CN202367090U

CN202367090U - Steering drag link pipe reducing machine

Info

Publication number: CN202367090U
Application number: CN201120519137XU
Authority: CN
Inventors: 王博文; 杨秀强; 谢毅
Original assignee: HUBEI WANLIANDA AUTO PARTS CO Ltd
Current assignee: HUBEI WANLIANDA AUTO PARTS CO Ltd
Priority date: 2011-12-13
Filing date: 2011-12-13
Publication date: 2012-08-08
Anticipated expiration: 2021-12-13

Abstract

The utility model relates to a steering drag link pipe reducing machine, which comprises an operation table, a pair of clamping fixing mechanisms arranged on two sides of the operation table symmetrically side by side and a pipe reducing mechanism. Each clamping fixing mechanism comprises an upper clamping die, a lower clamping die and a clamping hydraulic cylinder. The pipe reducing mechanism comprises a pipe reducing die, a pipe reducing die guiding base and a compressing hydraulic cylinder. The pipe reducing die comprises a pipe reducing die base and a pipe reducing die core. The pipe reducing die core is distributed on the pipe reducing die base symmetrically to form a conical die port. By means of conical matching between an inner wall of a conical working hole in the die base and a pipe outer wall, time and labor are saved, a drag link body pipe reducing portion is even in wall thickness, wall thickness of a transition portion is increased, the strength is improved, and extension is high.

Description

The steering drag link machine for shrinking

Technical field

The utility model belongs to the pipe fitting technical field of processing equipment, relates to a kind of steering drag link machine for shrinking.

Background technology

As everyone knows, be used for the pipe fitting of the pipeline of equipment such as automobile, air-conditioning, its pipe end all to through rising the pipe or draw operation form.In draw operation, the clamping device (usually said clamping) through the clamping pipe cooperatively interacts with pipe-reduction mold, and required form is processed in the end of pipe.A kind of pipe-reduction mold commonly used; Comprise: die holder be arranged on the draw mould in the die holder; The course of work of this pipe-reduction mold is: at first will need pipe fitting processed to be clamped in the clamping, and on die holder, apply an axial thrust then, this thrust is directly delivered on the draw mould; Make the outer wall of draw mould and pipe fitting constantly push, at last required shape is processed in the end of pipe fitting.With this pipe-reduction mold pipe end is carried out existing when the draw is shaped following shortcoming:

1, needs enough big axial thrust just can overcome the draw mould resistance in the process that moves ahead, make that draw mould fltting speed is slow, reduced the efficient of the draw;

2, in the progradation of draw mould, the resistance that draw mould receives advances the increase of the degree of depth along with it and increases progressively, and has so just determined above-mentioned draw mould unsuitable long, and in order to ensure the shaping length of pipe end, the ductility that just must reduce pipe end is the degree of shrinkage of pipe end; For some pipe ends that needs higher ductility, will pass through the secondary draw could be shaped; And the secondary draw just needs to change draw mould, reorientate, this but can cause the further decline of draw efficient, but also can have influence on the axiality behind the draw.

And, consider that its suffered load is bigger for the Drag link pull bar body that medium and heavy car, mine car assembled, Drag link pull bar body should be used the body of rod of overstriking.So body of rod two ends will machine or forge carefully in process, but in actual process, defective can occur.For example: can significantly descend in the intensity of intermediate location material behind the turning, it is even that heat is forged in the process body of rod material walls thickness ununiformity, and relatively poor, the other heat of the circularity of cylindrical is forged and is equivalent to material has been carried out annealing in process, causes intensity to reduce.

But the draw method of existing pipe fitting machine for shrinking can not satisfy the requirements such as intensity of steering drag link pull bar body again, because will realize such pipe fitting processed in batch, just needing special equipment could realize again.

The existence of above-mentioned defective is necessary existing machine for shrinking further perfect.

Summary of the invention

The defective that the utility model requires for the intensity etc. that solves existing machine for shrinking draw method and can't reach the pull bar body of steering drag link, and provide a kind of and laborsavingly save time, ductility is high, intensity is good steering drag link machine for shrinking.

The utility model is realized through following scheme:

Above-mentioned steering drag link machine for shrinking, its said machine for shrinking comprise operating desk, reach a pair of clamping and fixing body and draw mechanism that the operating desk bilateral symmetry is arranged side by side;

Said clamping and fixing body comprises upper clamp formwork, lower clamp formwork and clamping hydraulic cylinder; Said draw mechanism comprises draw mould, draw mould guide holder and compression hydraulic cylinder;

Said draw mould comprises draw die holder and draw core rod, and said draw core rod symmetry is laid in said draw die holder, forms to be roughly tapered mould mouth.

Said operating desk comprises working face and base, and said working face is provided with two and above pilot hole, also is arranged with a pair of reference column.

Said upper clamp formwork is installed in the reference column on the operating desk, comprises upper surface and lower surface, and said upper surface is provided with a pair of alignment pin that runs through, is used to connect four screwed holes of patrix and reference column, and the lower surface is provided with work nest vertically; Said lower clamp formwork is fixedly mounted on the operating desk working face, comprises upper surface, side and lower surface, and a pair of alignment pin is laid in upper surface radially center line symmetry, is complementary with set a pair of alignment pin on the upper clamp formwork, makes that upward lower clamp formwork is coaxial; Center line also is provided with the work nest that is complementary with pipe fitting vertically, and the two sides symmetry is laid two pairs of locating pieces, and the middle part, lower surface is provided with fitting recess.

Said clamping hydraulic cylinder is assemblied in the reference column on the operating desk, is connected in the top of upper clamp formwork; Said compression hydraulic cylinder is assemblied on the operating desk working face; Said draw mould guide holder is provided with the working hole that axially runs through, and is connected with draw mould through this working hole compression hydraulic cylinder.

Said machine for shrinking can be respectively formed the clamping and fixing body and the draw mechanism of the pipe fitting two-port draw by two groups, and two groups clamping and fixing body and draw mechanism symmetry are laid in the operating desk both sides side by side.

Beneficial effect:

The utility model is through the inwall in taper work hole in the die holder and the cone match between the pipe fitting outer wall; Make the major part that is applied to the axial thrust on the shaft shoulder all change into the convergent force that draw body is inside; Because draw axon is more many greatly than the distance that draw body radially inwardly shrinks to the distance of advancing; Thereby can save many power, so just can improve the fltting speed of draw mould, reduce the draw time; Drag link pull bar body draw position wall thickness is even, the transition portion wall thickness increases, and the operation of turning is strengthened, reduced to intensity, obtained good economic benefit.

Description of drawings

Fig. 1 is a kind of steering drag link machine for shrinking of the utility model structural representation;

Fig. 2 is a kind of steering drag link machine for shrinking of the utility model clamping die front view;

Fig. 3 is a kind of steering drag link machine for shrinking of the utility model clamping die vertical view;

Fig. 4 is a kind of steering drag link machine for shrinking of the utility model clamping die left view;

Fig. 5 is a kind of steering drag link machine for shrinking of the utility model upper clamp formwork front view;

Fig. 6 is a kind of steering drag link machine for shrinking of the utility model upper clamp formwork vertical view;

Fig. 7 is a kind of steering drag link machine for shrinking of the utility model upper clamp formwork left view;

Fig. 8 is a kind of steering drag link machine for shrinking of the utility model lower clamp formwork front view;

Fig. 9 is a kind of steering drag link machine for shrinking of the utility model lower clamp formwork vertical view;

Figure 10 is a kind of steering drag link machine for shrinking of the utility model lower clamp formwork left view;

Figure 11 is a kind of steering drag link machine for shrinking of the utility model draw mode structure sketch map;

Figure 12 is a kind of steering drag link machine for shrinking of the utility model draw mould mould mouth sketch map;

Figure 13 is the sketch map after a kind of steering drag link machine for shrinking of the utility model draw is molded into pipe fitting;

Figure 14 is that a kind of steering drag link machine for shrinking of the utility model pipe fitting port shrinks the back sketch map.

The specific embodiment

To shown in Figure 14, the steering drag link machine for shrinking of the utility model comprises a pair of clamping and fixing body 2 and draw mechanism 3 that operating desk l, operating desk 1 bilateral symmetry are arranged side by side like Fig. 1.

Operating desk 1 is roughly rectangular structure, comprises working face and is used for fixing the base that this machine for shrinking is installed, and working face is provided with a plurality of pilot holes, also is arranged with a pair of reference column vertically.

The structure of clamping and fixing body 2 is symmetrical, comprises upper clamp formwork 21, lower clamp formwork 22 and clamping hydraulic cylinder 23;

Upper clamp formwork 21 is installed in the reference column on the operating desk 1, is driven by clamping hydraulic cylinder 23, comprises upper surface and lower surface; The upper surface radially is arranged with a pair of alignment pin that runs through 211, through hole 211 bilateral symmetry are laid four screwed holes 212 that are used to connect patrix and reference column, and the lower surface is provided with the work nest 215 that is complementary with pipe fitting 4 vertically;

Lower clamp formwork 22 is fixedly mounted on operating desk 1 working face, comprises upper surface, side and lower surface, and a pair of alignment pin 221 is laid in upper surface radially center line symmetry, is complementary with set a pair of working hole 211 on the upper clamp formwork 21, makes that upward lower clamp formwork is coaxial; Center line is provided with the work nest 222 that is complementary with pipe fitting 4 vertically, and the two sides symmetry is laid two pairs of locating pieces 223, and the middle part, lower surface is provided with fitting recess 224.

Clamping hydraulic cylinder 23 is assemblied in the reference column on the operating desk 1, is connected in the top of upper clamp formwork 21, is used to drive the radial motion of upper clamp formwork 21.

The structure of draw mechanism 3 is symmetrical, comprises draw mould 31, draw mould guide holder 32 and compression hydraulic cylinder 33;

Draw mould 31 is assemblied in the draw mould guide holder 32, comprises draw die holder 311 and draw core rod 312; This draw die holder 311 is assemblied in the draw mould guide holder 32, for symmetry lay a pair of; These draw core rod 312 symmetries are laid in this draw die holder 311, through screw tension, and form one and are roughly tapered mould mouth after both interference fit, have the effect that can be placed in and tighten up pipe fitting 4 ports;

Draw mould guide holder 32 is provided with the working hole that axially runs through, and is connected with draw mould 31 through this working hole compression hydraulic cylinder 33;

Compression hydraulic cylinder 33 is assemblied on operating desk 1 working face, and compression hydraulic cylinder 33 drives draw mould 31 motion vertically through working hole in the draw guide holder 32.

One of embodiment is used for the pipe fitting single head draw, and this machine for shrinking is formed with draw mechanism 3 by being positioned at one group of clamping and fixing body 2 that operating desk l bilateral symmetry is arranged side by side.

The structure of draw mechanism 3 is symmetrical, comprises draw mould 31, slip holder 32 and compression hydraulic cylinder 33; Draw mould 31 has the trumpet type mould mouth that can be placed in and tighten up pipe fitting 4 ports, and trumpet type mould mouth on the adjustment draw mould just realizes that pipe fitting shrinks size.

Two of embodiment is used for the pipe fitting double end draw, and this machine for shrinking can be formed with draw mechanism 3 clamping and fixing body 2 of the pipe fitting two-port draw respectively by two groups, and two groups clamping and fixing body and draw mechanism symmetry are laid in operating desk 1 both sides side by side.

Job step:

1, lower clamp formwork and draw mould on the adjustment draw make lower clamp formwork concentric with draw mould.

2, pipe fitting is placed on startup clamping hydraulic cylinder clamping work pieces on the clamping die.

3, start draw hydraulic cylinder promotion draw mould and carry out the draw.

4, return draw hydraulic cylinder after the draw finishes earlier, step up hydraulic cylinder returning, take off pipe fitting.

The utility model is through the inwall of taper die mouth in the die holder and the cone match between the pipe fitting outer wall; Make the major part that is applied to the axial thrust on the shaft shoulder all change into the convergent force that draw body is inside; Because draw axon is more many greatly than the distance that draw body radially inwardly shrinks to the distance of advancing; Thereby can save many power, so just can improve the fltting speed of draw mould, reduce the draw time; Drag link pull bar body draw position wall thickness is even, the transition portion wall thickness increases, and the operation of turning is strengthened, reduced to intensity, obtained good economic benefit.

Claims

1. steering drag link machine for shrinking is characterized in that: said machine for shrinking comprises operating desk, and operating desk the bilateral symmetry a pair of clamping and fixing body and the draw mechanism that are arranged side by side;

2. a kind of steering drag link machine for shrinking as claimed in claim 1, it is characterized in that: said operating desk comprises working face and base, said working face is provided with two and above pilot hole, also is arranged with a pair of reference column.

3. a kind of steering drag link machine for shrinking as claimed in claim 1; It is characterized in that: said upper clamp formwork is installed in the reference column on the operating desk; Comprise upper surface and lower surface; Said upper surface is provided with a pair of alignment pin that runs through, is used to connect four screwed holes of patrix and reference column, and the lower surface is provided with work nest vertically;

Said lower clamp formwork is fixedly mounted on the operating desk working face, comprises upper surface, side and lower surface, and a pair of alignment pin is laid in upper surface radially center line symmetry, is complementary with set a pair of alignment pin on the upper clamp formwork, makes that upward lower clamp formwork is coaxial; Center line also is provided with the work nest that is complementary with pipe fitting vertically, and the two sides symmetry is laid two pairs of locating pieces, and the middle part, lower surface is provided with fitting recess.

4. a kind of steering drag link machine for shrinking as claimed in claim 1 is characterized in that: said clamping hydraulic cylinder is assemblied in the reference column on the operating desk, is connected in the top of upper clamp formwork; Said compression hydraulic cylinder is assemblied on the operating desk working face; Said draw mould guide holder is provided with the working hole that axially runs through, and is connected with draw mould through this working hole compression hydraulic cylinder.

5. a kind of steering drag link machine for shrinking as claimed in claim 1; It is characterized in that: said machine for shrinking can be respectively formed the clamping and fixing body and the draw mechanism of the pipe fitting two-port draw by two groups, and two groups clamping and fixing body and draw mechanism symmetry are laid in the operating desk both sides side by side.