CN201625671U - Draw carriage reciprocating mechanism of drawbench - Google Patents
Draw carriage reciprocating mechanism of drawbench Download PDFInfo
- Publication number
- CN201625671U CN201625671U CN2010201185074U CN201020118507U CN201625671U CN 201625671 U CN201625671 U CN 201625671U CN 2010201185074 U CN2010201185074 U CN 2010201185074U CN 201020118507 U CN201020118507 U CN 201020118507U CN 201625671 U CN201625671 U CN 201625671U
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- dolly
- spring
- draw
- reciprocating mechanism
- support column
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Abstract
The utility model discloses a draw carriage reciprocating mechanism of a drawbench, which comprises a transmission shaft and front and rear draw carriages. The transmission shaft driven by a main transmission device is disposed in a machine base, the front and rear draw carriages are arranged on tracks of the upper surface of the machine base, and screw post type double-surfaced cams with completely identical front and rear sides and phase difference of 180 degrees are respectively mounted on the transmission shaft below the draw carriages, and fixed rollers and movable rollers cling to two sides of each of working curved surfaces of the double-surfaced cams when the double-surfaced cams rotate. The draw carriage reciprocating mechanism is characterized in that as a pressing device adopts an adjustable elastic mechanism, the draw carriage reciprocating mechanism is more reasonable and practical in structure, makes good use of advantages of the elastic mechanism, overcomes shortages of lag and poor synchronism and can realize that the draw carriages can mutually alternatively clamp tubes to operate synchronously without pressure and hydraulic systems.
Description
Technical field
The utility model relates to a kind of metal-working plant, particularly a kind of drawing dolly reciprocator that is used for the processing of metal copper pipe bar.
Background technology
The drawbench that now is used for processing metal pipe bar, the folding of usually adopting two drawing dollies in same horizontal plane setting to move back and forth and control simultaneously drawing dolly upper jaw realizes the pipe bar is implemented clamping, stretches and sent to.In the prior art, the folding of control drawing dolly jaw mainly contains two kinds of devices, and the one, adopt pneumatic control; The 2nd, hydraulic control system.Above-mentioned two kinds of control device are all being deposited defective, and the former is the synchronism that influences mutual coordination between the drawing dolly because of the gas decrement greatly, and its result causes processing the quality problems of tubing; Latter's hydraulic control system comprises the hydraulic circuit that Hydraulic Station, pressure regulating cylinder, jaw work oil and some hydraulic valve pieces are formed, utilize radial cams and plunger hydraulic oil cylinder to organically combine, guarantee the accuracy in jaw folding cycle, and the jaw folding has action fast, synchronously when the dolly reciprocating frequency is too high.
China Patent No. 200420095896.8 disclosed a kind of control device that are used for drawbench two drawing dolly jaw foldings, adopted exactly at each jaw that can when each drawing dolly is reciprocating, make that drives by radial cams that is provided with between jaw open-and-close mechanism and the radial cams and be the alternately hydraulic control system of folding, its greatest problem is the following aspects: the one, and phenomenons such as the pipeline that dolly is furnished with backhaul back pressure hydraulic cylinder stops up easily, leakage of oil, cause hydraulic oil loss, power consumption big, influence environment; The 2nd, skidding appears in jaw easily, causes the fracture of processing metal pipe bar; The 3rd, balance hydraulic cylinder failure-frequency height, maintenance difficulty is big, the cost height., jaw folding control structure is adjusted for this reason, enhanced productivity.
China Patent No. is that 200420095812.0 Chinese patent has also been introduced elastic mechanism in the background technology again, but because its elastic mechanism is too simple, only adopt pin and spring, so, fail to give full play of the advantage of elastic mechanism, life period lags behind, and the poor synchronization defective requires further improvement design.
The utility model content
Technical problem to be solved in the utility model provides the reciprocating mechanism of dialling dolly that draws on the more reasonable and practical a kind of drawbench of a kind of structure, it gives full play to the advantage of elastic mechanism, to overcome the defective of hysteresis and poor synchronization, can realize drawing dialling dolly alternately clamping tubing synchronous operation mutually, need not air pressure and hydraulic system.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: the reciprocating mechanism that draws group dolly on a kind of drawbench, it comprises power transmission shaft that is arranged on main drive driving in the support and the front and back drawing dolly that is arranged at the frame upper surface track, the spiral pillar double-track cam of power transmission shaft 180 ° of identical and phase phasic differences before and after being equipped with respectively below each drawing dolly, fixed idler whell and action roller are close to the both sides of double-track cam working curved surface when double-track cam rotates, wherein fixed idler whell is arranged on rotationally to draw and dials below the dolly, and action roller is arranged on the gusset piece of action roller rotationally, and gusset piece is hinged on rotationally to draw and dials below the dolly, gusset piece and draw to dial between the dolly bottom and be provided with the hold down gag that makes action roller be close to the double-track cam working curved surface all the time is characterized in that described hold down gag is to adopt adjustable elastic mechanism.
As improvement, described adjustable elastic mechanism is that piston body is to be installed in mechanism's pedestal with seesawing, one end of piston body is provided with cuts somebody's hair, cut somebody's hair and under the elastic force of spring, conflict all the time with the gusset piece of action roller, one end of one end socket, first spring of piston body, the other end of first spring is supported on the spring base Intermediate gasket, and spring base and mechanism's pedestal are fixed, other has adjusting screw(rod) to pass in the screwed hole of spring base, and withstands on the pad.
Preferably, described first spring outer diameter D=30mm～45mm, line footpath d=3.0mm～3.5mm, middle footpath D1=26.5mm～42mm, number of total coils N=7～8, number of active coils N c=5～6, material G=stainless steel wire, the elastic force scope of its spring is K=0.7945kgf/mm～1.4716kgf/mm.
Other has left and right sides control panel is on the clamp base rear end that is arranged in the drawing dolly, is plug-in type between the control panel, can move freely, and the clamp seat is scalariform;
Improve, the adjustable and balancing device is arranged at a side of drawing dolly again, and the support column by control panel links with it, is with balancing spring on the support column.The elastic force of balancing spring moves left and right sides control panel, thus control jaw clamp position.
Described adjustable bascule is included in and draws the balance pedestal that is provided with above of dialling dolly, have internal thread in the balance pedestal, adjusting rod system external screw thread, adjusting rod is threaded in the balance pedestal, support column one end is through in the balance pedestal, and the support column other end is supported and fixed on the control panel by rubber blanket, the balancing spring on the support column, the inner end is supported on the end face of adjusting rod, and the outer end is supported on the support column outer end.
As preferably, described balancing spring outer diameter D=25mm～30mm, line footpath d=1.8mm～2.2mm, middle footpath D1=22.8mm～28.2mm, number of total coils N=10～12, number of active coils N c=8～10, material G=stainless steel wire, the elastic force scope of its spring is K=0.09kgf/mm～0.18kgf/mm.
At last, described support column is to peg graft to cooperate with the adjusting rod endoporus, movably.
Compared with prior art, advantage of the present utility model is: adopt on the action roller gusset piece and on two drawing dolly bascules on the support adjusting screw(rod), spring are being set simultaneously, adopt adjustable elastic mechanism, first can save the use of hydraulic system, cut down the consumption of energy greatly, improve environment; Second utilizes the set elastic force of spring and the modulability that is threaded to eliminate cushion effect hysteresis slow in reacting in the quick reciprocating motion of dolly, improves the stability of work; The 3rd has significantly reduced vibrations and the noise that the drawing dolly produces by rubber when moving back and forth; Overall structure is more reasonable and practical, traditional shortcoming before overcoming.
Description of drawings
Fig. 1 is a structure cutaway view of the present utility model;
Fig. 2 is a structure vertical view of the present utility model;
Fig. 3 is that A-A of the present utility model is to cutaway view Amplified image;
Fig. 4 is that B-B of the present utility model is to cutaway view;
Fig. 5 is that C-C of the present utility model is to cutaway view Amplified image;
The specific embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
Shown in Fig. 1-5: the reciprocating mechanism that draws group dolly on a kind of drawbench, it includes support 1, power transmission shaft 3 and main drive 2 are installed in the support 1, main drive 2 adopts motor, motor presents to drive by gear 4 and power transmission shaft 3 and is connected, preceding drawing dolly 5 and back drawing dolly 6 are to be assemblied in slippingly on the track of support 1 upper surface front and back, before power transmission shaft 3 is equipped with respectively below each drawing dolly, the spiral pillar double-track cam that the identical and phase phasic difference in back is 180 °, they are respectively preceding double-track cam 7 and back double-track cam 8, near each double-track cam, be separately installed with fixed idler whell 9 and action roller 10, fixed idler whell 9 and action roller 10 are close to the both sides of double-track cam working curved surface when double-track cam rotates, wherein fixed idler whell 9 is installed in the pedestal 12 of fixed idler whell by bearing 11, and pedestal 12 lower ends of fixed idler whell are screwed upper support lid 13, thereby fixed idler whell 9 is arranged on rotationally draw dial dolly below, action roller 10 also is to be arranged on rotationally on the gusset piece 14 of action roller, and the gusset piece 14 of action roller is hinged on rotationally by jointed shaft 15 to draw and dials below the dolly, can overlap upper sliding sleeve 16 on the jointed shaft 15, the gusset piece 14 of action roller and draw to dial and be provided with the hold down gags that make the action roller beginning 14 be close to the double-track cam working curved surface eventually between the dolly bottom, crucial part of the present utility model is that hold down gag is to adopt adjustable elastic mechanism 100, concrete elastic mechanism includes mechanism's pedestal 17, piston body 18, first spring 19, spring base 23, adjusting screw(rod) 21 critical pieces such as grade, piston body 18 is to be installed in mechanism's pedestal 17 with seesawing, one end of piston body 18 is provided with cuts somebody's hair 22, cut somebody's hair and 22 under the elastic force of spring, conflict all the time with the gusset piece 14 of action roller, one end of one end socket, first spring 19 of piston body 18, the other end of first spring 19 is supported on the pad 20 in the spring base 23, spring base 23 and mechanism's pedestal 17 are screwed, and piston body 18 adopts the inside and outside piston structure of socket, other has adjusting screw(rod) 21 to pass in the screwed hole of spring base 23, and withstand on the pad 20, like this by adjusting screw(rod) 21 can regulating spring elastic force, thereby make elastic mechanism can obtain the purpose of adjusting power size.
Certain adjustable elastic mechanism also can adopt spring base directly to be threaded in mechanism pedestal rear portion, omits adjusting screw(rod), also can obtain similar effect.
Preferably, first spring, 19 outer diameter D=30mm～45mm, line footpath d=3.0mm～3.5mm, middle footpath D1=26.5mm～42mm, number of total coils N=7～8, number of active coils N c=5～6, material G=stainless steel wire, the elastic force scope of its spring is K=0.7945kgf/mm～1.4716kgf/mm, to obtain lasting elasticity strength.
Usually, left and right control panel 6a, 6b on the forward and backward drawing dolly clamp seat 300 utilize adjustable bascule 200 to control, have left and right control panel 6a, 6b on the clamp seat 300 of forward and backward exactly drawing dolly 5,6, described left and right control panel 6a, 6b are on clamp seat 300 rear ends that are arranged in the drawing dolly, between left and right control panel 6a, the 6b is plug-in type, can freely swing, clamp seat 300 is scalariform;
Adjustable and balancing device 200 is arranged at a side of forward and backward drawing dolly 5,6, support column 26 by control panel links with it, be with balancing spring 27 on the support column 26, the elastic force of balancing spring 27 moves left and right control panel 6a, 6b, thus control jaw clamp position.
Preferably, balancing spring 27 outer diameter D=25mm～30mm, line footpath d=1.8mm～2.2mm, middle footpath D1=22.8mm～28.2mm, number of total coils N=10～12, number of active coils N c=8～10, material G=stainless steel wire, the elastic force scope of its spring is K=0.09kgf/mm～0.18kgf/mm, to obtain lasting elasticity strength.
Its operation principle is: drive the power transmission shaft rotation by the main drive in the support, the spiral pillar double-track cam of 180 ° of two identical and phase phasic differences is housed respectively corresponding to the power transmission shaft of drawing dolly below, all the time fixed idler whell and the action roller of being close to cam work curved surface both sides during the double-track cam rotation, so before draw when dialling dolly and slide backward, and post-tensioning to dial dolly be to front slide.
Simultaneously, control moving of left and right sides control panel on the dolly clamp seat by the elasticity of adjustable and balancing device.Because the clamp seat is scalariform, under the situation of spring compression, jaw is held tightly, the moment jaw that spring flicks unclamps, the clamp of drawing dolly is finished held, unclamp tightly action, thereby the jaw that draws group dolly and post-tensioning to dial on the dolly before making is finished the action that the pipe bar is implemented clamping, stretched and send to successively, particularly hold down gag is to adopt adjustable elastic mechanism, elasticity strength that can regulating spring, fully overcome the problem that spring lags behind and synchronism descends, make entire mechanism more reasonable and practical.
Claims (7)
1. draw the reciprocating mechanism of dialling dolly on the drawbench, it comprises power transmission shaft that is arranged on main drive driving in the support and the front and back drawing dolly that is arranged at the frame upper surface track, the spiral pillar double-track cam of power transmission shaft 180 ° of identical and phase phasic differences before and after being equipped with respectively below each drawing dolly, fixed idler whell and action roller are close to the both sides of double-track cam working curved surface when double-track cam rotates, wherein fixed idler whell is arranged on rotationally to draw and dials below the dolly, and action roller is arranged on the gusset piece of action roller rotationally, and gusset piece is hinged on rotationally to draw and dials below the dolly, gusset piece and draw to dial between the dolly bottom and be provided with the hold down gag that makes action roller be close to the double-track cam working curved surface all the time is characterized in that described hold down gag is to adopt adjustable elastic mechanism.
2. the reciprocating mechanism that draws group dolly on the drawbench according to claim 1, it is characterized in that described adjustable elastic mechanism is that piston body is to be installed in mechanism's pedestal with seesawing, one end of piston body is provided with cuts somebody's hair, cut somebody's hair and under the elastic force of spring, conflict all the time with the gusset piece of action roller, one end of one end socket, first spring of piston body, the other end of first spring is supported on the spring base Intermediate gasket, spring base and mechanism's pedestal are fixed, other has adjusting screw(rod) to pass in the screwed hole of spring base, and withstands on the pad.
3. the reciprocating mechanism that draws group dolly on the drawbench according to claim 2, it is characterized in that described first spring outer diameter D=30mm～45mm, line footpath d=3.0mm～3.5mm, middle footpath D1=26.5mm～42mm, number of total coils N=7～8, number of active coils N c=5～6, material G=stainless steel wire, the elastic force scope of its spring is K=0.7945kgf/mm～1.4716kgf/mm.
4. according to the reciprocating mechanism of dialling dolly that draws on any described drawbench of claim of claim 1 to 3, it is characterized in that having left and right sides control panel on its clamp seat of described drawing dolly, described left and right sides control panel is on the clamp base rear end that is arranged in the drawing dolly, it between the control panel plug-in type, can move freely, the clamp seat is scalariform;
The adjustable and balancing device is arranged at a side of drawing dolly, and the support column by control panel links with it, is with balancing spring on the support column, and the elastic force of balancing spring moves left and right sides control panel, thus control jaw clamp position.
5. the reciprocating mechanism that draws group dolly on the drawbench according to claim 4, it is characterized in that described adjustable bascule is included in the balance pedestal that is provided with above that draws group dolly, have internal thread in the balance pedestal, adjusting rod system external screw thread, adjusting rod is threaded in the balance pedestal, support column one end is through in the balance pedestal, the support column other end is supported and fixed on the control panel by rubber blanket, balancing spring on the support column, the inner end is supported on the end face of adjusting rod, and the outer end is supported on the support column outer end.
6. the reciprocating mechanism that draws group dolly on the drawbench according to claim 5, it is characterized in that described balancing spring outer diameter D=25mm～30mm, line footpath d=1.8mm～2.2mm, middle footpath D1=22.8mm～28.2mm, number of total coils N=10～12, number of active coils N c=8～10, material G=stainless steel wire, the elastic force scope of its spring is K=0.09kgf/mm～0.18kgf/mm.
7. the reciprocating mechanism that draws group dolly on the drawbench according to claim 6 is characterized in that described support column and adjusting rod endoporus are to peg graft to cooperate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201185074U CN201625671U (en) | 2010-02-24 | 2010-02-24 | Draw carriage reciprocating mechanism of drawbench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201185074U CN201625671U (en) | 2010-02-24 | 2010-02-24 | Draw carriage reciprocating mechanism of drawbench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201625671U true CN201625671U (en) | 2010-11-10 |
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ID=43057055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201185074U Expired - Fee Related CN201625671U (en) | 2010-02-24 | 2010-02-24 | Draw carriage reciprocating mechanism of drawbench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201625671U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102161056A (en) * | 2010-02-24 | 2011-08-24 | 宁波金田铜管有限公司 | Reciprocating mechanism of drawing trolleys on drawing machine |
| CN103447327A (en) * | 2013-09-17 | 2013-12-18 | 西安麦特沃金液控技术有限公司 | Hydraulic continuous drawing machine |
-
2010
- 2010-02-24 CN CN2010201185074U patent/CN201625671U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102161056A (en) * | 2010-02-24 | 2011-08-24 | 宁波金田铜管有限公司 | Reciprocating mechanism of drawing trolleys on drawing machine |
| CN103447327A (en) * | 2013-09-17 | 2013-12-18 | 西安麦特沃金液控技术有限公司 | Hydraulic continuous drawing machine |
| CN103447327B (en) * | 2013-09-17 | 2015-07-08 | 西安麦特沃金液控技术有限公司 | Hydraulic continuous drawing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101110 Termination date: 20170224 |