A machine tool bed

Abstract

The utility model discloses a bed body for numerical control machine tool, including body, bed body connecting base, bed body side guard board, chip removal passage casing and bed body, the body top is equipped with Z axle linear guide rail, the body has the fixed plate frame of vertical one side, the bed body connecting base is installed in the body front end through base modularization quick -release support, the bottom of bed body is connected to one end of inclined bracing frame, the other end of inclined bracing frame is fixed to bed body connecting base, the bed body is set up in Z axle linear guide rail sliding block and fixed plate frame top, the bed body side guard board is installed in bed body both sides through side guard board modularization quick -release seat, the utility model discloses the accurate guidance support of Z axle linear guide rail and fixed plate frame, cooperate the stable triangle structure of inclined bracing frame, rear support and bed body connecting base constitution, effectively reduce the vibration and deformation of machine tool operation, ensure workpiece positioning accurate in processing process, thereby guarantee the high -precision processing of numerical control machine tool.

Description

Technical Field

[0001] This utility model relates to the field of CNC machine tool technology, specifically to a bed for a CNC machine tool. Background Technology

[0002] In the design and application of CNC machine tools, the machine bed, as a core load-bearing component, directly affects the machining accuracy, service life, and production efficiency of the machine tool due to its structural stability, protective performance, ease of maintenance, and chip removal efficiency. Traditional CNC machine tool beds have many shortcomings. For example, some bed structures are cumbersome to install and disassemble, resulting in high maintenance costs; some beds have unreasonable protective designs, failing to effectively prevent chips, coolant, and other contaminants from entering critical internal components, affecting normal machine operation; and some beds have poorly designed chip removal channels, leading to poor chip removal, chip accumulation, and easy wear of components, reducing machine tool accuracy. Therefore, there is an urgent need for a CNC machine tool bed with optimized structure and superior performance to meet the demands of modern high-precision and high-efficiency machining. Utility Model Content

[0003] The purpose of this utility model is to provide a bed for CNC machine tools to solve the problems mentioned in the background art, such as inconvenient installation and disassembly, poor protective performance, and low chip removal efficiency of traditional bed.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a bed for a CNC machine tool, comprising a machine body, a bed connecting base, bed side guards, a chip removal channel housing, and a bed. The top of the machine body is provided with a Z-axis linear guide rail. The machine body has a fixed plate frame on one vertical side. The bed connecting base is installed at the front end of the machine body via a modular quick-release bracket. One end of a diagonal brace is connected to the bottom of the bed, and the other end of the diagonal brace is fixed to the bed connecting base. The bed is mounted on the top of the Z-axis linear guide rail slider and the fixed plate frame. The bed side guards are installed on both sides of the bed via modular quick-release brackets. The chip removal channel housing penetrates the lower part of the bed and extends to the outside of the machine body. A top cover is provided at the top of the bed to cover the upper surface of the bed. A rear support is detachably connected to the rear end of the bed. An elastic adapter bushing is detachably installed between the top cover and the rear support.

[0005] As a preferred technical solution of this utility model, the Z-axis linear guide is arranged along the length of the machine body, the Z-axis linear guide is bolted to the top surface of the machine body, the fixing plate is an L-shaped frame structure, the bottom of the fixing plate is welded to the side of the machine body, the top plane of the fixing plate is in contact with the bottom surface of the bed, and the bed connecting base is detachably connected to the machine body through the pin structure of the modular quick-release bracket of the base.

[0006] As a preferred technical solution of this utility model, the inclined support frame is inclined at 30 degrees. The two ends of the inclined support frame are fixed to the bottom reinforcing rib of the bed and the side of the bed connecting base by bolts. The bed is a box-shaped casting. The bottom surface of the bed is provided with a mounting groove corresponding to the Z-axis linear guide slider. The two sides of the bed are provided with mounting holes for the modular quick-release seat of the side guard plate.

[0007] As a preferred technical solution of this utility model, the bed side guard plate is quickly disassembled and assembled with the bed through the locking structure of the modular quick-release seat of the side guard plate; the chip removal channel housing is U-shaped, the inlet of the chip removal channel housing is connected to the chip removal port at the bottom of the bed, and the outlet of the chip removal channel housing passes through the side wall of the machine body; the top cover of the bed is connected to the upper edge of the bed through a buckle.

[0008] As a preferred technical solution of this utility model, the rear support is a T-shaped column structure, the bottom of the rear support is bolted to the rear end of the bed, the top of the rear support supports the top cover of the bed, the elastic adapter bushing is made of spring steel, and the two ends of the elastic adapter bushing are respectively embedded in the grooves of the rear support and the bed, and the modular quick-release bracket of the base includes a positioning pin and a rotating lock.

[0009] As a preferred technical solution of this utility model, the machine body, bed and rear support are cast iron parts, the bed, bed side guard plate, bed top guard and rear support form a closed protective space, and the chip removal channel shell penetrates the bottom of the space.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. The Z-axis linear guide and fixed plate frame provide precise guidance and support, while the diagonal brace, rear support, and bed connecting base form a stable triangular structure, enhancing the overall rigidity of the bed. The cast iron body, bed frame, and rear support further improve load-bearing capacity, effectively reducing vibration and deformation during machine operation, ensuring accurate workpiece positioning during machining, and thus guaranteeing high-precision machining of the CNC machine tool;

[0012] 2. By adopting modular quick-release brackets for the base and modular quick-release seats for the side guards, the bed-connecting base and side guards can be quickly disassembled and assembled, significantly shortening maintenance and repair time. The chip removal channel housing and enclosed protective space design not only efficiently removes waste chips but also prevents chips and coolant from entering the machine tool's interior, reducing component wear and malfunctions, lowering maintenance costs, and improving machine tool efficiency and service life. Attached Figure Description

[0013] Figure 1 This is a schematic diagram showing the rear part of the bed frame of this utility model;

[0014] Figure 2This is a schematic diagram showing the side view of the bed frame of this utility model;

[0015] Figure 3 This is a schematic diagram illustrating the structure of the bed frame of this utility model;

[0016] Figure 4 for Figure 3 Enlarged view of point A.

[0017] In the diagram: 1. Machine body; 2. Z-axis linear guide; 3. Fixed plate frame; 4. Bed connecting base; 5. Diagonal brace; 6. Bed; 7. Bed side guard plate; 8. Chip removal channel housing; 9. Bed top cover; 10. Rear support; 11. Elastic adapter bushing; 12. Side guard plate modular quick-release seat; 13. Base modular quick-release bracket. Detailed Implementation

[0018] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0019] Please see Figure 1-4This utility model provides a bed for a CNC machine tool, including a machine body 1, a bed connecting base 4, a bed side guard plate 7, a chip removal channel housing 8, and a bed 6. The top of the machine body 1 is equipped with a Z-axis linear guide 2. The machine body 1 has a fixed plate frame 3 on one vertical side. The bed connecting base 4 is installed at the front end of the machine body 1 via a modular quick-release bracket 13. The bottom of the bed 6 is connected to one end of a diagonal brace 5, and the other end of the diagonal brace 5 is fixed to the bed connecting base 4. The bed 6 is mounted on the top of the slider of the Z-axis linear guide 2 and the fixed plate frame 3. The bed side guard plate... 7. Modular quick-release brackets 12 are installed on both sides of the bed 6 via side guards. The chip removal channel housing 8 runs through the lower part of the bed 6 and extends to the outside of the machine body 1. A top guard 9 is installed on the top of the bed 6 to cover the upper surface of the bed 6. A rear support 10 is detachably connected to the rear end of the bed 6. An elastic adapter liner 11 is detachably installed between the top guard 9 and the rear support 10. The Z-axis linear guide 2 on the top of the machine body 1 provides Z-axis motion guidance for the bed 6 and related components. The slider cooperates with the bottom of the bed 6, allowing the bed 6 to move along the Z-axis. The fixing plate 3 is vertically fixed to one side of the machine body 1 to provide auxiliary support for the bed 6 from the side and enhance stability. The bed connecting base 4 is installed at the front end of the machine body 1 via a modular quick-release bracket 13 for easy disassembly and maintenance. One end of the diagonal brace 5 is connected to the bottom of the bed 6, and the other end is fixed to the bed connecting base 4, forming a triangular stable structure to reinforce the bed 6. Side guard plates 7 are installed on both sides of the bed 6 via modular quick-release mounts 12. The chip removal channel housing 8 runs through the lower part of the bed 6 and extends to the outside of the machine body 1, used to collect and remove machining chips. The top guard 9 covers the upper surface of the bed 6, and the rear support 10 is fixed to the rear end of the bed 6. The elastic adapter bushing 11 is installed between the top guard 9 and the rear support 10, which can buffer the vibration and displacement between components during machine operation, realizing stable support, guiding motion, convenient maintenance, effective protection and smooth chip removal of the bed, and improving the reliability and service life of the machine tool.

[0020] The Z-axis linear guide 2 is arranged along the length of the machine body 1 and is bolted to the top surface of the machine body 1. The fixed plate frame 3 is an L-shaped frame structure. The bottom of the fixed plate frame 3 is welded to the side of the machine body 1, and the top plane of the fixed plate frame 3 is flush with the bottom surface of the bed 6. The bed connecting base 4 is detachably connected to the machine body 1 through the pin structure of the modular quick-release bracket 13. The Z-axis linear guide 2 is arranged along the length of the machine body 1 and fixed with bolts. Its slider drives the bed 6 to move linearly along the Z-axis. The fixed plate frame 3 is an L-shaped frame structure. The bottom is welded to the side of the machine body 1, and the top plane is flush with the bottom surface of the bed 6, which shares the weight of the bed 6 and the force during processing. The bed connecting base 4 can be quickly connected or separated from the machine body 1 with the help of the pin structure of the modular quick-release bracket 13, which improves the efficiency of machine tool assembly and maintenance and reduces maintenance time and cost.

[0021] The diagonal brace 5 is inclined at 30 degrees. Both ends of the diagonal brace 5 are fixed to the bottom reinforcing rib of the bed 6 and the side of the bed connecting base 4 by bolts. The bed 6 is a box-shaped casting. The bottom surface of the bed 6 has a mounting groove corresponding to the slider of the Z-axis linear guide 2. The two sides of the bed 6 are provided with mounting holes for the modular quick-release seat 12 of the side guard plate. The diagonal brace 5 is inclined at 30 degrees. Both ends are fixed to the bottom reinforcing rib of the bed 6 and the side of the bed connecting base 4 by bolts, which disperses and transmits the force of the bed 6 and enhances the overall rigidity. The bed 6 is a box-shaped casting. The mounting groove on the bottom surface cooperates with the slider of the Z-axis linear guide 2 to realize positioning and movement. The mounting holes on both sides are used to fix the modular quick-release seat 12 of the side guard plate to install the bed side guard plate 7. The matching structure of the bed 6, the guide rail slider and the side guard plate ensures accurate movement guidance and effective protection, and improves the reliability of machine tool operation.

[0022] The bed side guard plate 7 is quickly installed and removed from the bed 6 via the locking structure of the modular quick-release seat 12. The chip removal channel housing 8 is U-shaped, with its inlet connected to the chip removal port at the bottom of the bed 6 and its outlet passing through the side wall of the machine body 1. The bed top cover 9 is connected to the upper edge of the bed 6 via a snap fastener. The bed side guard plate 7 can be quickly installed or removed using the locking structure of the modular quick-release seat 12, facilitating maintenance. The chip removal channel housing 8 is U-shaped, with its inlet connected to the chip removal port at the bottom of the bed 6. Under the action of gravity or auxiliary devices, the waste chips and coolant generated during processing flow along the chip removal channel housing 8 to the outlet and are discharged to the outside of the machine body 1. The bed top cover 9 is connected to the upper edge of the bed 6 via a snap fastener, covering and protecting the upper parts of the bed. The bed top cover 9 effectively protects the upper parts of the bed, preventing the intrusion of external debris and improving the machine tool's protective performance.

[0023] The rear support 10 is a T-shaped column structure. The bottom of the rear support 10 is bolted to the rear end of the bed 6, and the top of the rear support 10 supports the top cover 9 of the bed. The elastic adapter bushing 11 is made of spring steel. Both ends of the elastic adapter bushing 11 are embedded in the grooves of the rear support 10 and the bed 6, respectively. The modular quick-release bracket 13 of the base includes a positioning pin and a rotating lock. The rear support 10 is a T-shaped column structure. The bottom is bolted to the rear end of the bed 6, and the top supports the top cover 9 of the bed, which plays a role in rear support and stability. The elastic adapter bushing 11 is made of spring steel. Both ends are embedded in the grooves of the rear support 10 and the bed 6. When the machine tool vibrates or the parts expand and contract with heat, the stress is buffered by elastic deformation. The positioning pin and the rotating lock of the modular quick-release bracket 13 of the base cooperate to realize the quick and accurate installation and removal of the bed connecting to the base 4.

[0024] The machine body 1, bed 6, and rear support 10 are made of cast iron. Bed 6, bed side guards 7, bed top guard 9, and rear support 10 form a closed protective space, and the chip removal channel housing 8 extends through the bottom of this space. The machine body 1, bed 6, and rear support 10 are made of cast iron, utilizing the high strength and high rigidity of cast iron to provide stable support. Bed 6, bed side guards 7, bed top guard 9, and rear support 10 form a closed protective space, preventing chips, coolant, etc., from entering the machine tool. The chip removal channel housing 8 extends through the bottom of this closed space, allowing the waste chips generated during machining to fall directly into the chip removal channel and be discharged.

[0025] In this invention, the Z-axis linear guide rail 2 on the top of the machine body 1 provides Z-axis motion guidance for the bed 6 and related components. The slider cooperates with the bottom of the bed 6, allowing the bed 6 to move along the Z-axis. The fixed plate frame 3 is vertically fixed to one side of the machine body 1, providing auxiliary support for the bed 6 from the side and enhancing stability. The bed connecting base 4 is installed at the front end of the machine body 1 via the modular quick-release bracket 13, facilitating quick disassembly and maintenance. One end of the diagonal brace 5 is connected to the bottom of the bed 6, and the other end is fixed to the bed connecting base 4, forming a triangular stable structure to reinforce the bed 6. The bed side guards 7 are installed on both sides of the bed 6 via the modular quick-release bracket 12. The chip removal channel housing 8 passes through the lower part of the bed 6 and extends to the outside of the machine body 1, used to collect and remove machining waste chips. The top cover 9 of the bed covers the upper surface of the bed 6, and the rear support 10 is fixed to the rear end of the bed 6. The elastic adapter liner 11 is installed between the top cover 9 and the rear support 10, which can buffer the vibration and displacement between components during machine operation, realizing stable support, guiding motion, convenient maintenance, effective protection and smooth chip removal of the bed, and improving the reliability and service life of the machine tool. The Z-axis linear guide 2 is arranged along the length of the machine body 1 and fixed with bolts. Its slider drives the bed 6 to move linearly along the Z-axis. The fixed plate frame 3 is an L-shaped frame structure, with the bottom welded to the side of the machine body 1 and the top plane fitting against the bottom surface of the bed 6, distributing the weight of the bed 6 and the force during processing. The bed connecting base 4 can be quickly connected or separated from the machine body 1 by means of the pin structure of the modular quick-release bracket 13, improving the efficiency of machine tool assembly and maintenance and reducing maintenance time and costs.

[0026] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A bed for a CNC machine tool, comprising a machine body (1), a bed connecting base (4), a bed side guard plate (7), a chip removal channel housing (8), and a bed (6), characterized in that: The top of the machine body (1) is provided with a Z-axis linear guide rail (2). The machine body (1) has a fixed plate frame (3) on one vertical side. The bed connecting base (4) is installed on the front end of the machine body (1) through a modular quick-release bracket (13). The bottom of the bed (6) is connected to one end of a diagonal brace (5). The other end of the diagonal brace (5) is fixed to the bed connecting base (4). The bed (6) is mounted on the top of the slider of the Z-axis linear guide rail (2) and the fixed plate frame (3). The bed side guards (7) are installed on both sides of the bed (6) via the side guard modular quick-release seat (12). The chip removal channel housing (8) runs through the lower part of the bed (6) and extends to the outside of the machine body (1). The bed top cover (9) provided on the top of the bed (6) covers the upper surface of the bed (6). The rear end of the bed (6) is detachably connected to the rear bracket (10). An elastic adapter bushing (11) is detachably installed between the bed top cover (9) and the rear bracket (10).

2. A bed for a CNC machine tool according to claim 1, characterized in that: The Z-axis linear guide (2) is arranged along the length of the body (1). The Z-axis linear guide (2) is bolted to the top surface of the body (1). The fixed plate frame (3) is an L-shaped frame structure. The bottom of the fixed plate frame (3) is welded to the side of the body (1). The top plane of the fixed plate frame (3) is in contact with the bottom surface of the bed (6). The bed connecting base (4) is detachably connected to the body (1) through the pin structure of the modular quick-release bracket (13).

3. A bed for a CNC machine tool according to claim 1, characterized in that: The inclined support frame (5) is set at a 30-degree angle. The two ends of the inclined support frame (5) are fixed to the bottom reinforcing rib of the bed (6) and the side of the bed connecting base (4) by bolts. The bed (6) is a box-shaped casting. The bottom surface of the bed (6) is provided with an installation groove corresponding to the slider of the Z-axis linear guide (2). The two sides of the bed (6) are provided with mounting holes for the modular quick-release seat (12) of the side guard plate.

4. A bed for a CNC machine tool according to claim 1, characterized in that: The side guard plate (7) of the bed is quickly disassembled and assembled with the bed (6) through the locking structure of the modular quick-release seat (12) of the side guard plate. The chip removal channel housing (8) is U-shaped. The inlet of the chip removal channel housing (8) is connected to the chip removal port at the bottom of the bed (6). The outlet of the chip removal channel housing (8) passes through the side wall of the machine body (1). The top cover (9) of the bed is connected to the upper edge of the bed (6) through a buckle.

5. A bed for a CNC machine tool according to claim 1, characterized in that: The rear support (10) is a T-shaped column structure. The bottom of the rear support (10) is bolted to the rear end of the bed (6). The top of the rear support (10) supports the top cover (9) of the bed. The elastic adapter bushing (11) is made of spring steel. The two ends of the elastic adapter bushing (11) are respectively embedded in the grooves of the rear support (10) and the bed (6). The modular quick-release bracket (13) of the base includes a positioning pin and a rotating lock.

6. A bed for a CNC machine tool according to claim 1, characterized in that: The machine body (1), bed (6) and rear support (10) are made of cast iron. The bed (6), bed side guard plate (7), bed top guard (9) and rear support (10) form a closed protective space. The chip removal channel shell (8) penetrates the bottom of the space.

Images