Automatic displacement mechanism of numerical control machine tool

Abstract

The utility model belongs to numerical control machine tool field relates to numerical control machine tool assembly, especially numerical control machine tool automatic displacement mechanism, including bottom plate, the bottom plate is fixedly connected with two slide rails, each slide rail is connected with two sliding blocks, the sliding block is connected with sliding flat plate, the both sides of sliding flat plate are provided with recess, the recess is inserted with first locating plate, the recess bottom is provided with positioning hole, the first locating plate is provided with strip hole to corresponding positioning hole, the one end of first locating plate is connected with L board away from sliding flat plate, the one end of L board is connected with first limit board below first locating plate, first limit board sets up vertically, first limit board is connected with second limit board, second limit board sets up horizontally.

Description

Technical Field

[0001] This utility model belongs to the field of CNC machine tools, and relates to CNC machine tool assembly, and particularly to an automatic displacement mechanism for CNC machine tools. Background Technology

[0002] In the assembly of automatic displacement mechanisms (linear motor modules) for CNC machine tools, it is not enough to simply fix the components with bolts. Attention must be paid to assembly precision. Precision testing must be performed during assembly, and the assembly error must be controlled within 2 micrometers (inclusive). If the error is large, adjustments are necessary. Since it is difficult to move mechanical parts with micrometer-level precision manually, methods such as tapping are often used to move them, but the distance moved each time is not easy to control. Therefore, the assembly of linear motor modules is very time-consuming. For example, in the assembly of the platform slide and sliders, the platform slide typically connects to four sliders, each with four threaded holes. Therefore, fixing the platform slide requires 16 bolts. Even if the platform slide is calibrated, the tightening of these 16 bolts may cause the platform slide to deflect. Summary of the Invention

[0003] To address the aforementioned problems, this utility model provides an automatic displacement mechanism for CNC machine tools.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an automatic displacement mechanism for a CNC machine tool, comprising a base plate, two slide rails fixedly connected to the base plate, two sliders slidably connected to each slide rail, a sliding plate connected to each slider, grooves provided on both sides of the sliding plate, a first positioning plate inserted into the grooves, a positioning hole provided at the bottom of the grooves, a strip-shaped hole provided on the first positioning plate corresponding to the positioning hole, an L-plate connected to the end of the first positioning plate away from the sliding plate, a first limiting plate connected to the end of the L-plate below the first positioning plate, the first limiting plate being vertically arranged, a second limiting plate connected to the first limiting plate, and the second limiting plate being horizontally arranged.

[0005] Preferably, the width of the groove is the same as the width of the first positioning plate.

[0006] Preferably, the first limiting plate is provided with two limiting grooves at both ends of the second limiting plate, and the length of the limiting grooves is the same as the length of the slider.

[0007] Preferably, a second positioning plate is provided between the L-plate and the side of the sliding plate, and a third limiting plate is connected to the second positioning plate. The third limiting plate is located above the sliding plate and has a through hole for bolts to pass through.

[0008] Compared with the prior art, the advantages and positive effects of this utility model are as follows: The sliding plate of this invention has grooves on both sides. A first positioning plate is inserted into the grooves, and an L-plate overlaps the vertical side of the sliding plate, while a first limiting plate overlaps the vertical side of the base plate. This ensures that there is no relative deflection between the sliding plate and the base plate, thus eliminating errors. Simultaneously, a slider hidden beneath the sliding plate is pressed against the second limiting plate, determining the distance between the two sliders. This reduces the time required to align the countersunk hole of the sliding plate with the threaded hole of the slider. Therefore, this invention eliminates the need for multiple adjustments to the sliding platform position, significantly reducing assembly time. The first and second positioning plates are detachable after the automatic displacement mechanism is assembled for repeated use. Attached Figure Description

[0009] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0010] Figure 1 This is a schematic diagram of the structure of Example 1; Figure 2 for Figure 1 Enlarged view of the structure at point A in the middle; Figure 3 This is a partial structural diagram of Example 1; Figure 4 This is a schematic diagram of the structure of Example 2; Figure 5 for Figure 4 Enlarged view of the structure at point B in the middle; Figure 6 This is a partial structural diagram of Example 2. In the above figures, 1 is the base plate; 2 is the slide rail; 3 is the slider; 4 is the sliding plate; 5 is the groove; 6 is the first positioning plate; 7 is the strip hole; 8 is the L-plate; 9 is the first limiting plate; 10 is the second limiting plate; 11 is the limiting groove; 12 is the motor base; 13 is the second positioning plate; 14 is the third limiting plate; and 15 is the through hole. Detailed Implementation

[0011] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0012] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0013] Example 1 like Figures 1-6 As shown, an automatic displacement mechanism for a CNC machine tool includes a base plate 1, on which two slide rails 2 are fixedly connected. Each slide rail 2 is slidably connected to two sliders 3. A sliding plate 4 is connected above the sliders 3. The mechanism also includes a servo motor, a lead screw, a bearing housing, and a lead screw nut (not shown in the figure) for automation. To facilitate assembly, the diameter of the countersunk hole on the sliding plate 4 is larger than the bolt diameter. Therefore, there is an error during the installation of the sliding plate 4, meaning the sliding platform may deflect.

[0014] To reduce the work of correcting the position of the sliding platform during installation, grooves 5 are provided on both sides of the sliding plate 4. A first positioning plate 6 is inserted into the grooves 5. The grooves 5 and countersunk holes on the sliding plate 4 are formed by CNC milling, so the position / spacing of the grooves 5 and countersunk holes is determined correctly. A positioning hole is provided at the bottom of the groove 5. The first positioning plate 6 is provided with a strip hole 7 corresponding to the positioning hole. The positioning hole is provided with internal thread, so the first positioning plate 6 is positioned in the groove 5 using bolts. An L-plate 8 is connected to the end of the first positioning plate 6 away from the sliding plate 4. A first limiting plate 9 is connected to the end of the L-plate 8 below the first positioning plate 6. The first limiting plate 9 is set vertically and is used to overlap with the vertical side of the base plate 1. A second limiting plate 10 is connected to the first limiting plate 9. The second limiting plate 10 is set horizontally and is inserted between the two sliders 3.

[0015] The installation method of this utility model is as follows: The sliding plate 4 is overlapped on the slider 3 and the nut seat. The first positioning plate 6 is inserted into the groove 5, the second limiting plate 10 is inserted between the two sliders 3, and the first limiting plate 9 overlaps with the vertical side of the base plate 1. The two sliders 3 are moved to overlap with the second limiting plate 10, thereby determining the distance between the two sliders 3. The side of the sliding plate 4 is moved to overlap with the L plate 8, so that the vertical side of the sliding plate 4 is parallel to the vertical side of the base plate 1, so that the sliding plate 4 does not deflect relative to the base plate 1, and the holes of the sliding plate 4 and the slider 3 are automatically aligned. Then, the sliding plate 4 and the first positioning plate 6 are connected with bolts, and the sliding plate 4 and the slider 3 are connected with bolts.

[0016] Furthermore, the width of the groove 5 is the same as the width of the first positioning plate 6.

[0017] Furthermore, the first limiting plate 9 is provided with two limiting grooves 11 at both ends of the second limiting plate 10. The length of the limiting grooves 11 is the same as the length of the slider 3. The two sliders 3 are inserted into the two limiting grooves 11 so that the distance between the two sliders 3 does not change when the sliding plate 4 is moved.

[0018] Example 2 Furthermore, a second positioning plate 13 is provided between the L plate 8 and the side of the sliding plate 4. The second positioning plate 13 is connected to a third limiting plate 14. The third limiting plate 14 is horizontally positioned above the sliding plate 4 and has a through hole for bolts to pass through.

[0019] Specifically, in order to further facilitate the positioning of the motor mount 12 / spindle mount, etc. installed on the sliding plate 4, after the sliding plate 4 is installed, the bolts fixing the first positioning plate 6 are removed to increase the distance between the L plate 8 and the sliding plate 4. Then, the second positioning plate 13 is inserted between the L plate 8 and the sliding plate 4. After the two clamp the second positioning plate 13, the sliding plate 4 and the first positioning plate 6 are fixedly connected with bolts. The motor mount 12 is placed on the sliding plate 4 and overlapped with the third limiting plate 14, thereby ensuring that there is no relative deflection between the motor mount 12 and the sliding plate 4.

[0020] In addition, after installation, the first positioning plate 6 and the second positioning plate 13 can be removed.

[0021] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An automatic displacement mechanism for a CNC machine tool, comprising a base plate, wherein two slide rails are fixedly connected to the base plate, each slide rail is slidably connected to two sliders, and each slider is connected to a sliding plate, characterized in that, The sliding plate has grooves on both sides, and a first positioning plate is inserted into the groove. A positioning hole is provided at the bottom of the groove. The first positioning plate has a strip hole corresponding to the positioning hole. An L-plate is connected to the end of the first positioning plate away from the sliding plate. A first limiting plate is connected to the end of the L-plate below the first positioning plate. The first limiting plate is vertically set. A second limiting plate is connected to the first limiting plate. The second limiting plate is horizontally set.

2. The automatic displacement mechanism for a CNC machine tool according to claim 1, characterized in that, The width of the groove is the same as the width of the first positioning plate.

3. The automatic displacement mechanism for a CNC machine tool according to claim 1, characterized in that, The first limiting plate has two limiting grooves at both ends of the second limiting plate, and the length of the limiting grooves is the same as the length of the slider.

4. The automatic displacement mechanism for a CNC machine tool according to claim 1, characterized in that, A second positioning plate is provided between the L-plate and the side of the sliding plate. The second positioning plate is connected to a third limiting plate. The third limiting plate is located above the sliding plate and has a through hole for bolts to pass through.

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