CN211250059U

CN211250059U - Mechanical arm clamping jaw

Info

Publication number: CN211250059U
Application number: CN201921465826.XU
Authority: CN
Inventors: 周任义
Original assignee: Zhangjiagang Zhongli Electromechanical Manufacturing Co ltd
Current assignee: Zhangjiagang Zhongli Electromechanical Manufacturing Co ltd
Priority date: 2019-09-05
Filing date: 2019-09-05
Publication date: 2020-08-14
Anticipated expiration: 2029-09-05

Abstract

The utility model discloses an arm jack catch, the connecting plate comprises a connecting plate, jack catch slide and two jack catches that are used for pressing from both sides to get article, the second spout has been seted up to the bottom of connecting plate, the inner chamber of second spout rotates and is equipped with the lead screw, the one end fixed mounting of connecting plate has step motor, step motor's output shaft and the one end fixed connection of lead screw, both ends threaded connection has third slider and fourth slider respectively about the lead screw, third slider and fourth slider all with second spout sliding connection, the first spout that is the cruciform structure who link up about seting up on the jack catch slide, the inner chamber of first spout slides and is equipped with first slider and second slider, it is equipped with the second connecting rod to rotate between first slider and the fourth slider. The utility model discloses make two jack catchs press from both sides article more stable, also can be fit for not the article clamp of equidimension and get, application scope is wider, has saved a large amount of time, has also improved the clamp of arm jack catch to article and has got efficiency.

Description

Mechanical arm clamping jaw

Technical Field

The utility model relates to a jack catch specifically is a mechanical arm jack catch.

Background

The mechanical arm is a high-precision and high-speed dispensing robot hand. The method is corresponding to a small-batch production mode, and the production efficiency is improved. Besides the dispensing operation, it can correspond to uv irradiation, component placement, screw locking, circuit board cutting, etc.

At present, when the mechanical arm clamping jaw is used, most of the mechanical arm clamping jaws can only clamp small articles or can only clamp large articles, the application range is small, the mechanical arm clamping jaws need to be replaced, time is wasted, and the clamping efficiency of the articles is also reduced. Therefore, the mechanical arm claw is improved.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model relates to a mechanical arm clamping jaw, which comprises a connecting plate, a clamping jaw sliding plate and two clamping jaws for clamping articles, wherein the bottom end of the connecting plate is provided with a second chute, the inner cavity of the second chute is provided with a screw rod in a rotating way, one end of the connecting plate is fixedly provided with a stepping motor, the output shaft of the stepping motor is fixedly connected with one end of the screw rod, the left end and the right end of the screw rod are respectively connected with a third slide block and a fourth slide block in a threaded way, the third slide block and the fourth slide block are both connected with the second chute in a sliding way, the clamping jaw sliding plate is provided with a first chute which is communicated up and down and has a cross structure, the inner cavity of the first chute is provided with a first slide block and a second slide block in a sliding way, a second connecting rod is arranged between the first slide block and the fourth slide block in a rotating way, a first connecting rod is arranged between the second slide, the bottom ends of the first sliding block and the second sliding block are hinged to the two clamping jaws respectively.

As an optimal technical scheme of the utility model, the both ends of connecting plate and jack catch slide opposite side are all fixed and are equipped with the telescopic link, the telescopic link includes first dead lever and telescope tube.

As a preferred technical scheme of the utility model, the one end and the connecting plate fixed connection of first dead lever, the other end and the telescopic tube's one end of first dead lever are pegged graft, the telescopic tube's the other end and jack catch slide fixed connection.

As a preferred technical scheme of the utility model, the both sides of jack catch slide bottom are all fixed and are equipped with the fixed plate, and the opposite side of two fixed plates is all fixed and is equipped with the tight mechanism in top, two the opposite side of the tight mechanism in top respectively with two jack catch sliding connection.

As a preferred technical scheme of the utility model, the tight mechanism in top includes the second dead lever, pushes up tight sleeve pipe and spring, the one end and the jack catch sliding connection of second dead lever, the other end of second dead lever and the one end fixed connection of spring, and peg graft with the tight sheathed tube one end in top, the spring is located the tight sheathed tube inner chamber in top, the tight sheathed tube other end in top is articulated with the fixed plate.

As a preferred technical scheme of the utility model, the both sides on connecting plate top are all fixed and are equipped with the mount pad, two the mount pad is all through screw and external arm fixed connection.

As an optimal technical scheme of the utility model, the lead screw comprises two sections isometric and the opposite threaded rod of direction soon, and two sections threaded rods respectively with the inner chamber threaded connection of third slider and fourth slider.

As an optimal technical scheme of the utility model, the third spout has been seted up on the jack catch, the fifth slider that the one end fixedly connected with of second dead lever matches with the third spout.

The utility model has the advantages that: the mechanical arm claw is rotationally connected through the middle parts of the first connecting rod and the second connecting rod through a rotating shaft, one ends of the first connecting rod and the second connecting rod can be close to each other, while the other ends are close to each other, thereby enabling the two clamping jaws to approach each other and clamp the article, and through the mutual matching use of the jacking mechanism and the fixed plate, when large articles need to be clamped, the included angle between the first connecting rod and the second connecting rod can be rotated to be larger, thereby the included angle between the two claws is larger, a large article is positioned between the two claws, the distance between the two claws is gradually reduced, under the effect of spring elastic potential energy, make two jack catchs press from both sides more stable to article, also can be fit for not equidimension article clamp and get, application scope is wider, has saved a large amount of time, has also improved the efficiency of getting to article of arm jack catch.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of a claw of a mechanical arm of the present invention;

FIG. 2 is a sectional view of the connecting plate and the telescopic rod structure of the mechanical arm jaw of the present invention;

fig. 3 is the structure schematic diagram of the tightening mechanism of the mechanical arm claw of the utility model.

In the figure: 1. a connecting plate; 2. a claw sliding plate; 3. a telescopic rod; 301. a first fixing lever; 302. a telescopic sleeve; 4. a claw; 5. a fixing plate; 6. a jacking mechanism; 601. a second fixing bar; 602. tightly pushing the sleeve; 603. a spring; 7. a first connecting rod; 8. a second connecting rod; 9. a first chute; 10. a first slider; 11. a second slider; 12. a stepping motor; 13. a screw rod; 14. a third slider; 15. a fourth slider; 16. a second chute; 17. and (7) mounting a seat.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example (b): as shown in fig. 1, fig. 2 and fig. 3, the robot arm jaw of the present invention comprises a connecting plate 1, a jaw sliding plate 2 and two jaws 4 for clamping articles, wherein a second chute 16 is formed at the bottom end of the connecting plate 1, a screw 13 is rotatably disposed in an inner cavity of the second chute 16, a stepping motor 12 is fixedly mounted at one end of the connecting plate 1, a stepping motor driver is disposed on the connecting plate 1, the stepping motor 12 is electrically connected to the stepping motor driver, the stepping motor driver is electrically connected to an external stepping motor controller, the stepping motor controller is electrically connected to an external power supply, the stepping motor 12 is preferably an SC42 type driving motor, the stepping motor driver is preferably an XDL-542 type driver, the stepping motor controller is preferably an TPC8-8TD type controller, an output shaft of the stepping motor 12 is fixedly connected to one end of the screw 13, a third slider 14 and a fourth slider 15 are respectively screwed at the left end and the right, third slider 14 and fourth slider 15 all with 16 sliding connection of second spout, the first spout 9 that is the cruciform structure that link up from top to bottom is seted up on the jack catch slide 2, the inner chamber of first spout 9 slides and is equipped with first slider 10 and second slider 11, it is equipped with second connecting rod 8 to rotate between first slider 10 and the fourth slider 15, it is equipped with head rod 7 to rotate between second slider 11 and the third slider 14, the middle part of head rod 7 and second connecting rod 8 is rotated through the pivot and is connected, the bottom of first slider 10 and second slider 11 is articulated with two jack catchs 4 respectively.

Wherein, the both ends of connecting plate 1 and 2 opposite sides of jack catch slide are all fixed and are equipped with telescopic link 3, and telescopic link 3 includes first dead lever 301 and telescopic tube 302, and the setting of telescopic link 3 can improve the stability between connecting plate 1 and the jack catch slide 2 are connected to head rod 7 and second connecting rod 8.

Wherein, the one end and the connecting plate 1 fixed connection of first dead lever 301, the other end of first dead lever 301 is pegged graft with the one end of telescopic tube 302, the other end and the 2 fixed connection of jack catch slide of telescopic tube 302, and when head rod 7 and second connecting rod 8 rotated through the pivot, the one end of first dead lever 301 was at the inner chamber motion of telescopic tube 302, carried out concertina movement.

Wherein, the both sides of 2 bottoms of jack catch slides all fixedly are equipped with fixed plate 5, and the opposite side of two fixed plates 5 is all fixed to be equipped with and pushes up tight mechanism 6, and the opposite side of two tight mechanisms 6 in top respectively with two jack catch 4 sliding connection, the tight mechanism 6 in fixed mounting top of being convenient for of setting up of fixed plate 5, the setting of the tight mechanism 6 in top can be when pressing from both sides big article, make two jack catch 4 push up tightly to article.

Wherein, the tight mechanism 6 in top includes second dead lever 601, push up tight sleeve pipe 602 and spring 603, the one end and the jack catch 4 sliding connection of second dead lever 601, the other end of second dead lever 601 and the one end fixed connection of spring 603, and peg graft with the one end of pushing up tight sleeve pipe 602, spring 603 is located the inner chamber of pushing up tight sleeve pipe 602, the other end and the fixed plate 5 of pushing up tight sleeve pipe 602 are articulated, when getting big article, under the effect of spring 603 elastic potential energy, make second dead lever 601 push up tightly jack catch 4, make jack catch 4 rotate through the hinge, thereby make the jack catch 4 press from both sides more stably to big article.

Wherein, the both sides on 1 top of connecting plate are all fixed and are equipped with mount pad 17, and two mount pads 17 are all through screw and external arm fixed connection, and the setting of mount pad 17 is convenient for carry out fixed connection with connecting plate 1 and arm.

The screw rod 13 is composed of two sections of threaded rods with equal length and opposite rotation directions, the two sections of threaded rods are respectively in threaded connection with inner cavities of the third slider 14 and the fourth slider 15, and when the screw rod 13 rotates, the third slider 14 and the fourth slider 15 can be close to each other or far away from each other.

Wherein, the jaw 4 is provided with a third sliding groove, and one end of the second fixing rod 601 is fixedly connected with a fifth sliding block matched with the third sliding groove.

When the clamping device works and needs to clamp objects, the stepping motor driver is controlled by an external stepping motor to control the stepping motor 12 to start, the output shaft of the stepping motor 12 drives the screw rod 13 to rotate clockwise, the two sections of threaded rods are respectively in threaded engagement with the third slider 14 and the fourth slider 15, so that the third slider 14 and the fourth slider 15 are close to each other, the top ends of the first connecting rod 7 and the second connecting rod 8 are close to each other, the bottom ends of the first connecting rod 7 and the second connecting rod 8 are close to each other under the rotation action of the middle rotating shaft of the first connecting rod 7 and the second connecting rod 8, the first connecting rod 7 and the second connecting rod 8 respectively drive the second slider 11 and the first slider 10 to be close to each other, so that the two clamping jaws 4 are close to clamp the objects, if the objects are large, the output shaft of the stepping motor 12 drives the screw rod 13 to rotate anticlockwise, so that the top ends of the first connecting rod 7, thereby make two jack catchs 4 keep away from each other to make the inside spring 603 compression of tight mechanism 6 in top, make two jack catchs 4 press from both sides the both ends of article and get, under spring 603 elastic potential energy's effect, make two jack catchs 4 rotate through the hinge, thereby press from both sides tightly big article, make stability higher.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A mechanical arm claw comprises a connecting plate (1), a claw sliding plate (2) and two claws (4) used for clamping articles, and is characterized in that a second sliding groove (16) is formed in the bottom end of the connecting plate (1), a lead screw (13) is arranged in the inner cavity of the second sliding groove (16) in a rotating mode, a stepping motor (12) is fixedly mounted at one end of the connecting plate (1), an output shaft of the stepping motor (12) is fixedly connected with one end of the lead screw (13), a third sliding block (14) and a fourth sliding block (15) are respectively in threaded connection with the left end and the right end of the lead screw (13), the third sliding block (14) and the fourth sliding block (15) are both in sliding connection with the second sliding groove (16), a first sliding groove (9) which is of a cross structure and is vertically communicated is formed in the claw sliding plate (2), and a first sliding block (10) and a second sliding block (11) are arranged in the inner cavity of the first sliding groove, rotate between first slider (10) and fourth slider (15) and be equipped with second connecting rod (8), it is equipped with head rod (7) to rotate between second slider (11) and third slider (14), the middle part of head rod (7) and second connecting rod (8) is rotated through the pivot and is connected, the bottom of first slider (10) and second slider (11) respectively with two jack catch (4) are articulated.

2. The mechanical arm jaw according to claim 1, wherein the two ends of the connecting plate (1) and the jaw sliding plate (2) at opposite sides are fixedly provided with telescopic rods (3), and the telescopic rods (3) comprise first fixing rods (301) and telescopic sleeves (302).

3. The mechanical arm jaw according to claim 2, wherein one end of the first fixing rod (301) is fixedly connected with the connecting plate (1), the other end of the first fixing rod (301) is inserted into one end of the telescopic sleeve (302), and the other end of the telescopic sleeve (302) is fixedly connected with the jaw sliding plate (2).

4. The mechanical arm jaw of claim 1, wherein the jaw sliding plate (2) is fixedly provided with a fixing plate (5) at both sides of the bottom end thereof, the two fixing plates (5) are fixedly provided with tightening mechanisms (6) at opposite sides thereof, and the two tightening mechanisms (6) are slidably connected with the two jaws (4) at opposite sides thereof respectively.

5. The mechanical arm jaw of claim 4, wherein the tightening mechanism (6) comprises a second fixing rod (601), a tightening sleeve (602) and a spring (603), one end of the second fixing rod (601) is slidably connected with the jaw (4), the other end of the second fixing rod (601) is fixedly connected with one end of the spring (603) and is inserted into one end of the tightening sleeve (602), the spring (603) is located in an inner cavity of the tightening sleeve (602), and the other end of the tightening sleeve (602) is hinged to the fixing plate (5).

6. The mechanical arm jaw according to claim 1, characterized in that mounting seats (17) are fixedly arranged on both sides of the top end of the connecting plate (1), and both mounting seats (17) are fixedly connected with an external mechanical arm through screws.

7. The mechanical arm jaw according to claim 1, characterized in that the screw rod (13) is composed of two threaded rods with equal length and opposite rotation directions, and the two threaded rods are respectively in threaded connection with the inner cavities of the third slider (14) and the fourth slider (15).

8. The mechanical arm jaw according to claim 5, wherein a third sliding groove is formed in the jaw (4), and a fifth sliding block matched with the third sliding groove is fixedly connected to one end of the second fixing rod (601).