CN107127359B - Straight shaft brake device with outage self-locking function - Google Patents
Straight shaft brake device with outage self-locking function Download PDFInfo
- Publication number
- CN107127359B CN107127359B CN201710309837.8A CN201710309837A CN107127359B CN 107127359 B CN107127359 B CN 107127359B CN 201710309837 A CN201710309837 A CN 201710309837A CN 107127359 B CN107127359 B CN 107127359B
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- Prior art keywords
- air inlet
- brake
- support legs
- sides
- straight
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- 238000007789 sealing Methods 0.000 claims description 4
- 210000001503 joint Anatomy 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000003381 stabilizer Substances 0.000 description 5
- 238000003754 machining Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
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
- B23Q1/70—Stationary or movable members for carrying working-spindles for attachment of tools or work
-
- 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
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/02—Driving main working members
- B23Q5/04—Driving main working members rotary shafts, e.g. working-spindles
- B23Q5/20—Adjusting or stopping working-spindles in a predetermined position
Abstract
The invention discloses a straight-shaft brake device with a power-off self-locking function, which comprises a brake shell, brake wear-resistant pieces and a spring plate, wherein the brake shell comprises a transverse plate and support legs at two sides of the transverse plate, the tops of the support legs extend above the transverse plate, two sides of the spring plate are clamped in straight grooves formed in the tops of the support legs, a cavity for introducing compressed air is formed between the spring plate and the transverse plate, first air inlet holes for air inlet are formed in the support legs, the brake wear-resistant pieces are fixedly connected to the inner sides of the lower parts of the support legs, the outer sides of the brake wear-resistant pieces in the cavity cling to a rail under the tension of the spring plate to play a braking role when compressed air is not introduced into the cavity, the spring plate is jacked to protrude outwards when the compressed air is introduced into the cavity. The brake device has the advantages of novel structure and low manufacturing cost, can realize automatic locking after power failure, and greatly improves the processing precision and safety of a machine tool.
Description
Technical Field
The invention relates to the field of machine tool machining, in particular to a straight shaft brake device with a power-off self-locking function.
Background
In a five-axis machine tool, a machine tool working mechanism such as a rotary table, a head swing body, a saddle, and the like is generally attached to a straight axis (including X, Y, Z axes) via a rail, and the machine tool working mechanism is slidable on the rail via a slide block. Because of the inertia and the dead weight of the machine tool working mechanism, a reliable brake device must be arranged between the straight-axis track and the machine tool working mechanism, otherwise, the machining precision and the equipment safety are greatly influenced. Particularly, when power failure occurs, a general brake device which locks a brake by means of external power cannot provide a reliable brake function at the moment, and therefore huge hidden danger is brought to the safety of the five-axis machine tool.
Disclosure of Invention
Aiming at the problems, the invention provides a straight shaft brake device with a power-off self-locking function.
The purpose of the invention is realized by adopting the following technical scheme:
the utility model provides a straight axle brake equipment with outage self-locking function, including brake ware casing, brake wear pad and spring board, the brake ware casing includes the stabilizer blade of diaphragm and diaphragm both sides, the top of stabilizer blade extends to on the diaphragm, the both sides block of spring board is in the straight flute that the stabilizer blade top was seted up, form the cavity that is used for letting in compressed air between spring board and the diaphragm, offer the first inlet port that is used for admitting air on the stabilizer blade, brake wear pad rigid coupling is inboard in the lower part of stabilizer blade, the track play the braking action is hugged closely under the tension of spring board in the outside of brake wear pad when not letting in compressed air in the cavity, spring board is by the jack-up evagination when letting in compressed air in the cavity, the brake wear pad of both sides loosens and orbital contact.
The invention has the beneficial effects that: the brake device is novel in structure and low in manufacturing cost, the brake device is loosened by introducing compressed air, and after a power-off air source is cut off, the automatic locking of a machine tool working mechanism can be realized, so that the machining precision and safety of a machine tool are greatly improved; the design of double air inlets is adopted, so that the position flexibility of an external air source is greatly improved, and conditions are provided for partial maintenance of parts; in addition, the brake device improves the rigidity and the shock absorption performance of the machine tool on the whole, and has good practical value.
Drawings
The invention is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be obtained on the basis of the following drawings without inventive effort.
FIG. 1 is an overall schematic view of a five-axis machine tool;
FIG. 2 is a schematic view of the brake apparatus when the rotating shaft pendulum head body is not installed on the Z-axis track;
FIG. 3 is an assembled view of the brake apparatus;
FIG. 4 is a schematic cross-sectional view of the brake apparatus in a locked condition;
FIG. 5 is an external view of the brake assembly after assembly;
FIG. 6 is a schematic cross-sectional view of the brake apparatus in a vent-released condition.
Detailed Description
The invention is further described with reference to the following examples.
Referring to fig. 1, the overall schematic diagram of a five-axis machine tool is shown, and the brake device is used for stopping and braking a machine tool working mechanism, which can be a swing head body 1 on a Z axis, a rotary workbench 2 on a Y axis, a saddle 3 on an X axis, and the like, and can also be used for a machine tool working mechanism on any straight-axis track.
Referring to fig. 2, taking the Z axis as an example, the position of the braking device on the rail is schematically shown, the head swing body 1 (for the sake of clarity, the head swing body 1 is not shown in fig. 2) is respectively connected with four sliders 4 and two braking devices 5 through bolts, and the sliders 4 and the braking devices 5 can slide on the rail 6.
Referring to fig. 3-5, the brake device 5 includes a brake housing 301, a brake wear pad 302 and a spring plate 303, the brake housing 301 includes a horizontal plate 304 and legs 305 at two sides of the horizontal plate 304, the tops of the legs 305 extend above the horizontal plate 304, two sides of the spring plate 303 (also called an elastic plate) are clamped in straight grooves 306 formed at the tops of the legs 305, a chamber 307 for introducing compressed air is formed between the spring plate 303 and the horizontal plate 304, the legs 305 are provided with first air inlet holes 308 for air intake, the brake wear pad 302 is fixedly connected to the inner side of the lower portion of the legs 305, when compressed air is not introduced into the chamber 307, the outer side of the brake wear pad 302 is tightly attached to the rail 6 under the tension of the spring plate 303 to perform a braking function, when compressed air is introduced into the chamber 307, the spring plate 303 is jacked to protrude outward, and the brake wear pads 302 at two sides are released from contact with the rail.
As a further preferable scheme, the brake device further comprises connecting blocks 317 arranged on two sides of the brake shell 301, the whole connecting block 317 is in an Jiong shape and is connected with the brake shell 301 through bolts 309, and the top of the connecting block 317 is provided with a screw hole 310 for connecting a machine tool working mechanism.
As a further preferable scheme, the first air inlet hole 308 is formed in the convex edge 311 of the supporting leg 305, the side surface of the supporting leg 305 is provided with a second air inlet hole 312 communicated with the first air inlet hole 308, the side surface of the connecting block 317 is provided with a third air inlet hole 313, when the connecting block 317 is in butt joint with the brake housing 301, the third air inlet hole 313 is communicated with the second air inlet hole 312, and an air inlet end 314 of the third air inlet hole 313 is formed in the outer side surface of the supporting leg of the connecting block, so as to facilitate the access of an external air source.
As a further preferable scheme, a cross beam 315 for positioning the spring plate 303 is fixedly connected between the tops of the two support legs 305, sealing strips for improving air tightness are fixedly connected to the inner sides of the cross beam 315 and the straight groove 306, and a sealing ring is arranged in the second air inlet 312.
As a further preferable scheme, the cross section of the rail 6 is provided with a middle concave part 401, and the brake wear pad 302 is provided with a convex part 316 matched with the middle concave part 401, so that the design saves the material of the brake wear pad 302 on one hand, and improves the positioning capability of the brake wear pad 302 during braking on the other hand.
As a further preferred option, the transverse plate 304 and the legs 305 are integrally formed.
As a further preferable scheme, two first air inlet holes 308, two second air inlet holes 312 and two third air inlet holes 313 are symmetrically arranged, air can be simultaneously supplied to the air inlet ends 314 of the two third air inlet holes 313 to release braking, air can also be supplied to a single air inlet end 314, when the single air inlet end 314 is used for supplying air, the other air inlet end 314 is sealed by a cock to prevent air leakage, and the arrangement of the double-hole structure can greatly improve the position flexibility of an external air source and provide conditions for partial maintenance parts.
The specific working principle of the brake device is as follows: fig. 4 is a cross-sectional view of the brake device in a locked state, in which the convex portion 316 of the brake pad 302 abuts against the concave portion 401 at the side of the rail 6 under the outward tension of the spring plate 303 (with the connection between the cross plate 304 and the leg 305 as a fulcrum), so as to perform a braking function, and the original horizontal length of the brake pad 302 is slightly larger than the distance between the two opposite straight grooves 306; fig. 6 is a schematic cross-sectional view of the brake device in a ventilation released state, when compressed air is introduced into the cavity 307, the middle part of the spring plate 303 is bulged under the action of air pressure, so that the horizontal length of the spring plate 303 is reduced, and the brake wear pad 302 is released from contact with the rail 6.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (7)
1. A straight shaft brake device with a power-off self-locking function is characterized by comprising a brake shell, brake wear-resistant pieces and spring plates, wherein the brake wear-resistant pieces and the spring plates are positioned on two sides of a rail and can be in contact with the rail, the brake shell comprises a transverse plate and support legs on two sides of the transverse plate, the tops of the support legs extend to the transverse plate, two sides of each spring plate are clamped in straight grooves formed in the tops of the support legs, a cavity for introducing compressed air is formed between the spring plates above the transverse plate and the support legs on two sides of the transverse plate, first air inlet holes for air inlet are formed in the support legs, the brake wear-resistant pieces are fixedly connected to the inner sides of the lower parts of the support legs, the outer sides of the brake wear-resistant pieces are tightly attached to the rail under the tension of the spring plates to play a braking role when compressed air is not introduced into the cavity, the spring plates above the cavity are jacked to be upwards bulged under the air pressure, the brake wear-resistant plates on the two sides are released from contact with the rail.
2. The straight-shaft brake device with the power-off self-locking function as claimed in claim 1, further comprising connecting blocks arranged on two sides of the brake shell, wherein the connecting blocks are integrally shaped like 'Jiong', and are connected with the brake shell through bolts, and screw holes for connecting a machine tool working mechanism are formed in the tops of the connecting blocks.
3. The straight-shaft brake device with the power-off self-locking function as claimed in claim 2, wherein the first air inlet hole is formed in the convex edge of the supporting leg, the second air inlet hole communicated with the first air inlet hole is formed in the side surface of the supporting leg, the third air inlet hole is formed in the side surface of the connecting block, when the connecting block is in butt joint with the brake shell, the third air inlet hole is communicated with the second air inlet hole, and the air inlet end of the third air inlet hole is formed in the outer side surface of the supporting leg of the connecting block.
4. The straight-shaft brake device with the power-off self-locking function as claimed in claim 3, wherein a cross beam for positioning the spring plate is fixedly connected between the tops of the two support legs, sealing strips for improving air tightness are fixedly connected to the inner sides of the cross beam and the straight groove, and a sealing ring is arranged in the second air inlet hole.
5. The straight-shaft brake device with the power-off self-locking function as claimed in claim 4, wherein the cross section of the rail is provided with a middle concave part, and the brake wear-resistant plate is provided with a convex part matched with the middle concave part.
6. The straight-shaft brake device with the power-off self-locking function as claimed in claim 5, wherein the transverse plate and the support legs at the two sides are integrally formed.
7. The straight-axis brake device with the power-off self-locking function as claimed in claim 6, wherein the number of the first air inlet holes, the second air inlet holes and the third air inlet holes is two, the air can be supplied to the air inlet ends of the two third air inlet holes simultaneously to realize brake release, the air can be supplied to a single air inlet end, and when the single air inlet end is used for air supply, the other air inlet end is sealed by a cock to prevent air leakage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710309837.8A CN107127359B (en) | 2017-05-04 | 2017-05-04 | Straight shaft brake device with outage self-locking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710309837.8A CN107127359B (en) | 2017-05-04 | 2017-05-04 | Straight shaft brake device with outage self-locking function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107127359A CN107127359A (en) | 2017-09-05 |
| CN107127359B true CN107127359B (en) | 2020-04-07 |
Family
ID=59715269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710309837.8A Active CN107127359B (en) | 2017-05-04 | 2017-05-04 | Straight shaft brake device with outage self-locking function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107127359B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009149893A1 (en) * | 2008-06-09 | 2009-12-17 | Hema Maschinen Und Apparateschutz Gmbh | Clamping and/or braking device |
| CN101839279A (en) * | 2009-03-11 | 2010-09-22 | 谢夫勒科技有限两合公司 | Linear guide apparatus with braking device |
| CN104736875A (en) * | 2012-12-21 | 2015-06-24 | Chr.迈尔有限公司及两合公司 | Linear brake operated by means of external energy |
| JP5758773B2 (en) * | 2011-10-24 | 2015-08-05 | 旭精工株式会社 | Linear brake |
| JP2016164418A (en) * | 2015-03-06 | 2016-09-08 | 旭精工株式会社 | Linear brake |
-
2017
- 2017-05-04 CN CN201710309837.8A patent/CN107127359B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009149893A1 (en) * | 2008-06-09 | 2009-12-17 | Hema Maschinen Und Apparateschutz Gmbh | Clamping and/or braking device |
| CN101839279A (en) * | 2009-03-11 | 2010-09-22 | 谢夫勒科技有限两合公司 | Linear guide apparatus with braking device |
| JP5758773B2 (en) * | 2011-10-24 | 2015-08-05 | 旭精工株式会社 | Linear brake |
| CN104736875A (en) * | 2012-12-21 | 2015-06-24 | Chr.迈尔有限公司及两合公司 | Linear brake operated by means of external energy |
| US9316262B2 (en) * | 2012-12-21 | 2016-04-19 | Chr. Mayr Gmbh + Co. Kg | Linear brake operated by means of external energy |
| JP2016164418A (en) * | 2015-03-06 | 2016-09-08 | 旭精工株式会社 | Linear brake |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107127359A (en) | 2017-09-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20171228 Address after: 510850 Guangdong Province, Guangzhou city mayor Gang Cun, Huadu District Shiling A-C workshop and office building of 2 parts of self (which can be used for plant use) Applicant after: GUANGZHOU FEIHONG INTELLIGENCE SCIENCE TECHNOLOGY CO.,LTD. Address before: 510860 Guangdong Province, Guangzhou city mayor Gang Cun, Huadu District Shiling building A-C Applicant before: GUANGZHOU FEIHONG ELECTROMACHINERY SCIENCE AND TECH. Co.,Ltd. |
|
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231029 Address after: Building 1 and Building 2, No. 41 Furong Avenue, Huadu District, Guangzhou City, Guangdong Province, 510813 Patentee after: Guangzhou Feihong Intelligent Equipment Co.,Ltd. Address before: 510850 part a-c of plant and office building in Changgang village, Shiling Town, Huadu District, Guangzhou City, Guangdong Province (can be used as plant) Patentee before: GUANGZHOU FEIHONG INTELLIGENCE SCIENCE TECHNOLOGY CO.,LTD. |