CN106346296A - Novel cam positioning key - Google Patents
Novel cam positioning key Download PDFInfo
- Publication number
- CN106346296A CN106346296A CN201611010610.5A CN201611010610A CN106346296A CN 106346296 A CN106346296 A CN 106346296A CN 201611010610 A CN201611010610 A CN 201611010610A CN 106346296 A CN106346296 A CN 106346296A
- Authority
- CN
- China
- Prior art keywords
- positioning key
- cam
- hollow
- positioning
- pressing plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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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
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/22—Feeding members carrying tools or work
- B23Q5/34—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
- B23Q5/341—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission cam-operated
- B23Q5/345—Cam assembly
-
- 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
- B23Q2705/00—Driving working spindles or feeding members carrying tools or work
- B23Q2705/10—Feeding members carrying tools or work
- B23Q2705/104—Feeding members carrying tools or work for milling machines
Abstract
The invention discloses a novel cam positioning key. The novel cam positioning key comprises an upper rotation solid, a cam, stopping blocks, a pressing plate, a hollow positioning key and a lower rotation solid. The stopping blocks and the pressing plate are fixedly connected on the upper rotation solid, the cam has a cam shaft eccentrically arranged, one end of the cam shaft is fixedly connected on the upper rotation solid, the other end of the cam shaft is fixedly connected on the pressing plate, the cam is sleeved with the hollow positioning key, and sliding space allowing the positioning key to slide in the space up and down is defined by the stopping blocks, the pressing plate and the upper rotation solid; a positioning groove matched with the positioning key is formed in the upper end of the lower rotation solid, and after the lower rotation solid rotates in place, the hollow positioning key slides downwards along with the rotating of the cam shaft and is inserted into the position groove. According to the novel cam positioning key, the hollow positioning key is driven through rotating of the cam to slide up and down, can be inserted into the positioning groove in the lower rotation solid when sliding downwards, the upper rotation solid and the lower rotating solid are located in the positioning state and cannot rotate each other, positioning is carried out through the positioning key, the contact mode is the surface contact mode, the positioning area is large, and the transmission rigidity is high.
Description
Technical field
The present invention relates to a kind of new type of cam positioning key, specifically one kind are applied to large-sized gantry boring-milling center
After turning round with the accessories mill-head landing boring-milling center, the device of positioning, belongs to frame for movement technical field.
Background technology
With the high speed development of China's mechanical industry, the especially development of heavy industry, to numerical control gantry boring-milling center
Get more and more with the demand of the Big Gold process equipments such as numerical control floor boring Milling Machining center；The accessories mill-head of equipment is turned round simultaneously
Positioning it is also proposed higher requirement afterwards.
In prior art, after existing accessories mill-head revolution, positioning uses bearing pin, and the stress of bearing pin and transmission rigidity are asked
Topic is always significant problem in face of each lathe manufacturer for the pendulum.Pin-and-hole adopts jig bore to process mostly, the position essence in hole
Degree is high, but the fit clearance between hole axle is difficult to eliminate, and bearing pin stress is a line, and bearing capacity is also little, and this will directly affect
Positioning precision after accessories mill-head revolution and repetitive positioning accuracy be not so that the precision of accessories mill-head reaches requirement.
Content of the invention
The technical problem to be solved is: overcomes the deficiencies in the prior art, a kind of new type of cam positioning key is provided,
It utilizes face to contact, and locating surface is big, and transmission rigidity is strong.
In order to solve above-mentioned technical problem, the technical scheme is that a kind of new type of cam positioning key, including upper rotary
Body, cam, block, pressing plate, the positioning key of hollow and lower revolving body, described block and pressing plate are fixedly connected with last time swivel
On, cam has the camshaft of eccentric setting, and one end of camshaft is fixedly connected on last time swivel, and the other end is fixedly connected on
On pressing plate, the positioning key of described hollow is enclosed within outside cam, and block, pressing plate and last time swivel jointly surround and make positioning key wherein
The sliding space of sliding up and down, as the cam shaft rotates, the positioning key of hollow moves up and down in sliding space；Described lower revolution
The upper end of body has the locating slot matching with positioning key, and after revolving body revolution instantly puts in place, the positioning key of hollow is with cam
The rotation slide downward of axle is simultaneously inserted in locating slot.
In locating slot further for revolving body under effective insertion, when described camshaft rotates 0 ° or 180 °, hollow
Positioning key is located at upper and lower two extreme positions in sliding space.
Further for being easy to identify the anglec of rotation of last time swivel, described lower revolving body is installed with scale, when
When camshaft rotates 0 °, the positioning key slide downward of hollow is simultaneously inserted in locating slot.
Further, described block is provided with two pieces, is separately mounted to the both sides of the positioning key of hollow.
After employing technique scheme, the method have the advantages that
1) present invention utilizes cam rotation to drive the upper and lower sliding of positioning key of hollow, pluggable lower revolving body during downward sliding
Locating slot in, make upper and lower revolving body be in positioning states, both can not mutually turn round, and positions by positioning key, the way of contact
For face contact, greatly, transmission rigidity is strong for locating surface；
2) what the positioning key of the hollow of the present invention inserted locating slot stretches out the offset that length depends on cam, and offset is big
When, extension elongation is long, offset hour, and extension elongation is short；And, the motion gap of positioning key all can be led to insertion position gap
Cross repair block and pressing plate to adjust, positioning precision is high；
3) present configuration is simple, cam shaft arrangement is reasonable so that compact conformation, saves space, meanwhile, the present invention has relatively
Good positioning function, is delivered to and will appear as good positioning precision and repetitive positioning accuracy and cutting rigidity on accessories mill-head,
Ensure the machining accuracy of accessories mill-head；
4) the features such as present invention also has stable drive in transmission process, noise and vibration are little, bearing capacity is strong, especially
It is applied to numerical control Longmen boring-milling machining center and the accessories mill-head at numerical control floor boring Milling Machining center uses.
Brief description
Fig. 1 is the overall structure diagram of the present invention；
Fig. 2 is the a-a sectional view of Fig. 1；
Fig. 3 is the b-b sectional view of Fig. 1；
Fig. 4 is the schematic front view of the positioning key of hollow of the present invention；
Fig. 5 is the schematic front view of the cam of the present invention；
Fig. 6 is the left view schematic diagram of the cam of the present invention；
In figure, 1, camshaft, 2, the positioning key of hollow, 3, block, 4, screw, 5, pressing plate, 6, screw, 7, last time swivel,
8th, lower revolving body, 9, scale, 10, screw.
Specific embodiment
In order that present disclosure is easier to be clearly understood, below according to specific embodiment and combine accompanying drawing, right
The present invention is described in further detail.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, a kind of new type of cam positioning key, including last time swivel 7, cam,
Block 3, pressing plate 5, the positioning key 2 of hollow and lower revolving body 8, described block 3 is fixedly connected on last time swivel 7 by screw 4,
Pressing plate 5 is fixedly connected on last time swivel 7 by screw 6, and cam has the camshaft 1 of eccentric setting, and one end of camshaft 1 is solid
Surely it is connected on last time swivel 7, the other end is fixedly connected on pressing plate 5, and the positioning key 2 of described hollow is enclosed within outside cam, block
3rd, pressing plate 5 and last time turn 7 sliding spaces jointly surrounding positioning key 2 sliding up and down wherein making hollow, when camshaft 1
During rotation, the positioning key 2 of hollow moves up and down in sliding space；The upper end of described lower revolving body 8 has the positioning with hollow
The locating slot that key 2 matches, after revolving body 8 revolution instantly puts in place, the positioning key 2 of hollow with camshaft 1 rotation to downslide
Move and insert in locating slot.
Alternatively, as shown in figure 1, when described camshaft 1 rotates 0 ° or 180 °, the positioning key 2 of hollow is in sliding space
Positioned at upper and lower two extreme positions.
Preferably, as shown in figure 1, scale 9 is installed with by screw 10 on described lower revolving body 8, when camshaft 1 revolves
When turning 0 °, positioning key 2 slide downward of hollow is simultaneously inserted in locating slot.
Alternatively, as shown in figure 3, described block 3 is provided with two pieces, it is separately mounted to the both sides of the positioning key 2 of hollow.
As shown in figure 4, the middle part of the positioning key 2 of hollow is hollow structure, the top of hollow structure and bottom have different
Thickness.
As shown in figure 5, the camshaft 1 of cam is set for the eccentric, certainly, the cam that other have eccentric structure also can be applied
In the inventive solutions.
Camshaft 1, the positioning key 2 of hollow, block 3 and pressing plate 5 all using medium carbon steel part manufacture, medium carbon steel through quenched simultaneously
Quenching Treatment, intensity is high, and wearability is strong, and durable in use, precision stability is good.
The operation principle of the present invention is as follows:
Rotation camshaft 1, drives the lower revolving body 8 of hollow positioning key 2 upper and lower sliding in sliding space, insertion or disengagement,
The gap of sliding can be realized by repair block 3 and pressing plate 5；Such as, when camshaft 1 rotates to 0 °, hollow positioning key 2
The lower revolving body 8 of bottom insertion, now, upper and lower revolving body is in positioning states；When camshaft 1 rotates to 180 °, then hollow is fixed
Position key 2 is in disengaged condition with lower revolving body 8, then last time swivel 7 can mutually be turned round with lower revolving body 8.
The present invention utilizes cam rotation to drive the upper and lower sliding of positioning key of hollow, can be inserted into lower revolving body during downward sliding
In locating slot, upper and lower revolving body is made to be in positioning states, both can not mutually turn round, and positions by positioning key, the way of contact is
Face contacts, and locating surface is big, and transmission rigidity is strong.
What the positioning key of the hollow of the present invention inserted locating slot stretches out the offset that length depends on cam, and offset is big
When, extension elongation is long, offset hour, and extension elongation is short；And, the motion gap of positioning key all can be led to insertion position gap
Cross repair block and pressing plate to adjust, positioning precision is high.
Present configuration is simple, cam shaft arrangement is reasonable so that compact conformation, saves space, meanwhile, the present invention has preferably
Positioning function, be delivered to will appear as on accessories mill-head good positioning precision and repetitive positioning accuracy and cutting rigidity, protect
Hinder the machining accuracy of accessories mill-head.
The features such as present invention also has stable drive in transmission process, noise and vibration are little, bearing capacity is strong, especially suitable
Accessories mill-head for numerical control Longmen boring-milling machining center and numerical control floor boring Milling Machining center uses.
Particular embodiments described above, to present invention solves the technical problem that, technical scheme and beneficial effect carry out
Further describe, be should be understood that the specific embodiment that the foregoing is only the present invention, be not limited to this
Invention, all any modification, equivalent substitution and improvement within the spirit and principles in the present invention, done etc., should be included in this
Within bright protection domain.
Claims (4)
1. a kind of new type of cam positioning key it is characterised in that: include last time swivel (7), cam, block (3), pressing plate (5), hollow
Positioning key (2) and lower revolving body (8), described block (3) and pressing plate (5) be fixedly connected with last time swivel (7), and cam has
There is the camshaft (1) of eccentric setting, one end of camshaft (1) was fixedly connected on last time swivel (7), and the other end is fixedly connected on
On pressing plate (5), the positioning key (2) of described hollow is enclosed within outside cam, and block (3), pressing plate (5) and last time swivel (7) enclose jointly
Become to make the sliding space of positioning key (2) sliding up and down wherein of hollow, when camshaft (1) rotates, the positioning key (2) of hollow
Move up and down in sliding space；The upper end of described lower revolving body (8) has the positioning matching with the positioning key (2) of hollow
Groove, after revolving body (8) revolution instantly puts in place, the positioning key (2) of hollow with the rotation slide downward of camshaft (1) and insert fixed
In the groove of position.
2. new type of cam positioning key according to claim 1 it is characterised in that: described camshaft (1) rotates 0 ° or 180 °
When, the positioning key (2) of hollow is located at upper and lower two extreme positions in sliding space.
3. new type of cam positioning key according to claim 1 it is characterised in that: described lower revolving body (8) is upper to be fixedly mounted
There is scale (9), when camshaft (1) rotates 0 °, positioning key (2) slide downward of hollow is simultaneously inserted in locating slot.
4. the new type of cam positioning key according to claim 1 or 2 or 3 it is characterised in that: described block (3) is provided with two
Block, is separately mounted to the both sides of the positioning key (2) of hollow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611010610.5A CN106346296B (en) | 2016-11-17 | 2016-11-17 | Cam orientation key |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611010610.5A CN106346296B (en) | 2016-11-17 | 2016-11-17 | Cam orientation key |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106346296A true CN106346296A (en) | 2017-01-25 |
| CN106346296B CN106346296B (en) | 2018-06-29 |
Family
ID=57862963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611010610.5A Active CN106346296B (en) | 2016-11-17 | 2016-11-17 | Cam orientation key |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106346296B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3792639A (en) * | 1972-11-20 | 1974-02-19 | Cole National Corp | Key machine drive |
| DE3236212A1 (en) * | 1982-09-30 | 1984-04-12 | Stephan Dipl.-Ing. 8788 Bad Brückenau Benkert | Centring chuck for rotationally symmetric parts in metrology and test engineering |
| CN2897538Y (en) * | 2005-12-15 | 2007-05-09 | 西安航空发动机（集团）有限公司 | Relieving lathe cam for imcomplete prong R of continuouslly-grinding face hobbing with tooth built-in |
| CN201333625Y (en) * | 2008-10-10 | 2009-10-28 | 江苏飞船股份有限公司 | Milling fixture of lathe for processing spherical oil groove on bevel gear |
| CN104802031A (en) * | 2015-05-12 | 2015-07-29 | 常州机电职业技术学院 | Cam positioning bidirectional continuous indexing worktable |
| CN206153984U (en) * | 2016-11-17 | 2017-05-10 | 常州机电职业技术学院 | Novel cam navigation key |
-
2016
- 2016-11-17 CN CN201611010610.5A patent/CN106346296B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3792639A (en) * | 1972-11-20 | 1974-02-19 | Cole National Corp | Key machine drive |
| DE3236212A1 (en) * | 1982-09-30 | 1984-04-12 | Stephan Dipl.-Ing. 8788 Bad Brückenau Benkert | Centring chuck for rotationally symmetric parts in metrology and test engineering |
| CN2897538Y (en) * | 2005-12-15 | 2007-05-09 | 西安航空发动机（集团）有限公司 | Relieving lathe cam for imcomplete prong R of continuouslly-grinding face hobbing with tooth built-in |
| CN201333625Y (en) * | 2008-10-10 | 2009-10-28 | 江苏飞船股份有限公司 | Milling fixture of lathe for processing spherical oil groove on bevel gear |
| CN104802031A (en) * | 2015-05-12 | 2015-07-29 | 常州机电职业技术学院 | Cam positioning bidirectional continuous indexing worktable |
| CN206153984U (en) * | 2016-11-17 | 2017-05-10 | 常州机电职业技术学院 | Novel cam navigation key |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106346296B (en) | 2018-06-29 |
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