CN115090778A

CN115090778A - Clamp mechanism

Info

Publication number: CN115090778A
Application number: CN202210687881.3A
Authority: CN
Inventors: 伍志勇
Original assignee: Guangdong DTC Hardware Precision Manufacturing Co Ltd
Current assignee: Guangdong DTC Hardware Precision Manufacturing Co Ltd
Priority date: 2022-06-17
Filing date: 2022-06-17
Publication date: 2022-09-23

Abstract

A fixture mechanism comprises a plurality of manipulator devices, wherein each manipulator device comprises a first driver, an inclined rod assembly, a clamping block and an end cover assembly; when the manipulator device works, the first driver drives the inclined rod assembly to move linearly, the inclined rod assembly acts on the clamping block when moving, so that the clamping block moves in an opening and closing mode and acts on a workpiece, and the workpiece is automatically positioned when clamped. The clamp mechanism provided by the invention utilizes four symmetrically arranged inclined rods and clamping blocks, the inclined rods are matched with the clamping blocks through inclined planes, the linear motion of the air cylinder is converted into the opening and closing motion of the clamping blocks along the radial direction of the end cover by utilizing the inclined rods, the clamping of a workpiece is realized, and the workpiece is automatically positioned while being clamped, so that the clamped workpiece can be accurately pushed into a processing position of a mold by a manipulator device.

Description

Clamp mechanism

Technical Field

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

Background

When the slide rail is processed, the slide rail is generally pushed into a slide rail mold by an air cylinder, and then the slide rail is processed (such as punching, bending, flanging and the like) by processing equipment, for example, a lower mold for processing a drawer slide rail disclosed in 2019, 1 month and 1 day is disclosed in chinese patent document No. CN109108160A, and the drawer slide rail is pushed into the lower mold by the air cylinder for processing; however, the mode that the slide rail enters the mold cannot ensure that the slide rail can be accurately pushed into a processing position of the mold, and the positioning problem of the slide rail on the mold exists, so that the processing quality of the slide rail is influenced.

Therefore, further improvements are needed.

Disclosure of Invention

The invention aims to provide a fixture mechanism which is simple in structure, accurate in positioning, good in machining quality, high in production efficiency and strong in practicability, so as to overcome the defects in the prior art.

A fixture device designed according to the purpose comprises a plurality of mechanical arm devices and is characterized in that: the manipulator device comprises a first driver, an inclined rod assembly, a clamping block and an end cover assembly, wherein the first driver is in driving connection with the inclined rod assembly, the inclined rod assembly is matched with the clamping block, the inclined rod assembly is matched with the end cover assembly, and the clamping block is movably arranged on the end cover assembly in an opening and closing mode; when the manipulator device works, the first driver drives the inclined rod assembly to move linearly, the inclined rod assembly acts on the clamping block when moving, so that the clamping block moves in an opening and closing mode and acts on a workpiece, and the workpiece is automatically positioned when clamped.

The mechanical arm device is arranged on the first sliding seat assembly, and the first sliding seat assembly is in transmission connection with the end cover assembly; when the clamp mechanism works, the second driver drives the first sliding seat component to transversely and linearly move, so that the first sliding seat component drives the end cover component to do rotary motion, and the end cover component drives the workpiece to turn over through the clamping block during rotary motion.

The device comprises a workpiece, a first driver, a first slide seat assembly, a second driver, a second slide seat assembly, a first slide seat assembly, a second slide seat assembly, a diagonal rod assembly and a workpiece, wherein the workpiece is provided with a workpiece hole; when the clamp mechanism works, the third driver drives the second sliding seat component to do longitudinal linear motion so as to convey the workpiece to the die or move the workpiece out of the die, and when the workpiece is conveyed to the die, the elastic pushing piece elastically acts on the workpiece and positions and pushes the workpiece to a processing position on the die.

The inclined rod assembly comprises a connecting block and a plurality of inclined rods corresponding to the clamping blocks, the first driver is driven to be connected with the connecting block, the inclined rods are respectively matched and installed with the connecting block and the end cover assembly, the inclined rods are matched with the clamping blocks, the first driver drives the inclined rods to move linearly through the connecting block when the manipulator device works, and the inclined rods act on the clamping blocks during movement so that the clamping blocks can move in an opening and closing mode and act on a workpiece.

The inclined rod is provided with a first inclined matching part, the clamping block is provided with a second inclined matching part, and the inclined rod acts on the clamping block through the matching of the first inclined matching part and the second inclined matching part during linear motion.

The clamping block is provided with a guide part, the inclined rod is in guide fit with the guide part, and when the inclined rod acts on the clamping block, the clamping block performs opening and closing movement along the guide part.

The end cover assembly comprises a first transmission part, a rotation part and an end cover, the rotation part is respectively connected with the first transmission part and the end cover in a matched mode, the clamping block is movably arranged on the end cover in an opening and closing mode, the first sliding seat assembly comprises a first sliding seat and a second transmission part arranged on the first sliding seat, a second driver is in driving connection with the first sliding seat, and the first transmission part is in driving connection with the second transmission part.

The end cover is provided with a limit groove, and the clamping block moves on the limit groove in a limiting way when opening and closing.

The second sliding seat assembly comprises a second sliding seat and a first guide piece arranged on the second sliding seat, a first guide block is arranged on the first sliding seat, and the first sliding seat is arranged on the second sliding seat in a transverse sliding mode through the matching of the first guide block and the first guide piece.

The second guide piece is fixedly arranged, a second guide block is arranged on the second sliding seat, and the second sliding seat is longitudinally arranged in a sliding mode through the matching of the second guide block and the second guide piece.

The clamp mechanism provided by the invention utilizes four symmetrically arranged inclined rods and clamping blocks, the inclined rods are matched with the clamping blocks through inclined planes, the linear motion of the air cylinder is converted into the opening and closing motion of the clamping blocks along the radial direction of the end cover by utilizing the inclined rods, the clamping and the loosening of a workpiece are realized, the workpiece is automatically positioned while being clamped, the workpiece is positioned at the center position of the end cover, and the clamped workpiece can be accurately pushed into a processing position of a mold by a manipulator device.

In addition, the manipulator device can perform left-right translational motion under the driving of the first sliding seat assembly, when the first sliding seat assembly performs left-right translational motion, the end cover assembly can be overturned through the matching of the rack and the gear, and then the workpiece is driven by the clamping block to perform multi-angle overturning, so that the surfaces of the workpiece in different directions can be machined, and the universality is high; in addition, when the second sliding seat assembly pushes the workpiece into the die through the manipulator device and the clamping block loosens the workpiece, the elastic material pushing piece can enable the workpiece to accurately enter a machining position of the die, and the workpiece is further accurately positioned.

The clamp mechanism is compact and reliable in structure, can realize multiple functions, can combine more than ten mechanical arm devices into one feeding mechanism, simultaneously feeds materials for more than ten processes, and greatly improves the production efficiency.

Drawings

Fig. 1 is a schematic view of the overall structure of a clamping mechanism according to an embodiment of the present invention.

FIG. 2 is a sectional view of the overall structure of the clamping mechanism in one embodiment of the present invention.

Fig. 3 is an enlarged schematic view of a portion a in fig. 2.

Fig. 4 is a schematic view of the overall structure of the robot apparatus according to an embodiment of the present invention.

Fig. 5 is a schematic view of the overall structure of the robot apparatus in another orientation according to an embodiment of the present invention.

Fig. 6 is an exploded view of a robot apparatus according to an embodiment of the present invention.

Figure 7 is a cross-sectional view of a robot apparatus during clamping in accordance with an embodiment of the present invention.

Figure 8 is a cross-sectional view of an embodiment of the present invention when the robot apparatus is released.

FIG. 9 is a cross-sectional view of a clamping mechanism in an embodiment of the invention.

FIG. 10 is an elevation view of a clamping mechanism in an embodiment of the invention.

Fig. 11-14 are feed process diagrams of the clamping mechanism in an embodiment of the invention.

Detailed Description

The invention is further described with reference to the following figures and examples.

Referring to fig. 1 to 14, the clamping mechanism comprises a plurality of manipulator devices a, wherein each 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 is connected with the inclined rod assembly b in a driving mode, the inclined rod assembly b is matched with the clamping block 2, the inclined rod assembly b is installed in a matching mode with the end cover assembly c, and the clamping block 2 is movably arranged on the end cover assembly c in an opening and closing mode; when the manipulator device a works, the first driver 1 drives the diagonal rod component b to do longitudinal linear motion, and the diagonal rod component b acts on the clamping block 2 when moving, so that the clamping block 2 does opening and closing motion and acts on the workpiece 3, and the workpiece 3 is automatically positioned when being clamped.

The manipulator device a is transversely arranged on the first sliding seat component d, and the first sliding seat component d is in transmission connection with the end cover component c; when the clamp mechanism works, the second driver 4 drives the first sliding seat component d to do transverse linear motion, the first sliding seat component d drives the end cover component c to do rotary motion while doing transverse linear motion, and the clamping block 2 drives the workpiece 3 to turn over when the end cover component c does rotary motion.

The device is characterized by further comprising a third driver (not shown in the figure), a die 5 and a second sliding seat assembly e, wherein the die 5 is provided with a plurality of processing positions 19, the third driver is in driving connection with the second sliding seat assembly e, an elastic material pushing piece 6 which elastically acts on the workpiece 3 is arranged on the inclined rod assembly b, the elastic material pushing piece 6 comprises a spring 6.1 and a material pushing block 6.2, the spring 6.1 is elastically arranged between the inclined rod assembly b and the material pushing block 6.2, when the workpiece 3 is clamped by the clamping block 2, the material pushing block 6.2 is arranged between the spring 6.1 and the workpiece 3, and at the moment, the workpiece 3 extrudes the spring 6.1 through the material pushing block 6.2 to enable the spring 6.1 to compress and store energy; when the clamp mechanism works, the third driver drives the second sliding seat component e to do longitudinal linear motion so as to convey the workpiece 3 onto the die 5 or move the workpiece 3 out of the die 5, and when the workpiece 3 is conveyed onto the die 5, the elastic pushing piece 6 elastically acts on the workpiece 3 and positions and pushes the workpiece 3 to the processing position 19 on the die 5; specifically, the fixture mechanism is used for conveying the processing of the sliding rail, the workpiece 3 is a middle rail of the sliding rail, the length of the middle rail is different, if the length of the middle rail is short, when the middle rail is pushed to a processing position 19 of the mold 5 by the second sliding seat component e, the situation that the middle rail is not in place can occur, the elastic material pushing component 6 is arranged, after the middle rail is loosened by the clamping block 2, the elastic force of the spring 6.1 enables the material pushing block 6.2 to push the middle rail forward, the middle rail is pushed in place, namely, a range extending effect on the middle rail is achieved, the middle rail can be accurately sent to the processing position 19 of the mold 5, and if the length of the middle rail is long, when the middle rail is pushed to the processing position 19 of the mold 5 by the second sliding seat component e, the middle rail compresses the spring 6.1 through the material pushing block 6.2, and the accurate positioning of the middle rail can also be achieved.

The down tube subassembly b includes connecting

block

7 and 4 down tubes 8 that correspond with pressing from both sides tight piece 2, it sets up 4 equally to press from both sides tight piece 2, connecting block 7 includes interconnect's cylinder connecting block 7.1 and down tube connecting block 7.2, first driver 1 drive connection cylinder connecting block 7.1, the one end and the down tube connecting block 7.2 cooperation installation of down tube 8, the other end and the cooperation installation of end cover subassembly c, down tube 8 and pressing from both sides tight piece 2 and mutually supporting, manipulator device a during operation, first driver 1 drives the vertical linear motion of down tube 8 through connecting block 7, promote the tight piece 2 of the clamp of 4 directions during the motion of down tube 8, so that press from both sides tight piece 2 and radially do the motion that opens and shuts along end cover subassembly c, press from both sides tight piece 2 and press from both sides tightly or loosen work piece 3 when doing the motion that opens and shuts.

Be provided with first slope cooperation portion 8.1 on the down tube 8, be provided with second slope cooperation portion 2.1 on pressing from both sides tight piece 2, through the cooperation promotion of first slope cooperation portion 8.1 with second slope cooperation portion 2.1 when the down tube 8 linear motion presss from both sides tight piece 2 for press from both sides tight piece 2 and radially do the motion that opens and shuts along end cover subassembly c, realize turning into the linear motion of first driver 1 and press from both sides the radial motion that opens and shuts of tight piece 2.

The clamping block 2 is provided with a guide part 2.2, the inclined rod 8 is in guide fit with the guide part 2.2, the guide part 2.2 is a T-shaped groove, the other end of the inclined rod 8 is inserted into the T-shaped groove, one side wall of the T-shaped groove is obliquely arranged to form a second oblique fit part 2.1, the other end of the inclined rod 8 is obliquely arranged to form a first oblique fit part 8.1, and when the inclined rod 8 acts on the clamping block 2, the clamping block 2 is opened and closed along the direction of the T-shaped groove.

The end cover assembly c comprises a first transmission part 9, a rotation part 10 and an end cover 11, the rotation part 10 is respectively matched and connected with the first transmission part 9 and the end cover 11, the clamping block 2 is movably arranged on the end cover 11 in an opening and closing mode, the first sliding seat assembly d comprises a first sliding seat 12 and a second transmission part 13 arranged on the first sliding seat 12, a second driver 4 is in driving connection with the first sliding seat 12, the first transmission part 9 is in driving connection with the second transmission part 13, the first transmission part 9 is a gear, the second transmission part 13 is a rack, the gear is meshed with the rack, the rotation part 10 is a rotation shaft, the second driver 4 drives the first sliding seat 12 to do transverse linear motion, the first sliding seat 12 drives the rack to do transverse linear motion, the rack drives the gear to rotate when in motion, and further drives the rotation shaft to rotate, so as to drive the end cover 11 and the clamping block 2 to rotate, and further drive a workpiece 3 clamped on the clamping block 2 to overturn, as shown in fig. 9, the gears may be various in shape, such as a circular gear, an arc gear, or other types of gears, the circular gear may turn the workpiece 3 180 degrees, the arc gear may drive the workpiece 3 to turn 0 to 180 degrees, the circular gear and the rack of this embodiment may turn the workpiece 3 180 degrees, the arc gear and the rack may turn the workpiece 3 90 degrees, the middle rail is a square rail and has 4 processing surfaces, and the surfaces of the middle rail in different directions may be processed by turning the middle rail; in addition, the robot device a may not be provided with a gear, and thus, a rack is not provided at a position corresponding to the robot device a on the first carriage 12, and is used for a middle rail that does not need to be turned.

The spring 6.1 and the pushing block 6.2 are arranged on the rotating piece 10, the pushing block 6.2 is arranged between the rotating piece 10 and the clamping block 2, and the spring 6.1 is elastically arranged between the rotating piece 10 and the pushing block 6.2.

The end cover 11 is provided with limit grooves 11.1, the clamping block 2 moves on the limit grooves 11.1 in a limiting mode when opening and closing, the number of the limit grooves 11.1 is 4, the limit grooves are annularly arranged on the end cover 11, the 4 limit grooves 11.1 are arranged in a cross mode, when the clamping block 2 clamps the workpiece 3, the workpiece 3 is positioned at the center position of the end cover 11, the bottom of the limit groove 11.1 is provided with a T-shaped matching part 11.2, the clamping block 2 is provided with a T-shaped matching hole 2.3, the T-shaped matching hole 2.3 is matched with the T-shaped matching part 11.2, and when the clamping block 2 is opened, the limiting is carried out through the matching of the T-shaped matching hole 2.3 and 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, 4 limiting grooves 11.3 are further formed in the end cover 11, limiting parts 2.4 are arranged on the clamping block 2, and the limiting parts 2.4 are limited in the limiting grooves 11.3, so that the clamping block 2 cannot move longitudinally when the inclined rod 8 pushes the clamping block 2 and can only move in a radial opening and closing mode along the end cover 11.

The second slide assembly e comprises a second slide 14 and a first guide 15 arranged on the second slide 14, the first driver 1 is fixed on the first slide 12 through a fixing 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 in a transverse sliding mode through the matching of the first guide block 16 and the first guide 15, and the first guide 15 is a guide rod.

The fixture mechanism further comprises a second guide piece 17 fixedly arranged, the fixture mechanism further comprises a bottom frame 19, the second guide piece 17 and the mold 5 are arranged on the bottom frame 19, a second guide block 18 is arranged on the second sliding seat 14, the second sliding seat 14 is longitudinally arranged on the bottom frame 19 in a sliding mode through the matching of the second guide block 18 and the second guide piece 17, and the second guide piece 17 is a guide rod.

The first driver 1, the second driver 4 and the third driver are all cylinders and are controlled by an electric control device, and the clamp mechanism can arrange more than ten mechanical hand devices a on the first sliding seat 12, so that a feeding mechanism is combined, and more than ten working procedures are fed simultaneously.

The working process of the clamp mechanism is as follows:

referring to fig. 11-14, the third driver drives the second slide carriage 14 to move forward, so that the second slide carriage 14 drives the manipulator devices a to move forward through the first slide carriage 12, when the manipulator devices a move to a position close to the mold 5, the first driver 1 drives the clamping blocks 2 to close through the diagonal rod assemblies b, then the clamping blocks 2 clamp the workpiece 3 on the processing position 19 of the mold 5, then the third driver drives the second slide carriage 14 to move backward, so that the second slide carriage 14 drives the manipulator devices a to move backward through the first slide carriage 12, so that the workpiece 3 is driven to move backward, then the second driver 4 drives the first slide carriage 12 to move rightward, so that the manipulator devices a move by a step pitch, and meanwhile, the manipulator devices a with gears are driven to rotate through the meshing of the rack and the gears when the second slide carriage 12 moves, so that the gears are driven to rotate through the rotating members 10, The end cover 11 and the clamping block 2 drive the workpiece 3 to turn over, the workpiece 3 on the manipulator device a without a gear does not turn over, then the third driver drives the second slide carriage 14 to move forward again, so that the second slide carriage 14 drives each manipulator device a to move forward through the first slide carriage 12, the workpiece 3 is conveyed to a processing position 19 of the die 5, then the first driver 1 drives the clamping block 2 to open through the diagonal rod assembly b, so as to loosen the workpiece 3, then the elastic pushing piece 6 elastically acts on the workpiece 3, so that the workpiece 3 is accurately conveyed to the processing position 19 of the die 5, finally the third driver drives the second slide carriage 14 to move backward, so that the manipulator device a retreats, and the processing equipment simultaneously processes (such as punching, bending, flanging and the like) each workpiece 3 on the die 5; and then continuously circulating the process.

The foregoing is a preferred embodiment of the present invention, and the basic principles, principal features and advantages of the invention are shown and described. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, and the invention is intended to be protected by the following claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A fixture 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) is in driving connection with the inclined rod assembly (b), the inclined rod assembly (b) is matched with the clamping block (2), the inclined rod assembly (b) is installed in a matched mode with the end cover assembly (c), and the clamping block (2) is movably arranged on the end cover assembly (c) in an opening and closing mode; when the manipulator device (a) works, the first driver (1) drives the inclined rod assembly (b) to move linearly, the inclined rod assembly (b) acts on the clamping block (2) when moving, so that the clamping block (2) moves in an opening and closing mode and acts on a workpiece (3), and the workpiece (3) is automatically positioned when being clamped.

2. The clamp mechanism of claim 1, wherein: the manipulator device is characterized by further comprising a second driver (4) and a first sliding seat assembly (d), wherein the second driver (4) is in driving connection with the first sliding seat assembly (d), the manipulator device (a) is arranged on the first sliding seat assembly (d), and the first sliding seat assembly (d) is in transmission connection with the end cover assembly (c); when the clamp mechanism works, the second driver (4) drives the first sliding seat component (d) to transversely and linearly move, so that the first sliding seat component (d) drives the end cover component (c) to do rotary motion, and the end cover component (c) drives the workpiece (3) to turn over through the clamping block (2) during rotary motion.

3. The clamp mechanism of claim 2, wherein: the device is characterized by also comprising a third driver, a die (5) and a second sliding seat component (e), wherein a processing station (19) is arranged on the die (5), the third driver is in driving connection with the second sliding seat component (e), and an elastic material pushing part (6) which elastically acts on the workpiece (3) is arranged on the diagonal rod component (b); when the clamp mechanism works, the third driver drives the second sliding seat assembly (e) to do longitudinal linear motion so as to convey the workpiece (3) onto the die (5) or move the workpiece (3) out of the die (5), and when the workpiece (3) is conveyed onto the die (5), the elastic material pushing piece (6) elastically acts on the workpiece (3) and positions and pushes the workpiece (3) to the processing position (19) on the die (5).

4. The clamp mechanism of claim 1, wherein: the utility model discloses a manipulator device, including the tight piece of clamp (2), down tube subassembly (b) includes connecting block (7) and a plurality of and the down tube (8) that press from both sides tight piece (2) and correspond, connecting block (7) are connected in first driver (1) drive, down tube (8) respectively with connecting block (7), end cover subassembly (c) cooperation installation, down tube (8) and the tight piece (2) of clamp mutually support, manipulator device (a) during operation, first driver (1) pass through connecting block (7) drive down tube (8) linear motion, act on pressing from both sides tight piece (2) during down tube (8) motion, so that press from both sides tight piece (2) and make the motion of opening and shutting and act on work piece (3).

5. The clamp mechanism of claim 4, wherein: the inclined rod (8) is provided with a first inclined matching part (8.1), the clamping block (2) is provided with a second inclined matching part (2.1), and the inclined rod (8) acts on the clamping block (2) through the matching of the first inclined matching part (8.1) and the second inclined matching part (2.1) during linear motion.

6. The clamp mechanism of claim 5, wherein: the clamping block (2) is provided with a guide part (2.2), the inclined rod (8) is matched with the guide part (2.2) in a guiding way, and when the inclined rod (8) acts on the clamping block (2), the clamping block (2) performs opening and closing movement along the guide part (2.2).

7. The clamp mechanism of claim 3, wherein: the end cover assembly (c) comprises a first transmission part (9), a rotation part (10) and an end cover (11), the rotation part (10) is respectively matched and connected with the first transmission part (9) and the end cover (11), the clamping block (2) is movably arranged on the end cover (11) in an opening and closing mode, the first sliding seat assembly (d) comprises a first sliding seat (12) and a second transmission part (13) arranged on the first sliding seat (12), the second driver (4) is in driving connection with the first sliding seat (12), and the first transmission part (9) is in transmission connection with the second transmission part (13).

8. The clamp mechanism of claim 7, wherein: the end cover (11) is provided with a limiting groove (11.1), and the clamping block (2) is limited to move on the limiting groove (11.1) during opening and closing movement.

9. The clamp mechanism of claim 7, wherein: the second sliding seat assembly (e) comprises a second sliding seat (14) and a first guide piece (15) arranged on the second sliding seat (14), a first guide block (16) is arranged on the first sliding seat (12), and the first sliding seat (12) is arranged on the second sliding seat (14) in a transverse sliding mode through the matching of the first guide block (16) and the first guide piece (15).

10. The clamp mechanism of claim 9, wherein: the device is characterized by further comprising a second guide piece (17) which is fixedly arranged, a second guide block (18) is arranged on the second sliding seat (14), and the second sliding seat (14) is longitudinally arranged in a sliding mode through the matching of the second guide block (18) and the second guide piece (17).