A clamping mechanism

Abstract

A clamping mechanism includes several manipulator devices, the manipulator device includes a first driver, an inclined rod assembly, a clamping block and an end cover assembly, the first driver drives the connected inclined rod assembly, the inclined rod assembly and the clamping block cooperate with each other, the inclined rod assembly and the end cover assembly are installed in cooperation, and the clamping block is movably arranged on the end cover assembly for opening and closing; when the manipulator device is working, the first driver drives the inclined rod assembly to move linearly, and the inclined rod assembly acts on the clamping block when moving, so that the clamping block performs an opening and closing movement and acts on the workpiece, and realizes automatic positioning of the workpiece when clamping the workpiece. The clamping mechanism of the present invention utilizes four symmetrically arranged inclined rods and clamping blocks, the inclined rods and the clamping blocks cooperate through inclined surfaces, and the linear motion of the cylinder is converted into the opening and closing motion of the clamping block along the radial direction of the end cover by the inclined rods, so as to realize the clamping of the workpiece, and the workpiece is automatically positioned while clamping, so that the clamped workpiece can be accurately pushed into the processing position of the mold by the manipulator device.

Description

Technical Field

[0001] The present invention relates to the technical field of clamps, and in particular to a clamp mechanism. Background Art

[0002] When processing the slide rail, the slide rail is generally pushed into the slide rail mold by a cylinder, and then the slide rail is processed (such as punching, bending, flanging, etc.) using processing equipment. For example, Chinese patent document No. CN109108160A disclosed on January 1, 2019 is a lower mold for processing drawer slide rails. The drawer slide rail is pushed into the lower mold for processing by a cylinder; however, this method of the slide rail entering the mold cannot guarantee that the slide rail can be accurately pushed into the processing position of the mold, and there is a problem with the positioning of the slide rail on the mold, which will affect the processing quality of the slide rail.

[0003] Therefore, further improvements are necessary. Summary of the invention

[0004] The purpose of the present invention is to provide a clamping mechanism with simple structure, accurate positioning, good processing quality, high production efficiency and strong practicality, so as to overcome the shortcomings of the prior art.

[0005] A clamping mechanism designed for this purpose includes several manipulator devices, characterized in that the manipulator device includes a first driver, an inclined rod assembly, a clamping block and an end cover assembly, the first driver drives the connected inclined rod assembly, the inclined rod assembly and the clamping block cooperate with each other, the inclined rod assembly and the end cover assembly are installed in cooperation, and the clamping block is movably arranged on the end cover assembly for opening and closing; when the manipulator device is working, the first driver drives the inclined rod assembly to move linearly, and the inclined rod assembly acts on the clamping block when moving, so that the clamping block performs an opening and closing movement and acts on the workpiece, thereby realizing automatic positioning of the workpiece when clamping the workpiece.

[0006] It also includes a second driver and a first slide assembly, the second driver drives the first slide assembly, the manipulator device is arranged on the first slide assembly, and the first slide assembly is connected with the end cover assembly by transmission; when the clamping mechanism is working, the second driver drives the first slide assembly to move linearly horizontally, so that the first slide assembly drives the end cover assembly to rotate, and when the end cover assembly rotates, the workpiece is driven to flip through the clamping block.

[0007] It also includes a third driver, a mold and a second slide assembly. The mold is provided with a processing position. The third driver drives the second slide assembly to be connected. The inclined rod assembly is provided with an elastic pusher that elastically acts on the workpiece. When the clamping mechanism is working, the third driver drives the second slide assembly to move linearly longitudinally to transport the workpiece to the mold or move the workpiece out of the mold. When the workpiece is transported to the mold, the elastic pusher elastically acts on the workpiece and positions the workpiece and pushes it to the processing position on the mold.

[0008] The oblique rod assembly includes a connecting block and a plurality of oblique rods corresponding to the clamping block. The first driver drives the connecting block. The oblique rods are respectively installed in cooperation with the connecting block and the end cover assembly. The oblique rods and the clamping block cooperate with each other. When the manipulator device is working, the first driver drives the oblique rod to move linearly through the connecting block. When the oblique rod moves, it acts on the clamping block, so that the clamping block opens and closes and acts on the workpiece.

[0009] The oblique rod is provided with a first inclined matching portion, and the clamping block is provided with a second inclined matching portion. When the oblique rod moves linearly, the first inclined matching portion and the second inclined matching portion cooperate to act on the clamping block.

[0010] The clamping block is provided with a guide part, the inclined rod is in guiding cooperation with the guide part, and when the inclined rod acts on the clamping block, the clamping block performs an opening and closing movement along the guide part.

[0011] The end cover assembly includes a first transmission component, a rotating component and an end cover, the rotating component is respectively connected to the first transmission component and the end cover, the clamping block is movably arranged on the end cover for opening and closing, the first slide assembly includes a first slide and a second transmission component arranged on the first slide, the second driver is drivingly connected to the first slide, and the first transmission component is drivingly connected to the second transmission component.

[0012] The end cover is provided with a limiting groove, and the clamping block is limitedly movable on the limiting groove when the clamping block performs opening and closing movements.

[0013] The second slide assembly includes a second slide and a first guide member arranged on the second slide, a first guide block is arranged on the first slide, and the first slide is arranged on the second slide in a transverse sliding manner through the cooperation between the first guide block and the first guide member.

[0014] The second guide member is fixedly arranged, and a second guide block is arranged on the second slide seat. The second slide seat is longitudinally slidably arranged by the cooperation of the second guide block and the second guide member.

[0015] The clamping mechanism of the present invention utilizes four symmetrically arranged inclined rods and clamping blocks. The inclined rods and the clamping blocks cooperate with each other through inclined surfaces. The linear motion of the cylinder is converted into the opening and closing motion of the clamping blocks along the radial direction of the end cover by the inclined rods, thereby realizing the clamping and loosening of the workpiece. While clamping, the workpiece is automatically positioned so that the workpiece is positioned at the center of the end cover, so that the clamped workpiece can be accurately pushed into the processing position of the mold by the robot device.

[0016] In addition, the manipulator device can perform left and right translational movement driven by the first slide assembly. When the first slide assembly performs left and right translational movement, the end cover assembly can be flipped through the cooperation of the rack and the gear, and then the workpiece can be driven to perform multi-angle flipping through the clamping block, so that the surfaces of the workpiece in multiple directions can be processed, and the versatility is high; in addition, when the second slide assembly pushes the workpiece into the mold through the manipulator device and the clamping block releases the workpiece, the elastic pusher can enable the workpiece to accurately enter the processing position of the mold, and further accurately position the workpiece.

[0017] This fixture mechanism is compact and reliable and can realize multiple functions. It can combine more than ten manipulator devices into a feeding mechanism and feed more than ten processes at the same time, greatly improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of the overall structure of the clamp mechanism in one embodiment of the present invention.

[0019] Figure 2 It is a cross-sectional view of the overall structure of the clamp mechanism in one embodiment of the present invention.

[0020] Figure 3 for Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0021] Figure 4 Schematic diagram of the overall structure of a manipulator device in one embodiment of the present invention.

[0022] Figure 5 Schematic diagram of the overall structure of the manipulator device in another aspect of an embodiment of the present invention.

[0023] Figure 6 1 is an exploded view of a manipulator device in one embodiment of the present invention.

[0024] Figure 7 It is a cross-sectional view of a robot device during clamping in one embodiment of the present invention.

[0025] Figure 8 It is a cross-sectional view of a robot device when it is released in one embodiment of the present invention.

[0026] Fig. 9 FIG. 4 is a cross-sectional view of a clamp mechanism in one embodiment of the present invention.

[0027] Fig.10 It is a front view of a clamp mechanism in one embodiment of the present invention.

[0028] Figure 11-Figure 14 Schematic diagram of the feeding process of the clamp mechanism in one embodiment of the present invention. DETAILED DESCRIPTION

[0029] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0030] See also Figure 1-Figure 14 The clamping mechanism includes a plurality of manipulator devices a, and the manipulator device a includes a first driver 1, an inclined rod assembly b, a clamping block 2 and an end cover assembly c. The first driver 1 drives the connected inclined rod assembly b, the inclined rod assembly b cooperates with the clamping block 2, the inclined rod assembly b cooperates with the end cover assembly c, and the clamping block 2 is movably arranged on the end cover assembly c; when the manipulator device a is working, the first driver 1 drives the inclined rod assembly b to move linearly longitudinally, and the inclined rod assembly b acts on the clamping block 2 when moving, so that the clamping block 2 performs an opening and closing movement and acts on the workpiece 3, thereby realizing automatic positioning of the workpiece 3 when clamping the workpiece 3.

[0031] It also includes a second driver 4 and a first slide assembly d, the second driver 4 drives and connects to the first slide assembly d, the manipulator device a is arranged horizontally on the first slide assembly d, and the first slide assembly d is connected to the end cover assembly c in transmission; when the clamping mechanism is working, the second driver 4 drives the first slide assembly d to move horizontally linearly, and the first slide assembly d moves horizontally linearly while driving the end cover assembly c to rotate, and when the end cover assembly c rotates, it drives the workpiece 3 to flip through the clamping block 2.

[0032] The tool 5 also includes a third driver (not shown in the figure), a mold 5 and a second slide assembly e. The mold 5 is provided with a plurality of processing positions 19. The third driver drives the second slide assembly e. The inclined rod assembly b is provided with an elastic pusher 6 that elastically acts on the workpiece 3. The elastic pusher 6 includes a spring 6.1 and a pusher block 6.2. The spring 6.1 is elastically arranged between the inclined rod assembly b and the pusher block 6.2. When the clamping block 2 clamps the workpiece 3, the pusher block 6.2 is arranged between the spring 6.1 and the workpiece 3. At this time, the workpiece 3 squeezes the spring 6.1 through the pusher block 6.2, so that the spring 6.1 is compressed to store energy. When the clamping mechanism is working, the third driver drives the second slide assembly e to move linearly in the longitudinal direction to transport the workpiece 3 to the mold 5 or move the workpiece 3 out of the mold 5. When the workpiece 3 is transported to the mold 5, the elastic pusher 6 acts elastically on the workpiece 3, and positions and pushes the workpiece 3 to the processing position 19 on the mold 5; specifically, the clamping mechanism is used for conveying the slide rail for processing, the workpiece 3 is the middle rail of the slide rail, and the length of the middle rail is different. If the length of the middle rail is short, when the second slide assembly e pushes the middle rail to the processing position 19 of the mold 5, the middle rail will not be in place, and an elastic pushing piece 6 is provided. When the clamping block 2 releases the middle rail, the elastic force of the spring 6.1 causes the pushing block 6.2 to push the middle rail forward and push the middle rail into place, which is equivalent to an extended range effect on the middle rail, and the middle rail can be accurately sent to the processing position 19 of the mold 5. If the length of the middle rail is long, when the second slide assembly e pushes the middle rail to the processing position 19 of the mold 5, the middle rail compresses the spring 6.1 through the pushing block 6.2, and the middle rail can also be accurately in place.

[0033] The diagonal rod assembly b includes a connecting block 7 and four diagonal rods 8 corresponding to the clamping blocks 2. Four clamping blocks 2 are also provided. The connecting block 7 includes a cylinder connecting block 7.1 and a diagonal rod connecting block 7.2 which are connected to each other. The first driver 1 drives the connected cylinder connecting block 7.1. One end of the diagonal rod 8 is installed in cooperation with the diagonal rod connecting block 7.2 and the other end is installed in cooperation with the end cover assembly c. The diagonal rod 8 cooperates with the clamping block 2. When the manipulator device a is working, the first driver 1 drives the diagonal rod 8 to move linearly longitudinally through the connecting block 7. When the diagonal rod 8 moves, it pushes the clamping blocks 2 in four directions so that the clamping blocks 2 can open and close radially along the end cover assembly c. When the clamping blocks 2 open and close, they clamp or release the workpiece 3.

[0034] A first inclined fitting portion 8.1 is provided on the inclined rod 8, and a second inclined fitting portion 2.1 is provided on the clamping block 2. When the inclined rod 8 moves linearly, the first inclined fitting portion 8.1 and the second inclined fitting portion 2.1 cooperate to push the clamping block 2, so that the clamping block 2 opens and closes radially along the end cover assembly c, thereby converting the linear motion of the first driver 1 into the radial opening and closing motion of the clamping block 2.

[0035] A guide portion 2.2 is provided on the clamping block 2, and the oblique rod 8 is guided and matched with the guide portion 2.2. The guide portion 2.2 is a T-shaped groove. The other end of the oblique rod 8 is inserted into the T-shaped groove. One side wall of the T-shaped groove is inclined to form a second inclined matching portion 2.1. The other end of the oblique rod 8 is inclined to form a first inclined matching portion 8.1. When the oblique rod 8 acts on the clamping block 2, the clamping block 2 opens and closes along the direction of the T-shaped groove.

[0036] The end cover assembly c includes a first transmission component 9, a rotating component 10 and an end cover 11. The rotating component 10 is respectively connected with the first transmission component 9 and the end cover 11. The clamping block 2 is movably arranged on the end cover 11 for opening and closing. The first slide assembly d includes a first slide 12 and a second transmission component 13 arranged on the first slide 12. The second driver 4 is drivingly connected to the first slide 12. The first transmission component 9 is drivingly connected to the second transmission component 13. The first transmission component 9 is a gear, and the second transmission component 13 is a rack. The gear and the rack are meshed with each other. The rotating component 10 is a rotating shaft. The second driver 4 drives the first slide 12 to move horizontally and linearly. When the first slide 12 moves, it drives the rack to move horizontally and linearly. When the rack moves, it drives the gear to rotate, and then drives the rotating shaft to rotate, thereby driving the end cover 11 to rotate together with the clamping block 2, and then driving the workpiece 3 clamped on the clamping block 2 to flip, such as Fig. 9 As shown, the gears have various shapes, which may be circular gears, arc gears, or other types of gears. The circular gears can flip the workpiece 3 180-360 degrees, and the arc gears can drive the workpiece 3 to flip 0-180 degrees. The cooperation between the circular gear and the rack in this embodiment can flip the workpiece 3 180 degrees, and the cooperation between the arc gear and the rack can flip the workpiece 3 90 degrees. The middle rail is a square rail with 4 processing surfaces. By flipping the middle rail, the surfaces of the middle rail in multiple directions can be processed; in addition, the robot device a may not be provided with gears, so that a rack is not provided at the position corresponding to the robot device a on the first slide 12, which is used for the middle rail that does not require flipping processing.

[0037] The spring 6.1 and the pusher block 6.2 are arranged on the rotating member 10, and the pusher block 6.2 is arranged between the rotating member 10 and the clamping block 2, and the spring 6.1 is elastically arranged between the rotating member 10 and the pusher block 6.2.

[0038] The end cover 11 is provided with a limit groove 11.1, and the clamping block 2 is limited on the limit groove 11.1 when opening and closing. There are four limit grooves 11.1, which are arranged in an annular shape on the end cover 11. The four limit grooves 11.1 are arranged in a cross shape, so that when the clamping block 2 clamps the workpiece 3, the workpiece 3 is positioned at the center of the end cover 11. The bottom of the limit groove 11.1 is provided with a T-shaped matching portion 11.2, and the clamping block 2 is provided with a T-shaped matching hole 2.3, and the T-shaped matching hole 2.3 and the T-shaped matching portion 11.2 cooperate with each other, and when the clamping block 2 is opened, the T-shaped matching hole 2.3 is limited by the cooperation with the T-shaped matching part 11.2; in addition, the direction of the limiting groove 11.1 is consistent with the direction of the T-shaped groove of the clamping block 2, and four limiting grooves 11.3 are arranged on the end cover 11, and a limiting part 2.4 is arranged on the clamping block 2. The limiting part 2.4 is limited on the limiting groove 11.3, so that when the oblique rod 8 pushes the clamping block 2, the clamping block 2 cannot move longitudinally, and can only make radial opening and closing movements along the end cover 11.

[0039] The second slide assembly e includes a second slide 14 and a first guide member 15 arranged on the second slide 14. The first driver 1 is fixed to the first slide 12 through a fixed seat 20. A first guide block 16 is arranged on the first slide 12. The first slide 12 is arranged on the second slide 14 for transverse sliding through the cooperation of the first guide block 16 and the first guide member 15. The first guide member 15 is a guide rod.

[0040] It also includes a fixed second guide member 17, and the clamping mechanism also includes a base frame 19. The second guide member 17 and the mold 5 are arranged on the base frame 19. The second slide 14 is provided with a second guide block 18. The second slide 14 is longitudinally slidably arranged on the base frame 19 through the cooperation of the second guide block 18 and the second guide member 17. The second guide member 17 is a guide rod.

[0041] The first driver 1, the second driver 4 and the third driver are all cylinders, which are controlled by an electronic control device. The clamping mechanism can set more than ten manipulator devices a on the first slide 12, thereby combining them into a feeding mechanism and feeding more than ten processes at the same time.

[0042] Working process of the clamping mechanism:

[0043] join Figure 11-Figure 14, the third driver drives the second slide 14 to move forward, so that the second slide 14 drives each robot device a to move forward through the first slide 12. When the robot device a moves to a position close to the mold 5, the first driver 1 drives the clamping block 2 to close through the inclined rod assembly b, and then the clamping block 2 clamps the workpiece 3 on the processing position 19 of the mold 5. Then the third driver drives the second slide 14 to move backward, so that the second slide 14 drives each robot device a to move backward through the first slide 12, thereby driving the workpiece 3 to move backward, and then the second driver 4 drives the first slide 12 to move right, so that the robot device a moves a step distance. At the same time, the robot device a with a gear, when the second slide 12 moves, drives the gear to rotate through the meshing of the rack and the gear, and then through the rotation The moving part 10, the end cover 11 and the clamping block 2 drive the workpiece 3 to flip, and the workpiece 3 on the manipulator device a without gears does not flip, and then the third driver drives the second slide 14 to move forward again, so that the second slide 14 drives each manipulator device a to move forward through the first slide 12, and the workpiece 3 is transported to the processing position 19 of the mold 5, and then the first driver 1 drives the clamping block 2 to open through the inclined rod assembly b, thereby releasing the workpiece 3, and then the elastic pusher 6 elastically acts on the workpiece 3, so that the workpiece 3 is accurately delivered to the processing position 19 of the mold 5, and finally the third driver drives the second slide 14 to move backward, so that the manipulator device a retreats, and the processing equipment processes each workpiece 3 on the mold 5 at the same time (such as punching, bending, flanging, etc.); then the above process is continuously repeated.

[0044] The above is a preferred embodiment of the present invention, which shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for illustrating the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A clamping mechanism, comprising a plurality of manipulator devices (a), characterized in that: The manipulator device (a) comprises a first driver (1), an inclined rod assembly (b), a clamping block (2) and an end cover assembly (c); the first driver (1) drives and connects the inclined rod assembly (b); the inclined rod assembly (b) and the clamping block (2) cooperate with each other; the inclined rod assembly (b) and the end cover assembly (c) are installed in cooperation; the clamping block (2) is movably arranged on the end cover assembly (c); when the manipulator device (a) is working, the first driver (1) drives the inclined rod assembly (b) to move linearly; when the inclined rod assembly (b) moves, it acts on the clamping block (2), so that the clamping block (2) performs an opening and closing movement and acts on the workpiece (3), and when the workpiece (3) is clamped, the workpiece (3) is automatically positioned; It also includes a second driver (4) and a first slide assembly (d), wherein the second driver (4) is connected to the first slide assembly (d), the manipulator device (a) is arranged on the first slide assembly (d), and the first slide assembly (d) is connected to the end cover assembly (c) by transmission; when the clamping mechanism is working, the second driver (4) drives the first slide assembly (d) to move linearly in the horizontal direction, so that the first slide assembly (d) drives the end cover assembly (c) to rotate, and when the end cover assembly (c) rotates, it drives the workpiece (3) to flip through the clamping block (2); The clamping mechanism further comprises a third driver, a mold (5) and a second slide assembly (e); a processing position (19) is provided on the mold (5); the third driver drives the second slide assembly (e); and the inclined rod assembly (b) is provided with an elastic pusher (6) that elastically acts on the workpiece (3); when the clamping mechanism is in operation, the third driver drives the second slide assembly (e) to move longitudinally linearly to transport the workpiece (3) to the mold (5) or to move the workpiece (3) out of the mold (5); when the workpiece (3) is transported to the mold (5), the elastic pusher (6) elastically acts on the workpiece (3) and positions and pushes the workpiece (3) to the processing position (19) on the mold (5); The inclined rod assembly (b) comprises a connecting block (7) and a plurality of inclined rods (8) corresponding to the clamping block (2); the first driver (1) drives the connecting block (7); the inclined rods (8) are respectively mounted in cooperation with the connecting block (7) and the end cover assembly (c); the inclined rods (8) and the clamping block (2) cooperate with each other; when the manipulator device (a) is working, the first driver (1) drives the inclined rods (8) to move linearly through the connecting block (7); when the inclined rods (8) move, they act on the clamping block (2), so that the clamping block (2) performs an opening and closing movement and acts on the workpiece (3); The inclined rod (8) is provided with a first inclined matching portion (8.1), and the clamping block (2) is provided with a second inclined matching portion (2.1); when the inclined rod (8) moves linearly, the first inclined matching portion (8.1) and the second inclined matching portion (2.1) cooperate to act on the clamping block (2); The clamping block (2) is provided with a guide portion (2.2), and the inclined rod (8) cooperates with the guide portion (2.2) for guiding. When the inclined rod (8) acts on the clamping block (2), the clamping block (2) performs an opening and closing movement along the guide portion (2.2); The end cover assembly (c) comprises a first transmission component (9), a rotating component (10) and an end cover (11); the rotating component (10) is respectively connected to the first transmission component (9) and the end cover (11); the clamping block (2) is movably arranged on the end cover (11); the first slide assembly (d) comprises a first slide (12) and a second transmission component (13) arranged on the first slide (12); the second driver (4) is drivingly connected to the first slide (12); and the first transmission component (9) is drivingly connected to the second transmission component (13).

2. The clamping mechanism according to claim 1, characterized in that: The end cover (11) is provided with a limiting groove (11.1), and the clamping block (2) is limited in the limiting groove (11.1) when the clamping block (2) performs an opening and closing movement.

3. The clamping mechanism according to claim 1, characterized in that: The second slide assembly (e) comprises a second slide (14) and a first guide member (15) arranged on the second slide (14); a first guide block (16) is arranged on the first slide (12); the first slide (12) is arranged on the second slide (14) in a transversely sliding manner through the cooperation between the first guide block (16) and the first guide member (15).

4. The clamping mechanism according to claim 3, characterized in that: It also includes a fixedly arranged second guide member (17), a second guide block (18) being arranged on the second slide seat (14), and the second slide seat (14) being arranged to slide longitudinally through the cooperation between the second guide block (18) and the second guide member (17).

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