CN205325299U - Scissors mechanism's automatic tool changer - Google Patents

Scissors mechanism's automatic tool changer Download PDF

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Publication number
CN205325299U
CN205325299U CN201620037642.3U CN201620037642U CN205325299U CN 205325299 U CN205325299 U CN 205325299U CN 201620037642 U CN201620037642 U CN 201620037642U CN 205325299 U CN205325299 U CN 205325299U
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CN
China
Prior art keywords
tool changer
automatic tool
transmission case
scissors mechanism
motor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn - After Issue
Application number
CN201620037642.3U
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Chinese (zh)
Inventor
李翔
牛小东
赵艳春
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Shantou University
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Shantou University
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Publication date
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Priority to CN201620037642.3U priority Critical patent/CN205325299U/en
Application granted granted Critical
Publication of CN205325299U publication Critical patent/CN205325299U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a numerical control machining center's automatic tool changer especially relates to a scissors mechanism's automatic tool changer. A scissors mechanism's automatic tool changer, automatic tool changer includes transmission case, mechanical jack catch, telescopic machanism, rotary mechanism and elevating system, telescopic machanism combines the other part to realize the flexible function of mechanical jack catch by scissors mechanism, and the transmission case of deuterogamying, rotary mechanism and elevating system are realized that it is rotatory and is gone up and down. Compared with the prior art, the utility model discloses compact structure, have good interchangeability, can realize modularization, seriation and rapid design, adapt to various machining center's tool changing environment, through reducing the non - cutting time of tool changing time contraction to improve numerical control machining center's work efficiency. Because its good interchangeability, also can reduce automatic tool changer's later maintenance cost.

Description

A kind of automatic tool changer of scissors mechanism
Technical field
This utility model relates to the automatic tool changer of a kind of numerical control machining center, especially relates to the automatic tool changer of a kind of scissors mechanism。
Background technology
Automatic tool changer is used to realize the machining center automation equipment of cutter transmission and handling between machine tool chief axis and tool magazine, generally can be classified into the tool changing mode of mechanical hand according to tool changing mode and be completed the mechanical hands tool changing of tool changing action by the relative motion of tool magazine Yu machine tool chief axis。Automatic tool changer is an important auxiliary device of numerical control machining center, it primarily serves the purpose of the non-cutting time shortened in the course of processing, reduce labor strength, working (machining) efficiency and the suface processing quality of workpiece are all had certain impact by the tool change time of automatic tool changer, Stability and dependability, are the advanced important symbols weighing numerical control machining center。Therefore research and improvement automatic tool changer, be significant to the research and development of numerical control machining center。
In the automatic tool changer of current numerical control machining center, mechanical hand tool changing mode apply the most general。By tool-changing mechanical arm, the cutter in tool magazine is delivered on main shaft, and main shaft needing the cutter changed send tool magazine back to。Automatic tool changer machinery hands conventional at present has single arm type mechanical hand, double-arm mechanical hand, pendulum blade mechanical hand。Although these several tool changing devices can shorten tool change time, but its frame for movement is also more complicated, and cost is higher, and environment be there are certain requirements, and interchangeability is poor。
Utility model content
The problems such as the purpose of this utility model is in that to provide the automatic tool changer of a kind of scissors mechanism, solves prior art complicated in mechanical structure, design and the cost of overhaul high, interchangeability difference。
In order to realize above-mentioned purpose, adopt the following technical scheme that:
A kind of automatic tool changer of scissors mechanism, described automatic tool changer includes transmission case, mechanical claw, telescoping mechanism, rotating mechanism and elevating mechanism, described transmission case is provided above with positioning guide rail and locating channel, described telescoping mechanism includes scissors mechanism, control slide block and motor, described scissors mechanism is arranged on described positioning guide rail, scissors mechanism two ends connect mechanical claw, middle hinged pivot pin connects control slide block, described control slide block is arranged on the locating channel of transmission case and is connected with motor, it is internal that described motor is arranged in transmission case, described rotating mechanism is arranged on below transmission case, fix with transmission case and be connected, described elevating mechanism is arranged on below rotating mechanism, it is connected with rotating mechanism。
Mechanical claw is used for realizing capturing tool function, by scissors mechanism, the combination controlling slide block, motor, the positioning guide rail being arranged above with along transmission case and locating channel, realize stretching out and capturing function of automatic tool changer, rotating mechanism realizes rotating by electric rotating machine, elevating mechanism connects realization lifting by lifting motor and pinion and rack, and elevating mechanism and rotating mechanism realize drawing sword and tool changing action of automatic tool changer respectively。The stretching out and capture the action of cutter and realized by scissors mechanism simultaneously of claw in exchanging knives process, each Motor execution parts of this utility model are independently。If going wrong in practical operation, Quick overhaul can be carried out, each Motor execution parts which part corresponding goes wrong, then have only to change appropriate section, the parts such as scissor parts were then checked as expanding-contracting action loses efficacy, spinning movement was lost efficacy and was then changed rotating mechanism, and lifting action lost efficacy and then changes elevating mechanism。
Further, described mechanical claw is arranged above with pressure transducer, and pressure transducer can feed back pressure size during mechanical claw crawl cutter, thus controlling the crawl dynamics of mechanical claw。
Further, described motor is motor or servomotor。
Automatic tool changer of the present utility model can realize modularized design, and method comprises the following steps:
S1 determines position and the angle of mechanical claw by standardized handle of a knife data, the tool rest center of tool magazine and the distance of the alignment of shafts, sets up model, it is determined that the minima l of the effective displacement of elevating mechanism;
S2 measures tool rest plane and the front-end of spindle plane included angle of tool magazine, in order to debug the rotation number of turns n of motor;
S3 determines the line cross point of four claws or the central point of two pairs of claw relative distances by model, chooses scissors mechanism fulcrum number m from midpoint to side, it is determined that the diameter of 2m fulcrum and the bar of 4m scissors rod are long, so that it is determined that its track parameters;
S4 assembles, and designs its control program by PLC。
Wherein, in described step S1, the tool rest center of tool magazine and the distance of the alignment of shafts need actual measurement to draw, its range of error is less than 0.001m。
Further, in described step S2, the revolution of motor is determined by two numerical value of gear ratio between tool rest plane and front-end of spindle plane included angle, motor and the control slide block of tool magazine。
Further, in described step S3, the number of scissors rod is the twice of total fulcrum number, is four times of scissors mechanism fulcrum number from midpoint to side。
Advantage of the present utility model and effect be:
1. the automatic tool changer that this utility model provides, the stretching out and captures the action of cutter and realized by a scissors mechanism simultaneously of claw in its exchanging knives process, and each Motor execution parts are independently, convenient maintenance and maintenance;
2. the automatic tool changer that this utility model provides, the various working environments such as working environment without particular/special requirement, is suitable for acid and alkali corrosion environment by it, dust atmosphere;
3. the automatic tool changer that this utility model provides, it is possible to be substantially reduced design and the cost of overhaul of automatic tool changer, shortens the R&D cycle of product, and cheap;Being shortened by the tool change time of numerical control machining center, reducing the non-cutting time, thus adding the working (machining) efficiency of machining center。
Compared with prior art, this utility model compact conformation, there is good interchangeability, modularity can be realized, seriation and quickly designing, adapting to the tool changing environment of various machining center, shortening the non-cutting time by reducing tool change time, thus improving the work efficiency of numerical control machining center。Due to the interchangeability that it is good, it is also possible to reduce the later maintenance cost of automatic tool changer。
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is PLC external cabling schematic diagram of the present utility model;
Fig. 3 is control flow schematic diagram of the present utility model。
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model will be further described。
As shown in Figure 1, a kind of automatic tool changer of scissors mechanism, described automatic tool changer includes transmission case 1, mechanical claw 2, telescoping mechanism, rotating mechanism 4 and elevating mechanism 5, transmission case 1 is provided above with positioning guide rail 11 and locating channel 12, telescoping mechanism includes scissors mechanism 31, control slide block 32 and motor, scissors mechanism 31 is arranged on positioning guide rail 11, scissors mechanism 31 two ends connect mechanical claw 2, mechanical claw 2 is provided above with pressure transducer 21, hinged pivot pin in the middle of Jian Cha mechanism 31 connects control slide block 32, control slide block 32 be arranged on the locating channel 12 of transmission case 1 and be connected with motor, motor is arranged on the inner inside of transmission case 1 (in figure no display), rotating mechanism 4 is arranged on below transmission case 1, fix with transmission case 1 and be connected, elevating mechanism 5 is arranged on below rotating mechanism 4, it is connected with rotating mechanism 4。
Above-mentioned automatic tool changer, it is possible to according to different processing needs, the method quickly designing this device:
The first step: determined position and the angle of mechanical claw by standardized handle of a knife data, the tool rest center of tool magazine and the distance of the alignment of shafts, set up model, it is determined that the minima l of the effective displacement of elevating mechanism;
Second step: measure tool rest plane and the front-end of spindle plane included angle of tool magazine, in order to debug the rotation number of turns n of motor;
3rd step: determined the line cross point of four claws or the central point of two pairs of claw relative distances by model, chooses scissors mechanism fulcrum number m from midpoint to side, it is determined that the diameter of 2m fulcrum and the bar of 4m scissors rod are long, so that it is determined that its track parameters。The number of scissors rod is the twice of total fulcrum number, is four times of scissors mechanism fulcrum number from midpoint to side;
4th step: assembling, assembling schematic diagram is as shown in Figure 2;
5th step: carrying out external cabling external cabling by PLC, PLC external cabling schematic diagram is as shown in Figure 2。
Automatic tool changer its PLC control program of control flow Schematic design according to Fig. 3, first warrant stop of spindle, magazine knife-selecting, then automatic tool changer successively by grabbing cutter, draw sword, tool changing, four actions of slotting tool realize tool changing, last automatic tool changer resets, and prepares tool changing action next time。

Claims (3)

1. the automatic tool changer of a scissors mechanism, it is characterized in that, described automatic tool changer includes transmission case, mechanical claw, telescoping mechanism, rotating mechanism and elevating mechanism, described transmission case is provided above with positioning guide rail and locating channel, described telescoping mechanism includes scissors mechanism, control slide block and motor, described scissors mechanism is arranged on described positioning guide rail, scissors mechanism two ends connect mechanical claw, middle hinged pivot pin connects control slide block, described control slide block is arranged on the locating channel of transmission case and is connected with motor, it is internal that described motor is arranged in transmission case, described rotating mechanism is arranged on below transmission case, fix with transmission case and be connected, described elevating mechanism is arranged on below rotating mechanism, it is connected with rotating mechanism。
2. automatic tool changer according to claim 1, it is characterised in that described mechanical claw is arranged above with pressure transducer。
3. automatic tool changer according to claim 1, it is characterised in that described motor is motor or servomotor。
CN201620037642.3U 2016-01-15 2016-01-15 Scissors mechanism's automatic tool changer Withdrawn - After Issue CN205325299U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620037642.3U CN205325299U (en) 2016-01-15 2016-01-15 Scissors mechanism's automatic tool changer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620037642.3U CN205325299U (en) 2016-01-15 2016-01-15 Scissors mechanism's automatic tool changer

Publications (1)

Publication Number Publication Date
CN205325299U true CN205325299U (en) 2016-06-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620037642.3U Withdrawn - After Issue CN205325299U (en) 2016-01-15 2016-01-15 Scissors mechanism's automatic tool changer

Country Status (1)

Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105563194A (en) * 2016-01-15 2016-05-11 汕头大学 Automatic tool changer for scissor-fork mechanism and modularized design method for automatic tool changer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105563194A (en) * 2016-01-15 2016-05-11 汕头大学 Automatic tool changer for scissor-fork mechanism and modularized design method for automatic tool changer
CN105563194B (en) * 2016-01-15 2018-07-20 汕头大学 A kind of automatic tool changer of scissors mechanism and its modular design method

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AV01 Patent right actively abandoned

Granted publication date: 20160622

Effective date of abandoning: 20180720

AV01 Patent right actively abandoned