CN211249278U - Positioning mechanism for automatic tool changing tool holder - Google Patents
Positioning mechanism for automatic tool changing tool holder Download PDFInfo
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- CN211249278U CN211249278U CN201922218789.9U CN201922218789U CN211249278U CN 211249278 U CN211249278 U CN 211249278U CN 201922218789 U CN201922218789 U CN 201922218789U CN 211249278 U CN211249278 U CN 211249278U
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- ram
- cutter holder
- toothed disc
- tool
- tool holder
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Abstract
The utility model discloses an automatic positioning mechanism of tool changing cutter holder belongs to lathe cutter holder technical field. The utility model discloses the main shaft is installed in the ram, taper shank upper portion sets up in the main shaft, taper shank lower part overhang is fixed in the cutter holder upper end, ram end-toothed disc is installed to the ram lower extreme, the cutter holder end-toothed disc is installed to the cutter holder upper end, ram end-toothed disc is concentric with cutter holder end-toothed disc, when the taut cutter holder of main shaft, ram end-toothed disc and cutter holder end-toothed disc intermeshing, the structural style of end-toothed disc meshing loosens the in-process at the ram about adopting, make the cutter holder break away from the ram easily, the structural style of meshing is in the radial positioning who realizes the cutter holder, because the error of each tooth offsets during the meshing, play the effect of error homogenization, reduce the influence of the clearance change between cutter holder and the ram to lathe operating condition by a wide margin, improve the stability of tool changing and the positioning accuracy of tool changing, thereby improve.
Description
Technical Field
The utility model relates to an automatic positioning mechanism of tool changing cutter holder belongs to lathe cutter holder technical field.
Background
At present, the development trend of machine tool products in China is developing towards high efficiency and recombination. The reliability of the automatic tool changing function of the vertical turning center basically occupies the main part of the reliability of the whole machine tool, so that the condition that the tool clamp does not break down in the frequent tool changing process becomes very important. The tool holder of the single-column vertical turning center is generally positioned by combining a taper shank and a positioning key, the taper shank mainly realizes the axial positioning of the tool holder, and the positioning key realizes the radial positioning of the tool holder. However, the tool holder positioning key has higher requirements on the assembly process, and because the positioning key mainly bears the cutting force generated when the tool holder works, the clearance between the positioning key and the ram is not too large, otherwise, the machining precision is influenced. But the fit-up clearance adjustment is little, and in the tool holder in-process is relaxed to the ram, make tool holder and navigation key unable separate completely easily, in case the position of tool holder is greater than with the detection distance of the tool holder detection switch of ram, numerical control system can think that the tool holder has been put into the tool magazine, and the tool holder still hangs on the ram because the navigation key does not throw off completely, if when carrying out the tool changing action of next step this moment again, can cause the tool holder to hit and damage the tool magazine door, even cause the damage to the tool magazine.
SUMMERY OF THE UTILITY MODEL
The utility model provides a not enough to prior art, the utility model provides an automatic positioning mechanism of tool changing cutter holder has avoided the damage that the tool changing in-process may cause cutter holder and tool magazine, improves the stability and the machining precision of lathe, to the axial and radial dual location of cutter holder when still having realized the tool changing.
The utility model provides a technical scheme that its technical problem adopted is: a positioning mechanism for an automatic tool changing tool holder comprises a taper shank, a ram end tooth disc, a tool holder end tooth disc, a tooth disc adjusting pad, a ram, a main shaft and a tool holder; the spindle is mounted in the ram through a screw, the upper part of the taper shank is arranged in the spindle and used for axially positioning the taper shank, and the conical surface of the taper shank plays a role in guiding when the tool is automatically changed;
the lower protruding end of the taper shank is fixed at the upper end of the cutter holder through a screw, the lower end of the ram is provided with a ram end tooth disc through a screw and a positioning pin, and the ram end tooth disc is centered by a positioning spigot of the ram, so that the accuracy of cutter changing is ensured;
the cutter holder end-toothed disc is installed through screw and locating pin in the cutter holder upper end, and installation fluted disc adjustment pad below the cutter holder end-toothed disc, cutter holder end-toothed disc are by the location tang centering of cutter holder, and ram end-toothed disc is concentric with cutter holder end-toothed disc, and when the taut cutter holder of main shaft, ram end-toothed disc and cutter holder end-toothed disc intermeshing realize the accurate positioning of cutter holder.
The fluted disc adjusting pad is used for adjusting the dimension of the cutter holder end fluted disc in the height direction and ensuring the cutter holder end fluted disc to be in good contact with the ram end fluted disc;
the positioning pin is mainly used for bearing the torque of the end-toothed disc stress, and the end-toothed disc of the tool holder and the end-toothed disc of the ram are ensured not to rotate relatively when bearing large cutting force.
Preferably, a taper shank adjusting pad is arranged between the protruding end of the lower part of the taper shank and the lower end of the main shaft, so that when water flows out from the center of the main shaft, the function of central water outlet can be realized, and the components are cooled.
The utility model has the advantages that: an end tooth disc is added between a ram and a tool holder to replace a positioning key, and the tool holder can be easily separated from the ram by adopting a structural form that an upper end tooth disc and a lower end tooth disc are meshed in the process of loosening the tool holder by the ram, so that the tool holder or a tool magazine cannot be damaged; the upper end fluted disc and the lower end fluted disc are meshed with each other, so that the radial positioning of the tool holder is realized, and the error of each tooth is offset during meshing, so that the error is homogenized, the influence of the change of the clearance between the tool holder and the ram on the working state of a machine tool is greatly reduced, and the stability of tool changing and the positioning accuracy of the tool changing are improved; thereby improving the stability and the processing precision of the machine tool.
Drawings
Fig. 1 is a schematic main sectional structure diagram of an embodiment of the present invention.
Fig. 2 is a schematic structural view of a main section of an embodiment of the present invention.
Reference numbers in the figures: 1. taper shank, 2, ram end-toothed disc, 3, cutter holder end-toothed disc, 4, fluted disc adjusting pad, 5, taper shank adjusting pad, 6, ram, 7, main shaft, 8, cutter holder, 9, locating pin, 10, screw.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
As shown in fig. 1 to 2, an embodiment of the present invention provides a positioning mechanism for an automatic tool changing tool holder, which includes a taper shank 1, a ram end-toothed disc 2, a tool holder end-toothed disc 3, a toothed disc adjusting pad 4, a ram 6, a main shaft 7, and a tool holder 8; the spindle 7 is installed in the ram 6 through a screw, the upper part of the taper shank 1 is arranged in the spindle 7 and used for axially positioning the taper shank 1, and the conical surface of the taper shank 1 plays a role in guiding when the tool is automatically changed;
the lower protruding end of the taper shank 1 is fixed at the upper end of the tool holder 8 through a screw 10, the lower end of the ram 6 is provided with a ram end-toothed disc 2 through a screw and a positioning pin 9, and the ram end-toothed disc 2 is centered by a positioning spigot of the ram 6, so that the accuracy of tool changing is ensured;
cutter holder end-toothed disc 3 is installed through screw and locating pin 9 in the 8 upper ends of cutter holder, and installation fluted disc adjustment pad 4 below the cutter holder end-toothed disc 3, and cutter holder end-toothed disc 3 is by the location tang centering of cutter holder 8, and ram end-toothed disc 2 is concentric with cutter holder end-toothed disc 3, and when 7 taut cutter holders 8 of main shaft, ram end- toothed disc 2 and 3 intermeshing of cutter holder end-toothed disc realize the accurate positioning of cutter holder.
The fluted disc adjusting pad 4 is used for adjusting the height dimension of the cutter holder end fluted disc 3 and ensuring that the cutter holder end fluted disc 3 and the ram end fluted disc 2 are in good contact;
the positioning pin 9 is mainly used for bearing the torque of the end-toothed disc stress, and ensures that the end-toothed disc 3 of the tool holder and the end-toothed disc 2 of the ram cannot rotate relatively when bearing large cutting force.
A taper shank adjusting pad 5 is arranged between the taper shank 1 and the lower end of the main shaft 7 and used for adjusting a gap between the main shaft 7 and the taper shank 1, sealing of the end face of the main shaft 7 is achieved, and a central water outlet function can be achieved.
In the process of loosening the tool holder by the ram, the tool holder end tooth disc 3 and the ram end tooth disc 2 are easily separated, so that the protection of the tool holder and the tool magazine is ensured when tools are frequently changed.
Although the embodiments of the present invention are described above, the contents thereof are merely embodiments adopted to facilitate understanding of the technical aspects of the present invention, and are not intended to limit the present invention. Any person skilled in the art can make any modifications and changes in the form and details of the implementation without departing from the core technical solution disclosed in the present invention, but the scope of protection defined by the present invention must still be subject to the scope defined by the appended claims.
Claims (2)
1. The utility model provides an automatic positioning mechanism of tool changing cutter holder which characterized in that: comprises a taper shank (1), a ram end tooth disc (2), a cutter clamp end tooth disc (3), a tooth disc adjusting pad (4), a ram (6), a main shaft (7) and a cutter clamp (8); the main shaft (7) is installed in a ram (6) through screws, the upper portion of a taper shank (1) is arranged in the main shaft (7), the protruding end of the lower portion of the taper shank (1) is fixed to the upper end of a tool holder (8) through a screw (10), the lower end of the ram (6) is provided with a ram end tooth disc (2) through a screw and a positioning pin (9), the ram end tooth disc (2) is centered through a positioning spigot of the ram (6), the upper end of the tool holder (8) is provided with a tool holder end tooth disc (3) through a screw and a positioning pin (9), a tooth disc adjusting pad (4) is installed below the tool holder end tooth disc (3), the tool holder end tooth disc (3) is centered through the positioning spigot of the tool holder (8), and the ram end tooth disc (2) and the tool holder end;
when the main shaft (7) tensions the cutter holder (8), the ram end tooth disc (2) and the cutter holder end tooth disc (3) are meshed with each other, so that the accurate positioning of the cutter holder is realized.
2. The positioning mechanism for an automatic tool changing tool holder according to claim 1, wherein: a taper shank adjusting pad (5) is arranged between the protruding end of the lower part of the taper shank (1) and the lower end of the main shaft (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922218789.9U CN211249278U (en) | 2019-12-12 | 2019-12-12 | Positioning mechanism for automatic tool changing tool holder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922218789.9U CN211249278U (en) | 2019-12-12 | 2019-12-12 | Positioning mechanism for automatic tool changing tool holder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211249278U true CN211249278U (en) | 2020-08-14 |
Family
ID=71982715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922218789.9U Active CN211249278U (en) | 2019-12-12 | 2019-12-12 | Positioning mechanism for automatic tool changing tool holder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211249278U (en) |
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2019
- 2019-12-12 CN CN201922218789.9U patent/CN211249278U/en active Active
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Legal Events
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200901 Address after: Room 1105, science and technology enterprise incubation center, high tech Industrial Development Zone, No. 787, bukui South Street, Longsha District, Qiqihar, Heilongjiang Province Patentee after: Qiqihar No.1 Machine Tool Works Co., Ltd Address before: 161005 Qigihar city in Heilongjiang Province town of Longsha District Road No. 66 Patentee before: QIQIHAR HEAVY CNC EQUIPMENT Co.,Ltd. |