High-precision linear rail mechanism

Abstract

The utility model provides a high-precision linear rail mechanism, and relates to the technical field of numerical control machine tools, the high-precision linear rail mechanism comprises a first main sliding plate, a second main sliding plate, a tool rest plate and a lead screw driving structure, a sliding block is arranged at the top end of the first main sliding plate, and a sliding rail is arranged at the bottom end of the second main sliding plate; the second main sliding plate is matched with the sliding block through the sliding rail and is arranged at the top end of the first main sliding plate in a sliding mode, the tool rest plate is detachably installed on the second main sliding plate, and the lead screw driving structure is installed on the first main sliding plate and is in driving connection with the second main sliding plate. The sliding block mechanism is simple in structure and reasonable in design, the sliding block is arranged on the first main sliding plate located at the bottom end, the gravity center can be kept perpendicular, the second main sliding plate and the installed tool rest plate can accurately slide along the first main sliding plate, and therefore the feeding precision and the machining precision of machining are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of numerical control machine tools, in particular to a high-precision linear rail mechanism. BACKGROUND

[0002] The numerical control lathe is one of the numerical control machine tools which is widely used at present. It is mainly used for cutting machining of shaft parts or disc parts, such as inner and outer cylindrical surface, inner and outer conical surface with any taper angle, complex rotary inner and outer curved surface, cylindrical thread and conical thread, and can also be used for cutting, drilling, reaming, reaming and boring. The inclined bed linear rail numerical control lathe is one of the numerical control lathes, which can well adjust the turning angle of the workpiece, so it is widely used.

[0003] The linear rail mechanism used in the current numerical control lathe, in which the sliding plate is directly driven by a lead screw structure, cannot ensure that the center of gravity is in a vertical position, so the feeding and machining accuracy cannot be guaranteed.

[0004] In view of this, the present application aims to provide a high-precision linear rail mechanism to better solve the above technical problems. SUMMARY

[0005] The purpose of the embodiment of the present application is to provide a high-precision linear rail mechanism which can solve the technical problems of vertical center of gravity, accurate feeding and machining of the linear rail mechanism.

[0006] The embodiment of the present application provides a high-precision linear rail mechanism, which comprises a first main sliding plate, a second main sliding plate, a tool holder plate and a lead screw driving structure. The top end of the first main sliding plate is provided with a sliding block. The bottom end of the second main sliding plate is provided with a sliding rail. The second main sliding plate is slidingly arranged at the top end of the first main sliding plate through the cooperation of the sliding rail and the sliding block. The tool holder plate is detachably mounted on the second main sliding plate. The lead screw driving structure is mounted on the first main sliding plate and drivingly connected with the second main sliding plate to drive the second main sliding plate to slide along the first main sliding plate.

[0007] Further, the sliding rail is provided with a group, and the group of sliding rails is arranged on both sides of the bottom end of the second main sliding plate. The sliding block is arranged in cooperation with the sliding rail.

[0008] Further, the bottom end of the second main sliding plate is used to set a limiting strip for limiting the installation position of the sliding rail, and the sliding rail is fixed to the second main sliding plate by screwing.

[0009] Further, the lead screw driving structure is provided with a motor bracket, a lead screw, a nut seat and a driving motor. The motor bracket and the lead screw are arranged on the first main sliding plate respectively. The nut seat is arranged on the lead screw and connected with the second main sliding plate. The driving motor is mounted on the motor bracket and drivingly connected with the lead screw.

[0010] Further, the bottom end of the first main slide plate is provided with a sliding block and a nut connecting seat, and the sliding block is vertically distributed with the sliding block to realize the vertical sliding guide.

[0011] Further, the knife holder plate is provided with a plurality of installation grooves.

[0012] Further, the knife holder plate is screw-connected to the second main slide plate.

[0013] The utility model discloses the beneficial effect that:

[0014] The utility model provides a high accuracy linear rail mechanism, including first main slide plate, second main slide plate, knife holder plate and screw drive structure, the top of first main slide plate is equipped with the sliding block, the bottom of second main slide plate is equipped with slide rail, second main slide plate is set up in the top of first main slide plate through the cooperation of slide rail with sliding block, the knife holder plate is detachably installed on second main slide plate, screw drive structure is installed in first main slide plate, and with second main slide plate drive connection, to drive second main slide plate along first main slide plate slides, the utility model discloses simple structure, and reasonable in design, through setting up the sliding block in the first main slide plate of bottom end, can make the gravity keep vertical, make the accurate sliding of second main slide plate and the knife holder plate of installation along first main slide plate, to improve the feeding and processing precision of mechanical processing. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope, and for the ordinary skilled in the art, other related drawings can also be obtained without creative labor according to these drawings.

[0016] Figure 1 For the structural schematic diagram of some embodiments of the utility model;

[0017] Figure 2 For Figure 1 The structural schematic diagram of another view;

[0018] Figure 3 For the connection schematic diagram of screw drive structure and second main slide plate in some embodiments of the utility model.

[0019] The reference signs are respectively:

[0020] First main slide plate 1, sliding block 11, sliding block 12, nut connecting seat 13, second main slide plate 2, slide rail 21, limiting strip 22, knife holder plate 3, installation groove 31, screw drive structure 4, motor bracket 41, lead screw 42, nut seat 43, drive motor 44. DETAILED DESCRIPTION

[0021] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings. Obviously, the described embodiments are only some but not all of the embodiments of the present application. The components of the embodiments of the present application described and shown in the accompanying drawings can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative work fall within the scope of the present application.

[0023] It should be noted that similar reference numerals and letters in the following drawings represent similar items, and therefore, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings.

[0024] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the application is usually placed, and are merely for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0025] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that it is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0026] In the description of the present application, it should also be noted that unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0027] Referring to Figures 1-3 As shown in the drawings, the high-precision linear rail mechanism described in this embodiment comprises a first main slide plate 1, a second main slide plate 2, a tool holder plate 3, and a lead screw driving structure 4. The first main slide plate 1 is provided with a sliding block 11 at the top end. The second main slide plate 2 is provided with a sliding rail 21 at the bottom end. The second main slide plate 2 is slidingly arranged at the top end of the first main slide plate 1 through the cooperation of the sliding rail 21 and the sliding block 11. The tool holder plate 3 is detachably installed on the second main slide plate 2. The lead screw driving structure 4 is installed on the first main slide plate 1 and drivingly connected with the second main slide plate 2 to drive the second main slide plate 2 to slide along the first main slide plate 1.

[0028] The structure of this embodiment is simple and reasonable. By arranging the sliding block 11 on the first main slide plate 1 at the bottom end, the center of gravity can be kept vertical, and the accurate sliding of the second main slide plate 2 and the installed tool holder plate 3 along the first main slide plate 1 can be realized, so as to improve the feeding and machining precision of the machining.

[0029] Specifically, in this embodiment, the first main slide plate 1 serves as a Z-axis main slide plate, and the second main slide plate 2 serves as an X-axis main slide plate, so as to realize flexible linear movement on the XZ axis.

[0030] In some embodiments, the sliding rail 21 is provided in a group. The sliding rail 21 is arranged on both sides of the bottom end of the second main slide plate 2.

[0031] Specifically, the bottom end of the second main slide plate 2 is used to arrange a limiting strip 22 for limiting the installation position of the sliding rail 21. The sliding rail 21 is fixedly screwed to the second main slide plate 2.

[0032] In this embodiment, the sliding rail 21 is arranged on both sides of the bottom end of the second main slide plate 2 in a group, which enhances the stability and load-bearing capacity of the sliding of the second main slide plate 2. At the same time, it helps to maintain the stability and precision of the linear rail mechanism under high speed or heavy load conditions. By arranging the limiting strip 22 at the bottom end of the second main slide plate 2, the installation position of the sliding rail 21 is limited, which ensures the accuracy and stability of the installation of the sliding rail 21, reduces the error caused by misalignment, and improves the operation precision of the linear rail mechanism.

[0033] In some embodiments, the lead screw driving structure 4 is provided with a motor bracket 41, a lead screw 42, a nut seat 43, and a driving motor 44. The motor bracket 41 and the lead screw 42 are arranged on the first main slide plate 1 respectively. The nut seat 43 is arranged on the lead screw 42 and connected with the second main slide plate 2. The driving motor 44 is installed on the motor bracket 41 and drivingly connected with the lead screw 42.

[0034] The embodiment drives the motor 44 to rotate the screw rod 42, moves the nut seat 43 on the screw rod 42, and drives the second main slide plate 2 to slide, so as to realize high-precision and high-efficiency driving.

[0035] In some embodiments, the bottom end of the first main slide plate 1 is provided with a sliding block 12 and a nut connecting seat 13, and the sliding block 12 is vertically distributed with the sliding block 11 to realize vertical sliding guide.

[0036] In the embodiment, the sliding block 12 and the nut connecting seat 13 are arranged at the bottom end of the first main slide plate 1 and are vertically distributed with the sliding block 11, which can be slidingly installed on another driving mechanism to realize sliding guide of the linear rail mechanism in another direction, thereby increasing the movement degree of freedom of the linear rail mechanism and enabling the linear rail mechanism to perform precise machining in a multi-dimensional space.

[0037] In some embodiments, the tool holder plate 3 is provided with a plurality of mounting grooves 31.

[0038] In the embodiment, the plurality of mounting grooves 31 are arranged on the tool holder plate 3, so that the tool or clamp can be conveniently installed and replaced, and the structure is simple and convenient to use.

[0039] Specifically, the tool holder plate 3 is screw-coupled to the second main slide plate 2.

[0040] In the embodiment, the tool holder plate 3 is screw-coupled to the second main slide plate 2, so that the stability of installation of the tool holder plate 3 is ensured and the tool holder plate 3 can be easily disassembled and replaced, and the structure is simple and convenient to use.

[0041] The above is only a preferred embodiment of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A high-precision linear rail mechanism, characterized by: The utility model provides a cutting machine, including first main slide, second main slide, tool rest plate and screw drive structure, first main slide top end is equipped with sliding block, second main slide bottom end is equipped with slide rail, second main slide is through slide rail with sliding block cooperation, sliding mode sets up in first main slide top end, tool rest plate is detachable installation in second main slide, screw drive structure is installed in first main slide, and with second main slide drive connection, to drive second main slide along first main slide slides.

2. The high-precision linear rail mechanism according to claim 1, characterized by: The slide rail is provided with a group, and the slide rail is arranged on both sides of the bottom end of the second main slide.

3. The high precision linear rail mechanism according to claim 2, characterized by: The bottom end of the second main slide is used to set a limiting strip for limiting the installation position of the slide rail, and the slide rail is fixed to the second main slide by screwing.

4. The high precision linear rail mechanism of claim 1, wherein: The screw drive structure is provided with a motor frame, a lead screw, a nut seat and a driving motor, the motor frame and the lead screw are respectively arranged on the first main slide, the nut seat is arranged on the lead screw and connected with the second main slide, and the driving motor is installed on the motor frame and connected with the lead screw.

5. The high precision linear rail mechanism of claim 1, wherein: The bottom end of the first main slide is provided with a sliding block and a nut connecting seat, and the sliding block and the sliding block are vertically distributed to realize vertical sliding guide.

6. The high precision linear rail mechanism of claim 1, wherein: The tool rest plate is provided with a plurality of installation grooves.

7. The high precision linear rail mechanism of claim 1, wherein: The tool rest plate is screw-connected to the second main slide.

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