CN103846958B - A kind of two-freedom mechanical protection mechanism of cutting off tool and using method thereof - Google Patents
A kind of two-freedom mechanical protection mechanism of cutting off tool and using method thereof Download PDFInfo
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- CN103846958B CN103846958B CN201410100030.XA CN201410100030A CN103846958B CN 103846958 B CN103846958 B CN 103846958B CN 201410100030 A CN201410100030 A CN 201410100030A CN 103846958 B CN103846958 B CN 103846958B
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Abstract
The present invention proposes a kind of two-freedom mechanical protection mechanism and using method thereof of cutting off tool.The present invention includes cutter, connector, protector and carriage; Protector is fixedly connected on one end of carriage, and cutter is slidably connected by connector and carriage; Protector is by the horizontal slip of carriage counter-knife.Concrete comprises the first nut, the first screw rod, the second nut, the second screw rod, base, blade, sheath, shell fragment, slide block, the 3rd nut, the first screw, the 4th nut, the second screw, the second spring, the second limited block, the first spring, the first limited block.The present invention has the cutter of two-freedom, and protective device have employed the frame for movement of 100%, and structure is simple, reliable; Do not need the automatics based on electronic device, avoid the use of electric wiring and motor; Simple to operate, do not need to add operational motion; The automatic protection functions of cutter does not hinder the normal use of cutter.
Description
Technical field
The invention belongs to machinery manufacturing technology field, be specifically related to a kind of two-freedom mechanical protection mechanism and using method thereof of cutting off tool.
Technical background
From industry, machinery manufacturing industry is the basic industry of national economy.It has influence on the development of each department of national economy, also has influence on the reinforcement of national economy and defense force.The development of any industry in national economy, must rely on the support of machinery manufacturing industry and provide equipment; In national economy productivity is formed, the effect of manufacturing technology accounts for more than 60%.Therefore, each state all gives top priority the development of machinery manufacturing industry.World Developed Countries based on the U.S. thinks that the source machinery manufacturing industry of the wealth of society accounts for 2/3rds.Current, the four large pillar science interdependences such as manufacturing science, information science, material science, bioscience.But rear three kinds of science must rely on manufacturing science ability formation industry, and create social materials wealth.And the development of manufacturing science also must rely on the development of information, material and bioscience, machinery manufacturing industry is the best set chalaza that any other new and high technology realizes industrial value.Such as: 3D printer, virtual-shaft machine tool, intelligence structure and system etc., far beyond the category of pure machinery.They are the modern machinery and equipments integrating numerous technology such as machinery, electronics, control, computer, material.Along with increasingly sharpening of engineering goods competition in the international market, new and high technology is all injected the exploitation of engineering goods by each major company, as the important segment of prevail over competition.
From subject, Mechanical Manufacture and Automation is the subject of research machine-building theory, manufacturing technology, automated manufacturing system and an Advanced Manufacturing Modes.The latest development of each related discipline of this subject convergence, makes manufacturing technology, manufacturing system and manufacturing mode present brand-new looks.
Machining is the main method of mechanical manufacturing field.It cuts material layer unnecessary on blank or workpiece with cutting element, makes the processing method of the geometry of workpiece acquisition regulation, size and surface quality.Cutting element is referred to as cutter.Cutter divides lathe use, hand is used.In machine-building, cutter can be used in the various material such as cutting metal, macromolecule.Machining has a wide range of applications in multiple terminal applies industries such as lathe, Making mold, automobile and parts manufacture, universal machine manufacture, shipbuilding, Aero-Space, wind-powered electricity generation, track traffic, electronic apparatus, five metals and nonmetallic materials manufacture.
Cutting off tool is the special cutter of a class, comprising: the multiple subclasses such as tooth blade, band saw, bow saw, parting-off tool, metal saw, hand tools.The cutting edge protection of a lot of parting tool is bad, easily hurts limbs, the non-processing object of user on the one hand; Also work cutting edge is easily allowed directly to bump to hard object on the other hand, damage cutting edge.
The health of how to isolate cutting off tool and non-processing object or user becomes the important engineering proposition of cutting off tool security protection.Common guard method, have employed the mode that cutting edge lags.Although this guard method structure is very simple, also inconvenient during use, need manual removal or put, have impact on operating efficiency.And, when use instrument, user and edge contacts can not be protected in real time, easily cause work damage.
Therefore, the invention provides a kind of cutting edge protection mechanism of automatic telescopic, improve the security of operating process; Meanwhile, to a certain extent, cutting edge can be protected collided by external object and produce destruction.
Summary of the invention
The object of the invention is for the deficiencies in the prior art, a kind of two-freedom mechanical protection mechanism and using method thereof of cutting off tool are provided.Do not using in situation of the present invention, the present invention can automatically isolate cutter and contact with external object; When using such cutter, it can automatically bounce back, thus make cutter fully with object contact to be cut, ensure to cut off accessible; This device is without the need to driven by power, and using method is simple, reliable; In field of machining, this invention is with a wide range of applications.
A two-freedom mechanical protection mechanism for cutting off tool, comprises cutter, connector, protector and carriage; Protector is fixedly connected on one end of carriage, and cutter is slidably connected by connector and carriage; Protector is by the horizontal slip of carriage counter-knife.
Cutter comprises base and blade, and blade is arranged on the individual side of base, horizontally disposed with base; Base is furnished with two manholes, arranged direction is parallel with the edge of a knife face of base;
Connector comprises the first nut, the first screw rod, the second nut, the second screw rod, the 3rd nut, the 4th nut; Slide block is arranged on the below of base, and leaves space between slide block and base; Slide block is furnished with groove and two round thread through holes of two strips, and groove on slide block is corresponding with the manhole on base arranges, two round thread through holes simultaneously on slide block are arranged on one end of two grooves, and with groove not on the same line; First screw rod and the second screw rod run through the manhole on base and the groove on slide block from top to bottom respectively; Wherein the first nut and the 3rd nut respectively with the two ends threaded engagement of the first screw rod, thus base and slide block are fixed on the post portion of the first screw rod; Second nut and the 4th nut respectively with the two ends threaded engagement of the second screw rod, thus base and slide block are fixed on the post portion of the second screw rod;
Protector comprises sheath and shell fragment, and shell fragment is arranged between base and the space of slide block, and its one end is connected with the round thread through hole whorl of two on slide block with the second screw, with base without being connected by the first screw; The other end of shell fragment is embedded with sheath;
Carriage comprises slide block, the second spring and the first spring; First spring is connected with the second screw with the first screw with one end of the second spring, and the first spring keeps vertical with the first screw with the axis of the second screw with the axis of the second spring, the other end of the first spring and the second spring be connected with the second limited block with the first limited block respectively; First limited block and the second limited block are arranged on the lower surface of base.
The width of two grooves on slide block is greater than the diameter of the first screw rod and the second screw rod, the post portion of the first screw rod and the second screw rod can along the groove horizontal slip on slide block, and the first screw rod and the second screw rod are fixedly connected with base, there is no the change of relative position; First screw is connected with the first spring one end with the second spring with the second screw simultaneously, the motion of its horizontal direction is limited by the pulling force of the first spring and the second spring, when external force promote the active force of slide block be greater than the first spring and the second spring pulling force and, produce slide block and base relative motion in the horizontal direction; After external force promotes the active force disappearance of slide block, the horizontal relative position of slide block and base returns to original position.
A using method for the two-freedom mechanical protection mechanism of cutting off tool, comprises the steps:
The cutting part of part to be cut is aimed at the edge of a knife of blade by step 1., and because sheath is positioned at the front end of blade, first part to be cut contacts sheath;
Step 2. utilizes the tension force of part to be cut to apply active force obliquely to sheath, and active force will force sheath exit blade, and then, downward, inside both direction bounces back, thus produces the motion of two-freedom; Do not have the obstruction of sheath, the edge of a knife of blade can insert part to be cut;
Step 3. is after part to be cut is cut off by blade, and the tension force of part to be cut disappears, and can not continue sideling to pressing down sheath, sheath, under the screen resilience effect of shell fragment, the first spring and the second spring, returns to original position, continues protection blade.
Of the present inventionly usefully to be described as follows:
The present invention has the cutter of two-freedom, and protective device have employed the frame for movement of 100%, and structure is simple, reliable; Do not need the automatics based on electronic device, avoid the use of electric wiring and motor; Simple to operate, do not need to add operational motion; Cutter automatic protection functions do not hinder the normal use of cutter.The present invention is applicable to cutter protection and user's safeguard protection of multiple cutting technique.Cutting material comprises: various plastics, cotton, yarn, felt, PVC etc.
Accompanying drawing explanation
Fig. 1 is two-freedom cutter protection mechanical mechanism schematic diagram;
The two-freedom not motion schematic diagram that Fig. 2 (a) is said mechanism;
The two-freedom motion schematic diagram that Fig. 2 (b) is said mechanism;
The using method schematic diagram that Fig. 3 (a) is said mechanism;
The using method schematic diagram that Fig. 3 (b) is said mechanism;
The using method schematic diagram that Fig. 3 (c) is said mechanism;
In figure, the first nut 1, first screw rod 2, second nut 3, second screw rod 4, base 5, blade 6, sheath 7, shell fragment 8, slide block 9, the 3rd nut 10, first screw 11, the 4th nut 12, second screw 13, second spring 14, second limited block 15, first spring 16, first limited block 17.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described.
As shown in Figure 1, a kind of two-freedom mechanical protection mechanism of cutting off tool, comprises cutter, connector, protector and carriage; Protector is fixedly connected on one end of carriage, and cutter is slidably connected by connector and carriage; Protector is by the horizontal slip of carriage counter-knife.
Cutter comprises base 5 and blade 6, and blade 6 is arranged on the individual side of base 5, horizontally disposed with base 5; Base 5 is furnished with two manholes, arranged direction is parallel with the edge of a knife face of base 5; Wherein base 5 is clamping parts of cutter, and blade 6 is working portions of cutter.
Connector comprises the first nut 1, first screw rod 2, second nut 3, second screw rod 4, the 3rd nut 10, the 4th nut 12; Slide block 9 is arranged on the below of base 5, and leave space between slide block 9 and base 5, slide block 9 is furnished with groove and two round thread through holes of two strips, and groove on slide block 9 is corresponding with the manhole on base 5 arranges, two round thread through holes simultaneously on slide block 9 are arranged on one end of two grooves, and with groove not on the same line; First screw rod 2 and the second screw rod 4 run through the manhole on base 5 and the groove on slide block 9 from top to bottom respectively; Wherein the first nut 1 and the 3rd nut 10 respectively with the two ends threaded engagement of the first screw rod 2, thus base 5 and slide block 9 are fixed on the post portion of the first screw rod 2; Second nut 3 and the 4th nut 12 respectively with the two ends threaded engagement of the second screw rod 4, thus base 5 and slide block 9 are fixed on the post portion of the second screw rod 4.
Protector comprises sheath 7 and shell fragment 8, and shell fragment 8 is arranged between the space of base 5 and slide block 9, and its one end is connected with the round thread through hole whorl of two on slide block 9 with the second screw 13 by the first screw 11, with base 5 without being connected, only keeps being slidably matched; The other end (one end away from coordinating with slide block 9) of shell fragment 8 is embedded with sheath 7.
Carriage comprises slide block 9, second spring 14 and the first spring 16; First spring 16 is connected with the second screw 13 with the first screw 11 with one end of the second spring 14, and the first spring 16 keeps vertical with the first screw 11 with the axis of the second screw 13 with the axis of the second spring 14, the other end of the first spring 16 and the second spring 14 be connected with the second limited block 15 with the first limited block 17 respectively; First limited block 17 and the second limited block 15 are arranged on the lower surface of base 5.
The present invention has two frees degree.
First, the width of two grooves on slide block 9 is greater than the diameter of the first screw rod 2 and the second screw rod 4, the post portion of the first screw rod 2 and the second screw rod 4 can along the groove horizontal slip on slide block 9, and the first screw rod 2 and the second screw rod 4 are fixedly connected with base 5, do not have the change of relative position.Like this, slide block 9 and base 5 are not fixed in the horizontal direction, can produce the motion of horizontal direction.First screw 11 is connected with the first spring 16 one end with the second spring 14 with the second screw 13 simultaneously, the motion of its horizontal direction is limited by the pulling force of the first spring 16 and the second spring 14, only have the extraneous active force promoting slide block be greater than the first spring 16 and the second spring 14 pulling force and, could produce slide block 9 and base 5 relative motion in the horizontal direction.After the active force promoting slide block when the external world disappears, slide block 9 returns to original position with the horizontal relative position of base 5, that is: the first spring 16 and the second spring 14 pulling force and be zero position.
Secondly, sheath 7 is by after active force vertically downward, and pressure can pass to shell fragment 8, causes shell fragment 8 to be bent downwardly distortion.Continuing to press down sheath 7 can make the top of sheath 7 lower than the low side of blade 6.After the downward active force being applied to sheath 7 disappears, shell fragment 8 returns to original state, and the effect of the protection edge of a knife, higher than the top of blade 6, is played in the top of sheath 7.
In conjunction with two frees degree, when sheath 7 is subject to active force downward sideling time, this pressure can decomposition level component and vertical component.The level of force component applied causes slide block 9 to slide towards the side away from blade 6.Vertical component causes the top of sheath 7 lower than the low side of blade 6.Because slide block 9 is fixed with one end of shell fragment 8.The horizontal movement of slide block 9 can be delivered to sheath 7, makes sheath 7 not only create the motion of vertical direction, and creates the motion of horizontal direction.
Described on end, when sheath 7 is subject to active force downward sideling time, sheath 7 can move to the oblique below of blade 6, the edge of a knife of blade 6 is exposed completely, is no longer subject to the protection of sheath 7, with reference to figure 2 (b).After external forces disappears, sheath 7 returns to original position, and protection blade 6, with reference to figure 2 (a).
A using method for the two-freedom mechanical protection mechanism of cutting off tool, specific as follows:
Step 1., as shown in Fig. 3 (a), the cutting part of part to be cut is aimed at the edge of a knife of blade 6, but because sheath 7 is positioned at the front end of blade 6, first part to be cut contacts sheath 7;
Step 2., as shown in Fig. 3 (b), utilizes the tension force of part to be cut to apply active force obliquely to sheath 7, and active force will force sheath 7 to depart from blade 6, and then, downward, inside both direction bounces back, thus produces the motion of two-freedom; Do not have the obstruction of sheath 7, the edge of a knife of blade 6 can insert part to be cut;
Step 3. is as shown in Fig. 3 (c), and after part to be cut is cut off by blade 6, the tension force of part to be cut disappears; can not continue sideling to pressing down sheath 7; sheath 7, under the screen resilience effect of shell fragment 8, first spring 16 and the second spring 14, returns to original position, continues protection blade 6.
The function of described sheath 7 be isolation blade 6 directly and extraneous contact, can ensure that blade 6 does not cut to the health of other objects or operator.Press sheath 7 except non-user has a mind tiltedly, otherwise sheath 7 serves well isolation blade 6 and extraneous contact.In fact, the key effect of sheath 7 has two aspects: on the one hand, and it ensures that blade 6 is not by external object coup injury; On the other hand, the safety of user and non-cutting object is ensured.
Of the present inventionly usefully to be described as follows: the tool guard with two-freedom have employed the frame for movement of 100%, and structure is simple, reliable; Do not need the automatics based on electronic device, avoid the use of electric wiring and motor; Simple to operate, do not need to add operational motion; Cutter automatic protection functions do not hinder the normal use of cutter.
The present invention is applicable to cutter protection and user's safeguard protection of multiple cutting technique.Cutting material comprises: various plastics, cotton, yarn, felt, PVC etc.
Claims (3)
1. a two-freedom mechanical protection mechanism for cutting off tool, is characterized in that comprising cutter, connector, protector and carriage; Protector is fixedly connected on one end of carriage, and cutter is slidably connected by connector and carriage; Protector is by the horizontal slip of carriage counter-knife;
Cutter comprises base and blade, and blade is arranged on a side of base, horizontally disposed with base; Base is furnished with two manholes, arranged direction is parallel with the edge of a knife face of base;
Connector comprises the first nut, the first screw rod, the second nut, the second screw rod, the 3rd nut, the 4th nut; Slide block is arranged on the below of base, and leaves space between slide block and base; Slide block is furnished with groove and two round thread through holes of two strips, and groove on slide block is corresponding with the manhole on base arranges, two round thread through holes simultaneously on slide block are arranged on one end of two grooves, and with groove not on the same line; First screw rod and the second screw rod run through the manhole on base and the groove on slide block from top to bottom respectively; Wherein the first nut and the 3rd nut respectively with the two ends threaded engagement of the first screw rod, thus base and slide block are fixed on the post portion of the first screw rod; Second nut and the 4th nut respectively with the two ends threaded engagement of the second screw rod, thus base and slide block are fixed on the post portion of the second screw rod;
Protector comprises sheath and shell fragment, and shell fragment is arranged between base and the space of slide block, and its one end is connected with the round thread through hole whorl of two on slide block with the second screw, with base without being connected by the first screw; The other end of shell fragment is embedded with sheath;
Carriage comprises slide block, the second spring and the first spring; First spring is connected with the second screw with the first screw respectively with one end of the second spring, and the first spring keeps vertical with the first screw with the axis of the second screw respectively with the axis of the second spring, the other end of the first spring and the second spring be connected with the second limited block with the first limited block respectively; First limited block and the second limited block are arranged on the lower surface of base.
2. the two-freedom mechanical protection mechanism of a kind of cutting off tool as claimed in claim 1, is characterized in that:
The width of two grooves on slide block is greater than the diameter of the first screw rod and the second screw rod, the post portion of the first screw rod and the second screw rod can along the groove horizontal slip on slide block, and the first screw rod and the second screw rod are fixedly connected with base, there is no the change of relative position; First screw is connected with the first spring one end with the second spring with the second screw simultaneously, the motion of its horizontal direction is limited by the pulling force of the first spring and the second spring, when external force promote the active force of slide block be greater than the first spring and the second spring pulling force and, produce slide block and base relative motion in the horizontal direction; After external force promotes the active force disappearance of slide block, the horizontal relative position of slide block and base returns to original position.
3. the using method of the two-freedom mechanical protection mechanism of a kind of cutting off tool as claimed in claim 1, is characterized in that comprising the steps:
The cutting part of part to be cut is aimed at the edge of a knife of blade by step 1., and because sheath is positioned at the front end of blade, first part to be cut contacts sheath;
Step 2. utilizes the tension force of part to be cut to apply active force obliquely to sheath, and active force will force sheath exit blade, and then, downward, inside both direction bounces back, thus produces the motion of two-freedom; Do not have the obstruction of sheath, the edge of a knife of blade can insert part to be cut;
Step 3. is after part to be cut is cut off by blade, and the tension force of part to be cut disappears, and can not continue sideling to pressing down sheath, sheath, under the screen resilience effect of shell fragment, the first spring and the second spring, returns to original position, continues protection blade.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410100030.XA CN103846958B (en) | 2014-03-18 | 2014-03-18 | A kind of two-freedom mechanical protection mechanism of cutting off tool and using method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410100030.XA CN103846958B (en) | 2014-03-18 | 2014-03-18 | A kind of two-freedom mechanical protection mechanism of cutting off tool and using method thereof |
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| CN103846958A CN103846958A (en) | 2014-06-11 |
| CN103846958B true CN103846958B (en) | 2015-12-09 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105105417B (en) * | 2015-09-14 | 2017-04-05 | 苏州华策纺织科技有限公司 | A kind of footwear material bead cutter with protection mechanism |
| CN107199591A (en) * | 2017-01-22 | 2017-09-26 | 杭州鼎巅科技有限公司 | A kind of fast-assembling cutting tool and application method with multiple degrees of freedom protection structure |
| CN109296926B (en) * | 2018-11-30 | 2024-02-06 | 重庆海装风电工程技术有限公司 | Anti-pinch device |
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| US4769912A (en) * | 1984-12-20 | 1988-09-13 | Shirley Institute | Knife with acceleration sensor |
| EP0963820A1 (en) * | 1998-06-11 | 1999-12-15 | MARTOR-ARGENTAX E.H. Beermann KG | Knife |
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Denomination of invention: A two degree of freedom mechanical protection mechanism for cutting tool and its application method Effective date of registration: 20211126 Granted publication date: 20151209 Pledgee: Taozhu sub branch of Zhejiang Zhuji Rural Commercial Bank Co., Ltd Pledgor: ZHUJI CANU AUTOMATION EQUIPMENT CO.,LTD. Registration number: Y2021980013215 |