CN111360687B

CN111360687B - Automatic grinding device

Info

Publication number: CN111360687B
Application number: CN201811601932.6A
Authority: CN
Inventors: 陈柏仰
Original assignee: Rexon Industrial Corp Ltd
Current assignee: Rexon Industrial Corp Ltd
Priority date: 2018-12-26
Filing date: 2018-12-26
Publication date: 2021-06-01
Anticipated expiration: 2038-12-26
Also published as: CN111360687A

Abstract

An automatic grinding device comprises a machine table unit, a profiling unit, a driving piece and a working unit. The board unit includes workstation and support frame, the profile modeling unit has the profile modeling section that is crooked form, the profile modeling section also is undulant along the second axial when extending along the primary shaft, the driving piece corresponding to the profile modeling unit and install in the support frame, the work unit is including receiving the driving piece drive energy is followed the gliding main part of primary shaft, and install in the grinding group of main part, main part can slide and the cover is located the profile modeling unit. The driving piece is started to drive the main body to be guided by the profiling section, and the grinding set is driven to generate relative fluctuation relative to the workbench along the second axial direction, so that the purpose of profiling grinding is achieved.

Description

Automatic grinding device

Technical Field

The present invention relates to a grinding apparatus, and more particularly, to an automatic grinding apparatus suitable for an object having a curved surface.

Background

A conventional spherical mirror grinder (taiwan certificate number M533554) includes a pushing mechanism and a swinging mechanism. The object to be ground is a cylindrical mirror and has a curved surface with curvature, the sliding mechanism is provided with a sliding table on a base, the sliding table is provided with a jig and a grinding dish, the swing mechanism is provided with a rotating shaft on an angle adjusting base body, one end of the rotating shaft is close to the sliding mechanism and is pivoted with a swing arm, two ends of an actuator are respectively pivoted on the rotating shaft and the swing arm, one end of the swing arm far away from the swing arm and pivoted with the rotating shaft is provided with a thimble above the sliding mechanism, and the thimble is supported at the middle position of the grinding dish by the bottom end of the thimble. When a motor of the swing mechanism is started and drives a swing block to rotate eccentrically, the rotating shaft is driven to rotate back and forth within a certain angle through reciprocating swing of the rocker arm, the rotating shaft drives the swing arm to rotate relative to the angle adjustment base, and the swing arm can drive the thimble and the grinding dish to slide back and forth relative to the curved surface of the ground object, so that the aim of grinding the mirror surface is fulfilled.

The grinding machine can only grind a curved surface with a fixed curvature on the same mirror surface, and cannot be applied to the situation that different parts of a ground object possibly have different fixed curvatures.

Disclosure of Invention

The invention aims to provide an automatic grinding device which can be applied to objects to be ground with different curvatures.

The automatic grinding device comprises a machine table unit, a profiling unit, a driving piece and a working unit, wherein the machine table unit comprises a workbench and a support frame arranged on one side of the workbench, the profiling unit extends along a first axial direction and is provided with a fixed end connected to the support frame, a tail end opposite to the fixed end along the first axial direction, and a curved profiling section arranged between the fixed end and the tail end, the profiling section also undulates relative to the fixed end and the tail end along a second axial direction intersecting with the first axial direction when extending along the first axial direction, the driving piece corresponds to the profiling unit and is arranged on the support frame, the working unit comprises a main body which is driven by the driving piece to slide along the first axial direction, and a guide piece which is arranged on the main body and is sleeved on the profiling unit, and the grinding group is arranged on the main body, and the guide piece is guided by the profiling section and can drive the main body and the grinding group to generate relative undulation relative to the workbench along the second axial direction.

The automatic grinding device further comprises a guide unit arranged between the driving piece and the working unit, wherein the guide unit comprises a guide plate arranged on the piston rod and extending along the second axial direction, and a plurality of rollers arranged on the main body along the second axial direction at intervals, the rollers abut against the guide plate, and when the main body and the grinding set generate relative fluctuation along the second axial direction relative to the workbench, the rollers roll relative to the guide plate.

The automatic grinding device comprises a pair of profiling members in a rod shape, and a limiting rod connected between the profiling members, wherein the fixed end, the tail end and the profiling section are arranged on each profiling member, a first distance between the fixed end of each profiling member and the workbench is smaller than a second distance between the tail end of each profiling member and the workbench, and each profiling member is also provided with a profiling surface extending from the fixed end to the tail end.

In the automatic grinding device, each profile element of the profile unit further has an abutting surface opposite to the profile surface, and the guide element of the working unit has a pair of upper guide wheels respectively abutting against the profile surface of the profile element and a pair of lower guide wheels respectively abutting against the abutting surface.

In the automatic grinding device, the machine table unit further comprises a guide rail piece arranged on the support frame, the guide rail piece is provided with an arc-shaped rail, and the grinding set is provided with a machine head pivoted to the main body, a connecting piece connected to the machine head and a pulley which is axially arranged on the connecting piece, can slide and penetrates through the rail.

The automatic grinding device comprises a worktable of a machine table unit, a support frame, a guide rail piece and a profiling unit, wherein the worktable of the machine table unit is provided with a first lateral edge and a second lateral edge opposite to the first lateral edge along the first axial direction, the guide rail piece is provided with a pair of lateral plates fixedly arranged on the support frame and a pair of arc-shaped rails respectively arranged on the lateral plates, each rail is provided with a lower end approaching to the second lateral edge of the worktable and a higher end opposite to the lower end approaching to the profiling unit, and the rails gradually extend from the second lateral edge to the first lateral edge when extending from the lower end to the higher end.

The supporting frame of the machine table unit is provided with a pair of upright columns extending along the second axial direction and fixedly arranged on the workbench, positioning seats capable of moving along the second axial direction and sleeved on the upright columns, a connecting plate connected between the top ends of the upright columns, and a guide screw rod axially arranged on the connecting plate and screwed on the positioning seats, wherein the profiling unit is arranged on the positioning seats, and drives the guide screw rod to rotate so as to drive the positioning seats and the profiling unit to lift relative to the workbench along the second axial direction.

In the automatic grinding device, the main body of the working unit is provided with an upper seat, a lower seat arranged on one side of the upper seat along the second axial direction, and a buffer group connected between the upper seat and the lower seat, the guide piece is arranged on the upper seat, the grinding group is arranged on the lower seat, the buffer group is provided with a plurality of outer tubes fixed on the lower seat, a plurality of guide pins fixed on the upper seat and capable of sliding along the second axial direction and penetrating in the outer tubes, and a plurality of springs respectively sleeved outside the outer tubes and the guide pins and elastically abutted between the upper seat and the lower seat, and the elasticity of the springs keeps the trend that the lower seat and the upper seat are kept away from each other.

The invention has the beneficial effects that: by utilizing integral matching and starting the driving piece, the main body can be driven to be guided by the profiling section and drive the grinding group to generate relative fluctuation relative to the workbench along the second axial direction, so that the purpose of profiling grinding is achieved, and the grinding device can be suitable for ground objects with different curvatures.

Drawings

FIG. 1 is a perspective assembly view of one embodiment of the automated milling assembly of the present invention;

FIG. 2 is a partially exploded perspective view of the embodiment;

FIG. 3 is a front sectional view of the embodiment;

FIG. 4 is a schematic cross-sectional view taken along line IV-IV in FIG. 3;

FIG. 5 is an operational schematic diagram of the embodiment;

fig. 6 is another operational schematic of this embodiment.

Detailed Description

The invention is described in detail below with reference to the following figures and examples:

referring to fig. 1 and 2, an embodiment of the automatic polishing apparatus of the present invention is adapted to polish an object 1 to be polished having a curved surface 101, the object 1 to be polished of the present embodiment is an example of a motion device column having an olive-shaped cross section, and the automatic polishing apparatus includes a machine unit 10, a profiling unit 20, a driving member 30, a working unit 40, and a guiding unit 50.

The machine unit 10 includes a worktable 11, a plurality of jigs 12 installed on the worktable 11 and capable of clamping and positioning the object to be ground 1, a supporting frame 13 disposed on one side of the worktable 11 along a first axial direction i, and a guide rail 14 fixedly disposed on the supporting frame 13. The workbench 11 has a first side edge 111, and a second side edge 112 opposite to the first side edge 111 along the first axial direction I, the support frame 13 has a pair of upright posts 131 extending along a second axial direction ii perpendicular to the first axial direction I and fixedly disposed on the workbench 11, a positioning seat 132 moving along the second axial direction ii and sleeved on the upright posts 131, a connecting plate 133 connected between the top ends of the upright posts 131, a lead screw 134 axially disposed on the connecting plate 133 and threadedly disposed on the positioning seat 132, and a hand wheel 135 fixed on the lead screw 134, and rotation of the hand wheel 135 can drive the lead screw 134 to rotate and drive the positioning seat 132 to lift relative to the workbench 11 along the second axial direction ii. The rail member 14 has a pair of side plates 141 fixed to the positioning seat 132, and a pair of curved rails 142 respectively disposed on the side plates 141, each rail 142 has a lower end 143 close to the second side edge 112 of the worktable 11, and a higher end 144 opposite to the lower end 143 and close to the connecting plate 133 and the profiling unit 20, and the rails 141 extend from the second side edge 112 to the first side edge 111 gradually as they extend from the lower end 143 to the higher end 144.

The profiling unit 20 extends along the first axial direction I and has a pair of profiling members 21 in a rod shape, and a limiting rod 22 connected between the profiling members 21, each profiling member 21 has a fixed end 211 detachably locked to the positioning seat 132, an end 212 opposite to the fixed end 211 along the first axial direction I and intersecting with the limiting rod 22, a curved profiling section 213 between the fixed end 211 and the end 212, a profiling surface 214 extending from the fixed end 211 to the end 212, and an abutting surface 215 opposite to the profiling surface 214 along the second axial direction ii, each profiling section 213 also undulates relative to the fixed end 211 and the end 212 along the second axial direction ii when extending along the first axial direction I, and a curve of the profiling section 213 corresponds to the curved surface 101 of the object 1 to be polished. As shown in fig. 3, a first distance H1 between the fixed end 211 of the cam 21 of the present embodiment and the table 11 is less than a second distance H2 between the end 212 and the table 11.

The driving member 30 corresponds to the profiling unit 20 and is mounted on the supporting frame 13, and the driving member 30 of the embodiment adopts a pressure cylinder and has a cylinder 31 mounted on the positioning seat 132 and a piston rod 32 capable of extending and contracting relative to the cylinder 31.

The working unit 40 includes a main body 41 driven by the driving member 30 to slide along the first axial direction I, a guiding member 42 disposed on the main body 41 and sleeved on the profiling unit 20, and a grinding assembly 430 installed between the main body 41 and the rail member 14. The main body 41 has an upper seat 43, a lower seat 44 disposed on one side of the upper seat 43 along the second axial direction ii, and a buffer set 45 connected between the upper seat 43 and the lower seat 44, wherein the buffer set 45 has a plurality of outer tubes 451 fixed to the lower seat 44, a plurality of guide pins 452 fixed to the upper seat 43 and capable of sliding along the second axial direction ii and passing through the outer tubes 451, and a plurality of springs 453 respectively sleeved outside the outer tubes 451 and the guide pins 452 and elastically abutting between the upper seat 43 and the lower seat 44, and the elastic force of the springs 453 constantly keeps the lower seat 44 and the upper seat 43 away from each other (refer to fig. 3 and 4). The guiding element 42 has a pair of upper guide wheels 421 axially disposed on the upper seat 43 and respectively abutting against the cam surfaces 214 of the cam 21, and a pair of lower guide wheels 422 respectively abutting against the abutting surfaces 215. The grinding group 430 has a head 431 pivotally connected to the lower base 44, a connecting member 432 connected to the head 431, and a pulley 433 axially disposed on the connecting member 432 and capable of sliding and passing through the rail 142, the head 431 has a power member 434 (motor), and a grinding wheel 435 driven by the power member 434, the guiding member 42 is guided by the profiling section 213, and can drive the main body 41 and the grinding group 430 to generate relative undulation along the second axial direction ii with respect to the working table 11 and the object 1 to be ground.

The guiding unit 50 is installed between the driving member 30 and the working unit 40, the guiding unit 50 includes a guiding plate 51 installed on the piston rod 32 and extending along the second axial direction ii, and a plurality of rollers 52 axially spaced along the second axial direction ii and disposed on the main body 41, wherein the rollers 52 abut against the guiding plate 51.

For a further understanding of the invention, its role, the technical means employed, and the efficacy attained by its cooperation, it is believed that the invention will be more fully and specifically understood from the following description.

As shown in fig. 1 and fig. 3, the main body 41 of the working unit 40 is located between the profiling section 213 and the fixed end 211, the piston rod 32 of the driving member 30 is in a retracted state relative to the cylinder 31, the grinding wheel 435 of the grinding set 430 is closest to the supporting frame 13, the pulley 433 is located at the lower end 143 of the track 142, and at this time, the grinding wheel 435 is closer to the worktable 11 and corresponds to one side of the object 1 to be ground.

As shown in fig. 5, when the power element 434 of the working unit 40 is activated and drives the grinding wheel 435 to rotate, the piston rod 32 of the driving element 30 is also activated to extend relative to the cylinder 31, the piston rod 32 pushes the working unit 40 to move integrally along the first axial direction I and from the fixed end 211 to the end 212, at this time, the upper guide wheel 421 of the guide member 42 is guided by the profiling surface 214, and the lower guide wheel 422 abuts against the abutting surface 215, the guide member 42 drives the main body 41 to move along the second axial direction ii according to the curvature change of the profiling section 213 of the profiling member 21, and the main body 41 further drives the grinding wheel 435 of the grinding set 430 to perform grinding operation along the curved surface 101 of the object 1 to be ground. Meanwhile, the pulley 433 of the working unit 40 is guided by the rail 142 to ascend from the lower end 143 to the upper end 144, and the contact area between the end surface of the grinding wheel 435 and the curved surface 101 of the object 1 is kept constant.

When the grinding wheel 435 grinds the curved surface 101 of the object 1 to be ground, the cushion group 45 is provided and the spring action of the spring 453 causes a preload action when the grinding wheel 435 is brought into contact with the object 1 to be ground, so that the grinding wheel 435 is constantly kept in contact with the object 1 to be ground (see fig. 4).

As shown in fig. 6, when the piston rod 32 of the driving member 30 continues to extend relative to the cylinder 31, the piston rod 32 pushes the working unit 40 to approach the end 212, and at this time, the upper guide wheel 421 of the guiding member 42 is guided by the contoured surface 214 to drive the main body 41 to move along the second axial direction ii relative to the working table 11, and the main body 41 further drives the grinding wheel 435 of the grinding set 430 to perform a grinding operation along the second axial direction ii and along the curved surface 101 of the object 1 to be ground. At the same time, the pulley 433 of the working unit 40 is guided by the rail 142 to move the high end 144.

Referring to fig. 4 again, while the working unit 40 moves along the cam 21, because the main body 41 is lifted along the second axis ii, the main body 41 can be guided along a fixed lifting and lowering path by the arrangement of the guiding unit 50 and the rolling action of the roller 52 relative to the guiding plate 51, thereby ensuring the stability of the head 431.

Therefore, as shown in fig. 3, 5 and 6, the guiding member 42 of the working unit 40 is guided by the profiling member 21 by the driving member 30, so as to drive the polishing group 430 to generate a desired polishing path according to the shape of the profiling section 213, thereby generating a desired polishing effect for different portions of the object to be polished having different contour shapes. When the objects 1 to be polished with different curved surfaces 101 are to be polished, only different copying pieces 21 need to be replaced, and the applicability is quite wide.

And for the object 1 to be polished with different thickness specifications or different types of object 1 to be polished, the handwheel 135 can be operated in addition to replacing different cams 21, and the positioning seat 132 is driven to lift along the second axial direction ii, so as to be suitable for the object 1 to be polished with different scales or types.

In summary, the automatic polishing apparatus of the present invention can be applied to objects to be polished having different curved surfaces by using the overall matching, and is simple in operation and easy to manufacture, thereby achieving the object of the present invention.

Claims

1. The utility model provides an automatic grinding device, contains board unit, profile modeling unit, driving piece and work unit, its characterized in that:

the machine table unit comprises a workbench and a support frame arranged on one side of the workbench;

the profiling unit extends along a first axial direction, and is provided with a fixed end connected to the support frame, a tail end opposite to the fixed end along the first axial direction, and a curved profiling section arranged between the fixed end and the tail end, and when the profiling section extends along the first axial direction, the profiling section also undulates relative to the fixed end and the tail end along a second axial direction intersecting with the first axial direction;

the driving piece corresponds to the profiling unit and is arranged on the supporting frame;

the work unit, including receive driving piece drive ability edge first axial gliding main part, set up in main part and cover are located the guide piece of profile modeling unit, and install in the grinding group of main part, the guide piece receives the guide of profile modeling section can drive the main part with the grinding group is followed the second axial is for the workstation produces relative undulation.

2. The automated grinding apparatus of claim 1, wherein: the automatic grinding device comprises a support frame, a driving piece, a guide unit, a plurality of rollers and a grinding group, wherein the driving piece is provided with a pressure cylinder, the cylinder body is arranged on the support frame, the piston rod can stretch relative to the cylinder body, the automatic grinding device further comprises a guide unit arranged between the driving piece and the working unit, the guide unit comprises a guide plate arranged on the piston rod and extending along the second axial direction, and the rollers are axially arranged on the main body along the second axial direction at intervals, the rollers are abutted against the guide plate, and when the main body and the grinding group generate relative fluctuation relative to the workbench along the second axial direction, the rollers roll relative to the guide plate.

3. The automated grinding apparatus of claim 1, wherein: the profile modeling unit includes a pair of bar-shaped profile parts that are, and connect in gag lever post between the profile parts, the stiff end the end with the profile modeling section sets up in each profile part, and the stiff end of each profile part with first distance between the workstation is less than the end with second distance between the workstation, each profile part still have by the stiff end extends to terminal profile face.

4. The automated grinding apparatus of claim 3, wherein: each profile element of the profile unit further has an abutting surface opposite to the profile surface, and the guide element of the working unit has a pair of upper guide wheels abutting against the profile surface of the profile element, respectively, and a pair of lower guide wheels abutting against the abutting surface, respectively.

5. The automated grinding apparatus of claim 1, wherein: the board unit still including set up in the guide rail spare of support frame, the guide rail spare has and is curved track, grinding group have the pin joint in the aircraft nose of main part, connect in the connecting piece of aircraft nose, and the axle is located the connecting piece just can slide and wear to locate orbital pulley.

6. The automated grinding apparatus of claim 5, wherein: the workbench of the machine table unit is provided with a first lateral edge and a second lateral edge opposite to the first lateral edge along the first axial direction, the guide rail piece is provided with a pair of side plates fixedly arranged on the supporting frame and a pair of arc-shaped rails respectively arranged on the side plates, each rail is provided with a low end approaching to the second lateral edge of the workbench and a high end opposite to the low end approaching to the profiling unit, and the rails gradually extend from the second lateral edge to the first lateral edge when extending from the low end to the high end.

7. The automated grinding apparatus of claim 1, wherein: the support frame of the machine table unit is provided with a pair of stand columns which extend along the second axial direction and are fixedly arranged on the workbench, positioning seats which can move along the second axial direction and are sleeved on the stand columns, a connecting plate which is connected between the top ends of the stand columns, and a guide screw which is axially arranged on the connecting plate and is screwed on the positioning seats, wherein the profiling unit is arranged on the positioning seats and drives the guide screw to rotate to drive the positioning seats and the profiling unit to lift relative to the workbench along the second axial direction.

8. The automated grinding apparatus of claim 1, wherein: the main part of work unit has the seat of honour, follows the second axial set up in the lower of seat of honour one side, and connect in the seat of honour with buffer group between the lower, the guide set up in the seat of honour, grind the group install in the lower seat, buffer group has several fixed in the outer tube of lower seat, several fixed in the seat of honour and can follow the second axial slides and wear to locate guide pin in the outer tube to and several cover respectively locate the outer tube with the guide pin outside and bullet support in the seat of honour with the spring between the lower seat, the elasticity of spring is permanent makes the lower seat with the trend that the seat of honour keeps away from.