CN210968427U

CN210968427U - Milling and grinding polishing clamp

Info

Publication number: CN210968427U
Application number: CN201921721596.9U
Authority: CN
Inventors: 校利凯
Original assignee: II VI Optics Suzhou Co Ltd
Current assignee: II VI Optics Suzhou Co Ltd
Priority date: 2019-10-15
Filing date: 2019-10-15
Publication date: 2020-07-10
Anticipated expiration: 2029-10-15

Abstract

The utility model discloses a mill and grind polishing anchor clamps, include: the device comprises a base, support ribs and a fixing ring; the base is provided with a vent hole and is connected with a vacuumizing device; the supporting ribs are arranged on the base and are annular; an annular channel is arranged between the supporting ribs and is communicated with the vent hole; the retainer plate sets up outside the brace rod, and the retainer plate includes fixed block and connecting block, and the fixed block setting is in the top of connecting block, and the top of fixed block is the plane, and the connecting block is connected with the brace rod. In this way, the utility model discloses can be fine solution thin part single seed add man-hour cracked with the problem of stress, especially to thickness/diameter < 5% part, carry out single seed man-hour, can solve its cracked problem. The clamp can be suitable for processing plane parts in different shapes, and has good universal matching property and wide application range.

Description

Milling and grinding polishing clamp

Technical Field

The utility model relates to a mill and grind polishing technical field, especially relate to a mill and grind polishing anchor clamps.

Background

At present, the processing procedures of thin parts on the market mostly adopt classical fine grinding and polishing or double-sided fine grinding and polishing, which is common practice. The thin parts are rarely milled and polished by single grains, because the parts are too thin and have low strength during single-grain machining of the single-grain thin parts, and the parts are easy to crack or have stress when being pressed. In addition, the double-sided fine grinding or polishing is adopted, the parts are too thin, the requirement on the strength of the separator is high, and the cylindrical surface is easy to damage and even explode the disc.

A part having a thickness to diameter ratio of less than 5% (thickness/diameter < 5%) is called a thin part, which is most likely to be broken during machining, and has a problem of poor surface shape even if it can be machined with difficulty, and also has a problem of poor flatness, and thus deformation of the thin part is likely to occur.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the main technical problem who solves provides a mill and grind polishing anchor clamps, solution that can be good thin part single seed add man-hour cracked with the problem of stress.

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

a milling and polishing fixture, comprising: the device comprises a base, support ribs and a fixing ring; the base is provided with a vent hole and is connected with a vacuumizing device; the supporting ribs are arranged on the base and are annular; an annular channel is arranged between the support ribs and is communicated with the vent hole; the fixing ring is arranged outside the supporting rib and comprises a fixing block and a connecting block, the fixing block is arranged above the connecting block, the top end of the fixing block is a plane, and the connecting block is connected with the supporting rib.

Preferably, the base comprises a positioning block, the positioning block is arranged below the base, and the vent hole is arranged in the positioning block.

Preferably, the positioning block is sleeved with a sealing ring.

Preferably, the width of the annular channel away from the central axis of the vent is smaller than the width of the annular channel close to the central axis of the vent.

Preferably, the end of the support rib connected with the base is provided with an external thread, and the support rib is in threaded connection with the fixing ring.

Preferably, the support rib is fixedly connected with the fixing ring through a bolt.

Preferably, the supporting rib provided with the annular channel on the inner side and the outer side is provided with a slot.

Preferably, the support rib is provided in a circular ring shape or a polygonal ring shape.

Preferably, the number of the support ribs is more than or equal to three.

Preferably, the height of the fixing ring is greater than that of the supporting ribs, and the height difference between the fixing ring and the supporting ribs is 1/3-1/2 of the thickness of the part.

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

the milling, grinding and polishing clamp is provided, the problems of fragmentation and stress of thin parts during single-grain processing are well solved, and the problem of fragmentation of the parts with the thickness/diameter of less than 5% during single-grain processing can be solved. The clamp can be suitable for processing plane parts in different shapes, and has good universal matching property and wide application range.

Drawings

Fig. 1 is a schematic structural view of the milling and polishing clamp of the present invention, in which the support rib is circular.

Fig. 2 is a schematic structural view of the milling and polishing clamp of the present invention, wherein the supporting rib is circular and the part is placed thereon.

Fig. 3 is a section explosion diagram of the milling and polishing clamp of the present invention, in which the support rib is circular ring.

Fig. 4 is a schematic structural view of the milling and polishing clamp of the present invention, in which the support rib is polygonal ring-shaped.

Fig. 5 is a schematic structural view of the milling and polishing clamp of the present invention, wherein the supporting rib is polygonal and annular, and the component is placed thereon.

Fig. 6 is an exploded view of a polygonal ring-shaped cross section of a support rib in a milling and polishing fixture of the present invention.

Description of reference numerals:

the device comprises a base 1, a positioning block 11, a vent hole 12, a support rib 2, an annular channel 21, a groove 22, a fixing ring 3, a fixing block 31, a connecting block 32, a sealing ring 4 and a part 5.

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, a milling and polishing clamp comprises: base 1, brace rod 2 and retainer plate 3. The base 1 is made of polyformaldehyde materials, the base 1 is a cylindrical rotary body, a through hole is drilled along the axis of the base 1 to form a vent hole 12, and the base 1 is connected with a vacuumizing device. The base 1 comprises a positioning block 11, the positioning block 11 is arranged below the base 1, and the vent hole 12 is arranged in the positioning block 11. The locating piece 11 is the lug that sets up in base 1 bottom, and the cover is equipped with sealing washer 4 on the locating piece 11, and base 1 is connected with evacuating device through locating piece 11.

The sealing ring 4 seals the vacuum bottom, improves the vacuum degree of the cavity and ensures that the part 5 fully contacts the supporting rib 2. The seal ring 4 is usually made of nitrile rubber, but for better sealing, a silicone rubber or fluorine rubber seal ring 4 may be used.

The support ribs 2 can be made of polyformaldehyde materials or nylon materials, the base 1 can be easily corrected on a machine through a milling head, the plane of the base 1 is perpendicular to the upper shaft and the lower shaft of the machine, the machined part 5 can also be guaranteed to have good flatness and the parallelism of the upper surface and the lower surface, and the problem that the part 5 is deformed due to the deformation of the clamp can be avoided.

The support ribs 2 are arranged on the base 1 and used for uniformly supporting the parts 5. The support rib 2 and the base 1 may be integrally formed or may be fixedly connected by a bolt. The support rib 2 is annular, the specific shape of the support rib 2 can be set according to the shape of the part 5, and the support rib 2 can be annular or polygonal annular in general.

Between the support ribs 2, annular channels 21 are provided, the shape of the annular channels 21 being changed by the shape of the support ribs 2. The annular channels 21 are communicated with the vent holes 12, and the communication between the annular channels 21 can be realized by arranging the slots 22 on the support ribs 2, and the slots 22 can be through holes. The support bar 2, which is provided with the annular channel 21 on both the inside and the outside, is provided with a slot 22, i.e. the support bar 2 located outermost is not provided with a slot 22. When the part 5 is placed on the support rib 2, a relatively closed space is formed between the support and the fixing ring 3, and the annular channel 21 is evacuated to a vacuum environment through the vent hole 12 by the evacuation device.

The support rib 2 and the fixing ring 3 can be fixedly connected, can be fixedly connected through a bolt, and can also be in threaded connection. When the brace rod 2 and the fixing ring 3 are in threaded connection, the outer thread is arranged at one end of the brace rod 2 connected with the base 1, and the inner thread is arranged at the lower end of the fixing ring 3. When the brace rod 2 is polygonal, the upper end of the fixing ring 3 can be set to be a special-shaped hole, and the brace rod 2 is clamped in the special-shaped hole to achieve the fixing effect.

The number of the support ribs 2 is more than or equal to three, and the more the number of the support ribs 2 is, the better the support effect on the surface of the part 5 is. The distance between the support ribs 2 may be uniform or non-uniform, and the distance between the support ribs 2 is the width of the annular channel 21. It is possible to set the width of the annular passage 21 away from the central axis of the ventilation holes 12 smaller than the width of the annular passage 21 near the central axis of the ventilation holes 12.

The retainer plate 3 sets up outside brace rod 2, and retainer plate 3 includes fixed block 31 and connecting block 32, and fixed block 31 sets up in the top of connecting block 32, and the top of fixed block 31 is the plane, and connecting block 32 is connected with brace rod 2. The height of the fixing ring 3 is larger than that of the support rib 2, and the height difference between the fixing ring 3 and the support rib 2 is 1/3-1/2 of the thickness of the part 5. The retainer ring 3 may be made of nylon or polyoxymethylene in order to protect the cylindrical surface of the part 5 from damage.

This milling and grinding polishing clamp, retainer plate 3 pass through threaded connection with brace rod 2, and retainer plate 3 closes 2 bottoms of brace rod soon. The base 1 together with the fixing ring 3 is mounted on the machine by screws. The processed part 5 is placed in the fixing ring 3, the size of the inner hole of the fixing ring 3 is slightly larger than that of the part 5 by 0.05mm, and the fixing ring 3 is used for circumferentially positioning the part 5. The part 5 is vertically placed on the support rib 2 to be positioned in the vertical direction.

A vent hole 12 (vacuum port) is arranged below the base 1, and a vacuumizing device is externally connected with the vent hole 12. The part 5 is placed on the support rib 2, and the part 5 is positioned by the fixing ring 3. At the moment, the vacuum environment in the milling and polishing clamp acts, and the part 5 is sucked on the support rib 2 and fixed. The sealing ring 4 can effectively keep the vacuum degree, so that the annular channel 21 forms a closed cavity, the supporting rib 2 at the outermost periphery does not need to be provided with the slot 22, otherwise, the vacuum is communicated with the atmosphere, and the vacuum effect is lost. The milling cutter or the polishing head can perform milling and polishing on the part 5 fixed on the milling and polishing clamp.

Evenly distributed strengthens brace muscle 2 on this milling and grinding polishing anchor clamps, has better support to slim part 5, adsorbs part 5 through annular cavity through vacuum negative pressure simultaneously, and in the course of working, the surface atress of part 5 is even, can not produce cracked and stress, reduces the processing cost of small batch volume, improves the commonality, and the efficiency of processing also promotes at double. In addition, the production efficiency is improved for the thin part 5 with larger removal amount, the problem that the part 5 with small thickness-diameter ratio (the thickness/diameter is less than 5%) cannot be milled is solved completely, and the problem that the thin part 5 is easy to crack during double-sided fine grinding and polishing is also solved.

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 milling and polishing clamp is characterized by comprising: the device comprises a base, support ribs and a fixing ring; the base is provided with a vent hole and is connected with a vacuumizing device; the supporting ribs are arranged on the base and are annular; an annular channel is arranged between the support ribs and is communicated with the vent hole; the fixing ring is arranged outside the supporting rib and comprises a fixing block and a connecting block, the fixing block is arranged above the connecting block, the top end of the fixing block is a plane, and the connecting block is connected with the supporting rib.

2. A milling and polishing jig according to claim 1, wherein: the base comprises a positioning block, the positioning block is arranged below the base, and the vent hole is formed in the positioning block.

3. A milling and polishing jig according to claim 2, wherein: and a sealing ring is sleeved on the positioning block.

4. A milling and polishing jig according to claim 1, wherein: the width of the annular channel far away from the central axis of the vent hole is smaller than that of the annular channel close to the central axis of the vent hole.

5. A milling and polishing jig according to claim 1, wherein: the supporting rib is provided with an external thread at one end connected with the base, and the supporting rib is in threaded connection with the fixing ring.

6. A milling and polishing jig according to claim 1, wherein: the support rib is fixedly connected with the fixing ring through a bolt.

7. A milling and polishing jig according to claim 1, wherein: the inner side and the outer side of the supporting rib are provided with annular channels, and the supporting rib is provided with a groove.

8. A milling and polishing jig according to claim 1, wherein: the support ribs are arranged in a circular ring shape or a polygonal ring shape.

9. A milling and polishing jig according to claim 1, wherein: the number of the support ribs is more than or equal to three.

10. A milling and polishing jig according to claim 1, wherein: the height of the fixing ring is larger than that of the supporting ribs, and the height difference between the fixing ring and the supporting ribs is 1/3-1/2 of the thickness of the part.