Magnetic drill press capable of rotating at multiple angles

Abstract

The invention discloses a multi-angle rotary type magnetic drill press. The multi-angle rotary type magnetic drill press comprises a magnetic seat and a pushing frame connected with the magnetic seat through a supporting arm. A drill body is arranged at one end of the pushing frame, and the drill body is driven by the pushing frame to do directional movement in a horizontal state and complete drilling; a linkage assembly is arranged at one end of the supporting arm and is in transmission connection with the locking assembly and the limiting assembly. According to the drilling device, the transmission assembly is driven by the driving assembly to drive the sliding ring fixedly connected with the movable rod to move, so that the locking strip fixedly connected with the movable ring is separated from the limiting rack, the angle of the drill body is conveniently adjusted through the pushing frame, and the adjusting piece drives the movable built-in frame located in the U-shaped frame to move; and a limiting strip fixedly connected in the built-in frame drives a movable ring fixedly connected with a movable rod to rotate along the axis of a connecting shaft, so that a locking strip and a limiting gear ring are staggered and separated after interference, the locking stability and convenience of the pushing frame are improved conveniently, and meanwhile, the high precision of angle adjustment of the drill body is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of magnetic drill presses, and in particular to a multi-angle rotatable magnetic drill press. Background Art

[0002] A magnetic drill, also known as a magnetic base drill and a magnet drill, generates a magnetic field at the bottom of the magnetic drill after being powered on by a changing current, adsorbs on a steel structure, and then the motor of the magnetic drill rotates at a high speed to drive the drill bit to drill the steel structure.

[0003] For example, in the patent with the publication number CN110548888A, titled "A New Type of Multi-Angle Rotatable Magnetic Drill Press", and the authorization announcement date of December 10, 2019, it includes a movable box. Wheels are fixedly installed around the bottom of the movable box. A push handle is fixedly installed at the top of the left side of the movable box. A first servo motor is fixedly installed at the bottom of the inner cavity of the movable box. A threaded rod is fixedly installed on the output shaft of the first servo motor. A first bearing seat is fixedly installed at the top of the threaded rod. The top of the first bearing seat is fixedly connected to the top of the inner cavity of the movable box. A slider is threadedly connected to the outer surface of the top of the threaded rod. A support rod is fixedly connected to the left side of the slider; for this new type of multi-angle rotatable magnetic drill press, by adjusting the horizontal and vertical angles of the magnetic drill bit, multi-angle adjustment of the magnetic drill bit is achieved, the drilling efficiency is accelerated, at the same time, inclined hole machining of workpieces can be performed, and the utilization rate of this magnetic drill press is improved, which is convenient to use and applicable to various situations.

[0004] The deficiencies of the prior art are that since the rotatable joints use a gear structure lock or a bolt rotation method to adjust the angle of the magnetic drill press, but for improving the stability of the magnetic drill press during use, the gear lock is relatively stable, there is an interference phenomenon with the gears, so the two gears need to be misaligned and locked separately, resulting in a position offset of the drill body at the set angle. Summary of the Invention

[0005] The purpose of the present invention is to provide a multi-angle rotatable magnetic drill press. Through the driving component driven by the driving component, the sliding ring fixed to the movable rod is driven to move, so that the locking strip fixed to the movable ring is separated from the limit rack, facilitating the push frame to adjust the angle of the drill body. The adjusting part drives the movable built-in frame located in the U-shaped frame to move. The limit strip fixed in the built-in frame drives the movable ring fixed to the movable rod to rotate along the axis of the connecting shaft, so as to realize the misalignment and separation after the locking strip interferes with the limit tooth ring, facilitating to improve the locking stability and convenience of the push frame, and at the same time improving the high precision of the drill body angle adjustment.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a multi-angle rotatable magnetic drill, comprising a magnetic base and a pushing frame connected by a support arm; a drill body is provided at one end of the pushing frame, and the drill body is driven by the pushing frame to move in a horizontal direction and complete the drilling; a linkage assembly is provided at one end of the support arm, and the linkage assembly is respectively connected to the locking assembly and the limiting assembly, and the locking assembly comprises a U-shaped frame, a connecting shaft for connecting the pushing frame is provided through the U-shaped frame, and a limiting tooth ring is symmetrically fixed on the outside of the connecting shaft, and a locking member for locking is provided between the two limiting tooth rings, and the locking member comprises a movable ring for sliding connection with the connecting shaft, and one end of the movable ring is fixed The cam is provided with a locking bar, and a supporting spring for supporting the locking bar and the limiting toothed ring to be locked is provided between the two movable rings. A movable rod is fixedly connected to the outer ring surface of the movable ring, and both ends of the movable rod are limited to the built-in frame by limiting bars; one end of the built-in frame is provided with a transmission assembly, and the transmission assembly is transmission-connected to the driving assembly, and the movable rod is transmission-connected to the driving assembly so that the movable rod drives the locking bar fixed to the movable ring along the limiting bar to separate from the limiting toothed ring, so as to realize the angle adjustment of the drill body fixed to the pushing frame; it also includes an adjusting member, the adjusting member is transmission-connected to the limiting bar, and the limiting bar drives the built-in frame to move slightly along the axis of the connecting shaft through the adjusting member to avoid interference between the limiting toothed ring and the locking bar; As a further description of the above technical solution: The two ends of the connecting shaft are symmetrically fixed with support plates, and a slide is fixedly connected through the support plates. The end of the slide close to the support plate is fixedly connected to a handle rod. A slider is provided in the slide for sliding. The drill body is fixed to the slider and the drill body is pushed along the slide in a direction by rotating the handle.

[0007] As a further description of the above technical solution: An arc-shaped seat is fixed in the limiting strip, and a sphere is movably provided in the two arc-shaped seats. A sliding rod is fixed to one end of the sphere, and a connecting rod is connected through the sliding rod. The connecting rod drives the limiting strip fixed on the built-in frame to move along the groove opened in the U-shaped frame through a nut rod threaded at the top.

[0008] As a further description of the above technical solution: The top of the support arm is fixedly connected to an armrest, a handle bar is slidably provided in the armrest, a pull rope bar is provided on the handle bar, one end of the pull rope bar is fixedly connected to a rack, and the rack is meshed with the gear shaft, and the other end of the pull rope bar is fixedly connected to a connecting bar.

[0009] As a further description of the above technical solution: The movable rod is provided with a support arm at one end away from the movable ring, and the two support arms are provided with a pillar at one end away from the movable rod. A sliding bar is fixedly connected to one end of the pillar, and directional rods are symmetrically provided at both ends of the two sliding bars. A directional bar is fixedly connected to one end of the directional rod, and the directional bar is fixed to the built-in frame through a horizontal arm.

[0010] As a further description of the above technical solution: A gear shaft is rotatably provided at one end of the built-in frame, one end of the gear shaft is fixedly connected to a limiting wheel, a cam is fixedly connected to one end of the limiting wheel, and the cam is arranged between two sliding bars, and the sliding bars are separated to both ends by rotating the cam.

[0011] As a further description of the above technical solution: The limiting assembly includes a rotating shaft rod, the top end of the rotating shaft rod is fixedly connected to a connecting strip, the bottom end of the rotating shaft rod is fixedly connected to a fixing strip, and the bottom end of the fixing strip is symmetrically fixedly connected to a limiting column.

[0012] As a further description of the above technical solution: The bottom end of the support arm is fixed with a sleeve, and the sleeve is provided with an orientation groove, which is used to limit the movement trajectory of the connecting bar. A locking block is rotated at the bottom end of the sleeve, and the locking block is fixed on the magnetic base and adapted to the limiting column.

[0013] The present invention provides a multi-angle rotatable magnetic drill, which has the following beneficial effects: In the present invention, the transmission component drives the sliding ring fixed to the movable rod to move under the drive of the driving component, so that the locking bar fixed to the movable ring is separated from the limiting rack, which is convenient for the pushing rack to adjust the angle of the drill body. The adjusting member drives the movable built-in frame located in the U-shaped frame to move, and the limiting bar fixed in the built-in frame drives the movable ring fixed to the movable rod to rotate along the axis of the connecting shaft, so as to realize the dislocation and separation of the locking bar and the limiting tooth ring after interference, which is convenient for improving the locking stability and convenience of the pushing rack, and at the same time improving the high precision of the drill body angle adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic structural diagram of a multi-angle rotatable magnetic drill proposed by the present invention; Figure 2 Schematic diagram of the structure of the locking assembly of the present invention; Figure 3 It is a structural schematic diagram of the pushing rack in the present invention; Figure 4 Schematic diagram of the structure of the linkage assembly in the present invention; Figure 5 For the present invention Figure 4 Schematic diagram of the local structure at A in the middle; Figure 6 This is a schematic structural diagram of the built-in frame in the present invention; Figure 7 Schematic diagram of the structure of the locking member in the present invention; Figure 8 Schematic diagram of the structure of the drive assembly in the present invention; Figure 9Schematic diagram of the nut rod structure in the present invention; Figure 10 In the present invention Figure 9 Partial structural schematic diagram at position B; Figure 11 Schematic diagram of the structure of the transmission component in the present invention.

[0015] Legend: 1. Magnetic base; 2. Support arm; 21. Armrest; 22. Sleeve; 23. Locking block; 3. Linkage component; 31. Pulling bar; 32. Pulling rope bar; 33. Rack; 4. Limiting component; 41. Rotating shaft rod; 42. Connecting bar; 43. Fixed bar; 44. Limiting column; 5. Locking component; 51. U-shaped frame; 511. Groove; 52. Locking piece; 521. Movable ring; 522. Locking bar; 523. Support spring; 524. Movable rod; 53. Built-in frame; 54. Driving component; 541. Directional bar; 542. Directional rod; 543. Sliding bar; 544. Support pillar; 545. Support arm; 55. Transmission component; 551. Gear shaft; 552. Limiting wheel; 553. Cam; 56. Adjusting piece; 561. Nut rod; 562. Connecting rod; 563. Slide bar; 564. Sphere; 565. Arc seat; 57. Limiting bar; 6. Pushing frame; 61. Slide seat; 62. Slide block; 63. Rotating handle; 64. Support plate; 65. Connecting shaft; 66. Limiting tooth ring; 67. Handle rod; 7. Drill body. Detailed implementation manners

[0016] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described 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.

[0017] Refer to Figure 1-11A multi-angle rotatable magnetic drill comprises a magnetic base 1 and a push rack 6 connected to a support arm 2; a drill body 7 is provided at one end of the push rack 6, which drives the drill body 7 to move in a horizontal direction and complete the drilling; a linkage assembly 3 is provided at one end of the support arm 2, and the linkage assembly 3 is respectively connected to the locking assembly 5 and the limiting assembly 4 in a transmission manner. The locking assembly 5 comprises a U-shaped frame 51, and a connecting shaft 65 for connecting to the pushing rack 6 is provided through the U-shaped frame 51. A limiting tooth ring 66 is symmetrically fixed to the outside of the connecting shaft 65. A locking member 52 for locking is provided between the two limiting tooth rings 66. The locking member 52 comprises a movable ring 521 for sliding connection with the connecting shaft 65. A locking strip 522 is fixedly connected to one end of the movable ring 521. A support spring 523 is provided between the two movable rings 521 to support the locking strip 522 and the limiting toothed ring 66. A movable rod 524 is fixedly connected to the outer ring surface of the movable ring 521. Both ends of the movable rod 524 are limited on the built-in frame 53 by limiting strips 57. A transmission assembly 55 is provided at one end of the built-in frame 53. The transmission assembly 55 is transmission-connected to the driving assembly 54. The driving assembly 54 is transmission-connected to the movable rod 524, so that the movable rod 524 drives the locking strip 522 fixed to the movable ring 521 along the limiting strip 57 to separate from the limiting toothed ring 66, so as to realize the angle adjustment of the drill body 7 fixed to the pushing frame 6. The inner frame 53 is driven by the adjusting member 56 and the limiting bar is driven by the adjusting member 56 to move slightly along the axis of the connecting shaft 65 to avoid interference between the limiting tooth ring 66 and the locking bar 522. Specifically, the magnetic base 1 is a rectangular structure. By supplying power to the magnetic base 1, the magnetic base 1 is adsorbed and fixed on the metal plate. The magnetic base 1 is connected to the push rack 6 through the support arm 2. The push rack 6 is used for the directional movement of the fixed drill body 7. The linkage assembly 3 provided in the support arm 2 respectively transmits the locking assembly 5 and the limit assembly 4, so that the drill body 7 can be adjusted in angle. Among them, the U-shaped frame 51 in the locking assembly 5 sleeves the connecting shaft 65 in the push rack 6. The connecting shaft 65 passes through the U-shaped frame 51 and is rotatably arranged in the U-shaped frame 51. The limiting tooth ring 66 is symmetrically fixed on the connecting shaft 65. The two limiting tooth rings 66 are fixed to the connecting shaft 65. 6 is aligned with the center point of the connecting shaft 65 and an inclined surface is provided. The two locking members 52 are slidably provided on the two locking members to act on the limiting toothed ring 66 for locking. The movable ring 521 included in the locking member 52 is sleeved and slidably provided on the connecting shaft 65. The locking strip 522 fixed at one end of the movable ring 521 is adapted to the limiting toothed ring 66 with the inclined surface. The locking strip 522 is adapted to the limiting toothed ring 66 with the supporting spring 523 fixed between the two movable rings 521 to lock the pushing frame 6 on the supporting arm 2 with a structure that can rotate. The movable rod 524 fixed at one end of the movable ring 521 is fixed to the two ends of the movable ring 521 through its two ends. The limiting bars 57 symmetrically arranged at the ends are used for limiting, so that the movable ring 521 drives the locking bar 522 to move only horizontally and reciprocatingly under the limitation of the limiting bars 57, thereby improving the movement stability of the movable ring 521 and the fixed locking bar 522. The movable rod 524 is connected to the transmission component 55 through the transmission connection, and the transmission component 55 drives the sliding ring fixed to the movable rod 524 to move under the drive of the driving component 54. The linkage component 3 is manually operated to separate the locking bar 522 fixed to the movable ring 521 from the limiting rack 33, so that the pushing frame 6 can adjust the angle of the drill body 7. After the feeding frame 6 adjusts the angle of the drill body 7, when the locking strip 522 fixed to the movable ring 521 interferes with the limiting toothed ring 66, the adjusting member 56 fixed to the outer shell of the U-shaped frame 51 is rotated, so that the adjusting member 56 drives the movable built-in frame 53 located in the U-shaped frame 51 to move, and the limiting strip fixed to the built-in frame 53 drives the movable ring 521 fixed to the movable rod 524 to rotate along the axis of the connecting shaft 65, so that the locking strip 522 and the limiting toothed ring 66 are dislocated and separated after interfering, thereby improving the stability and convenience of locking the pushing frame 6 and the high precision of the angle adjustment of the drill body 7; Support plates 64 are symmetrically fixed to both ends of the connecting shaft 65, and a slide 61 is fixedly connected through the support plates 64. A handle rod 67 is fixedly connected to the end of the slide 61 close to the support plate 64. A slider 62 is slidably provided in the slide 61, and the drill body 7 is fixedly connected to the slider 62 and pushed along the slide 61 in a directional manner by rotating the handle 63. Specifically, the support plates 64 fixedly connected to both ends of the connecting shaft 65 are triangular structures. The handle rod 67 fixedly connected to the support plate 64 near the sliding seat 61 improves the convenience of manual operation. A slider 62 is slidably connected inside the sliding seat 61 fixedly connected to the connecting shaft 65 through the support plate 64. A rotating handle 63 provided at one end of the sliding seat 61 penetrates through the sliding seat 61 and is fixedly connected with a tooth block. By meshing the tooth block with the tooth groove opened on the slider 62, when the rotating handle 63 drives the tooth block to rotate, the slider 62 moves directionally along the sliding seat 61 and pushes the drill body 7 fixedly connected to the slider 62 directionally, completing the hole opening of the metal plate by the drill body 7 and improving the convenience of using the drill body 7; An arc-shaped seat 565 is fixedly connected inside the limiting strip 57. Two arc-shaped seats 565 are movably provided with a sphere 564. One end of the sphere 564 is fixedly connected with a sliding rod 563. The sliding rod 563 is connected through a connecting rod 562. The connecting rod 562 drives the limiting strip fixed on the built-in frame 53 to move along the groove 511 opened in the U-shaped frame 51 through the nut rod 561 threadedly connected to the top end; Specifically, the limiting strip 57 is in a rectangular strip structure and is fixed on the built-in frame 53. Two arc-shaped seats 565 are fixedly connected inside the two limiting strips 57. Two arc-shaped seats 565 limit a sphere 564. The sphere 564 is arranged on the connecting rod 562 through a sliding rod 563. The sliding rod 563 penetrates through the connecting rod 562 and is in a sliding structure with the connecting rod 562. When the rotating nut rod 561 drives the connecting rod 562 to rise or fall, the sphere 564 located in the two arc-shaped seats 565 drives the built-in frame 53 fixedly connected to the limiting strip 57 to move. The built-in frame 53 is movably arranged in the groove 511 opened in the U-shaped frame 51, realizing that the built-in frame 53 can move slightly in the U-shaped frame 51. The built-in frame 53 moves around the axis of the connecting shaft 65, so as to avoid the interference phenomenon of the locking strip 522 and the limiting tooth ring 66 being locked; An armrest 21 is fixedly connected to the top end of the support arm 2. A pull handle strip 31 is slidably arranged inside the armrest 21. A pull rope strip 32 is arranged on the pull handle strip 31. One end of the pull rope strip 32 is fixedly connected with a rack 33. The rack 33 meshes with the gear shaft 551. The other end of the pull rope strip 32 is fixedly connected with a connecting strip 42; A support arm 545 is provided at the end of the movable rod 524 away from the movable ring 521. Two support arms 545 are provided with support columns 544 at the ends away from the movable rod 524. One end of the support column 544 is fixedly connected with a sliding strip 543. Two sliding strips 543 are symmetrically penetrated through by a guiding rod 542 at both ends. One end of the guiding rod 542 is fixedly connected with a guiding strip 541. The guiding strip 541 is fixed on the built-in frame 53 through a cross arm; A gear shaft 551 is rotatably arranged at one end of the built-in frame 53. A limiting wheel 552 is fixedly connected to one end of the gear shaft 551. A cam 553 is fixedly connected to one end of the limiting wheel 552. The cam 553 is arranged between the two sliding strips 543, and the sliding strips 543 are separated from each other by rotating the cam 553; Specifically, support arms 545 are provided at both ends of the movable ring 521. The support arms 545 are connected to a sliding bar 543 through a support column 544. A cam 553 is provided between the two sliding bars 543. When the pull cord 32 pulls the rack 33 to move, the gear shaft 551 engaged with the rack 33 rotates. The limit wheel 552 and the cam 553 fixedly connected to the gear shaft 551 rotate synchronously. The limit wheel 552 abuts against the sliding bar 543 for limiting. The rotation of the cam 553 drives the sliding bar 543 to separate towards both ends, so that the sliding bar 543 drives the two movable rods 524 to gather through the support arms 545, facilitating the movable rods 524 to drive the locking bar 522 fixedly connected to the movable ring 521 to separate from the limit rack 33, improving the convenience of adjusting the angle of the drill body 7 of the device and the efficiency of using the drill body 7. The limit assembly 4 includes a rotating shaft rod 41. A connecting bar 42 is fixedly connected to the top end of the rotating shaft rod 41. A fixing bar 43 is fixedly connected to the bottom end of the rotating shaft rod 41. Limit columns 44 are symmetrically and fixedly connected to the bottom end of the fixing bar 43. A sleeve 22 is fixedly connected to the bottom end of the support arm 2. The sleeve 22 is provided with an orientation groove for defining the movement track of the connecting bar 42. A locking block 23 is rotatably provided at the bottom end of the sleeve 22. The locking block 23 is fixedly connected to the magnetic base 1 and is adapted to the limit column 44. Specifically, the rotating shaft rod 41 of the limit assembly 4 is movably arranged in the sleeve 22. The sleeve 22 is fixedly connected to the support arm 2. The sleeve 22 is rotatably connected to the locking block 23. When the pull cord 32 in the linkage assembly 3 drives the connecting bar 42 to move, the connecting bar 42 drives the limit column 44 fixedly connected to the fixing bar 43 to move through the rotating shaft rod 41, causing the limit column 44 to separate from the locking block 23, facilitating the support arm 2 to drive the push frame 6 to rotate. The drill body 7 fixedly connected to the push frame 6 rotates synchronously, enabling the drill body 7 and the limit assembly 4 connected by the support arm 2 to be adjusted at multiple angles, improving the flexibility of adjusting the angle of the drill body 7.

[0018] Working principle: The magnetic base 1 is powered so that the magnetic base 1 is adsorbed and fixed on the metal plate. The magnetic base 1 is connected to the pushing frame 6 through the support arm 2. The pushing frame 6 is used for the directional movement of the fixed drill body 7. The linkage assembly 3 arranged in the support arm 2 respectively transmits the locking assembly 5 and the limiting assembly 4, so that the drill body 7 can be adjusted in angle; wherein, the U-shaped frame 51 in the locking assembly 5 sleeves the connecting shaft 65 in the pushing frame 6, and the connecting shaft 65 passes through the U-shaped frame 51 and is rotatably arranged in the U-shaped frame 51. The limiting tooth rings 66 are symmetrically fixed on the connecting shaft 65. The two limiting tooth rings 66 are aligned with the center point of the connecting shaft 65 and have an inclined surface, which acts on the limiting tooth ring 6 by sliding on the two locking members 52. 6 lock, the movable ring 521 included in the locking member 52 is sleeved and slidably arranged on the connecting shaft 65, the locking strip 522 fixed at one end of the movable ring 521 is adapted to the limiting toothed ring 66 with an inclined surface, and the locking strip 522 is adapted to be locked with the limiting toothed ring 66 by the supporting spring 523 fixed between the two movable rings 521, so that the pushing frame 6 is stably locked on the support arm 2 with a rotatable structure, and the movable rod 524 fixed at one end of the movable ring 521 is limited by the limiting strips 57 symmetrically arranged at its two ends, so that the movable ring 521 drives the locking strip 522 to move back and forth only horizontally under the limitation of the limiting strip, thereby improving the movable ring 521 and the fixed The locking bar 522 has a stable movement, and is connected to the transmission assembly 55 through the movable rod 524. The transmission assembly 55 drives the sliding ring fixed to the movable rod 524 to move under the drive of the driving assembly 54. The locking bar 522 fixed to the movable ring 521 is separated from the limiting rack 33 through manual operation of the linkage assembly 3, so that the pushing frame 6 can adjust the angle of the drill body 7. When the pushing frame 6 adjusts the angle of the drill body 7, the locking bar 522 fixed to the movable ring 521 interferes with the limiting gear ring 66. The adjusting member 56 fixed to the outer shell of the U-shaped frame 51 is rotated by rotating the adjusting member 56, so that the adjusting member 56 drives the movable built-in frame 53 located in the U-shaped frame 51 to move, and the fixed part in the built-in frame 53 The limit bar connected drives the movable ring 521 fixed to the movable rod 524 to rotate along the axis of the connecting shaft 65, so as to realize the misalignment and separation of the locking bar 522 and the limiting tooth ring 66 after interference, so as to improve the stability and convenience of locking the pushing frame 6, and at the same time improve the high precision of the angle adjustment of the drill body 7; finally, the slider 62 is slidably connected to the slide 61 fixed by the support plate 64, and the rotating handle 63 set at one end of the slide 61 passes through the slide 61 and is fixed with a tooth block, which engages with the tooth groove provided on the slider 62 through the tooth block. When the rotating handle 63 drives the tooth block to rotate, the slider 62 moves in a direction along the slide 61 and pushes the drill body 7 fixed on the slider 62 in a direction to complete the drilling of the metal plate.

[0019] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and concept of the present invention, making equivalent substitutions or changes, shall be covered by the protection scope of the present invention.

Claims

1. A multi-angle rotatable magnetic drill, characterized in that, It comprises a magnetic base (1) and a push frame (6) connected via a support arm (2); A drill body (7) is provided at one end of the pushing frame (6), and the pushing frame (6) drives the drill body (7) to move in a horizontal direction and complete the drilling; The support arm (2) is provided with a linkage assembly (3) at one end, and the linkage assembly (3) is respectively connected to the locking assembly (5) and the limiting assembly (4). The locking assembly (5) includes a U-shaped frame (51), and a connecting shaft (65) for connecting to the pushing frame (6) is provided through the U-shaped frame (51). A limiting tooth ring (66) is symmetrically fixed on the outside of the connecting shaft (65). A locking member (52) for locking is provided between the two limiting tooth rings (66). The locking member (52) includes a movable ring (521) for sliding connection with the connecting shaft (65). A locking strip (522) is fixed to one end of the movable ring (521). A locking member for supporting and locking is provided between the two movable rings (521). The support spring (523) is locked with the strip (522) and the limiting tooth ring (66), and a movable rod (524) is fixedly connected to the outer ring surface of the movable ring (521), and both ends of the movable rod (524) are limited on the built-in frame (53) through the limiting strip (57); one end of the built-in frame (53) is provided with a transmission component (55), and the transmission component (55) is transmission-connected to the driving component (54), and the movable rod (524) is transmission-connected through the driving component (54), so that the movable rod (524) drives the locking strip (522) fixed to the movable ring (521) along the limiting strip (57) to separate from the limiting tooth ring (66), so as to realize that the drill body (7) fixed to the pushing frame (6) can be adjusted in angle; It also includes an adjusting member (56), the adjusting member (56) is transmission-connected to a limit bar, and the limit bar drives the built-in frame (53) to move slightly along the axis of the connecting shaft (65) through the adjusting member (56), thereby avoiding locking interference between the limit gear ring (66) and the locking bar (522).

2. The angle-adjustable magnetic drill according to claim 1, wherein The two ends of the connecting shaft (65) are symmetrically fixed with support plates (64), and a slide seat (61) is fixedly connected through the support plate (64). The end of the slide seat (61) close to the support plate (64) is fixedly connected to a handle rod (67). A slider (62) is slidably provided in the slide seat (61), and the drill body (7) is fixedly connected through the slider (62) and the drill body (7) is pushed directionally along the slide seat (61) by rotating the handle (63).

3. The angle-adjustable magnetic drill according to claim 1, wherein An arc seat (565) is fixedly connected to the limiting strip (57), and a sphere (564) is movably provided in the two arc seats (565). A sliding rod (563) is fixedly connected to one end of the sphere (564), and a connecting rod (562) is connected to the sliding rod (563). The connecting rod (562) drives the limiting strip fixed to the built-in frame (53) to move along the groove (511) provided in the U-shaped frame (51) through a nut rod (561) threadedly connected to the top.

4. A multi-angle rotatable magnetic drill according to claim 1, characterized in that, At the top end of the support arm (2), there is a handrail (21) fixedly connected. A pull bar (31) is slidably arranged inside the handrail (21). A pull rope (32) is arranged on the pull bar (31). One end of the pull rope (32) is fixedly connected to a rack (33), and the rack (33) meshes with a gear shaft (551). The other end of the pull rope (32) is fixedly connected to a connecting bar (42).

5. The angle-adjustable magnetic drill according to claim 1, characterized in that, At one end of the movable rod (524) away from the movable ring (521), there is a support arm (545). At one end of the two support arms (545) away from the movable rod (524), there is a support column (544). One end of the support column (544) is fixedly connected to a sliding bar (543). The two sliding bars (543) are symmetrically penetrated by a guiding rod (542) at both ends. One end of the guiding rod (542) is fixedly connected to a guiding bar (541), and the guiding bar (541) is fixed to the built-in frame (53) through a cross arm.

6. The multi-angle rotatable magnetic drill according to claim 1, wherein, One end of the built-in frame (53) is rotatably provided with a gear shaft (551). One end of the gear shaft (551) is fixedly connected to a limiting wheel (552). At one end of the limiting wheel (552), there is a cam (553) fixedly connected. The cam (553) is arranged between the two sliding bars (543), and by rotating the cam (553), the sliding bars (543) are separated from each other towards both ends.

7. A multi-angle rotatable magnetic drill according to claim 1, characterized in that, The limiting component (4) includes a rotating shaft rod (41). At the top end of the rotating shaft rod (41), there is a connecting bar (42) fixedly connected. At the bottom end of the rotating shaft rod (41), there is a fixing bar (43) fixedly connected. At the bottom end of the fixing bar (43), there are limiting columns (44) symmetrically fixedly connected.

8. A multi-angle rotatable magnetic drill according to claim 1, wherein, At the bottom end of the support arm (2), there is a sleeve (22) fixedly connected. The sleeve (22) is provided with a guiding groove for defining the movement track of the connecting bar (42). At the bottom end of the sleeve (22), there is a locking block (23) rotatably arranged, and the locking block (23) is fixedly connected to the magnetic base (1) and is adapted to the limiting column (44).

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