Clamping mechanism of manipulator

Abstract

The utility model provides a material clamping mechanism of manipulator, including frame, swing frame, blank clamping jaw, processing clamping jaw and lifting mechanism, swing frame is installed on frame, blank clamping jaw and processing clamping jaw are installed on swing frame, lifting mechanism is installed on frame and is connected with blank clamping jaw to drive the blank clamping jaw to open or close. The blank clamping jaw is driven by the lifting mechanism to be opened and closed, so that the blank clamping jaw can clamp the blank, the blank clamping jaw can convey the blank more stably, and the blank is prevented from falling off.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of cold header, specifically is a material clamping mechanism of manipulator. BACKGROUND

[0002] The cold header is transported to the machining station by the manipulator when producing the bolt nut. However, the existing manipulator only limits the blank when transporting the blank, and the blank has no clamping force. When the blank is transported from the cutting station to the subsequent station, the blank is easy to fall off. UTILITY MODEL CONTENTS

[0003] In view of the deficiency of prior art, the utility model provides a material clamping mechanism of manipulator, including frame, swing frame, blank clamping jaw, machining clamping jaw and lifting mechanism, swing frame is installed on the frame, blank clamping jaw and machining clamping jaw are installed on the swing frame, lifting mechanism is installed on the frame and is connected with blank clamping jaw, so as to drive blank clamping jaw to open or close.

[0004] Preferably, the lifting mechanism includes a cylinder and a first lever, the cylinder is installed on the frame, a rotary table is installed on the frame through a bearing, the first lever is installed on the rotary table, one end of the first lever is connected with the blank clamping jaw, and the other end is connected with the cylinder.

[0005] Preferably, the lifting mechanism further includes a drive shaft, a cam and a second lever, the drive shaft is installed on the frame, the cam is installed on the drive shaft, the second lever is installed on the frame, one end of the second lever is connected with the cam, and the other end is arranged above the position where the first lever is connected with the cylinder, during operation, the cylinder always lifts the first lever and the second lever upward, and the pressing force of the second lever is greater than the lifting force of the cylinder.

[0006] Preferably, one end of the second lever in contact with the cam is provided with a roller, and the roller is in contact with the cam.

[0007] Preferably, one end of the second lever in contact with the first lever is provided with a mounting hole, a pressing column is installed on the mounting hole, the pressing column includes a column body, a bolt and a nut, a threaded hole is formed in the top end of the column body, the nut is engaged with the bolt, the bottom of the bolt is engaged with the threaded hole, and the nut and the column body are clamped and fixed on the second lever.

[0008] Preferably, the second lever is in the shape of "Z".

[0009] Preferably, the bottom surface of the column body is in the shape of a sphere.

[0010] Preferably, the blank clamping jaw comprises a first clamping arm, a second clamping arm, a pull rod, a support, a sleeve and a limiting plate, the support is swingably installed on the frame, the sleeve is limitingly installed on the support through a bearing and is connected with the swing frame, the first clamping arm and the second clamping arm are hinged at the bottom of the sleeve, the pull rod is arranged in the sleeve, the bottom of the pull rod is connected with the first clamping arm and the second clamping arm, the top of the pull rod is connected with the first lever, and the limiting plate is fixed on the swing frame and abuts against the sleeve, so that the first clamping arm and the second clamping arm keep the relative position with the swing frame when the swing frame drives the blank clamping jaw to swing.

[0011] The blank clamping jaw can clamp the blank, so that the blank clamping jaw can more stably convey the blank and prevent the blank from falling off. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 It is a structure diagram of the front of the utility model;

[0013] Fig. 2 It is a structure diagram of the back of the utility model;

[0014] Fig. 3 It is a structure diagram of the blank clamping jaw and the lifting mechanism. DETAILED DESCRIPTION

[0015] The utility model will be further described in connection with the embodiments given in the drawings.

[0016] Please refer to Figs. 1-3 The utility model provides a kind of material clamping mechanism of manipulator, including frame 1, swing frame 2, blank clamping jaw 3, processing clamping jaw 4 and lifting mechanism, swing frame 2 is installed on frame 1, blank clamping jaw 3 and processing clamping jaw 4 are installed on swing frame 2, lifting mechanism is installed on frame 1 and is connected with blank clamping jaw 3, to drive blank clamping jaw 3 to open or close.

[0017] When working, blank clamping jaw 3 is opened and closed by lifting mechanism, so that blank clamping jaw 3 can clamp blank, so that blank clamping jaw 3 can more stably convey blank, prevent blank from falling off.

[0018] Further, lifting mechanism includes cylinder 53 and first lever 51, cylinder 53 is installed on frame 1, frame 1 is installed on bearing with turntable 54, first lever 51 is installed on turntable 54, one end of first lever 51 is connected with blank clamping jaw 3 and the other end is connected with cylinder 53.

[0019] When working, first lever 51 is driven by cylinder 53 to act, so as to drive blank clamping jaw 3 to open and close, simple structure, convenient to manufacture.

[0020] Further, the lifting mechanism further comprises a driving shaft 55, a cam 56 and a second lever 52, the driving shaft 55 is installed on the frame 1, the cam 56 is installed on the driving shaft 55, the second lever 52 is installed on the frame 1, one end of the second lever 52 is connected with the cam 56, and the other end is arranged above the position where the first lever 51 is connected with one end of the cylinder 53, in working, the cylinder 53 always lifts the first lever 51 and the second lever 52 upward, and the downward pressure of the second lever 52 is greater than the lifting force of the cylinder 53.

[0021] In working, the driving shaft 55 is connected with the main shaft of the cold header, the driving shaft 55 rotates to drive the cam 56 to rotate, the cam 56 drives the second lever 52 and the first lever 51 to rotate, the second lever 52 presses down the cylinder 53 and the first lever 51, and the first lever 51 drives the blank holder 3 to act; when the cam 56 rotates to the low position, the cylinder 53 lifts the second lever 52 and the first lever 51, and the first lever 51 drives the blank holder 3 to act. Through the above design, the action of the blank holder 3 can be synchronized with the main shaft and other devices, so that the action of the blank holder 3 can be automatically matched with other devices in working, without the need of electronic control, so that the working of the blank holder 3 is more stable and reliable.

[0022] Further, the end of the second lever 52 in contact with the cam 56 is provided with a roller 521, and the roller 521 abuts against the cam 56.

[0023] The roller 521 cooperates with the cam 56 to reduce the abrasion of the second lever 52 and the cam 56 in working, and prolong the service life of the equipment.

[0024] Further, the end of the second lever 52 in contact with the first lever 51 is provided with a mounting hole, a pressing column is mounted on the mounting hole, the pressing column comprises a column body 61, a bolt 62 and a nut 63, a threaded hole is formed in the top end of the column body 61, the nut 63 is engaged with the bolt 62, the bottom of the bolt 62 is engaged with the threaded hole, and the nut 63 and the column body 61 are clamped and fixed on the second lever 52.

[0025] Through the design of the pressing column, the contact area between the second lever 52 and the first lever 51 is reduced, and mutual interference in rotation can be avoided.

[0026] Further, the bottom surface of the column body 61 is spherical, so as to reduce the friction between the column body 61 and the first lever 51.

[0027] Further, the second lever 52 is in the shape of "Z", so that the second lever 52 can more conveniently contact the cam 56, the length of the second lever 52 is shortened, the overall layout is more compact, and too much space is avoided.

[0028] Further, the blank clamping jaw 3 comprises a first clamping arm 31, a second clamping arm 32, a pull rod 33, a bracket 34, a sleeve 35 and a limiting plate 36, the bracket 34 is swingably installed on the frame 1, the sleeve 35 is limitingly installed on the bracket 34 through a bearing and is connected with the swing frame 2, the first clamping arm 31 and the second clamping arm 32 are hinged at the bottom of the sleeve 35, the pull rod 33 is arranged in the sleeve 35, the bottom of the pull rod 33 is connected with the first clamping arm 31 and the second clamping arm 32, the top of the pull rod 33 is connected with the first lever 51, and the limiting plate 36 is fixed on the swing frame 2 and abuts against the sleeve 35, so that the first clamping arm 31 and the second clamping arm 32 keep the relative position with the swing frame 2 when the swing frame 2 drives the blank clamping jaw 3 to swing.

[0029] The preferred embodiments of the present application have been described above, but the protection scope of the present application is not limited to the above-mentioned embodiments. Any technical scheme falling within the concept of the present application shall fall within the protection scope of the present application. It should be noted that, for ordinary skilled in the art, some improvements and refinements can be made without departing from the principles of the present application, and these improvements and refinements shall also be considered as falling within the protection scope of the present application.

Claims

1. A material clamping mechanism of a robot, characterized by: The utility model provides a kind of blank holder clamping jaw and processing clamping jaw lifting mechanism, including rack (1), swing frame (2), blank holder clamping jaw (3), processing clamping jaw (4) and lifting mechanism, the swing frame (2) is installed on rack (1), the blank holder clamping jaw (3) and processing clamping jaw (4) are installed on swing frame (2), the lifting mechanism is installed on rack (1) and is connected with blank holder clamping jaw (3), to drive blank holder clamping jaw (3) to open or close.

2. The material gripping mechanism of the robot manipulator according to claim 1, wherein: The lifting mechanism includes cylinder (53) and first lever (51), the cylinder (53) is installed on rack (1), the rack (1) is installed with rotary table (54) by bearing, the first lever (51) is installed on rotary table (54), one end of the first lever (51) is connected with blank holder clamping jaw (3) and the other end is connected with cylinder (53).

3. The gripper mechanism of claim 2, wherein: The lifting mechanism further includes drive shaft (55), cam (56) and second lever (52), the drive shaft (55) is installed on rack (1), the cam (56) is installed on drive shaft (55), the second lever (52) is installed on rack (1), one end of the second lever (52) is connected with cam (56), and the other end is arranged above the position where the first lever (51) is connected with cylinder (53), when working, cylinder (53) always lifts first lever (51) and second lever (52) upwards, and the pressing force of the second lever (52) is greater than the lifting force of the cylinder (53).

4. The gripper mechanism of claim 3, wherein: One end of the second lever (52) is installed with a roller (521) in contact with the cam (56).

5. The gripper mechanism of claim 3, wherein: One end of the second lever (52) in contact with the first lever (51) is provided with a mounting hole, a pressing column is mounted on the mounting hole, the pressing column includes a column body (61), a bolt (62) and a nut (63), a threaded hole is formed at the top end of the column body (61), the nut (63) is engaged with the bolt (62), the bottom of the bolt (62) is engaged with the threaded hole, and the nut (63) and the column body (61) are clamped and fixed on the second lever (52).

6. The gripper mechanism of claim 3, wherein: The second lever (52) is in the shape of "Z".

7. The gripper mechanism of claim 5, wherein: The bottom surface of the column body (61) is in the shape of a sphere.

8. The gripper mechanism of claim 2, wherein: The blank holder clamping jaw (3) includes a first clamping arm (31), a second clamping arm (32), a pull rod (33), a bracket (34), a sleeve (35) and a limiting plate (36), the bracket (34) is swingably installed on the rack (1), the sleeve (35) is limitingly installed on the bracket (34) by a bearing and is connected with the swing frame (2), the first clamping arm (31) and the second clamping arm (32) are hingedly connected at the bottom of the sleeve (35), the pull rod (33) is arranged in the sleeve (35), the bottom of the pull rod (33) is connected with the first clamping arm (31) and the second clamping arm (32), the top of the pull rod (33) is connected with the first lever (51), and the limiting plate (36) is fixed on the swing frame (2) and abuts against the sleeve (35), so that the first clamping arm (31) and the second clamping arm (32) maintain the relative position with the swing frame (2) when the swing frame (2) drives the blank holder clamping jaw (3) to swing.

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