CN214080673U

CN214080673U - Horizontal moving assembly for lens processing

Info

Publication number: CN214080673U
Application number: CN202022978677.6U
Authority: CN
Inventors: 校利凯; 宁庆华
Original assignee: II VI Optics Suzhou Co Ltd
Current assignee: II VI Optics Suzhou Co Ltd
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2021-08-31
Anticipated expiration: 2030-12-10

Abstract

The utility model discloses a horizontal migration subassembly for lens processing, include: the linear guide rail is arranged on the base plate, and two ends of the linear guide rail are fixedly connected with the base plate through the supporting seat; the linear bearing is sleeved on the linear guide rail, the sliding table is arranged on the linear bearing and connected to the horizontal driving module, and the horizontal driving module drives the sliding table to horizontally move on the linear guide rail; the horizontal driving module comprises a third motor, a rotary table and a connecting rod, the rotary table is connected to the third motor, the third motor drives the rotary table to rotate, the rotary table is connected with the sliding table through the connecting rod, one end of the connecting rod is connected to the rotary table, and the other end of the connecting rod is connected to the sliding table. In this way, the utility model discloses utilize slider-crank mechanism principle to realize horizontal migration, compare in cylinder or motor direct drive, this horizontal migration subassembly continuity is good for horizontal migration operates steadily, and is little to the impact of slip table at the removal in-process.

Description

Horizontal moving assembly for lens processing

Technical Field

The utility model relates to a lens processing technology field especially relates to a horizontal migration subassembly for lens processing.

Background

At present, in the market, the lens with the brewster angle (as shown in fig. 1) is formed, and generally, a method of cutting the outer circle of a bar stock is adopted to machine the lens with the brewster angle. During processing, the included angle between the cutting sheet and the bar stock is the Brewster angle (22.6 degrees). In the conventional brewster lens processing, there are generally two methods: firstly, double-plane polishing is carried out, and then an inclined rounding method is carried out, so that a lens with a Brewster angle is processed; and secondly, processing the bar stock, cutting an elliptical sheet with a Brewster angle, then bonding and hanging the plate, and performing classical plane polishing processing. The second method is generally used for processing the lens, and the first method is very little because the first method needs to tilt the lens by a Brewster angle, bond the lens on a clamp in a single or multiple mode, and carry out rounding, and is limited by the width of a grinding wheel.

In the second method, the elliptic lens with the Brewster angle is cut by adopting a conventional bar stock, then the lens is bonded and hung, and then the milling and polishing are carried out by adopting a classical method. The method is suitable for the condition that the work inclination angle is relatively large, such as the condition that the normal inclination angle is more than 40 degrees. If a looser lens material is processed, large chippings are more likely to occur. In addition, for single grain bonding or multiple grain bonding on a rounding fixture, the inclination of the fixture is a Brewster angle, and the rounding machine is used for processing, a very wide diamond grinding wheel is needed, the width of the diamond grinding wheel is at least more than 40mm, and the common rounding machine has no way to meet the requirement at all. This also results in most lenses of this type being processed only after cutting and in classical handling, and this method is very difficult to achieve and yields are very poor for lenses with small angles. The standard Brewster angle is 22.6 degrees, and when the lens with the small angle is processed, the problem of broken edges is difficult to solve by a common processing method, and in addition, the angle error is large. Especially for brittle materials, the processing difficulty is more difficult.

In the process of processing the lens, the lens is required to be moved so that the lens and a workpiece generate relative displacement to realize the processing effect, the traditional lens moving device is generally directly driven by a cylinder or a motor, the pause time in the horizontal moving process is long by the cylinder or the direct drive, the operation is not stable, and the impact force on the lens is large.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the main technical problem who solves provides a horizontal migration subassembly for lens processing, can make horizontal migration operate steadily, and is little to the impact of slip table at the removal in-process.

In order to achieve the above object, the technical solution of the present invention is:

a horizontal motion assembly for lens processing, comprising: the linear guide rail is arranged on the base plate, and two ends of the linear guide rail are fixedly connected with the base plate through the supporting seat; the linear bearing is sleeved on the linear guide rail, the sliding table is arranged on the linear bearing and connected to the horizontal driving module, and the horizontal driving module drives the sliding table to horizontally move on the linear guide rail; the horizontal driving module comprises a third motor, a rotary table and a connecting rod, the rotary table is connected to the third motor, the third motor drives the rotary table to rotate, the rotary table is connected to the sliding table through the connecting rod, one end of the connecting rod is connected to the rotary table, and the other end of the connecting rod is connected to the sliding table.

Preferably, the horizontal driving module further comprises a connecting block and a pin, the connecting block is arranged on the sliding table, a pin hole is formed in the connecting block, the pin is arranged on the connecting block, the connecting rod is inserted on the pin, and the connecting rod is rotatably connected with the pin.

Preferably, the substrate is made of stainless iron.

Preferably, the turntable is provided with a connecting shaft, the connecting shaft is screwed on the turntable, and a bearing is sleeved on the connecting shaft; the inner ring of the bearing is arranged on the connecting shaft, the outer ring of the bearing is arranged on the connecting rod, and the bearing is axially fixed through the clamping ring.

Preferably, at least two linear bearings are arranged on the same linear guide rail.

Preferably, still include the key, be provided with the keyway on the carousel, the key sets up in the keyway, the carousel passes through with the third motor the key-type connection.

Preferably, the third motor is mounted on the substrate by a fixing screw.

Because of above-mentioned technical scheme's application, compared with the prior art, the utility model has the following beneficial effect:

the utility model provides a horizontal migration subassembly for lens processing forms slider-crank mechanism through horizontal drive module and slip table, utilizes slider-crank mechanism principle to realize horizontal migration, compares in cylinder or motor direct drive, and this horizontal migration subassembly's continuity is good for horizontal migration operates steadily, and it is little to the impact of slip table at the removal in-process.

Drawings

Fig. 1 is a schematic diagram of the brewster lens of the present invention.

Fig. 2 is a schematic view of a horizontal movement assembly for lens processing according to the present invention.

Fig. 3 is a schematic view of the present invention, wherein the horizontal moving component for lens processing is applied to a lens processing device.

Fig. 4 is a schematic view of a second motor and vertical motion assembly in a lens processing apparatus.

Fig. 5 is a schematic view of a clamping unit in the lens processing apparatus.

Fig. 6 is an enlarged view at a in fig. 5.

Fig. 7 is an enlarged view at B in fig. 5.

Description of reference numerals:

a grinding wheel 1;

the clamping unit 2, the base 21, the driving shaft 22, the fixing groove 221, the cross groove 222, the clamping bearing 23, the bonding rod 24, the fastening nut 25, the limiting block 26, the limiting nut 27, the end cover 28 and the sealing ring 29;

a drive unit 3, a first motor 31, a second motor 32;

the moving unit 4, the vertical guide rail 41, the base plate 421, the linear guide rail 422, the support base 423, the linear bearing 424, the sliding table 425, the third motor 4261, the rotary table 4262, the connecting rod 4263, the connecting block 4264 and the pin 4265;

and (5) a lens.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.

Referring to the drawings, the processing device of the Brewster lens comprises: grinding wheel 1, clamping unit 2, drive unit 3 and moving unit 4. The grinding wheel 1 is in contact with the lens 5, and the grinding wheel 1 can be a diamond grinding wheel 1 and is used for processing the lens 5.

The lens 5 is disposed on the holding unit 2, and the holding unit 2 includes a base 21, a driving shaft 22, a holding bearing 23, and an adhesive rod 24. The driving shaft 22 is provided on the base 21, and the driving shaft 22 may be made of SUS304 or SUS 316. The adhesive rod 24 is made of stainless steel, is about 2mm smaller than the diameter (minor axis diameter of ellipse) of the lens 5 to be processed, and the front end of the adhesive rod is processed into a brewster angle of 22.6 degrees or a similar required angle, which is used for adhering the lens 5, and the adhesive rod 24 is a carrier for adhering and processing the lens 5. The bonding rod 24 is arranged on the driving shaft 22, one end, close to the bonding rod 24, of the driving shaft 22 is provided with a fixing groove 221, the diameter of the fixing groove 221 is 0.02-0.05 mm larger than that of the driving shaft 22, the bonding rod 24 is inserted into the fixing groove 221, the driving shaft 22 is used for clamping the bonding rod 24, and a clamping mechanism capable of rotating is formed.

The end of the driving shaft 22 provided with the fixing groove 221 is provided with a cross-shaped groove 222, the outer wall of the fixing groove 221 is provided with a tapered pipe thread, and the end of the driving shaft 22 provided with the fixing groove 221 is sleeved with a fastening nut 25. The cross-shaped groove 222 facilitates the clamping of the adhesive rod 24 in the fixing groove 221, and the fastening of the fastening nut 25 allows the end of the driving shaft 22 provided with the fixing groove 221 to tightly hold the adhesive rod 24, thereby achieving the fastening effect of the adhesive rod 24 and obtaining good coaxiality. The structure is simple and practical, the stick which is bonded by adopting the mode of tightly holding the clamp is automatically tightly held, the operation is convenient and fast, and the precision is high.

The clamping unit 2 further comprises a limiting block 26, a limiting nut 27 and an end cover 28, the limiting block 26 is arranged on the driving shaft 22, the limiting nut 27 is sleeved on the driving shaft 22, an inner ring of the clamping bearing 23 is located between the limiting block 26 and the limiting nut 27, and the inner ring of the clamping bearing 23 is fixed and fastened and limited through the limiting nut 27. The end cover 28 is connected to the base 21, the outer ring of the clamp bearing 23 is positioned between the end cover 28 and the base 21, and the outer ring of the clamp bearing 23 is fixed by the end cover 28.

The base 21 is provided with a pair of clamp bearings 23, and the drive shaft 22 is connected to the base 21 via the clamp bearings 23. The clamping bearings 23 are spaced by a sleeve and mounted on a shoulder, and a seal 29 is mounted near the end of the clamping portion clamp nut 25 for dust and water resistance.

The grinding wheel 1 and the lens 5 are connected with the driving unit 3, and the driving unit 3 drives the grinding wheel 1 and the lens 5 to rotate in the same direction. The driving unit 3 comprises a first motor 31 and a second motor 32, wherein the first motor 31 drives the lens 5 to rotate, and the second motor 32 drives the grinding wheel 1 to rotate.

The first motor 31 drives the driving shaft 22 to rotate, and the driving shaft 22 carries the adhesive rod 24 and the lens 5 to rotate. The first motor 31 is mounted on the moving unit 4 by screws, and a motor shaft of the first motor 31 is connected to the driving shaft 22 by a coupling and a key. Since the process is sometimes in a liquid environment with water or coolant, the driving shaft 22 is connected by a coupling and a key, and the motor drives the driving shaft 22 to realize the rotation of the driving shaft 22. The grinding wheel 1 is connected to a second motor 32, and is driven to rotate the grinding wheel 1.

The moving unit 4 changes the relative position of the lens 5 and the grinding wheel 1. The moving unit 4 includes a vertical moving assembly that changes the relative position of the mirror 5 and the grinding wheel 1 in the vertical direction, and a horizontal moving assembly that changes the relative position of the mirror 5 and the grinding wheel 1 in the horizontal direction.

The vertical moving assembly comprises a vertical guide rail 41, the grinding wheel 1 is connected to the vertical guide rail 41, vertical feeding movement of the grinding wheel 1 is carried out, and the grinding wheel 1 moves up and down on the vertical guide rail 41.

The horizontal movement assembly comprises a base plate 421, a linear guide rail 422, a supporting seat 423, a linear bearing 424, a sliding table 425 and a horizontal driving module. The substrate 421 can be made of stainless iron, and is easy to be mounted on a machine with a magnetic platform or a machine (such as a surface grinder, a cutting machine, etc.) carrying the grinding wheel 1.

The linear guide 422 is disposed on the substrate 421, and two ends of the linear guide 422 are fixedly connected to the substrate 421 through the support base 423. Linear bearing 424 is sleeved on linear guide rail 422, and sliding table 425 is arranged on linear bearing 424. At least two linear bearings 424 are arranged on the same linear guide rail 422, so that the stability of the sliding table 425 in the moving process is improved. A support base 423 is mounted on a substrate 421, the support base 423 is mounted on the substrate 421 by screws, a linear guide 422 is mounted on the support base 423, and the two linear guides 422 are parallel to each other. The linear bearings 424 are embedded in the bearing seats when the linear guide 422 is mounted in the linear bearings 424. The slide table 425 is mounted on the bearing housing, and the grip unit 2 is mounted on the slide table 425.

The sliding table 425 is connected to a horizontal driving module, and the horizontal driving module drives the sliding table 425 to move horizontally on the linear guide rail 422. The horizontal driving module comprises a third motor 4261, a rotary table 4262 and a connecting rod 4263, and the horizontal driving module and the sliding table 425 form a crank-slider mechanism. The third motor 4261 is mounted on the base plate 421 by a fixing screw, the dial 4262 is connected to the third motor 4261, and the dial 4262 and the third motor 4261 are connected by a key groove and a key on the dial 4262. The third motor 4261 drives the rotary table 4262 to rotate, the rotary table 4262 is connected with the sliding table 425 through a connecting rod 4263, one end of the connecting rod 4263 is connected to the rotary table 4262, and the other end of the connecting rod 4263 is connected to the sliding table 425.

The rotary table 4262 is provided with a connecting shaft which is screwed on the rotary table 4262, the connecting shaft is connected with a bearing, the inner ring of the bearing is arranged on the connecting shaft, the outer ring of the bearing is arranged on the connecting rod 4263, the bearing is axially fixed through a clamping ring, and a fixed retaining ring is arranged on the upper surface of the connecting rod 4263.

The horizontal driving module further comprises a connecting block 4264 and a pin 4265, the connecting rod 4263 is connected with the sliding table 425 through the connecting block 4264, the sliding table 425 laterally fixes the connecting block 4264, a pin 4265 hole is formed in the connecting block 4264, and the connecting block 4264 and the connecting rod 4263 are connected in a rotating mode through the pin 4265.

In the actual processing process, the lens 5 is adhered to the adhesive rod 24, the adhesive rod 24 is clamped on the driving shaft 22, and the power is transmitted to the driving shaft 22 through the first motor 31 through the coupler, so that the self-rotation of the adhesive rod 24 is realized. The first motor 31 is mounted on the slide table 425, the drive shaft 22 and the clamp bearing 23 and the like are fitted on the base 21, and the base 21 is mounted on the slide table 425. Sliding table 425 is mounted on the bearing housing, linear bearing 424 is mounted on linear guide 422 and embedded on the bearing housing, and sliding table 425 slides back and forth on linear guide 422. A connecting block 4264 is attached to the slide table 425, and a link 4263 is connected thereto by a pin 4265. The link 4263 is connected with the rotary table 4262 through a connecting shaft, the rotary table 4262 is connected with the third motor 4261 through a key groove and a key, and the third motor 4261 is fastened on the base plate 421.

The whole transmission is that the third motor 4261 drives the rotary table 4262 to rotate, and when the rotary table 4262 rotates, the rotation is converted into a horizontally reciprocating push-pull force for pushing the sliding table 425 through the connecting rod 4263 and the connecting block 4264, so that the whole sliding table 425 slides on the linear guide rail 422. The first motor 31 on the sliding table 425 drives the driving shaft 22 to rotate through the key and the coupler of the motor shaft, and the fastening nut 25 at the end of the driving shaft 22 clamps and fixes the adhesive rod 24 and the lens 5. This realizes that the first motor 31 drives the lens 5 to rotate, and the third motor 4261 makes the sliding table 425 reciprocate, which is equivalent to the lens 5 rotating and reciprocating simultaneously. The grinding wheel 1 rotates under the driving of the second motor 32, and the grinding wheel 1 integrally moves up and down on the vertical guide rail 41, so that the control of the machining diameter is realized. The lens 5 rotates and reciprocates, and the processing and grinding process is carried out under the rotation and vertical up-and-down feeding motion of the grinding wheel 1, so that an ideal processing effect is obtained.

This processingequipment of brewster lens cooperatees through the mechanism of clasping of slider-crank mechanism and rotation, combines diamond grinding wheel 1, realizes the processing of brewster part. The device has high precision, the dimensional consistency of the processed lens 5 is good, and the precision of the angle is high. The device consists of four independent units, and can also be carried on a plane grinder, a cylindrical grinder and a platform of a cutting machine by a clamping unit 2, a driving unit 3 and a moving unit 4 to realize the processing of the lens 5.

The traditional processing method is to process the shape before polishing, and then carry out fine grinding and polishing, thus the problem of edge breaking of sharp edges cannot be solved, and the processing is easy to 'disc-blasting'. The forming process after polishing is often carried out by using a large rounding grinding wheel 1, the surface consistency and cylindricity of the rounding process are poor, and the grinding wheel 1 with too wide width is difficult to obtain, or the grinding wheel 1 with the thickness exceeding 40mm is difficult to meet by a common machine. The utility model discloses a processingequipment provides after the polishing, utilizes slider-crank mechanism principle and holds rotation mechanism tightly certainly and carry out the rounding processing, and the angle error of processing is at +/-0.1, and diameter error is at +/-0.01mm, can satisfy the processing demand completely.

The above is only the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and all the same principles are included in the protection scope of the present invention.

Claims

1. A horizontal motion assembly for lens processing, comprising: the linear guide rail is arranged on the base plate, and two ends of the linear guide rail are fixedly connected with the base plate through the supporting seat; the linear bearing is sleeved on the linear guide rail, the sliding table is arranged on the linear bearing and connected to the horizontal driving module, and the horizontal driving module drives the sliding table to horizontally move on the linear guide rail; the horizontal driving module comprises a third motor, a rotary table and a connecting rod, the rotary table is connected to the third motor, the third motor drives the rotary table to rotate, the rotary table is connected to the sliding table through the connecting rod, one end of the connecting rod is connected to the rotary table, and the other end of the connecting rod is connected to the sliding table.

2. The horizontal motion assembly for lens processing of claim 1, wherein: the horizontal driving module further comprises a connecting block and a pin, the connecting block is arranged on the sliding table, a pin hole is formed in the connecting block, the pin is arranged on the connecting block, the connecting rod is inserted on the pin, and the connecting rod is rotatably connected with the pin.

3. The horizontal motion assembly for lens processing of claim 1, wherein: the substrate is made of stainless iron.

4. The horizontal motion assembly for lens processing of claim 1, wherein: the turntable is provided with a connecting shaft, the connecting shaft is screwed on the turntable, and a bearing is sleeved on the connecting shaft; the inner ring of the bearing is arranged on the connecting shaft, the outer ring of the bearing is arranged on the connecting rod, and the bearing is axially fixed through the clamping ring.

5. The horizontal motion assembly for lens processing of claim 1, wherein: the same linear guide rail is at least provided with two linear bearings.

6. The horizontal motion assembly for lens processing of claim 1, wherein: still include the key, be provided with the keyway on the carousel, the key sets up in the keyway, the carousel passes through with the third motor the key-type connection.

7. The horizontal motion assembly for lens processing of claim 1, wherein: the third motor is mounted on the substrate through a fixing screw.