CN202114167U

CN202114167U - Tube stretching fixture

Info

Publication number: CN202114167U
Application number: CN2011202095099U
Authority: CN
Inventors: 张万福
Original assignee: 张万福
Current assignee: Jiangsu Benyu Automobile Body Production Co., Ltd.
Priority date: 2011-06-21
Filing date: 2011-06-21
Publication date: 2012-01-18
Anticipated expiration: 2021-06-21

Abstract

A tube stretching fixture relates to the technical field of manufacturing of fixtures and comprises a cylindrical stretch bar, at least two locking blocks are disposed around a locking end of the stretch bar, the locking end of the stretch bar is conical, a retaining block is disposed on the stretch bar in front of the locking blocks, a step is disposed on the stretch bar in front of the retaining block, a spring is disposed between the step and the retaining block and sleeved on the stretch bar, and the two ends of the spring are abutted to the step and the retaining block respectively. The tube stretching fixture is effective in locking, simple in structure, convenient in use and easy in production and manufacture.

Description

A kind of drawing pipe anchor clamps

Technical field

The utility model relates to a kind of manufacturing technology field of anchor clamps.

Background technology

Irregular pipe is when being shaped; The end of tubing need be fixed, and need provide one to draw high power to the tubing top, could guarantee so fold can not occur on the tubing body surface; Therefore the top that needs a kind of anchor clamps can clamp tubing, and not landing under certain pulling force.

Summary of the invention

The utility model provides a kind of drawing pipe anchor clamps, the qualification rate when purpose is to improve tube forming.

The utility model comprises the cylindricality pull bar; At at least two latch segments of periphery setting of said pull bar locking end, the locking end of said pull bar is taper, on the pull bar of the place ahead of said latch segment, block is set; On the pull bar in said block the place ahead, step is set; Between said step and block, spring is set, said spring is nested with on said pull bar, conflicts respectively on said step and block in the two ends of said spring.

When the utility model uses, earlier latch segment is arranged in the top of tubing, through the pulling of taper pull bar; Latch segment is expanded the purpose that reaches locking, after the locking, continue the pulling force that keeps certain; Fold appears in the surface in the time of can avoiding tube forming like this, has improved the qualification rate of product; These anchor clamps cooperate through block and spring, give latch segment a conflict power, make latch segment separately, fit between latch segment and the pipe fitting, locking, and this anchor clamps locking effect is good, simple in structure, easy to use, and it is easy to manufacture.

The utility model is hinged the first in command, the second in command respectively at the left and right side of said step; Between the said first in command and block, first connecting rod is set; One end commissure of said first connecting rod is connected on the said first in command's bottom; The other end of said first connecting rod is hinged and connected to the front side of said block; Between the said second in command and block, second connecting rod is set, an end of said second connecting rod is hinged and connected to the said second in command's bottom, and the other end of said second connecting rod is hinged and connected to the rear side of said block; The holding rod of horizontal arrangement is set between the said first in command and the second in command, and the two ends of said holding rod are connected to the said first in command and the second in command's free end.

The utility model is hinged handle on step, handle is connected with block through connecting rod, and between connecting rod and handle, the block for being hinged, it is for the elastic force that overcomes spring spurs block forward that this linkage is set, and makes things convenient for latch segment to unclamp from pipe fitting; The pulling of block is through depression of handle forward because the mechanism of connecting rod, when handle pressed be lower than pull bar after, handle is limited, can be not automatically can bullet; When processing pipe fitting once more, only need manually handle to be mentioned to be higher than pull bar, because the effect of spring, block resilience, the latch segment top of conflicting.

Description of drawings

Fig. 1 is a kind of structural representation of the utility model;

Fig. 2 is the vertical view of Fig. 1.

Among the figure, 1, pull bar, 2, latch segment, 3, block, 4, step, 5, spring, 6, the first in command, 7, the second in command, 8, first connecting rod, 9, second connecting rod, 10, holding rod.

The specific embodiment

Like Fig. 1, shown in 2, this drawing pipe anchor clamps comprise cylindricality pull bar 1, at least two latch segments of periphery setting 2 of pull bar 1 locking end; The locking end of pull bar 1 is taper, on the pull bar of the place ahead of latch segment 2, block 3 is set, block 3 slideable being nested with on pull bar 1; Step 4 is set on the pull bar in block 3 the place aheads; Between step 4 and block 3, spring 5 is set, spring 5 is nested with on pull bar 1, conflicts respectively on step 4 and block 3 in the two ends of spring 5.

Like Fig. 1, shown in 2, this drawing pipe anchor clamps are hinged the first in command 6, the second in command 7 respectively at the left and right side of step 4; Between the first in command 6 and block 3, first connecting rod 8 is set; One end commissure of first connecting rod 8 is connected on the first in command 6 bottom, and the other end of first connecting rod 8 is hinged and connected to the left side of block 3, between the second in command 7 and block 3, second connecting rod 9 is set; One end of second connecting rod 9 is hinged and connected to the second in command 7 bottom; The other end of second connecting rod 9 is hinged and connected to the right side of block 3, and the holding rod 10 of horizontal arrangement is set between the first in command 6 and the second in command 7, and the two ends of holding rod 10 are connected to the first in command 6 and the second in command's 7 free end.

Claims

1. drawing pipe anchor clamps is characterized in that comprising the cylindricality pull bar, at least two latch segments of periphery setting of said pull bar locking end; The locking end of said pull bar is taper, on the pull bar of the place ahead of said latch segment, block is set, and said block is slideable to be nested with on said pull bar; On the pull bar in said block the place ahead, step is set; Between said step and block, spring is set, said spring is nested with on said pull bar, conflicts respectively on said step and block in the two ends of said spring.

2. a kind of drawing pipe anchor clamps according to claim 1; It is characterized in that being hinged the first in command, the second in command respectively at the left and right side of said step; Between the said first in command and block, first connecting rod is set; One end commissure of said first connecting rod is connected on the said first in command's bottom, and the other end of said first connecting rod is hinged and connected to the front side of said block, between the said second in command and block, second connecting rod is set; One end of said second connecting rod is hinged and connected to the said second in command's bottom; The other end of said second connecting rod is hinged and connected to the rear side of said block, and the holding rod of horizontal arrangement is set between the said first in command and the second in command, and the two ends of said holding rod are connected to the said first in command and the second in command's free end.