CN219925681U - Clamp for clamping diamond - Google Patents

Abstract

The utility model relates to a clamp for clamping diamond, which comprises a clamping component for clamping the diamond, and is characterized in that: the clamping assembly comprises a plurality of moving blocks distributed in an array manner, each moving block extends along the vertical direction, and in a state that the diamond is arranged on the upper surface of part of the moving blocks, the moving blocks at the corresponding positions of the diamond move downwards so that the upper surfaces formed by all the moving blocks are concave to form concave parts matched with the diamond; and a pressing member for pressing the moving block on the periphery of the recess in a state where the diamond is in the recess, so that the moving block on the periphery of the recess presses the outer circumferential wall of the diamond. The clamp can be suitable for clamping diamonds with different shapes and thicknesses, and has good clamping effect.

Description

Clamp for clamping diamond

Technical Field

The utility model relates to the technical field of diamond machining, in particular to a clamp for clamping diamond, which is arranged on equipment used in diamond machining.

Background

Monocrystalline diamond is widely used in the field of automobile parts and aerospace. The growth of artificial monocrystal diamond needs to polish the surface of monocrystal diamond, and most of the existing polishing modes are chemical mechanical polishing, namely: the diamond reciprocates on the surface of the grinding disc, so as to achieve the aim of removing and polishing surface materials.

At present, the most common mounting mode of diamond is to bond the diamond on the surface of a clamp by using glue and then grind the diamond, but the mode can generate a large amount of heat in the grinding process, and finally the heat is very easy to melt the glue to lead to the falling of a diamond sheet, and the falling of the diamond possibly causes injury to operators or diamond impact fracture.

In order to solve the technical problem, chinese utility model 'a clamp for polishing diamond and a diamond polisher' with patent number ZL202121001600.1 (grant publication number CN 216152091U) discloses a clamp for diamond, the clamp comprises a base and a screw cap screwed on the base, the slide block is controlled to slide inwards by forward rotation of the screw cap to control the side length of a regular polygon gap to be reduced so as to clamp the diamond, and the slide block is controlled to slide outwards by reverse rotation to control the side length of the regular polygon gap to be enlarged so as to release the clamp; the rotating cover is adjusted through rotation, the sliding blocks are driven to move in the base side grooves so as to control the regular polygon gap to be zoomed, and the elastic body in each sliding groove can provide clamping force to clamp the diamond through the sliding blocks. Although the clamping fixture realizes the clamping of the diamond by mechanical force clamping, the situation that the diamond piece falls off due to the fact that glue is melted caused by heat aggregation in the prior art can be effectively avoided, and the gap for clamping the diamond is a regular polygon and can be ensured to be more stable only when the shape of the diamond piece is just inscribed in the regular polygon gap due to the fact that the gaps between the sliding blocks of the clamping fixture enclose the diamond, so that the diamond shape applicable to the clamping fixture is limited and has limitations.

Accordingly, there is a need for further improvements to existing diamond holders.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a clamp for clamping diamond, which is applicable to clamping diamond in various shapes.

The technical scheme adopted for solving the technical problems is as follows: this a fixture for centre gripping diamond, including the clamping assembly that supplies the diamond centre gripping, its characterized in that: the clamping assembly comprises

The plurality of moving blocks are distributed in an array mode, each moving block extends along the vertical direction, and in the state that the diamond is arranged on the upper surface of part of the moving blocks, the moving blocks at the positions corresponding to the diamond move downwards so that the upper surfaces formed by all the moving blocks are concave inwards to form a concave part matched with the diamond; and

and the compressing piece is used for compressing the moving block at the periphery of the concave part in the state that the diamond is in the concave part, so that the moving block at the periphery of the concave part compresses the peripheral wall of the diamond.

In order to enable other moving blocks to be enclosed around the outer circumference of the diamond when the moving block of the diamond placement part moves down, the clamping assembly further includes:

the supporting mechanism is positioned below all the moving blocks and used for supporting the moving blocks so as to keep the upward trend of all the moving blocks all the time; and

and the limiting piece is used for enabling all the moving blocks to move upwards to the set position to be limited.

In order to realize the downward movement of part of the moving blocks, all the moving blocks are arranged into an array of N rows and M columns, N and M are positive integers, the height of each moving block is the same, grooves are formed between every two adjacent moving blocks and between every two adjacent moving blocks, flanges are arranged in the circumference of the center of each moving block, and the limiting piece can be inserted into the grooves to respectively prop against the flanges of each moving block. Thus, each moving block can move downwards independently, so that the clamp can adapt to diamond clamping with different thickness and different sizes.

Preferably, the limiting member includes:

the U-shaped limiting part comprises a first limiting strip, a second limiting strip and a third limiting strip, wherein the first limiting strip and the second limiting strip are oppositely arranged, the third limiting strip is connected with the first limiting strip and the second limiting strip, the first limiting strip and the second limiting strip extend along each row of moving blocks, the third limiting strip extends along each column of moving blocks, and the first limiting strip, the second limiting strip and the third limiting strip respectively correspond to and are propped against flanges on peripheral moving blocks of an array; and

and the N-1 fourth limiting strips extend along the direction parallel to the first limiting strips and are arranged between the first limiting strips and the second limiting strips at intervals, all the fourth limiting strips are connected with the third limiting strips, and each fourth limiting strip is respectively inserted between the grooves of each row of moving blocks and is propped against the flange on each row of moving blocks.

Preferably, the movable block fixing device further comprises a shell for installing all the movable blocks, wherein the shell comprises a U-shaped main shell and a side plate arranged at an opening of the main shell, a clamping groove for clamping the U-shaped limiting part is formed in the inner peripheral wall of the main shell, a jack for inserting a fastening piece is formed in the side plate, the fastening piece abuts against the outer side of the movable block, and the fastening piece is the pressing piece. The fastening piece can be a fastening jackscrew, a fastening nut and the like, so that the peripheral wall of the diamond can be pressed after the moving block moves by rotating the fastening piece.

In order to achieve the compaction of the part moving block, a plurality of fasteners are arranged at intervals along the side opposite to the third limit bar, and each fastener acts on the part moving block. By each fastener acting on part of the moving block, all fasteners are not required to act during adjustment, and only the fasteners which need to be adjusted are required to be adjusted.

The support mechanism may be of various kinds, and the first way of the support mechanism is preferably: the support mechanism comprises a first magnet fixedly arranged and a second magnet capable of being arranged between the first magnet and the lower surface of each moving block in a vertically movable mode, and the first magnet and the second magnet are arranged in homopolar opposite mode so that the first magnet and the second magnet repel each other, and therefore the fact that the second magnet applies force to the lower surface of each moving block is achieved.

The support mechanism is preferably in a second way: the supporting mechanism comprises elastic pieces acting on the lower surfaces of all the moving blocks.

Compared with the prior art, the utility model has the advantages that: the diamond is arranged on the upper surface of part of the moving blocks, after the moving blocks at the positions corresponding to the diamond are downwards moved by pressing the diamond under the action of external force, the upper surfaces of all the moving blocks are inwards recessed to form recessed parts matched with the diamond, and when the diamond is positioned in the recessed parts, the pressing parts are controlled so that the moving blocks at the periphery of the recessed parts can press the peripheral walls of the diamond. Therefore, the clamp can adapt to diamond clamping with different shapes and different thicknesses, and has good clamping effect.

Drawings

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

FIG. 2 is a schematic view of a portion of the structure of FIG. 1 (with the housing omitted);

FIG. 3 is an exploded view of FIG. 1;

FIG. 4 is a cross-sectional view of FIG. 1;

FIG. 5 is a schematic view of a portion of the structure of FIG. 2;

FIG. 6 is a schematic view of a part of a moving block according to a first embodiment of the present utility model;

FIG. 7 is an enlarged view at A in FIG. 5;

fig. 8 is a schematic structural view of a limiting member according to an embodiment of the utility model.

Detailed Description

The utility model is described in further detail below with reference to the embodiments of the drawings.

Embodiment one:

as shown in fig. 1 to 8, the jig for holding diamond in this embodiment includes a holding member for holding diamond 2. The clamping assembly comprises a shell 6, a plurality of moving blocks 1 distributed in an array, a compressing piece 5, a supporting mechanism 3 and a limiting piece 4, wherein all the moving blocks 1 are installed in the shell 6, each moving block 1 extends along the vertical direction, and in the state that the diamond 2 is arranged on the upper surface of part of the moving blocks 1, the moving blocks 1 at the corresponding positions of the diamond 2 move downwards (under the action of external force or the action of gravity of the diamond 2) so that the upper surfaces formed by all the moving blocks 1 are concave to form a concave part 11 matched with the diamond 2; the pressing member 5 is used to press the moving block 1 around the recess 11 in a state where the diamond 2 is in the recess 11, so that the moving block 1 around the recess 11 presses the outer circumferential wall of the diamond 2.

The supporting mechanism 3 is positioned below all the moving blocks 1 and is used for supporting the moving blocks 1 so as to keep all the moving blocks 1 always in an upward trend; the stopper 4 is used to move all the moving blocks 1 up to the set position to be stopped. As shown in fig. 2 and 3, all the moving blocks 1 are arranged in an array of N rows and M columns, N and M are positive integers, the height of each moving block 1 is the same, a groove 12 is formed between each row of two adjacent moving blocks 1 and each column of two adjacent moving blocks 1, a flange 13 is circumferentially arranged at the center of each moving block 1 (as shown in fig. 6, the moving blocks 1 comprise two parts with narrow upper part and wide lower part, namely the flange 13 is formed between the connecting parts of the two parts), and the limiting piece 4 can be inserted into the groove 12 to respectively abut against the flange 13 of each moving block 1.

As shown in fig. 2, 5, 7 and 8, in this embodiment, the limiting member 4 includes a U-shaped limiting portion and N-1 fourth limiting bars 44, where the U-shaped limiting portion includes two first limiting bars 41 and second limiting bars 42 that are disposed opposite to each other, and a third limiting bar 43 that connects the first limiting bars 41 and the second limiting bars 42, where the first limiting bars 41 and the second limiting bars 42 extend along each row of moving blocks 1, and the third limiting bars 43 extend along each column of moving blocks 1, and the first limiting bars 41, the second limiting bars 42 and the third limiting bars 43 respectively correspond to and abut against the flanges 13 on the peripheral moving blocks 1 of the array; the N-1 fourth limiting strips 44 extend along the direction parallel to the first limiting strip 41 and are arranged between the first limiting strip 41 and the second limiting strip 42 at intervals, all the fourth limiting strips 44 are connected with the third limiting strip 43, and each fourth limiting strip 44 is respectively inserted between the grooves 12 of each row of moving blocks 1 and abuts against the flange 13 on each row of moving blocks 1.

As shown in fig. 3, the housing 6 in this embodiment includes a U-shaped main housing 61 and a side plate 62 disposed at an opening of the main housing 61, a clamping groove 611 for clamping a U-shaped limiting portion is formed in an inner peripheral wall of the main housing 61, and a jack 621 for inserting a fastener is formed in the side plate 62, the fastener abuts against an outer side of the moving block 1, and the fastener is the pressing member 5. In addition, a plurality of fasteners are provided at intervals along the side opposite to the third limiting bar 43, each fastener acts on a part of the moving block 1, and 5 pressing members 5 are provided in fig. 2, and the pressing members 5 may be fastening jackscrews.

The support mechanism 3 in this embodiment includes a first magnet 31 fixedly provided and a second magnet 32 provided between the first magnet 31 and the lower surface of each moving block 1 so as to be movable up and down, the first magnet 31 and the second magnet 32 being disposed homopolar opposite to each other so that the first magnet 31 and the second magnet 32 repel each other, thereby effecting the biasing of the second magnet 32 against the lower surface of the moving block 1. As shown in fig. 4, the first magnet 31 is fixedly disposed at the bottom of the U-shaped main housing 61, a space for limiting the second magnet 32 to move is provided between the first magnet 31 and the lower surface of all the moving blocks 1, the first magnet 31 includes a first N pole 311 and a first S pole 312, the second magnet 32 includes a second S pole 321 and a second N pole 322, in this embodiment, the first S pole 312 of the first magnet 31 is disposed adjacent to the second S pole 321 of the second magnet 32, and of course, the first N pole 311 of the first magnet 31 may be disposed adjacent to the second N pole 322 of the second magnet 32, and since one second magnet 32 is disposed on the lower surface of each moving block 1, a part of the moving blocks 1 can move downward under the action of an external force against the magnetic force formed between the second magnet 32 and the first magnet 31, and after the external force disappears, the moving blocks 1 can move upward due to the magnetic force between the second magnet 32 and the first magnet 31.

The using process of the clamp in the embodiment is as follows:

A. in the case of no diamond 2 placement, the second magnet 32 keeps all the moving blocks 1 upward trend under the repulsive force of the first magnet 31, and all the moving blocks 1 are limited at the set position under the limiting action of the limiting piece 4;

B. placing the diamond 2 on the upper surface of the N-row M-column array, and placing the diamond in the center of the N-row M-column array as much as possible;

C. under the action of gravity of the diamond 2 (if the gravity of the diamond 2 is insufficient to enable part of the moving blocks 1 to move downwards, downward external force can be manually applied) the moving blocks 1 acted by the diamond 2 move downwards, so that concave parts 11 matched with the diamond 2 are concavely formed on the upper surfaces of the N rows and M columns of arrays, and at the moment, the peripheral walls of the diamond 2 are surrounded by other moving blocks 1 on the periphery of the concave parts 11;

D. the pressing member 5 is operated to act on the side edge of the moving block 1, thereby pushing the moving block 1, and finally pressing the moving block 1 at the periphery of the recess 11, so that the moving block 1 at the periphery of the recess 11 presses the outer peripheral wall of the diamond 2.

Embodiment two:

unlike the first embodiment, the supporting mechanism 3 in the present embodiment includes elastic members acting on the lower surfaces of all the moving blocks 1. The elastic member may be a plurality of springs capable of independently acting on part of the moving blocks 1, i.e., all the moving blocks 1 may always maintain the upward movement tendency by the elastic force of the springs.

Claims (8)

1. The utility model provides a fixture for centre gripping diamond, including the clamping assembly that supplies diamond (2) centre gripping, its characterized in that: the clamping assembly comprises

The diamond-free device comprises a plurality of moving blocks (1) distributed in an array manner, wherein each moving block (1) extends along the vertical direction, and when the diamond (2) is arranged on the upper surface of part of the moving blocks (1), the moving blocks (1) at the corresponding positions of the diamond (2) move downwards so that the upper surfaces formed by all the moving blocks (1) are concave to form concave parts (11) matched with the diamond (2); and

and the pressing piece (5) is used for pressing the moving block (1) at the periphery of the concave part (11) under the state that the diamond (2) is positioned at the concave part (11) so that the moving block (1) at the periphery of the concave part (11) presses the peripheral wall of the diamond (2).

2. A jig for holding diamond according to claim 1, wherein: the clamping assembly further comprises:

the supporting mechanism (3) is positioned below all the moving blocks (1) and is used for supporting the moving blocks (1) so as to keep all the moving blocks (1) to keep upward trend all the time; and

and the limiting piece (4) is used for enabling all the moving blocks (1) to move upwards to the set position to be limited.

3. A jig for holding diamond according to claim 2, wherein: all movable blocks (1) are arranged into an array of N rows and M columns, N and M are positive integers, the height of each movable block (1) is the same, grooves (12) are formed between every two adjacent movable blocks (1) and every two adjacent movable blocks (1), flanges (13) are circumferentially arranged in the center of each movable block (1), and limiting pieces (4) can be inserted into the grooves (12) to respectively abut against the flanges (13) of each movable block (1).

4. A jig for holding diamond according to claim 3, wherein: the limiting piece (4) comprises:

the U-shaped limiting part comprises a first limiting strip (41) and a second limiting strip (42) which are oppositely arranged, and a third limiting strip (43) which is connected with the first limiting strip (41) and the second limiting strip (42), wherein the first limiting strip (41) and the second limiting strip (42) extend along each row of moving blocks (1), the third limiting strip (43) extends along each column of moving blocks (1), and the first limiting strip (41), the second limiting strip (42) and the third limiting strip (43) respectively correspond to be propped against a flange (13) on the peripheral moving blocks (1) of the array; and

n-1 fourth limiting strips (44) extend along the direction parallel to the first limiting strips (41) and are arranged between the first limiting strips (41) and the second limiting strips (42) at intervals, all the fourth limiting strips (44) are connected with the third limiting strips (43), and each fourth limiting strip (44) is inserted between grooves (12) of each row of moving blocks (1) and abuts against flanges (13) on each row of moving blocks (1).

5. A jig for holding diamond according to claim 4, wherein: still including being used for supplying all movable blocks (1) to install casing (6) wherein, casing (6) are including main casing (61) of U-shaped and locating curb plate (62) of main casing (61) open department, offer draw-in groove (611) that supply U-shaped spacing portion joint on the interior perisporium of main casing (61), offer on curb plate (62) and supply fastener male jack (621), the fastener offsets with the outside of movable block (1), the fastener is foretell compact heap (5).

6. A jig for holding diamond according to claim 5, wherein: the fasteners are a plurality of and are arranged at intervals along the side opposite to the third limit strip (43), and each fastener acts on part of the moving block (1).

7. A jig for holding diamond according to any one of claims 2 to 6, wherein: the supporting mechanism (3) comprises a first magnet (31) fixedly arranged and a second magnet (32) capable of being arranged between the first magnet (31) and the lower surface of each moving block (1) in a vertically movable mode, the first magnet (31) and the second magnet (32) are arranged in a homopolar opposite mode so that the first magnet (31) and the second magnet (32) repel each other, and therefore the fact that the second magnet (32) exerts force on the lower surface of the moving block (1) is achieved.

8. A jig for holding diamond according to any one of claims 2 to 6, wherein: the supporting mechanism (3) comprises elastic pieces acting on the lower surfaces of all the moving blocks (1).