CN2074685U - Automatic adjusting clamping device for cold drawing machine - Google Patents
Automatic adjusting clamping device for cold drawing machine Download PDFInfo
- Publication number
- CN2074685U CN2074685U CN 90201933 CN90201933U CN2074685U CN 2074685 U CN2074685 U CN 2074685U CN 90201933 CN90201933 CN 90201933 CN 90201933 U CN90201933 U CN 90201933U CN 2074685 U CN2074685 U CN 2074685U
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- clamp
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- clamping mechanism
- utility
- connecting rod
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Abstract
The utility model relates to an automatic adjusting type clamping device for the cold drawing machine, and the utility model is a clamping tool of the cold drawing machine processing. The utility model increases a sliding block device or a connecting rod device whose motion direction is formed along the included angle direction with the longitudinal motion of a clamping mechanism on the hinged bearing of the existing connecting rod type clamping mechanism. Two freedom degrees are arranged in the entire mechanism. Under any situation, the workpiece can be ensured to clamp totally. The reliability of the clamping reaches 100%.
Description
Technical field is under the utility model: the clamping device of metal bar cold drawing processing.
Prior art situation and retrieval: the double-chain cogging cold-drawn unit that manufactures and designs both at home and abroad, the connecting rod clamping mechanism on its clamp dolly is equipped with a pair of clamp.Clamp is clamped workpiece drawing backward, finishes the cold-drawn processing of workpiece.
The link-type clamping mechanism as shown in Figure 1; Among the figure: the left clamp of 1 representative, the right clamp of 2 representatives, 3 representatives are hinging supporting shaft fixedly, and 4 represent connecting rod, 5 deputy activity hinging supporting shafts, 6 represent the slip cross bar, and M represents dolly.Left and right clamp is linked together by fixedly hinging supporting shaft and dolly, when the slip cross bar when power P spurs, dolly then is subjected to affecting of rightabout pre-folder power N, so the fixedly hinging supporting shaft of dolly and clamp temporarily rests on the origin-location.When jaw close up or clamping work pieces after because P＞N, so the slip cross bar affects dolly and clamp to move backward, the workpiece that is held is by the extruding of mould, shape or size change, and finish the cold-drawn process operation.
The jaw movement locus of above-mentioned connecting rod clamping mechanism is fixed, and be symmetrical in the longitudinal centre line of mechanism, such clamping mechanism is strict to the Workpiece clamping head position, if the chuck position center line of workpiece departs from the clamp center line, then when jaw draws in, a slice clamp contact workpiece is only arranged, and another sheet clamp leaves workpiece.Therefore this moment, clamping mechanism was obstructed, and was in relative static conditions, and moved backward with dolly, and workpiece is owing to clamped by clamp, thereby rested on the origin-location, can't realize cold-drawn processing.
The inventor has consulted nearly 4 years some national publication; Reach publications such as " metallurgical equipments " as " steel pipe ", " external steel pipe ", " steel rolling ", " heavy-duty machinery ", there is no follow-on new construction.
The purpose of utility model: solve in the cold-drawn process, inevitably the mutual error problem between center, Workpiece clamping head position and the clamp center; The utility model sets about improving from clamping mechanism, makes jaw adjust the position " automatically ", and clamp can clip workpiece reliably, realizes normal cold-drawn operation.
The utility model content: the essence of this utility model is on the hinged point of as shown in Figure 1 existing link-type clamping mechanism, increases a slide block device or a linkage that becomes the motion of angle direction with lengthwise movement.Thereby make the possibility of an action of hinged some increase, thereby whole linkage just have two frees degree.The movement locus of left and right two clamps just can change on demand and adjust the position automatically with the skew of Workpiece clamping head position, guarantees can both clamp workpiece under any state.
Slide block device or linkage have the balance restraining force, when slide block device or linkage band hinged some disalignment, just are subjected to pointing to the effect of the reaction balance power of centerline direction.
The operation principle of utility model: when the Workpiece clamping head position offsets to one side, just contact workpiece at first of the grip finger of this side on the linkage, and the clamp of opposite side contact workpiece not as yet, this moment, clamping mechanism was under the effect of pretightning force N, the clamp dolly is still stayed the home position, and the connecting rod clamping mechanism still does to clamp action under the affecting of power P, but owing to the jaw of a slice clamp is stopped, so slide block device or linkage; And the device on hinged point just offset to one side, that clamp that does not contact with workpiece is subsequently just drawn close to workpiece, also contacts with the worker at last.Like this, left and right two clamps just successively contact with workpiece, finish to clamp action.At this moment, linkage just gets off with relative fixed under the state of a hinged some disalignment, and under power P traction, finishes cold drawing processing.
Utility model compared with prior art, advantage that is had and positive achievement:
The utility model clips reliability and reaches 100%, even pipe bar Workpiece clamping head position deviation is bigger, also can realize normal cold-drawn operation, and existing clamping mechanism can not guarantee ordinary production.Therefore adopt the cold-drawn clamp dolly behind the utility model, its adaptability is more extensive, and the domestic and international equipment of the same type of technical ratio is advanced more.
The accompanying drawing of utility model and embodiment:
Below in conjunction with drawings and Examples the utility model is described in further detail.
Fig. 1 is the schematic diagram of existing link-type clamping mechanism;
Fig. 2 is the detail drawing of the one kind of structure of the utility model;
Referring to accompanying drawing 1 and accompanying drawing 2:
［ 1 ］ among the figure, ［ 2 ］, ［ 3 ］, ［ 4 ］, ［ 5 ］, ［ 6 ］ are the parts in addition of existing link-type clamping mechanism;
Wherein: ［ 1 ］ represents left clamp, ［ 2 ］ represent right clamp, ［ 3 ］ represent fixedly hinging supporting shaft, with the hinged hole of left and right clamp movingly, and be installed on the dolly, ［ 4 ］ represent connecting rod, form by (4-a) with (4-b), wherein (4-a) represents hinged shaft of connecting rod, (4-b) represents link body.
［ 5 ］ deputy activity hinging supporting shaft, with the hinged hole of cross bar (6-C) movingly.
［ 6 ］ represent the slip cross bar, it is made up of (6-a), (6-b), (6-C), (6-d), (6-e), (6-f).Wherein (6-a) represents wheel, (6-b) represents guide rail, (6-C) represents cross bar, (6-d) represents axle sleeve, (6-e) represents guide rod, (6-f) represents supporting base.Cross bar (6-C) can travel longitudinally along guide rod (6-e).Wheel (6-a) can be done and the synchronous motion of cross bar (6-C) along guide rail (6-b).
［ 7 ］ among the figure are the slide block devices that increases newly on the moveable hinge fulcrum ［ 5 ］ of existing link-type clamping mechanism.It waits other to constitute by part by (7-a), (7-b), (7-c), (7-d), (7-e), (7-f), (7-g), (7-h).
Wherein:
(7-a) represent hinge before the slide block, it is fixed on the take-up housing (7-b), with the hinged hole of link body (4-b) movingly.
(7-b) represent take-up housing, it is square that it is approximate prolate, hinged hole before front end has two, the preceding hinge (7-a) of two slide blocks is housed on the hole, hinge (7-h) behind the slide block is equipped with in hinged hole after the rear end has on the hole, at the flat-square shaped middle part of take-up housing (7-b), have two cross-drilled holes, the two ends in hole are screwed each sliding sleeve (7-d).
(7-C) represent bolster, its central part has a shoulder, and a balancing spring (7-e) respectively is inserted in the shoulder both sides, and bolster (7-C) and balancing spring (7-e) are pre-installed in the cross-drilled hole of take-up housing (7-e).Bolster (7-C) and sliding sleeve (7-d) are movingly.Therefore two bolsters (7-C) can be done horizontal relative motion with take-up housing (7-b), and are subjected to the centripetence power of balancing spring (7-e).Wheel (6-a) is equipped with at bolster (7-C) two ends.At the shaft part place of being equipped with between wheel (6-a) and the sliding sleeve (7-d), both sides respectively process a garden groove.
(7-d) represent sliding sleeve.
(7-e) represent balancing spring.
(7-f) represent clamp, it is made up of two halves, and be screwed, on per half part clamp two semicircle holes are arranged, after the assembling of two halves clamp, form hole, two gardens at joint, the hole, garden just in time is stuck on the garden groove of bolster (7-C), and two bolsters (7-C) are connected together with relatively-stationary form.
(7-g) represent towing plate, it is square to be shaped as prolate, and there is the hinged hole that cooperates with hinging supporting shaft at two ends, and wherein a hinged hole is connected movingly with moveable hinge fulcrum ［ 5 ］, the hinged hole of hinged hole of another and take-up housing (7-b) back connects movingly with hinging supporting shaft behind the slide block (7-h).By moveable hinge fulcrum ［ 5 ］, slide block device ［ 7 ］ and slip cross bar ［ 6 ］ are linked together.
(7-h) represent hinging supporting shaft behind the slide block.
The slide block device of being made up of above part in addition ［ 7 ］ links together with slip cross bar ［ 6 ］.Because the wheel (6-a) that is installed on the bolster (7-C) can travel longitudinally along guide rail (6-b), so slide block device ［ 7 ］ can travel longitudinally along with cross bar (6-C) again.
Simultaneously, because take-up housing (7-b) can be done transverse movement along bolster (7-C) again.Therefore take-up housing (7-b) has vertically and horizontal two mobilities.Like this, whole connecting rod clamping mechanism just has two frees degree, and the movement locus of left and right clamp ［ 1 ］, ［ 2 ］ just can arbitrarily change.
［ A ］ in the accompanying drawing is bearing pin.［ B ］ is chain joint, and it links together by bearing pin ［ A ］ and cross bar (6-c), travels longitudinally thereby drive cross bar (6-C).［ M ］ is dolly, and it is to link together by fixedly hinging supporting shaft ［ 3 ］ fixed thereon and connecting rod clamping mechanism.
Clamping mechanism operation principle shown in Figure 2 is as described below: cross bar (6-C) moves under the pulling of haulage chain backward.And by slide block device ［ 7 ］ and two clamps gatherings of connecting rod ［ 4 ］ drive.When the workpiece head that is pulled out by folder departed from longitudinal centre line, the clamp of a side is contact workpiece at first, and interrupted.But the effect that is subjected to rightabout pretightning force owing to dolly rests on the home position, so the connecting rod clamping mechanism still continues motion under the pulling of tractive force.Take-up housing (7-b) drivening rod main body this moment (4-b) offsets to one side, and affects the clamp that does not contact with workpiece simultaneously, makes it to draw close to workpiece.At this moment because take-up housing (7-b) disalignment, behind the clamp workpiece pressing, each of connecting rod clamping mechanism in addition part just relative fixed get off.
At this moment, because take-up housing (7-b) disalignment, so balancing spring (7-e) is compressed, take-up housing (7-b) is subjected to pointing to the equilibrant force of centerline direction.Because tractive force greater than pretightning force, moves with dolly together backward so clamp is just clamped workpiece, finish drawing work again.After drawing finishes, cross bar (6-C) stops immediately, and dolly ［ M ］ and clamping mechanism are because inertia, still to backlash, so jaw opens, workpiece falls in the feeder, and take-up housing this moment (7-b) is under the effect of balancing spring (7-e), draw close to longitudinal centre line, till recovering the home position (position as shown in Figure 2).
From the clamping mechanism operation principle of above narration as can be known: because the slide block device ［ 7 ］ that increases newly can move laterally, promptly mechanism has two frees degree, so jaw can adjust the position by actual conditions, guarantees to clip reliably workpiece.
Each other part of connecting rod clamping mechanism is generally used the metal material manufacturing, preferably adopts high-intensity structural alloy steel or carbon steel manufacturing.
Claims (1)
1, a kind of drawbench self-adjustable clamping mechanism of forming by the slip cross bar [6] of left clamp [1], right clamp [2], fixedly hinging supporting shaft [3], connecting rod [4], moveable hinge bearing [5], motion longitudinally, it is characterized in that it also by the slide block device of the general slide block mechanism that is connected, becomes the angle direction to move with moveable hinge fulcrum [5] or with fixing hinging supporting shaft [3] with the mechanism lengthwise movement or generally the linkage [7] of linkage formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90201933 CN2074685U (en) | 1990-02-20 | 1990-02-20 | Automatic adjusting clamping device for cold drawing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90201933 CN2074685U (en) | 1990-02-20 | 1990-02-20 | Automatic adjusting clamping device for cold drawing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2074685U true CN2074685U (en) | 1991-04-10 |
Family
ID=4883441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90201933 Expired - Lifetime CN2074685U (en) | 1990-02-20 | 1990-02-20 | Automatic adjusting clamping device for cold drawing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2074685U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102699072A (en) * | 2012-06-18 | 2012-10-03 | 安徽泰利钢业有限公司 | Cold-drawing machine for processing steel pipe |
| CN112246893A (en) * | 2020-10-20 | 2021-01-22 | 芜湖巨科电气设备有限公司 | Full-automatic anti-deviation wire drawing equipment |
-
1990
- 1990-02-20 CN CN 90201933 patent/CN2074685U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102699072A (en) * | 2012-06-18 | 2012-10-03 | 安徽泰利钢业有限公司 | Cold-drawing machine for processing steel pipe |
| CN112246893A (en) * | 2020-10-20 | 2021-01-22 | 芜湖巨科电气设备有限公司 | Full-automatic anti-deviation wire drawing equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| C53 | Correction of patent for invention or patent application | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: PATENTEE; FROM: SEAMLESS STEEL TUBING MILL OF GUANGZHOU STEELWORK TO: GUANGZHOU STEELWORK GROUP CO. |
|
| CP01 | Change in the name or title of a patent holder |
Patentee after: Guangzhou iron and Steel Group Corporation Patentee before: Seamless Steel Tube Branch Factory, Guangzhou Iron and Steel Co. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |