Numerical control machine tool with automatic tool retracting function

Abstract

The utility model discloses a numerical control machine tool capable of retracting automatically, and belongs to the technical field of numerical control machine tools. The numerical control machine tool with the automatic tool retracting function comprises a machine tool body and further comprises a tool retracting sliding block, a base is arranged on one side of the machine tool body, a bottom plate and a fixing base are arranged between the base and the machine tool body, the fixing base is located above the bottom plate, the tool retracting sliding block is located above the fixing base, and a workbench is arranged on the tool retracting sliding block. A tool base is arranged above the workbench. In order to solve the problem that a tool is prone to colliding with a workpiece due to the fact that a tool retracting line is single and the safe distance is not enough, a first sliding way and a second sliding way are installed in a machine tool body, after the tool is fixed to a tool base, the tool base can move front and back along the first sliding way, and a tool retracting sliding block drives the tool base to move left and right along the second sliding way; therefore, the cutter can be automatically retracted in multiple directions after the workpiece is machined, and the condition that the cutter collides with the workpiece is avoided.

Description

Technical Field

[0001] This utility model relates to the field of CNC machine tool technology, specifically to an automatic tool retraction CNC machine tool. Background Technology

[0002] A CNC machine tool is an automated machine tool equipped with a program control system. This control system can logically process programs with control codes or other symbolic instructions, decode them, represent them with coded numbers, input them to the CNC device through an information carrier, and after calculation and processing, the CNC device sends out various control signals to control the machine tool's movements. It automatically processes parts according to the shape and size required by the drawings. Tool retraction is an important part of the CNC machining process. It involves how to safely and efficiently remove the tool from the workpiece after completing the cutting task. During the tool retraction process, it is necessary to ensure that there is a sufficient safe distance between the tool and the workpiece to avoid collision and damage. This is usually achieved by reasonably setting the tool retraction path and retraction speed.

[0003] Chinese patent CN221337791U discloses an automatic tool retraction CNC machine tool. By setting up a pressing device, when the clamping plate no longer clamps the workpiece, the pressing rod no longer inserts into the slot of the movable seat. At the same time, the pressing block is driven by the elastic potential energy of the telescopic spring to move automatically upward, thereby achieving the purpose of retracting the cutting tool, reducing the contact between the tool and the material, and protecting it. By setting a clamping rod in the clamping plate, the stability of the material during processing is improved.

[0004] In the aforementioned patent, after the cutting tool processes the workpiece, the clamping plate retracts, and the cutting tool moves upward to achieve tool retraction. However, this method suffers from a single retraction path and insufficient safety distance, which can lead to the cutting tool easily colliding with the workpiece. Therefore, it does not meet the existing requirements, and an automatic tool retraction CNC machine tool is proposed to address this issue. Utility Model Content

[0005] The purpose of this utility model is to provide a CNC machine tool with automatic tool retraction. By installing a first slide and a second slide inside the machine tool body, the tool is fixed in the tool holder, and the tool holder can move back and forth along the first slide. The tool retraction slider drives the tool holder to move left and right along the second slide, so that the tool can automatically retract in multiple directions after machining the workpiece, avoiding the situation of the tool colliding with the workpiece, and solving the problems in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic tool retraction CNC machine tool, comprising a machine tool body and a tool retraction slider. A base is provided on one side of the machine tool body, and a base plate and a fixed seat are provided between the base and the machine tool body. The fixed seat is located above the base plate, and the tool retraction slider is located above the fixed seat. A worktable is provided above the tool retraction slider, and a tool holder is provided above the worktable. A motor is provided below the fixed seat. The two ends of the fixed seat are respectively fixed to the sides of the machine tool body and the base. The fixed seat has a U-shaped structure with an open upper end, and a lead screw is provided inside the fixed seat.

[0007] Preferably, the machine tool body is provided with a movable track door on the outside. The track door has an L-shaped structure, and an observation window is provided on the side of the track door. A three-jaw chuck is provided on the side of the machine tool body.

[0008] Preferably, a control panel is provided on the side of the base, and a baffle and a protective plate are respectively provided on both sides of the base, with the retracting slider and the fixing seat located between the baffle and the protective plate.

[0009] Preferably, a first slide is provided on the top of the workbench, and the tool holder is installed on the first slide, with the two ends of the first slide facing the baffle and the protective plate, respectively.

[0010] Preferably, the upper end of the fixed base is provided with a second slide rail, the side of the fixed base is provided with a guide groove, the tool retraction slider is installed on the second slide rail, and both ends of the tool retraction slider are provided with stabilizing rods, the two ends of the stabilizing rods being connected to the sides of the machine tool body and the base, respectively.

[0011] Preferably, a positioning block is provided at the lower end of the retracting slider, and a positioning wheel is provided on one side of the positioning block. The positioning wheel is connected to the shaft of the positioning block and is located inside the guide groove.

[0012] Preferably, one end of the lead screw is provided with a driven wheel, and one end of the motor is provided with a driving wheel. The driven wheel and the driving wheel are connected by a belt, and the driven wheel, the driving wheel, and the belt are all located inside the base.

[0013] Preferably, the workbench is provided with movable plates at both ends, and storage plates are provided on both sides of the two movable plates. Both the movable plates and the storage plates are hollow cuboid plate structures.

[0014] Preferably, the two ends of the worktable extend outward into the interior of two movable plates, which are located inside two storage plates. One storage plate is installed inside the machine tool body, and the other storage plate is installed inside the base.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model involves installing a first slide rail and a second slide rail inside the machine tool body. After the cutting tool is fixed in the tool holder, the tool holder can move back and forth along the first slide rail. The tool retraction slider drives the tool holder to move left and right along the second slide rail. The workpiece is fixed to the side of the tool holder by a three-jaw chuck. After the cutting tool finishes machining the workpiece, the cutting tool and the workpiece are in a close position. At this time, the motor drives the lead screw to rotate, which in turn drives the tool retraction slider to move away from the workpiece, realizing linear automatic tool retraction. At the same time, the operator can control the tool holder to move back and forth along the first slide rail to realize multi-angle oblique automatic tool retraction, avoiding collision between the cutting tool and the workpiece and improving the flexibility of tool retraction.

[0017] 2. This utility model features a worktable below the tool holder, with movable plates and storage plates at both ends. When the worktable moves with the tool retraction slider, the left end of the worktable moves into the interior of the left movable plate, and the left movable plate moves into the interior of the left storage plate. The right end of the worktable extends out from the interior of the right movable plate, and the right movable plate also extends out from the right storage plate. This ensures that the waste material from the cutting of the workpiece by the tool is always located above the worktable, facilitating subsequent cleaning of the machine tool body and reducing the labor intensity of personnel. Attached Figure Description

[0018] Figure 1 This is the overall front view of the present invention;

[0019] Figure 2 This is a partial structural diagram of the retraction slider of this utility model;

[0020] Figure 3 This is a partial structural diagram of the fixing base of this utility model;

[0021] Figure 4 This is a partial structural diagram of the positioning wheel of this utility model.

[0022] In the diagram: 1. Machine tool body; 101. Track door; 102. Observation window; 103. Base; 104. Control panel; 105. Baffle; 106. Three-jaw chuck; 107. Base plate; 108. Protective plate; 2. Tool holder; 201. First slide rail; 3. Tool retraction slider; 301. Worktable; 302. Movable plate; 303. Storage plate; 304. Stabilizer bar; 4. Fixed seat; 401. Second slide rail; 402. Guide groove; 403. Lead screw; 404. Driven wheel; 405. Belt; 406. Driving wheel; 407. Motor; 408. Positioning block; 409. Positioning wheel. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] To address the issue of a single tool retraction path and insufficient safety distance, which leads to easy tool collisions with the workpiece, please refer to [link to relevant documentation]. Figure 1-4 The present invention provides an embodiment of an automatic tool retraction CNC machine tool, comprising a machine tool body 1 and a tool retraction slider 3. A base 103 is provided on one side of the machine tool body 1. A base plate 107 and a fixed seat 4 are provided between the base 103 and the machine tool body 1. The fixed seat 4 is located above the base plate 107, and the tool retraction slider 3 is located above the fixed seat 4. A worktable 301 is provided above the tool retraction slider 3. A tool holder 2 is provided above the worktable 301. A motor 407 is provided below the fixed seat 4. The two ends of the fixed seat 4 are respectively fixed to the sides of the machine tool body 1 and the base 103. The fixed seat 4 has a U-shaped structure with an open upper end, and a lead screw 403 is provided inside the fixed seat 4.

[0025] The machine tool body 1 is externally equipped with a movable track door 101, which is L-shaped. An observation window 102 is located on the side of the track door 101. A three-jaw chuck 106 is located on the side of the machine tool body 1. A control panel 104 is located on the side of the base 103. A baffle 105 and a protective plate 108 are respectively located on both sides of the base 103. The tool retraction slide 3 and the fixed seat 4 are located between the baffle 105 and the protective plate 108. A first slide rail 201 is located on the top of the worktable 301. The tool holder 2 is mounted on the first slide rail 201. The two ends of the first slide rail 201 face the baffle 105 and the protective plate 108 respectively. A second slide rail 401 is located on the upper end of the fixed seat 4. The fixed seat 4 is equipped with... A guide groove 402 is provided, and the tool retraction slider 3 is installed on the second slide rail 401. Both ends of the tool retraction slider 3 are provided with stabilizing rods 304. The two ends of the stabilizing rods 304 are respectively connected to the side of the machine tool body 1 and the base 103. A positioning block 408 is provided at the lower end of the tool retraction slider 3. A positioning wheel 409 is provided on one side of the positioning block 408. The positioning wheel 409 is connected to the shaft of the positioning block 408. The positioning wheel 409 is located inside the guide groove 402. One end of the lead screw 403 is provided with a driven wheel 404. One end of the motor 407 is provided with a driving wheel 406. The driven wheel 404 and the driving wheel 406 are connected by a belt 405. The driven wheel 404, the driving wheel 406 and the belt 405 are all located inside the base 103.

[0026] After the cutting tool is fixed on the tool holder 2, the tool holder 2 can move back and forth along the first slide 201. The retraction slider 3 drives the tool holder 2 to move left and right along the second slide 401. The workpiece is fixed to the side of the tool holder 2 by the three-jaw chuck 106. After the cutting tool finishes machining the workpiece, the cutting tool and the workpiece are in a close state. At this time, the motor 407 drives the lead screw 403 to rotate, which in turn drives the retraction slider 3 to move away from the workpiece, realizing linear automatic retraction. At the same time, the operator can control the tool holder 2 to move back and forth along the first slide 201 to realize multi-angle oblique automatic retraction, avoiding collision between the cutting tool and the workpiece, and further improving the flexibility during retraction.

[0027] The worktable 301 has movable plates 302 at both ends, and storage plates 303 on both sides of each movable plate 302. Both movable plates 302 and storage plates 303 are hollow cuboid plate structures. The two ends of the worktable 301 extend outwards into the interior of the two movable plates 302, which are located inside the two storage plates 303. One storage plate 303 is installed inside the machine tool body 1, and the other storage plate 303 is installed inside the base 103. When the worktable 301... When the retracting slider 3 moves, the left end of the worktable 301 moves into the interior of the left movable plate 302, and the left movable plate 302 moves into the interior of the left storage plate 303. The right end of the worktable 301 extends out from the interior of the right movable plate 302, and the right movable plate 302 also extends out from the right storage plate 303. This ensures that the waste material from the cutting of the workpiece by the tool is always above the worktable 301, which facilitates subsequent cleaning of the interior of the machine tool body 1 and reduces the labor intensity of personnel.

[0028] Working principle: When the workpiece is fixed to the side of the tool holder 2 by the three-jaw chuck 106, after the tool has finished machining the workpiece, the tool and the workpiece are in a close state. At this time, the motor 407 drives the lead screw 403 to rotate, which in turn drives the retraction slider 3 to move away from the workpiece, realizing linear automatic retraction. At the same time, the operator can control the tool holder 2 to move back and forth along the first slide 201 to realize multi-angle oblique automatic retraction, avoiding the collision between the tool and the workpiece and improving the flexibility of retraction.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. An automatic tool retracting numerical control machine tool comprising a machine tool body (1), characterized by; Also include the tool withdrawal slider (3), the machine tool body (1) side is provided with a base (103), the base (103) and the machine tool body (1) between the bottom plate (107) and the fixed seat (4) are provided, the fixed seat (4) is located above the bottom plate (107), the tool withdrawal slider (3) is located above the fixed seat (4), the upper surface of the tool withdrawal slider (3) is provided with a workbench (301), the upper surface of the workbench (301) is provided with a tool holder (2), the lower surface of the fixed seat (4) is provided with a motor (407), the two ends of the fixed seat (4) are fixed on the side surface of the machine tool body (1) and the base (103), the fixed seat (4) is a U-shaped structure with an open upper end, and a screw rod (403) is arranged in the fixed seat (4).

2. The automatic tool retracting NC machine according to claim 1, characterized in that: The outer surface of the machine tool body (1) is provided with a movable track door (101), the track door (101) is an L-shaped structure, the side surface of the track door (101) is provided with an observation window (102), and the side surface of the machine tool body (1) is provided with a three-jaw chuck (106).

3. The automatic tool retracting NC machine according to claim 1, characterized in that: The side surface of the base (103) is provided with a control panel (104), and the two sides of the base (103) are respectively provided with a baffle (105) and a protective plate (108), and the tool withdrawal slider (3) and the fixed seat (4) are located between the baffle (105) and the protective plate (108).

4. The automatic tool retracting NC machine according to claim 1, characterized in that: The upper surface of the workbench (301) is provided with a first sliding groove (201), and the tool holder (2) is installed on the first sliding groove (201), and the two ends of the first sliding groove (201) are respectively directed to the baffle (105) and the protective plate (108).

5. The automatic tool retracting NC machine according to claim 1, characterized in that: The upper end of the fixed seat (4) is provided with a second sliding groove (401), the side surface of the fixed seat (4) is provided with a guide groove (402), the tool withdrawal slider (3) is installed on the second sliding groove (401), and the two ends of the tool withdrawal slider (3) are provided with a stabilizing rod (304), and the two ends of the stabilizing rod (304) are connected with the side surfaces of the machine tool body (1) and the base (103).

6. The automatic tool retracting NC machine according to claim 1, characterized in that: The lower end of the tool withdrawal slider (3) is provided with a positioning block (408), one side of the positioning block (408) is provided with a positioning wheel (409), the positioning wheel (409) is connected with the positioning block (408) in a shaft manner, and the positioning wheel (409) is located in the guide groove (402).

7. The automatic tool retracting NC machine according to claim 1, characterized in that: One end of the screw rod (403) is provided with a driven wheel (404), one end of the motor (407) is provided with a driving wheel (406), the driven wheel (404) and the driving wheel (406) are connected through a belt (405), and the driven wheel (404), the driving wheel (406) and the belt (405) are located in the interior of the base (103).

8. The automatic tool retracting NC machine according to claim 1, characterized in that: The two ends of the workbench (301) are provided with movable plates (302), and the two sides of the two movable plates (302) are provided with storage plates (303), and the movable plates (302) and the storage plates (303) are hollow cuboid plate structures.

9. The automatic tool retracting NC machine according to claim 8, characterized in that: Two ends of the workbench (301) respectively extend outward to the inside of two movable plates (302), and the two movable plates (302) are located in the inside of two storage plates (303), one of which is installed in the inside of the machine tool body (1), and the other is installed in the inside of the base (103).

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