CN219582887U - Quick-change clamp structure - Google Patents

Abstract

The utility model discloses a quick-change clamp structure, which comprises a bracket and two clamping arms connected with the bracket, wherein the bracket comprises a machine case and a quick-release assembly, the quick-release assembly comprises a tool tray and a main tray, the tool tray is fixed on the machine case, the main tray is used for being connected with a robot, the main tray comprises a supporting seat and a convex annular plug, a plurality of fixing holes are formed in the plug along the circumferential direction, fixing balls are arranged in the fixing holes, an ejection seat which moves along the axial direction is arranged on the inner side of the plug, an air cylinder is connected to the ejection seat, a jack is arranged on the tool tray, a fixing groove is formed on the inner side of the jack, and an anti-rotation structure is arranged between the main tray and the tool tray.

Description

Quick-change clamp structure

Technical Field

The utility model belongs to the technical field of clamping structures, and particularly relates to a quick-change clamp structure.

Background

As previously filed by the applicant, chinese patent publication No. CN211517248U discloses a clamp, the clamp includes a bracket and two clamping arms connected to the bracket, at least one of the two clamping arms can move relative to the bracket, thereby adjusting the size of a clamping space between the two clamping arms, when a workpiece needs to be clamped, the size of the clamping space between the two clamping arms is firstly enlarged, and the workpiece can be accommodated, after the workpiece is placed in the clamping space, the two clamping arms are made to approach to reduce the size of the clamping space, so as to clamp the workpiece, the bracket includes a case, a flange connection structure, a connecting piece and a flange, both ends of the connecting piece are respectively connected with the case and the flange, and the flange is used for being connected with a robot.

In the above-mentioned patent, when the centre gripping to different products, need change different locating pieces, perhaps change different anchor clamps wholly, need the manual work to dismantle a plurality of screws when changing the locating piece and change the locating piece, still need the manual work to dismantle the ring flange between robot and the anchor clamps when changing the anchor clamps wholly, the dismouting is inconvenient.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides the clamp capable of realizing quick replacement, which basically does not need manual intervention in the replacement process and can realize the purpose of automatic quick replacement.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a quick change anchor clamps structure, includes the support and with two centre gripping arms of leg joint, the support includes quick-witted case and quick detach subassembly, quick detach subassembly includes tool tray and master disc, the tool tray is fixed in on the machine case, and the master disc is used for being connected with the robot, the master disc includes supporting seat and convex annular plug, is provided with a plurality of fixed orificess along the circumferencial direction on the plug, be provided with fixed ball in the fixed orificess, the inboard of plug is provided with along axial movement's ejecting seat, ejecting seat is connected with the cylinder, be provided with the jack on the tool tray, the inboard of jack is provided with the fixed slot, be provided with anti-rotation structure between master disc and the tool tray.

Further prevent changeing the structure and include a plurality of anti-rotating protrusions and prevent changeing the groove, prevent changeing protruding setting on the supporting seat, prevent changeing the groove setting on the tool tray.

The outer aperture of the fixing hole is smaller than the diameter of the fixing ball.

Further, a chamfer is arranged on the circumferential side surface of the ejection seat.

The support seat is further provided with a guide pin, the tool disc is provided with a guide hole, and the guide pin is conical.

Further, the support seat of the main disc is connected with a transition piece, and the main disc is connected with the robot through the transition piece.

Compared with the prior art, the utility model has the beneficial effects that: when the robot is detached from the clamp, the ejection seat is separated from the position of the fixed ball only by the cylinder, at the moment, the inner side of the fixed ball is not extruded, and the plug can be smoothly separated from the tool tray; when the robot is assembled with the clamp, the plug is inserted into the jack of the tool tray, the ejection seat is enabled to enter the position of the fixed ball through the air cylinder, the fixed ball is ejected into the fixed groove, the fixing of the robot and the clamp is completed, the disassembly and assembly are convenient and quick, and the on-site screwing operation is not needed.

Drawings

FIG. 1 is a perspective view of the structure of the quick change fixture of the present utility model;

FIG. 2 is a side view of the quick change clamp structure of the present utility model;

FIG. 3 is a perspective view of a tool tray according to the present utility model;

FIG. 4 is a cross-sectional view of a tool tray of the present utility model;

FIG. 5 is a perspective view of a main disk according to the present utility model;

fig. 6 is a cross-sectional view of a master disk in the present utility model.

Reference numerals: 1. a bracket; 11. a chassis; 12. a quick release assembly; 121. a tool tray; 1211. a jack; 12111. a fixing groove; 1212. a guide hole; 1213. an anti-rotation groove; 122. a main disk; 1221. a support base; 12211. a guide pin; 12212. anti-rotation protrusions; 1222. a plug; 12221. fixing the ball; 1223. an ejection seat; 1224. a cylinder; 123. a transition piece; 2. and a clamping arm.

Detailed Description

An embodiment of the quick-change clamp structure of the present utility model will be further described with reference to fig. 1 to 6.

In the description of the present utility model, it should be noted that, for the azimuth words such as the terms "center", "transverse (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the azimuth and positional relationships are based on the azimuth or positional relationships shown in the drawings, only for convenience of describing the present utility model and simplifying the description, but do not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and should not be construed as limiting the specific protection scope of the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first", "a second" feature may explicitly or implicitly include one or more of such feature, and in the description of the present utility model, the meaning of "a number", "a number" is two or more, unless otherwise specifically defined.

The utility model provides a quick change anchor clamps structure, includes support 1 and two centre gripping arms 2 that are connected with support 1, support 1 includes quick detach subassembly 12 and quick detach subassembly 11, quick detach subassembly 12 includes tool tray 121 and master disc 122, tool tray 121 is fixed in on the machine case 11, master disc 122 is used for being connected with the robot, master disc 122 includes supporting seat 1221 and the annular plug 1222 of convex, is provided with a plurality of fixed orificess along the circumferencial direction on the plug 1222, be provided with fixed ball 12221 in the fixed orificess, the inboard of plug 1222 is provided with the ejecting seat 1223 along axial motion, ejecting seat 1223 is connected with cylinder 1224, be provided with jack 1211 on the tool tray 121, the inboard of jack 1211 is provided with fixed slot 12111, be provided with anti-rotation structure between master disc 122 and the tool tray 121.

In this embodiment, the outer diameter of the fixing hole is smaller than the diameter of the fixing ball 12221, i.e. the fixing ball 12221 cannot drop out from the outer side of the fixing hole, and at the same time, the fixing ball is blocked by the ejector 1223 at the inner side of the fixing hole, so that the fixing ball cannot drop out of the fixing hole.

In the present embodiment, the outer diameter of the ejector 1223 corresponds to the inner diameter of the plug 1222, and the ejector is moved in the axial direction of the plug 1222, so that the fixing ball 12221 can be ejected when reaching the middle of the plug 1222, and the fixing ball 12221 protrudes outside the fixing hole.

The support base 1221 of the main disc 122 is preferably connected with a transition piece 123, and the main disc 122 is connected with the robot through the transition piece 123, that is, the transition piece 123 and the main disc 122 are fixed with the robot.

Before using, a plurality of clamps are usually prepared to be placed in a clamp bin, a robot can automatically move to the clamp bin according to a set path to replace the clamps, and when the clamps are replaced, the existing clamps are firstly taken down, and the specific process is as follows:

the robot transfers the existing fixture to the specified position of the fixture cabin, the air cylinder 1224 moves the ejection seat 1223, the ejection seat 1223 moves away from the position of the fixing hole, namely, the ejection seat is no longer against the inner side of the fixing ball 12221, the fixing ball 12221 can move at the moment, then the robot moves out axially along the tool tray 121, the fixing ball 12221 is retracted into the fixing hole along with the plug 1222 being pulled out from the jack 1211, namely, the fixing ball 12221 is separated from the fixing groove 12111, and the plug 1222 is smoothly separated from the jack 1211;

then the robot will replace and install a new clamp, the specific process is as follows:

the robot moves to a designated position (new fixture), the plug 1222 is first inserted into the insertion hole 1211 of the tool tray 121, then the air cylinder 1224 moves the ejection seat 1223 toward the middle of the plug 1222, and as the ejection seat 1223 moves, the ejection seat 1223 forces the fixed balls 12221 to move outwards, i.e. the fixed balls 12221 extend out of the fixed holes and enter the fixed slots 12111, thereby completing the locking of the plug 1222 and the tool tray 121, and thus completing the locking of the robot and the fixture.

The anti-rotation structure of the present embodiment preferably includes a plurality of anti-rotation protrusions 12212 and anti-rotation grooves 1213, the anti-rotation protrusions 12212 are disposed on the support base 1221, and the anti-rotation grooves 1213 are disposed on the tool tray 121.

The anti-rotation structure can prevent the clamp and the robot from rotating and ensure the relative fixation of the clamp and the robot.

The circumferential side of the ejector seat 1223, which is preferable in this embodiment, is provided with a chamfer.

As shown in fig. 6, the chamfer is provided to facilitate its outward movement against the stationary ball 12221.

The support base 1221 of the preferred embodiment is further provided with a guide pin 12211, and the tool tray 121 is provided with a guide hole 1212, and the guide pin 12211 has a tapered shape.

As shown in fig. 5, two guide pins 12211 are provided, which are disposed at two opposite corners of the support base 1221, and two guide holes 1212 are provided on the same tool tray 121, so that when the plug 1222 is inserted into the jack 1211, the plug 1222 and the jack 1211 can be guided by the cooperation of the guide pins 12211 and the guide holes 1212, thereby ensuring that the plug 1222 is smoothly inserted, and ensuring that the tool tray 121 is combined with the main tray 122 at a correct angle.

The above description is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims (6)

1. The utility model provides a quick change anchor clamps structure, includes support and two centre gripping arms of being connected with the support, its characterized in that: the support includes quick detach subassembly, quick detach subassembly includes tool tray and master disc, the tool tray is fixed in on the machine case, and the master disc is used for being connected with the robot, the master disc includes supporting seat and convex annular plug, is provided with a plurality of fixed orificess along the circumferencial direction on the plug, be provided with fixed ball in the fixed orificess, the inboard of plug is provided with along axial motion's ejecting seat, ejecting seat is connected with the cylinder, be provided with the jack on the tool tray, the inboard of jack is provided with the fixed slot, be provided with anti-rotation structure between master disc and the tool tray.

2. The quick-change clamp structure of claim 1, wherein: the anti-rotation structure comprises a plurality of anti-rotation protrusions and anti-rotation grooves, wherein the anti-rotation protrusions are arranged on the supporting seat, and the anti-rotation grooves are arranged on the tool tray.

3. The quick-change clamp structure of claim 2, wherein: the outer aperture of the fixing hole is smaller than the diameter of the fixing ball.

4. A quick change clamp structure according to claim 3, wherein: the circumferential side of ejecting seat is provided with the chamfer.

5. The quick change clamp structure of claim 4, wherein: the support seat is also provided with a guide pin, the tool tray is provided with a guide hole, and the guide pin is conical.

6. The quick change clamp structure of claim 5, wherein: the supporting seat of the main disc is connected with a transition piece, and the main disc is connected with the robot through the transition piece.