CN219853246U

CN219853246U - Numerical control machine tool with cutter contraction structure

Info

Publication number: CN219853246U
Application number: CN202321154785.9U
Authority: CN
Inventors: 张守力; 刘福江; 张振
Original assignee: Jiangsu Gubang Intelligent Equipment Co ltd
Current assignee: Jiangsu Gubang Intelligent Equipment Co ltd
Priority date: 2023-05-15
Filing date: 2023-05-15
Publication date: 2023-10-20
Anticipated expiration: 2033-05-15

Abstract

The utility model discloses a numerical control machine tool with a cutter contraction structure, which comprises a machine tool main body, wherein an installation frame is movably arranged on the upper end surface of a workbench of the machine tool main body, a telescopic mechanism is arranged at the upper end of the installation frame, a cutter head installation seat is movably arranged at one end of the telescopic mechanism, and an electromagnetic limiting assembly for positioning the cutter head installation seat is arranged at the upper end of the telescopic mechanism; the utility model has simple structure and reasonable design, realizes the rapid separation of the cutter and the workpiece at the first time when the numerical control lathe is overloaded or collides with the cutter, effectively avoids the further damage of the workpiece and the cutter, improves the processing yield and the self-protection capability of the numerical control lathe, simultaneously meets the positioning requirement of the telescopic column and the cutter group in normal work and the rapid release requirement when the large load or the cutter collides with the cutter, further shortens the contraction time of the telescopic column and the cutter group, and improves the working efficiency of the telescopic mechanism.

Description

Numerical control machine tool with cutter contraction structure

Technical Field

The utility model relates to the technical field of numerical control machine tool equipment, in particular to a numerical control machine tool with a cutter shrinkage structure.

Background

The numerical control machine tool automatically processes the processed parts according to a processing program which is programmed in advance. The processing process route, the process parameters, the movement track, the displacement, the cutting parameters and the auxiliary functions of the part are written into a processing program list according to the instruction codes and the program formats specified by the numerical control machine tool, the content in the program list is recorded on a control medium, and then the control medium is input into the numerical control device of the numerical control machine tool, so that the numerical control machine tool is instructed to process the part. A numerical control lathe is one of the numerical control lathes that are widely used. The cutting tool is mainly used for cutting machining of inner and outer cylindrical surfaces of shaft parts or disc parts, inner and outer conical surfaces of any cone angle, complex rotation inner and outer curved surfaces, cylindrical threads, conical threads and the like, and can be used for grooving, drilling, reaming, boring and the like.

The prior art has the following defects:

at present, when the load is overlarge or a cutter is collided, a PLC central processing unit generally controls a workpiece to move away from the cutter through a preset program, so that more serious accidents are avoided, but the workpiece on the numerical control lathe is relatively slow in moving speed, particularly a workpiece with relatively large mass, is difficult to withdraw quickly in the first time, and therefore irreversible damage is easily caused to the workpiece or the cutter.

Disclosure of Invention

The utility model aims to provide a numerical control machine tool with a cutter contraction structure so as to solve the problems in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the numerical control machine tool with the cutter contraction structure comprises a machine tool main body, wherein an installation frame is movably arranged on the upper end face of a workbench of the machine tool main body, a telescopic mechanism is arranged at the upper end of the installation frame, a cutter head installation seat is movably arranged at one end of the telescopic mechanism, and an electromagnetic limiting assembly for positioning the cutter head installation seat is arranged at the upper end of the telescopic mechanism;

the telescopic mechanism comprises:

the mounting sleeve is arranged on the mounting frame, one end of the mounting sleeve is movably provided with a screw rod, the screw rod is movably provided with a nut matched with the screw rod, and one end of the screw rod, which is positioned outside the mounting sleeve, is provided with a crank;

the telescopic column is movably arranged in a hole at one end of the mounting sleeve, the inside of the telescopic column is connected with the screw rod in a sliding manner through a cavity, and the tool bit mounting seat is arranged at one end of the telescopic column far away from the mounting sleeve;

the spring is arranged in the cavity of the telescopic column and is movably connected with one end of the screw rod. Preferably, the electromagnetic limiting assembly comprises:

the tooth grooves are arranged on the outer wall of the telescopic column;

the upper end of the magnet is in sliding connection with a chute in a through hole on the outer wall of the mounting sleeve through a sliding block, and the lower end of the magnet is provided with teeth matched with the tooth grooves;

the electromagnet is arranged at the upper end of the hole on the outer wall of the mounting sleeve and is matched with the magnet.

Preferably, an auxiliary seat is arranged at one end of the inner wall of the mounting sleeve for maintaining the stability of the screw rod.

Preferably, the auxiliary seat is provided with a plurality of limit rods, and the limit rods penetrate through holes in the nuts to be matched with holes in the telescopic columns.

Preferably, one end of the screw rod positioned in the mounting sleeve is rotationally connected with a rotating seat, and one end of the rotating seat is connected with a spring.

Preferably, a buffer pad is arranged outside the hole at one end of the mounting sleeve.

Preferably, a cutter group is arranged in the cutter head mounting seat.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the numerical control machine tool with the cutter contraction structure, the telescopic mechanism is arranged and comprises the mounting sleeve, the screw rod, the crank, the nut, the telescopic column and the spring, so that the cutter and the workpiece are rapidly separated at the first time when the numerical control machine tool is overloaded or the cutter is collided, further damage to the workpiece and the cutter is effectively avoided, and the machining yield and the self-protection capacity of the numerical control machine tool are improved;

2. this digit control machine tool with cutter shrink structure through being provided with the spacing subassembly of electromagnetism, and the spacing subassembly of electromagnetism is including tooth's socket, magnet, tooth and electro-magnet, has satisfied the location demand of telescopic column and cutter group in normal work and has appeared great load or the quick release demand when bumping the sword, has further shortened the shrink time of telescopic column and cutter group, has improved telescopic machanism's work efficiency.

Drawings

FIG. 1 is an overall front view of the present utility model;

FIG. 2 is a schematic view of the internal structure of the telescopic mechanism of the present utility model;

FIG. 3 is a schematic drawing showing the telescoping mechanism of the present utility model;

fig. 4 is an enlarged schematic view of fig. 2 at a in accordance with the present utility model.

In the figure: 1. a machine tool main body; 2. a mounting frame; 3. a telescoping mechanism; 301. a mounting sleeve; 302. a screw rod; 3021. a crank; 303. a nut; 304. a telescopic column; 305. a spring; 306. an auxiliary seat; 307. a limit rod; 4. a tool bit mounting seat; 5. an electromagnetic limit assembly; 501. tooth slots; 502. a magnet; 503. teeth; 504. an electromagnet; 6. a rotating seat; 7. a cushion pad; 8. a cutter set.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of this patent, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "disposed" are to be construed broadly, and may be fixedly connected, disposed, or detachably connected, disposed, or integrally connected, disposed, for example. The specific meaning of the terms in this patent will be understood by those of ordinary skill in the art as the case may be.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a number" is two or more, unless explicitly defined otherwise.

Examples

Referring to fig. 1-4, the present utility model provides a technical solution for a numerically-controlled machine tool with a tool shrinkage structure: the numerical control machine tool with the cutter contraction structure comprises a machine tool main body 1, wherein a mounting frame 2 is movably mounted on the upper end surface of a workbench of the machine tool main body 1, a telescopic mechanism 3 is mounted at the upper end of the mounting frame 2, a cutter head mounting seat 4 is movably mounted at one end of the telescopic mechanism 3, and an electromagnetic limiting assembly 5 for positioning the cutter head mounting seat 4 is mounted at the upper end of the telescopic mechanism 3; the telescopic mechanism 3 comprises a mounting sleeve 301, a telescopic column 304 and a spring 305, wherein the mounting sleeve 301 is fixedly arranged on a mounting frame 2 through bolts, one end of the mounting sleeve 301 is rotatably connected with a screw rod 302 through a mounting hole, a nut 303 matched with the screw rod 302 is movably arranged on the screw rod 302, a crank 3021 used for rotating the screw rod 302 is arranged at one end of the screw rod 302, the telescopic column 304 is movably arranged in a hole at one end of the mounting sleeve 301, the inside of the telescopic column 304 is slidably connected with the screw rod 302 through a cavity, a tool bit mounting seat 4 is welded at one end of the telescopic column 304 far away from the mounting sleeve 301, the spring 305 is welded in the cavity of the telescopic column 304 and is movably connected with one end of the screw rod 302, when the tool bit mounting seat 4 needs to be controlled to extend, the crank 3021 is rotated to drive the screw rod 302 to rotate, during the rotation of the screw rod 302, the nut 303 moves horizontally so as to push the telescopic column 304 to overcome the tension of the spring 305 to drive the tool bit mounting seat 4 to move away from the screw rod 302, after the tool bit mounting seat 4 reaches a specified position, the electromagnetic limiting assembly 5 fixes the position of the telescopic column 304 to prevent rebound, then the crank 3021 rotates reversely to drive the nut 303 on the screw rod 302 to move so that the nut 303 is far away from the telescopic column 304, when the nut 303 reaches the specified position, the numerical control machine tool can start up to perform cutting operation, during the operation of the numerical control machine tool, if the PLC central processing unit receives an excessive load or a tool collision signal, the electromagnetic limiting assembly 5 is immediately controlled to cancel limiting the telescopic column 304, the telescopic column 304 is immediately rebounded under the action of the spring 305 to complete shrinkage, thereby realizing protection of tools and workpieces, the quick separation of the cutter and the workpiece at the first time when the numerical control lathe is overloaded or the cutter is bumped is realized, the further damage of the workpiece and the cutter is effectively avoided, and the processing yield and the self-protection capability of the numerical control lathe are improved.

The electromagnetic limiting assembly 5 comprises tooth grooves 501, magnets 502 and electromagnets 504, wherein the tooth grooves 501 are formed in the outer wall of a telescopic column 304, the upper ends of the magnets 502 are connected with sliding grooves in through holes in the outer wall of an installation sleeve 301 in a sliding mode through sliding mode, teeth 503 matched with the tooth grooves 501 are arranged at the lower ends of the magnets 502, the tooth grooves 501 and the teeth 503 are fixed in a unidirectional mode, the electromagnets 504 are welded at the upper ends of holes in the outer wall of the installation sleeve 301 and matched with the magnets 502, when the telescopic column 304 is required to be positioned, the electromagnets 504 are controlled to be electrified with current in a specified direction through a PLC central processing unit, so that the electromagnets 504 can generate repulsive force to the magnets 502, the teeth 503 below the magnets 502 are tightly meshed with the tooth grooves 501, when limiting of the telescopic column 304 is required to be canceled, the current direction on the electromagnets 504 is changed, attractive force is generated to the magnets 502, the magnets 502 drive the teeth 503 to move away from the direction of the tooth grooves 501, after the teeth 503 are separated from the teeth 501, the telescopic column 304 can move horizontally, the electromagnetic limiting assembly 304 is enabled to generate current in the direction, when the telescopic column 304 is required to be positioned, the telescopic column 304 is satisfied, the normal work efficiency is shortened, the work load of a telescopic column is further is shortened, and the work load is required to be more is shortened, and the work is required to be met, and the work is in a normal condition, and a work is and has is 3.

An auxiliary seat 306 is arranged at one end of the inner wall of the mounting sleeve 301 and used for keeping the stability of the screw rod 302, the inside of the auxiliary seat 306 is rotationally connected with the screw rod 302 through a bearing, and the stability of the screw rod 302 is ensured and the rotation of the screw rod 302 is not influenced.

A plurality of limiting rods 307 are welded on the auxiliary seat 306, the limiting rods 307 penetrate through holes in the nuts 303 to be matched with holes in the telescopic columns 304, the limiting rods 307 can ensure that the nuts 303 cannot synchronously rotate with the screw rods 302, and stability of the telescopic columns 304 in the moving process is also ensured.

One end of the screw rod 302 located in the mounting sleeve 301 is rotatably connected with a rotating seat 6, one end of the rotating seat 6 is connected with a spring 305, and the rotating seat 6 can prevent the screw rod 302 from transmitting rotating force to the telescopic column 304 through the spring 305 during rotation.

The cushion pad 7 is installed outside the hole of one end of the installation sleeve 301, and the cushion pad 7 can avoid damage caused by collision with the installation sleeve 301 when the telescopic column 304 drives the tool bit installation seat 4 to shrink.

The tool bit mounting seat 4 is internally provided with a tool set 8, and the tool set 8 can be used for machining a workpiece such as cutting, drilling, boring and the like.

The working principle of the utility model is as follows:

when the numerical control machine tool with the cutter contraction structure is used, a workpiece is firstly installed on the numerical control lathe, then the crank 3021 is rotated, the crank 3021 drives the screw rod 302 to rotate, the nut 303 moves horizontally in the rotating process of the screw rod 302, the telescopic column 304 is pushed to overcome the tensile force of the spring 305, the cutter head mounting seat 4 is driven to move away from the screw rod 302, after the cutter head mounting seat 4 reaches a specified position, the electromagnet 504 is controlled to be electrified with current in the specified direction through the PLC CPU, so that the electromagnet 504 generates repulsive force to the magnet 502, teeth 503 below the magnet 502 are tightly meshed with tooth grooves 501, movement cannot occur, the position of the telescopic column 304 is fixed, rebound is prevented from occurring when the cutter is operated, then the crank 3021 drives the nut 303 on the screw rod 302 to move, the nut 303 is far away from the telescopic column 304, when the nut 303 reaches the specified position, the machine tool can cut work, if the PLC CPU receives an excessive load or a cutter signal, an instruction is immediately sent, the current in the specified direction is changed for the electromagnet 504, the tooth grooves 503 are enabled to be tightly meshed with the tooth grooves 501, the tooth grooves 501 are enabled to be driven to move away from the cutter head seat 502, and the cutter head 502 is driven to be separated from the tooth grooves 501, and the cutter head is enabled to move away from the tooth grooves 501, and the cutter head 502 is protected, and the cutter is enabled to be moved away from the tooth grooves and the cutter seat 4 is immediately, and the cutter is protected, and the cutter is moved away from the tooth grooves and the tooth grooves are moved, and the cutter is 8 is moved by the cutter, and the cutter is moved; the utility model has simple structure and reasonable design, realizes the rapid separation of the cutter and the workpiece at the first time when the numerical control lathe is overloaded or collides with the cutter through the telescopic mechanism 3, effectively avoids the further damage of the workpiece and the cutter, improves the processing yield and the self-protection capability of the numerical control lathe, simultaneously meets the positioning requirement of the telescopic column 304 and the cutter group 8 in normal work and the rapid release requirement when the large load or the cutter collision occurs through the electromagnetic limiting component 5, further shortens the contraction time of the telescopic column 304 and the cutter group 8, and improves the working efficiency of the telescopic mechanism 3.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a digit control machine tool with cutter shrink structure, includes lathe main part (1), its characterized in that: the machine tool comprises a machine tool body (1), and is characterized in that a mounting frame (2) is movably arranged on the upper end face of a workbench of the machine tool body (1), a telescopic mechanism (3) is arranged at the upper end of the mounting frame (2), a tool bit mounting seat (4) is movably arranged at one end of the telescopic mechanism (3), and an electromagnetic limiting assembly (5) for positioning the tool bit mounting seat (4) is arranged at the upper end of the telescopic mechanism (3);

the telescopic mechanism (3) comprises:

the mounting sleeve (301), the mounting sleeve (301) is arranged on the mounting frame (2), a screw rod (302) is movably arranged at one end of the mounting sleeve (301), a nut (303) matched with the screw rod (302) is movably arranged on the screw rod (302), and a crank (3021) is arranged at one end of the screw rod (302) located outside the mounting sleeve (301);

the telescopic column (304) is movably arranged in a hole at one end of the mounting sleeve (301), the inside of the telescopic column (304) is in sliding connection with the screw rod (302) through a cavity, and the tool bit mounting seat (4) is arranged at one end, far away from the mounting sleeve (301), of the telescopic column (304);

the spring (305) is arranged in the cavity of the telescopic column (304) and is movably connected with one end of the screw rod (302).

2. The numerical control machine with tool retracting structure according to claim 1, wherein: the electromagnetic limiting assembly (5) comprises:

the tooth grooves (501) are formed in the outer wall of the telescopic column (304);

the upper end of the magnet (502) is slidably connected with a chute in a through hole on the outer wall of the mounting sleeve (301) through a sliding block, and the lower end of the magnet (502) is provided with teeth (503) matched with the tooth grooves (501);

and the electromagnet (504) is arranged at the upper end of the hole on the outer wall of the mounting sleeve (301) and is matched with the magnet (502).

3. The numerical control machine with tool retracting structure according to claim 1, wherein: an auxiliary seat (306) is arranged at one end of the inner wall of the mounting sleeve (301) and used for keeping stability of the screw rod (302).

4. A numerical control machine tool with a tool shrink structure according to claim 3, characterized in that: a plurality of limiting rods (307) are arranged on the auxiliary seat (306), and the limiting rods (307) penetrate through holes in the nuts (303) to be matched with holes in the telescopic columns (304).

5. The numerical control machine with tool retracting structure according to claim 1, wherein: one end of the screw rod (302) positioned in the mounting sleeve (301) is rotationally connected with a rotating seat (6), and one end of the rotating seat (6) is connected with a spring (305).

6. The numerical control machine with tool retracting structure according to claim 1, wherein: the outer side of a hole at one end of the mounting sleeve (301) is provided with a buffer pad (7).

7. The numerical control machine with tool retracting structure according to claim 1, wherein: a cutter group (8) is arranged in the cutter head mounting seat (4).