[0021] The following describes the present invention in further detail with reference to the accompanying drawings and specific embodiments, without limiting the scope of implementation of the present invention.
[0022] Such as Figure 1 to Figure 11 As shown, the polishing and grinding machine in this embodiment that realizes diameter reduction through the cooperation of a screw and a bevel gear includes a first motor 1, a top cover 2, a tube-shaped fixed sleeve 3, a dust collecting cover seat 4, and an end surface The gear 5, the second motor 6, the grinding groove disk 7, the screw fixing frame 8 and the air ring 9. The first motor 1 is fixed on the top surface of the top cover 2, and its output end passes through the top cover 2 and the end surface The middle part of the gear 5 is fixedly connected, the top cover 2 is closed on the top end of the fixed sleeve 3, the dust collecting cover seat 4 includes a dust collecting cover 41 and a dust collecting connecting pipe 42. The middle part of the dust collecting cover 41 It is fixedly connected with the dust collecting connecting pipe 42. Specifically, the dust collecting cover 41 and the dust collecting connecting pipe 42 are integrally formed. The dust collecting connecting pipe 42 extends into the fixed sleeve 3 and meshes with the end gear 5, so The inner wall of the fixing sleeve 3 is connected to the outer wall of the dust collecting connecting pipe 42 through the bearing member 10, the top end of the grinding groove disc 7 is fixedly connected to the bottom end of the dust collecting cover 41, and the grinding groove disc 7 and the dust collecting cover A dust storage chamber 20 is formed between the bodies 41, the air ring 9 is fixed on the dust collecting cover 41 and communicates with the dust storage chamber 20, the grinding groove disk 7 is provided with a center hole, and the screw is fixed The frame 8 is fixed on the central hole, the second motor 6 is fixed on the top end of the screw fixing frame 8 and is located in the dust collecting connecting pipe 42, and the inner wall of the fixing sleeve 3 is installed with a slip ring 30, the second The motor 6 passes through the end gear 5 through the roller conductive assembly 40 and then is electrically connected to the slip ring 30. The output end of the second motor 6 passes through the screw fixing frame 8 and is connected to the active conical gear 50. The grinding groove disk 7 is slidably connected to six fan-shaped polishing and polishing components 60 in the radial direction. Each polishing and polishing component 60 is threadedly connected with a variable diameter screw 70, and the other end of each of the variable diameter screw 70 penetrates in the radial direction. After the screw fixing frame 8 is connected, a driven bevel gear 80 is connected. Each of the driven bevel gears 80 meshes with the driving bevel gear 50. The grinding groove disk 7 is located between two adjacent polishing and grinding components 60. Five dust suction holes 71 are arranged at intervals in the gap, and the dust suction holes 71 communicate with the dust storage chamber 20, and the bottom end of the screw fixing frame 8 is also fixed with a dustproof bottom plate 90.
[0023] The working mode of this embodiment is: when grinding and polishing the workpiece, the slip ring 30 and the roller conductive assembly 40 are supplied to the second motor 6, and the second motor 6 works to drive the active bevel gear 50 to rotate, and the active bevel gear 50 drives six The driven bevel gear 80 rotates, and the six driven bevel gears 80 simultaneously drive the six reducing screws 70 to rotate, so that the polishing and polishing assembly 60 can move in the radial direction, and the movable radius of the six polishing and polishing assemblies 60 can be adjusted. By changing the rotation direction of the second motor 6, the movable radius of the six polishing and polishing components 60 can be adjusted to increase or decrease. When polishing the center area of the workpiece, the movable radius of the polishing and polishing component 60 is increased to improve the polishing efficiency. When grinding the corner positions of the workpiece, the movable radius of the polishing and polishing assembly 60 is reduced, so as to solve the problem of relatively large dead corners in the polishing of the workpiece, and the structure is more flexible; when the movable radius of the six polishing and polishing assemblies 60 is adjusted, the first The second motor 6 stops working, and the six polishing and polishing components 60 will not slide in the radial direction under the thread self-locking function, so that the problem of the six polishing and polishing components 60 being thrown out under the action of centrifugal force can be avoided, and then the first motor 1 works , Drives the end gear 5 to rotate, the end gear 5 drives the dust cover base 4 to rotate, and the dust cover base 4 drives the grinding groove disk 7 to rotate, thereby driving the six polishing and grinding components 60 to rotate at a high speed to polish and polish the workpiece; at the same time, the groove is polished. The disk 7 will also drive the screw fixing frame 8 to rotate, and the screw fixing frame 8 drives the second motor 6 to rotate, so that the second motor 6, the roller conductive assembly 40 and the end gear 5 remain relatively static; during the grinding and polishing process, it will produce Debris and powder, these debris and powder will affect the grinding and polishing. Therefore, in this embodiment, the dust storage chamber 20 is vacuumed through the air ring 9 so that the powder and debris pass through the dust suction hole under the action of air pressure. After 71, it is sucked into the dust storage chamber 20 to solve the problem of debris and powder affecting the polishing effect, and the polishing effect is better.
[0024] This embodiment realizes the adjustment of the movable radius of the six polishing and polishing components 60 through the cooperation of the screw and the gear, so as to solve the problem of relatively large dead angle in the polishing without affecting the polishing efficiency of the workpiece, the transmission is more reliable, and the cost is low. The electric motor 6 adopts a built-in method. The electric conduction of the second electric motor 6 is realized through the slip ring 30 and the roller conductive assembly 40. The structure is compact and small in size. In the polishing process, the debris and powder produced by the polishing can be removed at the same time. Guarantee the polishing effect of the workpiece and further reduce the cost.
[0025] Based on the above embodiments, further, such as figure 1 , image 3 with Figure 5 As shown, the polishing and polishing assembly 60 includes a diameter-reducing slider 601 and an abrasive block 602. The diameter-reducing slider 601 is slidably connected to the grinding groove disk 7, and one end of the diameter-reducing screw 70 is connected to the diameter-reducing slider 601. Thread connection, the abrasive block 602 is fixed on the bottom surface of the variable diameter slider 601; during operation, the variable diameter screw 70 is driven by the second motor 6 to rotate, and the variable diameter screw 70 is limited on the screw fixing frame 8, so When the diameter-reducing screw 70 rotates, the diameter-reducing slider 601 will move along the radial direction on the grinding groove disk 7, and the diameter-reducing slider 601 drives the abrasive block 602 to move, so as to realize the adjustment of the movable radius of the abrasive block 602. Driven by a motor 1, the abrasive block 602 polishes the surface of the workpiece. In this embodiment, a layer of shock-absorbing pad can be arranged between the variable-diameter slider 601 and the abrasive block 602 to better protect the abrasive block 602 and prolong the service life of the abrasive block 602.
[0026] Based on the above embodiments, further, such as Image 6 As shown, the roller conductive assembly 40 includes a conductive clip 401 and a conductive wheel 402. One end of the conductive clip 401 is fixed to the second motor 6, and the conductive wheel 402 is axially connected to the other end of the conductive clip 401 and is connected to When the slip ring 30 is in contact, the electrical connection end of the second motor 6 is electrically connected to the conductive wheel 402; in operation, driven by the first motor 1, the end gear 5 is in contact with the second motor 6, and the conductive component of the roller 40 has no relative movement, and the conductive wheel 402 rolls along the slip ring 30, so that the second motor 6 can be kept in an electrically conductive state.
[0027] The above is only a preferred embodiment of the present invention, so any equivalent changes or modifications made in accordance with the structure, features and principles described in the scope of the patent application of the present invention are included in the protection scope of the patent application of the present invention.
