CN217755770U

CN217755770U - Machining grabbing device capable of preventing workpiece damage

Info

Publication number: CN217755770U
Application number: CN202222109180.XU
Authority: CN
Inventors: 汪磊; 马萍; 韩基泰; 李庆华; 王可庆; 皇甫紫薇; 董良新
Original assignee: Wuxi University
Current assignee: Wuxi University
Priority date: 2022-08-11
Filing date: 2022-08-11
Publication date: 2022-11-08
Anticipated expiration: 2032-08-11

Abstract

The utility model provides a prevent machining grabbing device of work piece damage relates to machining technical field, include: mounting panel, through-hole, threaded rod, splint, drive assembly, stop device and elasticity buffering subassembly. The problem of current robotic arm leave the clamp mark to the clamping work piece easily is solved, and the clamp force that the elasticity buffering subassembly received the work piece is cushioned through the elasticity, has both prevented that the work piece from receiving the damage, can adjust two splint simultaneously again, has improved work efficiency.

Description

Machining grabbing device capable of preventing workpiece damage

Technical Field

The utility model relates to a machining technical field especially relates to a prevent machining grabbing device of work piece damage.

Background

Current grabbing device is when getting the instrument clamp among the prior art, the too tight condition of centre gripping can appear, and then leaves the clamp mark on the workpiece surface easily, and the post processing is wasted time and energy, and the position of both sides splint need be adjusted respectively to the most needs of current grabbing device moreover, and the operation process is too loaded down with trivial details, influences work efficiency. For example, patent "CN110281227a" discloses a robotic arm for loading and unloading grabbing, which can clamp the required material through mechanical drive, but cannot clamp the existing large material, and the device cannot adjust the tightness of the gripper, and no buffer device is provided to easily leave a clamp mark on the surface of the workpiece.

Disclosure of Invention

In order to solve the problem that clamping marks are easily left on a clamped workpiece in the prior art, the mechanical processing gripping device for preventing the workpiece from being damaged comprises a mounting plate; the middle part of the mounting plate is provided with a through hole in a penetrating way; a threaded rod is sleeved in the through hole; both sides of the lower end of the threaded rod are rotatably connected with clamping plates along the long edge direction of the mounting plate; the upper surface of the mounting plate is provided with a driving component for driving the threaded rod to move along the vertical direction; the two clamping plates are respectively provided with a limiting component used for clamping or loosening the workpiece along with the movement of the threaded rod; the lower ends of the two clamping plates are provided with clamping strips; the lower extreme of two splint all is provided with two elasticity buffering subassemblies that are used for driving the holding strip to the removal of mounting panel middle part.

The utility model provides a mechanical processing gripping device for preventing workpiece damage, preferably, both sides of the lower end of the threaded rod are fixedly connected with a fixed shaft; the upper ends of the two clamping plates are fixedly connected with rotating sleeves which are sleeved with the fixed shaft.

The utility model provides a mechanical processing gripping device for preventing workpiece damage, preferably, the driving component comprises a motor; the motor is fixedly arranged on the upper surface of the mounting plate; a first gear is fixedly connected to an output shaft of the motor; the external thread of the threaded rod is connected with a threaded sleeve; the threaded sleeve is rotationally connected to the upper surface of the mounting plate; and a second gear meshed with the first gear is fixedly connected to the outer side of the threaded sleeve.

The mechanical processing gripping device for preventing the workpiece from being damaged provided by the utility model has the advantages that preferably, a limiting block is fixedly connected in the through hole; the threaded rod is provided with a limiting chute which is connected with the limiting block in a sliding manner.

The utility model provides a mechanical processing gripping device for preventing workpiece damage, preferably, the limiting component comprises a vertical rod; the upper end of the vertical rod is fixedly connected with the bottom surface of the mounting plate; a movable groove which is connected with the vertical rod in a sliding way is arranged on the side wall of the clamping plate; the upper side and the lower side of each vertical rod are respectively connected with a limiting rod arranged along the width direction of the mounting plate in a penetrating way; the clamping plate is positioned between the upper limiting rod and the lower limiting rod; the vertical rod and the movable groove are both arranged in a square shape and are in clearance fit.

The utility model provides a mechanical processing gripping device for preventing workpiece damage, preferably, the elastic buffer component comprises a spring groove; the spring groove is arranged at the lower end of the clamping plate; a movable rod is connected in the spring groove in a sliding manner; one end of the movable rod is fixedly connected with the holding strip; a spring is connected between the other end of the movable rod and the spring groove.

The utility model provides a mechanical processing gripping device for preventing workpiece damage, preferably, the upper surface of the mounting plate is fixedly connected with a fixing frame; the two holding strips are made of elastic materials; the opposite surfaces of the two clamping strips are arranged in a cambered surface mode.

The utility model provides a prevent machining grabbing device of work piece damage, include: mounting panel, threaded rod, through-hole, splint, drive assembly, stop device and elasticity buffering subassembly. The problem of current robotic arm leave the clamp mark to the clamping work piece easily is solved, and the clamp force that the elasticity buffering subassembly received the work piece is cushioned through the elasticity, has both prevented that the work piece from receiving the damage, can adjust two splint simultaneously again, has improved work efficiency.

Drawings

FIG. 1 is a schematic view of a mechanical work gripping apparatus for preventing damage to a work piece;

FIG. 2 is a perspective view of the mounting plate;

fig. 3 is a cross-sectional view of a portion of the splint.

Reference numbers in the figures: the device comprises a mounting plate 1, a fixed frame 1-1, a through hole 2, a limiting block 2-1, a limiting sliding groove 2-2, a threaded rod 3, a fixed shaft 3-1, a rotating sleeve 3-2, a clamping plate 4, a clamping strip 4-1, a driving assembly 5, a motor 5-1, a gear I5-2, a threaded sleeve 5-3, a gear II 5-4, a limiting device 6, a vertical rod 6-1, a movable groove 6-2, a limiting rod 6-3, an elastic buffering assembly 7, a spring groove 7-1, a movable rod 7-2 and a spring 7-3.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific preferred embodiments.

In the description of the present invention, it should be understood that the terms "left side", "right side", "upper part", "lower part" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, "first", "second" and the like do not indicate the degree of importance of the component parts, and thus, are not to be construed as limiting the present invention. The specific dimensions used in the present embodiment are only for illustrating the technical solution, and do not limit the protection scope of the present invention.

Example 1:

as shown in fig. 1-3, the present invention provides a mechanical processing gripping device for preventing a workpiece from being damaged, which comprises a mounting plate 1; the middle part of the mounting plate 1 is provided with a through hole 2 in a penetrating way; a threaded rod 3 is sleeved in the through hole 2; both sides of the lower end of the threaded rod 3 are rotatably connected with clamping plates 4 along the long edge direction of the mounting plate 1; the upper surface of the mounting plate 1 is provided with a driving component 5 for driving the threaded rod 3 to move along the vertical direction; the two clamping plates 4 are respectively provided with a limiting component 6 used for clamping or loosening a workpiece along with the movement of the threaded rod 3; the lower ends of the two clamping plates 4 are provided with clamping strips 4-1; the lower ends of the two clamping plates 4 are respectively provided with two elastic buffer components 7 which are used for driving the clamping strips 4-1 to move towards the middle part of the mounting plate 1.

As an optional implementation mode, both sides of the lower end of the threaded rod 3 are fixedly connected with a fixed shaft 3-1; the upper ends of the two clamping plates 4 are fixedly connected with rotating sleeves 3-2 which are sleeved with the fixed shafts 3-1, and the clamping plates 4 can be more stable in rotating by arranging the fixed shafts 3-1 and the rotating sleeves 3-2.

As an alternative embodiment, the driving assembly 5 comprises a motor 5-1; the motor 5-1 is fixedly arranged on the upper surface of the mounting plate 1; a first gear 5-2 is fixedly connected to an output shaft of the motor 5-1; the external thread of the threaded rod 3 is connected with a threaded sleeve 5-3; the threaded sleeve 5-3 is rotatably connected to the upper surface of the mounting plate 1; the outer side of the threaded sleeve 5-3 is fixedly connected with a gear II 5-4 meshed with the gear I5-2. Through the arrangement of the motor 5-1, the gear I5-2, the threaded sleeve 5-3 and the gear II 5-4, the motor 5-1 can drive the gear I5-2 to rotate and simultaneously drive the meshed gear II 5-4 to rotate, and the gear II 5-4 drives the fixedly connected threaded sleeve 5-3 to rotate, so that the threaded rod 3 is driven to move up and down through the rotation of the threaded sleeve 5-3.

As an optional implementation mode, a limiting block 2-1 is fixedly connected in the through hole 2; the threaded rod 3 is provided with a limiting chute 2-2 which is connected with the limiting block 2-1 in a sliding way; by arranging the limiting blocks 2-1 and the limiting chutes 2-2, the threaded rod 3 can be more stable when moving up and down, and meanwhile, the threaded sleeve 5-3 is prevented from driving the threaded rod 3 to rotate together when rotating.

As an alternative embodiment, the limiting component 6 comprises a vertical rod 6-1; the upper end of the vertical rod 6-1 is fixedly connected with the bottom surface of the mounting plate 1; a movable groove 6-2 which is connected with the vertical rod 6-1 in a sliding way is arranged on the side wall of the clamping plate 4; the upper side and the lower side of the vertical rod 6-1 are respectively connected with a limiting rod 6-3 arranged along the width direction of the mounting plate 1 in a penetrating way; the clamping plate 4 is positioned between the upper and lower limiting rods 6-3; the vertical rod 6-1 and the movable groove 6-2 are both arranged in a square shape and are in clearance fit. Through the arrangement of the vertical rod 6-1, the movable groove 6-2 and the limiting rod 6-3, when the upper rotating positions of the two clamping plates 4 move downwards, the two clamping plates 4 are driven to simultaneously move downwards to be in contact with the lower limiting rod 6-3 to support the two clamping plates 4 to be opened, when the two clamping plates 4 move upwards, the two clamping plates are in contact with the upper limiting rod 6-3 to extrude the outer sides of the two clamping plates 4, the lower ends of the two clamping plates 4 are driven to mutually approach, and clamping is completed; the vertical rod 6-1 and the movable groove 6-2 are arranged to be square, so that the clamping plate 4 is more stable when moving up and down.

As an alternative embodiment, the elastic buffer member 7 includes a spring groove 7-1; the spring groove 7-1 is arranged at the lower end of the clamping plate 4; a movable rod 7-2 is connected in the spring groove 7-1 in a sliding way; one end of the movable rod 7-2 is fixedly connected with the holding strip 4-1; a spring 7-3 is connected between the other end of the movable rod 7-2 and the spring groove 7-1; by arranging the spring groove 7-1, the movable rod 7-2 and the spring 7-3, the movable rod 7-2 can be driven to move into the spring groove 7-1 by the clamping strip 4-1 when contacting with a workpiece, and the spring 7-3 is extruded at the same time, so that the clamping force applied to the workpiece is buffered by the elasticity of the spring 7-3, and the workpiece is prevented from being damaged.

As an optional embodiment, a fixed frame 1-1 is fixedly connected to the upper surface of the mounting plate 1; the two holding strips 4-1 are both made of elastic materials; the elastic material is preferably a rubber material, and the opposite surfaces of the two holding strips 4-1 are arranged in a cambered surface manner; the clamping strip 4-1 is made of rubber, so that the clamping strip 4-1 can effectively protect a contact point when contacting with a workpiece, and the workpiece is prevented from being scratched.

The working principle is as follows:

when the clamping device is used, the clamping device is moved to the position above a workpiece to be clamped, the threaded rod 3 is driven to move upwards in the through hole 2 by controlling the driving component 5, the upper ends of the two clamping plates 4 are driven to move upwards simultaneously, when the clamping plates 4 on the two sides are contacted with the limiting component 6, the lower ends of the two clamping plates 4 are driven to be close to each other until the clamping strips 4-1 on the two sides are contacted with the workpiece to drive the clamping strips to overcome the elasticity of the elastic buffering component 7 to move, the clamping force applied to the workpiece is buffered by the elasticity of the elastic buffering component 7, and the workpiece is prevented from being damaged.

To sum up, the utility model provides a pair of prevent machining grabbing device of work piece damage through the cooperation of mounting panel 1, through-hole 2, threaded rod 3, splint 4, drive assembly 5, stop device 6 and elasticity buffering subassembly 7. The problem of current robotic arm leave the clamp mark to being held the work piece easily is solved, and the clamp force that the elasticity buffering subassembly 7 received the work piece is cushioned through the elasticity, has both prevented that the work piece from receiving the damage, can adjust two splint 4 simultaneously again, has improved work efficiency.

While the present invention has been described in detail with reference to the preferred embodiments thereof, it should be understood that the above description should not be taken as limiting the present invention. Numerous modifications and alterations to the present invention will become apparent to those skilled in the art upon reading the foregoing description. The technical idea of the utility model within the scope, can be right the utility model discloses a technical scheme carries out multiple transform of equaling, and these transform of equaling all belong to the utility model discloses a protection scope.

Claims

1. The mechanical processing gripping device for preventing the workpiece from being damaged comprises a mounting plate and is characterized in that a through hole is formed in the middle of the mounting plate in a penetrating manner; a threaded rod is sleeved in the through hole; both sides of the lower end of the threaded rod are rotatably connected with clamping plates along the long edge direction of the mounting plate; the upper surface of the mounting plate is provided with a driving assembly for driving the threaded rod to move along the vertical direction; the two clamping plates are respectively provided with a limiting component used for clamping or loosening a workpiece along with the movement of the threaded rod; the lower ends of the two clamping plates are provided with clamping strips; the lower extreme of two splint all is provided with two and is used for driving the holding strip to the elasticity buffering subassembly that the mounting panel middle part removed.

2. The gripping apparatus for preventing damage to a workpiece according to claim 1, wherein a fixed shaft is fixedly connected to both sides of the lower end of the threaded rod; the upper ends of the two clamping plates are fixedly connected with rotating sleeves which are sleeved with the fixed shafts.

3. The invention of claim 1 wherein said drive assembly includes a motor; the motor is fixedly arranged on the upper surface of the mounting plate; a first gear is fixedly connected to an output shaft of the motor; the external thread of the threaded rod is connected with a threaded sleeve; the threaded sleeve is rotatably connected to the upper surface of the mounting plate; and a second gear meshed with the first gear is fixedly connected to the outer side of the threaded sleeve.

4. The gripping device for preventing the damage of the workpiece in the machining process according to claim 1, wherein a limiting block is fixedly connected in the through hole; and the threaded rod is provided with a limiting chute in sliding connection with the limiting block.

5. The apparatus of claim 1, wherein the stop assembly comprises a vertical post; the upper end of the vertical rod is fixedly connected with the bottom surface of the mounting plate; a movable groove which is connected with the vertical rod in a sliding way is formed in the side wall of the clamping plate; the upper side and the lower side of each vertical rod are respectively connected with a limiting rod arranged along the width direction of the mounting plate in a penetrating manner; and the clamping plates are positioned between the limiting rods on the upper side and the lower side, and the vertical rods and the movable grooves are both in square arrangement and are in clearance fit.

6. The apparatus according to claim 1, wherein the resilient buffer member comprises a spring slot; the spring groove is formed at the lower end of the clamping plate; a movable rod is connected in the spring groove in a sliding manner; one end of the movable rod is fixedly connected with the clamping strip; and a spring is connected between the other end of the movable rod and the spring groove.

7. The gripping apparatus for preventing damage to workpieces of claim 1 wherein a fixed frame is fixedly attached to the upper surface of the mounting plate; the two holding strips are made of elastic materials; the opposite surfaces of the two clamping strips are arranged in a cambered surface mode.