Metal door and window lock hole machining tool

Abstract

The invention discloses a metal door and window lock hole machining tool, and belongs to the technical field of door and window machining equipment.The metal door and window lock hole machining tool comprises a lower fixing plate and an upper fixing plate, the lower fixing plate and the upper fixing plate are connected through a distance adjusting mechanism, a positioning plate is installed on the upper fixing plate, and a rotating plate is rotatably installed on the positioning plate; a limiting mechanism is arranged between the positioning plate and the rotating plate, a first cylinder and a second cylinder are fixedly installed on the rotating plate, a drill bit is arranged on the first cylinder and connected with a drilling mechanism, a milling cutter is arranged on the second cylinder and connected with a milling mechanism, and the milling mechanism is connected with a cutting mechanism. A power mechanism is arranged on the rotating plate, and is used for driving the drilling mechanism and the milling mechanism, so that the drill bit and the milling cutter complete the machining of the lock hole; metal doors and windows are machined through the distance adjusting mechanism, the power mechanism, the limiting mechanism, the drill bit and the milling cutter, the structure is simple, and use is convenient.

Description

Technical Field

[0001] The invention belongs to the technical field of door and window processing equipment, and in particular relates to a tool for processing lock holes of metal doors and windows. Background Art

[0002] Currently, traditional methods for machining keyholes in metal doors and windows present numerous challenges. A common approach involves drilling with drilling equipment, followed by milling. This step-by-step approach requires multiple clamping and positioning procedures for the metal doors and windows. During the actual machining process, each clamping inevitably introduces positioning errors. As the number of clampings increases, the cumulative errors increase, severely impacting the machining accuracy of the keyholes and making it difficult to guarantee the quality of the final product. Moreover, multiple clamping operations not only take up a lot of time, but also require operators to have a high level of skills to ensure the accuracy of each clamping position. This undoubtedly increases labor intensity, reduces production efficiency, and increases production costs. Furthermore, traditional machining tooling is limited in functionality and flexibility, making it difficult to adapt to the diverse machining needs of metal doors and windows of varying specifications and shapes. Customized tooling is often required for complex shapes or special sizes, further increasing costs and time. To address these issues, the present invention provides a tool for machining keyholes for metal doors and windows. Summary of the Invention

[0003] In response to the above technical problems, the technical solution adopted by the present invention is: a metal door and window lock hole processing tool, comprising a lower fixed plate and an upper fixed plate, the lower fixed plate and the upper fixed plate are connected by a distance adjustment mechanism, a positioning plate is installed on the upper fixed plate, a rotating plate is rotatably installed on the positioning plate, a limiting mechanism is arranged between the positioning plate and the rotating plate, cylinder one and cylinder two are fixedly installed on the rotating plate, a drill bit is arranged on the cylinder one, the drill bit is connected to the drilling mechanism, a milling cutter is arranged on the cylinder two, the milling cutter is connected to the milling mechanism, and a power mechanism is arranged on the rotating plate, the power mechanism is used to drive the drilling mechanism and the milling mechanism so that the drill bit and the milling cutter complete the processing of the lock hole.

[0004] Furthermore, the distance adjustment mechanism includes a plurality of threaded rods arranged linearly, one end of the threaded rod is rotatably mounted on the upper fixed plate, and the other end is threadedly engaged with the lower fixed plate, and the ends of the plurality of threaded rods close to the upper fixed plate are connected through a belt assembly, one of the threaded rods is fixedly connected to a knob, and the knob is located below the lower fixed plate, and one end of a plurality of return springs is fixedly mounted on the lower fixed plate, and a suction cup is fixedly mounted on the other end of the return spring.

[0005] Furthermore, the power mechanism includes two rotating gears, which are rotatably mounted on the positioning plate. The two rotating gears are connected by a synchronous belt. One of the rotating gears is fixedly connected to the sleeve rod, and the other rotating gear is fixedly connected to the rotating plate. The rotating gear connected to the rotating plate is engaged with the cylindrical gear four. The cylindrical gear four is rotatably mounted on the rotating plate, and the drilling mechanism and the milling mechanism are driven by the cylindrical gear four.

[0006] Furthermore, the drilling mechanism includes a cylindrical gear 1, which is rotatably mounted on a cylinder 1, and the cylindrical gear 1 forms a threaded fit with a threaded groove 1 provided on the drill bit, and the spline groove provided on the drill bit forms a spline fit with the cylinder 1, and the cylindrical gear 1 is meshed with the cylindrical gear 2, and the cylindrical gear 2 is fixedly mounted on the center shaft 1, and the center shaft 1 is rotatably mounted on the cylinder 1, and the center shaft 1 is fixedly connected to the cylindrical gear 3, and when the drill bit is drilling, the cylindrical gear 3 is meshed with the cylindrical gear 4.

[0007] Furthermore, the milling mechanism includes a cylindrical gear eight, which is rotatably installed above the cylinder two, and a spline shaft is fixedly installed coaxially on the cylindrical gear eight, and the spline shaft forms a spline fit with the inner wall of the milling cutter. The milling cutter is provided with a sphere, and the sphere forms a threaded fit with the thread groove three provided on the inner ring of the cylinder two. The cylindrical gear eight is meshed with the cylindrical gear seven, and the cylindrical gear seven is fixedly installed on the center shaft two, and the center shaft two is rotatably installed on the rotating plate, and a cylindrical gear five is fixedly installed on the center shaft two. When the milling cutter performs milling, the cylindrical gear five is meshed with the cylindrical gear four.

[0008] Furthermore, the milling mechanism also includes cylindrical gear six, which is fixedly mounted on the center shaft two, and the cylindrical gear six meshes with the cylindrical gear nine, and the cylindrical gear nine forms a threaded fit with the thread groove two on the cylinder two, and the cylindrical gear nine slides with the connecting frame, and the connecting frame is fixedly connected to the sleeve, and the sleeve sleeve is arranged on the outer ring of the center shaft two, and a rotating disk is rotatably mounted on the sleeve, and the rotating disk forms a spline fit with the center shaft two, and a plurality of meshing teeth arranged in a circumferential manner are provided on the rotating disk, and the rotating disk and the cylindrical gear six are provided with a trapezoidal groove one, and the trapezoidal groove one is arranged on the sleeve, and the trapezoidal groove one slides with the positioning block, and the positioning block is fixedly connected to one end of the return spring two, and the other end of the return spring two is fixedly connected to the cylinder two.

[0009] Furthermore, the milling mechanism also includes two center gears, which are rotatably mounted on a rotating plate, one of which is located directly below the rotating plate, and a hole corresponding to the meshing tooth is provided on the center gear. The two center gears are connected by a synchronous belt 2, and two symmetrically arranged drive racks 1 are provided on the outer side of the synchronous belt 2. The drive rack 1 is connected through a magnetic head. The center gear is located on one side of the cylinder 2, and a guide groove is provided on the other side of the cylinder 2. The guide groove is provided on the rotating plate, and a drive rack 2 is fixedly mounted on the guide groove. When the milling cutter moves to the position of the guide groove, the drive rack 2 engages with the cylindrical gear 10 fixedly mounted on the milling cutter.

[0010] Furthermore, the limiting mechanism includes a plurality of circumferentially arranged blocks, which are connected to the rotating plate through three reset springs. The blocks slide in conjunction with the rectangular grooves on the rotating gears, and two inclined surfaces are provided on the blocks, with a plane provided between the two inclined surfaces. The positioning plate is provided with a slot adapted to the blocks.

[0011] Compared with the prior art, the present invention has the following advantages: (1) the present invention completes the processing of metal doors and windows through a distance adjustment mechanism, a power mechanism, a limit mechanism, a drill bit and a milling cutter, and has a simple structure and is easy to use; (2) after the metal doors and windows are clamped and fixed by the lower fixing plate and the upper fixing plate, the metal doors and windows can be drilled and milled continuously without repeated positioning, thereby improving the processing accuracy; (3) the present invention can complete drilling and milling through one clamping, and can remove burrs and the like through multiple milling, thereby improving the smoothness of the surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a front view of the overall structure of the present invention.

[0013] Figure 2 It is a top view of the overall structure of the present invention.

[0014] Figure 3 Schematic diagram of part of the structure of the present invention Figure 1 .

[0015] Figure 4 for Figure 3 Schematic diagram of the locally enlarged structure at point A in the middle.

[0016] Figure 5 Schematic diagram of part of the structure of the present invention Figure 2 .

[0017] Figure 6 Schematic diagram of part of the structure of the present invention Figure 3 .

[0018] Figure 7 Schematic diagram of part of the structure of the present invention Figure 4 .

[0019] Figure 8 for Figure 7 Schematic diagram of the locally enlarged structure at point B in the middle.

[0020] Figure 9 Schematic diagram of part of the structure of the present invention Figure 5 .

[0021] Figure 10 for Figure 9 Schematic diagram of the partially enlarged structure at point C in the middle.

[0022] Figure 11 Schematic diagram of part of the structure of the present invention Figure 6 .

[0023] Figure 12 Schematic diagram of part of the structure of the present invention Figure 7 .

[0024] Figure 13 for Figure 12 Schematic diagram of the locally enlarged structure at point D in the middle.

[0025] Figure numbers: 1-lower fixed plate; 2-upper fixed plate; 3-suction cup; 4-reset spring 1; 5-knob; 6-threaded rod; 7-belt assembly 1; 8-positioning plate; 9-rotating plate; 10-sleeve rod; 11-synchronous belt 1; 12-rotating gear; 13-cylinder 1; 14-drill bit; 15-cylindrical gear 1; 16-thread groove 1; 17-spline groove; 18-cylindrical gear 2; 19-center shaft 1; 20-cylindrical gear 3; 21-cylindrical gear 4; 22-crank handle; 23-cylindrical gear 5; 24-center shaft 2; 25-cylindrical gear 6; 26-cylindrical gear 7; 27-cylindrical Gear eight; 28-milling cutter; 29-sphere; 30-cylinder two; 31-cylindrical gear nine; 32-thread groove two; 33-arc groove; 34-connecting frame; 35-sleeve; 36-rotating disk; 37-meshing teeth; 38-trapezoidal groove one; 39-positioning block; 40-reset spring two; 41-center gear; 42-synchronous belt two; 43-drive rack one; 44-magnetic head; 45-guide groove; 46-drive rack two; 47-arc hole; 48-rectangular hole; 49-block; 50-reset spring three; 51-inclined surface; 52-plane; 53-rectangular groove; 54-cylindrical gear ten. DETAILED DESCRIPTION

[0026] To facilitate understanding of the present invention, the present invention is described in more detail below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly attached to the other element, or one or more elements can be interposed therebetween. When an element is described as being "connected to" another element, it can be directly connected to the other element, or one or more elements can be interposed therebetween. The terms "vertical," "horizontal," "left," "right," "inner," "outer," and similar expressions used in this specification are for illustrative purposes only. In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating relative importance or implicitly specifying the number of technical features indicated. Therefore, unless otherwise specified, features specified as "first" or "second" may explicitly or implicitly include one or more of such features; "plurality" means two or more. The term "comprising" and any variations thereof are intended to be non-exclusive, and one or more other features, integers, steps, operations, units, components, and / or combinations thereof may be present or added.

[0027] Example: Figure 1 — Figure 13 The shown tooling for processing lock holes for metal doors and windows includes a lower fixed plate 1 and an upper fixed plate 2, which are connected by a distance adjustment mechanism. A positioning plate 8 is installed on the upper fixed plate 2, and a rotating plate 9 is rotatably installed on the positioning plate 8. A limiting mechanism is provided between the positioning plate 8 and the rotating plate 9. Cylinder 1 13 and cylinder 2 30 are fixedly installed on the rotating plate 9, a drill bit 14 is provided on cylinder 13, and the drill bit 14 is connected to the drilling mechanism, a milling cutter 28 is provided on cylinder 2 30, and the milling cutter 28 is connected to the milling mechanism, and a power mechanism is provided on the rotating plate 9, which is used to drive the drilling mechanism and the milling mechanism so that the drill bit 14 and the milling cutter 28 complete the processing of the lock hole.

[0028] The distance adjustment mechanism includes a plurality of threaded rods 6 arranged in a linear manner, one end of the threaded rod 6 is rotatably mounted on the upper fixed plate 2, and the other end is threadedly engaged with the lower fixed plate 1, and the ends of the plurality of threaded rods 6 close to the upper fixed plate 2 are connected through a belt assembly 7, one of the threaded rods 6 is fixedly connected to the knob 5, and the knob 5 is located below the lower fixed plate 1, and one end of a plurality of return springs 4 is fixedly mounted on the lower fixed plate 1, and a suction cup 3 is fixedly mounted on the other end of the return spring 4.

[0029] like Figure 1 、 Figure 3 As shown, when processing the lock holes of metal doors and windows, the metal doors and windows to be processed are placed between the lower fixing plate 1 and the upper fixing plate 2, and the positions to be processed are aligned with the arc hole 47 and the rectangular hole 48.

[0030] Manually turning knob 5 causes the knob 5 to rotate the threaded rod 6 connected to it. The rotating threaded rod 6 then drives the other threaded rods 6 to rotate together via belt assembly 17. At this point, lower fixing plate 1, which is in sliding engagement with upper fixing plate 2, moves toward the side closer to upper fixing plate 2. At this point, lower fixing plate 1 approaches upper fixing plate 2, clamping the metal door or window between lower and upper fixing plates 1 and 2. During this process, suction cup 3 and return spring 1 4 act as a buffer. This embodiment can accommodate metal doors and windows of varying thicknesses by simply flexibly adjusting the distance between lower fixing plate 1 and upper fixing plate 2.

[0031] As a preferred embodiment of the present invention, a plurality of suction cups 3 may be provided on the upper fixing plate 2 , and the suction cups 3 on the upper fixing plate 2 and the suction cups 3 on the lower fixing plate 1 may correspond one to one, thereby improving the caching effect.

[0032] Those skilled in the art will know that arc holes 47 and rectangular holes 48 are provided on the positioning plate 8 , the upper fixing plate 2 and the lower fixing plate 1 , and the arc holes 47 and rectangular holes 48 are combined to form a shape to be processed.

[0033] The power mechanism includes two rotating gears 12, which are rotatably mounted on the positioning plate 8. The two rotating gears 12 are connected by a synchronous belt 11. One of the rotating gears 12 is fixedly connected to the sleeve rod 10, and the other rotating gear 12 is fixedly connected to the rotating plate 9. The rotating gear 12 connected to the rotating plate 9 is engaged with the cylindrical gear 4 21, and the cylindrical gear 4 21 is rotatably mounted on the rotating plate 9. The drilling mechanism and the milling mechanism are driven by the cylindrical gear 4 21.

[0034] like Figure 1 、 Figure 2 、 Figure 5 、 Figure 7 、 Figure 8 As shown, during the processing, power is provided by a power mechanism.

[0035] Specifically, by rotating the sleeve rod 10, the rotating gear 12 fixedly connected to the sleeve rod 10 rotates. This rotating rotating gear 12 drives the synchronous belt 11 to rotate, and the synchronous belt 11 drives the other rotating gear 12 to rotate. At this time, the two rotating gears 12 rotate on the positioning plate 8. The cylindrical gear 4 21 meshing with the rotating gear 12 will rotate, and the rotating cylindrical gear 4 21 can drive the cylindrical gear 3 20 or the cylindrical gear 5 23 to rotate.

[0036] The drilling mechanism includes a cylindrical gear 15, which is rotatably mounted on the cylinder 13. The cylindrical gear 15 and the thread groove 16 provided on the drill bit 14 form a threaded fit, and the spline groove 17 provided on the drill bit 14 forms a spline fit with the cylinder 13. The cylindrical gear 15 is meshed with the cylindrical gear 2 18. The cylindrical gear 2 18 is fixedly mounted on the center shaft 19, and the center shaft 19 is rotatably mounted on the cylinder 13. The center shaft 19 is fixedly connected to the cylindrical gear 3 20. When the drill bit 14 is drilling, the cylindrical gear 3 20 is meshed with the cylindrical gear 4 21.

[0037] like Figure 1 、 Figure 2 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 As shown, when cylindrical gear three 20 is engaged with cylindrical gear four 21, the rotating cylindrical gear four 21 will drive cylindrical gear three 20 to rotate together.

[0038] Since cylindrical gear three 20 is fixedly connected to center shaft one 19, center shaft one 19 and cylindrical gear two 18 fixedly mounted on center shaft one 19 will rotate together on cylinder one 13. Cylindrical gear two 18 is meshed with cylindrical gear one 15, so cylindrical gear one 15 will rotate. The rotating cylindrical gear one 15 will drive the drill bit 14 to rotate through the thread groove one 16, and the spline groove 17 forms a spline fit with cylinder one 13, so the drill bit 14 will move vertically toward the side close to the lower fixed plate 1 during the rotation process. When the bottom of the drill bit 14 contacts the metal doors and windows, it will drill holes in the surface of the doors and windows, thereby generating circular arc holes 47.

[0039] In this embodiment, those skilled in the art will appreciate that the end of the drill bit 14 used for drilling can be configured to be conical, thereby improving the efficiency of drilling. After drilling is completed, the sleeve rod 10 can be driven by the rotating gear 12 on the sleeve rod 10 to reverse, thereby resetting the drill bit 14.

[0040] The milling mechanism includes a cylindrical gear eight 27, which is rotatably mounted above the cylinder two 30. A spline shaft is fixedly mounted coaxially on the cylindrical gear eight 27, and the spline shaft forms a spline fit with the inner wall of the milling cutter 28. The milling cutter 28 is provided with a sphere 29, and the sphere 29 forms a threaded fit with the thread groove three provided on the inner ring of the cylinder two 30. The cylindrical gear eight 27 is meshed with the cylindrical gear seven 26. The cylindrical gear seven 26 is fixedly mounted on the center shaft two 24, and the center shaft two 24 is rotatably mounted on the rotating plate 9, and a cylindrical gear five 23 is fixedly mounted on the center shaft two 24. When the milling cutter 28 performs milling, the cylindrical gear five 23 meshes with the cylindrical gear four 21.

[0041] like Figure 1 、 Figure 2 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 9 、 Figure 10 、 Figure 11 、 Figure 12 As shown, after the drill bit 14 completes drilling, you can hold the crank 22 fixedly mounted on the rotating plate 9, and then rotate the rotating plate 9 on the positioning plate 8, so that the drill bit 14 leaves the top of the arc hole 47, and at the same time rotate the milling cutter 28 to a position opposite to the rectangular hole 48.

[0042] For those skilled in the art, since a limiting mechanism is provided between the positioning plate 8 and the rotating plate 9 , the positioning plate 8 and the rotating plate 9 will not rotate relative to each other without applying an external force.

[0043] After the milling cutter 28 rotates to a position opposite to the rectangular hole 48, the cylindrical gear three 20 leaves the cylindrical gear four 21, and the cylindrical gear five 23 rotates to a position engaged with the cylindrical gear four 21. At this time, the rotating cylindrical gear four 21 will drive the cylindrical gear five 23 to rotate.

[0044] When cylindrical gear 5 23 rotates, it drives central shaft 2 24 to rotate, and cylindrical gear 6 25 and cylindrical gear 7 26, which are fixed to central shaft 2 24, also rotate. During the rotation of cylindrical gear 7 26, cylindrical gear 7 26 drives cylindrical gear 8 27 and the spline shaft on cylindrical gear 8 27 to rotate. At this time, the milling cutter 28, which forms a splined fit with the spline shaft, rotates. The ball 29 on the milling cutter 28 mates with the thread groove 3, so as the milling cutter 28 rotates, it moves downward along the spline shaft, gradually approaching the lower fixed plate 1. When cylindrical gear 10 54, which is fixed above the milling cutter 28, descends to the upper edge of the arcuate groove 33, the spline shaft and the milling cutter 28 disengage.

[0045] The milling mechanism also includes a cylindrical gear six 25, which is fixedly mounted on the center shaft two 24, and the cylindrical gear six 25 meshes with the cylindrical gear nine 31. The cylindrical gear nine 31 forms a threaded fit with the thread groove two 32 on the cylinder two 30, and the cylindrical gear nine 31 slides with the connecting frame 34. The connecting frame 34 is fixedly connected to the sleeve 35, and the sleeve 35 is sleeved on the outer ring of the center shaft two 24. A rotating disk 36 is rotatably mounted on the sleeve 35, and the rotating disk 36 forms a spline fit with the center shaft two 24. The rotating disk 36 is provided with a plurality of meshing teeth 37 arranged in a circumferential manner. The rotating disk 36 and the cylindrical gear six 25 are provided with a trapezoidal groove one 38, which is provided on the sleeve 35. The trapezoidal groove one 38 slides with the positioning block 39, and the positioning block 39 is fixedly connected to one end of the return spring two 40, and the other end of the return spring two 40 is fixedly connected to the cylinder two 30.

[0046] The milling mechanism also includes two center gears 41, which are rotatably mounted on the rotating plate 9. One of the center gears 41 is located directly below the rotating disk 36. The center gear 41 is provided with a hole corresponding to the meshing tooth 37. The two center gears 41 are connected by a synchronous belt 2 42. Two symmetrically arranged drive racks 1 43 are provided on the outer side of the synchronous belt 2 42. The drive rack 1 43 is connected through a magnetic head 44. The center gear 41 is located on one side of the cylinder 2 30. A guide groove 45 is provided on the other side of the cylinder 2 30. The guide groove 45 is provided on the rotating plate 9. A drive rack 2 46 is fixedly mounted on the guide groove 45. When the milling cutter 28 moves to the position of the guide groove 45, the drive rack 2 46 engages with the cylindrical gear 10 54 fixedly mounted on the milling cutter 28.

[0047] like Figure 1 、 Figure 2 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 9 、 Figure 10 、 Figure 11 、 Figure 12 、 Figure 13 As shown, as cylindrical gear six (25) rotates, cylindrical gear nine (31), which meshes with cylindrical gear six (25), rotates. As cylindrical gear nine (31) rotates, it gradually descends along threaded groove two (32). As cylindrical gear nine (31) descends, connecting frame 34 drives sleeve 35 downward, causing positioning block 39 to slide out of trapezoidal groove one (38). Trapezoidal groove one (38) and positioning block 39 function to prevent connecting frame 34 from moving downward under gravity unless subjected to external forces. However, as cylindrical gear nine (31) moves downward, it exerts a downward force on connecting frame 34, allowing it to move.

[0048] During the downward movement of the sleeve 35, the rotating disk 36 rotatably installed below the sleeve 35 will slide downward along the central axis 24 until the meshing teeth 37 on the rotating disk 36 are respectively inserted into the holes of the central gear 41, and the cylindrical gear 9 31 no longer moves downward.

[0049] At this point, the rotating cylindrical gear 5 23 drives the center shaft 2 24 to rotate. The center shaft 2 24 is splined with the cylindrical gear 7 26, so the cylindrical gear 7 26 rotates. However, the cylindrical gear 7 26 rotates with the sleeve 35, so the sleeve 35 does not rotate. The rotating center gear 41 drives the synchronous belt 2 42, which meshes with the center gear 41, to rotate. The two center gears 41 are connected by the synchronous belt 2 42. The rotating synchronous belt 2 42 drives the drive rack 1 43, which meshes with the synchronous belt 2 42, to slide along the rotating plate 9. In other words, the drive rack 1 43 drives the magnetic head 44 to slide along the rotating plate 9 toward the side of the cylinder 2 30.

[0050] When the magnetic head 44 is inserted into the arc groove 33, the magnetic head 44 contacts the bottom of the cylindrical gear 10 54 and pushes the milling cutter 28 through the magnetic head 44, so that the milling cutter 28 comes out of the cylinder 2 30 and moves to the area where the guide groove 45 is located.

[0051] After the milling cutter 28 enters the guide groove 45 area, the driving rack 2 46 fixedly installed on the guide groove 45 will engage with the cylindrical gear 10 54, and during the movement of the cylindrical gear 10 54, the cylindrical gear 10 54 will drive the milling cutter 28 to rotate. At this time, the milling cutter 28 rotates during the horizontal movement, thereby milling the shape of the arc hole 47 on the metal doors and windows.

[0052] Those skilled in the art will appreciate that if the milling cutter 28 fails to achieve the desired smoothness on the metal door or window after machining, the milling cutter 28 can be moved back and forth multiple times. Furthermore, the magnetic head 44 and the contact area between the magnetic head 44 and the milling cutter 28 are made of magnetic material. This prevents the milling cutter 28 from falling off the magnetic head 44 when the magnetic head 44 drives the milling cutter 28 toward the side of the cylinder 2 30.

[0053] The limiting mechanism includes a plurality of circumferentially arranged blocks 49, which are connected to the rotating plate 9 via a return spring 50. The blocks 49 slide in cooperation with the rectangular groove 53 on the rotating gear 12, and two inclined surfaces 51 are provided on the blocks 49, with a plane 52 provided between the two inclined surfaces 51, and a slot adapted to the blocks 49 is provided on the positioning plate 8.

[0054] like Figure 4 、 Figure 8 As shown, in the initial state, the inclined surface 51 and the flat surface 52 are both located below the slot, because the positioning plate 8 and the rotating plate 9 cannot rotate relative to each other.

[0055] When external force is applied to drive the rotating plate 9 to rotate, the rotating plate 9 will drive the block 49 to move. Since the block 49 is provided with an inclined surface 51, the block 49 can move by the relative sliding of the inclined surface 51 and the slot. The function of the reset spring 50 is to push the inclined surface 51 on the block 49 to the bottom of the slot again after the rotating plate 9 completes the rotation to complete the limit.

[0056] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Under the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above. For the sake of simplicity, they are not provided in detail. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field should understand that it is still possible to modify the technical solutions described in the above embodiments, or to make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A metal door and window lock hole processing tool, characterized in that: The invention comprises a lower fixed plate (1) and an upper fixed plate (2), wherein the lower fixed plate (1) and the upper fixed plate (2) are connected via a distance adjustment mechanism, a positioning plate (8) is installed on the upper fixed plate (2), a rotating plate (9) is rotatably installed on the positioning plate (8), a limiting mechanism is provided between the positioning plate (8) and the rotating plate (9), a cylinder 1 (13) and a cylinder 2 (30) are fixedly installed on the rotating plate (9), a drill bit (14) is provided on the cylinder 1 (13), the drill bit (14) is connected to the drilling mechanism, a milling cutter (28) is provided on the cylinder 2 (30), the milling cutter (28) is connected to the milling mechanism, and a power mechanism is provided on the rotating plate (9), the power mechanism is used to drive the drilling mechanism and the milling mechanism so that the drill bit (14) and the milling cutter (28) complete the processing of the lock hole.

2. A metal door and window lock hole processing tool as claimed in claim 1, characterized in that: The distance adjustment mechanism comprises a plurality of threaded rods (6) arranged in a linear manner, one end of the threaded rod (6) is rotatably mounted on the upper fixed plate (2), and the other end is threadably engaged with the lower fixed plate (1), and the ends of the plurality of threaded rods (6) close to the upper fixed plate (2) are connected via a belt assembly (7), one of the threaded rods (6) is fixedly connected to a knob (5), and the knob (5) is located below the lower fixed plate (1), and one end of a plurality of return springs (4) is fixedly mounted on the lower fixed plate (1), and a suction cup (3) is fixedly mounted on the other end of the return spring (4).

3. A metal door and window lock hole processing tool as claimed in claim 2, characterized in that: The power mechanism includes two rotating gears (12), the rotating gears (12) are rotatably mounted on the positioning plate (8), the two rotating gears (12) are connected through a synchronous belt (11), one of the rotating gears (12) is fixedly connected to the sleeve rod (10), and the other rotating gear (12) is fixedly connected to the rotating plate (9), the rotating gear (12) connected to the rotating plate (9) is meshed with the cylindrical gear (21), the cylindrical gear (21) is rotatably mounted on the rotating plate (9), and the drilling mechanism and the milling mechanism are driven by the cylindrical gear (21).

4. A metal door and window lock hole processing tool as claimed in claim 3, characterized in that: The drilling mechanism includes a cylindrical gear (15), the cylindrical gear (15) is rotatably mounted on the cylinder (13), the cylindrical gear (15) and the thread groove (16) provided on the drill bit (14) form a threaded fit, and the spline groove (17) provided on the drill bit (14) forms a spline fit with the cylinder (13), the cylindrical gear (15) is meshed with the cylindrical gear (2) (18), the cylindrical gear (2) (18) is fixedly mounted on the center shaft (19), the center shaft (19) is rotatably mounted on the cylinder (13), the center shaft (19) is fixedly connected to the cylindrical gear (3) (20), and when the drill bit (14) is drilling, the cylindrical gear (3) (20) is meshed with the cylindrical gear (4) (21).

5. A metal door and window lock hole processing tool as claimed in claim 4, characterized in that: The milling mechanism includes cylindrical gear eight (27), cylindrical gear eight (27) is rotatably mounted above cylinder two (30), a spline shaft is fixedly mounted on the cylindrical gear eight (27) coaxially, the spline shaft forms a spline fit with the inner wall of the milling cutter (28), a sphere (29) is provided on the milling cutter (28), the sphere (29) forms a thread fit with the thread groove three provided on the inner ring of cylinder two (30), cylindrical gear eight (27) meshes with cylindrical gear seven (26), cylindrical gear seven (26) is fixedly mounted on center shaft two (24), center shaft two (24) is rotatably mounted on the rotating plate (9), and cylindrical gear five (23) is fixedly mounted on center shaft two (24), when the milling cutter (28) performs milling, cylindrical gear five (23) meshes with cylindrical gear four (21).

6. A metal door and window lock hole processing tool as claimed in claim 5, characterized in that: The milling mechanism further comprises cylindrical gear six (25), the cylindrical gear six (25) being fixedly mounted on the center shaft two (24), the cylindrical gear six (25) being meshed with cylindrical gear nine (31), the cylindrical gear nine (31) being threadedly engaged with the thread groove two (32) on the cylinder two (30), the cylindrical gear nine (31) being slidably engaged with the connecting frame (34), the connecting frame (34) being fixedly connected with the sleeve (35), the sleeve (35) being sleeved on the outer ring of the center shaft two (24), and the sleeve (35) being rotatably mounted with a A rotating disk (36), wherein the rotating disk (36) forms a spline fit with the center shaft 2 (24), and the rotating disk (36) is provided with a plurality of meshing teeth (37) arranged in a circumferential manner, and the rotating disk (36) and the cylindrical gear 6 (25) are provided with a trapezoidal groove 1 (38), and the trapezoidal groove 1 (38) is provided on the sleeve (35), and the trapezoidal groove 1 (38) is slidably fitted with the positioning block (39), and the positioning block (39) is fixedly connected to one end of the return spring 2 (40), and the other end of the return spring 2 (40) is fixedly connected to the cylinder 2 (30).

7. A metal door and window lock hole processing tool as claimed in claim 6, characterized in that: The milling mechanism further comprises two center gears (41), which are rotatably mounted on the rotating plate (9), one of the center gears (41) being located directly below the rotating disk (36), and a hole corresponding to the meshing tooth (37) being provided on the center gear (41), and the two center gears (41) being connected via a synchronous belt (42), and two symmetrically arranged drive racks (43) being provided on the outer side of the synchronous belt (42), and the drive racks (43) being connected via a magnetic head (44), and the center gear (41) being located on one side of the cylinder (30), and a guide groove (45) being provided on the other side of the cylinder (30), and the guide groove (45) being provided on the rotating plate (9), and the drive rack (46) being fixedly mounted on the guide groove (45), and when the milling cutter (28) moves to the position where the guide groove (45) is located, the drive rack (46) is meshed with the cylindrical gear (54) fixedly mounted on the milling cutter (28).

8. The metal door and window lock hole processing tool as claimed in claim 7, characterized in that: The limiting mechanism includes a plurality of circumferentially arranged clamping blocks (49), the clamping blocks (49) are connected to the rotating plate (9) via a third return spring (50), the clamping blocks (49) are slidably engaged with a rectangular groove (53) on the rotating gear (12), and two inclined surfaces (51) are provided on the clamping blocks (49), a plane (52) is provided between the two inclined surfaces (51), and a clamping groove adapted to the clamping blocks (49) is provided on the positioning plate (8).

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