CN203955918U - A kind of self-lubricating cupping tool - Google Patents
A kind of self-lubricating cupping tool Download PDFInfo
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- CN203955918U CN203955918U CN201420411914.2U CN201420411914U CN203955918U CN 203955918 U CN203955918 U CN 203955918U CN 201420411914 U CN201420411914 U CN 201420411914U CN 203955918 U CN203955918 U CN 203955918U
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- oil
- lubricating
- pin bushing
- guide pin
- self
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Abstract
The utility model discloses a kind of self-lubricating cupping tool, the self-lubricate during for workpiece cold-working drawing; Wherein, the guide pin bushing top of upper mould seat is sealed by blocking, guide pillar inserts from guide pin bushing bottom, the sealing load cavity of formation and modification in guide pin bushing, described pressure cavity is communicated with grease-box and a lubricant reservoir respectively by in-line and fuel-displaced pipeline, and described lubricant reservoir is communicated with the concave die cavity upper surface of drawing die; Described in-line is provided with the oil-in check valve of only import but no export, and described fuel-displaced pipeline is provided with the oil-out check valve of only export but no import.The utility model, on the basis of cupping tool, in conjunction with the principle of plunger displacement pump, utilizes guide pin bushing and guide pillar to realize the interlock of the work of mould drawing and oil filling, realizes and does not shut down self-lubricate, and system is simple, cost is low, high lubricating effect.
Description
Technical field
The utility model belongs to Cold Press Working technical field, relates to a kind of cupping tool, specifically a kind of self-lubricating cupping tool.
Background technology
Drawing (claiming again drawing) is to utilize Drawing Die under the pressure-acting of forcing press, and plate blank or hollow process part processing are made to open hollow part.
In large-scale, accurate drawing, need to be between die and workpiece coating lubricating oil, lubricatedly can effectively reduce the friction between workpiece and die, thereby reduce drawing pressure, reduce limit drawing coefficient, improve the processing performance of drawing part.Due to the minimizing of wearing and tearing, can extend die life and improve drawing precision simultaneously.The lubricating method adopting on cupping tool at present mainly contains following two kinds:
First method is to utilize the gap of cupping press work; manually, before blank enters mould station,, adopt and there is in this way following defect: 1. need to shut down lubricated toward punch and die surface coating lubricating oil with hairbrush; efficiency is low, directly affects the service efficiency of mould.2. owing to not being to adopt instant lubricating, lubricant effect is poor, and particularly large-scale drawing part is lubricated.3. manual operation is unfavorable for the realization of punching automation.
Second method is in conjunction with the hydraulic system of forcing press or a set of hydraulic system of otherwise designed, design a set of independent lubricant oil way, ceaselessly to die-face spraying lubricating oil, this method has time saving and energy saving benefit with respect to the method for the first manual application of lubricant, but also have the following disadvantages: 1. independent hydraulic lubricant oil system architecture complexity simultaneously, cost is high on the one hand, and system reliability reduces on the other hand.2. independently lubricating system of conduct, can not link with press work, and ceaselessly working environment is polluted in oil spout meeting, and the waste of lubricating oil is serious.3. lubricating oil can not act on friction surface, and lubricant effect is even sometimes not as good as the manual application of lubricant.
Utility model content
The technical problem that the utility model solves is: the above-mentioned defect and the deficiency that in greasing, exist for existing cupping tool, the utility model provides a kind of self-lubricating cupping tool, realize real-time self-lubricate in conjunction with the forcing press of cupping tool, and do not need separately to establish driver element, with forcing press work interlock, lubricant effect is obvious.
The utility model adopts following technical scheme to realize: a kind of self-lubricating cupping tool, comprise die shoe 1, upper bolster 17 and drawing die 19, described upper bolster 17 is connected with forcing press,, workpiece is pressed in the concave die cavity 23 of the drawing die 19 being installed on die shoe 17 along guide pillar 7 slippages that vertically arrange by guide pin bushing 9; Concrete, described guide pin bushing 9 tops are sealed by blocking 15, guide pillar 7 inserts from guide pin bushing bottom, the pressure cavity 11 of formation and modification in guide pin bushing, described pressure cavity 11 is communicated with grease-box 2 and a lubricant reservoir 21 respectively by in-line and fuel-displaced pipeline, and described lubricant reservoir 21 is communicated with concave die cavity 23 upper surfaces of drawing die; Described in-line is provided with oil-in check valve 3, ensure that lubricating oil can only unidirectional inflow pressure cavity in, described fuel-displaced pipeline is provided with oil-out check valve 6, ensures that lubricating oil can only be from unidirectional outflow in pressure cavity.
Further, in order to expand the volume of guide pin bushing internal pressure cavity, on described upper bolster 17, offer through hole, described guide pin bushing 9 plug-in mountings are installed in described through hole and towards below and extend, and described blocking 15 is installed in through hole upper end by guide pin bushing upper end closed by screw 10.
Further, in order to ensure the sealing of pressure cavity, between described blocking 15 and upper bolster 17, be provided with the second oil sealing 14, between described guide pin bushing 9 and guide pillar 7, be provided with the first oil sealing 8.
Further, the cannelure of described lubricant reservoir 21 for offering around concave die cavity 23, its openend seals by oil pocket shutoff ring 22; On the side drawing die 19 of described lubricant reservoir 21, offer oil pocket oil-in 24 and be connected with fuel-displaced pipeline, evenly offer lubricated hydraulic fluid port 18 around the drawing die upper surface of described concave die cavity 23 and be communicated with lubricant reservoir 21.
Further, described drawing die 19 is installed on die shoe 1 by die holder 20.
Further, as wherein a kind of preferred version of the present utility model, on described guide pillar 7, offering fuel feed hole 12 is connected with in-line and fuel-displaced pipeline respectively with oil outlet 13, described fuel feed hole 12 and oil outlet 13 are parallel to the axis direction of guide pillar and arrange, its outlet is arranged on guide pillar bottom, and fuel inlet fitting 4 and delivery connection 5 are set respectively in exit position.
Further, as another kind of preferred version of the present utility model, on described blocking 15, offer fuel feed hole 12 and be connected with in-line and fuel-displaced pipeline respectively with oil outlet 13.
The utility model is on existing cupping tool basis, with blocking by guide pin bushing inner sealing, port and the guide pillar of guide pin bushing relatively move, and at blocking and die holder, between guide pin bushing and guide pillar, oil sealing is set, make the inner pressure cavity that forms a sealing of guide pin bushing, in the time that upper bolster pumps, guide pin bushing and guide pillar are equivalent to piston and piston cylinder, pressure size in this airtight pressure cavity constantly changes, utilize the principle of plunger displacement pump to realize oil suction and oil extraction, on the in-line being communicated with pressure cavity and fuel-displaced pipeline, be respectively equipped with check valve, realize lubricating oil according to sucking guide pin bushing from grease-box, and carry out from being pressed into the route that lubricant reservoir is lubricated groove mold cavity surface in guide pin bushing.
From the above mentioned, the utlity model has following beneficial effect:
1. the utility model forms an airtight pressure cavity in guide pin bushing, utilize relative motion and two one-way cocks of oppositely installing of guide pillar and guide pin bushing to form the oil supply system that is similar to plunger displacement pump, do not need special hydraulic system and power, system is simple, cost is low.
2. the utility model oiling in the press work stroke of mould, at the backhaul fuel cut-off of mould, lubricating efficiency is high, and lubricated and mold work interlock, realizes and does not shut down self-lubricate, is convenient to realize automation, and non lubricant oil waste.
3. pressure lubrication oil is injected on the friction surface between workpiece and drawing die by lubricating hydraulic fluid port Direct Uniform, high lubricating effect.
Effectively lubrication and cooling has equally important technology, economic implications on other cold punching die, and same, the utility model is a kind of cupping tool with self-lubricating function, and its technology also can be applied on other cold punching die that needs cooling and lubrication.
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
Brief description of the drawings
Fig. 1 is the front view of a kind of self-lubricating cupping tool in embodiment 1.
Fig. 2 is the top view of the drawing die in the utility model.
Fig. 3 is that A in Fig. 2 is to cutaway view.
Fig. 4 is guide pin bushing in embodiment 2 and the structural representation of guide pillar.
Fig. 5 is the punching stroke schematic diagram of the self-lubricating cupping tool in embodiment 2.
Fig. 6 is the backhaul schematic diagram of the self-lubricating cupping tool in embodiment 2.
Number in the figure: 1-die shoe, 2-grease-box, 3-oil-in check valve, 4-fuel inlet fitting, 5-delivery connection, 6-oil-out check valve, 7-guide pillar, 8-the first oil sealing, 9-guide pin bushing, 10-screw, 11-pressure cavity, 12-fuel feed hole, 13-oil outlet, 14-the second oil sealing, 15-blocking, 16-die shank, 17-upper bolster, 18-lubricates hydraulic fluid port, 19-drawing die, 20-die holder, 21-lubricant reservoir, 22-oil pocket shutoff ring, 23-concave die cavity, 24-oil pocket oil-in.
Detailed description of the invention
Embodiment 1
Referring to Fig. 1 to Fig. 3, a kind of self-lubricating cupping tool, comprise die shoe 1, upper bolster 17 and drawing die 19, upper bolster 17 is connected with forcing press by the die shank 16 arranging on it, guide pillar 7 slippages by guide pin bushing 9 along vertical setting, workpiece is pressed in the concave die cavity 23 of the drawing die 19 being installed on die shoe 17, drawing die 19 is installed on die shoe 1 by die holder 20, guide pin bushing 9 tops are sealed by blocking 15, guide pillar 7 inserts from guide pin bushing bottom, the pressure cavity 11 of formation and modification in guide pin bushing, pressure cavity 11 is communicated with grease-box 2 and a lubricant reservoir 21 respectively by in-line and fuel-displaced pipeline, concrete, as shown in fig. 1, on guide pillar 7, offering fuel feed hole 12 is connected with in-line and fuel-displaced pipeline respectively with oil outlet 13, fuel feed hole 12 and oil outlet 13 are parallel to the axis direction of guide pillar and arrange, its outlet is arranged on guide pillar bottom, and fuel inlet fitting 4 is set respectively in exit position is connected with in-line and fuel-displaced pipeline respectively with delivery connection 5.Lubricating oil on in-line by oil-in check valve 3, can only unidirectional inflow pressure cavity in, on fuel-displaced pipeline through oil-out check valve 6, can only be from unidirectional being pressed in lubricant reservoir in pressure cavity.
Wherein, lubricant reservoir 21 is communicated with concave die cavity 23 upper surfaces of drawing die, specifically referring to Fig. 2 and Fig. 3, and the cannelure that lubricant reservoir 21 is offered for drawing die 19 bottoms, cannelure arranges around concave die cavity 23, and the openend of its bottom is by oil pocket shutoff ring 22 and oil sealing sealing; On the drawing die 19 of lubricant reservoir 21 sides, offer oil pocket oil-in 24 and be connected with fuel-displaced pipeline, evenly offer lubricated hydraulic fluid port 18 around the drawing die upper surface of concave die cavity 23 and be communicated with lubricant reservoir 21.Its process can first mill out cannelure in the bottom of drawing die, then by with interference fit combination seal circle, cannelure sealing being circularized to the lubricant reservoir in space between shutoff ring and cannelure, then bore multiple oilholes at the end face of drawing die around the periphery of concave die cavity and be communicated with lubricant reservoir.
In order to expand the volume of guide pin bushing internal pressure cavity, guide pin bushing 9 can adopt following connected mode with upper bolster 17: on upper bolster 1, offer through hole, guide pin bushing 9 plug-in mountings are installed in through hole and towards below and extend, and blocking 15 is installed in through hole upper end by guide pin bushing upper end closed by screw 10.Between blocking 15 and upper bolster 1, be provided with the second oil sealing 14, between guide pin bushing 9 and guide pillar 7, be provided with the first oil sealing 8, to ensure that pressure cavity has good sealing.
Embodiment 2
As the another kind of preferred version of embodiment 1, the mode that pressure cavity is connected with in-line and fuel-displaced pipeline as shown in Figure 4: on blocking 15, offer fuel feed hole 12 and oil outlet 13 and be connected with in-line and fuel-displaced pipeline respectively.
Specifically referring to Fig. 5, when upper bolster 17 is descending, while being mould Operating In Persistent Current Mode, the volume of pressure cavity 11 reduces, and pressure increases, and now oil-in check valve 3 is closed, oil-out check valve 6 is opened, lubricating oil in pressure cavity 11 is pressed in lubricant reservoir through oil-out check valve 6 by oil outlet 13, and lubricant reservoir obtains the oily and concave die cavity upper surface oiling to drawing die by oilhole under pressure, completes workpiece drawing lubricated in concave die cavity.Referring to Fig. 6, when upper bolster 17 is up, i.e., when mould die sinking, the volume of pressure cavity 11 increases, pressure decreased, now oil-in check valve 3 is opened, and oil-out check valve 6 is closed, and lubricant reservoir is not because there is no the pressure of pressure cavity, stop to die surface oiling, meanwhile, the low pressure in pressure cavity 11 sucks the lubricating oil in grease-box 2 through oil-in check valve 3 and fuel feed hole 12, the lubricating oil of annotating while supplementing next mould Operating In Persistent Current Mode.
Above-mentioned two steps are lubricated oil filling along with the continuous production of upper bolster 17 realizes in real time to drawing die.
Above-mentioned is preferred embodiment of the present utility model; but those skilled in the art should be understood that; not departing from the spirit and scope of the present utility model that appended claims limits; the various variations of in form and details the utility model having been done, all belong to protection domain of the present utility model.
Claims (7)
1. a self-lubricating cupping tool, comprise die shoe (1), upper bolster (17) and drawing die (19), described upper bolster (17) is connected with forcing press, guide pillar (7) slippage by guide pin bushing (9) along vertical setting, workpiece is pressed in the concave die cavity (23) of the drawing die (19) being installed on die shoe (17), it is characterized in that:
Described guide pin bushing (9) top is by blocking (15) sealing, guide pillar (7) inserts from guide pin bushing bottom, the pressure cavity of formation and modification (11) in guide pin bushing, described pressure cavity (11) is communicated with grease-box (2) and a lubricant reservoir (21) respectively by in-line and fuel-displaced pipeline, and described lubricant reservoir (21) is communicated with concave die cavity (23) upper surface of drawing die; Described in-line is provided with oil-in check valve (3), ensure that lubricating oil can only unidirectional inflow pressure cavity in, described fuel-displaced pipeline is provided with oil-out check valve (6), ensures that lubricating oil can only be from unidirectional outflow in pressure cavity.
2. a kind of self-lubricating cupping tool according to claim 1, it is characterized in that: described upper bolster is offered through hole on (17), described guide pin bushing (9) plug-in mounting is installed in described through hole and towards below and extends, and described blocking (15) is installed in through hole upper end by guide pin bushing upper end closed by screw (10).
3. a kind of self-lubricating cupping tool according to claim 2, it is characterized in that: between described guide pin bushing (9) and guide pillar (7), be provided with the first oil sealing (8), between described blocking (15) and upper bolster (17), be provided with the second oil sealing (14).
4. a kind of self-lubricating cupping tool according to claim 1, is characterized in that: the cannelure of described lubricant reservoir (21) for offering around concave die cavity (23), and its openend is by oil pocket shutoff ring (22) sealing; On the drawing die (19) of described lubricant reservoir (21) side, offer the oil pocket oil-in (24) being connected with fuel-displaced pipeline, evenly offer lubricated hydraulic fluid port (18) around the drawing die upper surface of described concave die cavity (23) and be communicated with lubricant reservoir (21).
5. a kind of self-lubricating cupping tool according to claim 1, is characterized in that: described drawing die (19) is installed on die shoe (1) by die holder (20).
6. according to a kind of self-lubricating cupping tool described in any one in claim 1-5, it is characterized in that: on described guide pillar (7), offer fuel feed hole (12) and be connected with in-line and fuel-displaced pipeline respectively with oil outlet (13), described fuel feed hole (12) and oil outlet (13) are parallel to the axis direction of guide pillar and arrange, its outlet is arranged on guide pillar bottom, and fuel inlet fitting (4) and delivery connection (5) are set respectively in exit position.
7. according to a kind of self-lubricating cupping tool described in any one in claim 1-5, it is characterized in that: on described blocking (15), offer fuel feed hole (12) and be connected with in-line and fuel-displaced pipeline respectively with oil outlet (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420411914.2U CN203955918U (en) | 2014-07-24 | 2014-07-24 | A kind of self-lubricating cupping tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420411914.2U CN203955918U (en) | 2014-07-24 | 2014-07-24 | A kind of self-lubricating cupping tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203955918U true CN203955918U (en) | 2014-11-26 |
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ID=51916558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420411914.2U Withdrawn - After Issue CN203955918U (en) | 2014-07-24 | 2014-07-24 | A kind of self-lubricating cupping tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203955918U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104117589A (en) * | 2014-07-24 | 2014-10-29 | 湖南农业大学 | Automatic-lubricating drawing die |
| CN105817537A (en) * | 2016-01-08 | 2016-08-03 | 浙江吉利汽车有限公司 | Die guide lubricating structure |
-
2014
- 2014-07-24 CN CN201420411914.2U patent/CN203955918U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104117589A (en) * | 2014-07-24 | 2014-10-29 | 湖南农业大学 | Automatic-lubricating drawing die |
| CN104117589B (en) * | 2014-07-24 | 2015-12-30 | 湖南农业大学 | Self-lubricating cupping tool |
| CN105817537A (en) * | 2016-01-08 | 2016-08-03 | 浙江吉利汽车有限公司 | Die guide lubricating structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141126 Effective date of abandoning: 20151230 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |