Universal aligning mechanism for upper polishing head of single-sided polishing machine

Abstract

The universal aligning mechanism comprises an aligning outer sleeve, an aligning middle sleeve, an aligning inner sleeve, a needle bearing and an aligning shaft, the aligning shaft comprises an aligning large shaft and an aligning small shaft, the upper portion of the aligning outer sleeve is connected with a polishing head flange, the middle portion of the polishing head flange is in key connection with a spline shaft, and the middle portion of the spline shaft is in key connection with the aligning large shaft. Two large aligning shafts are fixed in the outer aligning sleeve through cylindrical pins, the large aligning shafts are connected with the middle aligning sleeve through needle bearings, small aligning shafts are fixed on the middle aligning sleeve through needle bearings, the small aligning shafts are connected with the inner aligning sleeve through cylindrical pins, and the inner aligning sleeve is fixed on the upper polishing disc. According to the universal aligning mechanism for the upper polishing head of the single-sided polishing machine, the relative position between the upper polishing head and the lower polishing disc can be automatically adjusted, so that the fitting goodness and the parallelism in the polishing process are guaranteed, and the polishing quality is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a polishing machine technical field more specifically, relate to a kind of universal aligning mechanism of upper polishing head of single-side polishing machine. BACKGROUND

[0002] In high-precision polishing process, especially in the polishing process of hard and brittle materials such as silicon carbide, the accurate alignment and alignment between the upper polishing head and the lower polishing disc are the key factors of polishing quality.

[0003] The traditional polishing machine upper polishing head mechanism often lacks effective alignment mechanism, which cannot adapt to polishing discs of different curvature radii during polishing, affecting the uniformity and efficiency of polishing. In addition, due to wear and deformation during polishing, the alignment accuracy between the upper polishing head and the lower polishing disc will gradually decrease, which requires frequent adjustment, increasing the complexity of operation and polishing cost.

[0004] The utility model can automatically adjust the relative position between the upper polishing head and the lower polishing disc to ensure the fit and parallelism of the polishing process and improve the polishing quality. UTILITY MODEL CONTENT

[0005] The utility model aims at solving the technical problems in the above background art, and provides a universal aligning mechanism of upper polishing head of single-side polishing machine.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: a universal aligning mechanism of upper polishing head of single-side polishing machine, comprising an aligning outer sleeve, an aligning middle sleeve, an aligning inner sleeve, a needle roller bearing and an aligning shaft, the aligning shaft comprising a large aligning shaft and a small aligning shaft, the aligning outer sleeve being connected to the polishing head flange at the top, the polishing head flange being connected to the spline shaft by keys in the middle, two large aligning shafts being fixed in the aligning outer sleeve by cylindrical pins, the large aligning shafts being connected to the aligning middle sleeve by needle roller bearings, the small aligning shaft being fixed in the aligning middle sleeve by needle roller bearings, the small aligning shaft being connected to the aligning inner sleeve by cylindrical pins, and the aligning inner sleeve being fixed on the upper polishing disc.

[0007] Further preferred scheme: needle roller bearings are provided on the large aligning shaft and the small aligning shaft.

[0008] Further preferred scheme: the aligning inner sleeve is connected to the upper polishing disc, the aligning middle sleeve is connected to the aligning outer sleeve by the large aligning shaft, and the aligning inner sleeve is connected to the aligning middle sleeve by the small aligning shaft.

[0009] Beneficial effects:

[0010] Compared with the prior art, the universal aligning mechanism of the utility model, through the precisely designed aligning inner sleeve, aligning middle sleeve, aligning outer sleeve and the needle roller bearing on the aligning shaft, realizes the automatic aligning function between the upper polishing head and the lower polishing disc. This structure not only can quickly respond and adjust the relative position of the upper polishing head and the lower polishing disc to adapt to the polishing disc of different curvature radius, but also can significantly improve the aligning precision, ensure the fitting and parallelism in the polishing process. In addition, this structure reduces the direct contact and friction between the upper polishing head and the lower polishing disc, effectively reduces the wear, prolongs the service life of the equipment, and reduces the maintenance cost. At the same time, the automatic aligning function reduces the need for manual adjustment, simplifies the operation process, and improves the production efficiency. The design of this structure also enhances the stability of the system, reduces the quality problems caused by vibration or deviation in the polishing process, thereby reducing the energy consumption and improving the polishing efficiency, providing an efficient, economical and reliable solution for users.

[0011] The utility model discloses structure design is reasonable, through the integration aligning inner sleeve, aligning middle sleeve, aligning outer sleeve and needle roller bearing etc. Key components, realize the accurate automatic aligning between the upper polishing head and the lower polishing disc, significantly improve the aligning precision and response speed, enhance the adaptability to the polishing disc of different curvature radius, reduce the problem of shortening of equipment life due to wear, and effectively improve the polishing quality, especially in improving the flatness of the machined parts quality problem, show its superior performance and practical application value. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 It is the structure schematic diagram of the utility model.

[0013] Fig. 2 It is the sectional structure schematic diagram of the utility model.

[0014] Fig. 3 It is the side sectional structure schematic diagram of the utility model.

[0015] Figs. 1-3 Middle: 1, aligning outer sleeve, 2, aligning middle sleeve, 3, aligning inner sleeve, 4, aligning big shaft, 5, aligning small shaft, 6, needle roller bearing, 7, cylindrical pin, 8, spline shaft, 9, polishing head flange, 10, upper polishing disc. DETAILED DESCRIPTION

[0016] The technical scheme in the utility model embodiment will be described below in conjunction with the drawings of the utility model embodiment. Figs. 1-3 The technical scheme in the utility model embodiment will be described below in conjunction with the drawings of the utility model embodiment.

[0017] Please refer to Figs. 1-3In the utility model embodiment, a universal aligning mechanism of an upper polishing head of a single-side polishing machine, including aligning outer sleeve 1, aligning middle sleeve 2, aligning inner sleeve 3, needle roller bearing 6 and aligning shaft, aligning outer sleeve 1 is located the outermost layer of whole aligning mechanism, plays the role of support and fixed function;Aligning middle sleeve 2 is embedded in aligning outer sleeve 1, and aligning middle sleeve 2 is allowed to rotate relative to aligning outer sleeve 1;Aligning shaft includes aligning big shaft 4 and aligning small shaft 5, aligning outer sleeve 1 top is connected with polishing head flange 9, polishing head flange 9 middle part is connected with spline shaft 8, and polishing head flange 9 transmits torque and keeps synchronous movement, and spline shaft 8 is responsible for power transmission to polishing head part;Two aligning big shafts 4 are fixed in aligning outer sleeve 1 by cylindrical pin 7, and cylindrical pin 7 ensures the relative position stability between parts;Aligning big shaft 4 is connected with aligning middle sleeve 2 by needle roller bearing 6, and aligning small shaft 5 is fixed on aligning middle sleeve 2 by needle roller bearing 6, needle roller bearing 6 provides low friction, high bearing capacity support, ensures smooth rotation between parts, adopts needle roller bearing 6, reduces friction, improves rotation accuracy, and helps to realize more delicate polishing effect;Aligning small shaft 5 is connected with aligning inner sleeve 3 by cylindrical pin 7, which ensures that aligning inner sleeve 3 can move with aligning small shaft 5, and aligning inner sleeve 3 is fixed on upper polishing disc 10, and upper polishing disc 10 is the actual execution surface of polishing operation;When polishing head carries out polishing operation, due to the unevenness or complex shape of workpiece surface, aligning mechanism can automatically adjust the angle of polishing head through the freedom provided by needle roller bearing 6, ensure that polishing tool is always perpendicular to workpiece surface, thereby improving polishing quality and efficiency;Aligning outer sleeve 1, aligning middle sleeve 2 and aligning inner sleeve 3 are connected by needle roller bearing 6, which not only ensures the rigidity of the overall structure, but also gives the necessary flexibility, so that the polishing head can swing freely within a certain range, and adapt to different polishing requirements;Power is transmitted from spline shaft 8 to aligning outer sleeve 1 via polishing head flange 9, and then reaches aligning inner sleeve 3 and upper polishing disc 10 through aligning big shaft 4, aligning middle sleeve 2 and aligning small shaft 5, ensuring that the whole system works in coordination.

[0018] In the utility model embodiment, the aligning big shaft 4 and the aligning small shaft 5 are provided with the needle roller bearing 6, and the bearing design can reduce friction and provide flexible aligning capability, so that the upper polishing head can be automatically adjusted according to the shape of the lower polishing disc, and the fitting degree and parallelism are ensured.

[0019] In the utility model embodiment, the aligning inner sleeve 3 is connected with the upper polishing disc 10, the aligning middle sleeve 2 is connected with the aligning outer sleeve 1 by the aligning big shaft 4, and the aligning inner sleeve 3 is connected with the aligning middle sleeve 2 by the aligning small shaft 5, and the structure allows the upper polishing head to be finely adjusted in the vertical and horizontal directions to ensure accurate positioning with the lower polishing disc.

[0020] The above merely describes preferred embodiments of the present application, and it should be noted that, for those skilled in the art, without departing from the inventive concept, a number of modifications and improvements can be made, and these all belong to the protection scope of the present application.

Claims

1. A universal centering mechanism for a polishing head of a single-side polishing machine, characterized by: The application relates to a centering device, which comprises a centering outer sleeve (1), a centering middle sleeve (2), a centering inner sleeve (3), a needle bearing (6) and a centering shaft, wherein the centering shaft comprises a centering large shaft (4) and a centering small shaft (5), the centering outer sleeve (1) is connected with a throwing head flange (9) at the top, the throwing head flange (9) is connected with a spline shaft (8) through key connection in the middle, two centering large shafts (4) are fixed in the centering outer sleeve (1) through cylindrical pins (7), the centering large shafts (4) are connected with the centering middle sleeve (2) through the needle bearing (6), the centering small shaft (5) is fixed on the centering middle sleeve (2) through the needle bearing (6), the centering small shaft (5) is connected with the centering inner sleeve (3) through the cylindrical pin (7), and the centering inner sleeve (3) is fixed on an upper throwing disc (10).

2. The universal alignment mechanism of a single-side polishing machine according to claim 1, wherein: The centering large shaft (4) and the centering small shaft (5) are provided with the needle bearing (6).

3. The universal alignment mechanism of a single-side polishing machine according to claim 1, wherein: The centering inner sleeve (3) is connected with the upper throwing disc (10), the centering middle sleeve (2) is connected with the centering outer sleeve (1) through the centering large shaft (4), and the centering inner sleeve (3) is connected with the centering middle sleeve (2) through the centering small shaft (5).

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