CN108974935B

CN108974935B - Clamp feeding mechanism

Info

Publication number: CN108974935B
Application number: CN201810954875.3A
Authority: CN
Inventors: 李云稀; 李新; 焦国庆; 孙建磊; 王存义; 吴国龙
Original assignee: Shandong Echt Nc Machine Co ltd
Current assignee: Shandong Echt Nc Machine Co ltd
Priority date: 2018-08-21
Filing date: 2018-08-21
Publication date: 2024-06-11
Anticipated expiration: 2038-08-21
Also published as: CN108974935A

Abstract

The invention discloses a clamp feeding mechanism which can convert the linear motion of an air cylinder into the circular motion of a clamp, realize the parallelism between the clamping plane of the clamp and the lower bottom surface of a bracket in the motion process, realize the surface contact of the clamp when clamping a plate, avoid damaging the surface of the plate, ensure the service life of the clamp feeding mechanism, and have the advantages of simple structure and reliable action, and realize the automatic engagement and release of the clamp by controlling the action of the air cylinder through an electromagnetic valve, thereby saving time and labor.

Description

Clamp feeding mechanism

Technical Field

The invention relates to the technical field of automatic feeding, in particular to a clamp feeding mechanism.

Background

The common feeding mechanism who uses at present is manual clamp, needs manual tightening when the centre gripping panel, wastes time and energy, and panel still fixes on the clamp when processing moreover, and the vibration that panel course of working produced causes panel to drop easily and the damage of clamp, influences work efficiency. The existing clamp automatic feeding system is complex in structure and time-consuming to manufacture. When clamping the plate, the clamping plane of the clamp cannot be parallel to the plate surface in the action process, and the processed plate is easy to damage.

Disclosure of Invention

The invention aims to provide a clamp feeding mechanism which can convert the linear motion of an air cylinder into the circular motion of a clamp, realizes the surface contact of the clamp when clamping a plate, does not damage the surface of the plate, ensures the service life of the clamp feeding mechanism, has a simple structure and reliable action, and realizes the automatic engagement and release of the clamp by controlling the action of the air cylinder through an electromagnetic valve, thereby saving time and labor.

In order to achieve the above object, the present invention provides the following technical solutions:

The clamp feeding mechanism comprises a clamp, a bracket, a transmission system, an air cylinder and an electromagnetic valve, wherein the air cylinder and the electromagnetic valve are fixed on the bracket, the electromagnetic valve controls the air cylinder to reciprocate in a linear motion, the circular motion of the clamp in a limited range is realized through the transmission of the transmission system, and the clamping and loosening actions of the clamp are completed; the clamping plane of the clamp is parallel to the lower bottom surface of the bracket in the moving process, so that the surface contact of the clamp when clamping the plate is realized, the surface of the plate is not damaged, and the service life of the clamp feeding mechanism is ensured.

Preferably, the transmission system comprises a connecting plate, a first connecting rod, an angle bracket, a second connecting rod, a first shaft, a second shaft, a third shaft, a fourth shaft, a fifth shaft and a sixth shaft; the clamp is rotationally connected with the second connecting rod through the fourth shaft; the clamp is rotationally connected with the angle bracket through a fifth shaft; the corner frame is rotationally connected with the bracket through a second shaft; the second connecting rod is rotationally connected with the bracket through a first shaft; the corner frame is rotationally connected with the connecting rod through a shaft six; the connecting rod I is rotationally connected with the connecting plate through a shaft III; the connecting plate is fixedly connected to the output end of the air cylinder. The whole transmission system is arranged, so that the conversion from linear motion to circular motion is completed, and the clamping and loosening actions of the clamp are realized. The electromagnetic valve is arranged, so that the automatic control of the whole action process of the clamp is realized.

Preferably, the distance between the axis five and the axis two is equal to the distance between the axis four and the axis one, so that the parallelism between the clamping plane of the clamp and the lower bottom surface of the bracket is ensured in the moving process.

Preferably, the support is provided with a groove for connecting the plate to move, so that the linear movement state of the connecting plate is further ensured.

Preferably, the shape of the connecting plate is L-shaped, and the short side of the L is fixedly connected with the output end of the air cylinder, so that the space setting of the bracket is facilitated, and the space utilization rate is maximized.

Preferably, the axes of the first shaft and the second shaft are on the same vertical plane, so that the parallelism between the clamping plane of the clamp and the lower bottom surface of the bracket is further ensured.

Preferably, the corner frame is a cube with an obtuse triangle bottom surface; the second shaft is arranged at an obtuse angle. The second shaft is arranged at an obtuse angle, and the fifth shaft and the sixth shaft are respectively arranged at an acute angle, so that the clamping action of the clamp can be realized in the limited stroke of the cylinder.

Preferably, the distance from the axis one to the lower bottom surface of the bracket is smaller than or equal to the sum of the distance from the axis one to the axis four and the distance from the clamping plane of the clamp to the axis four in the direction vertical to the lower bottom surface of the bracket, so that the clamp is ensured to have certain clamping force in the meshed state.

In the scheme, the invention provides the clamp feeding mechanism which comprises the clamp, the bracket, the transmission system, the air cylinder and the electromagnetic valve, wherein the electromagnetic valve controls the air cylinder to reciprocate in a linear motion, and circular motion of the clamp in a limited range is realized through the transmission of the transmission system, so that the clamping and loosening actions of the clamp are completed. The mechanism can convert the linear motion of the air cylinder into the circular motion of the clamp, and the clamping plane of the clamp is parallel to the lower bottom surface of the bracket in the motion process, so that the surface contact of the clamp when clamping the plate is realized, the surface of the plate is not damaged, the service life of the clamp feeding mechanism is ensured, the structure is simple, the action is reliable, the automatic engagement and release of the clamp are realized by controlling the action of the air cylinder through the electromagnetic valve, and the time and labor are saved.

Drawings

In order to more clearly illustrate the technical solutions of the present invention, the drawings that are needed in the description will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of the structure of the clamp feeding mechanism in a unclamped state;

FIG. 2 is a schematic view of the clamp feeding mechanism in a clamped state;

FIG. 3 is a top view of FIG. 1;

fig. 4 is a partial schematic view of a gripper motion trajectory of the present gripper feeding mechanism.

Reference numerals illustrate:

1-bracket, 2-connecting plate, 3-connecting rod one, 4-angle frame, 5-clamp, 6-connecting rod two, 7-axle one, 8-axle two, 9-axle three, 10-axle four, 11-axle five, 12-axle six, 13-cylinder, 14-solenoid valve.

Detailed Description

In order to make the technical scheme of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.

As shown in fig. 1, the clamp feeding mechanism provided by the embodiment of the invention comprises a clamp 5, a bracket 1, a transmission system, an air cylinder 13 and an electromagnetic valve 14, wherein the air cylinder 13 and the electromagnetic valve 14 are fixed on the bracket 1, the electromagnetic valve 14 controls the extension and retraction of the output end of the air cylinder 13, the output end of the air cylinder 13 is fixedly connected with the connecting plate 2, the action of the air cylinder 13 drives the connecting plate 2 to do reciprocating linear motion in a groove of the bracket 1, and the arrangement of the groove further ensures the linear motion state of the connecting plate 2.

One end of the first connecting rod 3 is rotationally connected with the connecting plate 2 through a shaft III 9, the other end of the first connecting rod 3 is rotationally connected with the first end of the angle frame 4 through a shaft six 12, and the movement track of the first connecting rod 3 is shown in figure 4; the second end of the corner bracket 4 is rotationally connected with the clamp 5 through a shaft five 11, and the third end of the corner bracket 4 is rotationally connected with the bracket 1 through a shaft two 8; one end of the second connecting rod 6 is rotationally connected with the clamp 5 through a fourth shaft 10, and the other end of the second connecting rod is rotationally connected with the bracket 1 through a first shaft 7. The distance between the axis five 11 and the axis two 8 is equal to the distance between the axis four 10 and the axis one 7, so that the parallelism between the clamping plane and the lower bottom surface of the bracket 1 in the moving process of the clamp 5 is ensured. The axial distance between the shaft five 11 and the shaft two 8 is equal to the axial distance between the shaft two 8 and the shaft six 12, and the central line of the air cylinder 13 is on the same plane with the axial lines of the shaft five 11, the shaft six 12 and the shaft three 9 when the clamp 5 is in a loosening state, so that the distance between the clamping plane and the lower bottom surface of the bracket 1 is moderate when the clamp 5 is in the loosening state, the biting force is moderate when the clamp is meshed, and the smooth putting in and taking out of the plate are realized; the unnecessary stroke of the clamp 5 is not increased and the working efficiency is not influenced because the axial distance between the second shaft 8 and the sixth shaft 12 is larger than the axial distance between the fifth shaft 11 and the second shaft 8; the stroke of the clamp 5 is not influenced on the premise of keeping a certain clamping force and the application range of the mechanism is reduced because the axial distance between the second shaft 8 and the sixth shaft 12 is smaller than the axial distance between the fifth shaft 11 and the second shaft 8; meanwhile, the clamp 5 is limited by the stroke of the air cylinder and the distance between the axis 7 of the shaft and the lower bottom surface of the clamp position of the bracket 1, so that circular motion in a certain range is realized, surface contact of the clamp when clamping the plate is realized, the surface of the plate is not damaged, and the service life of the clamp feeding mechanism is ensured. The movement track of the clamp 5 is shown in fig. 4.

Further, the distance from the axis 7 of the first shaft to the lower bottom surface of the bracket 1 is smaller than or equal to the sum of the distance from the axis 7 of the first shaft to the axis 10 of the fourth shaft and the distance from the clamping plane of the clamp 5 in the direction vertical to the lower bottom surface of the bracket 1 to the axis 10 of the fourth shaft, so that certain clamping force of the clamp in the meshed state is ensured.

Further, the shape of the connecting plate 2 is L-shaped, and the short side of the L is fixedly connected with the output end of the air cylinder 13, so that the space setting of the bracket is facilitated, and the space utilization rate is maximized.

Further, the axes of the first shaft 7 and the second shaft 8 are on the same vertical plane, so that the parallelism between the clamping plane of the clamp and the lower bottom surface of the bracket is further ensured.

Further, the corner frame 4 is a cube with an obtuse isosceles triangle on the bottom surface; the second shaft 8 is arranged at an obtuse included angle, and the fifth shaft 11 and the sixth shaft 12 are respectively arranged at an acute included angle, so that the clamping action of the clamp 5 can be realized in the limited stroke of the air cylinder 13.

The clamp 5 is in a released state as shown in fig. 1, the air cylinder 13 is retracted rightward under the control of the electromagnetic valve 14, the connecting plate 2 moves rightward, the connecting rod 3 is pulled to move rightward and rotate anticlockwise around the shaft III 9, the upper connecting rod 3 pulls the corner bracket 4 to rotate clockwise around the shaft II 8, the corner bracket 4 drives the clamp 5 to move, the connecting rod II 6 rotates clockwise around the shaft I7 under the pushing of the clamp 5, the clamp 5 rotates clockwise under the combined action of the corner bracket 4 and the connecting rod II 6, and the lower plane of the clamp 5 is kept parallel to the lower bottom plate of the bracket 1.

The clamp 5 is meshed, as shown in fig. 2, the air cylinder 13 stretches out leftwards under the control of the electromagnetic valve 14, the connecting plate 2 moves leftwards, the connecting rod one 3 is pushed to move leftwards and rotate clockwise around the shaft three 9, the connecting rod one 3 pushes the corner bracket 4 to rotate anticlockwise around the shaft two 8, the corner bracket 4 drives the clamp 5 to move, the connecting rod two 6 rotates anticlockwise around the shaft one 7 under the pushing of the clamp 5, the clamp 5 rotates anticlockwise under the combined action of the corner bracket 4 and the pull-down rod 6, and the lower plane of the clamp 5 is kept parallel to the lower bottom plate of the bracket 1.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the invention, which is defined by the appended claims.

Claims

1. The clamp feeding mechanism comprises a clamp (5), a bracket (1), a transmission system, an air cylinder (13) and an electromagnetic valve (14), wherein the air cylinder (13) and the electromagnetic valve (14) are fixed on the bracket (1), and the clamp feeding mechanism is characterized in that the electromagnetic valve (14) controls the air cylinder (13) to reciprocate in a linear mode, and circular motion of the clamp (5) in a limited range is achieved through transmission of the transmission system, so that clamping and loosening actions of the clamp (5) are completed; the clamping plane of the clamp (5) is parallel to the lower bottom surface of the bracket (1) in the moving process;

The transmission system comprises a connecting plate (2), a first connecting rod (3), an angle bracket (4), a second connecting rod (6), a first shaft (7), a second shaft (8), a third shaft (9), a fourth shaft (10), a fifth shaft (11) and a sixth shaft (12); the clamp (5) is rotationally connected with the second connecting rod (6) through the fourth shaft (10); the clamp (5) is rotationally connected with the corner bracket (4) through a fifth shaft (11); the corner frame (4) is rotationally connected with the bracket (1) through a second shaft (8); the second connecting rod (6) is rotationally connected with the bracket (1) through a first shaft (7); the corner frame (4) is rotationally connected with the first connecting rod (3) through a sixth shaft (12); the first connecting rod (3) is rotationally connected with the connecting plate (2) through a third shaft (9); the connecting plate (2) is fixedly connected to the output end of the air cylinder (13);

The axial distance between the shaft five (11) and the shaft two (8) is equal to the axial distance between the shaft two (8) and the shaft six (12); when the clamp (5) is in a released state, the center line of the cylinder (13) is on the same plane with the axes of the shaft five (11), the shaft six (12) and the shaft three (9);

The distance from the axis of the first shaft (7) to the lower bottom surface of the bracket (1) is smaller than or equal to the sum of the distance from the axis of the first shaft (7) to the axis of the fourth shaft (10) and the distance from the clamping plane of the clamp (5) to the axis of the fourth shaft (10) in the direction vertical to the lower bottom surface of the bracket (1).

2. The clamp feed mechanism of claim 1, wherein: the distance between the axes of the fifth shaft (11) and the second shaft (8) is equal to the distance between the axes of the fourth shaft (10) and the first shaft (7).

3. The clamp feed mechanism of claim 1, wherein: the bracket (1) is provided with a groove for connecting the plate (2) to move.

4. The clamp feed mechanism of claim 1, wherein: the connecting plate (2) is L-shaped, and the short side of the L is fixedly connected with the output end of the air cylinder (13).

5. The clamp feed mechanism of claim 1, wherein: the axis of the first shaft (7) and the axis of the second shaft (8) are on the same vertical plane.

6. The clamp feed mechanism of claim 1, wherein: the corner frame (4) is a cube with an obtuse triangle bottom surface; the second shaft (8) is arranged at an obtuse included angle, and the fifth shaft (11) and the sixth shaft (12) are respectively arranged at an acute included angle.