CN220699229U - Clamp and grinding and polishing equipment - Google Patents

Abstract

The utility model relates to the technical field of grinding equipment, and provides a clamp and grinding and polishing equipment. Wherein, the through hole in the middle of the fixed disk is divided into a plurality of subspaces distributed around the axis by the baffle plate, and the peripheral side wall of the subspace at least comprises the inner peripheral wall of one through hole; the clamping assembly is arranged in the subspace, and the movement direction of the first clamping piece is perpendicular to the axis of the through hole; the fixed disk is provided with two, and two fixed disks distribute along its axis, and two fixed disks can be close to each other or keep away from along the axis, and the crystal can be fixed by the clamping component of two fixed disks and the terminal surface of treating of crystal exposes outside the terminal surface of fixed disk. Two supporting points are respectively provided for the crystals along the axial direction through the two fixed disks, so that the swing amplitude of the crystals can be reduced in the grinding process, the grinding action quality is improved, and the fixed disks can fix a plurality of crystals at the same time, so that grinding and polishing equipment can grind a plurality of crystals in the same batch, and the grinding consistency is ensured.

Description

Clamp and grinding and polishing equipment

Technical Field

The utility model relates to the technical field of grinding equipment, in particular to a clamp and grinding and polishing equipment.

Background

Processing of crystals is largely divided into cutting, grinding and polishing. The cutting is to process the crystal into a basic shape, usually a cuboid structure, and then grind the end face of the crystal to remove the tool marks and the surface damaged layers caused in the cutting process. Because of the high hardness of the crystals, high hardness abrasives (e.g., boron carbide or diamond powder) are often used to abrade the crystal surfaces during the abrading process. The polishing can improve the roughness and flatness of the crystal surface, so that the surface quality characteristic parameters meet the precision requirements in subsequent processing.

It can be seen that grinding and polishing as further processing of the crystal determines the processing quality of the crystal.

In the processing process of grinding and polishing, certain external force is required to be applied to the crystal by processing equipment, and the crystal is fixed by a corresponding clamp, so that shaking of the crystal in the processing process is reduced.

However, the existing clamp generally only fixes one end of the crystal, and the other end of the clamp is used as a processing end surface to be in contact with the grinding device or the polishing device, and the cut crystal is generally of a cuboid structure, so that the distance between the cut crystal and the fixed end and the stress end of the clamp is relatively longer, a cantilever-like structure is formed, and slight swing still occurs after stress, so that the quality of operation is difficult to guarantee.

Therefore, a fixture and a polishing apparatus are needed to solve the above-mentioned problems.

Disclosure of Invention

The utility model aims to provide a clamp and grinding and polishing equipment, which can reduce the swing amplitude of crystals in the grinding process and improve the grinding action quality.

To achieve the purpose, the utility model adopts the following technical scheme:

a clamp for clamping a rectangular crystal, comprising:

a fixed disk, the middle part of the fixed disk is provided with a through hole, a baffle is arranged in the through hole, the end part of the baffle is connected with the fixed disk, the through hole is divided into a plurality of subspaces distributed around the axis of the through hole, and the peripheral side wall of the subspace at least comprises an inner peripheral wall of the through hole;

the clamping assembly is arranged in the subspace and comprises a first clamping piece, the first clamping piece is movably connected with the fixed disc, and the moving direction of the first clamping piece is perpendicular to the axis of the through hole;

the two fixing plates are distributed along the axis of the fixing plates, the two fixing plates can be mutually close to or far away from each other along the axis, the crystal can be fixed by the clamping assemblies of the two fixing plates, and the end face to be processed of the crystal is exposed out of the end face of the fixing plate.

As a preferable aspect of the above-mentioned jig, the first clamping member includes a telescopic portion and an abutting portion, and the abutting portion is movably connected to the fixed disk through the telescopic portion.

As a preferable technical scheme of the fixture, the partition plate is provided with two partition plates which are placed in a cross shape, so that the through hole is divided into four subspaces.

As a preferable technical solution of the clamp, the clamping assembly further includes a second clamping member, and in the subspace, the second clamping member is movably connected with the fixed disc, and a movement direction of the second clamping member is perpendicular to an axis of the through hole.

As a preferable mode of the jig, the first clamping member moves back and forth in a first direction, and the second clamping member moves back and forth in a second direction, and the first direction is perpendicular to the second direction.

As a preferable mode of the jig, the two fixing plates include a first fixing plate provided with a guide post extending in an axial direction thereof and a second fixing plate slidably connected to the guide post and lockable therewith.

As a preferable embodiment of the jig, the first fixing plate is provided with a plurality of guide posts uniformly along a circumferential direction thereof.

As a preferable technical scheme of the clamp, the second fixing plate is provided with a locking structure, the locking structure comprises a U-shaped clamp and a threaded fastener, the U-shaped clamp is fixed with the second fixing plate and clamped on the periphery side of the guide post, and the threaded fastener is in threaded connection with the U-shaped clamp and used for adjusting the clamping degree of the U-shaped clamp and the guide post.

As a preferable embodiment of the clamp, a handle is fixed to one end of the threaded fastener.

The grinding and polishing equipment comprises a working platform, a correction ring and the clamp, wherein the correction ring is fixed on the working platform and sleeved outside the fixed disc.

The utility model has the beneficial effects that:

a fixture, i.e., an abrasive polishing apparatus, is provided for holding rectangular crystals, including a holding pan and a holding assembly. Wherein, the middle part of the fixed disk is provided with a through hole, a baffle plate is arranged in the through hole, the end part of the baffle plate is connected with the fixed disk, the through hole is divided into a plurality of subspaces distributed around the axis of the through hole, and the peripheral side wall of the subspace at least comprises an inner peripheral wall of one through hole; the clamping assembly is arranged in the subspace and comprises a first clamping piece, the first clamping piece is movably connected with the fixed disc, and the moving direction of the first clamping piece is perpendicular to the axis of the through hole; the fixed disk is provided with two, and two fixed disks distribute along its axis, and two fixed disks can be close to each other or keep away from along the axis, and the crystal can be fixed by the clamping component of two fixed disks and the terminal surface of treating of crystal exposes outside the terminal surface of fixed disk. Two supporting points are respectively provided for the crystals along the axial direction through the two fixed disks, so that the swing amplitude of the crystals can be reduced in the grinding process, the grinding action quality is improved, and the fixed disks can fix a plurality of crystals at the same time, so that grinding and polishing equipment can grind a plurality of crystals in the same batch, and the grinding consistency is ensured.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following description will briefly explain the drawings needed in the description of the embodiments of the present utility model, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the contents of the embodiments of the present utility model and these drawings without inventive effort for those skilled in the art.

FIG. 1 is a schematic view of a structure of a clamp according to an embodiment of the present utility model;

FIG. 2 is a top view of a clamp provided by an embodiment of the present utility model;

fig. 3 is a cross-sectional view of a clamp provided by an embodiment of the present utility model.

In the figure:

x, a first direction; y, second direction;

11. a partition plate; 111. a first reference surface; 112. a second reference surface; 12. a subspace; 13. a first fixed plate; 14. a second fixed disk; 15. a guide post; 16. a locking structure; 161. a U-shaped clamp; 162. a threaded fastener; 163. a handle;

20. a clamping assembly; 21. a first clamping member; 211. a telescopic part; 212. an abutting portion; 22. a second clamping member;

30. and (5) correcting the ring.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

As shown in fig. 1-3, the present application provides a clamp for clamping rectangular crystals, including a holding pan and clamping assembly 20. Wherein, the middle part of the fixed disk is provided with a through hole, a baffle plate 11 is arranged in the through hole, the end part of the baffle plate 11 is connected with the fixed disk, the through hole is divided into a plurality of subspaces 12 distributed around the axis of the through hole, and the peripheral side wall of the subspace 12 at least comprises an inner peripheral wall of one through hole; the clamping assembly 20 is arranged in the subspace 12 and comprises a first clamping piece 21, the first clamping piece 21 is movably connected with the fixed disc, and the moving direction of the first clamping piece 21 is perpendicular to the axis of the through hole; the fixed disk is provided with two, and two fixed disks are along its axial line distribution, and two fixed disks can be close to each other or keep away from along the axis, and the crystal can be fixed by the clamping component 20 of two fixed disks and the terminal surface of treating of crystal exposes outside the terminal surface of fixed disk.

Specifically, one or more partition plates 11 may be disposed in the through hole, and as the partition plates 11 are disposed more, the number of subspaces 12 separated by the through hole is more, but the volume of each subspace 12 is reduced accordingly, the crystals and the subspaces 12 are in one-to-one correspondence, and the number of the partition plates 11 specifically disposed is adjusted according to the number of crystals actually processed, the size of the section, and the operation requirement. In the subspace 12, the first clamping piece 21 is required to be actively abutted against the crystal, and the crystal is clamped together with the opposite baffle plate 11, and the feeding amount of the first clamping piece 21 is different according to the shape and the size of the crystal, so that the first clamping piece 21 is connected with the fixed disc, and the periphery of the fixed disc has no other components to interfere the adjustment of the first clamping piece 21 for conveniently adjusting the feeding amount of the first clamping piece 21.

Before use, the first clamping piece 21 in each subspace 12 is close to the side wall connected with the first clamping piece, and the two fixing plates are far away from each other along the axial direction of the fixing plates as far as possible, so that interference to the penetrating of crystals is avoided; when in use, the crystals are placed in the subspace 12 of one of the fixing plates, the crystals are in one-to-one correspondence with the subspaces 12, the length direction of the crystals is parallel to the axis of the through hole, and the crystals are abutted between the first clamping piece 21 and the partition plate 11 through the first clamping piece 21 to form a first fixing point; the other fixing disc is moved along the axial direction to move towards the side where the crystal is located, the subspace 12 of the fixing disc is aligned with the crystal, so that the crystal can penetrate through the subspace 12 of the fixing disc, the axial distance between the two fixing discs is adjusted, the end face to be ground of the crystal is exposed out of the end face of the fixing disc, the relative positions of the two fixing discs are locked, the crystal is fixed through the first clamping piece 21 of the other subspace 12, a second fixing point is formed, the connecting line of the two fixing points is parallel to the axial direction of the fixing disc, and the fixing of the crystal and the two fixing discs is completed.

Two supporting points are provided for the crystals along the axis through two fixed disks respectively for the crystal can reduce the swing range in the grinding process, improves grinding action quality, and the fixed disk can fix a plurality of crystals simultaneously, makes a plurality of crystals grind the operation with the batch, has ensured the uniformity of grinding.

Alternatively, the first clamping member 21 includes a telescoping portion 211 and an abutment portion 212, and the abutment portion 212 is movably connected to the fixed disk through the telescoping portion 211.

In this embodiment, the fixing plate is provided with a threaded hole, one end outer circumference side of the telescopic part 211 is provided with threads and threaded holes, the other end is rotationally connected with the abutting part 212, when the crystal is clamped, the telescopic part 211 is screwed, and then the feeding distance of the abutting part 212 in the subspace 12 is changed, because the abutting part 212 is rotationally connected with the telescopic part 211, the abutting part 212 does not rotate along with the telescopic part 211, only moves along the feeding direction of the telescopic part 211, and after the abutting part 212 is initially abutted with the crystal, the telescopic part 211 is continuously screwed until the crystal is clamped between the abutting part 212 and the partition 11.

In other embodiments, the telescopic portion 211 is a telescopic rod structure.

Further, the contact portion 212 has a plate-like structure, and is capable of being brought into contact with an end surface of a rectangular crystal to form a surface contact, and a buffer layer is provided on a side of the contact portion 212 facing away from the expansion portion 211 to form a soft contact with the crystal.

Further, the abutting portion 212 includes two movable plates disposed at an included angle, the included angle portion corresponds to an edge angle of the crystal, and the two movable plates are attached to two side walls of the crystal. Preferably, the two movable plates are hinged to the telescopic part 211, and an included angle between the two movable plates can be adaptively adjusted according to the structure of the crystal, so that the movable plates are kept to be attached to and abutted against the peripheral side wall of the crystal.

Alternatively, the partition 11 is provided with two blocks, placed in a cross shape, so that the through hole is divided into four subspaces 12.

Preferably, the radial section of the through hole is rectangular, two partition plates 11 are respectively connected with midpoints of two opposite sides, the through hole is equally divided into four subspaces 12, the radial section of each subspace 12 is rectangular, a rectangular crystal is placed in each subspace 12, the partition plates 11 in the subspaces 12 are used as aligned reference surfaces, and the first clamping piece 21 is used for abutting the crystal on at least one reference surface of the partition plates 11.

If the length of the crystal to be processed is smaller than the axial distance between the clamping assemblies 20 of the two fixing plates, the end face to be processed cannot necessarily be exposed from the end face of the fixing plates after the crystal is fixed by the two fixing plates. However, the first clamping member 21 having only one fixed disk cannot ensure the stability of the crystal during grinding, so in this embodiment, the clamping assembly 20 further includes a second clamping member 22, and the second clamping member 22 is movably connected to the fixed disk in the subspace 12, and its movement direction is perpendicular to the axis of the through hole. Thus, one fixing disc can provide two fixing points for the crystal along the axial direction so as to maintain the stability of the crystal during processing.

It should be noted that the second clamping member 22 has the same structure as the first clamping member 21, and the structural features thereof are not described herein.

Alternatively, the first clamping member 21 reciprocates in a first direction X, and the second clamping member 22 reciprocates in a second direction Y, the first direction X being perpendicular to the second direction Y. By this arrangement, the crystal can be provided with two-directional abutment forces, so that it can be more stable. In particular, when the crystal is a regular hexagonal prism, the radial cross section thereof is in a positive direction or a rectangular shape, and the abutting portion 212 of the first clamp 21 and the abutting portion 212 of the second clamp 22 are provided at right angles, corresponding to one of the right angles of the crystal, so that the stability of the crystal can be further maintained.

Further, the abutting portion 212 of the first holder 21 and the abutting portion 212 of the second holder 22 are parallel to the separator 11 facing thereto, respectively, and thus the first reference surface 111 and the second reference surface 112 of the first holder 21, the second holder 22, and the separator 11 enclose a rectangular space, and can be bonded to the four faces of the crystal. When holding the crystal, the first holding member 21 and the second holding member 22 push the crystal toward the reference surface opposite thereto, and finally concentrate the four crystals with the center of the through hole for processing.

Alternatively, the two fixing plates include a first fixing plate 13 and a second fixing plate 14, the first fixing plate 13 being provided with a guide post 15 extending in an axial direction thereof, and the second fixing plate 14 being slidably connected to the guide post 15 and lockable therewith. So set up, two fixed disks pass through guide post 15 and connect for the relative motion track that is close to or keeps away from of both is more accurate.

Optionally, the first fixing plate 13 is uniformly provided with a plurality of guide posts 15 along its circumference. By arranging the guide posts 15 in this way, when the second fixing plate 14 moves axially relative to the first fixing plate 13, the two can be kept relatively parallel, so that the crystal fixed by the first fixing plate 13 can smoothly pass through the subspace 12 of the second fixing plate 14.

Optionally, the second fixing plate 14 is provided with a locking structure 16, the locking structure 16 includes a U-shaped clamp 161 and a threaded fastener 162, the U-shaped clamp 161 is fixed with the second fixing plate 14 and clamped at the periphery of the guide post 15, and the threaded fastener 162 is in threaded connection with the U-shaped clamp 161, so as to adjust the clamping degree of the U-shaped clamp 161 and the guide post 15. Specifically, the middle part of the U-shaped clamp 161 is provided with a U-shaped groove, a part of the end surface at one side of the length direction of the U-shaped groove is fixed with the axial end surface of the second fixing plate 14, the guide post 15 is located in the U-shaped groove, the threaded fastener 162 sequentially penetrates through two clamping pieces of the U-shaped clamp 161 and is in threaded connection with the clamping pieces, the two clamping pieces are mutually close to each other along with screwing of the threaded fastener 162, and then the guide post 15 is held tightly so as to lock the relative position of the second fixing plate 14 and the guide post 15, the threaded fastener 162 is reversely rotated, the two clamping pieces are mutually far away, clamping of the guide post 15 is relieved, and the second fixing plate 14 can slide along the guide post 15.

Optionally, a handle 163 is secured to one end of the threaded fastener 162. So configured, the operator can drive the threaded fastener 162 through the handle 163 without the aid of other auxiliary tools, and the handle 163 increases the operator's force arm, reducing the force required.

The application also provides grinding and polishing equipment, which comprises a working platform, a correction ring 30 and the clamp, wherein the correction ring 30 is fixed on the working platform and sleeved outside the fixed disc. After the fixture finishes fixing the crystal, the crystal is placed in a correction ring 30, and the correction ring 30 is used for guaranteeing the perpendicularity of the fixture.

Furthermore, the foregoing description of the preferred embodiments and the principles of the utility model is provided herein. It will be understood by those skilled in the art that the present utility model is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, while the utility model has been described in connection with the above embodiments, the utility model is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the utility model, which is set forth in the following claims.

Claims (10)

1. The anchor clamps for centre gripping rectangle crystal, its characterized in that includes:

the fixing disc is provided with a through hole in the middle, a partition board (11) is arranged in the through hole, the end part of the partition board (11) is connected with the fixing disc, the through hole is divided into a plurality of subspaces (12) distributed around the axis of the through hole, and the peripheral side wall of the subspace (12) at least comprises one inner peripheral wall of the through hole;

the clamping assembly (20) is arranged in the subspace (12) and comprises a first clamping piece (21), the first clamping piece (21) is movably connected with the fixed disc, and the moving direction of the first clamping piece (21) is perpendicular to the axis of the through hole;

the fixing plates are arranged in two, the two fixing plates are distributed along the axis of the fixing plates, the two fixing plates can be mutually close to or far away from each other along the axis, and the crystal can be fixed by the clamping assemblies (20) of the two fixing plates, and the end face to be processed of the crystal is exposed out of the end face of the fixing plates.

2. The clamp according to claim 1, characterized in that the first clamp (21) comprises a telescopic portion (211) and an abutment portion (212), the abutment portion (212) being movably connected with the fixed disc by means of the telescopic portion (211).

3. A fixture according to claim 1, characterized in that said partition (11) is provided with two pieces placed in a cross-like manner so that said through hole is divided into four said subspaces (12).

4. A clamp according to claim 3, characterized in that the clamping assembly (20) further comprises a second clamping member (22), the second clamping member (22) being movably connected to the stationary disc in the subspace (12) with a movement direction perpendicular to the axis of the through-hole.

5. The clamp according to claim 4, characterized in that the first clamping member (21) is reciprocally movable in a first direction (X), the second clamping member (22) is reciprocally movable in a second direction (Y), the first direction (X) and the second direction (Y) being perpendicular.

6. Clamp according to claim 1, characterized in that the two fixing plates comprise a first fixing plate (13) and a second fixing plate (14), the first fixing plate (13) being provided with a guide post (15) extending in its axial direction, the second fixing plate (14) being slidably connected to the guide post (15) and lockable therewith.

7. A clamp according to claim 6, characterized in that the first fixed disk (13) is provided with a plurality of the guide posts (15) uniformly along its circumference.

8. The clamp according to claim 6, characterized in that the second fixing plate (14) is provided with a locking structure (16), the locking structure (16) comprises a U-shaped clamp (161) and a threaded fastener (162), the U-shaped clamp (161) is fixed with the second fixing plate (14) and clamped on the periphery of the guide post (15), and the threaded fastener (162) is in threaded connection with the U-shaped clamp (161) so as to adjust the clamping degree of the U-shaped clamp (161) and the guide post (15).

9. The clamp of claim 8, wherein a handle (163) is secured to one end of the threaded fastener (162).

10. Grinding and polishing equipment, characterized by comprising a working platform, a correction ring (30) and a clamp according to any one of claims 1-9, wherein the correction ring (30) is fixed on the working platform and sleeved outside the fixed disc.