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Internal-expanding hollow cylinder clamp with rolling wheel

A hollow cylinder, internal tensioning technology, applied in the direction of expanding the mandrel, etc., can solve the problems of easy separation of the cylinder, reduction of the friction block and the clamping force of the cylinder, and loosening of the cylinder, so as to achieve good clamping. Effect, stable and powerful clamping, convenient release effect

Active Publication Date: 2018-11-16
SUZHOU GUANGXING MOLD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] During the workpiece cutting process, due to the gravity of the cylinder, machining vibration, workpiece movement, temperature rise, etc., the clamped part of the cylinder is prone to deformation, which leads to a decrease in the clamping force between the friction block and the cylinder, and the cylinder The body is easy to break away from the grip of the fixture, and the cylinder is loose, resulting in poor machining accuracy or safety accidents

Method used

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  • Internal-expanding hollow cylinder clamp with rolling wheel
  • Internal-expanding hollow cylinder clamp with rolling wheel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] like figure 1 , 2 As shown, an inner-stretching hollow cylinder clamp with a roller includes: a main shaft 1, a fastener 2, a looper 3, and the looper is provided with an internal thread and is sleeved on one side of the main shaft;

[0026] The main shaft 1 is provided with an external thread 101 that matches the inner thread of the looper, and a fixed plate 102 is vertically arranged on one end of the main shaft 1 relative to the looper 3;

[0027] The fastener 2 includes a connecting rod, a rotating shaft 203 and a tightening roller 206. The connecting rod includes a first connecting rod 201 and a second connecting rod 202. One end of the first connecting rod 201 is connected to the rotating shaft and the other end is The fixed plate 102 is connected to the hinge; one end of the second connecting rod 202 is connected to the hinge of the rotating shaft, and the other end is connected to the hinge of the looper 3. The cross-section of the tightening roller 206 is in t...

Embodiment 2

[0037] When the spindle 1 rotates clockwise, the looper approaches the fixing plate 102 along the thread, the tightening roller 206 is lifted, and the workpiece is clamped; when the spindle 1 rotates counterclockwise, the looper moves away from the fixing plate along the thread. The disc 102, the tightening roller 206 descend, and the workpiece is released.

[0038] During the cutting process of the workpiece, due to the self-weight of the barrel, machining vibration, workpiece movement, temperature rise, etc., the clamped part of the barrel is loose or deformed. At this time, the tightening roller 206 is provided on the sulfur-free hard rubber layer 204. It rotates with the workpiece under the frictional force, so that the tension of the inner tension hollow cylinder clamp increases, the frictional force on the inner wall of the workpiece increases, and the workpiece is prevented from loosening.

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Abstract

The invention relates to an internal-expanding hollow cylinder clamp with a rolling wheel. The internal-expanding hollow cylinder clamp comprises a main shaft, fastening pieces and a movable sleeve, wherein an inner internal thread is formed in the movable sleeve, and the movable sleeve sleeves one side of the main shaft; an external thread matched with the internal thread of the movable sleeve isformed in the whole main shaft, and a fixing disc is perpendicularly arranged at the end, relative to the movable sleeve, on the main shaft; the fastening pieces comprise connecting rods, rotating shafts and fastening rollers, the connecting rods comprise first connecting rods and second connecting rods, the first connecting rods are hinged to the rotating shafts, and the second connecting rods are hinged to the rotating shafts; cross sections of the fastening rollers are gradually-open circular, and the fastening rollers positively rotate or negatively rotate around the rotating shafts, andare connected with the rotating shafts through torsion springs. According to the internal-expanding hollow cylinder clamp with the rolling wheel, clamping is stable and powerful and convenient to loosen, and the internal-expanding hollow cylinder clamp can adapt to small deformations in the processing process of workpieces, and has the good clamping effect on hollow cylinders or pipes with different sizes and different shapes.

Description

technical field [0001] The invention belongs to the field of metal cutting processing fixtures, and in particular relates to an inner-stretching hollow cylinder fixture with rollers. Background technique [0002] During the cutting process of the workpiece, due to the weight of the cylinder, the machining vibration, the movement of the workpiece, the temperature rise, etc., the clamped part of the cylinder is easily deformed, which leads to the reduction of the clamping force between the friction block and the cylinder, and the cylinder is easily deformed. The body is easy to be released from the clamping of the fixture, and the cylinder body is loose, resulting in poor machining accuracy or safety accidents. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to provide an inner-stretching hollow cylinder clamp with rollers that can stably clamp the workpiece. [0004] Another object of the present invention is to provide an inner-stretching hollow ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B31/42
CPCB23B31/42
Inventor 马广兴
Owner SUZHOU GUANGXING MOLD
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