CN2242749Y - General spring grip-hold automatic tool-changing system special for numerical control machine tool - Google Patents
General spring grip-hold automatic tool-changing system special for numerical control machine tool Download PDFInfo
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- CN2242749Y CN2242749Y CN 95217440 CN95217440U CN2242749Y CN 2242749 Y CN2242749 Y CN 2242749Y CN 95217440 CN95217440 CN 95217440 CN 95217440 U CN95217440 U CN 95217440U CN 2242749 Y CN2242749 Y CN 2242749Y
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- spanner
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- mechanical arm
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Abstract
The utility model relates to a special general spring grip-hold automatic tool-changing system for numerical control machine tools, composed of a tool-changing manipulator, a tool magazine and a control unit. The utility model is an automatic tool-changing system which simulates the tool-changing actions of hands to change tools under the condition that the spindle and the spring chuck of a machine tool is not changed, the tool-changing system has the functions of large clamping force, constant (adjustable) clamping force, rotation angle compensating and automatic reset and can satisfy the operational requirements of small too changing space; through an array or a rotary tool magazine with consistent and concordant actions and the control supervisor of a microcomputer, the utility model realize the overall process of automatic tool change.
Description
The special-purpose common collet automatic tool changer of Digit Control Machine Tool of the present utility model belongs to mechanical field, relates in particular to a kind of automatic tool changer of Digit Control Machine Tool.
The at present domestic pass processing of generally using Digit Control Machine Tool to carry out printed circuit board (PCB); when circuit board requires than complexity to pass, aperture; the drill bit of this lathe, the replacing of milling cutter tool are just very frequent; usually all adopt the artificial mode of changing cutter of shutting down; it is bothersome consuming time, the need of incompatibility automation, high efficiency modern factories production.Some existing employing hydraulic pressure, pneumatic or electromagnetic drive mode carry out the device of automatic tool changer, though holding action comes simply, but in order to adapt to the requirement of clamping cutter, electric machine main shaft and collet structure are wanted the corresponding bigger change of making, also to set up hydraulic pressure, pneumatic or Electromagnetic Drive and control components and parts, carry out interface processing etc., make the lathe cost rise significantly, be unsuitable for promoting the use of.
The purpose of this utility model is will provide a kind of to be intended to electric machine main shaft and collet are not done under the situation of change, only add the automatic tool changer that a cover is made up of tool-changing mechanical arm, tool magazine and control module by dress on lathe, just can simulate the tool changing action of staff fully, in the operating space of about 20mm only, realize automatic tool changer accurately and reliably apace on collet and the electric machine main shaft.
The purpose of this utility model is achieved by following scheme: automatic tool changer partly is made of tool-changing mechanical arm, tool magazine and control module three.Tool-changing mechanical arm is made up of upper and lower spanner, under the effect of control circuit and driving transmission components and parts, upper and lower spanner can be simulated staff tool changing action, clamp respectively on the electric machine main shaft that former six sides carry out relative turn on the former flat side and collet, to clamp or to discharge the cutter of the collet of having packed into.Tool magazine is made up of the knife rest of several discrete arrangements, each knife rest loads a kind of cutter, under the instruction of control module, knife rest can hold up cutter to be installed and send into collet, and the relative rotation by two mechanical spanners clamps cutter, perhaps via manipulator in opposite directions turn electric machine main shaft and collet cutter is discharged, from collet, take out cutter to be unloaded by knife rest.So, can be implemented under the instruction of control module, provide cutter to be installed or reception to change cutter by tool magazine, by tool-changing mechanical arm screw or the pull-off spring chuck finishing the action that clamps or discharge cutter, thereby realize the automation mechanized operation of cutter loading and unloading.
Owing to adopt above-mentioned scheme, just make the utility model in narrow and small operating space, can realize automatic tool changer accurately and reliably apace, the increase of lathe cost is very little, and operating efficiency improves greatly.
Concrete structure of the present utility model is provided by following embodiment and accompanying drawing thereof.
Fig. 1 is that front view Fig. 2 of tool-changing mechanical arm of the present utility model is that top view Fig. 3 of tool-changing mechanical arm of the present utility model is that the schematic diagram Fig. 4 of spanner in the tool-changing mechanical arm of the present utility model is that the driving mechanism schematic diagram Fig. 5 of spanner in the tool-changing mechanical arm of the present utility model is that electric machine main shaft mouse dental structure schematic diagram Fig. 6 of the present utility model is that tool magazine intermediate slide front view Fig. 7 of the present utility model is that tool magazine intermediate slide top view Fig. 8 of the present utility model is that the utility model array type tool magazine automatic tool changer structural representation Fig. 9 is that the utility model swinging tool magazine automatic tool changer structural representation Figure 10 is that the utility model modified tool-changing mechanical arm front view Figure 11 is the utility model modified tool-changing mechanical arm top view
Below in conjunction with drawings and Examples the utility model is further specified.
Tool-changing mechanical arm is a core of the present utility model, and it is installed on the bed piece of platen one side, and concrete structure is shown in Fig. 1-4.It is made up of last spanner (1), following spanner (2), driving transmission components and parts and control circuit.Shown in figure three, last spanner (1), following spanner (2) adopt same structure, constitute by spanner body (16), jaw (17), U sections (18), flexible axle (0), extension spring (19), be provided with steel wire (41) in the flexible axle (0), steel wire (41) one ends are connected with U sections (18), and the other end contacts with the active lever (20) that the moving bar of electromagnet (21) shown in Figure 4 links to each other.During electromagnet (21) adhesive, steel wire (41) in the flexible axle (0) by active lever (20) thereby pushing makes the U sections (18) that links to each other with steel wire (41) among Fig. 3 be subjected to pushing tow along the slotting outer of the gathering sill in the spanner body (16) to jaw (17), make the jaw closure, finish holding action; When electromagnet (21) discharged, the steel wire (41) in the flexible axle (0) resetted, thus pulling U sections (18) return and reset, under the answer of extension spring (19), jaw (17) opens, the cancellation clamp position.The jaw of last spanner (1) is used for the flat side on the clamping electric machine main shaft, and the jaw of following spanner (2) is used for six sides on the clamp springs chuck.The opening and closing movement of two jaws of last spanner (1) and following spanner (2) is controlled by same solenoid actuated mechanism, only need active lever (20) on the electromagnet (21) and steel wire (41) contact position bifurcated, two bifurcateds that make active lever (20) contact with two steel wires in two flexible axles respectively, again two flexible axles are linked to each other with upper and lower spanner respectively, can realize this control.As shown in Figure 1, 2, following spanner (2) is fixed on the bottom plate (3), and last spanner (1) is connected with gear ring (5), and gear ring (5) is sleeved on hollow shaft (6) upward also can be around its turn, and hollow shaft (6) is fixed on the mounting plate (4).Drive motors (10) plays spanner (2) turn relatively by spanner (1) in leading screw (8), nut slider (9) tooth bar (7), gear ring (5) driving.Because the boosting function of screw pair can make spanner (1), produce the rotating torque that is enough to make the collet clamp-on tool between the spanner (2) down.Stage clip (11) is used for providing an adjustable link of moment to last spanner (1), promptly adjust the reduction length of stage clip (11) by the relative position of adjusting spacing button (12) and nut slider (9) upper contact, just can reach the size of the clamping force of adjusting collet clamping cutter, thereby can make the clamping force size not only adjustable but also can keep constant.Whole tool-changing mechanical arm on Digit Control Machine Tool the installation site and structure as shown in Figure 8, the jaw position of the last spanner (1) of manipulator is mutually concordant with the flat location on the electric machine main shaft, following spanner (2) jaw position is mutually concordant with six location on the collet.Mounting plate in the manipulator (4), bottom plate (3), gear ring (5), hollow shaft (6) are all left breach in the side in the face of electric machine main shaft, so that during tool changing, electric machine main shaft enters in the jaw in the upper and lower spanner promptly predetermined tool change position (34) along the lathe directions X that sets among the figure and locates.Because when entering predetermined tool change position (34) after electric machine main shaft stops, flat location on it is at random, therefore when the relative turn of upper and lower spanner, when making the clamping force of collet clamping cutter reach predetermined value, relative rotation between two spanners also is at random, the good engagement of flat side's tool that is held the position for the jaw that makes spanner (1) and main shaft, reduce the random deviation of the relative rotation between two spanners, be made into mouse dental structure (22) in the former flat quadrate part of main shaft position or at flat location place suit segment mouse teething ring (23), its structure as shown in Figure 5.On, the definite of the following spanner relative rotation number of degrees can adopt manual mode to finish: clamp electric machine main shaft with a wrench earlier, is the lower position with another wrench pull-off spring chuck to making the drill bit free-falling, oppositely the energizing spring chuck is upper limit position to drill bit is clamped reliably then, record on two wrench of clamp springs head, gyration between the lower position is in 60 degree, consider, the jaw of following spanner and collet six sides, factors such as hard-over deviation after the mouse dental structure (22) of electric machine main shaft or mouse teething ring (23) correct engagement and drive gap, this gyration is got 100 degree, determines the meshing length and the engagement position of tooth bar (7) and gear ring (5) in view of the above.Because the jaw of last spanner (1) is after clamping drill bit and reaching predetermined clamping force, its final resting position is at random, thereby the jaw opening part of going up spanner (1) is often not consistent with the breach direction of the breach of the breach of following spanner (2) jaw opening part, mounting plate (4), bottom plate (3), hollow shaft (6), makes electric machine main shaft can't withdraw from or enter predetermined tool change position (34) when tool changing.For this reason, as shown in Figure 2, spanner (1) zero-bit contact switch (13) must be set on mounting plate (4).For making spanner possess automatically reset function, also must can judge rightly on the logical relation and control the direction that resets by control module.In addition, on mounting plate (4), also need to be provided with spanner and loosen travel switch that puts in place (15) and limit protection travel switch (14).Tool magazine is installed in a side of platen, be positioned at the tool-changing mechanical arm lower position, tool magazine is made up of some discrete knife rests, each knife rest loads a kind of cutter, knife rest is left towards electric machine main shaft one side can make the breach of cutter traverse to turnover, the jaw center of the last spanner (1) of tool-changing mechanical arm, time spanner (2) will with the strict upper, middle and lower of the center three centering of that knife rest of waiting to load and unload cutter.Structure between tool magazine, manipulator, electric machine main shaft, collet, the platen and position are as shown in Figure 8.As Fig. 6, shown in Figure 7, knife rest is made of with elasticity folder (32) tool-post structure (30), the location v block (31) that is installed in the tool-post structure (30), location V shape iron (31) and elasticity press from both sides (32) can be in tool-post structure (30) free lifting.(28) be the prominent edge at tool shank place, all be arranged on shank fixed length position, all identical with the length that guarantees collet clamping cutter.The electromagnetic drive mechanism of knife rest is installed on the bed piece, is positioned under the tool-changing mechanical arm, and is corresponding substantially with the horizontal level of knife rest.As shown in Figure 6, behind electromagnetic actuation, steel wire (41) in the flexible axle that links to each other with electromagnet (0) and the push rod (29) that links to each other with steel wire (41) other end are under its act holder, and interior location V shape iron (31), the elasticity of knife rest (30) is pressed from both sides (32) on the cutter that is held rises from tool-post structure (30); Otherwise electromagnet discharges, and push rod (29) resets under the return action of stage clip (27), and location V shape iron (31) elasticity folder (32) falls back on the knife rest together with the cutter that is clamped between them.
The control module of native system by the main control system of existing Digit Control Machine Tool according to the determined logic manage formula of automatic tool changer, work out out control corresponding software and adopt the enforcement operation, it can be made the logic judgement to the exercises of tool-changing mechanical arm and tool magazine and provide instruction.
This automatic tool changer, during according to original program tool changing, control module provides instruction, electric machine main shaft stops---and electric machine of numerically controlled machine drives platen and moves along lathe Y direction, move with the tool magazine that workbench connects mutually thereupon, wait to accept to change the accurately arrival and last of knife rest of cutter in the tool magazine, electric machine main shaft enters along the lathe directions X in the position of the strict centering in following spanner jaw center---location V shape iron (31) and elasticity folder (32) rises in the tool-post structure (30)---, the jaw of following spanner and location V shape iron (31) press from both sides the gripper frame center that (32) are formed with elasticity---on, jaw in the following spanner is closed simultaneously, wherein play spanner (2) jaw to clamp six quadrate part positions on the collet, the jaw of last spanner (1) clamps mouse dental structure (22) or the mouse teething ring (23) on the electric machine main shaft---and motor (10) drives leading screw (8), tooth bar (7), gear ring (5) turn, spanner in the drive (1) is with respect to following spanner (2) turn pull-off spring chuck---location V shape iron (31), elasticity folder (32) thereby and be held cutter and fall after rise and take off that the cutter that will change---platen moves along Y-axis, the tool-post structure at the place of fixing a cutting tool to be installed (30) enters tool change position---location V shape iron (31), elasticity folder (32) clamping cutter to be installed rises from tool-post structure (30) tool shank is headed in the collet---and motor (10) drives leading screw (8), tooth bar (7), gear ring (5) turn, spanner in the drive (1) reaches predetermined value with respect to reverse turn fastening spring chuck to the clamping force of following spanner (2)---on, jaw in the following spanner opens simultaneously---go up spanner (1) return zero-bit---electric machine main shaft, collet, and the new cutter that is held withdraws from the predetermined punch position of arrival---begin punching.
Automatic tool changer of the present utility model; it is big that its manipulator has clamping force; clamping force is adjustable; can keep constant; migrate compensation, automatically reset, function such as limiting protection, can simulate the exercises of staff ring knife tool fully, practical; the automaticity height is the desirable automatic tool changer of the special-purpose common collet of Digit Control Machine Tool.
Be 3 embodiment in addition of the present utility model below:
1, in order further to dwindle the bulk of tool-changing mechanical arm, make it be adapted to harsh more operating space requirement, the rack pinion transmission in the manipulator can change the worm and gear auxiliary driving into, as Figure 10, shown in Figure 11.Under this kind of drive, the detection of clamping force or adjust and can adopt two kinds of methods: 1. can adopt connect firmly piezo-electric crystal together with the worm shaft bearing and amplify accordingly, analog to digital conversion circuit realizes.2. adopt mechanism shown in Figure 11, promptly adopt driving lever (39), buting iron (40), river bend position button (37), extension spring elements such as (38),, make clamping force keep constant with aforementioned similar principle adjustment.
2, in order to adapt in the littler space needs of changing cutter in the collet, tool-changing mechanical arm also can adopt the multi-stage gear transmission, makes super broad type, has the mechanical spanner of elongated handle, and the mechanism similar as Figure 10 realizes automatic tool changer.
3, adopt the tool-changing mechanical arm have the swinging tool magazine that drives positioning function and above-mentioned worm gear, worm-drive mode, use single-chip microcomputer to carry out the control and management of tool changing overall process, the functional type automatic tool changer of independence that is aided with complete Drive and Control Circuit simultaneously as shown in Figure 9, it is except reserving several the connections of getting in touch with host computer, the overall process of tool changing is independently finished by this system, thereby can form broad-spectrum collet automatic tool changer product.
Claims (10)
1, the special-purpose common collet automatic tool changer of a kind of Digit Control Machine Tool is made of tool-changing mechanical arm, tool magazine and control module, it is characterized in that: spanner (1) and following spanner (2) are housed on the tool-changing mechanical arm.
2, the special-purpose common collet automatic tool changer of Digit Control Machine Tool as claimed in claim 1, it is characterized in that: the following spanner (2) of tool-changing mechanical arm is fixed on the bottom plate (3), last spanner (1) is bound up on can be on the gear ring (5) that hollow shaft (6) rotates, hollow shaft (6) connects mutually with mounting plate (4), the strict upper and lower centering in the jaw center of upper and lower spanner.
3, the special-purpose common collet automatic tool changer of Digit Control Machine Tool as claimed in claim 1, it is characterized in that: the spanner up and down of tool-changing mechanical arm all adopts same structure, in the spanner in the openend of U sections (18) along contacting with jaw (17) outer, the interior steel wire (41) of U sections (18) and flexible axle (0) is connected.
4, the special-purpose common collet automatic tool changer of Digit Control Machine Tool as claimed in claim 3 is characterized in that: steel wire (41) other end contacts with the active lever (20) that the moving bar of electromagnet (21) links to each other.
5, the special-purpose common collet automatic tool changer of Digit Control Machine Tool as claimed in claim 1 is characterized in that: be provided with zero-bit contact switch (13) in the tool-changing mechanical arm.
6, the special-purpose common collet automatic tool changer of Digit Control Machine Tool as claimed in claim 1, it is characterized in that: the jaw position of the last spanner (1) of tool-changing mechanical arm is mutually concordant with mouse teething ring (23) position on the electric machine main shaft, and the jaw position of following spanner (2) is mutually concordant with six location of collet.
7, the special-purpose common collet automatic tool changer of Digit Control Machine Tool as claimed in claim 1, it is characterized in that: tool-changing mechanical arm is provided with the spacing button (12) and nut slider (9) of regulating spring chuck clamping force.
8, the special-purpose common collet automatic tool changer of Digit Control Machine Tool as claimed in claim 1, it is characterized in that: tool magazine is made up of discrete knife rest, each knife rest loads a kind of cutter, is provided with liftable location V shape iron (31) and elasticity folder (32) in the tool-post structure (31).
9, the special-purpose common collet automatic tool changer of Digit Control Machine Tool as claimed in claim 1 is characterized in that: bed piece is provided with the electromagnet that can drive location V shape iron (31) and (32) lifting of elasticity folder.
10, the special-purpose common collet automatic tool changer of Digit Control Machine Tool as claimed in claim 1, it is characterized in that: tool-changing mechanical arm also can be finished moment of torsion transmission and clamping force adjustment by worm gear (35), worm screw (36) and gear pair, driving lever (39), buting iron (40), spacing button (37), extension spring (38).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95217440 CN2242749Y (en) | 1995-08-07 | 1995-08-07 | General spring grip-hold automatic tool-changing system special for numerical control machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95217440 CN2242749Y (en) | 1995-08-07 | 1995-08-07 | General spring grip-hold automatic tool-changing system special for numerical control machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2242749Y true CN2242749Y (en) | 1996-12-18 |
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ID=33866255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95217440 Expired - Fee Related CN2242749Y (en) | 1995-08-07 | 1995-08-07 | General spring grip-hold automatic tool-changing system special for numerical control machine tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2242749Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102398065A (en) * | 2011-11-11 | 2012-04-04 | 常州澳弘电子有限公司 | Profile processing method for metal-based circuit board |
| CN102513859A (en) * | 2011-12-20 | 2012-06-27 | 重庆红旗缸盖制造有限公司 | Automobile engine accessory machining tool and auxiliary tool changer thereof |
| CN104259913A (en) * | 2014-08-29 | 2015-01-07 | 许博 | Automatic tool changing device of simple numerical control machine center |
| CN107498366A (en) * | 2016-06-14 | 2017-12-22 | 吉特迈集团机床有限公司 | Processing equipment for lathe |
| CN109465475A (en) * | 2018-11-28 | 2019-03-15 | 张子林 | A kind of heavy duty mill housing bored machine |
| CN109605191A (en) * | 2018-12-28 | 2019-04-12 | 敏实汽车技术研发有限公司 | A kind of automatically grinding system of aluminium profile product |
| CN116619098A (en) * | 2023-04-27 | 2023-08-22 | 冈田智能(江苏)股份有限公司 | Tool magazine manipulator and tool changing device |
-
1995
- 1995-08-07 CN CN 95217440 patent/CN2242749Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102398065A (en) * | 2011-11-11 | 2012-04-04 | 常州澳弘电子有限公司 | Profile processing method for metal-based circuit board |
| CN102513859A (en) * | 2011-12-20 | 2012-06-27 | 重庆红旗缸盖制造有限公司 | Automobile engine accessory machining tool and auxiliary tool changer thereof |
| CN102513859B (en) * | 2011-12-20 | 2015-07-08 | 重庆红旗缸盖制造有限公司 | Automobile engine accessory machining tool and auxiliary tool changer thereof |
| CN104259913A (en) * | 2014-08-29 | 2015-01-07 | 许博 | Automatic tool changing device of simple numerical control machine center |
| CN107498366A (en) * | 2016-06-14 | 2017-12-22 | 吉特迈集团机床有限公司 | Processing equipment for lathe |
| CN107498366B (en) * | 2016-06-14 | 2021-03-30 | 吉特迈集团机床有限公司 | Processing device for machine tool |
| CN109465475A (en) * | 2018-11-28 | 2019-03-15 | 张子林 | A kind of heavy duty mill housing bored machine |
| CN109605191A (en) * | 2018-12-28 | 2019-04-12 | 敏实汽车技术研发有限公司 | A kind of automatically grinding system of aluminium profile product |
| CN116619098A (en) * | 2023-04-27 | 2023-08-22 | 冈田智能(江苏)股份有限公司 | Tool magazine manipulator and tool changing device |
| CN116619098B (en) * | 2023-04-27 | 2023-10-24 | 冈田智能(江苏)股份有限公司 | Tool magazine manipulator and tool changing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |