CN114939690B - Magnetic drill large-aperture processing device - Google Patents

Abstract

The invention discloses a magnetic drilling large aperture processing device, which includes a drilling device, a Z-axis moving device, a plane polar coordinate moving device, a drill bit protection device and an angle tilting device. The drilling device is connected to the Z-axis moving device through a lead screw and a light rod. The axis moving device is embedded in the annular groove of the magnetic drill frame through the upper guide rail and can rotate freely. The upper end of the plane polar coordinate moving device is fixed on the upper guide rail, and the lower end is fixed on the lower guide rail. The lower guide rail is also connected to the upright column of the magnetic drill frame through the ring frame. Connected, the detachable drill bit protection device is connected to the drill bit part of the drill rig device, and the detachable angle tilt device is connected to the magnetic drill rig frame on the outside. The invention solves the problem in the prior art that it is difficult to accurately position and drill holes with magnetic drilling equipment, and even the problem that it cannot be accurately positioned in some working scenes, and that in some working scenes it is impossible to achieve drilling with a certain angle deviation from the plane fixed by the equipment. Problems with hole work.

Description

Magnetic drill large hole processing device

Technical field

The invention belongs to the technical field of magnetic drills, and specifically relates to a magnetic drill large hole processing device.

Background technique

When installing large and medium-sized equipment in outdoor and high-altitude operations, equipment with threaded connections needs to be drilled on the surface of the object to be installed in advance. The installation of some equipment requires precise drilling and tapping on the surface of the material like drilling holes with indoor machine tools. , but general hand tools cannot achieve precise drilling; secondly, when drilling and tapping vertical steel structures, and when inverted drilling and tapping are required, people need to expend a lot of physical strength to fix the drilling machine, or they may not be able to fix the drilling at all. Working practice urgently needs a tool: firstly, it is lightweight and is very suitable for outdoor and high-altitude operations; secondly, when it starts drilling and tapping, it can be adsorbed on the steel structure by itself, without the need for manual fixation. The magnetic drill is a metal processing tool that can be adsorbed on the steel structure for drilling, tapping, and reaming. It can well solve the problems of outdoor and some indoor drilling operations.

There are still some problems with existing magnetic drilling equipment. For example, it is difficult to achieve precise positioning when drilling, and the magnetic drill needs to be manually moved for positioning. When the magnetic drill is placed upright, it is more troublesome to manually move the magnetic drill for positioning, but it is still feasible. When the magnetic drill needs to be inverted for drilling and tapping, it becomes extremely difficult to use manual movement of the magnetic drill to accurately locate the drilling position.

For hole expansion processing, especially when the hole diameter needs to be larger, large machine tools are generally required, and larger drilling tools are used for processing. However, due to the requirement of ease of use, existing magnetic drills are generally designed to be larger in size. It is small and equipped with a small tool drive motor, so it does not have the ability to process large-diameter holes.

In addition, existing magnetic drilling equipment can only drill holes within the fixed plane where the equipment is located. When there is a certain angle deviation between the fixed plane and the location where the hole needs to be drilled, the existing magnetic drilling equipment cannot drill holes, which means the working range is limited. Greater sex.

In summary, there is an urgent need for a magnetic drill that can perform precise positioning and drill holes at an oblique angle to solve the above problems.

Contents of the invention

The purpose of the present invention is to provide a magnetic drill large-aperture processing device, which solves the problem in the prior art that it is difficult to accurately position and drill holes with magnetic drill equipment, and even cannot accurately position in some work scenes, and in some work scenes The problem of not being able to perform drilling operations with a certain angle deviation from the plane where the equipment is fixed. At the same time, for working conditions that require the use of magnetic drills for hole expansion processing, the present invention uses the cooperation of three devices: a Z-axis moving device, a polar coordinate ρ direction moving mechanism and a polar coordinate θ direction moving mechanism, by moving the hole along the to-be-explored processing plane in the hole expansion processing plane. The circular interpolation movement in the circumferential direction of the hole and the feed movement along the Z axis (perpendicular to the circumferential direction of the hole to be expanded) are realized by hole expansion processing. This hole expansion processing method uses a small drive motor and a smaller drilling tool, and uses drilling Or the method of cutting the side of the aperture to be expanded by cutting the side of the milling tool, and realizing large-diameter hole expansion through arc interpolation, which effectively solves the problem that the existing magnetic drill cannot perform large-diameter hole expansion.

The technical solution adopted by the present invention is a magnetic drill large aperture processing device, which includes a drilling rig device, a Z-axis moving device, a plane polar coordinate moving device, a drill bit protection device and an angle tilting device. The drilling rig device moves with the Z-axis through a lead screw and a light rod. The device is connected. The Z-axis moving device is embedded in the annular groove of the magnetic drill frame through the upper guide rail and can rotate freely. The upper end of the plane polar coordinate moving device is fixed on the upper guide rail and the lower end is fixed on the lower guide rail. The lower guide rail also passes through the annular frame. Connected to the upright column of the magnetic drill rig frame, the detachable drill bit protection device is connected to the drill bit part of the drill rig device, and the detachable angle tilt device is connected to the magnetic drill rig frame on the outside.

The technical solution of the present invention is also characterized by:

The specific structure of the drilling rig device is: the electric drill motor, motor fixing plate and spindle reducer are connected through bolts and nuts. The bottom end of the spindle reducer extends out of the drill spindle, and the drill spindle is connected to the drill bit.

The specific structure of the Z-axis moving device is: two lead screws and two light rods are alternately connected to the main shaft reducer housing in the lower half. The upper ends of the lead screw and light rod pass through baffles A and B and are fixed on the upper slide block. ;The upper slide block is buckled in the chute on the side of the upper guide rail. The upper guide rail is connected to the frame through the upper guide rail support plate B to maintain the same height, so that the upper slide block and the screw and light rod connected to it maintain the height. unchanged, when the screw rotates in the outer screw sleeve of the main shaft reducer, it causes the main shaft reducer to rise or fall, thereby causing the electric drill to move up and down. When the main shaft reducer rises or falls, it also drives the lower shaft fixedly connected to the main shaft reducer. The lower slider is buckled into the slide groove on the side of the lower guide rail, so that the lower guide rail also moves up and down accordingly. Both ends of the lower guide rail are embedded in the annular groove of the ring frame, which in turn drives the ring frame to also move up and down. , three outer slider claws protrude from the outside of the ring frame, and are embedded in the grooves of the frame columns to slide up and down. There are reduction pinions fixed on the screw and light rod between baffles A and B. Four Each reduction pinion gear meshes with the center gear respectively; the four reduction pinion gears are fixedly connected with the lead screw and light rod respectively. The center gear is driven to rotate by the Z-axis motor through the planetary reducer. The planetary reducer uses the planetary gear to reduce the rotational speed and outputs it through the sun gear. There are 4 small protrusions on the planetary reducer housing to fix the Z-axis motor.

The specific structure of the plane polar coordinate moving device is divided into a polar coordinate ρ direction moving mechanism and a polar coordinate θ direction moving mechanism.

Polar coordinate ρ direction moving mechanism: Through the rotation of the ρ motor, the upper slider and the lower slider slide on the upper and lower guide rails respectively. The baffles A and B in the Z-axis moving device are fixed to the upper slider. The top of the lead screw and light rod are connected to the upper slide block. There are slide grooves on both sides of the upper slide block. The slide grooves of the upper slide block are buckled in the slide grooves on the sides of the upper guide rail. There are two rods passing through the center of the upper slide block. Synchronize the upper guide screw, and the upper slider moves in the polar coordinate ρ direction through the rotation of the upper guide screw. Both ends of the two synchronous upper guide screws are connected to the upper guide plate B. One end of the upper guide screw ends at Near the overall center of the equipment, an upper guide screw transmission gear is fixed on each of the two upper guide screws. The two upper guide screw transmission gears mesh with the upper guide screw intermediate transmission gear in the middle. The upper guide screw intermediate transmission gear The other end of the shaft is the upper transmission bevel gear A, which rotates through meshing with the upper transmission bevel gear B on the ρ motor shaft. The bottom of the shell of the main shaft reducer in the drilling rig device is connected to the lower block through bolts. The center of the lower block A hole is dug so that the drill spindle can pass directly through the lower block. There are also slide grooves on both sides of the lower block. The slide grooves on the sides of the lower block snap into the slide grooves on the sides of the lower guide rail. The center of the lower block passes through There are two synchronous lower guide screws. The rotation of the lower guide screw causes the lower block to move in the polar coordinate ρ direction. Both ends of the two synchronous lower guide screws are connected to the lower guide rail. One end of the lower guide screw ends at Near the overall center of the equipment, a lower guide screw transmission gear is fixed on each of the two lower guide screws. The two lower guide screw transmission gears mesh with the lower guide screw intermediate transmission gear in the middle. The lower guide screw intermediate drive The other end of the shaft where the gear is located is the lower transmission bevel gear A. It meshes and rotates with the lower transmission bevel gear B on the long spline linked to the ρ motor. The upper slider and the lower slider are driven by the same ρ motor, so that the upper slider and the lower slider are driven by the same ρ motor. The lower block is linked, so that the upper slider and the lower block move synchronously in the polar coordinate ρ direction. The ρ motor is fixed through the ρ motor support frame. The upper end of the ρ motor support frame is fixed on the upper guide rail. The ρ motor support The lower end of the frame is fixed to the lower guide rail through the ρ motor support frame pillar. The lower end of the ρ motor support frame is designed with a sleeve and is placed on the ρ motor support frame pillar. The lower part of the ρ motor is driven by a ρ motor linkage long spline.

The specific structure of the polar coordinate θ direction moving mechanism is: relying on the upper guide rail end gear and the lower guide rail end gear on the upper guide rail and the lower guide rail respectively, and the gears and rings in the upper frame groove in the annular groove of the upper frame and annular frame. The meshing of the gears in the frame groove completes the movement in the θ direction and is divided into upper and lower parts. The upper part is where the upper rail end gear at the end of the upper guide rail meshes with the upper frame groove internal gear in the upper frame groove. The upper frame There is a large groove in the upper frame. The upper rail and upper rail support plate B are stuck in the large groove of the upper frame. The upper rail support plate B and the upper rail support plate A are connected together by bolts. The upper rail support plate A Through the frame, a thrust bearing forms a rotating pair between the upper rail pallet A and the upper surface of the upper frame. The upper rail pallet A and the upper rail pallet B can bear part of the vertical force. The upper frame is large. There is a small groove of the upper frame in the middle part of the groove. The gear inside the groove of the upper frame is placed in the small groove, meshing with the end gear of the upper rail at the end of the upper rail. The lower part is the end gear of the lower rail at the end of the lower rail. The ring frame groove in the ring frame is meshed with internal gears. Three outer slider claws protrude from the outside of the ring frame to match the grooves in the frame columns. Same as the upper part, there is also a large ring frame groove in the ring frame. groove, both ends of the lower guide rail are stuck in the large groove of the ring frame, and the lower guide rail can slide in the large groove of the ring frame when rotating. There is also a small groove of the ring frame in the middle of the large groove of the ring frame. The internal gear of the ring frame is placed in the small groove of the ring frame, meshing with the end gear of the lower guide rail at the end of the lower guide rail. The end pinion of the upper guide rail and the end pinion of the lower guide rail are both. Driven by the θ motor, the θ motor is fixed through the θ motor support frame and the θ motor support frame pillars. The upper end is the θ motor support frame and is fixed on the upper guide rail. The lower end is the θ motor support frame pillar and is fixed on the lower guide rail. The θ motor supports The lower end of the frame also uses a sleeve design, so that the lower end of the θ motor support frame is sleeved on the θ motor support frame pillar. The θ motor linkage long spline is used under the θ motor to drive the screw with a transmission bevel gear. The upper guide rail and the lower The linkage of the guide rails causes the upper guide rail and the lower guide rail to rotate synchronously at the same time.

The drill bit protection device is divided into two parts. The ring part of the upper plate of the drill bit protection device is fixed at the end of the drill spindle through a threaded connection. The protruding long plate part is in the form of a sleeve. The protruding long plate part of the lower plate of the drill bit protection device protects the drill bit. The upper plate is transposed and a long plate is stretched out to cover it. The bearing is placed on the lower half of the ring. A rubber ring is placed on the inner ring of the bearing. The drill bit passes through the center of the rubber ring.

The specific structure of the angle tilt device: the top of the upper frame of the magnetic drill is fixedly connected to the magnetic drill connecting plate. The upper surface of the magnetic drill connecting plate is fixedly connected to the telescopic sleeve plate. The end of the telescopic sleeve plate is hinged to 2 hinged collars and 2 hinged sleeves. The ring fits over one of the uprights of the angled tilt rack. The telescopic plug-in board and the telescopic cover plate are connected in the form of a sleeve. The end of the telescopic plug-in board is also hinged with two hinged collars. The two hinged collars are on the other side of the column of the angle-inclined rack. The rear side of the hinged collar is Tighten the handwheel and the hinged collar moves up and down on the angle tilt frame column to adjust the tilt angle of the magnetic drill.

The beneficial effect of the present invention is to solve the problem of difficulty in accurate positioning and drilling of existing magnetic drill equipment. The present invention can accurately position and drill holes in most working scenarios, and can also perform drilling in some special situations where ordinary magnetic drills cannot drill holes. Drilling operations can also be performed in the work scene, which solves the problem that drilling operations with a certain angle deviation from the plane where the equipment is fixed cannot be achieved in some work scenes. The innovative structure of the magnetic drill of the present invention allows it to process any hole diameter within a relatively large range, is especially suitable for large hole processing, and has functions that existing magnetic drills do not have, so that it can adapt to a wider range of work scenarios. , can meet more processing requirements.

Description of drawings

Figure 1 is an overall schematic diagram of the new structure magnetic drill;

Figure 2 is an overall schematic diagram of the new structure magnetic drill;

Figure 3(a) is a schematic diagram of the top surface (partially in cross-section) of the magnetic drill with this new structure;

Figure 3(b) is a schematic diagram of the Z-axis motor and planetary reducer;

Figure 3(c) is a partial schematic diagram of the Z-axis motor and planetary reducer housing;

Figure 4 is a schematic diagram of the bottom surface of the magnetic drill with this new structure;

Figure 5 is an overall schematic diagram of the new structure magnetic drill;

Figure 6 is a schematic diagram of the new structure magnetic drill and angle tilt device;

Figure 7(a) is a specific schematic diagram of the screw and transmission gear of the ρ direction moving mechanism;

Figure 7(b) is a schematic diagram of the θ direction moving mechanism, ρ direction moving mechanism and transmission gear;

Figure 8 is a specific schematic diagram of the internal gear meshing in the θ direction moving mechanism;

Figure 9 is a schematic diagram of the ring frame structure.

Among them, 1. Upper frame, 2. Upper slider, 3. Upper guide rail, 4. ρ motor support frame, 5. Frame column, 6. θ motor support frame, 7. Coupling, 8. Machine Frame base, 9. Ring frame, 10. Lower plate of drill bit protection device, 11. Reduction pinion, 12. Baffle A, 13. Baffle B, 14. Lead screw, 15. Light rod, 16. Spindle reducer outer Lead screw sleeve, 17. Electric drill motor, 18. Spindle reducer outer light rod sleeve, 19. Motor fixing plate, 20. Spindle reducer, 21. Lower guide rail, 22. Drill bit, 23. ρ motor, 24. θ Motor, 25. θ motor support frame pillar, 26. θ motor linkage long spline, 27. ρ motor linkage long spline, 28. Upper guide rail support plate A, 29. Thrust bearing, 30. Upper slide block connecting frame, 31. Upper plate of drill bit protection device, 32. Drilling rig spindle, 33. Upper guide screw transmission gear A, 34. Upper transmission bevel gear A, 35. Upper guide screw intermediate transmission gear, 36. Upper guide screw transmission gear B , 37. Electromagnet, 38. Lower guide screw, 39. Rubber ring, 40. Lower block, 41. Drill bit protection device set screw, 42. Upper frame groove internal gear, 43. ρ motor support frame Pillar, 44. Lower guide screw gear, 45. Ring frame groove internal gear, 46. Angle tilt frame, 47. Hinge collar, 48. Tightening handwheel, 49. Fixed rod, 50. Telescopic sleeve plate, 51. Telescopic insert plate, 52. Magnetic drill connecting plate, 53. Angle tilt frame column, 54. Upper guide screw, 55. Lower guide end gear, 56. Upper guide end gear, 57. Center gear, 58.Z Shaft motor, 59. Planetary reducer, 60. Small convex column, 61. ρ motor shaft, 62. Large groove of upper frame, 63. Small groove of upper frame, 64. Large groove of ring frame, 65. Ring The small groove of the frame, 66. Upper guide rail support plate B, 67. Lower guide rail screw transmission gear, 68. Upper transmission bevel gear B, 69. Lower transmission bevel gear A, 70. Lower transmission bevel gear B, 71. Lower guide rail Screw intermediate transmission gear, 72. Lower guide screw transmission gear, 73. Outer slider claw.

Detailed ways

The present invention will be described in detail below with reference to the drawings and specific embodiments.

The magnetic drill large aperture processing device of the present invention has a structure as shown in Figure 1, including a drilling rig device, a Z-axis moving device, a plane polar coordinate moving device, a drill bit protection device and an angle tilting device. The drilling rig device communicates with the Z axis through a lead screw 14 and a light rod 15. The Z-axis moving device is embedded in the annular groove of the magnetic drill frame through the upper guide rail 3 and can rotate freely. The upper end of the plane polar coordinate moving device is fixed on the upper guide rail 3, and the lower end is fixed on the lower guide rail 21. The guide rail 21 is also connected to the magnetic drill frame column 5 through the annular frame 9. The detachable drill bit protection device is connected to the drill bit part of the drilling rig device, and the detachable angle tilt device is connected to the magnetic drill frame on the outside. The plane polar coordinate moving device allows the drilling rig to move arbitrarily within the range of the magnetic base to achieve precise positioning. The Z-axis moving device allows the drilling rig to gradually drop from the initial safety height to the working height for drilling and other operations. The angle tilt device can tilt the drilling rig at a certain angle to perform drilling operations in special working scenarios.

As shown in Figure 1: The specific structure of the drilling rig device is: the electric drill motor 17, the motor fixing plate 19 and the spindle reducer 20 are connected through bolts and nuts. The bottom end of the spindle reducer 20 extends out of the drill spindle 32, and the drill spindle 32 is connected to the drill bit. 22 connections. After the electric drill motor 17 is started, the drill spindle 32 drives the drill bit 22 to rotate after the spindle reducer 20 increases the torque, and the drilling work can be performed.

As shown in Figures 1, 2, 3(a), 3(b), 3(c), 5, and 9: the specific structure of the Z-axis moving device is: two screws 14 and two The lower part of the light rod 15 is alternately connected to the main shaft reducer 20 shell. The upper ends of the lead screw 14 and the light rod 15 pass through the baffle A12 and the baffle B13 and are fixed on the upper slider 2; the upper slider 2 is buckled on the upper slider 2. In the chute on the side of the guide rail 3, the upper guide rail 3 is connected to the frame through the upper guide rail support plate B 66 to keep the height constant, so that the upper slide block 2 and the connected lead screw 14 and light rod 15 keep the height constant. . The light rod 15 plays the role of positioning and balancing the electric drill. When the screw 14 rotates in the outer screw sleeve 16 of the main shaft reducer, the main shaft reducer 20 rises or falls, thereby causing the electric drill to move up and down, and the main shaft reducer 20 rises or falls. While descending, the lower block 40 fixedly connected to the main shaft reducer 20 is driven. The lower block 40 is buckled in the chute on the side of the lower guide rail 21, so that the lower guide rail 21 also moves up and down accordingly. The two lower guide rails 21 The end is embedded in the annular groove of the annular frame 9, which in turn drives the annular frame 9 to move up and down. Three outer slider claws 73 extend from the outside of the annular frame 9, and are embedded in the grooves of the rack column 5 to slide up and down. Reduction pinions 11 are fixed on the lead screw 14 and the light rod 15 between the baffles A 12 and B 13. The four reduction pinions 11 mesh with the center gear 57 respectively; the four reduction pinions 11 mesh with the screw respectively. Bar 14 and light bar 15 are fixedly connected. The center gear 57 is driven to rotate by the Z-axis motor 58 through the planetary reducer 59 . The planetary reducer 59 uses planetary gears to reduce the rotational speed and outputs it through the sun gear 57. There are four small protrusions 60 on the outer shell of the planetary reducer 59 to fix the Z-axis motor 58. The working process provides power to the Z-axis motor 58. After being decelerated by the planetary reducer, the power is output to the center gear 57. The center gear 57 drives four reduction pinions 11 to drive the screw 14 and the light rod 15 to rotate, thereby causing the main shaft reducer 20 to rotate. and the drill bit 22 is lowered to perform drilling operations or raised for reset.

The specific structure of the planar polar coordinate moving device: it is divided into a polar coordinate ρ direction moving mechanism and a polar coordinate θ direction moving mechanism. Each of the two mechanisms works in conjunction with two parts.

As shown in Figure 1, Figure 3(a), Figure 3(b), Figure 3(b), Figure 4, Figure 7(a), and Figure 7(b): the polar coordinate ρ direction moving mechanism: (mainly It includes ρ motor 23, upper slide block 2, lower slide block 40, upper guide rail 3, lower guide rail 21, upper guide rail screw 54, lower guide screw 38, two upper guide screw transmission gears 33, 36, and two lower guide screws. Guide rail screw transmission gears 67, 72, upper guide rail screw intermediate transmission gear 35, lower guide screw intermediate transmission gear 71, lower transmission bevel gear A 69, lower transmission bevel gear B 70, ρ motor support frame 4, ρ motor Supporting frame pillar 43, ρ motor linkage long spline 26, etc.), through the rotation of ρ motor 23, the upper slider 2 and the lower slider 40 slide on the upper guide rail 3 and the lower guide rail 21 respectively. In the Z-axis moving device The baffle A 12 and the baffle B13 are fixedly connected to the upper slide block 2. The tops of the screw 14 and the light rod 15 are connected to the upper slide block 2. There are slide grooves on both sides of the upper slide block 2. The slide grooves of the upper slide block 2 are clamped. It is buckled into the chute on the side of the upper guide rail 3. Two synchronous upper guide rail screws 54 pass through the center of the upper slide block 2. The rotation of the upper guide rail screws 54 causes the upper slide block 2 to move in the polar coordinate ρ direction. Both ends of the synchronous upper guide screw 54 are connected to the upper guide plate B 66. One end of the upper guide screw 54 ends near the overall center of the equipment. An upper guide screw transmission gear is fixed on each of the two upper guide screws 54. A33, upper guide screw transmission gear B36, upper guide screw transmission gear A33, upper guide screw transmission gear B36 meshes with the upper guide screw intermediate transmission gear 35 in the middle, and the upper guide screw intermediate transmission gear 35 is located on the shaft of the shaft. The other end is the upper transmission bevel gear A 34. By meshing and rotating with the upper transmission bevel gear B 68 on the ρ motor shaft 61, the bottom of the shell of the main shaft reducer 20 in the drilling rig device is connected with the lower block 40 through bolts, and the lower block 40 slides down. A hole is dug in the center of the block 40, so that the drill spindle 32 can directly pass through the lower block 40 from the hole, without affecting the normal operation of the drill bit 22. There are also slide grooves on both sides of the lower slider 40. The slide grooves on the sides of the lower slider 40 are buckled in the slide grooves on the sides of the lower guide rail 21. The working principle of the lower slider 40 is the same as that of the upper slider 2. The center of the lower slider 40 passes through There are two synchronous lower guide screws 38. The rotation of the lower guide screws 38 causes the lower block 40 to move in the polar coordinate ρ direction. Both ends of the two synchronous lower guide screws 38 are connected to the lower guide 21. The lower guide screws The end of one end of the rod 38 is near the overall center of the equipment. The two lower guide screws 38 are each fixed with a lower guide screw transmission gear 67 and a lower guide screw transmission gear 72. Two lower guide screw transmission gears 67 and 72 are fixed on the two lower guide screws 38. The guide screw transmission gear 72 meshes with the lower guide screw intermediate transmission gear 71 in the middle. The other end of the shaft where the lower guide screw intermediate transmission gear 71 is located is the lower transmission bevel gear A 69, which is linked with the ρ motor through the long spline 27 The upper lower transmission bevel gear B 70 meshes and rotates. The upper slider 2 and the lower slider 40 are driven by the same ρ motor 23, so that the upper slider 2 and the lower slider 40 are linked, so that the upper slider 2 and the lower slider 40 are linked. The slider 40 moves synchronously in the polar coordinate ρ direction. The ρ motor 23 is fixed by the ρ motor support frame 4. The upper end of the ρ motor support frame 4 is fixed on the upper guide rail 3. The lower end of the ρ motor support frame 4 passes through the ρ motor support machine. The frame pillar 43 is fixed on the lower guide rail 21. The lower end of the ρ motor support frame 4 is designed with a sleeve, which is put on the ρ motor support frame pillar 43. The bottom of the ρ motor 23 uses the ρ motor linkage long spline 26 for transmission. This design can So that when the Z-axis direction moving mechanism changes the distance between the upper and lower guide rails (3, 12), it will not affect the operation of the polar coordinate ρ direction moving mechanism. The polar coordinate ρ direction moving mechanism allows the upper and lower blocks 2, 40 and their attached parts to move along the upper and lower guide rails 21 from the center of the equipment to the end of the guide rail (i.e., where the ρ value is the largest) through the rotation of the upper and lower guide rail screws 38. The maximum distance is the maximum working range of the drill bit 22.

As shown in Figure 1, Figure 3(a), Figure 3(b), Figure 3(b), Figure 4, Figure 8, and Figure 9: the specific structure of the polar coordinate θ direction moving mechanism is: (mainly including an upper guide rail 3. Lower guide rail 21, upper guide rail end gear 56, lower guide rail end gear 55, ring frame 9, θ motor 24, θ motor support frame pillar 25, θ motor linkage long spline, etc.) respectively rely on the upper guide rail 3, the lower guide rail The upper guide rail end gear 56 and the lower guide rail end gear 55 on 21 mesh with the upper frame groove internal gear 42 and the annular frame groove internal gear 45 in the annular groove of the upper frame 1 and the annular frame 9 to complete the movement in the θ direction , divided into upper and lower parts, the upper part is the upper rail end gear 56 at the end of the upper rail 3 meshing with the gear 42 in the upper frame groove in the upper frame 1, there is an upper frame in the upper frame 1 The upper guide rail 3 and the upper guide rail support plate B 66 are stuck in the large groove 62 of the upper frame. The upper guide rail support plate B 66 and the upper guide rail support plate A 28 are connected together by bolts. The upper guide rail support plate A 28 passes through the frame, and a rotating pair is formed between the upper rail bracket A 28 and the upper surface of the upper frame 1 through a thrust bearing 29. The upper rail bracket A 28 and the upper rail bracket B 66 can bear part of the vertical direction. The upper guide rail support plate 28 and the upper guide rail 3 can rotate due to the force. When rotating, the upper guide rail support plate 28 and the two ends of the upper guide rail 3 slide in the large grooves in the frame. There is a small upper frame groove 63 in the middle of the upper frame large groove 62. The upper frame groove internal gear 42 is placed in the small groove and meshes with the upper guide rail end gear 56 at the end of the upper guide rail 3. The lower part is The lower guide rail end gear 55 at the end of the lower guide rail 21 meshes with the ring frame groove internal gear 45 in the ring frame 9, in which three outer slider claws 73 extend from the outside of the ring frame 9, which match the grooves in the frame column 5. Fittingly, the same as the upper part, the ring frame 9 also has a large ring frame groove 64. Both ends of the lower guide rail 21 are stuck in the ring frame large groove 64. The lower guide rail 21 can slide in the ring frame large groove 64 when rotating. . There is also a small ring frame groove 65 in the middle part of the ring frame large groove 64. The ring frame internal gear 45 is placed in the ring frame small groove 65, meshing with the lower guide rail end gear 55 at the end of the lower guide rail 21, and the upper guide rail 3 end pinion. The small gears at the end of the lower guide rail 21 are all driven by the θ motor 24. The θ motor 24 is fixed by the θ motor support frame 6 and the θ motor support frame pillar 25. The upper end is the θ motor support frame 6 fixed on the upper guide rail 3, and the lower end is The θ motor support frame pillar 25 is fixed on the lower guide rail 21, and the lower end of the θ motor support frame 6 is also designed with a sleeve, so that the lower end of the θ motor support frame 6 is sleeved on the θ motor support frame pillar 25, and is used below the θ motor 24 The θ motor linkage long spline 26 drives the lead screw transmission bevel gear 35, and the linkage between the upper guide rail 3 and the lower guide rail 21 causes the upper guide rail 3 and the lower guide rail 21 to rotate synchronously at the same time. This design can ensure that when the Z-axis direction moving mechanism causes the distance between the upper and lower guide rails (3, 12) to change, it will not affect the work of the polar coordinate θ direction moving mechanism. The design of the moving mechanism in the polar coordinate θ direction allows the upper guide rail 3 and the lower guide rail 21 to rotate synchronously around the center of the magnetic drill, thereby driving the drilling rig to move in the polar coordinate θ direction.

As shown in Figure 1, Figure 2, and Figure 5: Drill bit protection device: When it is necessary to use a drill bit protection device, such as when using a magnetic drill to expand a hole or when using a magnetic drill to drill a surface that has a certain inclination angle relative to a fixed plane. , this device can improve the force bearing condition of the drill bit 22 and thereby protect the drill bit 22 . The device can be removed when not needed.

The drill bit protection device is divided into two parts. The annular part of the upper plate 31 of the drill bit protection device is fixed at the end of the drill spindle 32 through a threaded connection. The extended long plate part is in the form of a sleeve. The extended long plate of the lower plate 10 of the drill bit protector is Part of the drill bit protection transposition upper plate extends out and is covered by a long plate, so that the length of the entire drill bit protection device is adjustable. The length is adjusted according to the drill bit used. When appropriate, the drill bit protection device set screw 41 is used to fix the length. A bearing is placed at the lower half of the ring, a rubber ring 39 is placed in the inner ring of the bearing, and the drill bit 22 passes through the center of the rubber ring 39. When the drill bit 22 is subjected to radial force, the sleeve portion of the drill bit 22 protection device gives the drill bit 22 a reaction force to ensure its stability.

As shown in Figure 6: the specific structure of the angle tilt device: use the angle tilt frame 46 to adjust the in-plane angle of the magnetic drill. The top of the upper frame 1 of the magnetic drill is fixedly connected to the magnetic drill connecting plate 52. The upper surface of the magnetic drill connecting plate 52 is fixedly connected to the telescopic sleeve plate 50. The end of the telescopic sleeve plate 50 is hinged with two hinged collars 47 and two hinged sleeves. The ring 47 is placed on one side column of the angle-inclined frame 46. The telescopic insert plate 51 is connected to the telescopic sleeve plate 50 in the form of a sleeve. The end of the telescopic insert plate 51 is also hinged with two hinge collars 47. The two hinge collars 47 are on the other side column of the angle-inclined frame 46. The rear side of the hinge collar 47 is a tightening hand wheel 48, and the hinge collar 47 moves up and down on the angle tilt frame column 53 to adjust the tilt angle of the magnetic drill. When the magnetic drill is adjusted to a suitable angle, the hinged collar 47 can be fixed by tightening the tightening hand wheel 48. When there is a certain inclination angle between the drilling surface and the plane fixed by the magnetic drill, the angle tilt device can be used to make the drill bit 22 perpendicular to the surface to be drilled. The angle tilt device allows the magnetic drill to adapt to more complex working conditions.

Processing plane: The cooperation of the polar coordinate ρ direction moving mechanism and the θ direction moving mechanism allows the magnetic drill to move freely within a certain circular area, thereby enabling the magnetic drill to adapt to more complex working conditions. When it is necessary to accurately locate the drilling position, just fix the magnetic drill at the approximate position, and use the electromagnet 37 to adsorb the magnetic drill to the surface to be processed. This can be accurately determined by using the plane polar coordinate moving device to adjust the movement of the drill bit 22 Punch location. When a large-diameter hole is required, the drill bit 22 can be moved in a circular motion to expand the hole by using the polar coordinate θ direction moving mechanism, or the drill bit 22 can be used to make a circular motion to perform reaming with higher processing accuracy.

Processing bevels: When the plane fixed by the magnetic drill is inclined at an angle to the surface to be processed, an angle tilt device can be used to fix the entire magnetic drill on a certain plane through the angle tilt frame 46 and the electromagnet 37 and make the fixing rod 49 parallel On the tilt angle plane, adjust the position of the hinge collar 47 on the tilt angle frame column 53 so that the bottom surface of the magnetic drill is parallel to the surface to be processed. Then process the object to be processed in the same way as the plane.

As shown in Figure 4: The bottoms of the magnetic drill and the angle tilt device are equipped with electromagnets 37, so that they can be adsorbed on the surface of magnetic materials and can be used according to specific working conditions.

Claims (3)

1. Magnetic drill large aperture processing device, characterized in that it includes a drilling device, a Z-axis moving device, a plane polar coordinate moving device, a drill bit protection device and an angle tilting device. The drilling rig device communicates with the machine through a lead screw (14) and a light rod (15). The Z-axis moving device is connected. The Z-axis moving device realizes free rotation through the upper guide rail (3) embedded in the annular groove of the magnetic drill frame. The upper end of the plane polar coordinate moving device is fixed on the upper guide rail (3), and the lower end is fixed on the lower guide rail (3). Guide rail (21), in which the lower guide rail (21) is also connected to the magnetic drill frame column (5) through the ring frame (9). The detachable drill bit protection device is connected to the drill bit part of the drill rig device. The detachable angle tilt device is on The outside is connected to the magnetic drill frame; The specific structure of the drilling rig device is: the electric drill motor (17), the motor fixing plate (19) and the spindle reducer (20) are connected through bolts and nuts, and the bottom end of the spindle reducer (20) extends out of the drilling rig spindle (32) , the drilling rig spindle (32) is connected to the drill bit (22); The specific structure of the Z-axis moving device is: two lead screws (14) and two light rods (15) are alternately connected to the main shaft reducer 20 shell in the lower half, and the upper ends of the lead screw (14) and the light rod (15) Pass through the baffle A (12) and the baffle B (13) and fix it on the upper slide block (2); the upper slide block (2) is buckled in the slide groove on the side of the upper guide rail (3), and the upper guide rail (3) The upper guide rail support plate B (66) is connected to the frame to keep the height constant, so that the upper slide block (2) and the screw (14) and light rod (15) connected to it keep the height constant. (14) When the spindle reducer outer screw sleeve (16) rotates, the spindle reducer (20) rises or falls, thereby causing the electric drill to move up and down. The spindle reducer (20) rises or falls simultaneously with the spindle. The lower block (40) is fixedly connected to the reducer (20), and the lower block (40) is buckled in the chute on the side of the lower guide rail (21), so that the lower guide rail (21) also moves up and down accordingly. Both ends of the lower guide rail (21) are embedded in the annular groove of the annular frame (9), which in turn drives the annular frame (9) to move up and down. Three outer slider claws (73) extend from the outside of the annular frame (9). It is embedded in the groove of the frame column (5) and slides up and down. There are reduction pinions fixed on the lead screw (14) and the light rod (15) between the baffles A (12) and B (13). (11), the four reduction pinions (11) are meshed with the center gear (57) respectively; the four reduction pinions (11) are fixedly connected with the lead screw (14) and the light rod (15) respectively, and the center gear (57) ) is driven to rotate by the Z-axis motor (58) through the planetary reducer (59). The planetary reducer (59) uses planetary gears to reduce the rotational speed and outputs it through the center gear (57). The planetary reducer (59) has The four small protrusions (60) serve to fix the Z-axis motor (58); The specific structure of the planar polar coordinate moving device is divided into a polar coordinate ρ direction moving mechanism and a polar coordinate θ direction moving mechanism; The polar coordinate ρ direction moving mechanism: through the rotation of the ρ motor (23), the upper slider (2) and the lower slider (40) slide on the upper guide rail (3) and the lower guide rail (21) respectively, Z The baffle A (12) and the baffle B (13) in the axis moving device are fixedly connected to the upper slide block (2), and the top ends of the screw (14) and light rod (15) are connected to the upper slide block (2). There are slide grooves on both sides of the block (2). The slide groove of the upper slide block (2) is buckled in the slide groove on the side of the upper guide rail (3). There are two synchronous upper guide rails passing through the center of the upper slide block (2). The screw (54), through the rotation of the upper guide screw (54), causes the upper slider (2) to move in the polar coordinate ρ direction. Both ends of the two synchronous upper guide screws (54) are in contact with the upper guide plate B ( 66) connection, one end of the upper guide screw (54) is located near the center of the entire equipment, and an upper guide screw transmission gear A (33) and an upper guide screw transmission gear are fixed on each of the two upper guide screws (54). B (36), the upper guide screw transmission gear A (33) and the upper guide screw transmission gear B (36) mesh with the upper guide screw intermediate transmission gear (35) in the middle, and the upper guide screw intermediate transmission gear (35) The other end of the shaft where 35) is located is the upper transmission bevel gear A (34). The upper transmission bevel gear A (34) engages and rotates with the upper transmission bevel gear B (68) on the ρ motor shaft (61). The main shaft in the drilling rig device The bottom of the housing of the reducer (20) is connected to the lower block (40) through bolts. A hole is dug in the center of the lower block (40) so that the drilling rig spindle (32) can directly pass through the lower block (40) from the hole. There are also chute on both sides of the lower block (40). The chute on the side of the lower block (40) is buckled into the chute on the side of the lower guide rail (21). There are two synchronous lower rails passing through the center of the lower block (40). The guide screw (38) causes the lower block (40) to move in the polar coordinate ρ direction through the rotation of the lower guide screw (38). Both ends of the two synchronous lower guide screws (38) are in contact with the lower guide rail (21). Connect, one end of the lower guide screw (38) ends near the center of the entire equipment, and a lower guide screw transmission gear A (67) and a lower guide screw transmission gear B are fixed on the two lower guide screws (38). (72), the lower guide screw transmission gear A (67) and the lower guide screw transmission gear B (72) mesh with the lower guide screw intermediate transmission gear (71) in the middle, and the lower guide screw intermediate transmission gear (71) ) is located at the other end of the shaft, which is the lower transmission bevel gear A (69). The lower transmission bevel gear A (69) engages and rotates with the lower transmission bevel gear B (70) on the ρ motor linkage long spline (27), and the upper slider (2) Use the same ρ motor (23) as the lower block (40) to drive, so that the upper slider (2) and the lower block (40) are linked, so that the upper slider (2) and the lower block (40) moves synchronously in the polar coordinate ρ direction. The ρ motor (23) is fixed by the ρ motor support frame (4). The upper end of the ρ motor support frame (4) is fixed on the upper guide rail (3). The ρ motor supports the machine. The lower end of the frame (4) is fixed to the lower guide rail (21) through the ρ motor support frame pillar (43). The lower end of the ρ motor support frame (4) is designed with a sleeve and is placed on the ρ motor support frame pillar (43). The bottom of the ρ motor (23) uses the ρ motor linkage long spline (27) for transmission; The specific structure of the polar coordinate θ direction moving mechanism is: relying on the upper guide rail end gear (56) and the lower guide rail end gear (55) on the upper guide rail (3), the lower guide rail (21) and the upper frame (1) and The internal gear (42) of the upper frame groove in the annular groove of the annular frame (9) meshes with the internal gear (45) of the annular frame groove to complete the movement in the θ direction, and is divided into upper and lower parts. The upper part is the upper guide rail. (3) The end gear (56) of the upper guide rail at the end meshes with the internal gear (42) of the upper frame groove in the annular groove of the upper frame (1). There is a large upper frame groove in the upper frame (1). (62), the upper guide rail (3) and the upper guide rail support plate B (66) are stuck in the large groove (62) of the upper frame, and the upper guide rail support plate B (66) and the upper guide rail support plate A (28) are bolted The upper guide rail support plate A (28) passes through the frame, and a thrust bearing (29) forms a rotating pair between the upper guide rail support plate A (28) and the upper surface of the upper frame (1). The supporting plate A (28) and the upper guide rail supporting plate B (66) can bear part of the force in the vertical direction. There is also a small upper frame groove (63) in the middle of the upper frame large groove (62). The internal gear (42) of the upper frame groove is placed in the small groove of the frame, which meshes with the upper guide rail end gear (56) at the end of the upper guide rail (3), and the lower part is the lower guide rail end gear (56) at the end of the lower guide rail (21). 55) meshes with the internal gear (45) in the ring frame groove in the ring frame (9), in which 3 outer slider claws (73) protrude from the outside of the ring frame (9), and mesh with the groove in the frame column (5). The grooves match the same as the upper part. There is also a large groove of the ring frame (64) in the ring frame (9). Both ends of the lower guide rail (21) are stuck in the large groove of the ring frame (64). When rotating, the lower guide rail (21) 21) It can slide in the large groove (64) of the ring frame. There is also a small groove (65) of the ring frame in the middle of the large groove (64) of the ring frame. The internal gear of the ring frame is placed in the small groove (65) of the ring frame. (45), meshing with the lower guide rail end gear (55) at the end of the lower guide rail (21), the upper guide rail end gear (56) and the lower guide rail end gear (55) are both driven by the θ motor (24), and the θ motor (24) It is fixed by the θ motor support frame (6) and the θ motor support frame pillar (25). The upper end is the θ motor support frame (6) fixed on the upper guide rail (3), and the lower end is the θ motor support frame pillar (25). Fixed on the lower guide rail (21), the lower end of the θ motor support frame (6) is also designed with a sleeve, so that the lower end of the θ motor support frame (6) is sleeved on the θ motor support frame pillar (25), and the θ motor (24 ) uses a θ motor linkage long spline (26) to drive the lower guide rail end gear (55). The linkage of the upper guide rail (3) and the lower guide rail (21) makes the upper guide rail (3) and the lower guide rail (21) synchronize at the same time. Make a turn. 2. The magnetic drill large hole processing device according to claim 1, characterized in that the drill bit protection device is divided into an upper half and a lower half, and the upper half of the drill bit protection device includes an upper plate of the drill bit protection device. (31), the annular part of the upper plate (31) of the drill bit protection device is fixed on the upper end of the drilling rig spindle (32) through a threaded connection, the extended long plate part is in the form of a sleeve, and the structure of the lower part is: including the lower plate of the drill bit protection device (10), the extended long plate portion of the upper plate (31) of the drill bit protection device is covered by the extended long plate portion of the lower plate (10) of the drill bit protector. A bearing is placed on the lower half of the ring, and rubber is placed on the inner ring of the bearing. ring (39), and the drill bit (22) passes through the center of the rubber ring (39). 3. The magnetic drill large aperture processing device according to claim 1, characterized in that the specific structure of the angle tilt device: the top of the upper frame (1) is fixedly connected to the magnetic drill connecting plate (52), and the magnetic drill connecting plate The upper surface of (52) is fixedly connected to the telescopic sleeve plate (50). The ends of the telescopic sleeve plate (50) are hinged with two hinged collars (47). The two hinged collars (47) are sleeved on the angle tilt frame (46). ), the telescopic plug-in plate (51) and the telescopic sleeve plate (50) are connected in the form of sleeves. The ends of the telescopic plug-in plate (51) are also hinged with two hinged collars (47). The hinge collar (47) is on the two uprights on the other side of the angle tilt machine frame (46). The back side of the hinge collar (47) is the tightening handwheel (48). The hinge collar (47) is on the angle tilt machine. The upright column (53) moves up and down to adjust the inclination angle of the magnetic drill.