Linear rail mechanism of numerical control machine tool

Abstract

The utility model provides a linear rail mechanism of a numerical control machine tool. The linear rail mechanism comprises a main body mechanism and a protection mechanism, the main body mechanism comprises a guide rail and a base, the guide rail is installed on one side of the base, one side of the guide rail is sleeved with a movable part, the two sides of the movable part are symmetrically provided with tool aprons, one side of each tool apron is provided with a scraper, and one side of the movable part is provided with an electromagnet; the protection mechanism comprises an organ type protection cover and a connecting frame, the organ type protection cover is arranged on one side of the guide rail, and the connecting frame is fixedly connected with one side of the organ type protection cover; the electromagnet is arranged to attract the metal block, so that the movable piece can drive the organ-type protective cover to unfold through magnetic attraction, the guide rail can be protected through the organ-type protective cover when needed, scrap iron and cooling liquid are prevented from entering the guide rail, and abrasion of the guide rail is increased; and the movable piece is matched with the scraper to scrape scraps attached to the surface of the guide rail, surface abrasion of the guide rail is reduced, and the service life of the guide rail is prolonged.

Description

Technical Field

[0001] The utility model relates to a linear rail mechanism, in particular to a linear rail mechanism for a numerically controlled machine tool, and belongs to the technical field of linear rails for numerically controlled machine tools. Background Art

[0002] CNC machine tool is the abbreviation of digital control machine tool. It is an automated machine tool equipped with a program control system. The control system can logically process programs specified by control codes or other symbolic instructions, decode them, and express them in coded numbers. The information carrier is input into the CNC device. After calculation and processing, the CNC device sends various control signals to control the action of the machine tool and automatically process the parts according to the shape and size required by the drawing. CNC machine tools have better solved the problems of complex, precise, small batch and multi-variety parts processing. It is a flexible and high-efficiency automated machine tool, representing the development direction of modern machine tool control technology and a typical mechatronics product. Guide rails refer to grooves or ridges made of metal or other materials, which can bear, fix, guide moving devices or equipment and reduce their friction. The longitudinal grooves or ridges on the surface of the guide rails are used to guide and fix machine parts, special equipment, instruments, etc. Guide rails are also called slide rails, linear guide rails, and linear slide rails. They are used in linear reciprocating motion occasions. They have higher rated loads than linear bearings and can bear a certain torque. They can achieve high-precision linear motion under high load conditions.

[0003] A Chinese patent publication (CN202321140133.X) discloses a linear rail assembly for a numerically controlled machine tool. The assembly has the advantages of cleaning components and can clean the surface of the slide rail by using an elastic cleaning plate, a lateral positioning block, a longitudinal positioning block, a connecting column, a buffer spring, a limit block and a mounting hole. The debris generated during the machining process of the numerically controlled machine tool will not adhere to the surface of the slide rail, and there will be no large friction between the slide rail and the slider, thereby protecting the slide rail and the slider. However, the application still has the following technical problems when in use: when in use, the linear rail only removes surface debris, lacks overall protective measures, and cannot intercept a large amount of debris and coolant when they are generated, resulting in coolant and iron chips easily entering the guide rail during cutting, increasing the wear of the guide rail and affecting the normal use of the guide rail;

[0004] In order to solve the above technical problems, a linear guide mechanism for a CNC machine tool is proposed. Utility Model Content

[0005] In view of this, the utility model provides a linear rail mechanism for a numerically controlled machine tool to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial choice.

[0006] The technical solution of the utility model is implemented as follows: a linear rail mechanism for a numerically controlled machine tool, comprising a main body mechanism and a protection mechanism;

[0007] The main body mechanism comprises a guide rail and a base, wherein the guide rail is installed on one side of the base, a movable part is sleeved on one side of the guide rail, knife seats are symmetrically arranged on both sides of the movable part, a scraper is arranged on one side of the knife seat, and an electromagnet is installed on one side of the movable part;

[0008] The protective mechanism includes an accordion-type protective cover and a connecting frame. The accordion-type protective cover is arranged on one side of the guide rail. The connecting frame is fixedly connected to one side of the accordion-type protective cover. One side of the connecting frame is symmetrically threaded with a first bolt. One end of the first bolt is threadedly connected to the base. One side of the accordion-type protective cover is fixedly connected to a metal block.

[0009] Further preferably, two connecting plates are symmetrically fixedly connected to one side of the base, and screw holes are symmetrically opened inside the connecting plates.

[0010] Further preferably, a guide groove is symmetrically integrally formed on one side of the base, and a limit strip is symmetrically fixedly connected to one side of the base.

[0011] Further preferably, a collection box is provided on both sides of the base, and insertion holes are symmetrically opened on both sides of the base, and an insertion rod is inserted into the inside of the insertion hole, and one end of the insertion rod is fixedly connected to the collection box.

[0012] Further preferably, a clamping groove is provided on one side of the knife seat, a second elastic member is fixedly connected inside the clamping groove, and the scraper is clamped to the knife seat via the clamping groove.

[0013] Further preferably, connecting seats are provided on both sides of the movable part, one side of the connecting seat is symmetrically fixedly connected with a first elastic part, one side of the knife seat is clamped with the first elastic part, one side of the connecting seat is symmetrically threadedly connected with a third bolt, one end of the third bolt passes through the knife seat, one side of the connecting seat is symmetrically threadedly connected with a second bolt, and one end of the second bolt is threadedly connected to the movable part.

[0014] The embodiment of the utility model has the following advantages due to the adoption of the above technical solution:

[0015] 1. The utility model arranges an electromagnet to absorb the metal block, so that the movable part can drive the accordion-type protective cover to unfold through magnetic attraction, so that the guide rail can be protected by the accordion-type protective cover when needed, to prevent iron filings and coolant from entering the guide rail and causing increased wear of the guide rail, and the movable part cooperates with the scraper to scrape off the debris adhered to the surface of the guide rail, thereby reducing the wear of the surface of the guide rail and extending the service life of the guide rail;

[0016] Second, the utility model installs and fixes the scraper by setting a connecting seat in cooperation with the knife seat, so that the scraper can be removed and replaced when necessary, and a first elastic member and a second elastic member are provided to reduce the influence of the scraper vibration on the movable part.

[0017] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a structural diagram of the utility model;

[0020] Figure 2 This is a connection structure diagram of the collection box in the utility model;

[0021] Figure 3 This is a connection structure diagram of the accordion-type protective cover in the utility model;

[0022] Figure 4 This is a diagram of the installation structure of the scraper in the utility model.

[0023] Figure numerals: 10, main body; 11, guide rail; 12, base; 13, connecting plate; 14, screw hole; 15, plug hole; 16, plug rod; 17, collection box; 18, limit strip; 19, guide groove; 20, protection mechanism; 21, accordion-type protective cover; 22, metal block; 23, connecting frame; 24, first bolt; 25, electromagnet; 31, movable part; 32, connecting seat; 33, second bolt; 34, third bolt; 35, first elastic part; 36, knife seat; 37, scraper; 38, slot; 39, second elastic part. DETAILED DESCRIPTION

[0024] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0025] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0026] like Figure 1-4 As shown, an embodiment of the utility model provides a linear rail mechanism for a CNC machine tool, which is composed of a main mechanism 10 and a protection mechanism 20.

[0027] The main mechanism 10 includes a guide rail 11, a base 12 and a movable member 31. The movable member 31 is installed on one side of the guide rail 11. The movable member 31 is slidably connected to the guide rail 11. The guide rail 11 is installed on one side of the base 12. Connecting seats 32 are provided on both sides of the movable member 31. The interior of the connecting seat 32 is symmetrically threaded with a second bolt 33. One end of the second bolt 33 is threadedly connected to the movable member 31. The second bolt 33 facilitates the connection and fixation between the connecting seat 32 and the movable member 31. One side of the connecting seat 32 is fixedly connected to two first elastic members 3 5. A knife seat 36 is clamped inside the first elastic member 35. The first elastic member 35 is arranged at the connection between the knife seat 36 and the connecting seat 32 to prevent the vibration generated at the scraper 37 from affecting the movable member 31. Two third bolts 34 are threadedly connected to one side of the connecting seat 32. One end of the third bolt 34 is threadedly connected to the knife seat 36. The knife seat 36 is quickly connected to the connecting seat 32 through the third bolt 34, so that the knife seat 36 can be removed when needed. A clamping groove 38 is provided on one side of the knife seat 36. A scraper 37 is clamped on one side of the knife seat 36 through the clamping groove 38.

[0028] In one embodiment, the scraper 37 is made of synthetic plastic so that the scraper 37 will not wear the guide rail 11 while scraping away the debris and coolant.

[0029] In one embodiment, a second elastic member 39 is fixedly connected to the interior of the slot 38 , and the second elastic member 39 allows the scraper 37 to be pressed inward when obstructed, thereby preventing the scraper 37 from being partially damaged.

[0030] In one embodiment, in order to facilitate installation and fixation of the base 12 , two connecting plates 13 are symmetrically fixedly connected to one side of the base 12 , and screw holes 14 are symmetrically opened inside the connecting plates 13 .

[0031] In one embodiment, in order to facilitate the collection of debris and coolant scraped off by the scraper 37, a collection box 17 is provided on both sides of the base 12, and holes 15 are symmetrically opened on both sides of the base 12. An insertion rod 16 is inserted into the inside of the insertion hole 15, and one end of the insertion rod 16 is fixedly connected to the collection box 17.

[0032] The protective mechanism 20 includes an accordion-type protective cover 21, a connecting frame 23 and an electromagnet 25. The accordion-type protective cover 21 is arranged on one side of the guide rail 11 and is used to shield and protect the guide rail 11. The connecting frame 23 is fixedly connected to one side of the accordion-type protective cover 21. One side of the connecting frame 23 is symmetrically threaded with a first bolt 24. One end of the first bolt 24 is threadedly connected to the base 12. The first bolt 24 cooperates with the connecting frame 23 to fix one side of the accordion-type protective cover 21 to the base 12. One side of the accordion-type protective cover 21 is fixedly connected with a metal block 22. The electromagnet 25 is installed on one side of the movable part 31. The metal block 22 is made of magnetic metal and can be adsorbed by the electromagnet 25, so that the accordion-type protective cover 21 can be unfolded by adsorbing the metal block 22 through the movable part 31 and the electromagnet 25.

[0033] In one embodiment, in order to prevent the accordion-type protective cover 21 from shifting when unfolded, a guide groove 19 is symmetrically formed on one side of the base 12, and a limiting strip 18 is symmetrically fixedly connected to one side of the base 12 to limit the bottom of the accordion-type protective cover 21 to prevent the accordion-type protective cover 21 from shifting and making it impossible to block and protect the guide rail 11.

[0034] When the utility model is in operation: the base 12 is installed at a designated position by means of fixing screws and other parts in cooperation with the screw holes 14 and the connecting plate 13; when cutting, the movable part 31 is moved to below the accordion-type protective cover 21, and the electromagnet 25 is started, when the electromagnet 25 absorbs the metal block 22, the movable part 31 is moved, and the accordion-type protective cover 21 is driven to unfold by the movable part 31 cooperating with the electromagnet 25 to absorb the metal block 22, so as to shield and protect the guide rail 11, and prevent iron filings and coolant from entering the guide rail 11; when debris adheres to the surface of the guide rail 11, the movable part 31 is moved, and the movable part 31 cooperates with the connecting seat 32 to drive the knife seat 36 and the scraper 37 to move, and the scraper 37 scrapes the surface debris, and the scraped debris is collected by the collecting box 17; when the scraper 37 is worn, the connecting seat 32 is removed, and the knife seat 36 is removed, and the scraper 37 is pulled out from the slot 38, so as to replace the scraper 37.

[0035] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A linear guide mechanism for a CNC machine tool, characterized in that: It comprises a main body mechanism (10) and a protection mechanism (20); The main body mechanism (10) comprises a guide rail (11) and a base (12); the guide rail (11) is mounted on one side of the base (12); a movable part (31) is mounted on one side of the guide rail (11); knife seats (36) are symmetrically arranged on both sides of the movable part (31); a scraper (37) is arranged on one side of the knife seat (36); and an electromagnet (25) is mounted on one side of the movable part (31); The protective mechanism (20) comprises an accordion-type protective cover (21) and a connecting frame (23); the accordion-type protective cover (21) is arranged on one side of the guide rail (11); the connecting frame (23) is fixedly connected to one side of the accordion-type protective cover (21); one side of the connecting frame (23) is symmetrically threadedly connected to a first bolt (24); one end of the first bolt (24) is threadedly connected to the base (12); and one side of the accordion-type protective cover (21) is fixedly connected to a metal block (22).

2. A linear guide mechanism for a CNC machine tool according to claim 1, characterized in that: Two connecting plates (13) are symmetrically fixedly connected to one side of the base (12), and screw holes (14) are symmetrically provided inside the connecting plates (13).

3. The linear guide mechanism for a CNC machine tool according to claim 1, characterized in that: A guide groove (19) is symmetrically integrally formed on one side of the base (12), and a limiting strip (18) is symmetrically fixedly connected to one side of the base (12).

4. A linear guide mechanism for a CNC machine tool according to claim 1, characterized in that: Collection boxes (17) are provided on both sides of the base (12), and insertion holes (15) are symmetrically opened on both sides of the base (12). Insertion rods (16) are inserted into the insertion holes (15), and one end of the insertion rod (16) is fixedly connected to the collection box (17).

5. The linear guide mechanism for a CNC machine tool according to claim 1, characterized in that: A clamping groove (38) is provided on one side of the knife seat (36), a second elastic member (39) is fixedly connected inside the clamping groove (38), and the scraper (37) is clamped with the knife seat (36) through the clamping groove (38).

6. A linear guide mechanism for a CNC machine tool according to claim 1, characterized in that: Both sides of the movable member (31) are provided with a connecting seat (32), one side of the connecting seat (32) is symmetrically fixedly connected with a first elastic member (35), one side of the knife seat (36) is clamped with the first elastic member (35), one side of the connecting seat (32) is symmetrically threadedly connected with a third bolt (34), and the third bolt (34) is One end passes through the knife seat (36), and one side of the connecting seat (32) is symmetrically threadedly connected with a second bolt (33). One end of the second bolt (33) is threadedly connected to the movable member (31).

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