Multi-axis polishing head device

Abstract

The present invention discloses a multi-axis polishing head device, comprising a multi-axis box with multiple working surfaces arranged on a mounting seat through a rotating shaft, multiple multi-axis devices arranged in the multi-axis box, a main shaft connected to each multi-axis device, a driving motor arranged at one end of the mounting seat to drive the main shaft to rotate, and a transposition motor arranged at the other end of the mounting seat to drive the multi-axis box to rotate; the multi-axis device comprises a sealed housing, an output shaft extending from the working surface of the multi-axis box from different directions around the housing, and multiple input shaft assemblies passing through each housing are arranged between each multi-axis device, each input shaft assembly is connected to an output shaft on each multi-axis device through a bevel gear pair, and each input shaft assembly is respectively installed with a dislocated driven gear; the main shaft is provided with a driving gear respectively meshed with each driven gear through a pneumatic clutch connected to an air pipe. The present invention can solve the problem that the transmission accuracy is not easy to ensure due to the high difficulty of assembly, and improve the lubrication condition of the transmission gear to increase the service life of the equipment.

Description

Technical Field

[0001] The invention belongs to polishing equipment, and in particular relates to a multi-axis polishing head device. Background Art

[0002] With the increasing popularity of mobile phones and the rapid development of electronic products such as LCD TVs, the application of mobile phone glass and metal frame grinding and polishing machines has grown rapidly. Especially for metal frames with complex shapes, five-axis CNC polishing machines are required for effective polishing.

[0003] The polishing head device of the existing five-axis polishing machine includes a multi-axis box with four rotatable working surfaces. The four working surfaces of the multi-axis box are respectively provided with five output shafts for installing the polishing head. Each output shaft is matched with a main shaft driven by a motor through a bevel gear pair. The main shaft drives the output shaft on the multi-axis box through the bevel gear pair to drive the polishing head to rotate and polish the workpiece. This device has the following problems:

[0004] 1. Since multiple pairs of bevel gears are installed inside the multi-axis box of the polishing head device, and five pairs of bevel gears are provided on each working surface of the corresponding multi-axis box, the machining accuracy of the device parts is quite high, and the assembly accuracy of the parts is difficult to assemble. Due to machining errors and assembly errors, the matching accuracy of the gears inside the multi-axis box is difficult to ensure, which makes the gears inside the device easy to wear and the working noise of the device is large.

[0005] 2. Due to space and structural limitations, it is impossible to arrange a lubrication device inside the multi-axis box of the polishing head device, and the bevel gear pair is an open structure. The manually added lubricating oil is not easy to adhere to the gears, causing the gears to wear easily, thereby affecting the service life of the polishing head device. Summary of the invention

[0006] The purpose of the present invention is to provide a multi-axis polishing head device to solve the problem of difficult to ensure transmission accuracy due to high assembly difficulty, and to improve the lubrication condition of the transmission gears to increase the service life of the equipment.

[0007] The technical solution adopted to achieve the purpose of the present invention is as follows:

[0008] The multi-axis polishing head device provided by the present invention comprises a multi-axis box with multiple working surfaces arranged on a mounting seat through a rotating shaft, multiple multi-axis devices arranged in the multi-axis box, a main shaft connected to each multi-axis device, a driving motor arranged at one end of the mounting seat to drive the main shaft to rotate, and a transposition motor arranged at the other end of the mounting seat to drive the multi-axis box to rotate; the multi-axis device comprises a sealed shell, an output shaft extending from the working surface of the multi-axis box from different directions around the shell, and multiple input shaft assemblies passing through each shell are arranged between each multi-axis device, each input shaft assembly is connected to an output shaft on each multi-axis device through a bevel gear pair, and each input shaft assembly is respectively installed with a staggered driven gear; the main shaft is provided with a driving gear respectively meshed with each driven gear through a pneumatic clutch connected to an air pipe, and each driving gear is connected and disconnected with the main shaft through the pneumatic clutch.

[0009] A multi-channel pneumatic slip ring is provided between the end of the multi-axis box and the mounting seat, the rotor of the pneumatic slip ring is connected to the rotating shaft of the multi-axis box, the rotor has multiple air outlets connected to each pneumatic clutch by air pipes, the stator of the pneumatic slip ring is connected to the mounting seat, the stator has multiple air inlet holes connected to the pneumatic control valve on the pneumatic control panel, and the on and off of the pneumatic clutch can be controlled in real time.

[0010] The input shaft assembly is composed of corresponding input shafts arranged on each multi-shaft device connected via a coupling.

[0011] Beneficial Effects

[0012] 1. In the present invention, each multi-axis device is a component including a housing, multiple input shafts and multiple output shafts. These input shafts and output shafts are installed on the same part housing, which makes it easier to ensure the assembly accuracy of the bevel gear pair. Multiple multi-axis devices are fixed in the multi-axis box, and their input shafts are connected by a coupling to form an input shaft assembly, which has a simple structure and low assembly difficulty. Due to the high matching accuracy of the bevel gear pair, the present invention can effectively reduce the operating noise of the mechanism when working, and ensure the service life of the multi-axis device.

[0013] 2. The interior of the multi-axis device housing is a closed cavity, and lubricating oil can be sealed in the cavity, so that the bevel gear pair inside the multi-axis device is always in a lubricated state, the gears are not easy to wear, the meshing accuracy of the gears can be guaranteed, and the service life of the device of the present invention is improved.

[0014] The technical solution of the present invention is further described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an axonometric view of a five-axis polishing machine.

[0016] Figure 2 It is a structural schematic diagram of the present invention.

[0017] Figure 3It is a top view of the structure of the present invention.

[0018] Figure 4 It is a schematic diagram of the cooperation between the multi-axis device and the main axis in the present invention.

[0019] Figure 5 It is a front view of the multi-axis device in the present invention.

[0020] Figure 6 yes Figure 5 AA section view. DETAILED DESCRIPTION

[0021] See Figure 1 —— Figure 6 The multi-axis polishing head device 1 provided by the present invention comprises a mounting seat 101, a multi-axis box 102 with four working surfaces arranged on the mounting seat 101 through a rotating shaft, five multi-axis devices arranged in the multi-axis box 102 through a mounting plate 109, a spindle 113 connected to the five multi-axis devices, a driving motor 108 arranged at one end of the mounting seat 101 and connected to the spindle 113 through a coupling 114, and a transposition motor 105 arranged at the other end of the mounting seat 101 and driving the rotating shaft to rotate the multi-axis box 102; the multi-axis device comprises a sealed housing 106, four output shafts 103 extending from four directions around the housing 106, and a plurality of output shafts 104 extending from the housing 106. Four input shafts 115 extend from both sides of the housing 106, and four output shafts 103 extend from four working surfaces of the multi-axis box 102 respectively. The four input shafts 115 are respectively connected to one output shaft 103 through a bevel gear pair 117. The four input shafts 115 on the five multi-axis devices are respectively connected to form an input shaft assembly through a coupling 111, forming multiple input shaft assemblies that penetrate each housing 106 between each multi-axis device. Each input shaft assembly is connected to an output shaft 103 on each multi-axis device through a bevel gear pair 117; the four input shaft assemblies are respectively installed with staggered driven gears 110. Figure 3From left to right, the first driven gear 110 is mounted on the lower input shaft assembly, the second driven gear 110 is mounted on the rear input shaft assembly, the third driven gear 110 is mounted on the driven gear 9 on the upper input shaft assembly, and the fourth driven gear 110 is mounted on the front input shaft assembly (not shown); the main shaft 113 is provided with driving gears 116 respectively meshing with each driven gear 110 through four pneumatic clutches 112 connected to the air pipe, and each driving gear 116 is connected to the driven gear 110 through four pneumatic clutches 112 connected to the air pipe. 6 is connected and disconnected with the main shaft 113 through the pneumatic clutch 112; a four-channel pneumatic slip ring 107 is provided between the right end of the multi-axis box 102 and the mounting seat 101, the rotor of the pneumatic slip ring 107 is connected to the rotating shaft of the multi-axis box 102, and there are four air outlets on the rotor connected to four pneumatic clutches 112 respectively by copper air pipes, and the stator of the pneumatic slip ring 6 is connected to the mounting seat 101, and the stator has four air inlet holes connected to the pneumatic control valve on the pneumatic control panel, which can control the on and off of the pneumatic clutch 112 in real time. The pneumatic control valve, the pneumatic slip ring 107 and the pneumatic clutch 112 are prior art.

[0022] A five-axis polishing machine using the device of the present invention is as follows Figure 1 As shown, it includes a base 4, a Z-axis lifting mechanism 2 and an XY-axis two-dimensional platform 3 arranged on the base 4, and five fixtures for fixing the workpiece 301 are arranged on the XY-axis two-dimensional platform 3. The multi-axis polishing head device 1 of the present invention is installed on the Z-axis lifting mechanism 2. When the five-axis polishing machine is working, a polishing head 104 is installed on each output shaft 103 in the multi-axis polishing head device 1, and the workpiece 301 is driven by the XY-axis two-dimensional platform 3 to move in the X and Y-axis directions. The multi-axis polishing head device 1 is driven by the Z-axis lifting mechanism 2 to move up and down and cooperate with the XY-axis two-dimensional platform 3, and the polishing heads 104 on different working surfaces thereof are used to simultaneously polish the workpiece 301 installed on the five fixtures of the XY-axis two-dimensional platform 3. The driving motor 108 drives the main shaft 113 to rotate through the coupling 114. The pneumatic valve controls one of the four pneumatic clutches 112 to engage with the main shaft 113, and the other three pneumatic clutches 112 are disconnected from the main shaft 113. The pneumatic clutch 112 engaged with the main shaft 113 drives the driving gear 116 connected thereto to rotate. The driving gear 116 drives the corresponding driven gear 110 to rotate and drives an input shaft assembly to rotate. The input shaft assembly simultaneously drives five output shafts 115 on the same working surface of the multi-axis box 102 in the multi-axis polishing head device 1 to rotate. According to the process requirements, the multi-axis box 102 is driven by the transposition motor 105 to rotate and change its four working surfaces, and the polishing heads 104 on different working surfaces are used to polish the workpiece. The pneumatic control valve and the pneumatic slip ring 107 provide a pressure gas source for the pneumatic clutch 112.

[0023] In the present invention, each multi-axis device is a component including a housing 106, four input shafts 115 and four output shafts 103. The housing 106 of the multi-axis device is integrally cast and processed. These input shafts 115 and output shafts 103 are installed on the same part housing 106, which makes it easier to ensure the assembly accuracy of the gears. The five multi-axis devices are installed and fixed in the multi-axis box 102 through the mounting plate 109. Their input shafts 115 are connected by a coupling to form an input shaft assembly, which has a simple structure and low assembly difficulty. Due to the high matching accuracy of the gears, the polishing head device can effectively reduce the operating noise of the mechanism when working, thereby ensuring the service life of the multi-axis device. The interior of the multi-axis device is a closed cavity, and lubricating oil can be sealed inside, so that the bevel gear pair 117 inside the multi-axis device is always in a lubricated state, the gears are not easy to wear, the meshing accuracy of the gears can be ensured, and the service life of the device of the present invention is improved.

Claims

1. A multi-axis polishing head device, comprising a multi-axis box with multiple working surfaces arranged on a mounting seat through a rotating shaft, multiple multi-axis devices arranged in the multi-axis box, a spindle connected to each multi-axis device, a driving motor arranged at one end of the mounting seat to drive the spindle to rotate, and a transposition motor arranged at the other end of the mounting seat to drive the multi-axis box to rotate; wherein the multi-axis box is characterized in that The multi-axis device includes a sealed shell, output shafts extending from the working surface of the multi-axis box in different directions around the shell, and multiple input shaft assemblies penetrating the shells are arranged between the multi-axis devices. Each input shaft assembly is connected to an output shaft on each multi-axis device through a bevel gear pair, and each input shaft assembly is respectively installed with a staggered driven gear; the main shaft is provided with a driving gear respectively meshing with each driven gear through a pneumatic clutch connected to the air pipe, and each driving gear is connected and disconnected with the main shaft through the pneumatic clutch.

2. The multi-axis polishing head device according to claim 1, characterized in that A multi-channel pneumatic slip ring is provided between the end of the multi-axis box and the mounting seat, the rotor of the pneumatic slip ring is connected to the rotating shaft of the multi-axis box, the rotor has multiple air outlets connected to each pneumatic clutch by air pipes, the stator of the pneumatic slip ring is connected to the mounting seat, the stator has multiple air inlet holes connected to the pneumatic control valve on the pneumatic control panel, and the on and off of the pneumatic clutch can be controlled in real time.

3. The multi-axis polishing head device according to claim 1 or 2, characterized in that The input shaft assembly is composed of corresponding input shafts arranged on each multi-shaft device connected via a coupling.

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