently replaced, the operation of workers is simplified, the labor intensity of the workers is reduced, the feeding direction can be guaranteed, and the drilling position precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tool processing, in particular to an ultrasonic drilling device. Background Art

[0002] Currently, handheld drills are commonly used for drilling operations. A guide sleeve and a fixed sleeve are placed outside the drill bit of the handheld drill, and the slide between the sleeves guides the drill bit. However, when replacing the drill bit, the fixed sleeve and guide sleeve must be removed, which is a cumbersome operation. Utility Model Content

[0003] The purpose of the utility model is to provide an ultrasonic drilling device which can facilitate the replacement of a drill bit.

[0004] In order to achieve the above object, the utility model provides an ultrasonic drilling device, comprising:

[0005] The drill body comprises: a transducer, a horn and a gun handle, wherein the transducer is fixedly connected to the horn, and the output end of the gun handle is fixedly connected to the horn and drives the horn to rotate;

[0006] a drill sleeve, the drill sleeve allowing a drill bit fixedly mounted on the front end of the horn to pass through;

[0007] A feed drive assembly, a fixed end of which is disposed on the gun handle, a movable end of which is fixedly connected to the drill sleeve, and the feed drive assembly drives the drill body to reciprocate relative to the drill sleeve;

[0008] The first guide structure is located on one side of the drill bit and is used to guide the drill body to move axially along the amplitude rod. One end of the first guide structure is slidably connected to the gun handle, and the other end is fixedly connected to the drill sleeve.

[0009] In some embodiments of the present application:

[0010] The first guide structure is located between the drill bit and the feed drive assembly.

[0011] In some embodiments of the present application:

[0012] The axial direction of the first guide structure, the axial direction of the drill bit and the moving direction of the movable end of the feed drive assembly are arranged parallel to each other.

[0013] In some embodiments of the present application:

[0014] It also includes a connecting plate installed between the drill sleeve and the gun handle, and the first guide structure is fixedly installed on the connecting plate, and the movable end of the feed drive assembly is fixedly connected to the drill sleeve through the connecting plate.

[0015] In some embodiments of the present application:

[0016] It also includes a damper, wherein the movable end of the damper is tightly pressed against the connecting plate, and the fixed end of the damper is fixedly connected to the gun handle.

[0017] In some embodiments of the present application:

[0018] It also includes a second guide structure installed between the gun handle and the connecting plate, one of the gun handle and the connecting plate is slidably connected to the second guide structure, and the other of the gun handle and the connecting plate is fixedly connected to the second guide structure.

[0019] In some embodiments of the present application:

[0020] The damper is located on a side of the feed drive assembly facing away from the drill bit, and the second guide structure is located between the feed drive assembly and the damper.

[0021] In some embodiments of the present application:

[0022] It also includes a limiting piece fixedly provided on the connecting plate, and the movable end of the damper is pressed against the rear end surface of the limiting piece.

[0023] In some embodiments of the present application:

[0024] It also includes a fixing plate fixedly connected to the drill sleeve, the first guide structure and the drill sleeve are fixedly connected through the fixing plate, and the movable end of the feed drive assembly is fixedly connected to the drill sleeve through the fixing plate.

[0025] In some embodiments of the present application:

[0026] It also includes a mounting plate connected to the gun handle, the fixed end of the feed drive assembly is fixedly connected to the gun handle through the mounting plate, and the first guide structure is slidably connected to the gun handle through the mounting plate.

[0027] The utility model provides an ultrasonic drilling device, which has the following advantages compared with the prior art:

[0028] The ultrasonic drilling device of the present invention includes a drill body, a drill sleeve, a feed drive assembly, and a first guide structure. The drill body converts electromagnetic energy into mechanical energy via a transducer. Furthermore, by arranging the drill sleeve and the feed drive assembly, the drill bit is restrained by the drill sleeve, and the feed drive assembly provides feed for the drill bit. The first guide structure is arranged on one side of the drill sleeve. When replacing the drill bit, there is no need to remove the fixed sleeve and guide sleeve as in the prior art. The drill bit can be directly replaced, simplifying the operation and reducing labor intensity. Furthermore, the first guide structure guides the drill body to move axially along the horn, thereby ensuring feed direction and improving drilling position accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of an ultrasonic drilling device according to an embodiment of the present utility model.

[0030] Figure 2 yes Figure 1 Enlarged schematic diagram of point A in the middle.

[0031] Figure 3 It is a schematic diagram of the ultrasonic drilling device according to an embodiment of the present invention from another angle.

[0032] Figure 4 yes Figure 3 Enlarged schematic diagram of point B in the middle.

[0033] Figure 5 It is a cross-sectional view of an ultrasonic drilling device according to an embodiment of the present invention.

[0034] Figure 6 It is a partial structural diagram of an ultrasonic drilling device according to an embodiment of the present utility model.

[0035] Figure 7 yes Figure 6 Disassembled diagram of the middle part of the structure.

[0036] In the figure, 1. drill body; 2. drill sleeve; 3. feed drive assembly; 4. first guide structure; 5. fixing plate; 6. connecting plate; 7. damper; 8. second guide structure; 9. limiter; 10. mounting plate; 11. transducer; 12. amplitude rod; 13. gun handle; 14. drill bit; 15. drilling template; 16. retaining screw; 17. limiting step; 18. air avoidance groove; 19. slip ring; 20. limiting hole; 21. retaining hole. DETAILED DESCRIPTION

[0037] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0038] In the description of the present invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0040] In addition, in the description of the present invention, unless otherwise specified, “a plurality of” means two or more.

[0041] For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0042] Please refer to Figure 1 、 Figure 3 and Figure 5 An ultrasonic drilling device according to a preferred embodiment of the present invention includes: a drill body 1, a drill sleeve 2, a feed drive assembly 3 and a first guide structure 4.

[0043] The drill body 1 includes: a transducer 11, a horn 12 and a gun handle 13. The transducer 11 is fixedly connected to the horn 12, and the output end of the gun handle 13 is fixedly connected to the horn 12 and drives the horn 12 to rotate. The front end of the horn 12 can be installed with a drill bit 14.

[0044] The gun handle 13 drives the horn 12 and the transducer 11 to rotate. The transducer 11 converts electromagnetic energy into mechanical energy, which is amplified by the horn 12 and transmitted to the drill bit 14 at the front end to achieve drilling operation.

[0045] The drill sleeve 2 allows a drill bit 14 to pass through. The drill bit 14 passes through the drill sleeve 2 and then performs a drilling operation on the workpiece to be processed.

[0046] The fixed end of the feed drive assembly 3 is arranged on the gun handle 13 , and the movable end of the feed drive assembly 3 is fixedly connected to the drill sleeve 2 . The feed drive assembly 3 drives the drill body 1 to reciprocate relative to the drill sleeve 2 .

[0047] Under the action of the feed drive assembly 3, the drill bit 14 can move along the drill sleeve 2, avoiding radial runout and ensuring stable drilling quality. In addition, the ultrasonic drilling device is combined with ultrasonic machining to reduce cutting force and extend tool life.

[0048] In this embodiment, the feed drive assembly 3 is a cylinder. When the feed drive assembly 3 drives the drill body 1 to move relative to the drill sleeve 2, since the drill sleeve 2 is fixed on the drill template 15, when the cylinder is driven, the cylinder barrel of the cylinder moves toward the direction of the cylinder piston rod, thereby driving the drill body 1 to move toward the side of the drill sleeve 2.

[0049] The gun handle 13 drives the drill bit 14 to rotate under the restriction of the drill sleeve 2 through the horn 12, and the feed drive assembly 3 drives the drill body 1 and the drill sleeve 2 to move relative to each other, thereby realizing the drilling operation on the workpiece.

[0050] One end of the first guide structure 4 is slidably connected to the gun handle 13, and the other end of the first guide structure 4 is fixedly connected to the drill sleeve 2. The first guide structure 4 is located on one side of the drill bit 14 and is used to guide the axial movement of the drill body 1 along the horn 12. In other embodiments, one end of the first guide structure can also be fixedly connected to the gun handle, and the other end can be slidably connected to the drill sleeve. Of course, in this case, the drill template connected to the drill sleeve can also be provided with a through hole according to actual conditions to facilitate the passage of the first guide structure.

[0051] The setting of the first guide structure 4 can guide the drill body 1 to move relative to the drill sleeve 2 along the axial direction of the amplitude rod 12, replacing the guide sleeve and the fixed sleeve that are sleeved on the outer periphery of the drill bit 14 and installed between the gun handle and the drill sleeve in the prior art. The first guide structure 4 is set on one side of the drill sleeve 2. When replacing the drill bit 14, there is no need to disassemble the fixed sleeve and the guide sleeve as in the prior art. The tool clamp can be directly loosened and the drill bit 14 can be taken out of the drill sleeve 2. In this way, the drill bit 14 can be replaced, thereby simplifying the tool changing operation and reducing the labor intensity of workers.

[0052] The ultrasonic drilling device also includes a connecting plate 6 installed between the drill sleeve 2 and the gun handle 13. The first guide structure 4 passes through the connecting plate 6, and the first guide structure 4 is fixedly connected to the connecting plate 6. The movable end of the feed drive assembly 3 is fixedly connected to the drill sleeve 2 through the connecting plate 6.

[0053] During the feeding process, the connecting plate 6 remains stationary relative to the drill sleeve 2 , and moves relative to the gun handle 13 .

[0054] The provision of the connecting plate 6 can reinforce the first guide structure 4, prevent the first guide structure 4 from bending, improve the stability of the first guide structure 4, and reduce the size of the feed drive assembly 3, thereby making the overall size and weight of the ultrasonic drill small.

[0055] The first guide structure 4 is located between the drill bit 14 and the feed drive assembly 3. The first guide structure 4 and the feed drive assembly 3 are located on the same side of the drill bit 14. This provides more space for removing and installing the drill bit 14 when replacing it, making it easier to replace the drill bit 14. Furthermore, this structure reduces the torque generated by the feed drive assembly 3, resulting in a relatively small force on the first guide structure 4 at the connecting plate 6, making it less likely to deform or tilt.

[0056] In the prior art, a fixed sleeve and a guide sleeve, acting as a guide unit, slide against each other. The guide unit is located between the drill sleeve and the gun handle, connecting them to each other and enabling relative movement under the influence of a feed drive assembly. However, due to the influence of the feed drive assembly and other factors, such as the guide unit's own gravity, the relative sliding between the guide sleeve and the fixed sleeve can become stuck, affecting drilling quality.

[0057] The first guide structure 4 is rod-shaped, and the axial direction of the first guide structure 4 , the axial direction of the drill bit 14 and the movement direction of the feed drive assembly 3 are arranged parallel to each other to ensure the feeding direction of the drill bit 14 .

[0058] In this embodiment, two first guide structures 4 are provided and are arranged parallel to each other, further ensuring the stability of the feeding direction of the drill bit 14.

[0059] The ultrasonic drilling device further includes a fixing plate 5 fixedly connected to the drill sleeve 2 , the first guide structure 4 is fixedly connected to the drill sleeve 2 via the fixing plate 5 , and the movable end of the feed drive assembly 3 is fixedly connected to the drill sleeve 2 via the fixing plate 5 .

[0060] The fixed plate 5 securely connects the movable end of the feed drive assembly 3 to the drill sleeve 2. Specifically, the fixed plate 5 has a through hole into which a portion of the drill sleeve 2 is threaded. The other portion of the drill sleeve 2 is located on the side of the fixed plate 5 facing away from the gun handle 13. The drill bit 14 passes through the drill sleeve 2 and the fixed plate 5.

[0061] The fixing plate 5 is stationary relative to the connecting plate 6 , and moves relative to the gun handle 13 .

[0062] The ultrasonic drilling device further includes a damper 7 located on the side of the feed drive assembly 3 away from the drill bit 14 . The movable end of the damper 7 is tightly pressed against the connecting plate 6 , and the fixed end of the damper 7 is fixedly connected to the gun handle 13 .

[0063] The setting of the damper 7 can control the movement speed of the feed drive assembly 3.

[0064] The movable end of the damper 7 abuts against the connecting plate 6. Compared to a solution that abuts directly against the fixed plate 5 or the drill sleeve 2, this reduces the size of the damper 7, thereby reducing the overall size and weight of the ultrasonic drill. Furthermore, the damper 7 exerts a forward force on the connecting plate 6, while the feed drive assembly 3 exerts a backward force on the connecting plate 6. Analysis of the connection between the first guide structure 4 and the connecting plate 6 shows that the forces exerted by the damper 7 and the feed drive assembly 3 at this connection are balanced, thereby preventing the first guide structure 4 from bending at the connection, ensuring smooth sliding of the first guide structure 4 and ensuring smooth feed of the drill bit 14.

[0065] The ultrasonic drilling device also includes a second guide structure 8 installed between the gun handle 13 and the connecting plate 6, one of the gun handle 13 and the connecting plate 6 is slidably connected to the second guide structure 8, and the other of the gun handle 13 and the connecting plate 6 is fixedly connected to the second guide structure 8.

[0066] The second guide structure 8 is provided to guide the movement of the damper 7, thereby better controlling the movement speed of the damper piston rod and stabilizing it. Furthermore, the second guide structure 8 can also guide the movement direction of the feed drive assembly 3. The damper 7 is provided to control the movement speed of the feed drive assembly 3, so it is preferably located close to the feed drive assembly 3. In other embodiments, the damper can also be provided at other locations, such as on the side of the feed drive assembly close to the drill bit, between the first guide structure and the feed drive assembly, or between the first guide structure and the drill bit.

[0067] In this embodiment, the second guide structure 8 is slidably connected to the connecting plate 6 , and the second guide structure 8 is fixedly connected to the gun handle 13 . The second guide structure 8 is located between the feed drive assembly 3 and the damper 7 .

[0068] Through such a structure, the second guide structure 8 is slidably connected to the connecting plate 6, which can reduce the force on the connecting plate 6. Since the unbalanced force on the first guide structure 4 in this embodiment will affect the jamming of the drill bit 14 during feeding, if the second guide structure 8 is fixedly connected to the connecting plate 6, the force on the first guide structure 4 will be more complicated, making it difficult to solve the jamming problem of the drill bit 14 during feeding.

[0069] The second guide structure 8 is located between the feed drive assembly 3 and the damper 7, which can reduce the overall size of the ultrasonic drilling device. In other embodiments, the second guide structure 8 can also be set at other positions.

[0070] The second guide structure 8 is rod-shaped, and the axial direction of the second guide structure 8 , the movement direction of the feed drive assembly 3 , and the movement direction of the damper 7 are arranged parallel to each other.

[0071] In this embodiment, two second guide structures 8 are provided and are arranged parallel to each other. The axial direction of the second guide structure 8, the axial direction of the first guide structure 4, the movement direction of the feed drive assembly 3, the movement direction of the damper 7 and the axial direction of the drill bit 14 are all arranged parallel.

[0072] The ultrasonic drilling device also includes a limiter 9 passing through the connecting plate 6 , and the movable end of the damper 7 is pressed against the rear end surface of the limiter 9 . The limiter 9 is used to adjust the distance between the movable end of the damper 7 and the connecting plate 6 .

[0073] The setting of the limiter 9 can adjust the stroke of the damper 7 to match the stroke of the drill bit.

[0074] Specifically, the limit member 9 is a limit bolt, which is screwed onto the connecting plate 6. The limit member 9 can be rotated to adjust the contact position between the connecting plate 6 and the movable end of the damper 7, thereby adjusting the stroke of the damper 7.

[0075] The ultrasonic drilling device also includes a mounting plate 10 connected to the gun handle 13 , the fixed end of the feed drive assembly 3 is fixedly connected to the gun handle 13 through the mounting plate 10 , and the first guide structure 4 is slidably connected to the gun handle 13 through the mounting plate 10 .

[0076] The fixed end of the feed drive assembly 3, the fixed end of the damper 7, the first guide structure 4 and the second guide structure 8 are all mounted on the gun handle 13 via the mounting plate 10, so as to facilitate the assembly of the ultrasonic drilling device.

[0077] The connection between the mounting plate 10 and the first guide structure 4, as well as the connection between the connecting plate 6 and the second guide structure 8 are both provided with a slip ring 19. The setting of the slip ring 19 enables the first guide structure 4 to be slidably connected to the mounting plate 10 through the slip ring 19, and the second guide structure 8 to be slidably connected to the connecting plate 6 through the slip ring 19.

[0078] In addition, the ultrasonic drilling device also includes a drill template 15 and a retaining screw 16. The drill template 15 has a limiting hole 20, and the drill sleeve 2 is inserted into the limiting hole 20. The drill template 15 has a retaining hole 21, and the retaining screw 16 is installed in the retaining hole 21. A limiting step 17 is provided on the outer circumference of the drill sleeve 2. The retaining screw 16 is tightly arranged with the limiting step 17, that is, it is fitted on the limiting step 17 to prevent the drill sleeve 2 and the drill template 15 from moving relative to each other. In order to ensure that the retaining screw 16 can be tightly pressed against the limiting step 17, an air avoidance groove 18 is also provided on the outer circumference of the drill sleeve 2, and the air avoidance groove 18 is arranged adjacent to the limiting step 17. During use, the drill template 15 and the workpiece to be processed are fixed by a clamp, and then the drill body 1 is installed on the drill template 15 through the drill sleeve 2. First, the retaining screw 16 is installed in the retaining hole 21, and then the drill sleeve 2 is installed in the limiting hole 20 in a manner that the side of the drill sleeve 2 with the air avoidance groove 18 corresponds to the retaining screw 16. Then, the drill sleeve 2 is rotated so that the limiting step 17 is tightly connected with the retaining screw 16, so that the drill sleeve 2 is fixed on the drill template 15, limiting the relative movement between the drill sleeve 2 and the drill template 15, and ensuring the quality of the drilling operation.

[0079] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and replacements can be made without departing from the technical principles of the present invention. These improvements and replacements should also be regarded as the scope of protection of the present invention.

Claims

1. An ultrasonic drilling device, characterized in that: include: The drill body comprises: a transducer, a horn and a gun handle, wherein the transducer is fixedly connected to the horn, and the output end of the gun handle is fixedly connected to the horn and drives the horn to rotate; a drill sleeve, the drill sleeve allowing a drill bit fixedly mounted on the front end of the horn to pass through; A feed drive assembly, a fixed end of which is disposed on the gun handle, a movable end of which is fixedly connected to the drill sleeve, and the feed drive assembly drives the drill body to reciprocate relative to the drill sleeve; The first guide structure is located on one side of the drill bit and is used to guide the drill body to move axially along the amplitude rod. One end of the first guide structure is slidably connected to the gun handle, and the other end is fixedly connected to the drill sleeve.

2. The ultrasonic drilling device according to claim 1, characterized in that: The first guide structure is located between the drill bit and the feed drive assembly.

3. The ultrasonic drilling device according to claim 1, wherein: The axial direction of the first guide structure, the axial direction of the drill bit and the moving direction of the movable end of the feed drive assembly are arranged parallel to each other.

4. The ultrasonic drilling device according to claim 1 or 2, characterized in that: It also includes a connecting plate installed between the drill sleeve and the gun handle, and the first guide structure is fixedly installed on the connecting plate, and the movable end of the feed drive assembly is fixedly connected to the drill sleeve through the connecting plate.

5. The ultrasonic drilling device according to claim 4, characterized in that: It also includes a damper, wherein the movable end of the damper is tightly pressed against the connecting plate, and the fixed end of the damper is fixedly connected to the gun handle.

6. The ultrasonic drilling device according to claim 5, characterized in that It also includes a second guide structure installed between the gun handle and the connecting plate, one of the gun handle and the connecting plate is slidably connected to the second guide structure, and the other of the gun handle and the connecting plate is fixedly connected to the second guide structure.

7. The ultrasonic drilling device according to claim 6, characterized in that: The damper is located on a side of the feed drive assembly facing away from the drill bit, and the second guide structure is located between the feed drive assembly and the damper.

8. The ultrasonic drilling device according to claim 5, characterized in that It also includes a limiting piece fixedly provided on the connecting plate, and the movable end of the damper is pressed against the rear end surface of the limiting piece.

9. The ultrasonic drilling device according to claim 1, wherein: It also includes a fixing plate fixedly connected to the drill sleeve, the first guide structure and the drill sleeve are fixedly connected through the fixing plate, and the movable end of the feed drive assembly is fixedly connected to the drill sleeve through the fixing plate.

10. The ultrasonic drilling device according to claim 1, characterized in that It also includes a mounting plate connected to the gun handle, the fixed end of the feed drive assembly is fixedly connected to the gun handle through the mounting plate, and the first guide structure is slidably connected to the gun handle through the mounting plate.

Images