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Steel pipe clamping device and method

A clamping device and clamping method technology, applied in the direction of clamps, manufacturing tools, etc., can solve the problems of high overall cost of noise, too many driving devices, complicated adjustment, etc., and achieve the effects of simplified structure, reduced cost, and simple adjustment

Pending Publication Date: 2019-04-05
CHINA NAT HEAVY MACHINERY RES INSTCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the problems of existing steel pipe clamping devices such as complex structure, too many driving devices, complicated adjustment, noise and high overall cost, the present invention provides a steel pipe clamping device and method. The present invention only needs one hydraulic cylinder to drive, and can Realize the synchronous movement of the left and right clamps, and clamp the steel pipe in the middle, which greatly simplifies the structure of the system, saves space, avoids too many driving devices, and is easy to adjust, greatly reducing the cost

Method used

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  • Steel pipe clamping device and method
  • Steel pipe clamping device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A steel pipe clamping device, comprising a box body 10, a left clamp 1, a clamp 3, a right clamp 4, a left connecting rod 5, an intermediate connecting rod 6, a right connecting rod 7, a hydraulic cylinder 9, a first pin shaft 12, The second pin shaft 15 and the limit plate 18, the clamp 3 is respectively installed on the left clamp 1 and the right clamp 4 through the clamp screw 2, and the lower ends of the left clamp 1 and the right clamp 4 are installed on the box Inside the body 10, the left clamp 1 and the right clamp 4 can slide freely in the box body 10; the limiting plate 18 is arranged on the side close to the left clamp 1 outside the box body 10, and the hydraulic cylinder 9 It is connected with the right clamp 4 in the box body 10, and the rod head of the hydraulic cylinder 9 passes through the inside of the left clamp 1 and the right clamp 4 in the box body 10 and is connected with the limit plate 18; the first pin shaft 12 Installed inside the left clamp 1 ...

Embodiment 2

[0027] Based on the above-mentioned embodiment 1, in this embodiment, the box body 10 is provided with a pressing plate 19, and the pressing plate 19 is installed on the box body 10 through the pressing plate screw 20, and the left clamp 1 and the right clamp are compressed. 4 the upper surface of the lower end.

[0028] The clamp 3 is a V-shaped clamp.

[0029] The V-shaped opening of the V-shaped clamp is an obtuse angle.

[0030] The clamp with the name of the method is a V-shaped clamp, which can clamp pipes with different diameters, and process a contact surface with corners on the chuck. The clamping force of the chuck is large and the range of pipe diameters that can be clamped is large. .

[0031] The limiting plate 18 is fixed on the left clamp 1 in the box body 10 by screws.

[0032] The intermediate connecting rod 6 is connected with the second pin shaft 15 through the third bushing 16 .

[0033] The hydraulic cylinder 9 is installed on the right clamp 4 through...

Embodiment 3

[0037] On the basis of Embodiment 1 or 2, a steel pipe clamping method is provided in this embodiment. The specific steps are: when the steel pipe does not reach the desired position, the hydraulic cylinder 9 is in an extended state, and at this time the left clamp 1 and The right clamp 4 is in the initial state, that is, the open position; when the steel pipe enters the required position, the hydraulic cylinder 9 shortens under the control of the power controller, driving the left clamp 1 and the right clamp 4 connected to it to move simultaneously, Drive the left connecting rod 5 and the right connecting rod 7 to move. Due to the limitation of the middle connecting rod 6, the left connecting rod 5 and the right connecting rod 7 can only be shortened at the same time, which achieves the effect of synchronous approach; finally, the clamp 3 clamps the steel pipe and ensures The steel pipe is in the center of the start.

[0038] When the present invention is working, when the st...

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PUM

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Abstract

The invention provides a steel pipe clamping device and method. The steel pipe clamping device comprises a box body, a left clamp, a clamp, a right clamp, a left connecting rod, a middle connecting rod, a right connecting rod, a hydraulic cylinder, a first pin shaft, a second pin shaft and a limiting plate; the clamp is installed on the left clamp and the right clamp through clamp screws, the lower ends of the left clamp and the right clamp are installed in the box body, and the left clamp and the right clamp can freely slide in the box body; the limiting plate is arranged on one side, close to the left clamp, of the box body, the hydraulic cylinder is connected to the part, located in the box body, of the right clamp, and a rod head of the hydraulic cylinder penetrates through the interior of the left clamp and the interior of the right clamp which are located in the box body to be connected to the limiting plate; and the first pin shaft is installed inside the left clamp and the right clamp through a first screw. According to the steel pipe clamping device and method, only one hydraulic cylinder is used for driving so that the clamp can synchronously move left and right, and finally a steel pipe is clamped to realize centering; and the structure of the system is greatly simplified, the manufacturing and maintenance are convenient, the noise is small, the structure is simple,and the cost is low.

Description

technical field [0001] The invention belongs to the field of steel pipe equipment, and in particular relates to a steel pipe clamping device and method. Background technique [0002] In recent years, with the development of the world economy, the demand for energy is increasing, and both at home and abroad are increasing efforts to exploit oil and natural gas; oil and gas pipelines are an economical, safe and uninterrupted long-distance transportation of oil and natural gas Tools are gaining popularity rapidly. Steel pipes require many processes in the manufacturing process, and each process requires a lot of equipment to complete. Among the many equipments, the steel pipe clamping device is the most commonly used. [0003] The traditional steel pipe clamping device has complex structure, high cost and troublesome maintenance, which causes great inconvenience to production and manufacturing. Contents of the invention [0004] In order to overcome the problems of existing...

Claims

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Application Information

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IPC IPC(8): B25B5/02B25B5/12
CPCB25B5/02B25B5/122
Inventor 马海宽谷瑞杰李培力寇永乐董珂
Owner CHINA NAT HEAVY MACHINERY RES INSTCO