CN209868625U - Compressing self-locking mechanism - Google Patents

Abstract

The utility model relates to a compress tightly self-locking mechanism, which comprises a mounting base, lower arm, the commentaries on classics board, the connecting plate, go up arm and cylinder, the lower extreme of commentaries on classics board is equipped with first hinge hole, the upper end is equipped with the second hinge hole, one side of second hinge hole is equipped with the third hinge hole, the lower extreme of going up the arm is equipped with the arm connecting plate of machinery, first hinge hole passes through the hinge pin with commentaries on classics board hinge hole and is connected, the fourth hinge hole links to each other through the hinge pin subassembly with last arm hinge hole, the cylinder is articulated to be installed on the cylinder hinge hole, the telescopic shaft and the third hinge hole of cylinder are articulated to link to each other, the lower extreme and the second hinge hole of connecting plate are articulated to link to each other, the upper end links to each other with the fifth hinge hole is articulated, when the telescopic shaft of cylinder stretches out, the. The utility model has the advantages that: the equipment cost is low, the manufacturing cycle is short, the maintenance is simple and convenient, and the phenomenon that the equipment is suddenly cut off in operation, and a clamped object falls down and is damaged by crashing and hurting people after losing pressure is prevented.

Description

Compressing self-locking mechanism

Technical Field

The utility model relates to a self-locking mechanism technical field especially compresses tightly self-locking mechanism.

Background

In automation equipment, the manipulator snatchs the work piece by processing, then will be processed the work piece and move to the processing station, and after processing is accomplished, the rethread manipulator is grabbed and is put to the assigned position, and at the tight in-process of clamp, adopts the cylinder to provide promptly power for the manipulator usually. When an emergency occurs, the air is cut off suddenly in the running process of the equipment, and after the clamped object loses the clamping power, the object falls off and is easily damaged, even the worker is injured by a crashing object. In order to avoid the phenomenon, the cylinder is improved, and the purpose that a clamped object cannot fall off after sudden air cut-off can be achieved by designing the special self-locking cylinder, but the special self-locking cylinder is high in cost and generally needs to be customized, the manufacturing period is long, and the later maintenance is difficult.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's shortcoming, provide a self-locking mechanism that compresses tightly that equipment cost is low, preparation cycle is short and maintain simple and convenient, prevent that equipment from breaking gas suddenly in service, the cylinder does not have the air supply, loses behind the pressure tight object and drops to damage by a crashing object and injure the people.

The purpose of the utility model is realized through the following technical scheme: the pressing self-locking mechanism comprises a mounting base, a lower mechanical arm, a rotating plate, a connecting plate, an upper mechanical arm and a cylinder, wherein the lower mechanical arm is fixed on the mounting base, one side, away from the mounting base, of the lower mechanical arm is sequentially provided with an upper mechanical arm hinge hole, a rotating plate hinge hole and a cylinder hinge hole from top to bottom, the lower end of the rotating plate is provided with a first hinge hole, the upper end of the rotating plate is provided with a second hinge hole, one side of the second hinge hole is provided with a third hinge hole, the lower end of the upper mechanical arm is provided with an upper mechanical arm connecting plate, the lower end of the upper mechanical arm connecting plate is provided with a fourth hinge hole, the rear side of the upper mechanical arm connecting plate is further provided with a fifth hinge hole, the first hinge hole is connected with the rotating plate hinge hole through a hinge pin, the fourth hinge hole is hinged with the upper mechanical arm hinge hole through a hinge pin assembly, and, the telescopic shaft of the cylinder is hinged and connected with the third hinge hole, the lower end of the connecting plate is hinged and connected with the second hinge hole, the upper end of the connecting plate is hinged and connected with the fifth hinge hole, the lower mechanical arm is fixed on the upper surface of the lower mechanical arm, the upper mechanical arm is fixed on the lower surface of the upper mechanical arm, the lower mechanical arm and the upper mechanical arm are arranged oppositely, and when the telescopic shaft of the cylinder extends out, the fifth hinge hole, the second hinge hole and the first hinge hole are on the same straight line.

Further, the mounting base comprises a bottom plate, a back plate and reinforcing rib plates, the back plate is vertically fixed on the upper surface of the bottom plate, and the reinforcing rib plates are fixed between right-angle surfaces formed by the back plate and the bottom plate.

Furthermore, a fixing hole is formed in the lower mechanical arm, and the back plate is fixed to the fixing hole through a bolt.

Furthermore, a guide groove is fixed on the upper surface of the lower mechanical arm, a guide block is further arranged on the lower surface of the upper mechanical arm, and the guide block is inserted into the bottom of the guide groove in a clamping state.

Furthermore, the hinge pin assembly comprises a rotating pin and a limiting block, wherein a limiting groove is formed in one end of the rotating pin and is formed in the circumferential direction of the rotating pin, the rotating pin penetrates through the upper mechanical arm hinge hole and the fourth hinge hole during assembly, the limiting block is inserted into the limiting groove, and the limiting block is fixed on the upper mechanical arm connecting plate.

Furthermore, a bump is arranged on one side, away from the third hinge hole, of the rotating plate, and when the pressing self-locking mechanism is in a clamping state, the bump is abutted to the side wall of the lower mechanical arm.

The utility model has the advantages of it is following:

1. the utility model discloses a many link mechanism form the auto-lock when the cylinder stretches out to press from both sides tightly, prevent the equipment operation in the sudden failure of gas, the cylinder does not have the air supply, loses pressure and leads to the object that is pressed from both sides tightly to drop to damage by a crashing object and hinder the people.

2. The utility model discloses a common cylinder can form self-locking mechanism with many link mechanism, compares in adopting special auto-lock cylinder, and its cost of manufacture is low, and common cylinder need not predetermine in advance moreover, subtracts the preparation cycle of short equipment, and later maintenance is also very convenient simple moreover, and the maintenance cost also reduces by a wide margin.

Drawings

Fig. 1 is a schematic view of an assembly structure of the present invention;

FIG. 2 is a schematic structural view of a mounting base;

FIG. 3 is a schematic view of the lower robot arm;

FIG. 4 is a schematic structural view of a rotating plate;

FIG. 5 is a schematic diagram of the upper robot arm;

FIG. 6 is a schematic view of the structure of the pivot pin;

in the figure: 1-a mounting base, 11-a bottom plate, 12-a back plate, 13-a reinforcing rib plate, 2-a lower mechanical arm, 21-a rotating plate hinge hole, 22-an upper mechanical arm hinge hole, 23-a cylinder hinge hole, 24-a fixed hole, 3-a rotating plate, 31-a first hinge hole, 32-a second hinge hole, 33-a third hinge hole, 34-a bump, 4-a connecting plate, 5-an upper mechanical arm, 51-an upper mechanical arm connecting plate, 511-a fourth hinge hole, 52-a fifth hinge hole, 53-a guide block, 6-a cylinder, 7-a lower mechanical arm, 8-an upper mechanical arm, 9-a guide groove, 10-a rotating pin and 101-a limiting groove.

Detailed Description

The invention will be further described with reference to the accompanying drawings, but the scope of the invention is not limited to the following description.

As shown in fig. 1, 3, 4 and 5, the pressing self-locking mechanism includes a mounting base 1, a lower mechanical arm 2, a rotating plate 3, a connecting plate 4, an upper mechanical arm 5 and a cylinder 6, wherein the lower mechanical arm 2 is fixed on the mounting base 1, one side of the lower mechanical arm 2 away from the mounting base 1 is sequentially provided with an upper mechanical arm hinge hole 22, a rotating plate hinge hole 21 and a cylinder hinge hole 23 from top to bottom, the lower end of the rotating plate 3 is provided with a first hinge hole 31, the upper end of the rotating plate is provided with a second hinge hole 32, one side of the second hinge hole 32 is provided with a third hinge hole 33, the lower end of the upper mechanical arm 5 is provided with an upper mechanical arm connecting plate 51, the lower end of the upper mechanical arm connecting plate 51 is provided with a fourth hinge hole 511, the rear side of the upper mechanical arm connecting plate 5 is further provided with a fifth hinge hole 52, the first hinge hole 31 is connected with the rotating plate hinge hole 21 through a hinge pin, the fourth hinge hole 511 is connected with the upper mechanical arm hinge hole 22 through, the cylinder 6 is hinged to the cylinder hinge hole 23, a telescopic shaft of the cylinder 6 is hinged to the third hinge hole 33, the lower end of the connecting plate 4 is hinged to the second hinge hole 32, the upper end of the connecting plate is hinged to the fifth hinge hole 52, the lower manipulator 7 is fixed to the upper surface of the lower manipulator 2, the upper manipulator 8 is fixed to the lower surface of the upper manipulator 5, the lower manipulator 7 is opposite to the upper manipulator 8, when the telescopic shaft of the cylinder 6 extends out, the fifth hinge hole 52, the second hinge hole 32 and the first hinge hole 31 are located on the same straight line, a multi-link mechanism is formed by the upper manipulator 5, the connecting plate 4, the rotating plate 3 and the lower manipulator 2, when the cylinder 6 extends out and is clamped, self-locking is formed, sudden air break in the operation of the equipment is prevented, the cylinder 6 does not have an air source, and pressure loss causes the clamped object to fall, break and injure people.

Further, as shown in fig. 2, the mounting base 1 includes a bottom plate 11, a back plate 12 and a reinforcing rib plate 13, the back plate 12 is vertically fixed on the upper surface of the bottom plate 11, the reinforcing rib plate 13 is fixed between a right-angle surface formed by the back plate 12 and the bottom plate 11, and the mounting base 1 is arranged on the side surface of the lower mechanical arm 2, so that the mounting is compact.

Further, as shown in fig. 1 and 3, the lower robot arm 2 is provided with a fixing hole 24, the back plate 12 is fixed on the fixing hole 24 through a bolt, the number of the fixing holes 24 is multiple, the connection direction of the mounting base 1 can be adjusted according to the actual situation of the equipment, and the flexibility is high.

Further, as shown in fig. 1, a guide groove 9 is fixed on the upper surface of the lower robot arm 2, and a guide block 53 is further disposed on the lower surface of the upper robot arm 5, in a clamping state, the guide block 53 is inserted into the bottom of the guide groove 9, and when the upper robot arm 2 is pressed downward to drive the upper robot arm 8 to move downward, the guide block 53 is inserted into the bottom of the guide groove 9, so that the upper robot arm 8 is aligned with the lower robot arm 7.

Further, as shown in fig. 1 and 6, the hinge pin assembly includes a rotating pin 10 and a limiting block, one end of the rotating pin 10 is provided with a limiting groove 101, the limiting groove 101 is arranged along the circumferential direction of the rotating pin 10, and when the assembly is performed, after the rotating pin 10 passes through the upper mechanical arm hinge hole 22 and the fourth hinge hole 511, the limiting block is inserted into the limiting groove 101, and the limiting block is fixed on the upper mechanical arm connecting plate 51.

Further, the side of the rotating plate 3, which is far away from the third hinge hole 33, is provided with a protruding block 34, when the pressing self-locking mechanism is in a clamping state, the protruding block 34 abuts against the side wall of the lower mechanical arm 2, and when the protruding block 34 abuts against the side wall of the lower mechanical arm 2, the fifth hinge hole 52, the second hinge hole 32 and the first hinge hole 31 are on the same straight line, so that a certain limiting effect is achieved, and the rotating angle of the rotating plate 3 is prevented from being too large.

The working process of the utility model is as follows: fix whole self-locking mechanism that compresses tightly on equipment through mounting base 1, cylinder 6 is in the shrink state, this moment go up manipulator 8 and lower manipulator 7 separation, leave the position of being pressed from both sides the object, when pressing from both sides tightly, cylinder 6 stretches out, when stretching out the back that targets in place, fifth hinge hole 52, second hinge hole 32 and first hinge hole 31 are on same straight line, through last arm 5, connecting plate 4, commentaries on classics board 3 and lower arm 2 form many link mechanism, form the auto-lock when cylinder 6 stretches out and presss from both sides tightly, even if the equipment operation suddenly breaks off gas, cylinder 6 does not have the air supply, lose pressure, it is in the tight state all the time to go up manipulator 8 and lower manipulator 7, realize the auto-lock. When the clamping is released, the air cylinder 6 contracts and pulls the rotating plate 3, so that the rotating plate 3 rotates around the first hinge hole 31, the self-locking is broken, and meanwhile, the upper mechanical arm 8 and the lower mechanical arm 7 are loosened to put down the clamped object.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. Compress tightly self-locking mechanism, its characterized in that: the mechanical arm device comprises a mounting base (1), a lower mechanical arm (2), a rotating plate (3), a connecting plate (4), an upper mechanical arm (5) and a cylinder (6), wherein the lower mechanical arm (2) is fixed on the mounting base (1), one side, far away from the mounting base (1), of the lower mechanical arm (2) is sequentially provided with an upper mechanical arm hinge hole (22), a rotating plate hinge hole (21) and a cylinder hinge hole (23) from top to bottom, the lower end of the rotating plate (3) is provided with a first hinge hole (31), the upper end of the rotating plate is provided with a second hinge hole (32), one side of the second hinge hole (32) is provided with a third hinge hole (33), the lower end of the upper mechanical arm (5) is provided with an upper mechanical arm connecting plate (51), the lower end of the upper mechanical arm connecting plate (51) is provided with a fourth hole (511), and the rear side of the upper mechanical arm connecting plate is also provided with a, the first hinge hole (31) is connected with the hinge hole (21) of the rotating plate through a hinge pin, the fourth hinge hole (511) is connected with the hinge hole (22) of the upper mechanical arm through a hinge pin component in a hinged mode, the cylinder (6) is hinged on the cylinder hinge hole (23), the telescopic shaft of the cylinder (6) is hinged with the third hinge hole (33), the lower end of the connecting plate (4) is hinged with the second hinge hole (32), the upper end is hinged with the fifth hinge hole (52), a lower manipulator (7) is fixed on the upper surface of the lower mechanical arm (2), an upper manipulator (8) is fixed on the lower surface of the upper mechanical arm (5), the lower manipulator (7) and the upper manipulator (8) are arranged oppositely, when the telescopic shaft of the cylinder (6) extends out, the fifth hinge hole (52), the second hinge hole (32) and the first hinge hole (31) are in the same straight line.

2. The compression self-locking mechanism according to claim 1, wherein: the mounting base (1) comprises a bottom plate (11), a back plate (12) and reinforcing rib plates (13), wherein the back plate (12) is vertically fixed on the upper surface of the bottom plate (11), and the reinforcing rib plates (13) are fixed between right-angle surfaces formed by the back plate (12) and the bottom plate (11).

3. The compression self-locking mechanism of claim 2, wherein: the lower mechanical arm (2) is provided with a fixing hole (24), and the back plate (12) is fixed on the fixing hole (24) through a bolt.

4. The compression self-locking mechanism according to claim 1, wherein: a guide groove (9) is fixed on the upper surface of the lower mechanical arm (2), a guide block (53) is further arranged on the lower surface of the upper mechanical arm (5), and when the pressing self-locking mechanism is in a clamping state, the guide block (53) is inserted into the bottom of the guide groove (9).

5. The compression self-locking mechanism according to claim 1, wherein: the hinge pin assembly comprises a rotating pin (10) and a limiting block, wherein a limiting groove (101) is formed in one end of the rotating pin (10), the limiting groove (101) is formed in the circumferential direction of the rotating pin (10), the rotating pin (10) penetrates through the upper mechanical arm hinge hole (22) and the fourth hinge hole (511) during assembly, and the limiting block is inserted into the limiting groove (101) and fixed on the upper mechanical arm connecting plate (51).

6. The compression self-locking mechanism according to claim 1, wherein: one side of the rotating plate (3) far away from the third hinge hole (33) is provided with a convex block (34), and when the compression self-locking mechanism is in a clamping state, the convex block (34) is abutted against the side wall of the lower mechanical arm (2).