CN211760443U

CN211760443U - Second transmission mechanism for 3D optical element polishing machine

Info

Publication number: CN211760443U
Application number: CN201922475819.4U
Authority: CN
Inventors: 王安全; 王丁
Original assignee: Individual
Current assignee: Yunnan Jingmo Technology Co.,Ltd.
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-10-27
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses a second drive mechanism for 3D optical element burnishing machine, the second drive mechanism of mainly used 3D heterotypic optical element burnishing machine. The main technical scheme is as follows: the polishing machine is composed of three structures of the upper part, the middle part and the lower part of a long central shaft, under the driving of a main motor, an eccentric gear drives a T-shaped screw rod, a crank seat, a connecting rod seat, a swinging arm and a pressure head which are connected into a whole to do reciprocating motion of a crank connecting rod, and when the polishing machine works, an upper workpiece disc does arc swinging back and forth and downwards. The utility model discloses a proof on probation: fundamentally has overcome the unqualified phenomenon of 3D component polishing, has reached and has improved the technical quality of 3D component polishing effectively, has improved production efficiency, and reduce cost satisfies the demand of the many varieties mass production of 3D component.

Description

Second transmission mechanism for 3D optical element polishing machine

Technical Field

The utility model belongs to a drive mechanism of optical element burnishing machine, the second drive mechanism of mainly used 3D optical element burnishing machine also can be used to the drive mechanism of other similar burnishing machines.

Background

The 3D special-shaped optical element mainly refers to an optical element having a three-dimensional shape, such as a front cover and a rear cover of a mobile phone with four folded surfaces shown in fig. 1, and an arc-shaped bracelet shown in fig. 2, wherein an included angle between the folded surfaces of the four sides can be 90 degrees^oAnd may be greater than 90^oAnd a watch cover, a display window cover and the like with a folding surface on the circumference, and 3D special-shaped optical elements (hereinafter referred to as 3D elements) which enable optical products to have more beautiful appearance and excellent physical characteristics such as interference resistance, falling resistance and hard wear resistance, and can remove defects, grains and fine cracks on the surface, reduce the surface roughness and increase the light transmittance by polishing the inner surface and the outer surface of the 3D elements. The adoption of 3D elements is the mainstream and the trend of the appearance development of optical products at home and abroad at present, and the market demand is large. However, the existing optical element polishing machine (see fig. 3) can only polish pure plane optical elements and cannot polish 3D elements because the existing optical element polishing machine can only polish the pure plane optical elements and cannot polish the 3D elements because the upper workpiece disc F and the lower workpiece disc E rotate and the upper workpiece disc can only move in parallel left and right on the lower workpiece disc, the brush G of the upper workpiece disc is perpendicular to the bottom plane of the workpiece and can only polish the plane part of the 3D elements, the brush G is parallel to the folding plane, the folding plane a (see fig. 1), the round angle part B between the folding planes and the round angle part C between the folding planes and the bottom plane are not affected by the brush force at all, during the work, the parallel movement of the upper workpiece disc causes the brush to generate shearing action with the folding plane a, the brush is easy to be damaged, so that the brush cannot effectively polish the folding planes of the 3D elements, and the round angle part B between the folding planes and the round angle part C between the folding planes and the bottom plane are not completely polished, the polishing is still unqualified. Due to the shearing action of the brush and the folded surface, the edge of the folded surface of the 3D element is also subjected to stress concentration, the edge is excessively polished, and the phenomenon of edge collapse is often caused, so that the technical quality requirement cannot be met. The above phenomenon also occurs when polishing another surface of the 3D element. Since no equipment capable of meeting the polishing quality and quantity requirements of 3D elements is available, most manufacturers only adopt the existing plane polishing machine for processing, which is the current 3D element polishingThe commonly used approach.

It is reported that a polishing machine newly developed in korea can polish qualified mobile phone cover plates with two folded surfaces, so that the polishing of 3D elements with multiple folded surfaces is not feasible, and the polishing machine has the defects of low production efficiency and high cost, and can not meet the requirement of mass production of multiple varieties of 3D elements at home and abroad. Currently, we have developed a 3D optical element polishing machine, which is composed of 1, upper and lower disc spherical polishing mechanisms, 2, a first transmission mechanism, 3, a second transmission mechanism and other mechanisms, wherein the second transmission mechanism is used as the utility model discloses the official application is proposed, and other 1, 3 two mechanisms also have filed the application on the same day.

Disclosure of Invention

The main task and purpose of the present invention is to overcome the drawbacks of the current methods of processing 3D elements

And designing a second transmission mechanism of the polishing machine, wherein the second transmission mechanism is used for the 3D optical element polishing machine, and the upper disc of the workpiece is driven by a motor to swing forwards and backwards in a lower arc shape while rotating automatically. Fundamentally overcomes the phenomenon that 3D component polishing machining qualification rate is on the low side, reaches the technical quality that improves 3D component polishing comprehensively effectively, improves production efficiency, and reduce cost satisfies the demand of the many varieties mass production of 3D component.

The utility model discloses a main technical scheme: the transmission mechanism comprises a nut, a long central shaft, a central gear, a crank seat, a T-shaped screw, an eccentric gear, a cylinder, a connecting rod seat, a swinging shaft, a connector, a swinging arm, a hinge shaft, a pressure head, a waterproof cover, a guide rail support, a slide rod, an upper rotating disc, a linear bearing, a slide block, a gland, a porous bearing seat, a deep groove ball bearing, a gear seat, a large deep groove ball bearing, a tapered roller bearing, a support sleeve, a bearing inner gland, a bearing outer gland, a small aligning ball bearing, a screw, a spacer bush and a circular ring pad, and the concrete structure is that the central gear is arranged on the long central shaft and is fastened by the nut, the porous bearing seat is fixed on the upper rotating disc by the screw, the deep groove ball bearing is arranged in a hole of the porous bearing seat, the eccentric gear is arranged in an inner hole of the deep groove ball bearing, installing a T-shaped screw rod, wherein the T-shaped screw rod is installed on a crank seat through a small aligning ball bearing, the crank seat is connected with a connecting rod seat through a screw, a swinging shaft is installed in the connecting rod seat through a tapered roller bearing and a deep groove ball bearing, the connecting rod seat is connected with the swinging arm through a screw, the swinging arm is connected with a pressure head through a hinge shaft, a hole in the upper end of the pressure head is connected with a hole of a connecting head through a shaft, the connecting head is connected with a piston rod of an air cylinder, and the air cylinder is fixed on; two guide rail supports are installed on the upper rotating disc by screws in the middle of the long central shaft, two sliding rods are installed on the guide rail supports in parallel, linear bearings are installed on the two sliding rods respectively, sliding blocks are installed on the outer circle of each linear bearing and are pressed by a pressing cover, and the sliding blocks are connected with the oscillating shaft in a matched mode; in the lower part of long center pin, a ring pad is welded below the upper rotating disc, a bearing outer press cover is fixed on the ring pad, a gear seat is connected with the bearing outer press cover through screws, a large deep groove ball bearing is installed in an inner hole in the upper end of the gear seat, a supporting sleeve is installed in an inner hole of the large deep groove ball bearing, a tapered roller bearing is installed in an inner hole in the upper end of the supporting sleeve, the tapered roller bearing is compressed by an inner pressing cover of the bearing, and the long center pin penetrates through a spacer bush to be connected with the inner hole of the tapered roller.

The utility model discloses a proof on probation: reach the development purpose completely, the utility model is used for behind the 3D component burnishing machine, realized the comprehensive polishing to the component, eliminated the face of rolling over of 3D component, the fillet part of the face of rolling over can not polish or polish incomplete phenomenon. Making the polisher capable of polishing eighty-one at a time increases the yield from eighty-two percent to ninety-eight or more, and if the elements are smaller, the number of processes will be greater. The production efficiency is high, the technical quality is guaranteed, the polishing machine is an advanced polishing device at present, and the production requirement and the market requirement are met.

Drawings

The following describes in further detail embodiments of the present invention with reference to the accompanying drawings.

Fig. 1 is a schematic diagram of a front cover and a back cover of a four-sided folded mobile phone in a 3D device.

Fig. 2 is a schematic diagram of an arc bracelet in a 3D element.

Fig. 3 is a schematic diagram of a current polishing process for a 3D device.

Fig. 4 is a schematic structural diagram of the present invention.

Fig. 5 is a simple schematic view of the transmission of the C-direction crank and the connecting rod of the present invention.

Fig. 6 is a front view of the porous bearing housing 21 of the present invention.

Fig. 7 is a plan view of fig. 6.

Fig. 8 is a front view of the eccentric gear 6 according to the present invention.

Fig. 9 is a left side view of fig. 8.

Fig. 10 is a plan view of fig. 8.

Fig. 11 is a schematic diagram of the main structure of the 3D element polishing machine of the present invention.

Fig. 12 is a plan view taken along line a-a in fig. 11.

Detailed Description

With reference to fig. 4 and 1, the main technical solutions of the present invention are explained: the utility model is used for 3D optical element burnishing machine adds man-hour, when guaranteeing the rotation of work piece lower wall, the work piece hanging wall is arc swing back and forth under the drive of second drive mechanism, makes the fillet between the face A, the face of rolling over of 3D component divide B and the fillet between face and the bottom surface divide C polishing more fully. The utility model discloses contain nut 1, long center pin 2, sun gear 3, crank seat 4, T shape screw rod 5, eccentric gear 6 (see fig. 8, 9, 10), cylinder 7, connecting rod seat 8, oscillating axle 9, connector 10, oscillating arm 11, hinge pin 12, pressure head 13, buckler 14, guide rail support 15, slide bar 16, go up rotary disk 17, linear bearing 18, slider 19, gland 20, porous bearing frame 21 (see fig. 6, 7), deep groove ball bearing 22, gear seat 23, big deep groove ball bearing 24, tapered roller bearing 25, support sleeve 26, gland 27, bearing outer gland 28, little aligning ball bearing 29, screw 30, spacer 31, ring pad 32, concrete structure:

on the upper part of the long central shaft 2, a central gear 3 is mounted on the long central shaft 2 and fastened by a nut 1, and a plurality of holes are formed

A bearing seat 21 is fixed on the upper rotating disc 17 through a screw 30, a deep groove ball bearing 22 is arranged in a hole of the porous bearing seat, an eccentric gear 6 is arranged in the inner hole of the deep groove ball bearing, the eccentric gear is meshed with the central gear 3, a T-shaped screw rod 5 is arranged in a T-shaped groove in the end surface of the eccentric gear 6, the T-shaped screw rod is arranged on a crank seat 4 through a small centering ball bearing 29, the crank seat is connected with a connecting rod seat 8 through the screw 30, a swinging shaft 9 is arranged in the connecting rod seat through a conical roller bearing 25 and the deep groove ball bearing 22, the connecting rod seat 8 is connected with a swinging arm 11 through screws, the swinging arm is connected with a pressure head 13 through a hinge shaft 12, a hole in the upper end of the pressure head is connected with a hole of a connector 10;

in the middle of the long central shaft 2 (see fig. 5), two guide rail supports 15 are arranged on an upper rotating disc 17 by screws, two sliding rods 16 are arranged on the guide rail supports in parallel, linear bearings 18 are respectively arranged on the two sliding rods, sliding blocks 19 are arranged on the outer circles of the linear bearings and are pressed by a gland 20, and the sliding blocks are connected with the oscillating shaft 9 in a matching way;

a circular ring pad 32 is welded below the upper rotating disc 17 on the lower portion of the long central shaft 2, a bearing outer pressing cover 28 is fixed on the circular ring pad 32, the gear seat 23 is in screw connection with the bearing outer pressing cover 28, a large deep groove ball bearing 24 is installed in an inner hole in the upper end of the gear seat 23, a supporting sleeve 26 is installed in an inner hole of the large deep groove ball bearing, a tapered roller bearing 25 is installed in an inner hole in the upper end of the supporting sleeve and is pressed tightly by a bearing inner pressing cover 27, and the long central shaft 2 penetrates through a spacer 31 to be connected with the inner hole of the tapered roller bearing 25 in.

The utility model discloses all spare parts except that few parts are the special-purpose parts, other are standard component or common part.

Referring to fig. 4 and 5, the working principle of the present invention is as follows: the long central shaft 2 drives the central gear 3 to rotate under the driving of the main motor, the central gear 3 drives the nine eccentric gears 6 to rotate, the eccentric gears 6 drive the T-shaped screw rod 5, the crank seat 4, the connecting rod seat 8, the swing arm 11 and the pressure head 13 which are connected into a whole to do crank connecting rod motion (see figure 5), the slide block 19 is pushed to do reciprocating left and right motion, the end part of the pressure head 13 is made to do reciprocating elliptic track motion in the horizontal plane, (the pressure head 13 always applies a pressure to the upper workpiece disc under the action of the air cylinder 7), and therefore when the polishing machine works, the upper workpiece disc does lower arc-shaped swing.

Referring to fig. 11 and 12, the present invention has been used in a 3D element polishing machine (see the dashed line frame of fig. 11), the present invention is connected to an upper disc short shaft of the whole machine (connected to a short shaft 9 by a pressure head 13), connected to a motor of the whole machine, connected to a first transmission mechanism of the whole machine, nine crank link structures (see fig. 5) are equally installed in sequence around a main shaft and a support sleeve (see fig. 4) of the polishing machine, taking a front and a rear covers of a mobile phone with four-side folded edges in a 3D element as an example, the polishing machine has nine upper and lower disc spherical polishing mechanisms, each mechanism is provided with nine mobile phone cover plates, when in operation, all lower discs of workpieces rotate under the driving of the motor, spherical brush discs rotate in the same direction under the driving of friction force, the upper disc of the workpiece swings back and forth in an arc shape under the driving of a second transmission mechanism, so as to realize the full surface polishing, the qualification rate is more than ninety eight percent, and if the elements are smaller, the processing quantity is more, so that the 3D element polishing machine has high production efficiency, the polishing quality is guaranteed, and the polishing machine is the current advanced polishing equipment.

Claims

1. A second drive mechanism for a 3D optical element polisher, comprising: contain nut (1), long center pin (2), sun gear (3), crank seat (4), T shape screw rod (5), eccentric gear (6), cylinder (7), connecting rod seat (8), oscillating axle (9), connector (10), swing arm (11), hinge pin (12), pressure head (13), buckler (14), guide rail support (15), slide bar (16), go up rotary disk (17), linear bearing (18), slider (19), gland (20), porous bearing frame (21), deep groove ball bearing (22), gear seat (23), big deep groove ball bearing (24), tapered roller bearing (25), supporting sleeve (26), gland (27) in the bearing, bearing outer gland (28), little accent heart ball bearing (29), screw (30), spacer (31), ring pad (32), concrete structure:

on the upper part of a long central shaft (2), a central gear (3) is arranged on the long central shaft (2) and is fastened by a nut (1), a porous bearing seat (21) is fixed on an upper rotating disc (17) through a screw (30), a deep groove ball bearing (22) is arranged in a hole of the porous bearing seat, an eccentric gear (6) is arranged in an inner hole of the deep groove ball bearing, the eccentric gear is meshed with the central gear (3), a T-shaped screw rod (5) is arranged in a T-shaped groove on the end surface of the eccentric gear (6), the T-shaped screw rod is arranged on a crank seat (4) through a small centering ball bearing (29), the crank seat is connected with a connecting rod seat (8) through the screw (30), a swinging shaft (9) is arranged in the connecting rod seat through a conical roller bearing (25) and the deep groove ball bearing (22), the connecting rod seat (8) is connected with a swinging arm (11) through a screw, the swinging arm, the upper end hole of the pressure head is connected with the hole of the connector (10) through a shaft, the connector is connected with a piston rod of the air cylinder (7), and the air cylinder is fixed on the connecting rod seat (8) through a support;

two guide rail supports (15) are arranged on an upper rotating disc (17) at the middle part of a long central shaft (2) by using screws, two sliding rods (16) are arranged on the guide rail supports in parallel, linear bearings (18) are respectively arranged on the two sliding rods, a sliding block (19) is arranged on the excircle of each linear bearing and is pressed by a gland (20), and the sliding block is connected with a swinging shaft (9) in a matching way;

in the lower part of long center pin (2), go up the below welding a ring pad (32) of rotary disk (17), bearing outer gland (28) are fixed on ring pad (32), gear seat (23) and bearing outer gland (28) screw connection, install big deep groove ball bearing (24) in the hole of gear seat (23) upper end, big deep groove ball bearing's hole installation supporting sleeve (26), supporting sleeve's upper end hole installation tapered roller bearing (25), and compress tightly with bearing inner gland (27), long center pin (2) pass spacer (31) and tapered roller bearing (25) hole cooperation are connected.