CN214519551U

CN214519551U - Workpiece disc turning device

Info

Publication number: CN214519551U
Application number: CN202120196995.9U
Authority: CN
Inventors: 许亮; 陈永福
Original assignee: Yuhuan Cnc Machine Tool Co ltd
Current assignee: Yuhuan Cnc Machine Tool Co ltd
Priority date: 2021-01-25
Filing date: 2021-01-25
Publication date: 2021-10-29
Anticipated expiration: 2031-01-25

Abstract

The utility model discloses a workpiece disc overturning device, which comprises an overturning frame which is arranged on a lifting mechanism and can be overturned by being driven by an overturning driving mechanism and is provided with two working faces, and a plurality of groups of workpiece disc assemblies which are arranged on the overturning frame and are positioned on each working face; each group of workpiece disc assemblies comprises workpiece discs which are driven by a constant-pressure driving device to move up and down along the roll-over stand and are driven to rotate by a rotary driving device. The utility model provides a polishing pressure is applyed to the work piece dish to every group work piece dish subassembly adoption solitary constant voltage cylinder respectively, can make each work piece that is in operating condition receive the same pressure respectively, can overcome between each work piece dish because of height error and depth of parallelism error, can't make the work piece and the polishing dish defect of carrying out the polishing of laminating completely to guarantee that each work piece polishing pressure is even, guarantee that the workpiece surface fully polishes, improve polishing precision and quality.

Description

Workpiece disc turning device

Technical Field

The utility model belongs to the burnishing machine, concretely relates to work piece dish turning device.

Background

With the development of industrial manufacturing technology and the reduction of the weight and the size of articles required by people for life and work, a plurality of glass, metal, ceramic and other parts needing polishing are thinner and thinner; in addition, due to the large-scale industrial manufacturing, the end face of the product needs to be polished with higher efficiency and higher precision, and a single-side polishing process is adopted, such as an overturning polishing machine which utilizes the overturning of an upper workpiece disc to polish the single side of the workpiece. The traditional double-station turnover polishing machine comprises a workpiece disc and a polishing disc, wherein the workpiece disc is arranged on the upper part, and the polishing disc is arranged on the lower part. The workpiece disc is driven to rotate by a servo motor with a speed reducer, the workpiece disc is installed on a roll-over stand, the roll-over stand is provided with A, B two surfaces, a plurality of independent workpiece discs are respectively arranged on the two surfaces, the roll-over stand is driven to turn over by the servo motor, and the servo motor drives a screw rod mechanism to move up and down to drive the workpiece disc to move so as to realize workpiece feeding.

The traditional double-station turnover polishing machine has the following defects:

the polishing device is characterized in that each station is provided with a plurality of independent workpiece disks, height errors and parallelism errors exist among the workpiece disks, so that a workpiece cannot be completely attached to a polishing disk (a lower disk) for polishing, the workpiece can only be kept in contact with a polishing surface of the workpiece through a consumable with high elasticity, but the uniformity of polishing pressure is poor, the roughness value of the surface of the workpiece can only be reduced through polishing, good surface type precision cannot be formed, and the polishing precision is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a can guarantee that each work piece polishing pressure is even, improve polishing quality's work piece dish turning device.

Realize the utility model discloses the technical scheme of purpose is:

the utility model provides a workpiece disc overturning device, which comprises an overturning frame which is arranged on a lifting mechanism and can be overturned by being driven by an overturning driving mechanism and is provided with two working faces, and a plurality of groups of workpiece disc assemblies which are arranged on the overturning frame and are positioned on each working face; each group of workpiece disc assemblies comprises workpiece discs which are driven by a constant-pressure driving device to move up and down along the roll-over stand and are driven to rotate by a rotary driving device.

The work piece dish is the vacuum adsorption work piece dish, constant voltage drive arrangement is the constant pressure cylinder, rotary driving device is speed reducer and the work piece dish driving motor who is connected with the speed reducer, the speed reducer with fix on the roll-over stand the piston rod of constant voltage cylinder is connected and can be connected with reciprocating through the sliding guide pair on the roll-over stand, the output shaft of speed reducer adopts the cavity to run through the axle, the one end of output shaft pass through the universal joint bearing with the work piece dish is connected, vacuum rotary joint is connected to the other end of output shaft.

The turnover driving mechanism comprises a turnover motor and a turnover shaft, the turnover shaft and a turnover frame in the workpiece disc turnover device are fixedly connected into a whole in a left-right penetrating manner, two ends of the turnover shaft are respectively connected to lifting seats in lifting mechanisms at two sides of the rack through slewing bearings, the turnover motor is arranged on the lifting seat at one side, and the turnover motor is connected with the turnover shaft; a braking device is arranged at one end of the turnover shaft, which is far away from the turnover motor, and is used for holding and fixing the turnover shaft to prevent the workpiece disc turnover device from rotating after the workpiece disc turnover device is turned to a set position; the turnover shaft is also provided with a turnover buffer block which is matched with a buffer arranged on a lifting seat of the frame lifting mechanism, so that the rotation prevention and buffering functions of the workpiece disc turnover device are realized.

Has the advantages that:

the utility model provides a polishing pressure is applyed to the work piece dish to every group work piece dish subassembly adoption solitary constant voltage cylinder respectively, can make each work piece that is in operating condition receive the same pressure respectively, can overcome between each work piece dish because of height error and depth of parallelism error, can't make the work piece and the polishing dish defect of carrying out the polishing of laminating completely to guarantee that each work piece polishing pressure is even, guarantee that the workpiece surface fully polishes, improve polishing precision and quality.

The present invention will be further explained with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic view of a double-station turnover polishing machine adopting the utility model.

Fig. 2 is a left side view of fig. 1.

Fig. 3 is a cross-sectional view along AA of fig. 1.

Fig. 4 is a schematic structural view of the workpiece tray turnover device of the present invention.

Fig. 5 is a plan view of the workpiece tray reversing device.

Fig. 6 is a cross-sectional view taken along the direction BB of fig. 4.

Detailed Description

Referring to fig. 1-6, the double-station turnover polishing machine of the present invention comprises a frame 1, a lower disc device 2 and a lifting mechanism 3 arranged on the frame 1, and a workpiece disc turnover device 4 arranged above the lower disc device 2 and driven by the lifting mechanism 3 to move up and down; the workpiece disc overturning device 4 comprises an overturning frame 402 which is arranged on the lifting mechanism 3 and is driven by an overturning driving mechanism to overturn and is provided with two working surfaces A, B, and a plurality of groups of workpiece disc assemblies 401 which are arranged on the overturning frame 402 and are positioned on each working surface; every group work piece dish subassembly 401 includes work piece dish 40101, universal joint bearing 40102, speed reducer 40103, work piece dish driving motor 40104, constant voltage cylinder 40105, vacuum rotary joint 40106, speed reducer 40103 can connect on roll-over stand 402 through the sliding guide pair with reciprocating, work piece dish 40101 is vacuum adsorption work piece dish, speed reducer 40103 is the right angle speed reducer of customization, the output shaft adopts the cavity to run through the axle, the working face that the roll-over stand was passed to the one end of output shaft passes through universal joint bearing 40102 is connected with work piece dish 40101, vacuum rotary joint 40106 is connected to the other end of output shaft, work piece dish driving motor 40104 is connected to speed reducer 40103 input shaft end, the one end that work piece was kept away from to speed reducer 40103 is connected with the piston rod of constant voltage cylinder 40105, constant voltage cylinder 40105 passes through the cylinder mount pad to be fixed on roll-over stand 402.

Referring to fig. 1, the lower disc device 2 comprises a rotary support 202, a polishing disc 201 and a driving motor 203, wherein the polishing disc 201 is mounted on the frame 1 through the rotary support 202 and is driven to rotate by the driving motor 203 fixed at the bottom of the frame 1.

Referring to fig. 1 and 3, there are two sets of lifting mechanisms 3, which are respectively disposed on the left and right sides of the frame 1, and each set of lifting mechanism includes two upright posts 305, a lifting motor 301, a lifting screw pair 302, a linear guide device 303, and a lifting base 304; two upright posts 305 are arranged on a rack 1 in parallel along the front and back positions of the rack, linear guide devices 303 are arranged on the inner sides of the two upright posts 305, two sides of a lifting seat 304 are respectively connected with a slide block of the linear guide devices 303 and can slide up and down along the linear guide devices 303, a lifting motor 301 is arranged on the lower side of the upright posts 305, an output shaft of the lifting motor 301 is connected with a screw rod of a lifting screw rod pair 302 through a coupler, and a nut seat of the lifting screw rod pair 302 is fixed on the lifting seat 304; left and right lifting motors 301 in the two sets of lifting mechanisms are controlled by a PLC to synchronously operate to drive left and right screw rods to rotate so as to drive lifting seats 304 on the left and right sides of the rack 1 to synchronously move up and down.

The linear guide 303 is a linear guide pair.

See fig. 1, fig. 3, the upset actuating mechanism includes upset motor 6, trip shaft 5, and the roll-over stand 402 in trip shaft 5 and the work piece dish turning device 4 is run through about and is linked firmly as an organic whole, and both ends are connected on the lift seat 304 in the 1 both sides elevating system 3 of frame through slewing bearing respectively about trip shaft 5, and upset motor 6 installs on the lift seat 304 of one side wherein, the output shaft of upset motor 6 passes through the shaft coupling and is connected with trip shaft 5 to the upset of drive trip shaft 5 rotation realization work piece dish turning device 4.

As shown in fig. 1, a braking device 7 (an electromagnetic brake) is arranged at one end of the turning shaft 5 far away from the turning motor, and is used for holding and fixing the turning shaft 5 to prevent the turning shaft 5 from rotating after the workpiece disc turning device 4 is turned to a set position; the turnover shaft 5 is also provided with a turnover buffer block 8 which is matched with a buffer 9 arranged on the lifting seat 304 at the other side (see figure 2) to realize the rotation prevention and buffering functions of the workpiece disc turnover device 4.

When the double-station turnover polishing machine works, a vacuum system is connected into the rotary joints 40106 of the workpiece disc assemblies 401 and is connected to the workpiece disc 40101 through the hollow output shaft of the speed reducer 40103, and workpieces are adsorbed on the workpiece disc 40101 through the vacuum system. After the lifting mechanism 3 drives the workpiece disc turning device 4 to rise to a turning position, the turning frame 402 is driven to turn by the turning driving mechanism, when a working surface A (B) of the turning frame 402 faces the polishing disc 201, the lifting mechanism 3 drives the workpiece disc turning device 4 to move downwards, so that a certain gap is kept between a workpiece disc 40101 on the working surface A (B) and the polishing disc 201, at the moment, a constant pressure cylinder 40105 of each workpiece disc assembly 401 pushes a speed reducer 40103 and the workpiece disc 40101 to move up and down along the turning frame 402 to apply pressure to the surface of the workpiece under the set pressure, the universal joint bearing automatically adjusts the angle along with the workpiece disc 40101 to ensure that the surface of the workpiece is uniformly attached to the polishing disc 201, and because each workpiece in a working state is respectively subjected to the same pressure, the defect that the workpiece cannot be completely attached to the polishing disc due to height error and parallelism error between the workpiece discs, thereby ensuring that the polishing pressure of each workpiece is even, ensuring that the surface of the workpiece is fully polished, and improving the polishing precision and quality.

Claims

1. A workpiece disc overturning device is characterized by comprising an overturning frame which is arranged on a lifting mechanism and can be overturned by being driven by an overturning driving mechanism, and a plurality of groups of workpiece disc assemblies which are arranged on the overturning frame and are positioned on each working surface; each group of workpiece disc assemblies comprises workpiece discs which are driven by a constant-pressure driving device to move up and down along the roll-over stand and are driven to rotate by a rotary driving device.

2. The workpiece tray turnover device according to claim 1, wherein the workpiece tray is a vacuum adsorption workpiece tray, the constant pressure driving device is a constant pressure cylinder, the rotary driving device is a speed reducer and a workpiece tray driving motor connected with the speed reducer, the speed reducer is connected with a piston rod of the constant pressure cylinder fixed on the turnover frame and is connected to the turnover frame in a manner of being capable of moving up and down through a sliding guide rail pair, an output shaft of the speed reducer adopts a hollow penetrating shaft, one end of the output shaft is connected with the workpiece tray through a universal joint bearing, and the other end of the output shaft is connected with a vacuum rotary joint.

3. The workpiece tray turnover device according to claim 1 or 2, wherein the turnover driving mechanism comprises a turnover motor and a turnover shaft, the turnover shaft is fixedly connected with a turnover frame in the workpiece tray turnover device in a left-right penetrating manner, two ends of the turnover shaft are respectively connected with lifting seats in lifting mechanisms on two sides of the machine frame through rotary bearings, the turnover motor is mounted on the lifting seat on one side of the machine frame, and the turnover motor is connected with the turnover shaft.