Numerical control machine tool with protective device

Abstract

The utility model relates to the technical field of numerical control machine tools, in particular to a numerical control machine tool with a protection device. According to the technical scheme, a support is installed on a bottom plate, a lifting frame is installed on the support, a machine head is installed on the lifting frame, a first sliding plate is installed on the support through a first motor and a lead screw, the lifting frame is located on the first sliding plate, and a protection module is installed at the position, located at the output end of the machine head, of the lifting frame; the protection module is provided with a sleeve and a lining pipe, bosses are arranged on the sleeve and the lining pipe, and a spring is installed between the boss of the sleeve and the boss of the lining pipe. According to the protection module, part of splashing chippings can be effectively blocked, the influence of vibration of a machine tool on the protection module can be reduced through the buffering effect of the spring, meanwhile, an efficient dust collection system is formed through the negative pressure pipe and the negative pressure dust collection device on the protection module, and therefore dust is prevented from being accumulated in a working area.

Description

Technical Field

[0001] This utility model relates to the field of CNC machine tool technology, and specifically to a CNC machine tool with a protective device. Background Art

[0002] CNC machine tools, short for numerical control machine tools, are automated machine tools equipped with a program control system. This control system logically processes programs with control codes or other symbolic instructions, decodes them, represents them with coded numbers, and inputs them into the CNC device via an information carrier. After processing, the CNC device sends various control signals to control the machine tool's movements, automatically machining parts according to the shape and dimensions required by the drawings. CNC machine tools effectively solve the problem of machining complex, precise, small-batch, and multi-variety parts.

[0003] A search revealed that patent CN202310116153.1 discloses a CNC machine tool with an air curtain protection device. While this device injects high-pressure gas into the air chamber through an air inlet, causing the gas to accumulate and then expel downwards through an annular gap, forming an air curtain barrier around the cutting tool, it prevents dust and debris from flying out during machining, thus avoiding contamination of the working ring. Although the air curtain device attempts to form a barrier using high-pressure gas, the stability of the high-pressure gas is crucial for maintaining an effective barrier. Unstable gas supply or pressure fluctuations due to machine tool vibration can affect the barrier's effectiveness. Furthermore, the size, shape, density, and hardness of the dust and debris also influence the effectiveness of the air curtain. Some small or light debris may penetrate the air curtain more easily, while some larger or heavier debris may be more difficult to block due to inertia and other reasons. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a CNC machine tool with a protective device, thus solving the problems mentioned in the background art.

[0005] The solution to the above-mentioned technical problems provided by this utility model is as follows:

[0006] A CNC machine tool with a protective device includes a base plate, a bracket mounted on the base plate, a lifting frame mounted on the bracket, and a machine head mounted on the lifting frame;

[0007] A first motor is mounted on the bracket, and a lead screw is mounted on the output end of the first motor. A first sliding plate is mounted on the bracket via the first motor and the lead screw. The lifting frame is located on the first sliding plate. A protective module is mounted on the output end of the lifting frame at the machine head. A third motor is mounted on the base plate, and a lead screw is also mounted on the output end of the third motor. A second sliding plate is slidably mounted on the base plate via the third motor and the lead screw. A support plate is provided on the second sliding plate.

[0008] The protective module is provided with a sleeve and an inner liner. Both the sleeve and the inner liner are provided with bosses, and a spring is installed between the bosses of the sleeve and the inner liner. The sleeve and the bosses are elastically supported by the springs, and a ball bearing seat is installed at the bottom end of the sleeve.

[0009] Based on the above technical solution, the present invention can be further improved as follows.

[0010] Furthermore, a second motor is installed on the lifting frame, and the first slide plate is slidably mounted on the second motor.

[0011] The beneficial effects of adopting the above-mentioned further solutions are:

[0012] Mounting the second motor on the lifting frame makes the entire machine tool structure more compact. This design not only reduces the machine tool's footprint but also improves its overall stability. The first slide plate is slidably mounted on the second motor, enabling precise vertical control of the lifting frame. This design allows the machine tool to flexibly adjust the height of the machine head to accommodate the machining needs of workpieces of different sizes and shapes. The second motor drives the vertical movement of the lifting frame, precisely controlling the height of the machine head. This precise control helps improve machining accuracy and consistency, ensuring that each workpiece achieves the expected machining quality.

[0013] Furthermore, the first slide, the lifting frame, and the second slide are all equipped with sliders, and the bracket, the first slide, and the base plate are all equipped with corresponding slide rails. The first slide, the lifting frame, and the second slide are installed on the first slide, the lifting frame, and the second slide by mutual cooperation of the sliders and slide rails.

[0014] The beneficial effects of adopting the above-mentioned further solutions are:

[0015] The cooperation between the slider and the guide rail ensures the smooth movement of the first slide, the lifting frame, and the second slide during operation. This design reduces friction and vibration between moving parts, enabling the machine tool to maintain higher precision and stability during machining. The installation of the slider and guide rail is relatively simple, requiring no complex adjustments or calibrations. This design not only shortens the machine tool's installation time but also reduces maintenance costs. Furthermore, the standardized design of the slider and guide rail facilitates easy replacement and maintenance.

[0016] Furthermore, a fixing clip is provided on the protrusion of the inner liner tube, and the protective module is installed on the outside of the output end of the machine head by the fixing clip and fixing bolt.

[0017] The beneficial effects of adopting the above-mentioned further solutions are:

[0018] The protective module is secured and mounted on the outside of the machine head's output end using fixing clips and bolts, ensuring its stability during machining. This installation method effectively prevents the protective module from loosening or falling off during machine operation, thus protecting the machine tool and workpiece from potential damage. The design of the fixing clips and bolts simplifies the disassembly and installation of the protective module. When cleaning, maintenance, or replacement of the protective module is required, operators can easily remove it without the need for complex disassembly of the entire machine tool. This reduces maintenance costs and improves the availability and flexibility of the machine tool.

[0019] Furthermore, the bottom end of the inner liner tube is provided with a baffle, and a through hole is provided through the baffle. The output end of the machine head passes through the through hole to process the workpiece.

[0020] The beneficial effects of adopting the above-mentioned further solutions are:

[0021] The through-holes in the baffle ensure that the output end of the machine head can be accurately positioned on the workpiece, reducing errors caused by inaccurate positioning. This design helps improve machining accuracy and consistency, ensuring that each workpiece achieves the expected machining results. The baffle design also prevents debris generated during machining from accumulating in critical parts of the machine tool. This helps reduce the machine tool's failure rate and improve its stability and reliability.

[0022] Furthermore, a negative pressure pipe is connected to one side of the sleeve, and the negative pressure pipe is connected to a negative pressure dust collection device.

[0023] The beneficial effects of adopting the above-mentioned further solutions are:

[0024] The connection between the negative pressure pipe and the negative pressure dust collection equipment forms an effective dust collection system. During processing, dust and debris generated can be drawn into the negative pressure pipe by negative pressure suction and transported to the negative pressure dust collection equipment for treatment. This significantly reduces dust pollution in the work area and improves the cleanliness of the working environment. The reduction of dust and debris not only improves the working environment but also reduces the risk of occupational diseases caused by long-term dust inhalation for employees.

[0025] This utility model provides a CNC machine tool with a protective device. It has the following beneficial effects:

[0026] This CNC machine tool achieves multi-dimensional flexible movement through a structure consisting of a base plate, support, lifting frame, and sliding plate. A first motor drives a lead screw, causing the first sliding plate to slide on the support, thereby adjusting the horizontal position of the machine head. A second motor may be used to drive the lifting frame or the first sliding plate for vertical movement, achieving height adjustment of the machine head. A third motor drives another lead screw, causing the second sliding plate to slide on the base plate, thereby adjusting the position of the pallet (the platform supporting the workpiece). This design allows the CNC machine tool to precisely position and adjust the relative position between the machine head and the workpiece.

[0027] The sleeve and inner liner are elastically supported by springs. When the machine head presses down, the springs absorb the impact force, acting as a buffer to protect the workpiece and machine tool from damage. Simultaneously, a negative pressure pipe connected to one side of the sleeve is linked to a negative pressure dust collection system, which can collect dust and debris generated during processing, maintaining a clean working environment. Attached Figure Description

[0028] The accompanying drawings, which are provided to further illustrate the present invention and form part of this application, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0029] In the attached diagram:

[0030] Figure 1 This is a schematic diagram of the main appearance of the present utility model;

[0031] Figure 2 This is a rear view schematic diagram of the present utility model;

[0032] Figure 3 This is a schematic diagram of the appearance of the lifting frame of this utility model;

[0033] Figure 4 This is a cross-sectional view of the protective module of this utility model.

[0034] The attached diagram lists the components represented by each number as follows:

[0035] 1. Base plate; 10. Support plate; 11. Second slide plate; 12. Third motor; 2. Bracket; 3. First motor; 4. Lead screw; 5. First slide plate; 6. Second motor; 7. Lifting frame; 8. Machine head; 9. Protective module; 901. Fixing bolt; 902. Negative pressure pipe; 903. Ball bearing seat; 904. Sleeve; 905. Spring; 906. Inner liner tube; 907. Boss; 908. Through hole; 909. Baffle; 910. Fixing clip. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0037] Please see Figures 1 to 4 As shown, the embodiments provided by this utility model are as follows:

[0038] Example 1

[0039] A CNC machine tool with a protective device includes a base plate 1, a bracket 2 mounted on the base plate 1, a lifting frame 7 mounted on the bracket 2, a machine head 8 mounted on the lifting frame 7, a first motor 3 mounted on the bracket 2, a lead screw 4 mounted on the output end of the first motor 3, a first slide plate 5 mounted on the bracket 2 via the first motor 3 and the lead screw 4, the lifting frame 7 located on the first slide plate 5, and a second motor 6 mounted on the lifting frame 7. The first slide plate 5 is slidably mounted on the second motor 6. Mounting the second motor 6 on the lifting frame 7 makes the entire machine tool structure more compact. This design not only reduces the machine tool's footprint but also improves its overall stability. The first slide plate 5 slidably mounted on the second motor 6 enables precise vertical control of the lifting frame 7. This design allows the machine tool to flexibly adjust the height of the machine head 8 to adapt to the processing needs of workpieces of different sizes and shapes. The second motor 6 drives the lifting frame 7 to move vertically, thus precisely controlling the height of the machine head 8. This precise control helps improve machining accuracy and consistency, ensuring that each workpiece achieves the expected machining quality. A protective module 9 is installed at the output end of the lifting frame 7, located at the machine head 8. A third motor 12 is installed on the base plate 1, and a lead screw 4 is also installed at the output end of the third motor 12. A second slide plate 11 is slidably mounted on the base plate 1 via the third motor 12 and the lead screw 4. A support plate 10 is provided on the second slide plate 11. The first slide plate 5, lifting frame 7, and second slide plate 11 are all equipped with sliders, and corresponding slide rails are provided on the bracket 2, first slide plate 5, and base plate 1. The first slide plate 5, lifting frame 7, and second slide plate 11 are limited and mounted on the first slide plate 5, lifting frame 7, and second slide plate 11 through the cooperation of the sliders and slide rails. The cooperation of the sliders and slide rails ensures the stability of the first slide plate 5, lifting frame 7, and second slide plate 11 during movement. This design reduces friction and vibration between moving parts, enabling the machine tool to maintain higher accuracy and stability during machining. The installation of the sliders and slide rails is relatively simple, requiring no complex adjustments or calibrations. This design not only shortens the machine tool's installation time but also reduces maintenance costs. At the same time, the standardized design of the sliders and rails makes them easy to replace and maintain.

[0040] Example 2

[0041] To ensure effective protection, for example, such as Figures 1 to 4As shown, the present invention also includes: a protective module 9 with a sleeve 904 and an inner liner 906. A negative pressure pipe 902 is connected to one side of the sleeve 904, and the negative pressure pipe 902 is connected to a negative pressure dust collection device. This connection forms an effective dust collection system. During processing, the generated dust and debris can be drawn into the negative pressure pipe 902 by negative pressure suction and transported to the negative pressure dust collection device for treatment. This significantly reduces dust pollution in the work area and improves the cleanliness of the working environment. The reduction of dust and debris not only improves the working environment but also reduces the risk of occupational diseases caused by long-term dust inhalation for employees. The bottom end of the inner liner 906 is provided with a baffle 909, and a through hole 908 is provided on the baffle 909. The output end of the machine head 8 passes through the through hole 908 to process the workpiece. The through hole 908 on the baffle 909 ensures that the output end of the machine head 8 can be accurately positioned on the workpiece, reducing errors caused by inaccurate positioning. This design helps improve machining accuracy and consistency, ensuring that each workpiece achieves the expected machining effect. The baffle 909 design also prevents debris generated during machining from splashing and accumulating in critical parts of the machine tool. This helps reduce the machine tool's failure rate and improve its stability and reliability. Both the sleeve 904 and the inner liner tube 906 are provided with bosses 907, and a spring 905 is installed between the bosses 907 of the sleeve 904 and the inner liner tube 906. The sleeve 904 and the inner liner tube 906 are elastically supported by the spring 905. When the machine head 8 is pressed down, the sleeve 904 and the inner liner tube 906 are buffered by the compression spring 905. The boss 907 of the inner liner tube 906 is provided with a fixing clip 910. The protective module 9 is limited and installed on the outside of the output end of the machine head 8 by the fixing clip 910 and the fixing bolt 901, ensuring the stability of the protective module 9 during machining. This installation method effectively prevents the protective module 9 from loosening or falling off during machine tool operation, thus protecting the machine tool and workpiece from potential damage. The design of the fixing clip 910 and fixing bolt 901 makes the disassembly and installation of the protective module 9 relatively simple. When the protective module 9 needs to be cleaned, repaired, or replaced, the operator can easily disassemble the protective module 9 without the need for complex disassembly of the entire machine tool. This reduces maintenance costs and improves the availability and flexibility of the machine tool. The bottom end of the sleeve 904 is equipped with a ball bearing seat 903, which facilitates the movement of the protective module 9 on the workpiece surface via the balls of the ball bearing seat 903.

[0042] Working principle:

[0043] The workpiece is placed on the pallet 10, and the position of the second slide plate 11 is adjusted to align the workpiece with the machine head 8. The base plate 1 serves as the foundation of the entire machine tool, supporting the bracket 2 and other components. The bracket 2 is used to mount key components such as the lifting frame 7 and the first motor 3. The lifting frame 7 is driven by the second motor 6 and moves vertically on the bracket 2 or the first slide plate 5, thereby adjusting the height of the machine head 8. The machine head 8 is responsible for performing specific machining tasks. The first slide plate 5 slides on the bracket 2 via the first motor 3 and the lead screw 4 to adjust the horizontal position of the machine head 8. The second slide plate 11 slides on the base plate 1 via the third motor 12 and the lead screw 4 to adjust the position of the pallet 10 (the platform that carries the workpiece).

[0044] The workpiece is placed on the pallet 10, and the position of the second slide plate 11 is adjusted to align the workpiece with the machine head 8. The sleeve 904 and inner liner 906 are elastically supported by a spring 905, forming a compressible protective structure. When the machine head 8 presses down to process the workpiece, the sleeve 904 and inner liner 906 compress the spring 905, providing a buffer and protecting the workpiece and machine tool from damage. A negative pressure pipe 902 connected to one side of the sleeve 904 is connected to a negative pressure dust collection device. During processing, the negative pressure dust collection device sucks in the generated dust and debris through the negative pressure pipe 902, maintaining a clean working environment. A ball bearing seat 903 installed at the bottom of the sleeve 904 allows the protective module 9 to move smoothly on the workpiece surface. The balls in the ball bearing seat 903 reduce friction, improving movement efficiency and processing accuracy. The protective module 9 is fixedly mounted on the outside of the output end of the machine head 8 by a fixing clip 910 and a fixing bolt 901. This installation method ensures the stability and reliability of the protective module 9 during processing.

[0045] After processing is completed, the machine head 8 is moved back to its initial position by adjusting the position of the slide plate and the lifting frame 7, in preparation for the next processing.

[0046] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended that all changes that fall within the meaning and range of equivalents of the claims are included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0047] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A CNC machine tool with a protective device, comprising a base plate (1), a bracket (2) mounted on the base plate (1), a lifting frame (7) mounted on the bracket (2), and a machine head (8) mounted on the lifting frame (7), characterized in that: A first motor (3) is installed on the bracket (2), and a lead screw (4) is installed at the output end of the first motor (3). A first sliding plate (5) is installed on the bracket (2) via the first motor (3) and the lead screw (4). The lifting frame (7) is located on the first sliding plate (5). A protective module (9) is installed at the output end of the lifting frame (7) located at the machine head (8). A third motor (12) is installed on the base plate (1), and a lead screw (4) is also installed at the output end of the third motor (12). A second sliding plate (11) is slidably installed on the base plate (1) via the third motor (12) and the lead screw (4). A support plate (10) is provided on the second sliding plate (11). The protective module (9) is provided with a sleeve (904) and an inner liner (906). Both the sleeve (904) and the inner liner (906) are provided with bosses (907), and a spring (905) is installed between the bosses (907) of the sleeve (904) and the inner liner (906). The sleeve (904) and the inner liner (906) are elastically supported by the spring (905). A ball bearing seat (903) is installed at the bottom end of the sleeve (904).

2. The CNC machine tool with a protective device according to claim 1, characterized in that: The lifting frame (7) is equipped with a second motor (6), and the first slide plate (5) is slidably mounted on the second motor (6).

3. A CNC machine tool with a protective device according to claim 1, characterized in that: The first slide (5), the lifting frame (7), and the second slide (11) are all equipped with sliders, and the bracket (2), the first slide (5), and the base plate (1) are all equipped with corresponding slide rails. The first slide (5), the lifting frame (7), and the second slide (11) are installed on the first slide (5), the lifting frame (7), and the second slide (11) by the cooperation of the sliders and the slide rails.

4. A CNC machine tool with a protective device according to claim 1, characterized in that: The inner liner tube (906) has a boss (907) with a fixing clip (910), and the protective module (9) is installed on the outside of the output end of the machine head (8) by the fixing clip (910) and the fixing bolt (901).

5. A CNC machine tool with a protective device according to claim 1, characterized in that: The bottom end of the inner liner tube (906) is provided with a baffle (909), and a through hole (908) is provided on the baffle (909). The output end of the machine head (8) passes through the through hole (908) to process the workpiece.

6. A CNC machine tool with a protective device according to claim 1, characterized in that: A negative pressure pipe (902) is connected to one side of the sleeve (904), and the negative pressure pipe (902) is connected to the negative pressure dust collection equipment.

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