CN215239240U - Lead screw mounting structure for gantry type machining center - Google Patents
Lead screw mounting structure for gantry type machining center Download PDFInfo
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- CN215239240U CN215239240U CN202120835626.XU CN202120835626U CN215239240U CN 215239240 U CN215239240 U CN 215239240U CN 202120835626 U CN202120835626 U CN 202120835626U CN 215239240 U CN215239240 U CN 215239240U
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Abstract
The utility model provides a lead screw mounting structure for a gantry machining center, which comprises a lead screw and a lead screw nut matched with the lead screw, wherein the lead screw nut is mounted on a nut seat through a fastening screw, and the nut seat is fixedly connected on a main spindle box; the upper end of the lead screw is provided with a bearing assembly and is connected to an upper bearing seat of the integrated sliding seat through the bearing assembly, and the integrated sliding seat is also fixedly connected with the spindle box; the lower end of the screw rod is provided with a coaxial screw rod supporting sleeve and is connected to the lower bearing seat of the integrated sliding seat through the screw rod supporting sleeve, and the screw rod supporting sleeve is coaxial with the upper and lower bearing seats of the integrated sliding seat and has the same precision; one side of the screw support sleeve is provided with a hollowed-out notch along the axial direction of the screw support sleeve so that the screw wrench can install the fastening screw through the hollowed-out notch. The lower bearing seat part of having solved the integral type slide has blockked fastening screw's on the screw nut installation problem, and its suitability is strong, and then guarantees installation accuracy and production efficiency.
Description
Technical Field
The utility model relates to a lead screw mounting structure for planer-type machining center belongs to planer-type machining center (CNC) major structure technical field.
Background
The equipment manufacturing industry places demands on machine tools in industrial applications in terms of higher speed, acceleration, accuracy stability, etc., and therefore in the production of machine tools, it is necessary to meet practical demands by improving or innovating some mechanical structures. At present, various machining mother machines have great progress in part detection methods and measuring tools compared with the prior art, the integrally cast parts are used for replacing a screw connection structure among a plurality of parts, the rigidity of a machine tool can be greatly increased, the time consumed by repair and assembly in the assembly process is reduced, and the actual production cost is not greatly increased.
If the integral slide seat is used as one of main component parts of a gantry machining center (CNC) main body structure and is the basis of Y, Z shaft movement of a machine tool, in order to increase rigidity, bearing seats at two ends of a Z-axis screw rod are cast with the slide seat into a whole to form the integral slide seat. But because the bearing frame is integrative with the slide, the time of assembling screw nut blocks of lower bearing frame, lacks operating space, and the fastening screw on the screw nut will have the installation limited and lead to the problem of installation difficulty.
Disclosure of Invention
To the weak point among the above-mentioned prior art, the utility model provides a lead screw mounting structure for planer-type machining center for the step part of solving the integral type slide has blockked fastening screw's on the screw nut installation problem, and its suitability is strong, and then guarantees installation accuracy and production efficiency.
In order to realize the purpose, the utility model discloses a technical scheme: a lead screw mounting structure for a gantry machining center comprises a lead screw and a lead screw nut matched with the lead screw, wherein the lead screw nut is mounted on a nut seat through a fastening screw, and the nut seat is fixedly connected to a main spindle box; the upper end of the lead screw is provided with a bearing assembly and is connected to an upper bearing seat of the integrated sliding seat through the bearing assembly, and the integrated sliding seat is also fixedly connected with the spindle box; the lower end of the screw rod is provided with a coaxial screw rod supporting sleeve and is connected to the lower bearing seat of the integrated sliding seat through the screw rod supporting sleeve, and the screw rod supporting sleeve is coaxial with the upper and lower bearing seats of the integrated sliding seat and has the same precision; one side of the screw support sleeve is provided with a hollowed-out notch along the axial direction of the screw support sleeve so that the screw wrench can install the fastening screw through the hollowed-out notch.
Furthermore, the mounting hole of the lower bearing seat of the integrated sliding seat is a step hole, the outer edge of the lead screw support sleeve is an annular mounting table, and the mounting table of the lead screw support sleeve is connected to the step of the mounting hole of the integrated sliding seat through a screw.
Furthermore, the central hole of the screw rod supporting sleeve is divided into two sections, the aperture of the lower section of the central hole is larger than that of the upper section, and the lower section is longer than that of the upper section.
Furthermore, the hollowed-out notch of the screw support sleeve can expose at least three fastening screws simultaneously.
Furthermore, the mounting table of the lead screw support sleeve is connected with the steps of the mounting hole of the integrated sliding seat through three screws which are sequentially spaced by 90 degrees; the number of the fastening screws is eight, the fastening screws are symmetrically distributed on two sides, and the fastening screws on one side can be exposed in the hollowed-out notches at the same time.
Compared with the prior art, the beneficial effects of the utility model are that: support the cover through the lead screw and regard as the frock spare in the installation for the lead screw supports the back that targets in place because of being equipped with the fretwork breach on the cover at the lead screw, and can not block screw spanner and pass from it, and screw spanner can reach lead screw nut department installation fastening screw so, fixes lead screw nut and nut seat together, thereby guarantees the installation of lead screw.
This scheme still supports the mount table structure of cover through the step pore structure cooperation lead screw of integral type slide for the lead screw supports the installation location of cover more convenient and accurate, thereby guarantees the installation accuracy of lead screw.
The design of this scheme still through the centre bore to lead screw support cover ensures that the lead screw has the oscillating quantity and the clearance volume of axle head.
This scheme still supports the location setting of cover through the distribution to fastening screw and lead screw, further ensures under the condition of precision, reaches the purpose of quick installation.
This scheme is convenient when guaranteeing assembly accuracy installs the fastening screw on the screw nut, supports integral type slide and screw nut with the lead screw, does not influence the precision, has promoted production efficiency for the lathe is batch production more easily.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is an enlarged view of a portion of the structure shown in the direction P in fig. 1.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments and accompanying drawings.
A lead screw mounting structure for a gantry machining center is shown in figure 1 and comprises a lead screw 7 and a lead screw nut 2 matched with the lead screw, wherein the lead screw nut 2 is mounted on a nut seat 1 through a fastening screw 3, and the nut seat 1 is fixedly connected to a main spindle box 6. The upper end of the lead screw 7 is provided with a bearing assembly and is connected to an upper bearing seat of the integrated sliding seat 4 through the bearing assembly, and the integrated sliding seat 4 is also fixedly connected with the spindle box 6; the lower end of the lead screw 7 is provided with a coaxial lead screw support sleeve 5 and is connected to the lower bearing seat of the integrated sliding seat 4 through the lead screw support sleeve 5, and the lead screw support sleeve 5 is coaxial with the upper and lower bearing seats of the integrated sliding seat 4 and has the same precision; one side of the screw support sleeve 5 is provided with a hollowed notch 51 along the axial direction thereof so that a screw wrench can install the fastening screw 3 through the hollowed notch 51.
This scheme supports cover 5 through the lead screw and regards as the frock spare in the installation for lead screw 7 supports the back that targets in place because of being equipped with fretwork breach 51 on cover 5 is supported to the lead screw, and can not block screw spanner and pass from it, and screw spanner can reach lead screw nut 2 department installation fastening screw 3 so, fixes lead screw nut 2 and nut seat 1 together, thereby guarantees lead screw 7's installation. The screw wrench can be an L-shaped special wrench which is commonly used in the industry.
In order to enable the lead screw supporting sleeve 5 to be mounted and positioned more conveniently and accurately and further ensure the mounting precision of the lead screw 7, the mounting hole of the lower bearing seat of the integrated sliding seat 4 is a step hole, the outer edge of the lead screw supporting sleeve 5 is an annular mounting table, and the mounting table of the lead screw supporting sleeve 5 is in screwed connection with the step of the mounting hole of the integrated sliding seat 4.
In a preferred embodiment, the central hole of the screw support sleeve 5 is divided into two sections, the lower section of the central hole has a larger hole diameter than the upper section and a longer lower section than the upper section, so as to ensure the swinging amount and the clearance amount of the shaft end of the screw and adjust the screw to a certain clearance state.
In order to ensure that the screw support sleeve 5 is not displaced when being positioned, the hollowed-out notch 51 of the screw support sleeve 5 can expose at least three fastening screws 3 at the same time, so that three-point positioning is formed, and the play is avoided.
As shown in fig. 2, as a specific preferred embodiment, the mounting table of the screw support sleeve 5 is connected with the step of the mounting hole of the integrated slide 4 by three screws sequentially spaced by 90 °; eight fastening screws 3 are symmetrically distributed on two sides, and the fastening screws 3 on one side can be simultaneously exposed in the hollow-out notches 51. After the four fastening screws 3 on one side are installed in place, the screw rod supporting sleeve 5 is rotated to the hollow notches 51 corresponding to the four fastening screws 3 on the other side, and then the installation is carried out. The purpose of quick installation can be achieved under the condition of further ensuring the precision.
When the screw 7 is used as a Z-axis screw of a machine tool, the whole assembly process is as follows:
1. mounting the nut seat 1 on a spindle box 6, and adjusting the axis of a central hole of the nut seat 1 and the parallelism of a guide rail motion track of the spindle box 6;
2. aligning the parallelism between the bearing seats at the two ends of the Z-axis lead screw and the mounting surface of the slide block of the slide seat guide rail by using an inspection rod, and ensuring the concentricity of the bearing seats at the two ends;
3. installing a lead screw 7 and bearing assemblies at two ends on the integrated sliding seat 4;
4. assembling a spindle box 6 and an integrated sliding seat 4 together, removing a bearing assembly at the lower end, installing a lead screw support sleeve 5, and fastening a fastening screw 3 on a lead screw nut 2;
5. and then the screw rod supporting sleeve 5 is removed, the bearing assembly at the upper end and the lower end is replaced, and the Z-axis screw rod is assembled.
The technical solutions provided by the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained herein by using specific examples, and the descriptions of the above embodiments are only applicable to help understand the principles of the embodiments of the present invention; meanwhile, for a person skilled in the art, according to the embodiments of the present invention, there may be variations in the specific implementation manners and application ranges, and in summary, the content of the description should not be construed as a limitation to the present invention.
Claims (5)
1. A lead screw mounting structure for a gantry machining center comprises a lead screw (7) and a lead screw nut (2) matched with the lead screw, wherein the lead screw nut (2) is mounted on a nut seat (1) through a fastening screw (3), and the nut seat (1) is fixedly connected to a main spindle box (6); the utility model discloses a lead screw, including lead screw (7), bearing assembly and integrated slide (4), integrated slide (4) also with headstock (6) fixed connection, its characterized in that: the lower end of the screw rod (7) is provided with a coaxial screw rod supporting sleeve (5) and is connected to the lower bearing seat of the integrated sliding seat (4) through the screw rod supporting sleeve (5), and the screw rod supporting sleeve (5) is coaxial with the upper and lower bearing seats of the integrated sliding seat (4) and has the same precision; one side of the screw rod supporting sleeve (5) is provided with a hollowed-out notch (51) along the axial direction of the screw rod supporting sleeve so that a screw wrench can install the fastening screw (3) through the hollowed-out notch (51).
2. The screw mounting structure for a gantry machining center according to claim 1, wherein: the mounting hole of the lower bearing seat of the integrated sliding seat (4) is a step hole, the outer edge of the lead screw supporting sleeve (5) is an annular mounting table, and the mounting table of the lead screw supporting sleeve (5) is in screwed connection with the step of the mounting hole of the integrated sliding seat (4).
3. The screw mounting structure for a gantry machining center according to claim 1, wherein: the central hole of the screw rod supporting sleeve (5) is divided into two sections, the aperture of the lower section of the central hole is larger than that of the upper section, and the lower section is longer than that of the upper section.
4. The screw mounting structure for a gantry machining center according to any one of claims 1 to 3, wherein: the hollow-out notch (51) of the screw support sleeve (5) can expose at least three fastening screws (3) at the same time.
5. The screw mounting structure for a gantry machining center according to claim 4, wherein: the mounting table of the lead screw support sleeve (5) is connected with the steps of the mounting holes of the integrated sliding seat (4) through three screws which are sequentially spaced by 90 degrees; eight fastening screws (3) are symmetrically distributed on two sides, and the fastening screws (3) on one side can be simultaneously exposed in the hollow-out notches (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120835626.XU CN215239240U (en) | 2021-04-22 | 2021-04-22 | Lead screw mounting structure for gantry type machining center |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120835626.XU CN215239240U (en) | 2021-04-22 | 2021-04-22 | Lead screw mounting structure for gantry type machining center |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215239240U true CN215239240U (en) | 2021-12-21 |
Family
ID=79510340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120835626.XU Active CN215239240U (en) | 2021-04-22 | 2021-04-22 | Lead screw mounting structure for gantry type machining center |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215239240U (en) |
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2021
- 2021-04-22 CN CN202120835626.XU patent/CN215239240U/en active Active
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