CN211841010U - Positioning connection structure of eccentric pin, tool apron and cutter head - Google Patents
Positioning connection structure of eccentric pin, tool apron and cutter head Download PDFInfo
- Publication number
- CN211841010U CN211841010U CN202020240209.6U CN202020240209U CN211841010U CN 211841010 U CN211841010 U CN 211841010U CN 202020240209 U CN202020240209 U CN 202020240209U CN 211841010 U CN211841010 U CN 211841010U
- Authority
- CN
- China
- Prior art keywords
- outer circle
- hollow cylinder
- circle
- inner circle
- eccentric pin
- 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.)
- Active
Links
Images
Landscapes
- Milling Processes (AREA)
Abstract
The utility model relates to the field of numerical control equipment, and discloses an eccentric pin and a positioning connection structure of a tool apron and a tool pan, which comprises a first hollow cylinder, a second hollow cylinder and an adjusting hole, wherein the excircle of the first hollow cylinder is configured into a first excircle, the inner circle of the first hollow cylinder is configured into a first inner circle, the excircle of the second hollow cylinder is configured into a second excircle, the inner circle of the second hollow cylinder is configured into a second inner circle, the first excircle and the second outer circle are arranged into eccentricity, the first inner circle and the second inner circle are arranged into concentricity, the second excircle and the second inner circle are arranged into concentricity, the first inner circle and the second inner circle form a screw hole, the side wall of the first hollow cylinder is provided with the adjusting hole, the utility model also discloses an application of the tool apron and the positioning structure of the tool pan to the eccentric pin, the installation position of the eccentric pin is adjusted through the adjusting hole, so that the contact ratio of the tool apron and the central plane of the cutter head can be improved, and the installation precision of the tool apron and the cutter head is improved.
Description
Technical Field
The utility model relates to a numerical control equipment field, the location connection structure of an eccentric pin and blade holder and blade disc of a specific design.
Background
The location connection structure of conventional blade holder and blade disc adopts the mode location of key (the protruding key of positioning action is played to the blade holder bottom promptly) and keyway (the location keyway at blade disc top), because machining error, can cause the key of blade holder and the symmetry of the keyway of blade disc to have the error, consequently the central plane coincidence degree error of blade holder and blade disc equipment back two is great, and the requirement of the location connection structure of high accuracy blade holder and blade disc can't be satisfied in this error.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a there is the problem of error in the key of the location connection structure's of solution conventional blade holder and blade disc and the symmetry of keyway, provides an eccentric pin for blade holder and blade disc are connected in the location, improve both symmetry after the equipment.
The utility model adopts the technical proposal that:
an eccentric pin, comprising:
a first hollow cylinder, an outer circle of the first hollow cylinder configured as a first outer circle, an inner circle of the first hollow cylinder configured as a first inner circle;
the outer circle of the second hollow cylinder is configured as a second outer circle, the inner circle of the second hollow cylinder is configured as a second inner circle, the first hollow cylinder is connected with the second hollow cylinder, the first outer circle and the second outer circle are arranged to be eccentric, the first inner circle and the second inner circle are arranged to be concentric, the second outer circle and the second inner circle are arranged to be concentric, and the first inner circle and the second inner circle form a screw hole;
the side wall of the first hollow cylinder is provided with a through hole, the through hole is configured to be an adjusting hole, and the adjusting hole is used for adjusting the mounting position of the eccentric pin.
Further, the deviation size of the circle center of the first outer circle and the circle center of the second outer circle is configured to be an eccentric amount.
Further, a first outer circle of the first hollow cylinder is connected with a first object, and the first object is provided with a key groove matched with the first outer circle.
Further, the width dimension of the key groove is equal to the diameter of the first outer circle, and the length dimension of the key groove is larger than the sum of the diameter of the first outer circle and the eccentricity.
Furthermore, a second outer circle of the second hollow cylinder is connected with a second object, and a positioning hole is formed in the second object and matched with the second outer circle.
Further, the positioning hole is circular, and the diameter of the positioning hole is equal to that of the second outer circle.
Further, the diameter of the first inner circle is larger than the diameter of the second inner circle.
The utility model discloses a there is the problem of error in the key of the location connection structure's of solving conventional blade holder and blade disc and the symmetry of keyway, provides a location connection structure of blade holder and blade disc for blade holder and blade disc are connected in the location, improve the symmetry between them after assembling.
A positioning and connecting structure of a tool apron and a tool pan comprises the eccentric pin, wherein the tool apron is configured as a first object, and the tool pan is configured as a second object.
Furthermore, one side of the bottom of the cutter holder is provided with a protrusion, and the protrusion abuts against the side wall of the cutter head.
Furthermore, the front surface of the cutter holder is provided with a hole, and the hole is used for installing the cutter handle.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides an eccentric pin includes first hollow cylinder, second hollow cylinder and adjustment hole, the blade holder is connected to first hollow cylinder, the blade disc is connected to the second hollow cylinder, when blade holder and blade disc central plane do not coincide, through the mounted position of adjustment hole adjustment eccentric pin, thereby drive blade holder central plane and remove, thereby make the central plane coincidence with two objects of eccentric pin location connection, the location connected structure who solves among the prior art blade holder and blade disc adopts the locate mode of key and keyway, the problem that there is the error because of the symmetry that machining error leads to blade holder and blade disc easily, the utility model provides an eccentric pin can make blade holder and blade disc central plane coincidence degree when the equipment realize adjustably, has improved the installation accuracy of blade holder and blade disc.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is a cross-sectional view of an eccentric pin according to an embodiment of the present invention;
fig. 2 is a top view of an eccentric pin according to an embodiment of the present invention;
fig. 3 is a front view of a positioning and connecting structure of a tool apron and a tool pan according to an embodiment of the present invention;
fig. 4 is a left cross-sectional view of a positioning connection structure of a tool apron and a tool pan provided in an embodiment of the present invention;
fig. 5 is a front view of a tool post provided in an embodiment of the present invention;
fig. 6 is a left side view of the tool post provided in the embodiment of the present invention;
fig. 7 is a bottom view of a tool holder according to an embodiment of the present invention;
in the figure, 1 is a tool apron, 11 is a hole, 12 is a bottom plane, 13 is a bulge, 14 is a key slot, 2 is a tool pan, 3 is an eccentric pin, 31 is a first outer circle, 311 is a first inner circle, 32 is a second outer circle, 321 is a second inner circle, 33 is an adjusting hole, and Φ a is an eccentric amount.
Detailed Description
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 shows an eccentric pin 3 according to an embodiment of the present invention, the eccentric pin 3 includes a first hollow cylinder, a second hollow cylinder and an adjustment hole 33, wherein an outer circle of the first hollow cylinder is configured as a first outer circle 31, an inner circle of the first hollow cylinder is configured as a first inner circle 311, an outer circle of the second hollow cylinder is configured as a second outer circle 32, an inner circle of the second hollow cylinder is configured as a second inner circle 321, the first hollow cylinder is connected to the second hollow cylinder, the first outer circle 31 and the second outer circle 32 are configured to be eccentric, the first inner circle 311 and the second inner circle 321 are configured to be concentric, the second outer circle 32 and the second inner circle 321 are configured to be concentric, the first inner circle 311 and the second inner circle 321 form a screw hole, a side wall of the first hollow cylinder is provided with a through hole, the through hole is configured as the adjustment hole 33, the adjustment hole 33 is used for adjusting an installation position of, thereby displacing the first object connected to the first hollow cylinder.
Specifically, the first hollow cylinder and the second hollow cylinder are integrally formed parts.
It should be noted that, as shown in fig. 2, when the adjusting hole 33 adjusts the installation position of the eccentric pin, the motion track of the first outer circle 31 is circular around the center of the second outer circle 32, and the position of the center of the first outer circle 31 changes while the position of the center of the second outer circle 32 does not change.
Further, as shown in fig. 1 and 2, the deviation size of the center of the first outer circle 31 from the center of the second outer circle 32 is configured as an eccentric amount Φ a, the first outer circle 31 of the first hollow cylinder is connected with the first object, in this embodiment, the first object is configured as a tool holder 1, as shown in fig. 7, the first object is provided with a key groove 14 matched with the first outer circle 31, the width size of the key groove 14 is equal to the diameter of the first outer circle (31), and the length size of the key groove 14 is greater than the sum of the diameter of the first outer circle (31) and the eccentric amount Φ a.
It should be noted that, in this embodiment, when the mounting position of the eccentric pin is adjusted by the adjusting hole 33, because the width of the key slot 14 of the first object is equal to the diameter of the first outer circle (31), and the length of the key slot 14 is greater than the sum of the diameter of the first outer circle (31) and the eccentricity Φ a, when the first outer circle 31 makes a circular motion around the center of the second outer circle 32, the space in the length direction of the key slot 14 is enough for the first outer circle 31 to pass through, so that the first outer circle 31 can drive the first object connected thereto to generate an eccentricity, thereby changing the position of the central plane of the first object.
Further, a second outer circle 32 of the second hollow cylinder is connected to a second object, which is configured as the cutter head 2 in this embodiment, and the second object is provided with a positioning hole, which is matched with the second outer circle 32 and is configured to be circular, and the diameter of the positioning hole is equal to the diameter of the second outer circle 32.
It should be noted that, in the present embodiment, the second outer circle 32 rotates in the positioning hole, and the installation position of the second outer circle 32 does not change, so the central plane of the second object does not change.
The present embodiment enables the center plane of the first object to coincide with the second center plane by changing the position of the center plane of the first object.
Further, the diameter of the first inner circle 311 is larger than the diameter of the second inner circle 321, which facilitates the installation of screws.
The present embodiment further provides a connecting structure of the tool apron 1 and the tool pan 2, which includes the above-mentioned eccentric pin 3, as shown in fig. 3, in the present embodiment, a first object is configured as the tool apron 1, and a second object is configured as the tool pan 2.
Further, as shown in fig. 4 and 6, a protrusion 13 is disposed on one side of the bottom of the tool apron 1, and the protrusion 13 abuts against the side wall of the front face of the cutter head 2, so as to further position the tool apron 1 and the cutter head 2.
Further, as shown in fig. 5, the front surface of the tool holder 1 is provided with a hole 11, and the hole 11 is used for installing a tool shank.
Taking the tool holder 1 and the tool pan 2 as an example, the installation and adjustment process of the eccentric pin 3 in this embodiment will be specifically described:
(1) inserting the second outer circle 32 of the eccentric pin 3 into the positioning hole of the cutter head 2, and adjusting the adjusting hole 33 so that the center of the first outer circle 31 of the eccentric pin 3 and the center of the second outer circle 32 are in the same central plane when seen from the front view of fig. 3;
(2) installing the tool apron 1, positioning the key groove 14 at the bottom of the tool apron 1 and the first excircle 31 of the eccentric pin 3, as shown in fig. 3 and 6, at this time, the bottom plane 12 of the tool apron 1 props against the top of the cutter head 2, and the bulge 13 at the bottom of the tool apron 1 props against the side wall of the front face of the cutter head 2, so that the tool apron 1 is positioned, and then the tool apron 1 is fixed on the cutter head 2 by fastening screws;
(3) measuring the error value of the contact ratio of the central plane of the tool apron 1 and the central plane of the cutter head 2 by using a measuring instrument;
(4) loosening the fastening screw of the tool apron 1, disassembling the tool apron 1, loosening the screw, adjusting the corresponding angle of the eccentric pin 3 according to the error value, and then fastening the screw;
(5) and (3) installing the cutter holder 1 again, and fastening the cutter holder 1 by using a fastening screw when the central plane of the cutter holder 1 and the central plane of the cutter head 2 are superposed.
Specifically, the maximum angle of the tool holder adjustment of the present embodiment is ± 90 degrees.
To sum up, the utility model provides an eccentric pin 3, through the mounted position of adjustment eccentric pin of adjustment hole 33, can improve the central plane contact ratio of blade holder 1 and blade disc 2, improve the installation accuracy of blade holder 1 and blade disc 2.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. An eccentric pin, comprising:
a first hollow cylinder, the outer circle of which is configured as a first outer circle (31), the inner circle of which is configured as a first inner circle (311);
a second hollow cylinder, the outer circle of which is configured as a second outer circle (32), the inner circle of which is configured as a second inner circle (321), the first hollow cylinder being connected to the second hollow cylinder, the first outer circle (31) and the second outer circle (32) being arranged eccentrically, the first inner circle (311) and the second inner circle (321) being arranged concentrically, the second outer circle (32) and the second inner circle (321) being arranged concentrically, the first inner circle (311) and the second inner circle (321) forming a screw hole;
the side wall of the first hollow cylinder is provided with a through hole, the through hole is configured to be an adjusting hole (33), and the adjusting hole (33) is used for adjusting the installation position of the eccentric pin.
2. Eccentric pin according to claim 1, characterized in that the deviation of the centre of the first outer circle (31) from the centre of the second outer circle (32) is dimensioned to be an eccentricity Φ a.
3. Eccentric pin according to claim 2, characterized in that the first outer circle (31) of the first hollow cylinder is connected to a first body provided with a key way (14) cooperating with the first outer circle (31).
4. Eccentric pin according to claim 3, characterized in that the width dimension of the key slot (14) is equal to the diameter of the first outer circle (31) and the length dimension of the key slot (14) is greater than the sum of the diameter of the first outer circle (31) and the eccentricity Φ a.
5. Eccentric pin according to claim 1, characterized in that the second outer circle (32) of the second hollow cylinder is connected to a second object, which is provided with positioning holes, which cooperate with the second outer circle (32).
6. Eccentric pin according to claim 5, characterized in that the positioning hole is provided as a circle, the diameter of which is equal to the diameter of the second outer circle (32).
7. Eccentric pin according to claim 1, characterized in that the diameter of the first inner circle (311) is larger than the diameter of the second inner circle (321).
8. A positioning connection of a tool holder to a tool disc, comprising an eccentric pin according to any of claims 1-7, characterized in that a first object is provided with the tool holder (1) and a second object is provided with the tool disc (2).
9. The positioning and connecting structure of the tool apron and the tool pan as claimed in claim 8, wherein a protrusion (13) is provided at one side of the bottom of the tool apron (1), and the protrusion (13) abuts against the side wall of the tool pan (2).
10. The positioning and connecting structure of the tool apron and the tool pan as claimed in claim 8, wherein a hole (11) is formed in the front surface of the tool apron (1), and the hole (11) is used for mounting a tool shank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020240209.6U CN211841010U (en) | 2020-03-03 | 2020-03-03 | Positioning connection structure of eccentric pin, tool apron and cutter head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020240209.6U CN211841010U (en) | 2020-03-03 | 2020-03-03 | Positioning connection structure of eccentric pin, tool apron and cutter head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211841010U true CN211841010U (en) | 2020-11-03 |
Family
ID=73238299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020240209.6U Active CN211841010U (en) | 2020-03-03 | 2020-03-03 | Positioning connection structure of eccentric pin, tool apron and cutter head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211841010U (en) |
-
2020
- 2020-03-03 CN CN202020240209.6U patent/CN211841010U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102335757A (en) | Cutter tool with fine adjustment for rough and fine hole boring | |
| CN211841010U (en) | Positioning connection structure of eccentric pin, tool apron and cutter head | |
| CN111151774B (en) | Centering method for main shaft and auxiliary shaft of centering machine | |
| CN218556339U (en) | Cam positioning tool | |
| KR102332216B1 (en) | Assembly and centering structures for machining tools | |
| CN214392396U (en) | Eccentric fine boring cutter for semi-circular hole of crosshead | |
| CN212384685U (en) | Adjustable finish machining face milling cutter | |
| CN218873776U (en) | Sled mould position is with improved generation cutter structure | |
| CN207656011U (en) | A kind of modular reamer of major diameter | |
| CN110369741A (en) | Adjustable turning tool | |
| CN221019742U (en) | Broaching machine tool for gear machining | |
| CN105522179A (en) | Chamfering tool with adjustable processing angle | |
| CN220445062U (en) | Spindle box | |
| CN109454254B (en) | Flexible gyroscope adapter threading hole machining method | |
| CN209206560U (en) | A kind of anti-milling cutter of two-sided twolip of centering type | |
| CN217617888U (en) | Boring device for cam hole | |
| CN214602133U (en) | V-shaped positioning single-hole limiting replaceable milling blade | |
| CN210715561U (en) | Bearing with ball limiting function | |
| CN212747576U (en) | End cover threaded hole detection device | |
| CN218135028U (en) | Tool turret tool apron | |
| CN220178758U (en) | Clamping device in appearance location | |
| CN114473069B (en) | Special combined cutter for chamfering valve body | |
| CN214489149U (en) | Novel shallow gate mould frock of discharging | |
| CN210173051U (en) | Boring clamp | |
| CN212125787U (en) | Motor positioning piece for packaging machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |