Clamping tool of industrial robot

Abstract

The utility model relates to the technical field of industrial robots, in particular to an industrial robot clamping tool which comprises a bottom shell, the lower end of the bottom shell is in threaded connection with a bottom plate, a supporting seat is installed at the upper end of the bottom shell, a driving mechanism is installed at the upper end of the supporting seat, and the lower end of the driving mechanism penetrates through the supporting seat and extends to an inner cavity of the bottom shell. Compared with the prior art, the special-shaped workpiece clamping device is reasonable in structural design, high in practicability, convenient to effectively clamp and fix special-shaped workpieces, convenient to effectively improve the stable clamping effect and convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial robots, in particular to a clamping tool for an industrial robot. Background Art

[0002] Robot is the common name for automatically controlled machines. In contemporary industry, a robot refers to a man-made machine device that can automatically perform tasks to replace or assist human work. When a robot is working, it uses automated fixtures to clamp and transport workpieces.

[0003] Most of the existing clamping tools of industrial robots are two-jaw or three-jaw cylinder clamping mechanisms for clamping workpieces. However, due to the different types and shapes of workpieces, a single two-jaw or three-jaw clamp is only suitable for square objects when clamping the workpiece. It is not easy to clamp special-shaped objects, and its practicality is poor. Therefore, we provide a clamping tool for industrial robots to solve this problem. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a clamping tool for an industrial robot to solve the problem.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A clamping tool for an industrial robot is designed, comprising a bottom shell, a bottom plate being screwed at the lower end of the bottom shell, a support seat being installed at the upper end of the bottom shell, a driving mechanism being installed at the upper end of the support seat, the lower end of the driving mechanism penetrating the support seat and extending to the inner cavity of the bottom shell, and a clamping mechanism meshing and rotating with the driving mechanism being installed in the inner cavity of the bottom shell.

[0007] Furthermore, the driving mechanism includes a cylinder, a piston rod and a double-toothed plate. The cylinder is installed on the upper end of the support seat, and the lower end of the cylinder is connected to the double-toothed plate through the piston rod. The lower end of the double-toothed plate passes through the support seat and extends to the inner cavity of the bottom shell.

[0008] Furthermore, the clamping mechanism includes a support shaft, a gear, a mounting plate, a clamping arm, a fixed plate and a clamping assembly. The two support shafts are rotatably connected to the inner cavity of the bottom shell on both sides. The outer sides of the support shafts are installed with gears meshing with the double-toothed plates. Both ends of the support shafts pass through the bottom shell and extend to the outer side of the screw-connected mounting plate. The outer side of the mounting plate is fixedly sleeved with a clamping arm. Every two clamping arms are connected to a fixed plate, and the lower ends of every two clamping arms are connected to the clamping assembly.

[0009] Furthermore, the clamping assembly includes a clamping plate, a groove, a movable rod, a clamping column, a rubber pad, a limit plate and a spring. The clamping plate is installed at the lower end of the clamping arm. One side of the clamping plate is equidistantly provided with grooves. The inner cavity of the groove is installed with a spring. One end of the spring is connected to the clamping column. One end of the clamping column is bonded to the rubber pad. One end of the clamping column is connected to the movable rod. One end of the movable rod passes through the spring and then passes through the groove and extends to the outside to connect with the limit plate.

[0010] Furthermore, a first connecting member is installed on one side corresponding to the fixed plate, the first connecting member is movably connected to the telescopic rod through a pin, the end of the telescopic rod away from the first connecting member is movably connected to the second connecting member through a pin, and the second connecting member is installed at the lower end of the base plate.

[0011] Furthermore, the lower parts of both sides of the double-tooth plate are connected with single-tooth plates.

[0012] Furthermore, both sides of the inner cavity of the bottom shell are symmetrically connected with limit strips matching the positions of the double tooth plates.

[0013] The clamping tooling of an industrial robot proposed in the utility model has the following beneficial effects:

[0014] 1. The double toothed plate of the driving mechanism drives the two gears of the clamping mechanism to rotate, and the two gears drive the mounting plate and the clamping arm to rotate left and right through the supporting shaft, and the other end of the clamping arm drives the clamping assembly to clamp or release the workpiece. When the workpiece needs to be clamped, the multiple clamping columns on the outer sides of the clamping plates of the two clamping assemblies drive the rubber pad to move toward the workpiece, thereby clamping and pressing the workpiece. When the workpiece is a special-shaped object, the multiple clamping columns contact different positions on the surface of the special-shaped object. Since the surface of the special-shaped object is uneven or has different thicknesses, the rubber pad drives the clamping column to compress the spring and drives the movable rod to move in the direction away from the clamping plate, and then the multiple clamping columns drive the rubber pad to fit and clamp multiple positions on the surface of the special-shaped workpiece, thereby increasing the contact area with the surface of the special-shaped workpiece, which is convenient for effectively improving the stability of clamping, thereby improving the clamping effect.

[0015] 2. Single tooth plates are designed on both sides of the double tooth plates of the driving mechanism, so that when the double tooth plates move up to the highest position, the single tooth plates mesh with the gears, which is convenient for limiting the movement of the double tooth plates, and preventing the double tooth plates from moving off and between the gears, causing the clamping mechanism to lose its clamping power, thereby effectively improving the usability. The designed limit strips can effectively limit the movement of the double tooth plates, facilitate the stable up and down movement of the double tooth plates, and improve their working stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a clamping tooling for an industrial robot proposed by the utility model;

[0017] Figure 2 This is a partial three-dimensional half-section structural schematic diagram of a clamping tooling of an industrial robot proposed by the utility model;

[0018] Figure 3 This is a three-dimensional bottom-up structural schematic diagram of a partial clamping mechanism of a clamping tooling of an industrial robot proposed by the utility model;

[0019] Figure 4 The utility model is a three-dimensional half-section structural schematic diagram of a clamping assembly of a clamping tool for an industrial robot.

[0020] In the figure: bottom shell 1, bottom plate 2, support seat 3, drive mechanism 4, cylinder 41, piston rod 42, double tooth plate 43, single tooth plate 44, limit bar 46, clamping mechanism 5, support shaft 51, gear 52, mounting plate 53, clamping arm 54, fixing plate 55, first connecting member 56, telescopic rod 57, second connecting member 58, clamping assembly 59, clamping plate 591, groove 592, movable rod 593, clamping column 594, rubber pad 595, limit plate 596, spring 597. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Reference Figure 1-4 A clamping tool for an industrial robot includes a bottom shell 1, a bottom plate 2 is screwed at the lower end of the bottom shell 1, a support seat 3 is installed at the upper end of the bottom shell 1, a driving mechanism 4 is installed at the upper end of the support seat 3, the lower end of the driving mechanism 4 passes through the support seat 3 and extends to the inner cavity of the bottom shell 1, the driving mechanism 4 includes a cylinder 41, a piston rod 42 and a double tooth plate 43, the cylinder 41 is installed at the upper end of the support seat 3, the lower end of the cylinder 41 is connected to the double tooth plate 43 through the piston rod 42, the lower end of the double tooth plate 43 passes through the support seat 3 and extends to the inner cavity of the bottom shell 1, the piston rod 42 is driven by the cylinder 41 to move up and down, and the piston rod 42 drives the double tooth plate 43 to move up and down, and then the double tooth plate 43 drives the clamping mechanism 5 meshing therewith to clamp and release the workpiece, so as to facilitate and stably clamp and transport the workpiece.

[0023] The inner cavity of the bottom shell 1 is installed with a clamping mechanism 5 that meshes and rotates with the driving mechanism 4. The clamping mechanism 5 includes a support shaft 51, a gear 52, a mounting plate 53, a clamping arm 54, a fixing plate 55 and a clamping assembly 59. The two support shafts 51 are rotatably connected to the inner cavity of the bottom shell 1 on both sides. The outer side of the support shaft 51 is installed with a gear 52 that meshes with the double-toothed plate 43. The lower parts of both sides of the double-toothed plate 43 are connected to a single-toothed plate 44. The inner cavity of the bottom shell 1 is symmetrically connected with limit strips 46 that match the position of the double-toothed plate 43. Both ends of the support shaft 51 penetrate the bottom shell 1 and extend to the outer side to be screwed on the mounting plate 53. The outer side of the mounting plate 53 is fixedly sleeved with a clamping arm 54. Every two clamping arms 54 are connected to a fixing plate 55. Every two clamping arms 54 are The lower ends are commonly connected to a clamping assembly 59, which includes a clamping plate 591, a groove 592, a movable rod 593, a clamping column 594, a rubber pad 595, a limit plate 596 and a spring 597. The clamping plate 591 is installed at the lower end of the clamping arm 54, and grooves 592 are equidistantly arranged on one side of the clamping plate 591. A spring 597 is installed in the inner cavity of the groove 592. One end of the spring 597 is connected to the clamping column 594, and one end of the clamping column 594 is bonded to the rubber pad 595. One end of the clamping column 594 is connected to the movable rod 593. One end of the movable rod 593 passes through the spring 597 and then passes through the groove 592 and extends to the outside to connect to the limit plate 596. A first connecting piece 56 is installed on the corresponding side of the fixed plate 55, and the first connecting piece 56 is movably connected through a pin shaft. A telescopic rod 57 is connected, and one end of the telescopic rod 57 away from the first connecting member 56 is movably connected to a second connecting member 58 through a pin shaft. The second connecting member 58 is installed at the lower end of the bottom plate 2. When the double-toothed plate 43 of the driving mechanism 4 moves up and down, the two gears 52 meshing therewith rotate in the same or opposite directions. The single-toothed plate 44 designed on both sides of the double-toothed plate 43 makes it easy for the single-toothed plate 44 to mesh with the gear 52 when the double-toothed plate 43 moves up to the highest position, so as to facilitate the limited movement of the double-toothed plate 43, so as to avoid the double-toothed plate 43 moving to fall off between the gear 52 and causing the clamping mechanism 5 to lose the clamping power, thereby effectively improving the usability. The designed limit strip 46 effectively limits the movement of the double-toothed plate 43. It is convenient for the double-toothed plate 43 to move up and down stably, and its working stability is improved. The two gears 52 meshing on the outer side of the double-toothed plate 43 drive the mounting plate 53 and the clamping arm 54 to rotate left and right through the support shaft 51, and the other end of the clamping arm 54 drives the clamping assembly 59 to clamp or release the workpiece. At the same time, the first connecting piece 56 of the fixed plate 55 between the clamping arms 54 drives the telescopic rod 57 to perform telescopic activities, which is convenient for the stable clamping arm 54 to rotate and support, and effectively improves the stability of the rotation of the clamping arm 54. At the same time, when the clamping arm 54 moves in the same direction, its clamping arm 54 drives the clamping assembly 59 to move toward the workpiece and effectively clamp the workpiece, and when the clamping arm 54 moves in the opposite direction, it is convenient to release the workpiece, which is convenient for use.

[0024] Working principle: When the utility model is in use, the cylinder 41 drives the piston rod 42 to move up and down, and the piston rod 42 drives the double-toothed plate 43 to move up and down, and the two gears 52 meshing therewith rotate in the same or opposite directions, and the two gears 52 drive the mounting plate 53 and the clamping arm 54 to rotate left and right through the support shaft 51, and the other end of the clamping arm 54 drives the clamping assembly 59 to clamp or release the workpiece, and at the same time, the first connecting member 56 of the fixed plate 55 between the clamping arms 54 drives the telescopic rod 57 to perform telescopic activities, which facilitates the stable rotation support of the clamping arm 54, effectively improves the rotation stability of the clamping arm 54, and at the same time, when the clamping arm 54 moves in the same direction, its clamping arm 54 drives the clamping assembly 59 to move toward the workpiece and effectively clamp the workpiece When the workpiece is clamped, the multiple clamping columns 594 on the outside of the clamping plates 591 of the two clamping assemblies 59 drive the rubber pad 595 to move toward the workpiece, thereby clamping the workpiece. When the workpiece is a special-shaped object, the multiple clamping columns 594 contact different positions on the surface of the special-shaped object. Since the surface of the special-shaped object is uneven or has different thicknesses, the rubber pad 595 drives the clamping column 594 to compress the spring 597 and drive the movable rod 593 to move away from the clamping plate 591. Then, the multiple clamping columns 594 drive the rubber pad 595 to fit and clamp the surface of the special-shaped workpiece at multiple positions, thereby increasing the contact area with the surface of the special-shaped workpiece, thereby effectively improving the stability of clamping and thus improving the clamping effect.

[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A clamping tool for an industrial robot, comprising a bottom shell (1), characterized in that: The lower end of the bottom shell (1) is screwed with a bottom plate (2), the upper end of the bottom shell (1) is mounted with a support seat (3), the upper end of the support seat (3) is mounted with a driving mechanism (4), the lower end of the driving mechanism (4) passes through the support seat (3) and extends to the inner cavity of the bottom shell (1), and the inner cavity of the bottom shell (1) is mounted with a clamping mechanism (5) that meshes and rotates with the driving mechanism (4).

2. The clamping tool for an industrial robot according to claim 1, characterized in that: The driving mechanism (4) comprises a cylinder (41), a piston rod (42) and a double tooth plate (43); the cylinder (41) is mounted on the upper end of the support seat (3); the lower end of the cylinder (41) is connected to the double tooth plate (43) via the piston rod (42); the lower end of the double tooth plate (43) passes through the support seat (3) and extends to the inner cavity of the bottom shell (1).

3. The clamping tool for an industrial robot according to claim 2, characterized in that: The clamping mechanism (5) comprises a support shaft (51), a gear (52), a mounting plate (53), a clamping arm (54), a fixing plate (55) and a clamping assembly (59); the two support shafts (51) are rotatably connected to the inner cavity of the bottom shell (1) on both sides; the outer sides of the support shafts (51) are provided with gears (52) meshing with the double-toothed plate (43); both ends of the support shaft (51) pass through the bottom shell (1) and extend to the outer side of the mounting plate (53) which is screwed; the outer side of the mounting plate (53) is fixedly sleeved with a clamping arm (54); each two clamping arms (54) are connected to a fixing plate (55); and the lower ends of each two clamping arms (54) are connected to a clamping assembly (59).

4. The clamping fixture for an industrial robot according to claim 3, characterized in that: The clamping assembly (59) includes a clamping plate (591), a groove (592), a movable rod (593), a clamping column (594), a rubber pad (595), a limit plate (596) and a spring (597). The clamping plate (591) is installed at the lower end of the clamping arm (54). One side of the clamping plate (591) is equidistantly provided with grooves (592). A spring (597) is installed in the inner cavity of the groove (592). One end of the spring (597) is connected to the clamping column (594). One end of the clamping column (594) is bonded to the rubber pad (595). One end of the clamping column (594) is connected to the movable rod (593). One end of the movable rod (593) passes through the spring (597), passes through the groove (592) and extends to the outside to connect to the limit plate (596).

5. The clamping fixture for an industrial robot according to claim 3, characterized in that: A first connecting member (56) is installed on one side corresponding to the fixing plate (55), and the first connecting member (56) is movably connected to a telescopic rod (57) via a pin shaft. One end of the telescopic rod (57) away from the first connecting member (56) is movably connected to a second connecting member (58) via a pin shaft, and the second connecting member (58) is installed at the lower end of the bottom plate (2).

6. The clamping fixture for an industrial robot according to claim 2, characterized in that: The lower parts of both sides of the double tooth plate (43) are connected to single tooth plates (44).

7. The clamping tool for an industrial robot according to claim 2, characterized in that: Limiting strips (46) matching the positions of the double tooth plates (43) are symmetrically connected to both sides of the inner cavity of the bottom shell (1).

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