Hardware hole milling device

Abstract

The invention relates to the technical field of machining, and discloses a hardware hole milling device which comprises an operation table and a drilling assembly arranged above the operation table, the drilling assembly comprises a first motor, a first air pressure rod, a first transmission wheel, a second transmission wheel and a moving plate, and the moving plate is arranged above the operation table. The first motor is slidably connected into the moving plate. Through the arrangement of a first air pressure rod, a second air pressure rod and a hollow ring, when the equipment drills small holes, air in the second air pressure rod enters the first air pressure rod, and the transmission ratio of a first motor to a second transmission wheel is increased after the first air pressure rod extends, so that the rotation speed of the second transmission wheel is increased, and the rotation speed of a drill bit during small hole drilling is increased; when small holes are drilled in the hardware, the hardware can be efficiently drilled under the combined action of rotation and revolution of the drill bit, and the drill bit rotating at a high speed can grind burrs, generated due to drilling, on the surface of the hardware at a high speed.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical processing, in particular to a hardware hole milling device. Background Art

[0002] Hardware products are important auxiliary and accessory products in daily life and industrial production, covering tool hardware, construction hardware, daily hardware and other fields. With the rapid development of China's economy and the continuous breakthroughs in high-tech in the aluminum processing industry, the hardware industry has an adequate supply of raw materials, providing a solid foundation for the development of the industry.

[0003] During the installation process, the hardware needs to be connected with other parts by drilling. During the drilling process, the cutting tool revolves around the rotating shaft on the surface of the hardware, and by adjusting the distance between the cutting tool and the rotating shaft, different holes can be opened on the surface of the hardware. However, during the milling process, the cutting knife cutting on the surface of the hardware will cause burrs around the milling holes of the hardware, making the edges of the milling holes rough, and the friction between the cutting knife and the surface of the hardware will increase. When facing hard hardware, the rotating shaft needs to release a large torque to enable the cutting tool to cut on the hardware, which increases the load of the motor when milling holes;

[0004] Because most hardware parts are irregular in shape, after the clamps clamp the hardware, the hardware will become loose between the clamps due to the placement angle problem before it can achieve a stable effect. If the clamps are not re-clamped in time after the hardware becomes loose, the hardware will cause centrifugal rotation during the milling process, posing a safety hazard to surrounding workers.

[0005] Therefore, a hardware hole milling device is proposed. Summary of the invention

[0006] The purpose of the present invention is to provide a hardware milling device to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a hardware milling device, comprising an operating table and a drilling assembly arranged above the operating table, the drilling assembly comprising a first motor, a first pneumatic rod, a first transmission wheel, a second transmission wheel and a movable plate, the movable plate is arranged above the operating table, the first motor is slidably connected to the inside of the movable plate, the first pneumatic rods are distributed in an annular array and are fixedly connected to the outer wall of the output shaft of the first motor, the first transmission wheel is fixedly connected to one end of the first pneumatic rod away from the first motor, a dust cover is fixedly connected to the bottom of the first motor, and the A base plate is rotatably connected to the bottom of the dust cover, a first slide plate is slidably connected to the inside of the base plate, a drill bit is rotatably connected to the inside of the first slide plate, the second transmission wheel is fixedly connected to the top of the drill bit, the second transmission wheel and the outer wall of the first transmission wheel are transmission-connected with a transmission belt, the outer wall of the first motor is rotatably connected to a hollow ring, the top of the second transmission wheel is rotatably connected to a second pneumatic rod, one end of the second pneumatic rod away from the second transmission wheel is fixedly connected to the inside of the hollow ring, the hollow ring is connected to the inside of the first pneumatic rod, and a differential plate is rotatably connected between the first motor and the base plate.

[0008] Preferably, a fixing assembly is provided inside the operating table, and a movable frame is symmetrically fixedly connected to the upper surface of the operating table, and the movable plate is slidably connected between the two movable frames.

[0009] Preferably, the fixing assembly includes a clamping mechanism, which includes a gear ring, a second motor, a slide groove and an arc-shaped gear plate, the second motor is fixedly connected to the lower surface of the operating table, the slide groove is opened on the output shaft of the second motor, the interior of the slide groove is symmetrically fixedly connected with a first spring, the arc-shaped gear plate is fixedly connected to an end of the slide groove away from the output shaft of the second motor, the arc-shaped gear plate is slidably connected to the interior of the output shaft of the second motor, the top of the output shaft of the second motor is rotatably connected with a turntable, the bottom of the turntable is fixedly connected with a sleeve, the gear rings are distributed in an annular array and are fixedly connected to the inner cavity of the sleeve, the sleeve is rotatably connected to the interior of the operating table, the arc-shaped gear plate is meshed with the gear ring, and the top of the turntable is fixedly connected with a carrier plate.

[0010] Preferably, the fixing assembly also includes an anti-loosening mechanism, which includes a clamp, a special-shaped hollow tube, a ring plate, a special-shaped round rod and a round plate, the clamp is symmetrically slidably connected to the inside of the carrier plate, the two sides of the carrier plate are slidably connected to the electric telescopic rod, the outer wall of the carrier plate is symmetrically fixedly connected to the limited position bin, the telescopic end of the electric telescopic rod is fixedly connected to the second slide plate, the second slide plate slides in the inner cavity of the limit bin, the second slide plate is fixedly connected to the special-shaped round rod on the side away from the electric telescopic rod, the inside of the clamp is slidably connected to the first slide bar, the bottom of the first slide bar is fixedly connected to the second spring connected to the bottom of the inner cavity of the clamp, a trapezoidal groove is provided inside the first slide bar, and the special-shaped round rod is close to the clamp One end of the special-shaped hollow tube is slidably connected to the interior of the trapezoidal groove, the special-shaped hollow tube is fixedly connected to a side of the clamp close to the electric telescopic rod, the special-shaped round rod is slidably connected to the interior of the special-shaped hollow tube, and the side of the interior of the special-shaped hollow tube close to the second slide plate is slidably connected with a second sliding rod in a ring array, the ring plate is fixedly connected to an end of the second sliding rod away from the second slide plate, and the ring plate slides in the inner cavity of the limit bin, the circular plate and the special-shaped hollow tube are fixedly connected with a third spring, the interior of the clamp is slidably connected with the second slide plate, the second slide plate and the interior of the clamp are fixedly connected with a fourth spring, the top of the second slide plate is slidably connected with a pressure plate, and the side of the special-shaped hollow tube close to the ring plate is fixedly connected with a pressure sensor.

[0011] Preferably, the trapezoidal groove is wide at the top and narrow at the bottom, and one end of the special-shaped round rod close to the first sliding rod is fitted to the bottom of the trapezoidal groove.

[0012] Preferably, the pressure sensor controls the extension and retraction of the electric telescopic rod through a controller arranged inside the limit bin, the bottoms of the opposite sides of the two pressure plates are set as arc surfaces, the top of the first slide rod is set as an inclined surface, and the second slide plate is clamped with the first slide rod.

[0013] Preferably, the differential plate enables the output end of the first motor and the base plate to rotate in the same direction at a differential speed.

[0014] Preferably, the side where the circular plate and the special-shaped hollow tube are close to each other forms a closed space inside the limiting bin, and the annular plate fits and slides inside the special-shaped hollow tube.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. Through the arrangement of the first pneumatic rod, the second pneumatic rod and the hollow ring, when the equipment drills a small hole, the gas inside the second pneumatic rod enters into the first pneumatic rod. After the first pneumatic rod is extended, the transmission ratio of the first motor and the second transmission wheel is increased, thereby increasing the speed of the second transmission wheel rotation, and increasing the rotation speed of the drill bit when drilling a small hole, so that when drilling a small hole, the hardware can be efficiently drilled by the combined effect of the self-rotation and revolution of the drill bit. The high-speed rotating drill bit can grind the burrs on the surface of the hardware caused by drilling at a high speed, thereby reducing the debris generated by milling holes, and avoiding the wear of the hardware surface by the revolution of the drill bit when the debris adheres to the surface of the hardware, while improving the milling efficiency, the burrs on the edge of the hole can be polished smooth, making the surface of the milled hole of the hardware smooth and flat.

[0017] 2. Under the action of the centrifugal force generated by the rotation of the output shaft of the second motor, the arc-shaped toothed plate will mesh with the gear ring and cause the hardware to rotate on the carrier plate. When the milling hole position of the hardware deviates and needs to stop rotating in time, the staff turns off the second motor, and the centrifugal force on the arc-shaped toothed plate is reduced and is pulled by the first spring until it is no longer meshed with the gear ring, so that the output shaft of the second motor no longer transmits the transmission to the carrier plate, reducing the inertia of the carrier plate when it stops rotating, shortening the time required for the carrier plate to stop rotating, and allowing the staff to adjust the hardware in time.

[0018] 3. After the clamp is clamped to the hardware frame by the electric telescopic rod contracting, the electric telescopic rod continues to contract and forms a negative pressure in the closed space between the circular plate and the special-shaped hollow tube, thereby achieving the secondary clamping function of the clamp to the hardware. When the hardware is not completely clamped between the clamps due to the placement angle problem, the shaking of the hardware will cause the clamp and the hardware to loosen. The negative pressure between the circular plate and the special-shaped hollow tube will pull the clamp to further contract, so that the clamp is further relatively close and clamps the hardware, thereby ensuring that the clamp holds the hardware firmly when the hardware is milling holes. When the clamp shakes, the first slide bar slides downward, so that the pressure plate can quickly press the hardware, so that the hardware will not be thrown out of the operating table due to the centrifugal force during rotation when milling holes, causing harm to the surrounding staff, thereby improving the safety of equipment use. At the same time, the pressing of the pressure plate on the hardware can reset the offset hardware, so that the hardware is restored to a state of being stably supported by the clamp, thereby improving the continuity of the milling hole work. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a front view schematic diagram of the overall structure of the present invention;

[0021] Figure 3 It is an overall schematic diagram of the fixing assembly structure of the present invention;

[0022] Figure 4 It is a schematic cross-sectional view of the overall structure of the present invention;

[0023] Figure 5 It is a schematic cross-sectional view of the drilling assembly structure of the present invention;

[0024] Figure 6 It is a partial cross-sectional schematic diagram of the drilling assembly structure of the present invention;

[0025] Figure 7 It is an exploded schematic diagram of the clamping mechanism structure of the present invention;

[0026] Figure 8 It is a schematic cross-sectional view of the anti-loosening mechanism structure of the present invention;

[0027] Fig. 9 For the present invention Figure 8 A schematic diagram of the structure enlargement in the middle;

[0028] Fig.10 It is a schematic diagram of the interior of the clamp structure of the present invention.

[0029] In the figure:

[0030] 1. Operation table; 2. Mobile rack;

[0031] 3. Drilling assembly;

[0032] 31. first motor; 32. first gas pressure rod; 33. first transmission wheel; 34. second transmission wheel; 35. second gas pressure rod; 36. hollow ring; 37. differential plate; 38. bottom plate; 39. dust cover; 310. first slide plate; 311. drill bit; 312. moving plate; 313. transmission belt;

[0033] 4. Fix the components;

[0034] 41. Clamping mechanism; 411. Rotating plate; 412. Sleeve; 413. Gear ring; 414. Second motor; 415. Sliding groove; 416. Arc-shaped gear plate; 417. First spring; 418. Carrier plate;

[0035] 42. Anti-loosening mechanism; 421. Clamp; 422. First slide bar; 423. Second spring; 424. Trapezoidal groove; 425. Limiting bin; 426. Electric telescopic rod; 427. Special-shaped hollow tube; 428. Ring plate; 429. Second slide bar; 4210. Third spring; 4211. Special-shaped round rod; 4212. Second slide plate; 4213. Fourth spring; 4214. Pressing plate; 4215. Round plate; 4216. Pressure sensor. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Embodiments of the present invention

[0038] See also Figures 1 to 6 A hardware milling device includes an operating table 1 and a drilling assembly 3 arranged above the operating table 1, the drilling assembly 3 includes a first motor 31, a first pneumatic rod 32, a first transmission wheel 33, a second transmission wheel 34 and a moving plate 312, the moving plate 312 is arranged above the operating table 1, the first motor 31 is slidably connected to the inside of the moving plate 312, the first pneumatic rod 32 is distributed in an annular array and fixedly connected to the outer wall of the output shaft of the first motor 31, the first transmission wheel 33 is fixedly connected to one end of the first pneumatic rod 32 away from the first motor 31, a dust cover 39 is fixedly connected below the first motor 31, and a bottom is rotatably connected below the dust cover 39. The bottom plate 38 is provided with a first slide plate 310 which is slidably connected to the inside of the bottom plate 38, a drill bit 311 is rotatably connected to the inside of the first slide plate 310, a second transmission wheel 34 is fixedly connected to the top of the drill bit 311, a transmission belt 313 is rotatably connected to the outer walls of the second transmission wheel 34 and the first transmission wheel 33, a hollow ring 36 is rotatably connected to the outer wall of the first motor 31, a second pneumatic rod 35 is rotatably connected to the top of the second transmission wheel 34, an end of the second pneumatic rod 35 away from the second transmission wheel 34 is fixedly connected to the inside of the hollow ring 36, the hollow ring 36 is connected to the inside of the first pneumatic rod 32, and a differential plate 37 is rotatably connected between the first motor 31 and the bottom plate 38.

[0039] Working principle:

[0040] The operator starts the first motor 31. After the first motor 31 is started, its output end starts to rotate. When the first motor 31 rotates, it drives the first transmission wheel 33 to rotate together through the first gas pressure rod 32. During the revolution of the first transmission wheel 33, it drives the second transmission wheel 34 to rotate together through the transmission belt 313. After the second transmission wheel 34 rotates, it drives the drill bit 311 fixed below it to rotate together, so that the second transmission wheel 34 rotates inside the bottom plate 38.

[0041] When the first motor 31 rotates, the bottom plate 38 is driven to rotate together through the differential plate 37. The bottom plate 38 is affected by the deceleration effect of the differential plate 37 during transmission, so that when the bottom plate 38 rotates, it drives the second transmission wheel 34 sliding inside it to revolve around the axis of the output shaft of the first motor 31, so that the drill bit 311 at the bottom of the second transmission wheel 34 rotates and revolves at the same time.

[0042] When the diameter of the milling hole needs to be adjusted, the operator slides the second transmission wheel 34 inside the base plate 38 toward the side close to the first motor 31. During the movement of the second transmission wheel 34, the gas inside the second pneumatic rod 35 enters into the first pneumatic rod 32 through the hollow ring 36. The gas inside the first pneumatic rod 32 increases and stretches. After the first pneumatic rod 32 is stretched, the first transmission wheel 33 distributed in a ring shape moves together in a direction away from the first motor 31, thereby increasing the diameter of the circle formed by the first pneumatic rod 32 when rotating, increasing the transmission ratio of the first motor 31 to the second transmission wheel 34 when rotating, and increasing the rotation speed of the second transmission wheel 34 close to the first motor 31.

[0043] Beneficial effects:

[0044] By setting the first pneumatic rod 32, the second pneumatic rod 35 and the hollow ring 36, when the equipment drills a small hole, the gas inside the second pneumatic rod 35 enters into the first pneumatic rod 32, and the first pneumatic rod 32 is extended to increase the transmission ratio of the first motor 31 and the second transmission wheel 34, thereby increasing the rotation speed of the second transmission wheel 34, and improving the rotation speed of the drill bit 311 when drilling a small hole, so that when drilling a small hole, the hardware can be efficiently drilled by the combined effect of the rotation and revolution of the drill bit 311, and the high-speed rotating drill bit 311 can grind the burrs on the surface of the hardware caused by drilling at a high speed, thereby reducing the debris generated by milling holes, and avoiding the wear of the hardware surface by the revolution of the drill bit 311 when the debris adheres to the surface of the hardware, thereby improving the milling efficiency and polishing the burrs on the edge of the hole, so that the surface of the milled hole of the hardware is smooth and flat.

[0045] like Figure 4 and Figure 7 As shown, the fixing assembly 4 includes a clamping mechanism 41, which includes a gear ring 413, a second motor 414, a slide groove 415 and an arcuate tooth plate 416. The second motor 414 is fixedly connected to the lower surface of the operating table 1, the slide groove 415 is opened on the output shaft of the second motor 414, and the interior of the slide groove 415 is symmetrically fixedly connected with a first spring 417. The arcuate tooth plate 416 is fixedly connected to one end of the slide groove 415 away from the output shaft of the second motor 414, and the arcuate tooth plate 416 is slidably connected to the interior of the output shaft of the second motor 414. The top of the output shaft of the second motor 414 is rotatably connected with a turntable 411, and the bottom of the turntable 411 is fixedly connected with a sleeve 412. The gear rings 413 are distributed in an annular array and fixedly connected to the inner cavity of the sleeve 412. The sleeve 412 is rotatably connected to the interior of the operating table 1, the arcuate tooth plate 416 is meshed with the gear ring 413, and the top of the turntable 411 is fixedly connected with a carrier plate 418.

[0046] Working principle:

[0047] When facing hardware with a heavier volume and a harder material, the staff will place the hardware on the carrier plate 418 and fix it, and then start the second motor 414. After the output shaft of the second motor 414 rotates to a certain speed, the arc-shaped toothed plate 416 slidably connected inside the slide groove 415 stretches the first spring 417 under the centrifugal effect, and slides inside the output shaft of the second motor 414 toward the inner wall of the sleeve 412. When the arc-shaped toothed plate 416 slides to engage with the toothed ring 413 on the inner wall of the sleeve 412, the arc-shaped toothed plate 416 drives the turntable 411 and the carrier plate 418 to start rotating through the toothed ring 413 and the sleeve 412. The carrier plate 418 rotates to rotate the hardware placed on it together, and the hardware starts to mill holes under the influence of the drill bit 311 above.

[0048] When the hardware needs to stop milling holes in time, the staff controls the second motor 414 to stop rotating. After the speed of the output shaft of the second motor 414 is reduced, the arc tooth plate 416 is pulled back by the arc tooth plate 416 due to the reduction of the centrifugal force. After the arc tooth plate 416 is no longer engaged with the gear ring 413, the rotation of the output shaft of the second motor 414 can no longer affect the sleeve 412, and the rotation of the carrier plate 418 is only affected by its own inertia. After the second motor 414 is powered off, the internal residual current still acts on the second motor 414, causing the second motor 414 to be unable to stop rotating in time.

[0049] Beneficial effects:

[0050] Under the action of the centrifugal force generated by the arc-shaped tooth plate 416 when the output shaft of the second motor 414 rotates, the arc-shaped tooth plate 416 will mesh with the gear ring 413 and cause the hardware to rotate on the carrier plate 418. When the milling hole position of the hardware deviates and needs to stop rotating in time, the staff turns off the second motor 414, and the centrifugal force on the arc-shaped tooth plate 416 is reduced and it is pulled by the first spring 417 until it no longer meshes with the gear ring 413, so that the output shaft of the second motor 414 no longer transmits power to the carrier plate 418, reducing the inertia of the carrier plate 418 when it stops rotating, shortening the time required for the carrier plate 418 to stop rotating, and allowing the staff to adjust the hardware in time.

[0051] like Figures 8 to 10As shown, the fixing assembly 4 also includes an anti-loosening mechanism 42, which includes a clamp 421, a special-shaped hollow tube 427, a ring plate 428, a special-shaped round rod 4211 and a round plate 4215. The clamp 421 is symmetrically slidably connected to the inside of the carrier plate 418, and the two sides of the carrier plate 418 are slidably connected to the electric telescopic rod 426. The outer wall of the carrier plate 418 is symmetrically fixedly connected to the limited position bin 425, and the telescopic end of the electric telescopic rod 426 is fixedly connected to the second slide plate 4212. The second slide plate 4212 fits and slides in the inner cavity of the limit bin 425, and the second slide plate 4212 is fixedly connected to the side away from the electric telescopic rod 426. There is a special-shaped round rod 4211, the interior of the clamp 421 is slidably connected to the first slide rod 422, the bottom of the first slide rod 422 is fixedly connected to the second spring 423 connected to the bottom of the inner cavity of the clamp 421, the interior of the first slide rod 422 is provided with a trapezoidal groove 424, the end of the special-shaped round rod 4211 close to the clamp 421 is slidably connected to the interior of the trapezoidal groove 424, the special-shaped hollow tube 427 is fixedly connected to the side of the clamp 421 close to the electric telescopic rod 426, the special-shaped round rod 4211 is slidably connected to the interior of the special-shaped hollow tube 427, and the interior of the special-shaped hollow tube 427 close to the second slide plate 4212 is in a ring array The second slide bar 429 is slidably connected to the second slide bar 429, the ring plate 428 is fixedly connected to the end of the second slide bar 429 away from the second slide plate 4212, the ring plate 428 slides in the inner cavity of the limit bin 425, the circular plate 4215 and the special-shaped hollow tube 427 are fixedly connected with a third spring 4210, the inside of the clamp 421 is slidably connected with the second slide plate 4212, the second slide plate 4212 and the inside of the clamp 421 are fixedly connected with a fourth spring 4213, the top of the second slide plate 4212 is slidably connected with a pressure plate 4214, and the side of the special-shaped hollow tube 427 close to the ring plate 428 is fixedly connected with a pressure sensor 4 216, the trapezoidal groove 424 is wide at the top and narrow at the bottom, and one end of the special-shaped round rod 4211 close to the first sliding rod 422 fits the bottom of the trapezoidal groove 424, and the pressure sensor 4216 controls the extension and retraction of the electric telescopic rod 426 through a controller arranged inside the limit bin 425. The bottoms of the opposite sides of the two pressure plates 4214 are both set as arc surfaces, and the top of the first sliding rod 422 is set as an inclined surface. The second slide plate 4212 is clamped with the first sliding rod 422, and the side where the circular plate 4215 and the special-shaped hollow tube 427 are close to each other forms a closed space inside the limit bin 425, and the ring plate 428 fits and slides inside the special-shaped hollow tube 427.

[0052] Working principle:

[0053] When the staff puts the hardware on the carrier plate 418, the staff controls the electric telescopic rod 426 to retract. The electric telescopic rod 426 retracts and drives the clamp 421 to be relatively close through the third spring 4210 and the special-shaped hollow tube 427. The clamp 421 is relatively close to clamp the hardware. After the clamp 421 clamps the hardware, the clamp 421 cannot move further. The electric telescopic rod 426 continues to retract and drives the circular plate 4215 to move together. The circular plate 4215 and the special-shaped hollow tube 427 form a closed space inside the limit bin 425, which will form a negative pressure and the air inside the special-shaped hollow tube 427. The air is extracted to make the second slide bar 429 slide in the direction close to the circular plate 4215 inside the special-shaped hollow tube 427. When the second slide bar 429 slides, it drives the ring plate 428 to slide together in the direction close to the circular plate 4215. When the ring plate 428 contacts the pressure sensor 4216, the electric telescopic rod 426 continues to contract, causing the pressure sensor 4216 to be squeezed by the ring plate 428. After the pressure sensor 4216 is squeezed, the controller inside the limit bin 425 controls the electric telescopic rod 426 to stop contracting, so that the closed space between the circular plate 4215 and the special-shaped hollow tube 427 is in a negative pressure state.

[0054] When the clamping of the hardware by the clamp 421 becomes loose due to the shaking of the hardware, the negative pressure between the circular plate 4215 and the special-shaped hollow tube 427 will pull the clamp 421 through the special-shaped hollow tube 427, so that the clamp 421 is further relatively close, thereby re-clamping the hardware. When the hardware is displaced between the clamps 421, the clamp 421 will move in the relative or opposite direction, and the movement of the clamp 421 drives the first slide bar 422 to move together. After the first slide bar 422 moves, The internal trapezoidal groove 424 is squeezed by the special-shaped round rod 4211, causing the first slide bar 422 to slide downward as a whole. After the first slide bar 422 slides downward, it no longer limits the second slide plate 4212. The fourth spring 4213 is elastically released and pushes the second slide plate 4212 to move toward the direction close to the hardware. The pressure plate 4214 moves toward the direction of the hardware driven by the second slide plate 4212 and presses on the top of the hardware, thereby limiting the hardware and preventing the hardware from being abolished when the equipment is milling holes.

[0055] Beneficial effects:

[0056] After the electric telescopic rod 426 is contracted to clamp the hardware rack with the clamp 421, the electric telescopic rod 426 continues to contract and forms a negative pressure in the closed space between the circular plate 4215 and the special-shaped hollow tube 427, so that the clamp 421 can clamp the hardware for a second time. When the hardware is not completely clamped between the clamps 421 due to the placement angle problem, the shaking of the hardware will cause the clamp 421 and the hardware to become loose, and the negative pressure between the circular plate 4215 and the special-shaped hollow tube 427 will pull the clamp 421 to further contract, so that the clamp 421 is further relatively close and clamps the hardware. The clamping is performed in a row to ensure that the hardware is firmly clamped by the clamp 421 when the hardware is milling holes. When the clamp 421 shakes, the first slide bar 422 slides downward, so that the pressure plate 4214 can quickly press the hardware, so that the hardware will not be thrown out of the operating table 1 due to the centrifugal force during rotation when milling holes, causing harm to surrounding personnel, thereby improving the safety of equipment use. At the same time, the pressing of the pressure plate 4214 on the hardware can reset the offset hardware, so that the hardware is restored to the state of being stably clamped by the clamp 421, thereby improving the continuity of the milling operation.

[0057] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0058] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hardware milling device, comprising an operating table (1) and a drilling assembly (3) arranged above the operating table (1), characterized in that: The drilling assembly (3) comprises a first motor (31), a first pneumatic rod (32), a first transmission wheel (33), a second transmission wheel (34) and a movable plate (312); the movable plate (312) is arranged above the operating table (1); the first motor (31) is slidably connected to the inside of the movable plate (312); the first pneumatic rods (32) are arranged in a ring array and are fixedly connected to the outer wall of the output shaft of the first motor (31); the first transmission wheel (33) is fixedly connected to one end of the first pneumatic rod (32) away from the first motor (31); a dust cover (39) is fixedly connected to the bottom of the first motor (31); a bottom plate (38) is rotatably connected to the bottom of the dust cover (39); and a bottom plate (38) is slidably connected to the inside of the bottom plate (38). A first slide plate (310), wherein the interior of the first slide plate (310) is rotatably connected to a drill bit (311), the second transmission wheel (34) is fixedly connected to the top of the drill bit (311), the outer walls of the second transmission wheel (34) and the first transmission wheel (33) are transmission-connected to a transmission belt (313), the outer wall of the first motor (31) is rotatably connected to a hollow ring (36), the top of the second transmission wheel (34) is rotatably connected to a second pneumatic rod (35), one end of the second pneumatic rod (35) away from the second transmission wheel (34) is fixedly connected to the interior of the hollow ring (36), the hollow ring (36) is connected to the interior of the first pneumatic rod (32), and a differential plate (37) is rotatably connected between the first motor (31) and the bottom plate (38).

2. A hardware hole milling device according to claim 1, characterized in that: A fixing component (4) is arranged inside the operating table (1); a movable frame (2) is symmetrically fixedly connected to the upper surface of the operating table (1); and the movable plate (312) is slidably connected between the two movable frames (2).

3. A hardware hole milling device according to claim 2, characterized in that: The fixing assembly (4) comprises a clamping mechanism (41), the clamping mechanism (41) comprising a gear ring (413), a second motor (414), a slide groove (415) and an arc-shaped tooth plate (416), the second motor (414) being fixedly connected to the lower surface of the operating table (1), the slide groove (415) being opened on the output shaft of the second motor (414), the interior of the slide groove (415) being symmetrically fixedly connected with a first spring (417), and the arc-shaped tooth plate (416) being fixedly connected to an end of the slide groove (415) away from the output shaft of the second motor (414), The arc-shaped toothed plate (416) is slidably connected to the inside of the output shaft of the second motor (414); the top of the output shaft of the second motor (414) is rotatably connected to a turntable (411); the bottom of the turntable (411) is fixedly connected to a sleeve (412); the toothed ring (413) is distributed in an annular array and fixedly connected to the inner cavity of the sleeve (412); the sleeve (412) is rotatably connected to the inside of the operating table (1); the arc-shaped toothed plate (416) is meshed with the toothed ring (413); and the top of the turntable (411) is fixedly connected to a carrier plate (418).

4. A hardware hole milling device according to claim 3, characterized in that: The fixing assembly (4) further comprises an anti-loosening mechanism (42), the anti-loosening mechanism (42) comprising a clamp (421), a special-shaped hollow tube (427), a ring plate (428), a special-shaped round rod (4211) and a round plate (4215), the clamp (421) being symmetrically slidably connected to the inside of the carrier plate (418), both sides of the carrier plate (418) being slidably connected to electric telescopic rods (426), an outer wall of the carrier plate (418) being symmetrically fixedly connected to the limited position bin (425), and a telescopic end of the electric telescopic rod (426) being fixedly connected to a second slide plate (4215). 212), the second slide plate (4212) is fitted and slid in the inner cavity of the limit bin (425), the side of the second slide plate (4212) away from the electric telescopic rod (426) is fixedly connected to a special-shaped round rod (4211), the interior of the clamp (421) is slidably connected to a first slide bar (422), the bottom of the first slide bar (422) is fixedly connected to a second spring (423) connected to the bottom of the inner cavity of the clamp (421), the interior of the first slide bar (422) is provided with a trapezoidal groove (424), the special-shaped round rod (4211) is close to the clamp (42 1) is slidably connected to the inside of the trapezoidal groove (424), the special-shaped hollow tube (427) is fixedly connected to a side of the clamp (421) close to the electric telescopic rod (426), the special-shaped round rod (4211) is slidably connected to the inside of the special-shaped hollow tube (427), and the second sliding rod (429) is slidably connected to the side of the special-shaped hollow tube (427) close to the second slide plate (4212) in a circular array, and the ring plate (428) is fixedly connected to an end of the second sliding rod (429) away from the second slide plate (4212), and the ring plate (428) is attached to the second slide plate (429). The circular plate (4215) and the special-shaped hollow tube (427) are connected to each other in a sliding manner and slide in the inner cavity of the limit bin (425); a third spring (4210) is fixedly connected between the circular plate (4215) and the special-shaped hollow tube (427); a second slide plate (4212) is slidably connected inside the clamp (421); a fourth spring (4213) is fixedly connected between the second slide plate (4212) and the inside of the clamp (421); a pressure plate (4214) is slidably connected to the top of the second slide plate (4212); and a pressure sensor (4216) is fixedly connected to a side of the special-shaped hollow tube (427) close to the ring plate (428).

5. A hardware hole milling device according to claim 4, characterized in that: The trapezoidal groove (424) is wide at the top and narrow at the bottom, and one end of the special-shaped round rod (4211) close to the first sliding rod (422) is attached to the bottom of the trapezoidal groove (424).

6. A hardware hole milling device according to claim 4, characterized in that: The pressure sensor (4216) controls the extension and retraction of the electric telescopic rod (426) through a controller arranged inside the limit bin (425); the bottoms of the two opposite sides of the two pressure plates (4214) are both arranged as arc surfaces; the top of the first slide bar (422) is arranged as an inclined surface; and the second slide plate (4212) is clamped with the first slide bar (422).

7. The hardware milling device according to claim 1, characterized in that: The differential plate (37) enables the output end of the first motor (31) and the base plate (38) to rotate in the same direction at a differential speed.

8. The hardware milling device according to claim 4, characterized in that: The side of the circular plate (4215) and the special-shaped hollow tube (427) that is close to each other forms a closed space inside the limiting bin (425), and the annular plate (428) fits and slides inside the special-shaped hollow tube (427).

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