CN105108546A - Cylinder knife beating mechanism of T-shaped ram main shaft - Google Patents
Cylinder knife beating mechanism of T-shaped ram main shaft Download PDFInfo
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- CN105108546A CN105108546A CN201510583430.5A CN201510583430A CN105108546A CN 105108546 A CN105108546 A CN 105108546A CN 201510583430 A CN201510583430 A CN 201510583430A CN 105108546 A CN105108546 A CN 105108546A
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- cylinder
- knife
- shaped ram
- main shaft
- lever
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/155—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling
Abstract
The invention discloses a cylinder knife beating mechanism of a T-shaped ram main shaft. The mechanism comprises a cylinder, a lever, a bearing ring and two cylindrical roller bearings, wherein the cylinder is arranged at the outer side of a T-shaped ram; a cylinder body of the cylinder is connected to a first fixed bracket through a pin shaft; one end of the lever is connected with a piston of the cylinder through a pin shaft, and the other end of the lever is mounted on the inner wall of the other side of the T-shaped ram through a pin shaft; a longitudinal through hole is formed in the lever; two fixed shafts are arranged on the lever, and are respectively positioned at the two sides of the longitudinal through hole; the two cylindrical roller bearings are respectively fixed on the two fixed shafts; the bearing ring is arranged rightly below the two cylindrical roller bearings, and coats the outer side of a piston of a knife beating cylinder of a T-shaped main shaft; a transverse through hole is formed in the bearing ring; and a bearing rod is inserted in the transverse through hole. The knife beating mechanism is simple in structure and convenient for installation and maintenance, can finish a knife beating action by only needing less knife beating force, and can radically solve the oil leaking problem of a traditional knife beating cylinder.
Description
Technical field
The invention belongs to numerical control machining center technical field, relate to the knife machining mechanism of T-shaped ram main shaft, specifically a kind of cylinder knife machining mechanism of T-shaped ram main shaft.
Background technology
The rear end of existing T-shaped ram main shaft carries knife striking cylinder, and its process of forging a knife is led to hydraulic oil by knife striking cylinder and come.For numerical control machining center manufacturer, T-shaped ram main shaft is outsourcing piece, and the main shaft carrying unclamping cylinder device exceeds nearly about 10,000 yuan than the main shaft not containing knife striking cylinder structure on cost.And this T-shaped ram main shaft carrying knife striking cylinder, the phenomenon of hydraulic fluid leak easily occurs, once hydraulic fluid leak, the hydraulic oil of leakage directly can enter main shaft bearing, causes bearing to burn out.Therefore, no matter existing T-shaped ram main shaft is from cost, or the security aspect used, and all there is certain deficiency.
Summary of the invention
Technical problem to be solved by this invention is: for the deficiencies in the prior art, a kind of cylinder knife machining mechanism of T-shaped ram main shaft is provided, this cylinder knife machining mechanism cost is low, structure is simple, installation and maintenance is convenient, only need the less power of forging a knife to complete action of forging a knife, and fundamentally can solve the Leakage of traditional knife striking cylinder.
The present invention solves the problems of the technologies described above adopted technical scheme: a kind of cylinder knife machining mechanism of T-shaped ram main shaft, comprise cylinder, lever, retainer ring and two cylinder roller bearings, magnetic valve is provided with in described cylinder, the bottom of described cylinder is provided with cylinder piston, described cylinder is arranged on the outside of T-shaped ram, the cylinder body of described cylinder by pinned connection on the first fixed support, the first described fixed support is fixed on the outer wall of the side of described T-shaped ram, one end of described lever is connected by bearing pin with described cylinder piston, the other end of described lever is installed on the inwall of the opposite side of described T-shaped ram by bearing pin, described lever offers longitudinal hole, described lever is provided with two fixed axis, two described fixed axis are separately positioned on the both sides of described longitudinal hole, two described cylinder roller bearings are separately fixed on two described fixed axis, described retainer ring is arranged on immediately below two described cylinder roller bearings, the upper surface of described retainer ring is plane, described retainer ring is set in the outside of the knife striking cylinder piston of T-shaped main shaft, cross through hole is offered in described retainer ring, support bar is equipped with in described cross through hole, the two ends of described support bar are stretched out from the both sides of described retainer ring respectively.
The cylinder knife machining mechanism of the T-shaped ram main shaft of the present invention, action of forging a knife has been coordinated by external cylinder and lever, its operation principle is: front air cylinder piston of forging a knife is in initial position, when needing to forge a knife, compressed air acts on cylinder piston through magnetic valve, produces thrust and acts on lever, making two cylinder roller bearings press down retainer ring by lever, and then support bar drives main shaft knife striking cylinder piston to move down, thus realize the action of forging a knife of spindle machine tool striking device; After the process of forging a knife terminates, cylinder piston resets to initial position under the effect of the inner disc spring of compressed air, magnetic valve and main shaft.Cylinder knife machining mechanism of the present invention adopts the mode of fixed cylinder roller bearing on lever, lever construction is utilized to realize forging a knife, power of forging a knife needed for forging a knife is less, in addition, using the outer shroud of cylinder roller bearing as fulcrum of forging a knife, the fulcrum of forging a knife of this form, its contact surface is the outer ring surface of cylinder roller bearing, and this outer ring surface is cylindrical surface, because of the deflection load caused by bias when can effectively avoid forging a knife, the action that enables to forge a knife completes smoothly, and reliability is high.
The side outer wall of the close described cylinder piston of described T-shaped ram is provided with limit switch, and described limit switch is for detecting described cylinder piston whether parking position accuracy.
The side inwall of the close described knife striking cylinder piston of described T-shaped ram is provided with proximity switch, and whether described proximity switch puts in place for detecting the flexible of described knife striking cylinder piston.
Described longitudinal hole, near the junction of the inwall of described lever and described T-shaped ram, coaxially arranges before and after two described fixed axis and is separately positioned on the side, front and back of described longitudinal hole.
The other end of described lever has the second fixed support by pinned connection, and the second described fixed support is fixed on the inwall of the opposite side of described T-shaped ram.
The outer ring surface of two described cylinder roller bearings and the upper surface of described retainer ring are all through surface hardening heat treatment.Outer ring surface due to two cylinder roller bearings is the contact surface of forging a knife, and surface hardening heat treatment can increase case hardness and wearability, improves the service life of knife machining mechanism.
Compared with prior art, the invention has the advantages that:
(1) cost is low.Manufacturing cost compares the unclamping cylinder device saving more than 70% that existing main shaft carries, to be applied as example on the T-shaped ram main shaft of BT50 type, the manufacturing cost of knife machining mechanism of the present invention is only about 3000 yuan, can be nearly 7000 yuan of the manufacturing cost that corresponding knife machining mechanism saved by every platform lathe, being 100 calculating by an annual production, can be the cost that enterprise saves nearly 700,000 yuan every year.
(2) Leakage of conventional hydraulic knife striking cylinder is fundamentally solved.Knife machining mechanism of the present invention adopts pneumatic and cylinder is placed on ram outside, can not cause the fault of other functional parts after installing in use procedure because of leakage.
(3) coordinated by external cylinder and lever action of forging a knife, adopted the mode of fixed cylinder roller bearing on lever, utilize lever construction to realize forging a knife, only need the less power of forging a knife to complete action of forging a knife.To be applied as example on the T-shaped ram main shaft of BT50 type, knife machining mechanism of the present invention provides the power of forging a knife of 0.7MPa to realize action of forging a knife, and conventional hydraulic knife striking cylinder needs could to realize main shaft by the hydraulic oil of about 4.0MPa forges a knife, therefore knife machining mechanism of the present invention can significantly economize energy.
(4) structure is simple, and installation and maintenance is convenient.Because cylinder is external, the running status of cylinder can be watched in real time in process forged a knife by main shaft, understand whole process of forging a knife and whether normally carry out.
(5) adopt compressed air as power source, compressed air is clean energy resource, and therefore knife machining mechanism of the present invention is compared to the traditional knife machining mechanism using hydraulic oil as power source, has the advantage of environmentally safe.
(6) using the outer shroud of cylinder roller bearing as fulcrum of forging a knife, the fulcrum of forging a knife of this form, its contact surface is the outer ring surface of cylinder roller bearing, this outer ring surface is cylindrical surface, because of the deflection load caused by bias when can effectively avoid forging a knife, the action that enables to forge a knife completes smoothly, and reliability is high.
Accompanying drawing explanation
Fig. 1 is the outside drawing of the original state of cylinder knife machining mechanism;
Fig. 2 is the outside drawing of the reset mode of forging a knife of cylinder knife machining mechanism;
Fig. 3 is the front view of the original state of the cylinder knife machining mechanism having additional limit switch;
Fig. 4 is the front view of the state of forging a knife of the cylinder knife machining mechanism having additional limit switch;
Fig. 5 is that the cylinder knife machining mechanism having additional limit switch installs rear design sketch on the T-shaped ram main shaft of BT50 type;
Fig. 6 is the connection diagram of lever and T-shaped ram.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
The cylinder knife machining mechanism of embodiment 1:T type ram main shaft, as depicted in figs. 1 and 2, this cylinder knife machining mechanism comprises cylinder 1, lever 2, retainer ring 3 and two cylinder roller bearings 4, cylinder 1 is purchased from SMC company, magnetic valve (not shown) is provided with in cylinder 1, the bottom of cylinder 1 is provided with cylinder piston 11, cylinder 1 is arranged on the outside that model is the T-shaped ram 51 of BT50, the cylinder body of cylinder 1 is connected on the first fixed support 13 by bearing pin 12, first fixed support 13 is fixed on the outer wall of the side of T-shaped ram 51, one end of lever 2 is connected by bearing pin 21 with cylinder piston 11, the other end of lever 2 is connected with the second fixed support 23 by bearing pin 22, second fixed support 23 is fixed on the inwall of the opposite side of T-shaped ram 51, lever 2 offers longitudinal hole 24, longitudinal hole 24 is near the junction of lever 2 with the inwall of T-shaped ram 51, lever 2 is provided with two fixed axis 25, coaxially arrange before and after two fixed axis 25 and be separately positioned on the side, front and back of longitudinal hole 24, two cylinder roller bearings 4 are separately fixed on two fixed axis 25, retainer ring 3 is arranged on immediately below two cylinder roller bearings 4, the upper surface of retainer ring 3 is plane, retainer ring 3 is set in the outside of the knife striking cylinder piston 53 of T-shaped main shaft 52, cross through hole 31 is offered in retainer ring 3, support bar 32 is equipped with in cross through hole 31, the two ends of support bar 32 are stretched out from the both sides of retainer ring 3 respectively, the side inwall of the close knife striking cylinder piston 53 of T-shaped ram 51 is provided with proximity switch 54, whether proximity switch 54 puts in place for detecting the flexible of knife striking cylinder piston 53.The cylinder knife machining mechanism of embodiment 1 installs rear design sketch on the T-shaped ram main shaft 51 of BT50 type can see Fig. 5.
Embodiment 2: substantially identical with the structure of the cylinder knife machining mechanism of the T-shaped ram main shaft of embodiment 1, difference is, the side outer wall of the close cylinder piston 11 of T-shaped ram 51 is provided with limit switch 55, as shown in Figure 3 and Figure 4, limit switch 55 is for detecting cylinder piston 11 whether parking position accuracy.The cylinder knife machining mechanism of embodiment 2 is installed rear design sketch and is seen Fig. 5 on the T-shaped ram main shaft of BT50 type.
In above embodiment, the outer ring surface of two cylinder roller bearings 4 and the upper surface of retainer ring 3 can be passed through surface hardening heat treatment, can increase case hardness and wearability, improve the service life of knife machining mechanism.
The operation principle of the cylinder knife machining mechanism of the T-shaped ram main shaft of above embodiment is: front air cylinder piston 11 of forging a knife is in initial position (see Fig. 3), when needing to forge a knife, compressed air acts on cylinder piston 11 through magnetic valve, produce thrust and act on lever 2, two cylinder roller bearings 4 are made to press down retainer ring 3 by lever 2, and then support bar 32 drives main shaft knife striking cylinder piston 53 to move down, thus realize the action of forging a knife of spindle machine tool striking device; After the process of forging a knife terminates, cylinder piston 11 resets to initial position under the effect of the inner disc spring 55 of compressed air, magnetic valve and main shaft.
The manufacturing cost of the cylinder knife machining mechanism of the T-shaped ram main shaft of above embodiment 1 or embodiment 2 is only about 3000 yuan, can realize main shaft to forge a knife action with the power of forging a knife of 0.7MPa.
Claims (6)
1. the cylinder knife machining mechanism of a T-shaped ram main shaft, it is characterized in that comprising cylinder, lever, retainer ring and two cylinder roller bearings, magnetic valve is provided with in described cylinder, the bottom of described cylinder is provided with cylinder piston, described cylinder is arranged on the outside of T-shaped ram, the cylinder body of described cylinder by pinned connection on the first fixed support, the first described fixed support is fixed on the outer wall of the side of described T-shaped ram, one end of described lever is connected by bearing pin with described cylinder piston, the other end of described lever is installed on the inwall of the opposite side of described T-shaped ram by bearing pin, described lever offers longitudinal hole, described lever is provided with two fixed axis, two described fixed axis are separately positioned on the both sides of described longitudinal hole, two described cylinder roller bearings are separately fixed on two described fixed axis, described retainer ring is arranged on immediately below two described cylinder roller bearings, the upper surface of described retainer ring is plane, described retainer ring is set in the outside of the knife striking cylinder piston of T-shaped main shaft, cross through hole is offered in described retainer ring, support bar is equipped with in described cross through hole, the two ends of described support bar are stretched out from the both sides of described retainer ring respectively.
2. the cylinder knife machining mechanism of a kind of T-shaped ram main shaft according to claim 1, the side outer wall that it is characterized in that the close described cylinder piston of described T-shaped ram is provided with limit switch, and described limit switch is for detecting described cylinder piston whether parking position accuracy.
3. the cylinder knife machining mechanism of a kind of T-shaped ram main shaft according to claim 1 and 2, the side inwall that it is characterized in that the close described knife striking cylinder piston of described T-shaped ram is provided with proximity switch, and whether described proximity switch puts in place for detecting the flexible of described knife striking cylinder piston.
4. the cylinder knife machining mechanism of a kind of T-shaped ram main shaft according to claim 1 and 2, it is characterized in that the junction of described longitudinal hole near the inwall of described lever and described T-shaped ram, coaxially arrange before and after two described fixed axis and be separately positioned on the side, front and back of described longitudinal hole.
5. the cylinder knife machining mechanism of a kind of T-shaped ram main shaft according to claim 1 and 2, it is characterized in that the other end of described lever has the second fixed support by pinned connection, the second described fixed support is fixed on the inwall of the opposite side of described T-shaped ram.
6. the cylinder knife machining mechanism of a kind of T-shaped ram main shaft according to claim 1 and 2, is characterized in that the upper surface of the outer ring surface of two described cylinder roller bearings and described retainer ring is all through surface hardening heat treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510583430.5A CN105108546B (en) | 2015-09-15 | 2015-09-15 | A kind of cylinder knife machining mechanism of T-shaped ram main shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510583430.5A CN105108546B (en) | 2015-09-15 | 2015-09-15 | A kind of cylinder knife machining mechanism of T-shaped ram main shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105108546A true CN105108546A (en) | 2015-12-02 |
| CN105108546B CN105108546B (en) | 2017-09-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510583430.5A Active CN105108546B (en) | 2015-09-15 | 2015-09-15 | A kind of cylinder knife machining mechanism of T-shaped ram main shaft |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107538259A (en) * | 2016-07-21 | 2018-01-05 | 沃瑞克数控机床(上海)有限公司 | Pneumatic quick device for loosing knife |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202207915U (en) * | 2011-08-21 | 2012-05-02 | 兆山集团襄樊机床有限公司 | Main shaft unclamping device capable of repositioning |
| CN103419055A (en) * | 2013-08-08 | 2013-12-04 | 宁波海天精工股份有限公司 | Mechanical reinforcement type spindle knife loosening system |
| CN203390621U (en) * | 2013-05-24 | 2014-01-15 | 财团法人工业技术研究院 | Tool changing device |
| CN204183309U (en) * | 2014-11-05 | 2015-03-04 | 上海克迈特精密机床有限公司 | With dynamic knife machining mechanism |
| CN104842201A (en) * | 2015-06-09 | 2015-08-19 | 深圳市科益展自动化有限公司 | Automatic cutter disassembling device |
| CN204935208U (en) * | 2015-09-15 | 2016-01-06 | 宁波海天精工股份有限公司 | A kind of cylinder knife machining mechanism of T-shaped ram main shaft |
-
2015
- 2015-09-15 CN CN201510583430.5A patent/CN105108546B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202207915U (en) * | 2011-08-21 | 2012-05-02 | 兆山集团襄樊机床有限公司 | Main shaft unclamping device capable of repositioning |
| CN203390621U (en) * | 2013-05-24 | 2014-01-15 | 财团法人工业技术研究院 | Tool changing device |
| CN103419055A (en) * | 2013-08-08 | 2013-12-04 | 宁波海天精工股份有限公司 | Mechanical reinforcement type spindle knife loosening system |
| CN204183309U (en) * | 2014-11-05 | 2015-03-04 | 上海克迈特精密机床有限公司 | With dynamic knife machining mechanism |
| CN104842201A (en) * | 2015-06-09 | 2015-08-19 | 深圳市科益展自动化有限公司 | Automatic cutter disassembling device |
| CN204935208U (en) * | 2015-09-15 | 2016-01-06 | 宁波海天精工股份有限公司 | A kind of cylinder knife machining mechanism of T-shaped ram main shaft |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107538259A (en) * | 2016-07-21 | 2018-01-05 | 沃瑞克数控机床(上海)有限公司 | Pneumatic quick device for loosing knife |
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| CN105108546B (en) | 2017-09-12 |
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