CN213165016U

CN213165016U - Miniature clamp

Info

Publication number: CN213165016U
Application number: CN202021903681.XU
Authority: CN
Inventors: 周开旋; 杨树柏
Original assignee: SHANGHAI NEXTREND TECHNOLOGY CO LTD
Current assignee: Shanghai Yiqing Optical Technology Co ltd
Priority date: 2020-09-03
Filing date: 2020-09-03
Publication date: 2021-05-11
Anticipated expiration: 2030-09-03

Abstract

The utility model belongs to the technical field of the precision finishing, a miniature anchor clamps is disclosed. The micro-gripper includes a support plate, a plurality of separators, and a locking member. The clamping passageway that extends along its length direction is seted up to the backup pad, and the locking hole with the clamping passageway intercommunication is seted up to the one end of backup pad. One of the separator and the clamping channel is provided with a sliding groove, the other is provided with a boss clamped in the sliding groove, and the separator can be clamped in the sliding groove in a sliding mode. The two ends of the separating piece in the sliding direction are provided with limiting grooves, and any two adjacent separating pieces can be close to each other so that the limiting grooves clamp the workpiece together. The retaining member wears to locate the locking hole, and one end can support and press in the separator. Through boss and spout joint cooperation for a plurality of separators can slide ground joint in the clamping passageway, improved miniature anchor clamps's stability, realized high-efficient, the clamping in batches of work piece.

Description

Miniature clamp

Technical Field

The utility model relates to a precision finishing technical field especially relates to a miniature anchor clamps.

Background

In the precision machining industry, micro parts need to be clamped efficiently in large batch to perform subsequent machining and assembling on the micro parts.

The existing miniature clamp clamps cylindrical small grains in batches, slightly exposes the end faces of two sides of the small grains out of the clamp, and then carries out cleaning, coating, etching, film coating and other treatments on the end faces of the two sides of the small grains. The material of the granules can be metal, or non-metal glass, ceramic, plastic, etc. For the non-metallic pellets, it is necessary to separate the pellets by a separator to prevent them from flying, deforming, or scratching. Because granule and separator all lean on the manual work to press from both sides with tweezers and get and put, the amount of labour is great, is difficult to satisfy batch, high-efficient clamping operation.

Meanwhile, when the length of the pellet is 2mm or less, the thickness of the jig body and the thickness of the separator are thin. When the separator is clamped tightly, the small grains and the separator are easy to arch and collapse, at the moment, the miniature clamp can only clamp a small amount of small grains, and the requirements of large-scale and batch production cannot be met.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a miniature anchor clamps to it is inefficient to solve current miniature anchor clamps clamping, is difficult to the problem of the small work piece of high-efficient, the clamping in batches.

To achieve the purpose, the technical proposal adopted by the utility model is that:

a miniature fixture, comprising:

the clamping device comprises a supporting plate, a clamping device and a clamping device, wherein the supporting plate is provided with a clamping channel extending along the length direction of the supporting plate, and one end of the supporting plate is provided with a locking hole communicated with the clamping channel;

one of the separating pieces and the clamping channel is provided with a sliding groove, the other one of the separating pieces and the clamping channel is provided with a boss clamped in the sliding groove, and the separating pieces can be clamped in the sliding groove in a sliding manner; the two ends of the separating piece in the sliding direction are provided with limiting grooves, and any two adjacent separating pieces can approach each other, so that the limiting grooves of the two separating pieces can clamp the workpiece together;

the retaining member, the retaining member wears to locate the locking hole, and one end can support and press in the separator.

Preferably, one end of the clamping channel, which is close to the locking hole, is provided with a mounting opening, and the separator slides into the sliding groove through the mounting opening.

Preferably, the upper end and the lower end of the separator are both inwards recessed to form the sliding grooves, and the two opposite side walls of the clamping channel are correspondingly provided with the bosses.

Preferably, the sliding groove is a square groove, and the boss is a square boss matched with the square groove.

Preferably, the locking piece is a threaded rod, the locking hole is a threaded hole, and the threaded rod is in threaded connection with the threaded hole and can move along the axial direction of the threaded hole.

Preferably, any adjacent two of the partitions holding the workpiece have a gap therebetween.

Preferably, the limiting groove is an inwardly recessed arc groove.

Preferably, the circular arc groove has a center angle smaller than 180 °.

Preferably, the two ends of the separator in the sliding direction are provided with at least two limiting grooves, and the at least two limiting grooves are distributed at equal intervals along the height direction of the separator.

Preferably, the number of the clamping channels is multiple, and the clamping channels are arranged on the supporting plate in parallel at intervals.

The utility model has the advantages that: one of the separating piece and the clamping channel in the miniature clamp has a sliding groove, the other one is provided with a boss, and the separating piece and the clamping channel are clamped and matched through the boss and the sliding groove, so that the plurality of separating pieces can be clamped in the clamping channel in a sliding manner, the stability of the miniature clamp is improved, and the separating piece and a workpiece are prevented from arching or collapsing when the workpiece is clamped. When the miniature workpiece is clamped, the separating pieces are only required to be stirred, and the workpieces are respectively placed between the two corresponding adjacent separating pieces. The locking piece is abutted against the separating piece, so that the plurality of separating pieces in the clamping channel are close to each other to clamp the workpiece together. The miniature clamp realizes high-efficiency and batch clamping, and meets the requirement of large-scale production.

Drawings

FIG. 1 is an end view of a micro-gripper without a spacer according to an embodiment of the present invention;

fig. 2 is an end view of a part of a micro clamp clamping workpiece according to a first embodiment of the present invention;

fig. 3 is a partial cross-sectional view of a part of a micro clamp for clamping a workpiece according to a first embodiment of the present invention;

fig. 4 is an end view of a spacer at a viewing angle according to an embodiment of the present invention;

fig. 5 is an end view of a separator at another perspective provided by an embodiment of the present invention;

fig. 6 is an end view of another version of a spacer providing a viewing angle in accordance with an embodiment of the present invention;

fig. 7 is an end view of another version of a separator from another perspective provided by an embodiment of the present invention;

fig. 8 is a partial cross-sectional view of a part of a micro clamp for clamping a workpiece provided by the second embodiment of the present invention;

fig. 9 is a partial cross-sectional view of a part of a micro clamp for clamping a workpiece according to a second embodiment of the present invention.

The component names and designations in the drawings are as follows:

10. a workpiece; 1. a support plate; 11. a clamping channel; 111. a boss; 112. an installation port; 12. an end plate; 2. a separator; 21. a chute; 22. a limiting groove; 3. a locking member; 4. and (7) pressing a plate.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements related to the present invention are shown in the drawings.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

Example one

As shown in fig. 1 to 5, the present embodiment discloses a micro jig. The micro-gripper comprises a support plate 1, a plurality of separators 2 and a locking member 3. The supporting plate 1 is provided with a clamping channel 11 extending along the length direction of the supporting plate, and one end of the supporting plate 1 is provided with a locking hole (not shown) communicated with the clamping channel 11. One of the separating piece 2 and the clamping channel 11 is provided with a sliding groove 21, the other is provided with a boss 111 clamped in the sliding groove 21, and the separating piece 2 is clamped in the sliding groove 21 in a sliding manner. The partitioning members 2 have stopper grooves 22 at both ends in the sliding direction thereof, and any two adjacent partitioning members 2 can be brought close to each other so that the respective stopper grooves 22 collectively hold the workpiece 10. Retaining member 3 wears to locate the locking hole, and one end can support and press in separator 2.

The miniature anchor clamps of this embodiment, one of its separator 2 and clamping passageway 11 both has spout 21, and another is provided with boss 111, cooperates through

boss

111 and 21 joint of spout for a plurality of separators 2 can slide ground joint in clamping passageway 11, have improved miniature anchor clamps's stability, have avoided separator 2 when clamping work piece 10, and separator 2 takes place to arch up or collapses to fly with work piece 10. When the miniature workpieces 10 are clamped, the separators 2 are only required to be pulled, and the workpieces 10 are respectively placed between the two corresponding adjacent separators 2. The plurality of separators 2 in the clamping channel 11 are close to each other by the locking pieces 3 abutting against the separators 2, so that the limiting grooves 22 of two adjacent separators 2 jointly clamp the workpiece 10. The miniature clamp realizes efficient and batch clamping of the workpieces 10, and meets the requirement of large-scale production.

Preferably, the number of the clamping channels 11 is multiple, and the multiple clamping channels 11 are arranged on the support plate 1 in parallel and at intervals. The clamping channels 11 increase the number of the miniature clamp for clamping the workpiece 10 at one time, are beneficial to batch clamping of the miniature clamp, and improve the clamping efficiency. Moreover, the types or structures of the workpieces 10 clamped in each clamping channel 11 can be the same or different, so that the application range of the miniature clamp is widened.

In the present embodiment, the support plate 1 includes a body and two end plates 12 arranged in parallel. The body is clamped between two end plates 12, and a plurality of clamping channels 11 are distributed on the body in parallel and at equal intervals. At least one end plate 12 is provided with locking holes, and the number of the locking holes is the same as that of the clamping channels 11 and the locking holes are communicated in a one-to-one correspondence manner.

As shown in fig. 1 and 2, the clamping channel 11 has a mounting opening 112 at one end near the locking hole, and the partition 2 slides into the sliding groove 21 through the mounting opening 112.

In the present embodiment, a part of the boss 111 is removed from one end of the clamping channel 11 near the locking opening to form a mounting opening 112 for freely entering and exiting the partition 2. The mounting opening 112 is formed at one end close to the locking opening, so that the locking member 3 can extend into the mounting opening 112 to limit the sliding range of the separator 2 in the clamping channel 11 and prevent the separator 2 from sliding out of the mounting opening 112.

Preferably, the locking member 3 is a threaded rod, the locking hole is a threaded hole, and the threaded rod is in threaded connection with the threaded hole and can move along the axial direction of the threaded hole.

As shown in fig. 2, the screw rod enters the clamping channel 11 by rotating clockwise or counterclockwise to press the separators 2 to approach each other, thereby clamping the workpiece 10; or, the clamping channel 11 is withdrawn, so that the separating piece 2 is loosened and can slide in the clamping channel 11, and the workpiece 10 is convenient to place.

The partitioning member 2 that can be pressed against the locking member 3 is different in structure from the partitioning member 2 at other positions. The main differences are that: the end of the separator 2, which is pressed against the locking member 3, in the sliding direction of the separator has a limiting groove 22, and the other end of the separator has a plane side, so that the end of the locking member 3 is pressed against the plane side, and the stress of the separator 2 is more uniform.

Preferably, the upper and lower ends of the separator 2 are both recessed inwards to form sliding grooves 21, and two opposite side walls of the clamping channel 11 are correspondingly provided with bosses 111. The upper end and the lower end of the separating piece 2 are provided with sliding grooves 21 to form an I-shaped structure, and the bosses 111 are clamped in the corresponding sliding grooves 21, so that the separating piece 2 is prevented from being separated from the sliding grooves 21 to cause the phenomena of collapse and flying or arching.

As shown in fig. 3 and 4, the sliding groove 21 is a square groove, and the boss 111 is a square boss matched with the square groove. The processing of the partitioning member 2 and the supporting plate 1 is facilitated. The thickness of square boss is less than the thickness of backup pad 1, with thinner square boss joint in the spout 21 of separator 2 on the backup pad 1, has strengthened the intensity of backup pad 1, has improved the rigidity of miniature anchor clamps, is favorable to improving the clamping-force of miniature anchor clamps, centre gripping work piece 10 better.

Preferably, any adjacent two of the separators 2, between which the workpiece 10 is clamped, have a gap therebetween. The phenomenon that the two separators 2 are contacted and can not clamp the workpiece 10 is avoided.

As shown in fig. 5, the partitioning member 2 is recessed inwardly at both ends in the sliding direction thereof to form a stopper groove 22. In order to facilitate the clamping of the workpiece 10, the outer edges of the limiting grooves 22 are matched with the outer edges of the workpiece 10 to be clamped. The two opposing retainer grooves 22 can be brought closer together to form a clamping space that fits the outer edge of the workpiece 10. The contact surface of the separator 2 and the workpiece 10 is increased, which is beneficial to the uniform distribution of clamping force and avoids the stress concentration on the workpiece 10.

The workpiece 10 in this embodiment is preferably a cylindrical particle having a length of 1.2mm and a diameter of 1 mm. Preferably, the stopper groove 22 is an inwardly depressed circular arc groove. Of course, the limiting groove 22 may be a rectangular groove or other polygonal grooves, and only needs to be capable of clamping the workpiece 10.

Further preferably, the circular arc groove has a center angle of less than 180 °. Because the angle of the circle center of the arc groove is less than 180 degrees, when two adjacent separating parts 2 clamp the workpiece 10 together, a gap is formed between two opposite end faces.

As shown in fig. 6 and 7, the partitioning member 2 has at least two stopper grooves 22 at both ends in the sliding direction thereof, and the at least two stopper grooves 22 are equally spaced in the height direction of the partitioning member 2. A plurality of limiting grooves 22 are formed in the separating piece 2, so that a plurality of rows of workpieces 10 can be clamped in each clamping channel 11, and batch clamping of the workpieces 10 is facilitated. Moreover, the clamping of the multiple rows of workpieces 10 can be realized only by stirring the separator 2 once, and the clamping efficiency of the miniature clamp is greatly improved. The two ends of the separator 2 in the sliding direction are provided with two limiting grooves 22, so that the separator 2 is in an 'Y' -shaped structure, and the clamping quantity and the clamping stability of the miniature clamp are considered.

When the material of the spacer 2 and the support plate 1 is a metal such as stainless steel, aluminum, or copper, the spacer and the support plate may be processed by wire cutting. When the material of the separator 2 and the support plate 1 is nonmetal such as polytetrafluoroethylene, polyformaldehyde or polyetheretherketone, the separator and the support plate can be manufactured by injection molding, additive manufacturing and machining.

Example two

The present embodiment discloses a micro-clamp, which is substantially the same as the micro-clamp in the first embodiment, and the main difference is as follows:

as shown in fig. 8, the support plate 1 of the mini jig of the present embodiment is recessed inwardly at both sides of the clamping channel 11 to form sliding grooves 21, and bosses 111 are provided at both upper and lower ends of the spacer 2. Through boss 111 and the cooperation of spout 21 joint for a plurality of separators 2 can slide joint in clamping passageway 11. The boss 111 is clamped in the corresponding sliding groove 21, so that the separating part 2 is prevented from being separated from the sliding groove 21 to cause collapse or arch camber.

As shown in fig. 9, since the miniature fixture of this embodiment has a relatively small size and the thickness of the supporting plate 1 is relatively small, the machining difficulty and cost for forming the sliding groove 21 on the clamping channel 11 are relatively high. Therefore, the L-shaped grooves convenient to process can be formed in the two opposite ends of the clamping channel 11, and then the pressing plate 4 is attached to and fixed on the supporting plate 1, so that the pressing plate 4 and the L-shaped grooves form the sliding grooves 21 in a surrounding mode, the processing difficulty is reduced, and the cost is saved.

The above embodiments have been described only the basic principles and features of the present invention, and the present invention is not limited by the above embodiments, and is not departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A miniature fixture, comprising:

the clamping device comprises a supporting plate (1), wherein the supporting plate (1) is provided with a clamping channel (11) extending along the length direction of the supporting plate, and one end of the supporting plate (1) is provided with a locking hole communicated with the clamping channel (11);

the clamping device comprises a plurality of separating pieces (2), wherein one of the separating pieces (2) and the clamping channel (11) is provided with a sliding groove (21), the other one is provided with a boss (111) clamped in the sliding groove (21), and the separating pieces (2) can be clamped in the sliding groove (21) in a sliding manner; the two ends of the separating pieces (2) in the sliding direction are respectively provided with a limiting groove (22), and any two adjacent separating pieces (2) can approach each other so that the limiting grooves (22) clamp the workpiece (10) together;

retaining member (3), retaining member (3) wear to locate the locking hole, and one end can support and press in separator (2).

2. The miniature clamp according to claim 1, wherein an end of said clamping channel (11) adjacent to said locking hole has a mounting opening (112), and said spacer (2) slides into said slide slot (21) through said mounting opening (112).

3. The miniature clamp according to claim 1, wherein the upper end and the lower end of the separator (2) are both recessed inwards to form the sliding groove (21), and the bosses (111) are correspondingly arranged on two opposite side walls of the clamping channel (11).

4. The micro clamp according to claim 3, wherein the sliding groove (21) is a square groove, and the boss (111) is a square boss matched with the square groove.

5. The miniature clamp according to claim 1, wherein said locking member (3) is a threaded rod, said locking hole is a threaded hole, and said threaded rod is threadedly coupled to said threaded hole and capable of moving in an axial direction of said threaded hole.

6. The micro-gripper according to claim 1, characterized in that any two adjacent spacers (2) between which the work piece (10) is gripped have a gap therebetween.

7. The miniature fixture as set forth in claim 6, wherein said retaining groove (22) is an inwardly recessed circular arc groove.

8. The micro clamp of claim 7, wherein the circular arc groove has a center angle of less than 180 °.

9. The micro chuck according to claim 1, wherein the spacer (2) has at least two stopper grooves (22) at both ends in the sliding direction thereof, and the at least two stopper grooves (22) are equally spaced in the height direction of the spacer (2).

10. The miniature clamp according to claim 1, wherein said clamping channels (11) are provided in plurality, and a plurality of said clamping channels (11) are arranged on said supporting plate (1) in parallel and at intervals.