CN1054564C - Numerical control knife rest with cam positioning device and code disc - Google Patents
Numerical control knife rest with cam positioning device and code disc Download PDFInfo
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- CN1054564C CN1054564C CN98113481A CN98113481A CN1054564C CN 1054564 C CN1054564 C CN 1054564C CN 98113481 A CN98113481 A CN 98113481A CN 98113481 A CN98113481 A CN 98113481A CN 1054564 C CN1054564 C CN 1054564C
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- 230000006835 compression Effects 0.000 description 4
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Abstract
The present invention is an improvement over the prior art. It adopts electromechanical encoder and novel cam positioning mechanism. The mechanical coding disc of the electromechanical encoder is arranged on the speed reducing mechanism; the end face cam of the novel cam positioning mechanism is provided with a profile capable of realizing bidirectional movement of the roller, and the locking end tooth disc is provided with a tooth-shaped groove capable of quickly positioning the roller sleeve, so that the novel cam positioning mechanism has the advantages of reducing impact, realizing bidirectional locking in a positive and negative direction, avoiding repeated start and stop of a motor, along with simple structure, stable performance, long service life and low price.
Description
What the present invention relates to is the numerically-controlled slide that machining equipment is used, particularly the numerically-controlled slide of strap cam positioner and mechanical code-disc.
When a large amount of workpiece are carried out machining, need require same workpiece is sequentially used some cutters according to predetermined degree and automatic control, these cutters all are installed on the numerically-controlled slide rotating disk usually.
Chinese patent discloses a kind of knife rest turntable with Gear Planet Transmission and positioner (application number 88104350.8), and it is measured encoder by body, motor, reducing gear, three one group end tooth precision positioning dish, edge cam clutch positioner and automatically controlled bolt device and angle position and forms.This knife rest turntable positioning accuracy height, anti-dust performance is good, and chucking power is big.But the edge cam clutch positioner of this knife rest turntable must be undertaken by opening-stop-reverse-stop program by motor, and it is big that this knife rest turntable is impacted, and buffer gear must be set, and the goniometry coding structure complexity of this knife rest turntable costs an arm and a leg.
The purpose of this invention is to provide a kind of employing electromechanical encoder and cam orientation mechanism, can reduce impact, positive and negative two-way locking, needn't motor simple in structure, the stable performance, the numerically-controlled slide that the life-span is long, price is low of start-stop repeatedly.
Technical solution of the present invention is: numerically-controlled slide is made up of body, motor, reducing gear, three one group of end-toothed disc, edge cam clutch positioner and automatically controlled bolt devices and electromechanical encoder etc.The periphery sides of the big end in the edge cam (4) in edge cam clutch positioner or (28) is furnished with three or a plurality of roll sleeve (5) or (35), on its inner end face circumference, be provided with three sections or multistage cam contour 4a or 28a, small end in edge cam (4) or (28) is shaped on gear 4b or 28b, be contained in the locking end-toothed disc (7) of edge cam (4) or (28) front or the one side of (29) and be provided with the precision positioning end tooth, another side is provided with and roll sleeve (5) or (35) corresponding serrate slot 7a or 29a, inner end face circumference is provided with and cam contour 4a or the corresponding roller of 28a (6) or (36), and edge cam (4) and locking end-toothed disc (7) all are contained in main shaft (10) with bearing holder (housing, cover) and go up (perhaps edge cam (28) and locking end-toothed disc (29) all are contained on the main shaft (34) with bearing holder (housing, cover)).
Reducing gear can be the gear 3a that is connected together by planet carrier (2) and mechanical coding dish (3), with the gear 4b that edge cam (4) connects together, reaches a plurality of planet pinions (13) and forms.Also can be (25) and formed with gear 28a that edge cam (28) connects together by gear reduction, its mechanical coding dish (26) be installed on the edge cam (28).
The one side of mechanical coding dish (3) or (26) is provided with the projection of many concentric circles of determining by the position of the requirement of binary-coded decimal (8421 yards) and microswitch, and its width is 2-4mm, highly is 2-4mm.
The a plurality of microswitches (20) that are installed on the motor cabinet are formed the binary-coded decimal signalling generator, and an end of push rod (15) or (44) has the one side of the projection of concentric circles to contact with the mechanical coding utensil, and the other end contacts with binary-coded decimal signalling generator microswitch (20).
On the periphery of mechanical coding dish (3), perhaps on capstan head body (27), be provided with just locating hole or groove, its quantity is identical with toolsmith's bit quantity.
Be installed on the center line of the first locating hole of mechanical coding web or groove electronic bolt device parallel main axis, it is by brake (22) or (38), can insert first alignment pin (23) or (41) of first locating hole or groove, just position-sensing switch device (19) or (39) are formed, and they all are installed on motor cabinet (18) or (32).For being 90 ° of ground, the lever (21) that guarantees first alignment pin steady operation or (39) and just alignment pin (23) or (41) are installed in the next door.
Three or more helical spring (11) or (37) all border district that can help to lock end-toothed disc (7) or (29) disengagement are installed on the round end fluted disc (9), perhaps are installed on the stiff end fluted disc (30).
Other structures of the present invention can find out that from drawings and Examples its operation principle is narrated when following drawings and Examples are described.
The present invention have impact little, can positive and negative two-way locking, needn't motor start-stop, simple in structure, stable performance repeatedly, characteristics such as the life-span is long, price is low.
Fig. 1 is the axial section with numerical control horizontal knife rest of horizontal axis of the present invention;
Fig. 2 is the profile along I-I line among Fig. 1;
Fig. 3 is the profile along II-II line among Fig. 1;
Fig. 4 is the profile along III-III line among Fig. 3;
Fig. 5 is the profile along IV-IV line among Fig. 3;
Fig. 6 is that edge cam (4) is gone up several trundles and contacted the situation schematic diagram with locking end-toothed disc (7) when locking end-toothed disc (7) with rotary teeth wheel disc (9), end-toothed disc (8) engagement;
Fig. 7 locks end-toothed disc (7) with rotary teeth wheel disc (9), when end-toothed disc (8) is thrown off, and edge cam (4) is gone up several trundles and contacted the situation schematic diagram with locking end-toothed disc (7);
Fig. 8 is the axial section of vertical numerical control knife rack rotary tower of the present invention;
Fig. 9 is the profile along I-I line among Fig. 8;
Figure 10 is the profile along II-II line among Figure 11;
Figure 11 is the profile along IV-IV III-III line among Fig. 8;
Figure 12 is the profile along III-III line among Fig. 9;
1-motor among the figure, 2-planet carrier, 3-mechanical coding dish, 4-edge cam, the 5-roll sleeve, the 6-roller, 7-locks end-toothed disc, 8-stiff end fluted disc, 9-round end fluted disc, 10-main shaft, 11-cylindrical spring, 12-casing, the 13-planet, 14-butterfly spring, 15-push rod, 17-primary election signal microswitch, the 18-motor cabinet, 20-BCD code switch group, 21-lever, 22-brake, 23-is fastening screw just, 24-motor, 25-gear train, 26-mechanical coding dish, 27-capstan head body, the 28-edge cam, 29-locks end-toothed disc, 30-stiff end fluted disc, 31-end-toothed disc, 32-motor cabinet, the 33-butterfly spring, 34-main shaft, 35-roll sleeve, the 36-roller, 37-cylindrical spring, 38-brake, the 39-lever, the 40-spring, 41-is alignment pin just, 42-BCD code switch group, 43-primary election signal microswitch, 44-push rod.
Shown in Fig. 1,2,3,5,6, motor (1) driven gear planet carrier (2) rotation, several compound planet gears (13) that are contained on the gear planet carrier (2) rotate (this moment, this this gear was a sun gear) round the gear 3a on the mechanical coding dish (3), and drive end face cam (4) rotates.Several cam contours 4a on the edge cam (4) descends along several rollers (6), and the disk spring (14) of compression is loosened, brake (22) outage simultaneously, and first alignment pin (23) is upspring.Locking end-toothed disc (7) is under several cylindrical helical springs (11) effect, move backward (because of locking end-toothed disc (7) is connected with casing 12 with feather key, so can not rotate), and throw off with stiff end fluted disc (8), round end fluted disc (9) rapidly, lock several serrate slots 7a and the engagement of several trundles (5) on the edge cam (4) on the end-toothed disc simultaneously, edge cam (4) is pinned.Gear planet carrier (2) continues rotation, several compound planet gears (13) at this moment rotate around the gear 4a on the edge cam (4), (this moment 4b be sun gear), driven wheel 3a, mechanical coding dish (3) rotated simultaneously, and by main shaft (10) driven rotary end-toothed disc (9) and be fixed on the knife rest rotating disk (not shown) rotation of round end fluted disc (9).
As Fig. 1, shown in 2,3, microswitch group (20) drives push rod (15) by the circular-arc raised line on the mechanical coding dish (3) and outwards exports 8421 yards signal.Microswitch closure when selected cutter spacing, with and the microswitch (17) of gating during closed moment, brake (22), handling just, alignment pin (23) inserts forward in the groove of mechanical coding disk (3), mechanical coding dish (3) stops operating, and by main shaft (10) round end fluted disc (9) and knife rest rotating disk is also stopped operating simultaneously.
At this moment gear planet carrier (2) continues rotation, several compound planet gears (13) are around the gear 3a rotation of mechanical coding dish (3), drive end face cam (4) rotates simultaneously, several trundles (6) on the edge cam (4) roll along several serrate slots in locking end-toothed disc (7), and drive it forward with stiff end fluted disc (8), round end fluted disc (9) engagement locking.The engagement while, several cam contours move compression disk spring (14) after several rollers (6) rise also, at the same time, and motor (1) outage, three one group end-toothed disc (7,8,9) clamping, the locking of knife rest rotating disk.
Shown in Figure 6, roller (6) is on the plan-position, cam top of edge cam (4), and end-toothed disc (7,8,9) is in latched position.
Shown in Figure 7, roller (6) is in the cam extreme lower position of face gear (4), and the trundle (5) of edge cam (4) is in the serrate slot of keyed end fluted disc (7), and end-toothed disc (7,8,9) is in the released position.
Fig. 8 is another kind of embodiment of the present invention.As shown in Figure 8, motor (24) rotates through gear train (25) drive end face cam (28), rolling bearing (36) descends along cam curve, the disk spring (33) of compression loosens, locking end-toothed disc (29) is under helical spring (37) effect, several rollers (36) upwards lift along the cam arc groove, and rapidly with end-toothed disc (31), stiff end fluted disc (30) disengagement; Several rollers (35) of edge cam (28) fall into the serrate slot of locking end-toothed disc (29) end face simultaneously, and edge cam (28) is rotated with locking end-toothed disc (29) and capstan head body (27).
As Fig. 9, shown in 11,12, microswitch group (42) is outwards exported 421 code signals according to the angle that the code-disc (26) that is contained on the face gear (28) changes.When the microswitch closure of selected cutter spacing, with and the microswitch (45) of gating during closed moment, brake (38) electric, first alignment pin (41) is depressed, and with and slip in the first detent on the capstan head body (27), capstan head body (27) is tentatively locked.
As shown in Figure 8, locking end-toothed disc (29) is to adopt spline to be connected with capstan head body (27), locking end-toothed disc (29) can only move axially in capstan head body (27), can not rotate, because capstan head body (27) is locked, edge cam (28) continues rotation, and the little roll sleeve of several on it (35) rolls out along the inclined-plane of locking several serrate slots on end-toothed disc (29) end face, and driving locking end-toothed disc (29) meshes with stiff end fluted disc (30) and end-toothed disc (31) downwards.Several cam contours of edge cam (28) move after several rollers (36) rise, compression disk spring (33).At this simultaneously, the microswitch of locking (43) is once closure, motor (24) outage, and several rollers (36) have been on several plan-positions, cams top of edge cam (28), three one group of end-toothed discs (29,30,31) clamping, capstan head body 27 is accurately locked,
Shown in Figure 10, push rod (44) moves up under the driving of mechanical coding dish (26), with the microswitch closure.
Claims (6)
1. the numerically-controlled slide of strap cam positioner and code-disc is made up of body, motor, reducing gear, three one group of end-toothed disc, edge cam clutch positioner and automatically controlled bolt devices and electromechanical encoder etc.The periphery sides that it is characterized in that the big end in edge cam (4) in edge cam clutch positioner or (28) is furnished with three or a plurality of roll sleeve (5) or (35) and is provided with three sections or multistage cam contour (4a) or (28a) on its inner end face circumference, small end in edge cam (4) or (28) is shaped on gear (4b) or (28b), be contained in the locking end-toothed disc (7) of edge cam (4) or (28) front or the one side of (29) and be provided with the precision positioning end tooth, another side is provided with roll sleeve (5) or (35) corresponding serrate slot (7a) or (29a), inner end face circumference is provided with and cam contour (4a) or (28a) corresponding roller (6) or (36), edge cam (4) and locking end-toothed disc (7) all are contained on the main shaft (10) with bearing holder (housing, cover), and perhaps edge cam (28) and locking end-toothed disc (29) all are contained on the main shaft (34) with bearing holder (housing, cover); Reducing gear can be the gear 3a that is connected together by planet carrier (2) and mechanical coding dish (3), the gear (4b) that connects together with edge cam (4), and a plurality of planet pinions (13) are formed, also can be (25) and form with the gear (28a) that edge cam (28) connects together by gear reduction, its mechanical coding dish (26) be installed on the edge cam (28).
2. the numerically-controlled slide of strap cam positioner according to claim 1 and code-disc, the one side that it is characterized in that mechanical coding dish (3) or (26) is provided with the projection of many concentric circles of determining by the position of the requirement of binary-coded decimal (8421 yards) and microswitch, its width is 2-4mm, highly is 2-4mm.
3. the numerically-controlled slide of strap cam positioner according to claim 1 and 2 and code-disc, the a plurality of microswitches (20) that it is characterized in that being installed on the motor cabinet are formed the binary-coded decimal signalling generator, one end of push rod (15) or (44) has the one side of the projection of concentric circles to contact with the mechanical coding utensil, and the other end contacts with binary-coded decimal signalling generator microswitch (20).
4. the numerically-controlled slide of strap cam positioner according to claim 1 and 2 and code-disc is characterized in that on the periphery of mechanical coding dish (3), perhaps is provided with just locating hole or groove on capstan head body (27), and its quantity is identical with toolsmith's bit quantity.
5. the numerically-controlled slide of strap cam positioner according to claim 1 and 2 and code-disc, be installed on the center line of the first locating hole of mechanical coding web or groove with it is characterized in that electronic bolt device parallel main axis, it is by brake (22) or (38), can insert first alignment pin (23) or (41) of first locating hole or groove, just position-sensing switch device (19) or (39) are formed, and they all are installed on motor cabinet (18) or (32); For being 90 ° of ground, the lever (21) that guarantees first alignment pin steady operation or (39) and just alignment pin (23) or (41) are installed in the next door.
6. the numerically-controlled slide of strap cam positioner according to claim 1 and 2 and code-disc, it is characterized in that three or more helical spring (11) or (37) all border district that can help to lock end-toothed disc (7) or (29) disengagement are installed on the round end fluted disc (9), perhaps are installed on the stiff end fluted disc (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98113481A CN1054564C (en) | 1998-03-24 | 1998-03-24 | Numerical control knife rest with cam positioning device and code disc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98113481A CN1054564C (en) | 1998-03-24 | 1998-03-24 | Numerical control knife rest with cam positioning device and code disc |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1192392A CN1192392A (en) | 1998-09-09 |
| CN1054564C true CN1054564C (en) | 2000-07-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98113481A Expired - Fee Related CN1054564C (en) | 1998-03-24 | 1998-03-24 | Numerical control knife rest with cam positioning device and code disc |
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| Country | Link |
|---|---|
| CN (1) | CN1054564C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102407462B (en) * | 2011-12-16 | 2013-11-27 | 芜湖恒升重型机床股份有限公司 | Speed feedback mechanism for vertical laworktable |
| CN103418807B (en) * | 2013-08-26 | 2015-07-15 | 常州市宏达机床数控设备有限公司 | Hydraulic indexing tool rest |
| EP3538309A1 (en) * | 2016-11-08 | 2019-09-18 | Belvac Production Machinery, Inc. | Method and apparatus for trimming a can |
| CN110328542B (en) * | 2019-08-09 | 2021-01-26 | 深圳市德昌达自动化科技有限公司 | Frock clamp is used in car cylinder liner manufacturing |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1033020A (en) * | 1987-07-14 | 1989-05-24 | 巴鲁法蒂联合股票公司 | The knife rest turntable of band Gear Planet Transmission and positioner |
| US4922591A (en) * | 1984-03-20 | 1990-05-08 | Carboloy Inc. | Tool storage and changing system |
| EP0451479A2 (en) * | 1990-04-12 | 1991-10-16 | Hans Heid Ag Holzbearbeitungs-Maschinen | Machining centre for flat, platelike workpieces |
-
1998
- 1998-03-24 CN CN98113481A patent/CN1054564C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4922591A (en) * | 1984-03-20 | 1990-05-08 | Carboloy Inc. | Tool storage and changing system |
| CN1033020A (en) * | 1987-07-14 | 1989-05-24 | 巴鲁法蒂联合股票公司 | The knife rest turntable of band Gear Planet Transmission and positioner |
| EP0451479A2 (en) * | 1990-04-12 | 1991-10-16 | Hans Heid Ag Holzbearbeitungs-Maschinen | Machining centre for flat, platelike workpieces |
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| Publication number | Publication date |
|---|---|
| CN1192392A (en) | 1998-09-09 |
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