CN111702511B - Floating type numerical control turntable safety locking structure - Google Patents
Floating type numerical control turntable safety locking structure Download PDFInfo
- Publication number
- CN111702511B CN111702511B CN202010497416.4A CN202010497416A CN111702511B CN 111702511 B CN111702511 B CN 111702511B CN 202010497416 A CN202010497416 A CN 202010497416A CN 111702511 B CN111702511 B CN 111702511B
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- Prior art keywords
- locking ring
- brake
- sleeve
- numerical control
- floating type
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- 230000006835 compression Effects 0.000 claims abstract description 8
- 238000007906 compression Methods 0.000 claims abstract description 8
- 230000033001 locomotion Effects 0.000 claims description 20
- 238000007789 sealing Methods 0.000 claims description 9
- 239000000446 fuel Substances 0.000 claims 1
- 239000003921 oil Substances 0.000 description 31
- 230000002159 abnormal effect Effects 0.000 description 3
- 238000010008 shearing Methods 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Classifications
-
- 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
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/25—Movable or adjustable work or tool supports
- B23Q1/26—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members
- B23Q1/38—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members using fluid bearings or fluid cushion supports
-
- 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
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/25—Movable or adjustable work or tool supports
- B23Q1/26—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
- Machine Tool Units (AREA)
Abstract
The invention discloses a floating type numerical control turntable safety locking structure which comprises a turntable base body and a rotary moving body, wherein a braking sleeve, an annular sleeve and a fixed seat are sleeved and fixed on the turntable base body, a locking ring which synchronously rotates along with the rotary moving body is connected in the rotary moving body, connecting bolts which are used for connecting the locking ring with the rotary moving body are uniformly distributed on the locking ring, the locking ring can axially move along the connecting bolts, a reset spring which is used for applying force to the locking ring to enable the locking ring to lean against the rotary moving body is sleeved on the connecting bolts, release oil cylinders are uniformly distributed on the fixed seat, braking shoes are fixed on piston rods of the release oil cylinders, the release oil cylinders are single-acting hydraulic cylinders, compression springs are arranged in front of the braking shoes and the fixed seat, and can apply force towards the locking ring, and the braking shoes can push the locking ring to move towards one side of the braking sleeve and compress the locking ring on the braking sleeve.
Description
Technical Field
The invention belongs to the field of metal cutting numerical control machine tools, and particularly relates to a floating type numerical control turntable safety locking structure.
Background
The numerical control rotary worktable is a core functional component of a five-axis machining center, and the completeness and safety of the functions of the numerical control rotary worktable are the necessary requirements of the worktable.
The gravity center of the swinging shaft movement part of the double-shaft numerical control rotary table deviates from the rotation center, and the rotary table is required to be kept at the position before power failure under the conditions of power failure, emergency stop and the like from the aspects of safety and operation and use. At present, the numerical control turntable adopts spring force to press the deformation and compaction fixing surface of the brake pad for braking, and the numerical control turntable has the series problems that the manufacturing of the thin brake pad is difficult, the permanent deformation of the brake pad generates friction abnormal sound, the braking can generate acting force to the rotating shaft to influence the precision and the like.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides a floating type numerical control turntable safety locking structure which has large braking force, no abnormal sound and no influence on the precision of a rotating shaft, and the technical scheme adopted by the invention is as follows:
A floating type numerical control rotary table safety locking structure comprises a rotary table base body and a rotary motion body, wherein a brake sleeve, an annular sleeve and a fixed seat are sleeved and fixed on the rotary table base body, a locking ring which synchronously rotates along with the rotary motion body is connected in the rotary motion body, connecting bolts which are used for connecting the locking ring with the rotary motion body are uniformly distributed on the locking ring, the locking ring can axially move along the connecting bolts, a reset spring which is used for applying force to the locking ring to enable the locking ring to lean against the rotary motion body is sleeved on the connecting bolts, a release oil cylinder is uniformly distributed on the fixed seat, a brake shoe is fixed on a piston rod of the release oil cylinder, the release oil cylinder is a single-acting hydraulic cylinder, a compression spring is arranged in front of the brake shoe and the fixed seat, and can apply force towards the locking ring, and the brake shoe can push the locking ring to move towards one side of the brake sleeve and tightly press the locking ring on the brake sleeve.
Further, the annular sleeve is provided with annular oil paths for supplying oil to the release oil cylinders, sealing grooves are respectively arranged on two sides of the annular oil paths, sealing rings are arranged in the sealing grooves, first oil paths communicated with the annular oil paths are uniformly distributed in the annular sleeve, and second oil paths communicated with the first oil paths and the release oil cylinders are uniformly distributed in the fixing seat.
Further, a gap is reserved between the fixing seat and the brake sleeve, the locking ring comprises a brake part and a connecting part, the brake part extends into the gap between the fixing seat and the brake sleeve, and the connecting bolt is arranged on the connecting part.
Further, a first key groove is formed in the outer ring of the locking ring, a flat key is fixed in the first key groove, and a second key groove matched with the flat key is formed in the rotary moving body; the first key groove is arranged at the connecting part.
Further, the flat key is fixed on the first key groove through a bolt, and a group of first key grooves are uniformly distributed on the outer ring of the locking ring.
Further, the brake sleeve and the annular sleeve are fixedly connected with the turntable base body through bolts, and the fixing seat is fixedly connected with the annular sleeve through bolts.
The locking structure adopts the floating type braking ring, the turntable substrate, the braking sleeve and the braking shoe ring seat are all arranged on the fixed part, the braking process is to push the braking shoe to axially move and press the locking ring to the braking sleeve to realize locking, but the locking ring is not deformed to realize the tight sticking and locking with the braking sleeve, and the internal force of the fixed part is interacted during braking, so that the manufacturing and using problems of the traditional braking structure are overcome, and the locking structure has the advantages of rapid braking, large braking force, no influence on the precision of the turntable and the like.
Drawings
FIG. 1 is an exploded view of the present invention;
FIG. 2 is an assembled cross-sectional view of the present invention;
FIG. 3 is an enlarged partial cross-sectional view of the assembled structure;
fig. 4 is a partial cross-sectional view of the mounting base and the annular sleeve assembly structure of the present invention.
Detailed Description
The numerical control turntable safety locking structure as shown in fig. 1 and 2 includes a turntable base 1 and a rotary motion body 2, the turntable base 1 being fixed to a machine tool, and the rotary motion body 2 being rotatable relative to the turntable base 1.
As shown in fig. 2 and 3, a brake sleeve 3, an annular sleeve 4 and a fixing seat 5 are sleeved on the turntable base body 1, the brake sleeve 3, the annular sleeve 4 and the fixing seat 5 are all fixed on the turntable base body 1, the brake sleeve 3 is fixedly connected to the turntable base body 1 through bolts in the embodiment shown in the drawings, the annular sleeve 4 is fixedly connected to the turntable base body 1 through bolts, and the fixing seat 5 is fixedly connected with the annular sleeve 4 through bolts.
As shown in fig. 3, the locking ring 6 is connected to the rotary moving body 2, the locking ring 6 can rotate synchronously with the rotary moving body 2, connecting bolts 7 are uniformly distributed on the locking ring 6, the locking ring 6 is connected with the rotary moving body 2 through the connecting bolts 7, the locking ring 6 and the connecting bolts 7 are in clearance fit, and thus the locking ring 6 can axially move along the connecting bolts 7 to realize floating, the connecting bolts 7 are equivalent to a guide column to play a guiding role, and meanwhile, the locking ring 6 and the rotary moving body 2 can synchronously rotate through the connecting bolts 7, a return spring 8 is sleeved on the connecting bolts 7, the return spring 8 can apply force towards the rotary moving body 2 to the locking ring 6 along the axial direction of the bolts, and the locking ring 6 is tightly attached to the rotary moving body 2 under the action of the return spring 8. Since the locking ring 6 has a shearing force on the connecting bolt 7 when the locking ring 6 and the rotary motion body 2 synchronously rotate through the connecting bolt 7, the shearing force affects the guiding performance of the connecting bolt 7 if the shearing force is too large, in order to avoid the situation, as shown in fig. 1 and 2, a first key groove 17 is arranged on the outer ring of the locking ring 6, a flat key 18 is fixed in the first key groove 17, in the embodiment shown in the figure, the flat key is fixed on the locking ring 6 through the bolt, a second key groove 19 matched with the flat key 18 is arranged in the rotary motion body 2, and the synchronous rotation of the locking ring 6 and the rotary motion body 2 is realized through the cooperation of the first key groove 17, the flat key 18 and the second key groove 19, so that the damage to the connecting bolt 7 is reduced. When the flat key is matched with the key grooves to realize synchronous movement, the first key grooves 17 can uniformly distribute a group of improved transmission performance on the outer ring of the locking ring 6, and the number of the flat keys 18 and the second key grooves 19 are matched with that of the first key grooves 17.
As shown in fig. 4, a release oil cylinder 9 is arranged on the fixed seat 5, a brake shoe 10 is fixed on a piston rod of the release oil cylinder 9, the brake shoe 10 is close to one side of the locking ring 6, the brake shoe 10 can be driven to move through the release oil cylinder 9, the brake shoe 10 is retracted, and the locking ring 6 automatically returns under the action of a return spring 8, so that the normal unlocking of the turntable is realized. Because the safe locking structure locks the turntable under the condition of equipment outage, the turntable is prevented from rotating to hurt a machine tool and a cutter under the action of gravity or inertia force, and the embodiment shown in the figure is adopted to realize braking: the release cylinder 9 adopts a single-acting cylinder, a compression spring 11 is sleeved on a piston rod of the release cylinder 9, the compression spring 11 can apply a force towards the locking ring 6 to the brake shoe 10, the brake shoe 10 is driven by the compression spring 11 to push the locking ring 6 to move so as to press the locking ring 6 on the brake sleeve 3, and after oil is supplied to the release cylinder 9, the piston rod drives the brake shoe 10 to retract into the fixed seat 5. Since the release cylinders 9 are uniformly distributed on the fixed seat 5 and each release cylinder 9 needs to supply oil synchronously, as shown in the embodiment in fig. 1 and 4, an annular oil way 12 is arranged in the inner ring of the annular sleeve 4, two sealing grooves 13 positioned at two sides of the annular oil way 12 are further arranged on the annular sleeve 4, sealing rings 14 are respectively arranged in the sealing grooves 13, the sealing rings 14 are tightly contacted with the turntable substrate 1 to realize the sealing of the annular oil way 12, a group of first oil ways 15 are uniformly distributed in the annular sleeve 4, each first oil way 15 is communicated with the annular oil way 12, second oil ways 16 are respectively communicated with the corresponding release cylinders 9 and the corresponding first oil ways 15 in the fixed seat 5, hydraulic oil is distributed to each first oil way 15 through the annular oil ways 12, and hydraulic oil in each first oil way 15 finally enters the second oil way 16 to be supplied to each release cylinder 9, so that synchronous operation of each release cylinder 9 is realized.
As shown in fig. 3, in order to reduce the mass of the locking ring 6 and make the assembly space compact and brake more rapidly, a gap is provided between the fixing seat 5 and the brake sleeve 3, the locking ring 6 includes a brake portion 6-1 and a connection portion 6-2, as shown in the drawing, the brake portion 6-1 extends into the gap in a thin manner, and the connection portion 6-2 is connected with the rotary motion body 2 through a connection bolt 7, wherein the first key groove 17 and the flat key 18 are both provided at the connection portion 6-2, and the locking ring 6 is a ring-shaped member with a thin center and a thick edge as a whole.
When the whole normally works, the rotary motion body 2 drives the locking ring 6 to rotate, the locking ring is not contacted with other relatively moving parts in the rotation process, friction abnormal sound is avoided, the oil cylinder 9 is released to drain oil when the machine tool is shut down or unexpected power failure occurs, the brake shoe 10 contacts the locking ring 6 and pushes the locking ring 6 to move towards the brake sleeve 3 under the drive of the compression spring 11 until the brake shoe 10 compresses the locking ring 6 on the brake sleeve 3 to realize locking so as to position the rotary motion body 2; when loosening is needed, the brake shoe 10 is fed into the release cylinder 9, the locking ring 6 is separated from the brake sleeve 3 under the action of the return spring 8, the locking state is released, and at the moment, the rotary motion body 2 can rotate again.
Claims (6)
1. The utility model provides a floating numerical control revolving stage safety locking structure, includes revolving stage base member (1) and gyration moving body (2), its characterized in that: the rotary table is characterized in that a brake sleeve (3), an annular sleeve (4) and a fixed seat (5) are fixedly sleeved on the rotary table base body (1), a locking ring (6) which synchronously rotates along with the rotary motion body (2) is connected in the rotary motion body (2), connecting bolts (7) which are used for connecting the locking ring (6) with the rotary motion body (2) are uniformly distributed on the locking ring (6), the locking ring (6) can axially move along the connecting bolts (7), return springs (8) which are used for applying force to the locking ring (6) to enable the locking ring (6) to lean against the rotary motion body (2) are sleeved on the connecting bolts (7), release cylinders (9) are uniformly distributed on the fixed seat (5), brake shoes (10) are fixed on piston rods of the release cylinders (9), compression springs (11) are arranged in front of the brake shoes (10) and the fixed seat (5), the compression springs (11) can apply force to the brake shoes (10) to the brake shoes (6) to push the locking ring (6) towards the direction, and the brake shoes (6) can press the brake ring (6) towards one side of the brake sleeve (3).
2. The floating type numerical control turntable safety locking structure according to claim 1, wherein: annular sleeve (4) on be equipped with annular oil circuit (12) for each release hydro-cylinder (9) fuel feeding annular oil circuit (12) both sides be equipped with seal groove (13) respectively seal groove (13) in all be equipped with sealing washer (14) annular sleeve (4) in equipartition have first oil duct (15) with annular oil circuit (12) intercommunication fixing base (5) in equipartition have second oil duct (16) of intercommunication first oil duct (15) and release hydro-cylinder (9).
3. The floating type numerical control turntable safety locking structure according to claim 1, wherein: a gap is reserved between the fixing seat (5) and the brake sleeve (3), the locking ring (6) comprises a brake part (6-1) and a connecting part (6-2), the brake part (6-1) extends into the gap between the fixing seat (5) and the brake sleeve (3), and the connecting bolt (7) is arranged on the connecting part (6-2).
4. A floating type numerical control turntable safety locking structure according to claim 3, wherein: a first key groove (17) is formed in the outer ring of the locking ring (6), a flat key (18) is fixed in the first key groove (17), and a second key groove (19) matched with the flat key (18) is formed in the rotary moving body (2); the first key groove (17) is arranged at the connecting part (6-2).
5. The floating type numerical control turntable safety locking structure according to claim 4, wherein: the flat key (18) is fixed on the first key groove (17) through bolts, and a group of first key grooves (17) are uniformly distributed on the outer ring of the locking ring (6).
6. A floating type numerical control turntable safety locking structure according to claim 1 or 2, characterized in that: the brake sleeve (3) and the annular sleeve (4) are fixedly connected with the turntable base body (1) through bolts, and the fixing seat (5) is fixedly connected with the annular sleeve (4) through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010497416.4A CN111702511B (en) | 2020-06-02 | 2020-06-02 | Floating type numerical control turntable safety locking structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010497416.4A CN111702511B (en) | 2020-06-02 | 2020-06-02 | Floating type numerical control turntable safety locking structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111702511A CN111702511A (en) | 2020-09-25 |
| CN111702511B true CN111702511B (en) | 2024-09-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010497416.4A Active CN111702511B (en) | 2020-06-02 | 2020-06-02 | Floating type numerical control turntable safety locking structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111702511B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212330346U (en) * | 2020-06-02 | 2021-01-12 | 宝鸡忠诚机床股份有限公司 | Floating numerical control revolving stage safety locking structure |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5341969B2 (en) * | 2011-10-28 | 2013-11-13 | 株式会社日研工作所 | Brake structure of rotary table device |
| CN107443245A (en) * | 2016-05-31 | 2017-12-08 | 威海华陆数控机床有限公司 | Rotary table hydraulic locking apparatus |
| CN208147361U (en) * | 2018-03-28 | 2018-11-27 | 中国航空制造技术研究院 | A kind of hydraulic axial locking type turntable |
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2020
- 2020-06-02 CN CN202010497416.4A patent/CN111702511B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212330346U (en) * | 2020-06-02 | 2021-01-12 | 宝鸡忠诚机床股份有限公司 | Floating numerical control revolving stage safety locking structure |
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| Publication number | Publication date |
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| CN111702511A (en) | 2020-09-25 |
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