An ultrasonic drill

Abstract

This utility model belongs to the field of drilling, specifically disclosing an ultrasonic drill, which includes: a fixed frame, a drill body, a feed drive unit, and a housing; the fixed frame has a guide rod extending in the front-rear direction; the drill body is slidably connected to the guide rod; the feed drive unit includes a drive unit and a linear drive device; the drive unit is connected to the drill body, thereby driving the drill body to perform linear reciprocating motion relative to the linear drive device along the guide rod; when the ultrasonic drill is feeding the hole, the linear drive device only needs to push the drill body to move, without driving the entire ultrasonic drill to move. Compared with the prior art, which requires driving the entire ultrasonic drill to move to feed the hole, this reduces the feed driving force of the linear drive device, reduces the rated power, reduces energy consumption, and saves costs.

Description

Technical Field

[0001] This utility model relates to the field of drilling, and in particular to an ultrasonic drill. Background Technology

[0002] Automatic feed drilling, as an emerging semi-automatic drilling technology, uses its own mechanical structure combined with a customized drill jig for clamping and positioning. Optional modules allow for setting the rotational speed and feed rate. Compared to robots and drilling / riveting machines, it offers advantages such as no limitation on the number of end effectors, small drilling space requirements, high flexibility, simple operation, lightweight, and low cost. Compared to current handheld pneumatic drills, it offers higher drilling accuracy and efficiency, higher drilling consistency and stability, and significantly reduces operator workload. Existing automatic feed ultrasonic drills all use a power unit to move the entire ultrasonic drill (including the feed drive) to advance the drill bit. Because the entire ultrasonic drill needs to be moved, the power unit has a large drive power and high energy consumption. Utility Model Content

[0003] The purpose of this invention is to provide an ultrasonic drill to solve the technical problem in the prior art where the power unit needs to drive the entire ultrasonic drill to move in order to feed the borehole, resulting in a large required power unit driving power and high energy consumption.

[0004] To achieve the above objectives, this utility model provides an ultrasonic drill, comprising:

[0005] A mounting bracket having guide rods extending in the front-to-back direction;

[0006] The drill body is slidably connected to the guide rod; the front end of the drill body is used to connect the drill bit.

[0007] The feed drive unit is located on one side of the drill body. The feed drive unit includes a drive unit and a linear drive device for driving the drive unit to move back and forth. The linear drive device is fixedly mounted on the fixed frame. The drive unit is fixedly connected to the drill body, thereby driving the drill body to perform linear reciprocating motion relative to the linear drive device along the guide rod.

[0008] Preferably, it also includes a housing, which is fixedly mounted on the outer periphery of the mounting frame, at least a portion of the drill body and the linear drive device are placed in the housing, and the drill bit can extend out of the housing.

[0009] Preferably, the fixing frame further includes a front plate and a middle plate that are fixedly connected to the inner wall of the housing, the front plate being located in front of the middle plate, and the guide rod being installed between the front plate and the middle plate. The front plate is also fixedly connected to the front end of the linear drive device.

[0010] Preferably, the driving unit includes a driving rod and a rear plate, the rear plate being located behind the middle plate, and the driving rod extending in the front-rear direction; one end of the driving rod is slidably connected to the linear driving device, and the other end is fixedly connected to the rear plate, and the rear plate is also connected to the rear end of the drill body to realize the connection between the driving unit and the rear end of the drill body.

[0011] Preferably, it further includes a damping unit located on the side of the linear drive device and placed in the housing, the movable end of the damping unit being abutted against the rear plate, and the fixed end of the damping unit being fixedly disposed on the middle plate.

[0012] Preferably, it further includes a handle, which is fixedly connected to the housing and is located on the lower side of the linear drive device.

[0013] Preferably, it further includes a base plate located below the linear drive device, and the front end of the base plate is clamped and fixed between the bottom of the front plate and the inner wall of the housing; the fixed end of the damping unit is located below the base plate; the handle is disposed outside the fixed end of the damping unit, and the handle is connected to the base plate to realize the connection between the handle and the housing, and the rear end of the linear drive device is also fixedly connected to the middle plate.

[0014] Preferably, there are two damping units, and the two damping units are located on opposite sides of the feed drive unit.

[0015] Preferably, it further includes a damping adjustment device installed at the front end of the damping unit; the damping adjustment device is located outside the housing.

[0016] Preferably, the housing has a rear cover located at the rear end of the housing, and the rear cover is provided with a through hole for the rear end of the drive unit and the drill body to pass through.

[0017] Preferably, the front end of the outer casing is provided with an opening, and the front plate closes the opening; the front plate is provided with a through hole for the drill bit to pass through.

[0018] Preferably, it further includes: a fixing sleeve; the fixing sleeve is connected to the front plate and the fixing sleeve is located on the front side of the front plate; the fixing sleeve is provided with a first mounting part for installing a drill sleeve, the first mounting part and the front plate have a cavity, and the front end of the drill body can pass through the through hole of the front plate and extend into the cavity.

[0019] Preferably, the fixing sleeve is provided with a replacement notch, which communicates with the cavity.

[0020] Preferably, the drill body is inserted into the fixing frame, and both the front and rear ends of the drill body extend out of the fixing frame. The drive unit extends out of the fixing frame and is fixedly connected to the rear end of the drill body.

[0021] Preferably, the drill body includes an ultrasonic unit and a rotary drive unit arranged sequentially from front to back; the front end of the ultrasonic unit is provided with a second mounting part for mounting the drill bit.

[0022] Preferably, the number of guide rods is four, and the four guide rods are evenly distributed around the drill body.

[0023] The ultrasonic drill provided by this utility model has the following advantages: the linear drive device of the ultrasonic drill drives the drill body to move back and forth along the guide rod through the drive unit. Thus, the fixed frame and the linear drive device are fixed when the ultrasonic drill is feeding the hole. The linear drive device only needs to push the drill body to move when the ultrasonic drill is feeding the hole, without having to drive the entire ultrasonic drill, including the feed drive device, to move. Compared with the prior art, which requires driving the entire ultrasonic drill to move to feed the hole, the ultrasonic drill of this embodiment can reduce the feed driving force of the linear drive device, reduce the rated power, reduce energy consumption, improve energy efficiency, extend the service life of the linear drive device, and save costs.

[0024] Moreover, since the power unit is external, it is susceptible to external interference, which can cause the ultrasonic drill to vibrate during feeding, affecting the drilling quality. Therefore, this application uses a shell to cover the guide rod and the linear drive device to prevent external factors from interfering with the linear drive device's movement of the drill body back and forth, reducing the vibration of the drill body during movement, ensuring that the drill body can feed forward better for drilling and improving drilling quality.

[0025] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the first embodiment of the present utility model;

[0027] Figure 2 This is a schematic diagram of the structure of the first embodiment of the present invention after removing part of the outer shell;

[0028] Figure 3 This is a side view of the structure of the first embodiment of the present invention after removing the outer shell;

[0029] Figure 4 This is an exploded structural diagram of the first embodiment of the present invention;

[0030] Figure 5 This is a schematic diagram of the structure of the second embodiment of the present utility model;

[0031] Figure 6 This is a schematic diagram of the structure after removing the outer shell and handle according to the second embodiment of this utility model;

[0032] Figure 7 This is a cross-sectional structural schematic diagram of the second embodiment of the present invention;

[0033] Figure 8 This is an exploded structural diagram of the second embodiment of the present invention;

[0034] Figure 9 This is a schematic diagram of the outer shell and handle structure of the second embodiment of this utility model.

[0035] In the diagram, 100 is the fixing frame; 110 is the guide rod; 120 is the through hole; 130 is the front plate; 140 is the middle plate; 200 is the drill body; 210 is the sliding bearing; 220 is the ultrasonic unit; 230 is the rotary drive unit; 240 is the second mounting part; 241 is the collet; 242 is the nut; 300 is the feed drive unit; 310 is the drive part; 311 is the drive rod; 312 is the rear plate; 320 is the linear drive device; 400 is the outer shell; 410 is the receiving cavity; 420 is the rear cover; 421 is the through hole; 430 is the opening; 500 is the damping unit; 510 is the connecting part; 520 is the damping device; 530 is the damping adjustment device; 600 is the base plate; 700 is the handle; 800 is the fixing sleeve; 810 is the first mounting part; 820 is the cavity; and 830 is the replacement notch.

[0036] 10. Drill bit; 11. Drill bushing. Detailed Implementation

[0037] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0038] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0039] In the description of this utility model, "multiple" means two or more; "greater than," "less than," and "exceeding" are understood to exclude the stated number; "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features or their sequential relationship.

[0040] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0041] Please refer to the following: Figures 1 to 9 The ultrasonic drill provided in the embodiments of this utility model will now be described.

[0042] like Figures 1 to 4 As shown, the ultrasonic drill of this utility model embodiment includes: a fixing frame 100, a drill body 200, a feed drive unit 300, and a housing 400;

[0043] The fixed frame 100 has a guide rod 110 extending in the front-back direction; the drill body 200 is slidably connected to the guide rod 110 so that the drill body 200 can move back and forth in the front-back direction; the front end of the drill body 200 is used to connect the drill bit 10, providing a basis for the drill bit 10 to move forward for feeding; the feed drive unit 300 includes a drive part 310 and a linear drive device 320 for driving the drive part 310 to move back and forth; the linear drive device 320 is fixedly mounted on the fixed frame 100, and the drive part 310 is fixedly connected to the drill body 200, so the linear drive device 320 can be used to drive the drill body 200 to move along the extension direction of the guide rod 110 to achieve the purpose of front-back movement, that is, the drive part 310 drives the drill body 200 to make linear reciprocating motion relative to the linear drive device 320 along the guide rod 110. The linear drive device 320 of the ultrasonic drill drives the drill body 200 to move back and forth along the guide rod 110 via the drive unit 310. Thus, the fixed frame 100 and the linear drive device 320 remain stationary when the ultrasonic drill is feeding the hole. The linear drive device 320 only needs to push the drill body 200 to move when the ultrasonic drill is feeding the hole, without having to drive the entire ultrasonic drill, including the feed drive device, to move. Compared with the prior art, which requires driving the entire ultrasonic drill to move to feed the hole (especially the scheme that drives the feed drive device to move to feed the hole), the ultrasonic drill of this embodiment can reduce the feed driving force of the linear drive device, reduce the rated power, reduce energy consumption, improve energy efficiency, extend the service life of the linear drive device, and save costs.

[0044] The housing 400 is fixedly mounted on the outer periphery of the mounting bracket 100. At least a portion of the drill body 200 and the linear drive device 320 are housed within the housing 400, and the drill bit 10 can extend out of the housing 400. See details. Figure 1-2 The housing 400 has an internal receiving cavity 410. The fixing frame 100 is fixedly connected to the housing 400. The linear drive device 320 and the guide rod 110 are both located within the receiving cavity 410. The housing 400 can cover the linear drive device 320 and the guide rod 110 to prevent external factors from interfering with the movement of the linear drive device 320 driving the drill body 200 back and forth, reducing vibration of the drill body 200 during movement, ensuring better forward feed for drilling, and improving drilling quality. Furthermore, to facilitate the extension of the drill bit 10 outside the housing 400, the drill bit 10 can extend through the housing 400.

[0045] Understandably, referring to Figure 2 , Figure 4 The outer casing 400 may be provided with holes so that the receiving cavity 410 communicates with the outside, and the holes are covered by a fixing bracket 100. A through hole 120 is provided on the fixing bracket 100 so that the drill bit 10 can extend into the external space of the outer casing 400 for drilling.

[0046] In some embodiments of this utility model, reference is made to Figures 2 to 4 The fixing frame 100 further includes a front plate 130 and a middle plate 140, with the front plate 130 and the middle plate 140 respectively fixedly connected to the inner wall of the outer casing 400. The front plate 130 is located in front of the middle plate 140, and the guide rod 110 is installed between the front plate 130 and the middle plate 140. The guide rod 110 is located between the front plate 130 and the middle plate 140, that is, the connection point between the drill body 200 and the guide rod 110 is located between the front plate 130 and the middle plate 140. This serves to fix the guide rod 110 while limiting the travel of the drill body 200 in the front-rear direction using the front plate 130 and the middle plate 140, and also prevents the drill body 200 from detaching from the guide rod 110, ensuring more stable and reliable movement of the drill body 200. The front plate 130 is also fixedly connected to the front end of the linear drive device 320.

[0047] In some embodiments of this utility model, reference is made to Figures 2 to 4The driving unit 310 includes a driving rod 311 and a rear plate 312. The rear plate 312 is located behind the middle plate 140. The driving rod 311 extends in the front-rear direction. One end of the driving rod 311 is slidably connected to the linear driving device 320, and the other end is fixedly connected to the rear plate 312. The rear plate 312 is also connected to the rear end of the drill body 200 to realize the connection between the driving unit and the rear end of the drill body. The linear driving device 320 can drive the driving rod 311 to move in the front-rear direction, so as to drive the rear plate 312 and the drill body 200 connected to the rear plate 312 to move back and forth together. In order to reduce the space occupied by the drill body 200 and the linear driving device 320 in the front-rear direction, the linear driving device 320 is arranged on one side of the drill body 200 so that the linear driving device 320 and the drill body 200 are stacked, reducing the space occupied by the drill body 200 and the linear driving device 320 in the front-rear direction. Specifically, in this embodiment, referring to... Figure 3 The linear drive unit 320 is located below the drill body 200.

[0048] It is understood that the linear drive device 320 can be a cylinder, hydraulic cylinder, or other drive device. In this embodiment, the linear drive device 320 is a cylinder.

[0049] In some embodiments of this utility model, reference is made to Figures 2 to 4 The ultrasonic drill also includes a damping unit 500, which is located on one side of the linear drive device 320 and housed within the housing 400. The damping unit 500 includes a connecting portion 510 and a damping device 520. The connecting portion 510 is connected to the damping device 520. The damping device 520 provides damping in the front-rear direction for the connecting portion 510. The connecting portion 510 abuts against the rear plate 312, and the damping device 520 is mounted on the fixing frame 100 and located within the receiving cavity 410. The damping unit 500 can be a damping cylinder or a damping hydraulic cylinder. The connecting portion 510 is the movable end of the damping unit 500 and can be a damping rod or other component. The damping device 520 is the corresponding cylinder body, i.e., the fixed end of the damping unit 500. The damping device 520 is housed within the receiving cavity 410, allowing the housing 400 to protect the damping device 520 and reduce external interference. By setting the damping unit 500, the linear drive device 320 can be controlled to push the drill body 200 forward more smoothly, ensuring that the drill body 200 can be fed at a better uniform speed.

[0050] In some embodiments of this utility model, reference is made to Figures 2 to 4The damping device 520 is fixedly connected to the center plate 140. The damping device 520 is fixed on the center plate 140, so that the damping device 520 can be closer to the rear plate 312, and the corresponding connection part 510 can be shorter, saving space.

[0051] In some embodiments of this utility model, reference is made to Figures 2 to 4 The ultrasonic drill also includes a handle 700, which is fixedly connected to the housing 400 and is located on the lower side of the linear drive device 320.

[0052] For solutions involving heavy linear drive devices, the ultrasonic drill also includes a base plate 600. The damping device 520 is located below the linear drive device 320, and the base plate 600 is located between the damping device 520 and the linear drive device 320. The front end of the base plate 600 is clamped and fixed between the front plate 130 and the inner wall of the outer casing 400. The handle 700 is sleeved on the outside of the damping device 520 and connected to the base plate 600 to connect the handle 700 to the outer casing 400. The edge of the base plate 600 is connected to the outer casing 400, and the front edge of the base plate 600 is connected to the front plate 130 to support the outer casing 400 and the front plate 130, increasing the mechanical strength of the entire outer casing 400 and the front plate 130, and supporting the linear drive device 320. Furthermore, the rear end of the linear drive device 320 is fixedly connected to the middle plate 140. The handle 700 is fitted on the outside of the damping device 520 and connected to the base plate 600, which allows the handle 700 to better support the base plate 600, thereby supporting the weight of the front plate 130, the outer shell 400, the linear drive device 320, and the drill body 200, making the ultrasonic drill more resistant to force.

[0053] In some embodiments of this utility model, the handle 700 is located below the linear drive device 320. The drill body 200, linear drive device 320, base plate 600, and damping device 520 are arranged sequentially from top to bottom, that is, the handle 700, damping device 520, drill body 200, and linear drive device 320 are concentrated between the front plate 130 and the middle plate 140, which shifts the center of gravity of the ultrasonic drill forward, bringing the handle 700 closer to the drill bit 10, reducing torque, and allowing the operator to better and more stably hold the ultrasonic drill. In addition, for designs with a lighter linear drive device, the base plate can be omitted, and the handle 700 can also be directly mounted on the outer casing 400, such as... Figures 5 to 9 As shown.

[0054] In some embodiments of this utility model, reference is made to Figures 6 to 8The number of damping units 500 is two, and the two damping units 500 are respectively located on both sides of the feed drive unit 300. That is, the damping units 500 can be distributed on the left and right sides of the feed drive unit 300, which can reduce the space occupied by the damping units 500 in the vertical direction and improve space utilization efficiency.

[0055] In some embodiments of this utility model, reference is made to Figures 6 to 8 The ultrasonic drill also includes a damping adjustment device 530. The damping adjustment device 530 is located outside the housing 400 and is connected to the damping device 520. The damping adjustment device 530 is used to adjust the damping of the damping device 520. The damping adjustment device 530 can be a regulating valve. By adjusting the opening and closing degree of the regulating valve, the flow rate of the damping fluid in the damping device 520 is adjusted, thereby adjusting the magnitude of the damping force to better adjust the feed speed of the drill body 200. The damping adjustment device 530 is externally located within the housing 400, allowing for convenient adjustment of the feed speed.

[0056] In some embodiments of this utility model, reference is made to Figures 7 to 9 The housing 400 has a rear cover 420 located at the rear end of the housing 400. The rear cover 420 has a through hole 421 for the rear ends of the drive unit 310 and the drill body 200 to pass through. To reduce the size of the ultrasonic drill, the rear end of the drive unit 310 (i.e., the rear plate 312) and the rear end of the drill body 200 can extend outside the housing 400 through the through hole 421. Alternatively, the rear end of the drill body and the rear plate may not extend beyond the housing, such as... Figure 2 As shown.

[0057] In some embodiments of this utility model, reference is made to Figures 6 to 8 The front end of the outer shell 400 is provided with an opening 430, and the front plate 130 closes the opening 430; the through hole 120 is provided on the front plate 130, that is, the front end of the outer shell 400 is connected to the cover by the front plate 130 for easy assembly.

[0058] In some embodiments of this utility model, reference is made to Figure 7 and Figure 8The ultrasonic drill further includes: a fixing sleeve 800; the fixing sleeve 800 is connected to the front plate 130 and is located on the front side of the front plate 130; the fixing sleeve 800 is provided with a first mounting part 810 for mounting the drill sleeve, the first mounting part 810 is located on the front side of the through hole 120, and a cavity 820 is formed between the first mounting part 810 and the front plate 130, the front end of the drill body 200 can pass through the through hole 120 of the front plate 130 and extend into the cavity 820. The first mounting part 810 mounts the drill sleeve so that the drill bit 10 can pass through the drill sleeve to drill the workpiece. The cavity 820 is used to allow the drill bit 10 to pass through so that the drill bit 10 can extend to the drill sleeve. By setting the fixing sleeve 800 and the drill sleeve, the vibration of the drill bit 10 during drilling can be reduced and the drilling quality can be improved. The drill sleeve is fixedly connected to the drill template, which is the same as the prior art, so it will not be described in detail.

[0059] In some embodiments of this utility model, reference is made to Figure 7 and Figure 8 The fixing sleeve 800 is provided with a replacement notch 830, which communicates with the cavity 820. Specifically, the drill body 200 has a replacement position on its movement path in the front-rear direction; when the drill body 200 is in the replacement position, its front end is located in the cavity 820, and the fixing sleeve 800 is provided with a replacement notch 830, which communicates with the cavity 820. That is, when the linear drive device 320 pushes the drill body 200 forward to the replacement position, the front end of the drill body 200 extends into the cavity 820, so that the operator can change the drill bit 10 from the outside through the replacement notch 830.

[0060] In some embodiments of this utility model, reference is made to Figures 6 to 8 The drill body 200 is slidably connected to the guide rod 110 via a sliding bearing 210. The outer side of the guide rod 110 has a wear-resistant coating, which can reduce friction and wear between the sliding bearing 210 and the guide rod 110 and extend its service life.

[0061] In some embodiments of this utility model, reference is made to Figures 6 to 8The drill body 200 includes an ultrasonic unit 220 and a rotary drive unit 230 arranged sequentially from front to back. The front end of the ultrasonic unit 220 has a second mounting portion 240 for mounting the drill bit 10. The rotary drive unit 230 is a pneumatic motor to drive the drill bit 10 to rotate. The ultrasonic unit 220 includes an amplitude transformer and a transducer. The ultrasonic unit 220 converts electromagnetic energy into kinetic energy to transmit ultrasonic waves to the drill bit 10, enabling the drill bit 10 to perform ultrasonic vibration drilling. The second mounting portion 240 consists of a collet 241 and a nut 242. After the drill bit 10 is inserted into the collet 241, the nut 242 can be rotated to lock the drill bit 10 within the collet 241, allowing the drill body 200 to drive the drill bit 10 to rotate.

[0062] In some embodiments of this utility model, reference is made to Figures 2 to 3 ,as well as Figure 6-8 The drill body 200 is inserted into the fixing frame 100, and the front and rear ends of the drill body 200 extend out of the fixing frame 100. The drive unit 310 extends out of the fixing frame 100 and is fixedly connected to the rear end of the drill body 200.

[0063] In some embodiments of this utility model, reference is made to Figures 2 to 3 ,as well as Figures 6 to 8 The number of guide rods 110 is four, and the four guide rods 110 are evenly distributed around the drill body 200. The even distribution of the guide rods 110 around the drill body 200 allows the drill body 200 to slide and connect with the fixing frame 100 through the four guide rods 110, ensuring that the drill body 200 can move back and forth along the fixing frame 100, allowing the drill body 200 to move forward stably to drill a hole.

[0064] In summary, in this embodiment, the linear drive device 320 of the ultrasonic drill drives the drill body 200 to move back and forth along the guide rod 110 via the drive unit 310. Therefore, the housing 400, the fixing frame 100, and the linear drive device 320 remain stationary during ultrasonic drilling. The linear drive device 320 only needs to push the drill body 200 to move during ultrasonic drilling, without needing to drive the entire ultrasonic drill. Compared to existing technologies that require driving the entire ultrasonic drill to move for drilling, this embodiment reduces the feed driving force of the linear drive device 320, lowers the rated power, reduces energy consumption, improves energy efficiency, extends the service life of the linear drive device 320, and saves costs. Furthermore, by using the housing 400 to cover the guide rod 110 and the linear drive device 320, external factors can be prevented from interfering with the movement of the linear drive device 320 driving the drill body 200 back and forth, reducing vibration of the drill body 200 during movement, ensuring better forward feed for drilling, and improving drilling quality.

[0065] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of this utility model, and these improvements and substitutions should also be considered within the protection scope of this utility model.

Claims

1. An ultrasonic drill, characterized in that, include: A mounting bracket having guide rods extending in the front-to-back direction; The drill body is slidably connected to the guide rod; the front end of the drill body is used to connect the drill bit. The feed drive unit is located on one side of the drill body. The feed drive unit includes a drive unit and a linear drive device for driving the drive unit to move back and forth. The linear drive device is fixedly mounted on the fixed frame. The drive unit is fixedly connected to the drill body, thereby driving the drill body to perform linear reciprocating motion relative to the linear drive device along the guide rod.

2. The ultrasonic drill according to claim 1, characterized in that, It also includes a housing, which is fixedly mounted on the outer periphery of the mounting frame, at least a portion of the drill body and the linear drive device are placed in the housing, and the drill bit can extend out of the housing.

3. The ultrasonic drill according to claim 2, characterized in that, The mounting bracket also includes a front plate and a middle plate, which are fixedly connected to the inner wall of the housing, respectively. The front plate is located in front of the middle plate, and the guide rod is installed between the front plate and the middle plate. The front plate is also fixedly connected to the front end of the linear drive device.

4. The ultrasonic drill according to claim 3, characterized in that, The drive unit includes a drive rod and a rear plate. The rear plate is located behind the middle plate. The drive rod extends in the front-rear direction. One end of the drive rod is slidably connected to the linear drive device, and the other end is fixedly connected to the rear plate. The rear plate is also connected to the rear end of the drill body to realize the connection between the drive unit and the rear end of the drill body.

5. The ultrasonic drill according to claim 4, characterized in that, It also includes a damping unit located on the side of the linear drive device and placed in the housing, wherein the movable end of the damping unit is abutted against the rear plate and the fixed end of the damping unit is fixedly disposed on the middle plate.

6. The ultrasonic drill according to claim 5, characterized in that, Also includes: A handle is fixedly connected to the housing and is located on the lower side of the linear drive device.

7. The ultrasonic drill according to claim 6, characterized in that, It also includes a base plate located below the linear drive device, and the front end of the base plate is clamped and fixed between the bottom of the front plate and the inner wall of the housing; the fixed end of the damping unit is located below the base plate; the handle is provided outside the fixed end of the damping unit, and the handle is connected to the base plate to realize the connection between the handle and the housing; the rear end of the linear drive device is also fixedly connected to the middle plate.

8. The ultrasonic drill according to claim 5, characterized in that, The number of damping units is two, and the two damping units are located on both sides of the feed drive unit.

9. The ultrasonic drill according to claim 5, characterized in that, It also includes a damping adjustment device installed at the front end of the damping unit; the damping adjustment device is located outside the housing.

10. The ultrasonic drill according to claim 2, characterized in that, The housing has a rear cover located at the rear end of the housing, and the rear cover is provided with a through hole for the rear end of the drive unit and the drill body to pass through.

11. The ultrasonic drill according to claim 3, characterized in that, The front end of the outer casing is provided with an opening, and the front plate closes the opening; the front plate is provided with a through hole for the drill bit to pass through.

12. The ultrasonic drill according to claim 11, characterized in that, Also includes: Fixing sleeve; The fixing sleeve is connected to the front plate and is located on the front side of the front plate; the fixing sleeve is provided with a first mounting part for installing the drill sleeve, and there is a cavity between the first mounting part and the front plate, and the front end of the drill body can pass through the through hole of the front plate and extend into the cavity.

13. The ultrasonic drill according to claim 12, characterized in that, The fixing sleeve is provided with a replacement notch, which communicates with the cavity.

14. The ultrasonic drill according to claim 1, characterized in that, The drill body is inserted into the fixed frame, and both the front and rear ends of the drill body extend out of the fixed frame. The drive unit extends out of the fixed frame and is fixedly connected to the rear end of the drill body.

15. The ultrasonic drill according to claim 1, characterized in that, The drill body includes an ultrasonic unit and a rotary drive unit arranged sequentially from front to back; the front end of the ultrasonic unit is provided with a second mounting part for mounting the drill bit.

16. The ultrasonic drill according to claim 1, characterized in that, The number of guide rods is four, and the four guide rods are evenly distributed around the drill body.

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