CN202343781U - Tongs of steel pipe expanding-pulling all-in-one machine - Google Patents
Tongs of steel pipe expanding-pulling all-in-one machine Download PDFInfo
- Publication number
- CN202343781U CN202343781U CN2011204325521U CN201120432552U CN202343781U CN 202343781 U CN202343781 U CN 202343781U CN 2011204325521 U CN2011204325521 U CN 2011204325521U CN 201120432552 U CN201120432552 U CN 201120432552U CN 202343781 U CN202343781 U CN 202343781U
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- China
- Prior art keywords
- tongs
- grip finger
- drive rod
- clamp
- drive
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- Expired - Fee Related
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- Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
Abstract
The utility model relates to a pair of tongs of a steel pipe expanding-pulling all-in-one machine. The pair of tongs comprises a left tongs claw, a right tongs claw, a left drive rod, a right drive rod and a tongs oil cylinder, wherein the middle part of the left tongs claw is hinged with the middle part of the right tongs claw through a tongs pin shaft to form a scissors-type structure, one end of the left tongs claw and one end of the right tongs claw are respectively a clamping end, the other ends of the left and the right tongs claws are respectively a drive end, the drive ends are respectively hinged with one end of the left drive rod and one end of the right drive rod, the other ends of the left and the right drive rods are fixedly connected with a main piston rod connector after being hinged with each other through a drive rod pin shaft, and an oil cylinder body and an oil cylinder piston rod of the tongs oil cylinder are respectively connected onto the tongs pin shaft and the drive rod pin shaft. By adoption of the scissors-type structure, under the pulling of a main oil cylinder, the left and the right drive rods are pulled by a main piston rod of the main oil cylinder through the main piston rod connector, so that a pipe is further folded and clamped by the tongs; and as the pulling force is increased, the clamping force of the tongs on the pipe is larger, and the tongs realize self-locking, so that the problem that the tongs are loosened in the pipe pulling process is solved.
Description
Technical field
The utility model relates to the parts in the steel pipe processing equipment, specifically is that the all-in-one clamp is drawn in the steel pipe expansion.
Background technology
Clamp is that steel pipe expands and to draw one of critical piece indispensable in the all-in-one, and steel pipe expands the power that draws in the all-in-one and drives clamp pulling steel pipe or mould through drive mechanism, thus the expander of accomplishing steel pipe with subtract wall.Domestic other producer provides the fluid pressure type steel pipe to expand machine drawing at present, and its clamp partly adopts pure hydraulic pressure clamping steel pipe.Because hydraulic jack in use, has leakage, chucking power is difficult to keep, and, loosening through regular meeting at work along with the wearing and tearing of clamping head, cause falling pipe.
Summary of the invention
The purpose of the utility model is that a kind of rational in infrastructure, chucking power is lasting, the steel pipe of reliable operation expands the clamp that draws all-in-one for the deficiency that overcomes prior art provides.
In order to achieve the above object; The steel pipe expansion of the utility model draws the clamp of all-in-one to comprise left grip finger, right grip finger, left drive rod and right drive rod and clamp oil cylinder; The middle part of said left grip finger and right grip finger is through the scissor structure of the hinged formation of clamp bearing pin; One end of said left grip finger and right grip finger is a bare terminal end; The other end is a drive end; The drive end of said left grip finger and right grip finger is hinged with an end of left drive rod and right drive rod respectively, and the other end of said left drive rod and right drive rod is fixedly connected with the main piston rod joint after being hinged through the drive rod bearing pin, and the cylinder body of said clamp oil cylinder and oil cylinder piston bar are connected on clamp bearing pin and the drive rod bearing pin.Said left grip finger and right grip finger can be equipped with and the perpendicular line of rabbet joint of clamp bearing pin in drive end side; Make said left grip finger and right grip finger drive end side form by the part of two opposing parallel, said left grip finger drive end passes the other side's line of rabbet joint with one-sided mutual intersection of right grip finger drive end.Like this can be so that the stressed balanced and reasonable more of clamp, and clamp integral thickness size is less.
The utility model steel pipe expands the clamp that draws all-in-one owing to adopt scissor structure; And the cylinder body of clamp oil cylinder and oil cylinder piston bar are connected on clamp bearing pin and the drive rod bearing pin, therefore, when trombone slide, at first control the clamp oil cylinder and drive clamp easily and close up and clamp pipe; Under the pulling of master cylinder; Thereby the main piston rod of master cylinder spurs left drive rod and right drive rod through the main piston rod joint and clamp is further closed up clamp pipe, and along with pulling force increases, the power of clamp clamp is big more; Realize self-locking, solved the loosening problem of clamp in the trombone slide process; When trombone slide is accomplished, utilize the hydraulic oil cylinder driving on the clamp, make clamp unclamp steel pipe.
To combine accompanying drawing and specific embodiment that the utility model is done further explain below.
Description of drawings
Fig. 1 is the utility model specific embodiment structural representation;
Fig. 2 is the utility model grip finger specific embodiment structural representation.
The specific embodiment
As shown in Figure 1, steel pipe expands the clamp draw all-in-one and comprises left grip finger 1, right grip finger 2, left drive rod 3 and right drive rod 4 and clamp oil cylinder 5.Like Fig. 1, shown in 2; Left side grip finger 1 and right grip finger 2 shapes symmetry; Roughly be fan-shaped, a bigger end of said left grip finger 1 and right grip finger 2 is a bare terminal end, and the less other end is a drive end; Said left grip finger 1 and right grip finger 2 drive end side are equipped with the line of rabbet joint 7 perpendicular with clamp bearing pin 6; Make said left grip finger 1 and right grip finger 2 drive end side form by the part of two opposing parallel, said left grip finger 1 drive end passes the other side's line of rabbet joint 7 with one-sided mutual intersection of right grip finger 2 drive ends, and the middle part of said left grip finger 1 and right grip finger 2 is through the scissor structure of clamp bearing pin 6 hinged formations.The line of rabbet joint 7 is set and intersects the structural design of passing the other side's line of rabbet joint 7 each other, can be so that the stressed balanced and reasonable more of clamp, and clamp integral thickness size is less.Said left drive rod 3 is a flat-shaped with right drive rod 4; One end of left side drive rod 3 and right drive rod 4 is hinged with the drive end of said left grip finger 1 and right grip finger 2 respectively; The other end of said left drive rod 3 and right drive rod 4 is hinged through drive rod bearing pin 8; Above-mentioned drive rod bearing pin 8 and drive rod all should be parallel with clamp bearing pin 6 with the jointed shaft of drive end, and the cylinder body of said clamp oil cylinder 5 and oil cylinder piston bar are connected to the opening and closing that are used to drive clamp on clamp bearing pin 6 and the drive rod bearing pin 8.Said main piston rod joint 9 is provided with the connecting portion that a cross section becomes the U type, and the U type connecting portion of main piston rod joint is provided with pin-and-hole and matches with the hinged end of said left drive rod 3 and right drive rod 4, is fixedly connected with its formation.This clamp has rational in infrastructure, the characteristics of reliable operation.
Claims (2)
1. the all-in-one clamp is drawn in the steel pipe expansion; It is characterized in that: clamp comprises left grip finger, right grip finger, left drive rod and right drive rod and clamp oil cylinder; The middle part of said left grip finger and right grip finger is through the scissor structure of the hinged formation of clamp bearing pin; One end of said left grip finger and right grip finger is a bare terminal end; The other end is a drive end; The drive end of said left grip finger and right grip finger is hinged with an end of left drive rod and right drive rod respectively, and the other end of said left drive rod and right drive rod is fixedly connected with the main piston rod joint after being hinged through the drive rod bearing pin, and the cylinder body of said clamp oil cylinder and oil cylinder piston bar are connected on clamp bearing pin and the drive rod bearing pin.
2. the all-in-one clamp is drawn in steel pipe expansion according to claim 1; It is characterized in that: said left grip finger and right grip finger drive end side are equipped with and the perpendicular line of rabbet joint of clamp bearing pin; Make said left grip finger and right grip finger drive end side form by the part of two opposing parallel, said left grip finger drive end passes the other side's line of rabbet joint with one-sided mutual intersection of right grip finger drive end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204325521U CN202343781U (en) | 2011-11-04 | 2011-11-04 | Tongs of steel pipe expanding-pulling all-in-one machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204325521U CN202343781U (en) | 2011-11-04 | 2011-11-04 | Tongs of steel pipe expanding-pulling all-in-one machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202343781U true CN202343781U (en) | 2012-07-25 |
Family
ID=46532808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204325521U Expired - Fee Related CN202343781U (en) | 2011-11-04 | 2011-11-04 | Tongs of steel pipe expanding-pulling all-in-one machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202343781U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107020305A (en) * | 2017-06-15 | 2017-08-08 | 江苏瑞吉达建材科技有限公司 | A kind of rotatable hydraulic pressure feeding clip mechanism with self-locking |
| CN107081366A (en) * | 2017-06-15 | 2017-08-22 | 江苏瑞吉达建材科技有限公司 | Many Qulas stretch control system |
| CN107214222A (en) * | 2017-06-15 | 2017-09-29 | 江苏瑞吉达建材科技有限公司 | Many song contour machining equipments |
| CN108637117A (en) * | 2018-05-31 | 2018-10-12 | 华北水利水电大学 | Pipe end clamping device and clamping means under a kind of non-contraction tube expanding machine U-tube |
| CN108655286A (en) * | 2018-05-31 | 2018-10-16 | 华北水利水电大学 | A kind of electric tube expander inner bearing type upper and lower side combination clamping device and clamping means |
| CN108723218A (en) * | 2018-05-31 | 2018-11-02 | 华北水利水电大学 | A kind of electric tube expander upper end plug-in type combination clamping device |
| CN109092946A (en) * | 2018-08-06 | 2018-12-28 | 安徽双兴机械有限公司 | Fluid pressure line bending equipment on a kind of fork truck |
-
2011
- 2011-11-04 CN CN2011204325521U patent/CN202343781U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107020305A (en) * | 2017-06-15 | 2017-08-08 | 江苏瑞吉达建材科技有限公司 | A kind of rotatable hydraulic pressure feeding clip mechanism with self-locking |
| CN107081366A (en) * | 2017-06-15 | 2017-08-22 | 江苏瑞吉达建材科技有限公司 | Many Qulas stretch control system |
| CN107214222A (en) * | 2017-06-15 | 2017-09-29 | 江苏瑞吉达建材科技有限公司 | Many song contour machining equipments |
| CN108637117A (en) * | 2018-05-31 | 2018-10-12 | 华北水利水电大学 | Pipe end clamping device and clamping means under a kind of non-contraction tube expanding machine U-tube |
| CN108655286A (en) * | 2018-05-31 | 2018-10-16 | 华北水利水电大学 | A kind of electric tube expander inner bearing type upper and lower side combination clamping device and clamping means |
| CN108723218A (en) * | 2018-05-31 | 2018-11-02 | 华北水利水电大学 | A kind of electric tube expander upper end plug-in type combination clamping device |
| CN108655286B (en) * | 2018-05-31 | 2021-02-02 | 华北水利水电大学 | Internal-support type upper end and lower end combined clamping device and clamping method for tube expander |
| CN109092946A (en) * | 2018-08-06 | 2018-12-28 | 安徽双兴机械有限公司 | Fluid pressure line bending equipment on a kind of fork truck |
| CN109092946B (en) * | 2018-08-06 | 2020-06-16 | 安徽双兴机械有限公司 | Hydraulic pipeline bending equipment on forklift |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20121104 |