Gripper with a trident body section

Patent metadata

Field	Value
Publication number	US-10549431-B2
Application number	US-201816159630-A
Country	US
Kind code	B2
Filing date	Oct 13, 2018
Priority date	Jun 15, 2018
Publication date	Feb 4, 2020
Grant date	Feb 4, 2020

Abstract

A modular gripper has a body with a trident section and cylindrical section. A powering assembly is positioned in the cylindrical section. A pair of oppositing jaws is pivotally secured between a center wall and a pair of side wall, respectively, of the trident section. The piston rod moves a cam assembly on the center wall. The cam assembly passes through a body having a trident section and cylindrical section. The trident section comprises a trident structure that includes, at one end, a pair of side walls along with a center wall. The cylindrical section includes a fluid driven powering assembly. A pair of opposing jaw member are pivotally secured to the trident portion about separate pivot pins. A cam assembly is operatively connected to a piston rod of the fluid driven powering assembly. The cam assembly extends laterally outward with respect to a cylinder bore axis to receive a cam bush that engages with a through slot on each of the pair of opposing jaw members. The jaws rotate with respect to one another in response to fluid power in the cylindrical section. A pair of side plate members, each slide plate member has an elongated blind slot that receives an end of the cam assembly, the ends travel in the blind slot. Cam slots in the pair of opposing jaws, via a cam bushing.

First claim

What is claimed is:

1. A modular gripper assembly comprising:
a body having a trident section and cylindrical section, the trident section comprises a trident structure that includes, at one end, a pair of side walls along with a center wall, and the cylindrical section includes a fluid driven powering assembly;
a pair of opposing jaw member pivotally secured to the trident portion about separate pivot pins;
a cam assembly operatively connected to a piston rod of the fluid driven powering assembly, the cam assembly extends laterally outward with respect to a cylinder bore axis to receive a cam bush that engages with a through slot on each of the pair of opposing jaw members, the jaws rotate with respect to one another in response to fluid power in the cylindrical section; and
a pair of side plate members, each slide plate member having an elongated blind slot that receives an end of the cam assembly, the ends travel in the blind slot.

2. The modular gripper assembly according to claim 1 , wherein the pair of side walls is provided with a groove on both peripheral side to receive the pair of side plates.

3. The modular gripper assembly according to claim 1 , further comprising the pair of slide plates being reversible and interchangeable to either side groove of the wall.

4. The modular gripper assembly according to claim 1 , wherein the center wall is provided with an open cutout from the front end of the body, that is in-lined with the cylinder axis, to guide the piston rod clevis end.

5. The modular gripper assembly according to claim 1 , further comprising a through-slot in each of the pair of opposable jaw members, the jaw members being independently removable and replaceable by other jaw members.

6. The modular gripper assembly according to claim 1 , further comprising an adjustable sheet stopper having a pair of curvature through slots that enable the sheet stopper to be fixed at variable positions on the gripper body.

7. The modular gripper assembly according to claim 1 , further comprising with jaw opening angle adjustment assembly.

8. The modular gripper assembly according to claim 7 , wherein the center wall includes an open elongated slot to receive a striker.

9. The modular gripper assembly according to claim 7 , further comprising a jaw member including engraved marks with numerical values on an outer surface for easy angle adjustments.

10. The modular gripper assembly according to claim 7 , wherein the center wall includes a groove, with at least one threaded hole, on a top surface to receive a triangle shaped bracket.

11. The modular gripper assembly according to claim 7 , further comprising a dowel pin extending from the jaw member fixed to a striker that impacts a fixed threaded bumper wherein the adjustability of threaded bumper is configured to different jaw opening.

12. The modular gripper assembly according to claim 1 further comprising:
a sensor flag coupled to either end of the laterally extending cam assembly and travels with it; and
a sensor located adjacent to the sensor flag, the sensor mounted to a sensor bracket, the sensor bracket is adjustable relative to the sensor flag and mounted on either side of the gripper body.

13. The modular gripper assembly according to claim 12 , further comprising the sensor brackets being bi-directionally mounted on either side of the gripper, the sensor bracket is either fixed or movable from one side of the trident portion to the other.

14. The modular gripper assembly according to claim 12 , wherein the sensor bracket includes a guiding track to receive an integrated sensor cover, the sensor cover is adjustable relative to the sensor flag and is mounted to the sensor bracket.

15. A modular gripper assembly comprising:
a body having a trident section and a cylindrical section, the trident section comprises a trident structure including, at one end, a pair of side walls along with a center wall, and the cylindrical section includes a fluid driven powering assembly;
a pair of opposing jaw member pivotally secured to the trident portion about separate pivot pins;
a cam assembly operatively connected to a piston rod of the fluid driven powering assembly, the cam assembly extends laterally outward with respect to the cylinder bore axis to receive cam bushing that engage with through slots on each of the pair of opposable jaw members for rotation of the jaw members, with respect to one another, in response to fluid power in the cylindrical section;
a pair of side plate member, each side plate member having an elongated slot that receives an end of the laterally extending cam assembly; and
a sensor positioned at a tip of one of the opposing jaw members, the sensor senses presence of a part between the opposing jaw members.

16. The modular gripper assembly of claim 15 , further comprising a sensor bracket for receiving the sensor.

17. The modular gripper assembly of claim 16 , wherein the sensor bracket is fastened to the tip on the one of the opposing jaw members.

Assignees

• Dover India Pvt Ltd
• Capital Formation Inc

Inventors

• Bettaiah Shashikumar
• Shivanna Ravi Kumar

Classifications

• B21D43/10

  by grippers {(B21D43/055, B21D43/057, B21D43/145 take precedence)} · CPC title

• B21C51/00

  Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F · CPC title

• B25B5/087

  actuated by a hydraulic or pneumatic piston · CPC title

• B25J15/0226 Primary

  actuated by cams · CPC title

• B25J15/0475

  Exchangeable fingers · CPC title