CN216505192U

CN216505192U - Rotary three-clamping jaw

Info

Publication number: CN216505192U
Application number: CN202123400325.3U
Authority: CN
Inventors: 曾庆辉; 宋小宝
Original assignee: Shenzhen Jiejiabao Intelligent Technology Co ltd
Current assignee: Shenzhen Jiejiabao Intelligent Technology Co ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-05-13
Anticipated expiration: 2031-12-30

Abstract

The utility model discloses a rotary three-clamping jaw, which comprises a cuboid-shaped outer shell, wherein a cylindrical rotary table is rotatably arranged at one end of the outer shell, a rotary driving assembly for driving the rotary table to rotate is arranged in the outer shell, more than three sliding grooves which are uniformly distributed by taking the central axis of the rotary table as the center are formed in the upper side of the rotary table, clamping jaws are arranged in each sliding groove in a sliding manner, a linear driving assembly for driving the three clamping jaws to be away from and opened is arranged in the outer shell, an elastic reset assembly for enabling the three clamping jaws to be close to each other is arranged in the rotary table, the rotary table and the clamping jaws are driven by the rotary driving assembly to be adjusted in driving angles, so that the rotation angle of a mechanical gripper with the three clamping jaws can be adjusted conveniently, and the elastic reset assembly is convenient for automatic retraction and reset after the three clamping jaws are unfolded.

Description

Rotary three-clamping jaw

Technical Field

The utility model relates to the technical field of machinery, in particular to a rotary three-clamping jaw.

Background

With the continuous improvement of the automation degree of industrial production in China, the demand of high-performance and high-cost performance electric clamping jaws is increased day by day, and although electric clamping jaws produced by many foreign manufacturers have strong functions, are simple and reliable and have advanced technology, in the prior art, the rotation angle of a mechanical gripper with three clamping jaws is inconvenient to adjust, and the automatic retraction and resetting of the three clamping jaws after the three clamping jaws are unfolded are inconvenient.

SUMMERY OF THE UTILITY MODEL

The object of the present invention is to solve the above mentioned problems and to provide a rotating three-jaw gripper, which overcomes the drawbacks of the prior art, as will be explained in more detail below.

In order to realize the purpose, the utility model provides the following technical scheme:

the utility model provides a rotary three-clamping jaw, which comprises a cuboid-shaped outer shell, wherein a cylindrical rotary table is rotatably arranged at one end of the outer shell, a rotary driving assembly for driving the rotary table to rotate is arranged in the outer shell, more than three sliding grooves which are uniformly distributed by taking the central axis of the rotary table as the center are formed in the upper side of the rotary table, clamping jaws are arranged in each sliding groove in a sliding mode, a linear driving assembly for driving the three clamping jaws to be far away from each other and opened is arranged in the outer shell, and an elastic reset assembly for enabling the three clamping jaws to be close to each other is arranged in the rotary table.

Preferably, the rotary driving assembly comprises a first gear and a second gear which are meshed with each other, the shaft end of the first gear and the shaft end of the rotary table are fixedly connected with each other, and the shaft end of the second gear is driven to rotate by a first motor fixedly arranged in the outer shell.

As preferred, linear drive subassembly includes the driving shaft pole, the mounting groove has been seted up to the inside of revolving stage, the one end of driving shaft pole is passed the revolving stage and is extended to in the mounting groove and the fixed triangle that is provided with the clamping jaw one-to-one pushes away the platform, the fixed second motor that is provided with in the shell, the output shaft of second motor is connected with the lead screw through gear reduction mechanism, threaded connection has a slide cartridge on the lead screw, and the outside cover of slide cartridge is equipped with the fixed sliding sleeve that sets up in the shell, slide cartridge and sliding sleeve sliding connection each other, the tip of slide cartridge and the tip of driving shaft pole rotate each other and be connected, the central axis department of first gear seted up with driving shaft pole rotation sliding fit's through-hole.

Preferably, the elastic reset assembly comprises a guide block fixedly arranged on the lower side of the clamping jaw, a guide rod is arranged between the guide block and the inner wall of the installation groove, one end of the guide rod is fixedly connected to the inner wall of the installation groove, the other end of the guide rod is slidably connected into a guide hole formed in the corresponding position of the guide block, and a spring is nested on the outer side of the guide rod between the guide block and the inner wall of the installation groove.

Preferably, the cross-sectional shape of the chute is T-shaped.

Preferably, one end of the outer shell, which is far away from the rotating platform, is opened, and an end cover is connected to the opening through a bolt.

Preferably, an inclined sliding surface is formed on one side of the clamping jaw close to the triangular pushing platform.

Preferably, one side of the clamping jaw, which is close to the triangular pushing platform, is provided with an inclined sliding groove, and the triangular pushing platform and the inclined sliding groove are matched and slidably connected with each other.

Has the advantages that:

1. the rotating table and the clamping jaws are driven by the rotating driving assembly to adjust the angle, so that the rotating angle of the mechanical gripper with the three clamping jaws can be conveniently adjusted, and the elastic resetting assembly is convenient for automatic retraction and resetting of the three clamping jaws after being unfolded;

2. the rotary driving assembly, the elastic reset assembly and the linear driving assembly are integrally arranged in the outer shell, so that the overall size can be greatly reduced, and the clamping and fixing of the workpiece in the environment with small space are realized.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a front view of the present invention;

FIG. 2 is a cross-sectional view of FIG. 1 of the present invention;

FIG. 3 is a perspective view of FIG. 1 of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 2 in accordance with the present invention;

figure 5 is a cross-sectional view of a jaw of the present invention.

The reference numerals are explained below: 1. an outer housing; 2. a rotating table; 2a, mounting grooves; 3. a clamping jaw; 3a, an inclined slide surface; 3b, an inclined chute; 4. an end cap; 5. a rotary drive assembly; 5a, a first gear; 5b, a second gear; 5c, a first motor; 6. a linear drive assembly; 601. a drive shaft; 602. A triangular push table; 603. a slide cylinder; 604. a sliding sleeve; 605. a second motor; 606. a lead screw; 607. a gear reduction mechanism; 7. an elastic reset component; 701. a guide block; 702. a guide hole; 703. a spring; 704. a guide bar; 8. a chute.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.

The first embodiment is as follows:

referring to fig. 1, 2, 3 and 4, the utility model provides a rotary three-clamping jaw, which comprises an outer shell 1 in a cuboid shape, wherein one end of the outer shell 1 is rotatably provided with a rotary table 2 in a cylindrical shape, one end of the outer shell 1, which is far away from the rotary table 2, is provided with an opening, and the opening is connected with an end cover 4 through a bolt. The inside of shell body 1 is provided with and is used for driving 2 pivoted rotary drive subassemblies 5 of revolving stage, and the spout 8 more than three that use its axis as center evenly distributed is seted up to the upside of revolving stage 2, and the cross sectional shape of spout 8 is the T style of calligraphy. All slide in every spout 8 and set up clamping jaw 3, be provided with in the shell body 1 and be used for driving three clamping jaw 3 and keep away from the sharp drive assembly 6 of opening each other, be provided with in the revolving stage 2 and be used for realizing that three clamping jaw 3 is close to the elastic reset subassembly 7 each other. In practical application, the linear driving assembly 6 drives the three clamping jaws 3 to be away from each other and opened, so that the inner hole of the workpiece is conveniently stretched, clamped and fixed, the workpiece is tightly fixed, and the elastic resetting assembly 7 is convenient for realizing the fact that the three clamping jaws 3 are close to each other and retracted.

The rotary driving assembly 5 comprises a first gear 5a and a second gear 5b which are engaged with each other, wherein the shaft end of the first gear 5a and the shaft end of the rotary table 2 are fixedly connected with each other, and the shaft end of the second gear 5b is driven to rotate by a first motor 5c fixedly arranged in the outer shell 1.

The linear driving assembly 6 comprises a driving shaft rod 601, a mounting groove 2a is formed in the rotating platform 2, one end of the driving shaft rod 601 penetrates through the rotating platform 2 to extend into the mounting groove 2a and is fixedly provided with a triangular push platform 602 in one-to-one correspondence with the clamping jaws 3, a second motor 605 is fixedly arranged in the outer shell 1, an output shaft of the second motor 605 is connected with a lead screw 606 through a gear speed reducing mechanism 607, the lead screw 606 is connected with a sliding cylinder 603 in a threaded manner, a sliding sleeve 604 fixedly arranged in the outer shell 1 is sleeved on the outer side of the sliding cylinder 603, the sliding cylinder 603 is in sliding connection with the sliding sleeve 604, the end of the sliding cylinder 603 is in rotating connection with the end of the driving shaft rod 601, and a through hole in rotating sliding fit with the driving shaft rod 601 is formed in the central axis of the first gear 5 a. The side of the clamping jaw 3 close to the triangular pushing platform 602 is provided with an inclined sliding surface 3 a.

Referring to the accompanying

drawings

2 and 4 in the specification, the elastic reset assembly 7 comprises a guide block 701 fixedly arranged on the lower side of the clamping jaw 3, a guide rod 704 is arranged between the guide block 701 and the inner wall of the installation groove 2a, one end of the guide rod 704 is fixedly connected to the inner wall of the installation groove 2a, the other end of the guide rod 704 is slidably connected to a guide hole 702 formed in the corresponding position of the guide block 701, and a spring 703 is nested outside the guide rod 704 between the guide block 701 and the inner wall of the installation groove 2 a.

Example two:

referring to fig. 1, 2, 3 and 5, the utility model provides a rotary three-clamping jaw, which comprises an outer shell 1 in a cuboid shape, wherein one end of the outer shell 1 is rotatably provided with a rotary table 2 in a cylindrical shape, one end of the outer shell 1, which is far away from the rotary table 2, is provided with an opening, and the opening is connected with an end cover 4 through a bolt. The inside of shell body 1 is provided with and is used for driving 2 pivoted rotary drive subassemblies 5 of revolving stage, and the spout 8 more than three that use its axis as center evenly distributed is seted up to the upside of revolving stage 2, and the cross sectional shape of spout 8 is the T style of calligraphy. All slide in every spout 8 and set up clamping jaw 3, be provided with in the shell body 1 and be used for driving three clamping jaw 3 and keep away from the sharp drive assembly 6 of opening each other, be provided with in the revolving stage 4 and be used for realizing that three clamping jaw 3 is close to the elastic reset subassembly 7 each other. In practical application, the linear driving assembly 6 drives the three clamping jaws 3 to be away from each other and opened, so that the inner hole of the workpiece is conveniently stretched, clamped and fixed, the workpiece is tightly fixed, and the elastic resetting assembly 7 is convenient for realizing the fact that the three clamping jaws 3 are close to each other and retracted.

The linear driving assembly 6 comprises a driving shaft rod 601, a mounting groove 2a is formed in the rotating platform 2, one end of the driving shaft rod 601 penetrates through the rotating platform 2 to extend into the mounting groove 2a and is fixedly provided with a triangular push platform 602 in one-to-one correspondence with the clamping jaws 3, a second motor 605 is fixedly arranged in the outer shell 1, an output shaft of the second motor 605 is connected with a lead screw 606 through a gear speed reducing mechanism 607, the lead screw 606 is connected with a sliding cylinder 603 in a threaded manner, a sliding sleeve 604 fixedly arranged in the outer shell 1 is sleeved on the outer side of the sliding cylinder 603, the sliding cylinder 603 is in sliding connection with the sliding sleeve 604, the end of the sliding cylinder 603 is in rotating connection with the end of the driving shaft rod 601, and a through hole in rotating sliding fit with the driving shaft rod 601 is formed in the central axis of the first gear 5 a. An inclined sliding groove (3b) is formed in one side, close to the triangular pushing platform (602), of the clamping jaw (3), and the triangular pushing platform (602) is matched with the inclined sliding groove (3b) in a sliding connection mode.

Referring to the accompanying

drawings

Adopt above-mentioned structure, during the use:

when the angle of the clamping jaw 3 is adjusted, an output shaft of a first motor 5c of the rotary driving component 5 rotates, the output shaft of the first motor 5c rotates to drive a connected second gear 5b to rotate, the second gear 5b rotates to drive a meshed first gear 5a to rotate, the first gear 5a rotates to drive a rotary table 2 fixedly connected with a shaft end to rotate, the rotary table 2 rotates to drive the clamping jaw 3 to rotate, so that the rotary adjustment of the clamping jaw 3 is realized, when the rotary adjustment of the clamping jaw 3 is performed, the rotary table 2 rotates to drive a driving shaft rod 601 and a triangular push table 602 of the linear driving component 6 to rotate, and at the moment, the driving shaft rod 601 rotates a certain angle relative to a sliding cylinder 603;

when the opening and closing of the clamping jaws 3 are adjusted, the output shaft of the second motor 605 of the linear driving assembly 6 rotates, the output shaft of the second motor 605 rotates to drive the screw 606 to rotate through the gear speed reducing mechanism 607, the screw 606 rotates to drive the sliding cylinder 603 connected with the threads to slide relative to the sliding sleeve 604, the sliding cylinder 603 slides along the axial direction of the screw 606 to drive the driving shaft rod 601 to slide, so as to drive the triangular push platform 602 to move along the axial direction of the driving shaft rod 601, the inclined sliding surface 3a is matched to realize the pushing of the clamping jaws 3, at the moment, the guide block 701 of the elastic resetting assembly 7 moves along the axial direction of the guide rod 704 close to the inner wall of the mounting groove 2a, at the moment, the spring 703 is in a compressed state, the sliding of the clamping jaws 3 in the sliding groove 8 is realized, the outward expansion of the three clamping jaws 3 is realized, the clamping and the fixing of the inner hole of the workpiece is realized, when the inward retraction of the three clamping jaws 3 is realized, the output shaft of the second motor 605 rotates in the opposite direction, at this time, the triangular push table 602 is separated from the clamping jaw 3, and the clamping jaw 3 is reset and retracted under the elastic force of the spring 703.

The rotating drive assembly 5 is used for adjusting the drive angle of the rotating platform 2 and the clamping jaws 3, so that the rotating angle of the mechanical gripper with the three clamping jaws can be conveniently adjusted, and the elastic reset assembly 7 is used for facilitating the automatic retraction and reset of the three clamping jaws after the three clamping jaws are unfolded; the rotary driving component 5, the elastic reset component 7 and the linear driving component 6 are integrally arranged in the outer shell 1, so that the overall size can be greatly reduced, and the workpiece can be clamped and fixed in a small environment in applicable space.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. A rotary three-jaw chuck, comprising: including shell body (1) that is the cuboid shape, the one end of shell body (1) is rotated and is provided with revolving stage (2) that are the cylinder shape, the inside of shell body (1) is provided with and is used for driving revolving stage (2) pivoted rotary driving subassembly (5), spout (8) more than three that use its axis as central evenly distributed are seted up to the upside of revolving stage (2), and the equal slip sets up clamping jaw (3) in every spout (8), be provided with in shell body (1) and be used for driving three clamping jaw (3) and keep away from sharp drive assembly (6) of opening each other, be provided with in revolving stage (2) and be used for realizing that three clamping jaw (3) are close to elasticity reset assembly (7) each other.

2. A rotating three-jaw chuck according to claim 1, wherein: the rotary driving assembly (5) comprises a first gear (5a) and a second gear (5b) which are meshed with each other, the shaft end of the first gear (5a) is fixedly connected with the shaft end of the rotary table (2), and the shaft end of the second gear (5b) is driven to rotate by a first motor (5c) fixedly arranged in the outer shell (1).

3. A rotating three-jaw chuck according to claim 2, wherein: the linear driving component (6) comprises a driving shaft lever (601), the rotating platform (2) is internally provided with a mounting groove (2a), one end of the driving shaft lever (601) passes through the rotating table (2) to extend into the mounting groove (2a) and is fixedly provided with triangular push platforms (602) which are in one-to-one correspondence with the clamping jaws (3), a second motor (605) is fixedly arranged in the outer shell (1), an output shaft of the second motor (605) is connected with a lead screw (606) through a gear speed reducing mechanism (607), the lead screw (606) is in threaded connection with a sliding cylinder (603), a sliding sleeve (604) fixedly arranged in the outer shell (1) is sleeved outside the sliding cylinder (603), the sliding cylinder (603) and the sliding sleeve (604) are connected with each other in a sliding way, the end part of the sliding cylinder (603) and the end part of the driving shaft lever (601) are connected with each other in a rotating way, the central axis of the first gear (5a) is provided with a through hole which is in rotating sliding fit with the driving shaft lever (601).

4. A rotating three-jaw chuck according to claim 2, wherein: elasticity subassembly (7) that resets is including fixed guide block (701) that sets up in clamping jaw (3) downside, is provided with guide bar (704) between guide block (701) and mounting groove (2a) inner wall, the one end fixed connection of guide bar (704) on mounting groove (2a) inner wall, the other end sliding connection of guide bar (704) is in guide hole (702) that the position was seted up corresponding to guide block (701), guide bar (704) outside between guide block (701) and mounting groove (2a) inner wall nestification has spring (703).

5. A rotating three-jaw chuck according to claim 1, wherein: the cross section of the sliding groove (8) is T-shaped.

6. A rotating three-jaw chuck according to claim 1, wherein: an opening is formed in one end, far away from the rotating table (2), of the outer shell (1), and an end cover (4) is connected to the opening through a bolt.

7. A rotating three-jaw chuck according to claim 3, wherein: an inclined sliding surface (3a) is formed on one side, close to the triangular pushing platform (602), of the clamping jaw (3).

8. A rotating three-jaw chuck according to claim 3, wherein: an inclined sliding groove (3b) is formed in one side, close to the triangular pushing platform (602), of the clamping jaw (3), and the triangular pushing platform (602) is in matched sliding connection with the inclined sliding groove (3 b).