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CN-224223905-U - Internal expansion grabbing device with dragging function

CN224223905UCN 224223905 UCN224223905 UCN 224223905UCN-224223905-U

Abstract

The utility model relates to the technical field of industrial manipulators, and particularly discloses an internal expansion grabbing device with a dragging function, wherein a grabbing device body comprises an internal expansion mechanism and an auxiliary dragging mechanism, and the internal expansion mechanism drives a transmission mechanism through an expansion clamping cylinder to drive expansion clamping jaws on a clamping jaw mounting tube to realize clamping; the auxiliary dragging mechanism pushes the push rod to axially move in the fixed pipe through the dragging air cylinder, and positioning or separating of the workpiece is completed in an auxiliary mode. Through the coaxial compound design of interior expanding mechanism and supplementary mechanism of dragging, realize snatching and breaking away from the functional integration, this device can continuously tighten the work piece under the influence of gravity under vertical state, and the clamping jaw atress is less, and is not fragile.

Inventors

  • Lin Nike
  • Lin Duojiao
  • HAN XIA

Assignees

  • 易升设备(上海)有限公司

Dates

Publication Date
20260512
Application Date
20250519

Claims (10)

  1. 1. The inner expansion grabbing device with the dragging function comprises a grabbing device body, and is characterized in that the grabbing device body comprises an inner expansion mechanism and an auxiliary dragging mechanism; The inner expanding mechanism comprises a fixed bracket, an expansion clamping cylinder is arranged above the fixed bracket, a mounting bracket is arranged on the front side of the fixed bracket, a fixed pipe is connected to the front side of the mounting bracket, a clamping jaw mounting pipe is sleeved on the outer side of the fixed pipe, at least two mounting grooves are formed in the clamping jaw mounting pipe, and an expansion clamping jaw is arranged in the mounting groove; The auxiliary dragging mechanism comprises a dragging cylinder, the front part of the dragging cylinder is connected with the mounting bracket, the dragging cylinder comprises a second piston rod, the front part of the second piston rod penetrates through the mounting bracket and stretches into the fixing pipe, the front part of the second piston rod is connected with a push rod, and the diameter of the push rod is smaller than the inner diameter of the fixing pipe.
  2. 2. The inner expansion grabbing device with a dragging function according to claim 1, wherein the transmission mechanism comprises a connecting rod connected with a first piston rod, the connecting rod is rotatably connected with the upper part of the first connecting rod through a first rotating shaft, and the first connecting rod is bent; The rear side of clamping jaw installation tube is equipped with the fixed axle, the middle part of first connecting rod with the fixed axle rotates to be connected, the lower part of first connecting rod is rotated through the second pivot and is connected with the second connecting rod, the lower part of installing support is equipped with the support, the second connecting rod through the third pivot with the support rotates to be connected.
  3. 3. The inner expansion grabbing device with the dragging function according to claim 1, wherein the rear portion of the expansion clamping jaw is rotatably connected with the inner wall of the installation groove through a fourth rotating shaft, an expansion head matched with the position of the expansion clamping jaw is arranged on the front side of the fixed tube, the expansion head is in a block shape, and one side surface of the expansion head, which is close to the expansion clamping jaw, is obliquely arranged.
  4. 4. The inner expansion grabbing device with the dragging function according to claim 1, wherein an inner support guide sleeve is sleeved on the outer side of the clamping jaw mounting tube, and the inner support guide sleeve is arranged on the rear side of the mounting groove.
  5. 5. The inner expansion gripping device with a dragging function according to claim 2, wherein the number of the first connecting rods is two, and the two first connecting rods are respectively arranged at two sides of the connecting rod.
  6. 6. The inner expansion grabbing device with the dragging function according to claim 1, wherein a fixing bolt is screwed on the fixing tube, and a limiting clamping groove matched with the fixing bolt is formed in the inner wall of the clamping jaw mounting tube.
  7. 7. The inner expansion gripping device with a dragging function according to claim 1, wherein the number of the mounting grooves is three, and the three mounting grooves are arranged on the clamping jaw mounting tube at equal angles along the circumferential direction.
  8. 8. The inner expansion gripping device with a dragging function according to claim 1, wherein the expansion gripping jaw comprises a base plate, an anti-skid plate is arranged on the outer side of the base plate, and anti-skid patterns are arranged on the anti-skid plate.
  9. 9. The inner expansion gripping device with a dragging function according to claim 6, wherein one end of the base plate, which is close to the expansion head, is provided with a rounded corner.
  10. 10. The internal expansion grabbing device with a dragging function according to claim 1, wherein fixing rods are arranged on two sides of the mounting support, fixing pieces are arranged on the fixing rods, and mounting holes are formed in the fixing pieces.

Description

Internal expansion grabbing device with dragging function Technical Field The utility model relates to the technical field of industrial manipulators, in particular to an internal expansion grabbing device with a dragging function. Background At present, in a processing factory, workpieces on a bracket can be grabbed and transferred by means of an expansion head manipulator so as to facilitate subsequent processing of the workpieces, however, when the workpieces are grabbed by the traditional expansion head manipulator, the problems of insufficient clamping force and poor stability of a clamping jaw structure exist, smooth workpiece taking out of the bracket is not facilitated, particularly, continuous output force is required when the workpieces are grabbed by the expansion head manipulator in the vertical direction, the clamping jaw stress is large, the workpiece taking out of the bracket is more laborious, and the situations of clamping jaw failure and workpiece sliding are easily caused. Disclosure of utility model In order to solve the problems in the prior art, the utility model provides an internal expansion grabbing device with a dragging function. The aim of the utility model can be achieved by the following technical scheme: an inner expansion grabbing device with a dragging function comprises a grabbing device body, wherein the grabbing device body comprises an inner expansion mechanism and an auxiliary dragging mechanism; The inner expanding mechanism comprises a fixed support, an expansion clamping cylinder is arranged above the fixed support, a mounting support is arranged on the front side of the fixed support, a fixed pipe is connected to the front side of the mounting support, a clamping jaw mounting pipe is sleeved on the outer side of the fixed pipe, at least two mounting grooves are formed in the clamping jaw mounting pipe, and expansion clamping jaws are arranged in the mounting grooves; the expansion clamping cylinder comprises a first piston rod, and the first piston rod is connected with the clamping jaw mounting pipe through a transmission mechanism; The auxiliary dragging mechanism comprises a dragging cylinder, the front part of the dragging cylinder is connected with the mounting bracket, the dragging cylinder comprises a second piston rod, the front part of the second piston rod penetrates through the mounting bracket and stretches into the fixing pipe, the front part of the second piston rod is connected with a push rod, and the diameter of the push rod is smaller than the inner diameter of the fixing pipe. Further, the transmission mechanism comprises a connecting rod connected with the first piston rod, the connecting rod is rotationally connected with the upper part of the first connecting rod through a first rotating shaft, and the first connecting rod is bent; The rear side of clamping jaw installation tube is equipped with the fixed axle, the middle part of first connecting rod with the fixed axle rotates to be connected, the lower part of first connecting rod is rotated through the second pivot and is connected with the second connecting rod, the lower part of installing support is equipped with the support, the second connecting rod through the third pivot with the support rotates to be connected. Further, the rear portion of the expansion clamping jaw is rotationally connected with the inner wall of the mounting groove through a fourth rotating shaft, an expansion head matched with the position of the expansion clamping jaw is arranged on the front side of the fixed pipe, the expansion head is in a block shape, and one side of the expansion head, which is close to the expansion clamping jaw, is obliquely arranged. Further, the outside cover of clamping jaw installation tube is equipped with interior support guide sleeve, interior support guide sleeve sets up the rear side at the mounting groove. Further, the number of the first connecting rods is two, and the two first connecting rods are respectively arranged on two sides of the connecting rod. Further, a fixing bolt is screwed on the fixing pipe, and a limiting clamping groove matched with the fixing bolt is formed in the inner wall of the clamping jaw mounting pipe. Further, the number of the mounting grooves is three, and the three mounting grooves are arranged on the clamping jaw mounting tube along the circumferential direction at equal angles. Further, the expansion clamping jaw comprises a base plate, a antiskid plate is arranged on the outer side of the base plate, and antiskid lines are arranged on the antiskid plate. Further, one end of the base plate, which is close to the expansion head, is provided with a rounding angle. Furthermore, both sides of the mounting bracket are provided with fixing rods, the fixing rods are provided with fixing plates, and the fixing plates are provided with mounting holes. The beneficial effects of the utility model are as follows: (1) Through the coaxial compound design of in