Mini horizontal magnetic drill

Abstract

The present application provides a mini horizontal magnetic drill, which relates to the field of magnetic drills and includes a machine body, a main shaft rotatably installed inside the end of the machine body; a lifting shaft sleeve slidably installed inside the end of the machine body, and a drill bit holder rotatably installed at the bottom of the lifting shaft sleeve. The top of the drill bit holder has a spline shaft, and the bottom of the main shaft has a spline sleeve adapted to be installed with the spline shaft; a lifting seat movably installed inside the end of the machine body and located on one side of the lifting shaft sleeve. The opposite ends of the lifting seat and the lifting shaft sleeve are clamped. The lifting seat is driven by a threaded rod installed on the machine body to slide along the axial direction of the main shaft. Through the provided threaded rod and lifting seat, and the clamping connection between the lifting seat and the lifting shaft sleeve, by rotating the threaded rod forward and backward, the lifting seat can be driven to drive the lifting shaft sleeve and the drill bit holder to perform a reciprocating linear motion, realizing an operation mode of controlling the feed by rotating and operating on the horizontal plane. When the operating space on both sides of the horizontal magnetic drill is limited, the operation of drilling and feeding can be carried out smoothly.

Description

Technical Field

[0001] The present invention relates to the field of magnetic drill presses, and more particularly to a mini horizontal magnetic drill press. Background Art

[0002] A horizontal magnetic drill press, also known as a magnetic drill or magnetic electric drill, is a mobile electric tool that uses the electromagnetic principle to adsorb on the surface of steel parts for drilling operations. Its working principle is that after the electromagnet at the bottom of the machine is energized, it generates magnetism and adsorbs on the steel structure parts to achieve firm fixation.

[0003] The advantages of a general horizontal magnetic drill press are that its body is relatively low, and it is commonly used in drilling operation environments with narrow spaces. It can adsorb at different positions of the workpiece (such as the horizontal plane, side surface, top surface) for drilling and machining, and is flexible and convenient to use. However, due to its small volume, it generally cannot be equipped with an automatic feed structure and requires manual operation. Currently, in the existing horizontal magnetic drill presses in the prior art, the feed is controlled by a handle operating rod. A lifting shaft for controlling the feed is provided on the horizontal magnetic drill press. The two ends of the lifting shaft are open and located on both sides of the horizontal magnetic drill press respectively. By connecting and cooperating the handle operating rod with the lifting shaft, the handle operating rod is rotated to drive the lifting shaft to rotate itself, thereby driving the drill bit to rise and fall.

[0004] However, it is found in the actual use process that the above-mentioned method of controlling the feed requires an operating space for installing the handle and rotating the handle on both sides of the horizontal magnetic drill press during drilling. When there are protruding structures on both sides of the workpiece, it will cause obstruction or limitation to the installation process and operation process of the handle. For example, when drilling the middle structure of an "H"-shaped workpiece, if the space between the structures on both sides of the opening of the "H"-shaped workpiece and the horizontal magnetic drill press is small, it will cause the handle operating rod to be unable to be smoothly installed with the lifting shaft or the operator cannot rotate the handle smoothly by hand, affecting the progress of the drilling work and reducing the practicality of the horizontal magnetic drill press.

[0005] Therefore, we make improvements in this regard and propose a mini horizontal magnetic drill press. Summary of the Invention

[0006] The purpose of the present invention is to address the problem that in the existing horizontal magnetic drill presses during drilling, an operating space for installing the handle and rotating the handle is required on both sides of the horizontal magnetic drill press. When there are protruding structures on both sides of the workpiece, it will cause obstruction or limitation to the installation process and operation process of the handle, resulting in the handle operating rod being unable to be smoothly installed with the lifting shaft or the operator being unable to rotate the handle smoothly by hand, affecting the progress of the drilling work and reducing the practicality of the horizontal magnetic drill press.

[0007] In order to achieve the above-mentioned invention purpose, the present invention provides the following mini horizontal magnetic drill press to improve the above problems.

[0008] The specific application is as follows:

[0009] The mini horizontal magnetic drill comprises a body, a control system and a motor installed on the side of the body, a magnetic base installed on the bottom of the body and electrically connected to the control system, and a drilling mechanism installed on the other side of the body, wherein the drilling mechanism comprises:

[0010] A main shaft is rotatably mounted in the end of the machine body, and the main shaft is driven by a motor through a transmission module;

[0011] A lifting sleeve is slidably mounted in the end of the machine body, and the lifting sleeve slides along the axial direction of the main shaft;

[0012] A drill seat is rotatably mounted on the bottom of the lifting sleeve, the drill seat is used to mount a drill bit for drilling holes, the top of the drill seat has a spline shaft, and the bottom of the main shaft has a spline sleeve adapted to be mounted on the spline shaft;

[0013] A lifting seat movably installed in the end of the machine body and located on one side of the lifting sleeve, the lifting seat is clamped with the opposite end of the lifting sleeve, and the lifting seat is driven to slide along the axial direction of the main shaft by a threaded rod installed on the machine body;

[0014] A first driven shaft is rotatably mounted in the middle of the machine body, a lifting gear is mounted in the middle of the first driven shaft, and a side portion of the lifting shaft sleeve has an arc-shaped gear set meshing with the lifting gear.

[0015] As a preferred technical solution of the present application, the body comprises:

[0016] A first housing, wherein the control system and the motor are integrated and installed in the first housing, and the bottom of the first housing has a stepped surface;

[0017] A second housing, wherein the bottom of one end of the second housing has a first protrusion matched with the step surface, the drilling mechanism is installed in the second housing, and the first protrusion has an axial hole through which the output shaft of the power supply machine passes;

[0018] The connecting part is arranged at the bottom of the first shell, and both sides of the top of the connecting part are provided with connecting plates covering the first shell and the second shell, and the magnetic base is fixedly installed at the bottom of the connecting part.

[0019] As a preferred technical solution of the present application, the top of the second shell has an installation cavity and a matching installation cover, and the transmission module includes a transmission shaft vertically installed on one side of the inside of the installation cavity, the bottom end of the transmission shaft is located at the first protrusion and is transmission-connected to the output end of the motor through the first gear set, and the top end of the transmission shaft is transmission-connected to the end of the main shaft through the second gear set installed in the installation cavity.

[0020] As a preferred technical solution of the present application, an adjustment cavity for installing a lifting bushing is further provided in the installation cavity. Both the upper and lower ends of the adjustment cavity are open. The middle part of the second housing has a tubular installation part for horizontally penetrating and installing the first driven shaft. Activity notches for communicating with the tubular installation part and for the linear reciprocating movement of the lifting seat are respectively provided on both sides of the adjustment cavity.

[0021] As a preferred technical solution of the present application, it further includes handles for respectively driving the first driven shaft and the threaded rod to rotate. First driven grooves adapted to be clamped with the handles are respectively provided at both ends of the first driven shaft. A second driven shaft is installed on the body at the top of the threaded rod. The top end of the second driven shaft protrudes from the second housing and is provided with a second driven groove adapted to be clamped with the handle.

[0022] As a preferred technical solution of the present application, the outer end of the second housing has a second convex part. An adjustment gear is installed on the second convex part through a limiting structure. The side wall of the lifting bushing has a vertical adjustment tooth group. The adjustment gear passes through the corresponding first connection notch and meshes with the adjustment tooth group, and the adjustment tooth group and the adjustment gear slide relatively in the vertical direction. Among them, one end of the arc tooth group at the top of the lifting bushing extends along the periphery of the lifting bushing to the lifting seat. The end of the lifting seat has a block matched with the inner tooth groove of the arc tooth group. The block slides relatively with the tooth groove of the arc tooth group. When the block is engaged with the tooth groove, the lifting gear is separated from the arc tooth group.

[0023] As a preferred technical solution of the present application, the bottom end of the adjustment gear has an adjustment shaft. The adjustment shaft is rotatably installed on the second convex part and the bottom end extends out of the second convex part. A third driven groove adapted to be clamped with the handle is provided at the bottom end of the adjustment shaft.

[0024] As a preferred technical solution of the present application, the limiting structure includes a threaded cylinder embedded in the side part of the second convex part and a threaded column threadedly matched with the threaded cylinder. One end of the threaded cylinder facing the adjustment shaft communicates with the shaft groove on the second convex part for the adjustment shaft to pass through. A pair of positioning holes corresponding to the rotation of the lifting bushing are provided on the adjustment shaft. One end of the threaded rod facing the adjustment shaft is adaptively inserted into the positioning hole.

[0025] As a preferred technical solution of the present application, there are two second convex parts which are arranged in parallel at the two ends corresponding to the activity notches. A connecting frame is adaptively installed between the two second convex parts. Both ends of the connecting frame have fixing plates corresponding to the second convex parts. The threaded rod is installed between the two fixing plates. The lifting seat is threadedly installed on the threaded rod and the end facing the connecting frame is slidably connected to the inner wall of the connecting frame. Connecting holes for connecting the second driven shaft and the threaded rod are respectively provided on the top fixing plate of the connecting frame and the corresponding second convex part.

[0026] As a preferred technical solution of the present application, the outer side of the top end of the second housing has a mounting notch for mounting the second driven shaft. The bottom end of the second driven shaft has a second spline shaft. A spline groove is correspondingly formed on the threaded rod. The second spline shaft passes through the connection hole and is inserted into the spline groove. The mounting cover has a limiting ring adapted to the top of the second driven shaft.

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0028] In the solution of the present application:

[0029] 1. By providing the threaded rod and the lifting seat, the lifting seat is clamped with the lifting shaft sleeve. By rotating the threaded rod forward and backward, the lifting seat can be driven to drive the lifting shaft sleeve and the drill bit seat to perform reciprocating linear motion, realizing the operation mode of controlling the feed by rotating on the horizontal plane. When the operation space on both sides of the horizontal magnetic drill is limited, the operation of drilling and feeding can be carried out smoothly.

[0030] 2. By providing the adjusting gear and the adjusting tooth group provided on the lifting shaft sleeve, the corresponding self-rotation of the lifting shaft sleeve can be driven by the adjusting gear, so as to control the arc-shaped tooth group on the lifting shaft sleeve to mesh with the lifting gear or engage with the block, thereby avoiding the problem of increasing the friction between them when driving the first driven rod or the threaded rod to rotate. The operation of lifting the lifting shaft sleeve is more labor-saving. At the same time, when the restriction on the adjusting gear is released, the adjusting gear plays a role in controlling the self-rotation of the lifting shaft sleeve. When the position of the adjusting gear is restricted and fixed, the relative sliding between the adjusting gear and the adjusting tooth group also plays a role in guiding the lifting shaft sleeve, ensuring the stability of the drilling work. The structure design is ingenious and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic structural diagram of the mini horizontal magnetic drill provided by the present application;

[0032] Figure 2 It is a schematic structural diagram of the bottom of the first housing and the second housing of the mini horizontal magnetic drill provided by the present application;

[0033] Figure 3 It is a schematic structural diagram of the second housing of the mini horizontal magnetic drill provided by the present application;

[0034] Figure 4 It is a schematic structural diagram of the connecting frame of the mini horizontal magnetic drill provided by the present application;

[0035] Figure 5 It is a schematic structural diagram of the drilling mechanism of the mini horizontal magnetic drill provided by the present application;

[0036] Figure 6Schematic diagram of the lifting bushing of the mini horizontal magnetic drill provided by this application;

[0037] Figure 7 Schematic diagram of the state between the arc tooth set, the lifting gear and the clamping block of the mini horizontal magnetic drill provided by this application.

[0038] Labels in the figure:

[0039] 1. Machine body; 101. First housing; 1011. Step surface; 102. Second housing; 1021. First protrusion; 1022. Installation cavity; 1023. Adjustment cavity; 1024. Tubular installation part; 1025. Movable notch; 1026. Second protrusion; 1027. Installation notch; 103. Connection part; 1031. Connection plate; 2. Control system; 3. Motor; 4. Magnetic base; 5. Main shaft; 6. Lifting bushing; 601. Arc tooth set; 602. Adjustment tooth set; 7. Drill bit holder; 8. First spline shaft; 9. Spline sleeve; 10. Lifting seat; 1001. Clamping block; 11. Threaded rod; 1101. Spline groove; 12. First driven shaft; 1201. First driven groove; 13. Lifting gear; 14. Transmission shaft; 15. First gear set; 16. Second gear set; 17. Handle; 18. Second driven shaft; 1801. Second driven groove; 1802. Second spline shaft; 19. Adjusting gear; 1901. Adjusting shaft; 1902. Third driven groove; 1903. Positioning hole; 20. Threaded cylinder; 2001. Threaded column; 21. Connecting frame. Detailed implementation manners

[0040] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0041] The present invention will be further described below in conjunction with the embodiments.

[0042] Embodiment 1: Refer to Figures 1 to 6 , the mini horizontal magnetic drill includes a machine body 1, a control system 2 and a motor 3 installed on the side of the machine body 1, a magnetic base 4 installed at the bottom of the machine body 1 and electrically connected to the control system 2, and a drilling mechanism installed on the other side of the machine body 1. A control panel is also provided at the end of the machine body 1 for controlling the operation of related electrical components such as the magnetic base 4 and the motor 3. The above are some relatively mature technical means in the existing horizontal magnetic drill, which will not be elaborated here;

[0043] This application mainly solves the problem in the prior art that when a horizontal magnetic base drill is drilling, an operating space for installing the handle 17 and rotating the handle 17 needs to be left on both sides of the horizontal magnetic base drill. When there are protruding structures on both sides of the workpiece, it will cause the operating rod of the handle 17 to be unable to be smoothly installed with the lifting shaft or the operator to be unable to rotate the handle 17 smoothly by hand, affecting the progress of the drilling work and reducing the practicality of the horizontal magnetic base drill. Therefore, the drilling mechanism of the horizontal magnetic base drill is improved. The specific drilling mechanism includes:

[0044] A main shaft 5 rotatably installed inside the end of the machine body 1, the main shaft 5 is driven by a transmission module and a motor 3, a lifting shaft sleeve 6 slidably installed inside the end of the machine body 1, the lifting shaft sleeve 6 slides along the axial direction of the main shaft 5, a drill bit holder 7 rotatably installed at the bottom of the lifting shaft sleeve 6, the drill bit holder 7 is used to install a drill bit for drilling, the top of the drill bit holder 7 has a spline shaft, and the bottom of the main shaft 5 has a spline sleeve 9 adapted to be installed with the spline shaft. By driving the main shaft 5 to rotate by itself with the motor 3, using the matching relationship between the spline shaft and the spline sleeve 9, the main shaft 5 can drive the drill bit holder 7 to rotate by itself, and the drill bit holder 7 can be driven to lift by the lifting shaft sleeve 6;

[0045] It also includes a lifting seat 10 movably installed inside the end of the machine body 1 and located on one side of the lifting shaft sleeve 6, the opposite end of the lifting seat 10 is clamped with the lifting shaft sleeve 6, the lifting seat 10 is driven by a threaded rod 11 installed on the machine body 1 to slide along the axial direction of the main shaft 5, and a first driven shaft 12 rotatably installed in the middle of the machine body 1, a lifting gear 13 is installed in the middle of the first driven shaft 12, and an arc-shaped tooth group 601 meshing with the lifting gear 13 is provided on the side of the lifting shaft sleeve 6;

[0046] By setting the first driven shaft 12, the lifting gear 13 and the arc-shaped tooth group 601 on the side of the lifting shaft sleeve 6, the lifting shaft sleeve 6 can be driven to drive the drill bit holder 7 to descend and ascend correspondingly by driving the first driven shaft 12 to rotate forward and backward, realizing an operation mode of controlling the feed by rotating operation in the vertical plane; by setting the threaded rod 11 and the lifting seat 10, the lifting seat 10 is clamped with the lifting shaft sleeve 6, and by rotating the threaded rod 11 forward and backward, the lifting seat 10 can be driven to drive the lifting shaft sleeve 6 to make a reciprocating linear motion on the threaded rod 11, and then the lifting shaft sleeve 6 can be controlled to drive the drill bit holder 7 to descend and ascend correspondingly, realizing an operation mode of controlling the feed by rotating operation in the horizontal plane; through the combination of the above structures, when drilling a workpiece, the corresponding operation mode can be flexibly selected, improving the operation range of the horizontal magnetic base drill and avoiding the situation where the drilling work cannot be carried out smoothly when the side operation space of the horizontal magnetic base drill is limited;

[0047] It should be noted that for the two structures provided above for controlling the lifting of the lifting shaft sleeve 6 (i.e., the drill bit holder 7), during actual operation, only one set of structures needs to be controlled to drive the lifting of the lifting shaft sleeve 6, and the other set of structures will not restrict the operation of this set of structures. For example, during the process of driving the first driven shaft 12 to rotate self - sufficiently, through the cooperation relationship between the lifting gear 13 and the arc - shaped tooth group 601, the lifting shaft sleeve 6 is driven to lift. Since the lifting shaft sleeve 6 is clamped with the lifting seat 10 and the threaded rod 11 is not used, the lifting seat 10 will drive the threaded rod 11 to rotate self - sufficiently as the lifting shaft sleeve 6 lifts or lowers, enabling the feed operation to proceed smoothly. Similarly, driving the threaded rod 11 to rotate self - sufficiently will drive the first driven shaft 12 to rotate self - sufficiently.

[0048] Furthermore, referring to Figures 1 to 3 , the machine body 1 includes a first housing 101, the control system 2 and the motor 3 are both integrally installed inside the first housing 101, and the bottom of the first housing 101 has a stepped surface 1011; and a second housing 102, the bottom of one end of the second housing 102 has a first protrusion 1021 adapted to the stepped surface 1011, the drilling mechanism is installed inside the second housing 102, and the first protrusion 1021 has a shaft hole for the output shaft of the motor 3 to pass through; and a connecting part 103, arranged at the bottom of the first housing 101, both sides of the top end of the connecting part 103 have connecting plates 1031 covering the first housing 101 and the second housing 102, and the magnetic base 4 is fixedly installed at the bottom of the connecting part 103. The connections between the above - mentioned first housing 101, second housing 102 and connecting part 103, etc. are all detachably installed through fasteners (bolts). Correspondingly, corresponding holes (not labeled in the figure) are opened at the corresponding connection positions between the first housing 101, second housing 102 and connecting part 103; through the cooperation of the above - mentioned structures, the horizontal magnetic base drill is modularly designed, facilitating centralized wiring production during assembly and convenient disassembly and replacement of damaged structures.

[0049] Furthermore, referring to Figures 1 to 3 , the top of the second housing 102 has an installation cavity 1022 and a matching installation cover. The transmission module includes a transmission shaft 14 vertically installed on one side inside the installation cavity 1022. The bottom end of the transmission shaft 14 is located at the first protrusion 1021 and is in transmission connection with the output end of the motor 3 through a first gear set 15. The top end of the transmission shaft 14 is in transmission connection with the end of the main shaft 5 through a second gear set 16 installed in the installation cavity 1022. Preferably, the motor 3 is vertically installed inside the first housing 101, and the output shaft of the motor 3 transmits power to the main shaft 5 through the transmission of the first gear set 15, transmission shaft 14, and second gear set 16, thereby reducing the overall height of the horizontal magnetic base drill. The structure is short and compact, reducing the limitation that it cannot be operated due to the narrow working area space.

[0050] Furthermore, referring to Figures 1 to 3, the installation cavity 1022 also has an adjustment cavity 1023 for installing the lifting bushing 6. Both the upper and lower ends of the adjustment cavity 1023 are open. The middle part of the second housing 102 has a tubular installation part 1024 for the first driven shaft 12 to horizontally penetrate and install. On both sides of the adjustment cavity 1023, there are respectively provided an activity notch 1025 communicating with the tubular installation part 1024 and for the lifting seat 10 to linearly reciprocate. Through the setting of the above structure, it is convenient to install each structure. Specifically, during installation, structures such as the main shaft 5, the lifting bushing 6, and the drill bit seat 7 can be vertically placed in the adjustment cavity 1023 first, and then the first driven shaft 12 is horizontally inserted into the tubular installation part 1024, so that the lifting gear 13 on the first driven shaft 12 is horizontally inserted into the arc-shaped tooth group 601 and meshed with it to realize the limit of the lifting bushing 6. It should be noted that the above provided is only a general installation process. Specifically, during installation, if the first driven shaft 12 needs to be fixed in the tubular installation part 1024 through a bearing to ensure the stability of its self-rotation and other installation operations are existing mature technical means, which will not be specifically introduced here.

[0051] Further, referring to Figures 1 to 2 , it also includes a handle 17 for respectively driving the first driven shaft 12 and the threaded rod 11 to rotate. The two ends of the first driven shaft 12 are respectively provided with a first driven slot 1201 adapted to be clamped with the handle 17. On the body 1, a second driven shaft 18 is installed at the top of the threaded rod 11. The top end of the second driven shaft 18 protrudes from the second housing 102 and is provided with a second driven slot 1801 adapted to be clamped with the handle 17. The end of the handle 17 has an insertion block adapted to the first driven slot 1201 and the second driven slot 1801. Through the insertion and cooperation of the insertion block with the first driven slot 1201 or the second driven slot 1801, and then rotating the handle 17, the lifting process of the lifting bushing 6 can be correspondingly driven.

[0052] Embodiment 2: Referring to Figures 1 to 7 , this embodiment is a further optimization of Embodiment 1, providing a solution to the problem that when the lifting bushing 6 drives the drill bit seat 7 to lift in Embodiment 1, the first driven rod and the threaded rod 11 will rotate synchronously, resulting in a large frictional force and thus a large force required to rotate the handle 17.

[0053] Specifically, the outer end of the second housing 102 has a second convex portion 1026. An adjusting gear 19 is installed on the second convex portion 1026 through a limiting structure. The side wall of the lifting shaft sleeve 6 has a vertical adjusting tooth set 602. The adjusting gear 19 passes through the corresponding first connection notch and meshes with the adjusting tooth set 602, and the adjusting tooth set 602 and the adjusting gear 19 slide relative to each other in the vertical direction. Among them, one end of the arc tooth set 601 at the top of the lifting shaft sleeve 6 extends along the periphery of the lifting shaft sleeve 6 to the lifting seat 10. The end of the lifting seat 10 has a clamping block 1001 that cooperates with the inner tooth groove of the arc tooth set 601. The clamping block 1001 slides relative to the tooth groove of the arc tooth set 601. When the clamping block 1001 engages with the tooth groove, the lifting gear 13 is separated from the arc tooth set 601;

[0054] Among them, both the lifting gear 13 and the adjusting gear 19 are spur gears. By driving the adjusting gear 19 to rotate self - driven, the lifting shaft sleeve 6 is driven to rotate self - driven. When the arc tooth set 601 engages with the clamping block 1001, the teeth on the lifting gear 13 will be separated from the arc tooth set 601 in the horizontal direction. Furthermore, when driving the threaded rod 11 to rotate self - driven and driving the lifting shaft sleeve 6 to lift through the clamping block 1001, the arc tooth set 601 is not hindered by the lifting gear 13. Correspondingly, it is no longer affected by the frictional force of the first transmission shaft 14 rotating self - driven. On the contrary, when the lifting gear 13 meshes with the arc tooth set 601, the clamping block 1001 is separated from the arc tooth set 601 (as shown in Figure 7 ). Then, when driving the first transmission shaft 14 to rotate self - driven, the clamping block 1001 is not affected by the lifting shaft sleeve 6, so that in this way of operating the feed, it is not affected by the frictional force of the threaded rod 11 rotating self - driven. Through the cooperation of the above - mentioned structure, the method of operating the lifting shaft sleeve 6 to lift is more labor - saving, further improving the practicability of the drill; it can be understood that the cooperation between the clamping block 1001 and the lifting gear 13 and the arc tooth set 601 can be switched at a fixed position to ensure the smooth self - rotation of the lifting shaft sleeve 6. At the same time, the clamping block 1001 and the lifting gear 13 always have one connected and cooperating with the arc tooth set 601 to ensure the stability of the lifting shaft sleeve 6;

[0055] Furthermore, through the above - set adjusting gear 19 and adjusting tooth set 602, from the installation method between the spur gear and the adjusting tooth set 602, it can be known that the teeth between the adjusting gear 19 and the adjusting tooth set 602 can slide relative to each other. Therefore, in the limited position state, the fixed adjusting gear 19 will play a guiding role for the adjusting tooth set 602, that is, to ensure the stability of the lifting shaft sleeve 6 when lifting.

[0056] Furthermore, as shown in Figure 2 and Figure 5As shown in the figure, the bottom end of the adjusting gear 19 has an adjusting shaft 1901. The adjusting shaft 1901 is rotatably installed on the second protruding part 1026 and its bottom end extends out of the second protruding part 1026. A third driven groove 1902 adapted to be clamped with the handle 17 is provided at the bottom end of the adjusting shaft 1901. By providing the adjusting shaft 1901, the self-adhesive corresponding to the adjusting gear 19 can be driven by the handle 17, so as to adjust the matching relationship between the arc-shaped tooth group 601 and the lifting gear 13 or the clamping block 1001. At the same time, the third driven groove 1902 is located at the bottom of one end of the second housing 102, reducing the probability of accidental touch and further improving the practicability of the device; wherein, the limiting structure includes a threaded cylinder 20 embedded in the side part of the second protruding part 1026 and a threaded column 2001 threadedly engaged with the threaded cylinder 20. One end of the threaded cylinder 20 facing the adjusting shaft 1901 communicates with the shaft groove on the second protruding part 1026 for the adjusting shaft 1901 to pass through. A pair of positioning holes 1903 corresponding to the rotation of the lifting shaft sleeve 6 are provided on the adjusting shaft 1901. One end of the threaded rod 11 facing the adjusting shaft 1901 is adaptively inserted into the positioning holes 1903. Through the insertion relationship between the threaded rod 11 and the adjusting shaft 1901, the purpose of fixing the adjusting gear 19 is achieved, making the guiding of the lifting shaft sleeve 6 more stable and ensuring the smooth progress of the drilling work.

[0057] Further, as Figure 3 and Figure 5 shown in the figure, there are two second protruding parts 1026, which are arranged in parallel at two ends of the corresponding movable slot 1025. A connecting frame 21 is adaptively installed between the two second protruding parts 1026. Both ends of the connecting frame 21 have fixing plates corresponding to the second protruding parts 1026. The threaded rod 11 is installed between the two fixing plates. The lifting seat 10 is threadedly installed on the threaded rod 11 and one end facing the connecting frame 21 is slidably connected to the inner wall of the connecting frame 21. Connecting holes for connecting the second driven shaft 18 and the threaded rod 11 are provided on the top fixing plate of the connecting frame 21 and the corresponding second protruding part 1026. By providing the connecting frame 21, the threaded rod 11 is arranged on the connecting frame 21 and can be directly installed between the two second protruding parts 1026, making the installation and matching process between the adjusting gear 19 and the adjusting tooth group 602 and the installation and matching process between the clamping block 1001 and the arc-shaped tooth group 601 more convenient;

[0058] Among them, the outer side of the top end of the second housing 102 has a mounting notch 1027 for mounting the second driven shaft 18. The bottom end of the second driven shaft 18 has a second spline shaft 1802. A spline groove 1101 is correspondingly formed on the threaded rod 11. The second spline shaft 1802 passes through the connection hole and is inserted into the spline groove 1101. The mounting cover has a limiting ring adapted to the top of the second driven shaft 18. By inserting the second driven shaft 18 into the threaded rod 11, the connecting frame 21 can be mounted between the two second protruding portions 1026. At the same time, the handle 17 can drive the second driven shaft 18 and the threaded rod 11 to rotate, so as to achieve the purpose of controlling the lifting bushing 6.

[0059] In the present invention, unless otherwise clearly defined and limited, the terms "mounting", "connecting", "coupling", "fixing", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral body; it may be a mechanical connection, an electrical connection, or communication with each other; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0060] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. The preferred embodiments of the present invention are shown in the drawings, but do not limit the patent scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing specific embodiments, or equivalently replace some of the technical features. Any equivalent structure directly or indirectly using the content of the specification and drawings of the present invention in other related technical fields is equally within the scope of the patent protection of the present invention.

Claims

1. A mini horizontal magnetic drill, comprising a body (1), a control system (2) and a motor (3) mounted on the side of the body (1), a magnetic base (4) mounted on the bottom of the body (1) and electrically connected to the control system (2), and a drilling mechanism mounted on the other side of the body (1), characterized in that: The drilling mechanism comprises: A main shaft (5) rotatably mounted in the end of the machine body (1), wherein the main shaft (5) is driven by the motor (3) through a transmission module; A lifting sleeve (6) is slidably mounted in the end of the machine body (1), and the lifting sleeve (6) slides along the axial direction of the main shaft (5); A drill seat (7) is rotatably mounted on the bottom of the lifting sleeve (6), the drill seat (7) being used to mount a drill bit for drilling holes, the top of the drill seat (7) being provided with a spline shaft, and the bottom of the main shaft (5) being provided with a spline sleeve (9) adapted to be mounted on the spline shaft; A lifting seat (10) movably mounted in the end of the machine body (1) and located on one side of the lifting sleeve (6), the lifting seat (10) being clamped with the opposite end of the lifting sleeve (6), and the lifting seat (10) being driven to slide along the axial direction of the main shaft (5) by a threaded rod (11) mounted on the machine body (1); A first driven shaft (12) is rotatably mounted in the middle of the machine body (1), a lifting gear (13) is mounted in the middle of the first driven shaft (12), and a side portion of the lifting shaft sleeve (6) has an arc-shaped tooth group (601) meshing with the lifting gear (13).

2. The mini horizontal magnetic drill according to claim 1, characterized in that: The body (1) comprises: A first housing (101), wherein the control system (2) and the motor (3) are both integrated and installed in the first housing (101), and the bottom of the first housing (101) has a stepped surface (1011); A second shell (102), wherein the bottom of one end of the second shell (102) has a first protrusion (1021) adapted to the step surface (1011), the drilling mechanism is installed in the second shell (102), and the first protrusion (1021) has an axial hole through which the output shaft of the power supply machine (3) passes; The connecting portion (103) is arranged at the bottom of the first shell (101), and both sides of the top of the connecting portion (103) have connecting plates (1031) covering the first shell (101) and the second shell (102), and the magnetic base (4) is fixedly mounted on the bottom of the connecting portion (103).

3. The mini horizontal magnetic drill according to claim 2, characterized in that: The top of the second housing (102) has a mounting cavity (1022) and a mounting cover adapted thereto, the transmission module comprises a transmission shaft (14) vertically mounted on one side of the interior of the mounting cavity (1022), the bottom end of the transmission shaft (14) is located at the first protruding portion (1021) and is transmission-connected to the output end of the motor (3) via a first gear set (15), and the top end of the transmission shaft (14) is transmission-connected to the end of the main shaft (5) via a second gear set (16) mounted in the mounting cavity (1022).

4. The mini horizontal magnetic drill according to claim 3, characterized in that: The installation cavity (1022) also has an adjustment cavity (1023) for installing the lifting sleeve (6), the upper and lower ends of the adjustment cavity (1023) are both open, the middle part of the second shell (102) has a tubular installation portion (1024) for the first driven shaft (12) to pass through horizontally for installation, and the two sides of the adjustment cavity (1023) are respectively provided with movable notches (1025) that are connected to the tubular installation portion (1024) and provide linear reciprocating motion for the lifting seat (10).

5. The mini horizontal magnetic drill according to claim 4, characterized in that: The machine body (1) further comprises a handle (17) for driving the first driven shaft (12) and the threaded rod (11) to rotate respectively, and first driven grooves (1201) adapted to engage with the handle (17) are respectively provided at both ends of the first driven shaft (12), and a second driven shaft (18) is mounted on the machine body (1) at the top of the threaded rod (11), and the top end of the second driven shaft (18) protrudes from the second housing (102) and is provided with a second driven groove (1801) adapted to engage with the handle (17).

6. The mini horizontal magnetic drill according to claim 5, characterized in that: The outer end of the second shell (102) has a second protrusion (1026), an adjusting gear (19) is mounted on the second protrusion (1026) via a limiting structure, the side wall of the lifting sleeve (6) has a vertical adjusting tooth group (602), the adjusting gear (19) passes through the corresponding first connecting notch and meshes with the adjusting tooth group (602), and the adjusting tooth group (602) and the adjusting gear (19) slide relative to each other in the vertical direction, wherein: One end of the arc-shaped tooth set (601) located at the top of the lifting sleeve (6) extends along the periphery of the lifting sleeve (6) to the lifting seat (10), and the end of the lifting seat (10) has a clamping block (1001) that matches the tooth groove inside the arc-shaped tooth set (601). The clamping block (1001) slides relative to the tooth groove of the arc-shaped tooth set (601). When the clamping block (1001) is engaged with the tooth groove, the lifting gear (13) is separated from the arc-shaped tooth set (601).

7. The mini horizontal magnetic drill according to claim 6, characterized in that: The bottom end of the adjusting gear (19) has an adjusting shaft (1901), the adjusting shaft (1901) is rotatably mounted on the second protruding portion (1026) and the bottom end extends out of the second protruding portion (1026), and the bottom end of the adjusting shaft (1901) is provided with a third driven groove (1902) adapted to be engaged with the handle (17).

8. The mini horizontal magnetic drill according to claim 7, characterized in that: The limiting structure comprises a threaded barrel (20) embedded in the side of the second protruding portion (1026) and a threaded column (2001) threadedly engaged with the threaded barrel (20); one end of the threaded barrel (20) facing the adjusting shaft (1901) is connected to a shaft groove on the second protruding portion (1026) for the adjusting shaft (1901) to pass through; a pair of positioning holes (1903) corresponding to the rotation of the lifting sleeve (6) are provided on the adjusting shaft (1901); and one end of the threaded rod (11) facing the adjusting shaft (1901) is adapted to be plugged into the positioning holes (1903).

9. The mini horizontal magnetic drill according to claim 8, characterized in that: The second protrusion (1026) has two ends which are arranged in parallel with the corresponding movable notches (1025); a connecting frame (21) is adapted to be installed between the two second protrusions (1026); both ends of the connecting frame (21) have fixing plates corresponding to the second protrusions (1026); the threaded rod (11) is installed between the two fixing plates; the lifting seat (10) is threadedly installed on the threaded rod (11) and is slidably connected to the inner wall of the connecting frame (21) at one end facing the connecting frame (21); and connecting holes for connecting the second driven shaft (18) to the threaded rod (11) are provided on the top fixing plate of the connecting frame (21) and the corresponding second protrusion (1026).

10. The mini horizontal magnetic drill according to claim 9, characterized in that: The outer side of the top end of the second housing (102) has a mounting notch (1027) for mounting the second driven shaft (18), the bottom end of the second driven shaft (18) has a second spline shaft (1802), a spline groove (1101) is correspondingly provided on the threaded rod (11), the second spline shaft (1802) passes through the connecting hole and is inserted into the spline groove (1101), and the mounting cover has a limiting ring adapted to the top of the second driven shaft (18).

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