Numerical control double-sided round bar slotting milling machine

Abstract

The invention provides a numerical control double-sided round bar slotting milling machine, and belongs to the technical field of machine manufacturing. Comprising a base and two machining and cutting assemblies, a transverse driving assembly and two longitudinal driving assemblies are arranged on the upper surface of the base, a movable seat is installed at the output end of the transverse driving assembly, and the two machining and cutting assemblies are installed at the output ends of the two longitudinal driving assemblies; a plurality of three-jaw hydraulic chucks are installed on the upper surface of the movable base, and gantry fixing assemblies are arranged on the upper sides of the three-jaw hydraulic chucks. The multiple three-jaw hydraulic chucks and the clamping and fixing assemblies are arranged, the three-jaw hydraulic chucks can be matched with the bottom ends of the round bars with different diameters for fixation, the clamping and fixing assemblies fix the top ends of the round bars, the bending problem of long and thin round bar machining is solved, multiple pieces of long and thin round bars are fed at a time, and the machining efficiency is improved. And multiple workpieces can be sequentially machined in cooperation with the transverse driving assembly and the two longitudinal driving assemblies, the production efficiency is improved compared with that of traditional single-side single-time machining equipment, and the machining cost is greatly reduced.

Description

Technical Field

[0001] This invention belongs to the field of mechanical manufacturing technology, specifically relating to a CNC double-sided round bar slotting milling machine. Background Technology

[0002] In the field of mechanical manufacturing, the symmetrical machining of round bar workpieces (such as wrench positions, slots, drilling, tapping, chamfering, etc.) is a core process in industries such as hardware tools, transmission components, and automotive parts, which requires extremely high machining accuracy and production efficiency.

[0003] Traditional machining methods mainly rely on conventional lathes, single-head milling machines, or combinations of manually operated equipment. Because they use single-sided, single-processing, multiple clamping and flipping are required to complete the double-sided processes, making it difficult to achieve simultaneous processing of multiple workpieces. The capacity of a single machine cannot match the needs of large-scale production. Moreover, multiple clamping can easily produce positioning errors, resulting in the symmetry and coaxiality of double-sided features (such as wrench positions and slots) exceeding the standards. At the same time, when machining slender round bars, the lack of effective support at the end makes them susceptible to bending and vibration due to cutting forces, resulting in uneven groove width and excessive surface roughness. Summary of the Invention

[0004] (1) Technical problems to be solved To address the shortcomings of existing technologies, the present invention aims to provide a CNC double-sided round bar slotting milling machine, which solves the problems of existing processing methods that mainly rely on conventional lathes, single-head milling machines or manual operation combined equipment, making it difficult to achieve simultaneous processing of multiple workpieces. At the same time, when processing slender round bars, due to the lack of effective support at the end, they are easily affected by cutting forces, resulting in bending and vibration, causing uneven groove width and excessive surface roughness.

[0005] (2) Technical solution To solve the above-mentioned technical problems, the present invention provides a CNC double-sided round bar grooving milling machine, including a base and two machining and cutting components. The upper surface of the base is provided with a transverse drive component and two longitudinal drive components. The output end of the transverse drive component is equipped with a movable seat. The two machining and cutting components are installed at the output ends of the two longitudinal drive components. The upper surface of the movable seat is equipped with multiple three-jaw hydraulic chucks. The upper side of the three-jaw hydraulic chucks is provided with a gantry fixing component. The gantry fixing assembly includes a crossbeam, with uprights fixedly connected to both ends of the crossbeam. The bottom end of the uprights is fixedly connected to a movable seat. Multiple clamping and fixing assemblies are fixedly connected to the crossbeam and multiple mounting holes are provided. The three-jaw hydraulic chuck and the clamping and fixing assemblies are used to fix one end and the other end of the round bar, respectively. The transverse drive assembly is used to align the round bar with the machining and cutting assembly. The longitudinal drive assembly is used to drive the machining and cutting assembly to process the round bar.

[0006] Preferably, the machining and cutting assembly includes a base and a machining motor mounted on the base, and a machining tool is mounted on the output end of the machining motor.

[0007] Preferably, the lateral drive assembly includes a lateral drive motor and a lateral slide rail. The lateral drive motor is fixedly connected to the base, and the output end of the lateral drive motor is threadedly connected to the movable seat via a screw. The movable seat is slidably connected to the upper surface of the base via the lateral slide rail.

[0008] Preferably, the longitudinal drive assembly includes a longitudinal drive motor and a longitudinal slide rail. The longitudinal drive motor is fixedly connected to the base, and the output end of the longitudinal drive motor is threadedly connected to the base via a screw. The base is slidably connected to the upper surface of the base via the longitudinal slide rail.

[0009] Preferably, the clamping and fixing assembly includes a vertical plate installed on the rear side of the upper surface of the crossbeam, a movable plate slidably connected to the front of the vertical plate, two telescopic cylinders fixedly connected to the back of the vertical plate, the output end of the telescopic cylinders being fixedly connected to the movable plate, and a gripper cylinder corresponding to the mounting hole being fixedly connected to the movable plate.

[0010] Preferably, the upright plate has a clearance hole corresponding to the gripper cylinder, and two slide rods are fixedly connected to the back of the movable plate. The other end of the slide rod passes through the upright plate, and the slide rod is slidably connected to the upright plate.

[0011] Preferably, the mounting hole extends through the upper and lower sides and the front side of the crossbeam, and the mounting hole is larger than the maximum clamping size of the three-jaw hydraulic chuck.

[0012] Preferably, the base has a cross-shaped structure, and the sliding directions of the lateral drive component and the two longitudinal drive components intersect at ninety degrees.

[0013] Preferably, the upper surface of the base is provided with drainage grooves on both the front and rear sides. Two drainage motors are fixedly connected to the left side of the base. The right side of the drainage groove extends through the right side of the base, and a spiral auger is provided in the drainage groove. The output end of the drainage motor is fixedly connected to the spiral auger.

[0014] Preferably, there are two clamping and fixing components, which are respectively arranged on the upper and lower sides of the crossbeam. A connecting plate is fixedly connected to the back of the upright plate. The crossbeam has an L-shaped structure and a double-headed motor and two sliding rods are fixedly connected to the back. Two lead screws are fixedly connected to the output end of the double-headed motor. The two lead screws and the two sliding rods all pass through the connecting plate. The threads of the two lead screws are opposite and threadedly connected to the connecting plate. The sliding rods are slidably connected to the connecting plate.

[0015] Beneficial effects Compared with the prior art, the beneficial effects of the present invention are as follows: The above solution uses multiple three-jaw hydraulic chucks and clamping and fixing components. The three-jaw hydraulic chucks can be used to fix the bottom of round bars of different diameters, and the clamping and fixing components fix the top of the round bars, solving the bending problem in the processing of slender round bars. It also enables multiple parts to be loaded at once. With the help of the transverse drive component and two longitudinal drive components, multiple workpieces can be processed sequentially. The production efficiency is 8 times higher than that of traditional single-sided single-processing equipment, and the processing cost is greatly reduced.

[0016] In the above solution, the fingers of the pneumatic gripper cylinder and the double-set clamping and fixing components are adapted to round bars of different thicknesses. When clamping a slender round bar, the two sets of clamping and fixing components are located on the upper and lower sides, respectively fixing the bottom and top of the round bar. This not only clamps the slender round bar better, but also the lower clamping and fixing components are closer to the machining and cutting components, which can reduce the length of the bottom of the slender round bar that is suspended, effectively suppressing the sway and vibration of the workpiece end, avoiding bending during the machining process, and improving the machining quality. Attached Figure Description

[0017] Figure 1 This is a left-side three-dimensional structural diagram of a CNC double-sided round bar grooving milling machine.

[0018] Figure 2 This is a right-side three-dimensional structural diagram of a CNC double-sided round bar grooving milling machine.

[0019] Figure 3 This is a top view of a CNC double-sided round bar grooving milling machine.

[0020] Figure 4 This is a schematic diagram of the clamping and fixing assembly structure of a CNC double-sided round bar grooving milling machine.

[0021] Figure 5 This is a schematic diagram of the machining and cutting components of a CNC double-sided round bar grooving milling machine.

[0022] Figure 6 This is a schematic diagram of the gantry fixing assembly structure of a CNC double-sided round bar grooving milling machine.

[0023] Figure 7 This is a front view schematic diagram of the gantry fixing assembly in Embodiment 2 of a CNC double-sided round bar grooving milling machine.

[0024] Figure 8 This is a rear view schematic diagram of the gantry fixing assembly in Embodiment 2 of a CNC double-sided round bar grooving milling machine.

[0025] The labels in the attached diagram are as follows: 1. Base; 2. Machining and cutting assembly; 3. Lateral drive assembly; 4. Longitudinal drive assembly; 5. Movable seat; 6. Three-jaw hydraulic chuck; 7. Gantry fixing assembly; 8. Crossbeam; 9. Upright; 10. Clamping and fixing assembly; 11. Mounting hole; 201. Base; 202. Machining motor; 203. Machining tool; 301. Lateral drive motor; 302. Lateral slide rail; 401. Longitudinal drive motor; 402. Longitudinal slide rail; 1001. Upright plate; 1002. Movable plate; 1003. Telescopic cylinder; 1004. Gripper cylinder; 1005. Connecting plate; 1006. Double-headed motor; 1007. Slide rod; 1008. Lead screw; 21. Drainage groove; 22. Drainage motor; 23. Spiral auger.

[0026] As shown in the figure, specific structures and devices are labeled in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs, and such adjustments or modifications are still included in the scope of the appended claims. Detailed Implementation

[0027] Example 1 An embodiment of the present invention provides a CNC double-sided round bar grooving milling machine, including a base 1 and two machining and cutting components 2. The upper surface of the base 1 is provided with a transverse drive component 3 and two longitudinal drive components 4. A movable seat 5 is installed at the output end of the transverse drive component 3. The two machining and cutting components 2 are installed at the output ends of the two longitudinal drive components 4. Multiple three-jaw hydraulic chucks 6 are installed on the upper surface of the movable seat 5. A gantry fixing component 7 is provided on the upper side of the three-jaw hydraulic chucks 6. The two machining and cutting components 2 are respectively located on the two sides of the round bar. The gantry fixing component 7 includes a crossbeam 8, with uprights 9 fixedly connected to both ends of the crossbeam 8. The bottom end of the uprights 9 is fixedly connected to the movable seat 5. Multiple clamping and fixing components 10 are fixedly connected to the crossbeam 8 and multiple mounting holes 11 are provided. The number of three-jaw hydraulic chuck 6, clamping and fixing components 10, and mounting holes 11 can be four or more. The three-jaw hydraulic chuck 6 and clamping and fixing components 10 are used to fix one end and the other end of the round bar, respectively. The transverse drive component 3 is used to align the round bar with the machining and cutting component 2. The longitudinal drive component 4 is used to drive the machining and cutting component 2 to process the round bar. In use, the transverse drive assembly 3 moves the movable seat 5, the three-jaw hydraulic chuck 6, and the gantry fixing assembly 7 to the left side. Then, the round bar is placed in the mounting hole 11, with the bottom fixed by the three-jaw hydraulic chuck 6 and the top fixed by the clamping and fixing assembly 10. The transverse drive assembly 3 then moves the round bar to the machining and cutting assembly 2. The longitudinal drive assembly 4 drives the machining and cutting assembly 2 to process the round bar. Then, the transverse drive assembly 3 moves the round bar again for continuous processing, thereby realizing the simultaneous processing of multiple workpieces and improving production efficiency by 8 times.

[0028] like Figure 1 and Figure 3 As shown, in this embodiment, the machining cutting assembly 2 includes a base 201 and a machining motor 202 mounted on the base 201. A machining tool 203 is mounted on the output end of the machining motor 202. The output end of the machining motor 202 can drive the machining tool 203 through a synchronous belt drive. The machining tool 203 can perform composite machining such as single-sided / double-sided milling, drilling, chamfering, and tapping, reducing process flow, reducing positioning errors, and replacing multiple traditional machines with one machine, saving space and investment costs.

[0029] like Figure 1 and Figure 3 As shown, in this embodiment, the transverse drive assembly 3 includes a transverse drive motor 301 and a transverse slide rail 302. The transverse drive motor 301 is fixedly connected to the base 1. The output end of the transverse drive motor 301 is threadedly connected to the movable seat 5 through a screw. The movable seat 5 is slidably connected to the upper surface of the base 1 through the transverse slide rail 302. The transverse drive assembly 3 is equipped with an automatic dimensional control system driven by a CNC system, which is used to precisely control the movement position of the round bar workpiece without manual correction.

[0030] like Figure 1 and Figure 2 As shown, in this embodiment, the longitudinal drive assembly 4 includes a longitudinal drive motor 401 and a longitudinal slide rail 402. The longitudinal drive motor 401 is fixedly connected to the base 1. The output end of the longitudinal drive motor 401 is threadedly connected to the base 201 through a screw. The base 201 is slidably connected to the upper surface of the base 1 through the longitudinal slide rail 402.

[0031] like Figure 1 and Figure 4As shown, in this embodiment, the clamping and fixing assembly 10 includes a vertical plate 1001 installed on the rear side of the upper surface of the crossbeam 8. The vertical plate 1001 can be fixedly installed. A movable plate 1002 is slidably connected to the front side of the vertical plate 1001. Two telescopic cylinders 1003 are fixedly connected to the back side of the vertical plate 1001. The output end of the telescopic cylinder 1003 is fixedly connected to the movable plate 1002. A gripper cylinder 1004 corresponding to the mounting hole 11 is fixedly connected to the movable plate 1002. The gripper cylinder 1004 is used to clamp and fix the top end of the round bar workpiece to suppress the sway and vibration during the processing.

[0032] like Figure 4 As shown, in this embodiment, the upright plate 1001 has a clearance hole corresponding to the gripper cylinder 1004. Two slide rods are fixedly connected to the back of the movable plate 1002. The other end of the slide rod passes through the upright plate 1001. The slide rod is slidably connected to the upright plate 1001. After the movable plate 1002 drives the gripper cylinder 1004 to move backward, it can enter the clearance hole.

[0033] like Figure 1 and Figure 4 As shown, in this embodiment, the mounting hole 11 penetrates the upper and lower sides and the front side of the crossbeam 8. The mounting hole 11 is larger than the maximum clamping size of the three-jaw hydraulic chuck 6. The base 1 has a cross-shaped structure, and the sliding directions of the transverse drive assembly 3 and the two longitudinal drive assemblies 4 intersect at ninety degrees.

[0034] like Figure 3 As shown in this embodiment, drainage grooves 21 are provided on both the front and rear sides of the upper surface of the base 1. Two drainage motors 22 are fixedly connected to the left side of the base 1. The right side of the drainage groove 21 extends through the right side of the base 1, and a spiral auger 23 is provided inside the drainage groove 21. The output end of the drainage motor 22 is fixedly connected to the spiral auger 23, so that waste material can enter the drainage groove 21 and the spiral auger 23 is rotated by the drainage motor 22 to automatically discharge the cutting waste generated during the processing.

[0035] Example 2 like Figure 7 and Figure 8As shown, in this embodiment, there are two clamping and fixing components 10, which are respectively arranged on the upper and lower sides of the crossbeam 8. A connecting plate 1005 is fixedly connected to the back of the upright plate 1001. The crossbeam 8 has an L-shaped structure and a double-headed motor 1006 and two slide rods 1007 are fixedly connected to its back. Two lead screws 1008 are fixedly connected to the output end of the double-headed motor 1006. The two lead screws 1008 and the two slide rods 1007 all pass through the connecting plate 1005. The threads of the two lead screws 1008 are opposite and are threadedly connected to the connecting plate 1005. The slide rods 1007 are slidably connected to the connecting plate 1005. By setting two sets of clamping and fixing components 10, when clamping a slender round bar, the two sets of clamping and fixing components 10 are located on the upper and lower sides, respectively clamping the round bar. The bottom and top of the bar are fixed, which not only better clamps the slender round bar, but also the lower clamping and fixing component 10 is closer to the machining cutting component 2, which can reduce the length of the bottom of the slender round bar that is suspended, avoid bending during processing, and improve the processing quality. When clamping a short and thick round bar, the double-head motor 1006 is started to drive the two lead screws 1008 to rotate. Since the threads of the two lead screws 1008 are opposite and are threadedly connected to the connecting plate 1005, the two lead screws 1008 can drive the two sets of clamping and fixing components 10 to move closer to each other during rotation, and fix the top of the short and thick round bar. Since two sets of clamping and fixing components 10 are used for fixing, the fixing with a smaller jaw cylinder 1004 will also be very firm, improving the processing quality.

[0036] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details have been described in detail in the above preferred embodiments; however, those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits have not been described in detail.

[0037] Those skilled in the art will understand that all or part of the steps in the methods of the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc.

[0038] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A CNC double-sided round bar slotting milling machine, characterized in that, It includes a base (1) and two machining and cutting components (2). The upper surface of the base (1) is provided with a transverse drive component (3) and two longitudinal drive components (4). The output end of the transverse drive component (3) is equipped with a movable seat (5). The two machining and cutting components (2) are installed at the output ends of the two longitudinal drive components (4). The upper surface of the movable seat (5) is equipped with multiple three-jaw hydraulic chucks (6). The upper side of the three-jaw hydraulic chucks (6) is provided with a gantry fixing component (7). The gantry fixing assembly (7) includes a crossbeam (8), with uprights (9) fixedly connected to both ends of the crossbeam (8). The bottom end of the uprights (9) is fixedly connected to the movable seat (5). Multiple clamping and fixing assemblies (10) are fixedly connected to the crossbeam (8) and multiple mounting holes (11) are provided. The three-jaw hydraulic chuck (6) and the clamping and fixing assemblies (10) are used to fix one end and the other end of the round bar, respectively. The transverse drive assembly (3) is used to align the round bar with the machining and cutting assembly (2). The longitudinal drive assembly (4) is used to drive the machining and cutting assembly (2) to process the round bar.

2. The CNC double-sided round bar grooving milling machine according to claim 1, characterized in that, The machining cutting assembly (2) includes a base (201) and a machining motor (202) mounted on the base (201). A machining tool (203) is mounted on the output end of the machining motor (202).

3. The CNC double-sided round bar grooving milling machine according to claim 2, characterized in that, The lateral drive assembly (3) includes a lateral drive motor (301) and a lateral slide rail (302). The lateral drive motor (301) is fixedly connected to the base (1). The output end of the lateral drive motor (301) is threadedly connected to the movable seat (5) through a screw. The movable seat (5) is slidably connected to the upper surface of the base (1) through the lateral slide rail (302).

4. The CNC double-sided round bar slotting milling machine according to claim 3, characterized in that, The longitudinal drive assembly (4) includes a longitudinal drive motor (401) and a longitudinal slide rail (402). The longitudinal drive motor (401) is fixedly connected to the base (1). The output end of the longitudinal drive motor (401) is threadedly connected to the base (201) through a screw. The base (201) is slidably connected to the upper surface of the base (1) through the longitudinal slide rail (402).

5. The CNC double-sided round bar grooving milling machine according to claim 1, characterized in that, The clamping and fixing assembly (10) includes a vertical plate (1001) mounted on the rear side of the upper surface of the crossbeam (8). A movable plate (1002) is slidably connected to the front of the vertical plate (1001). Two telescopic cylinders (1003) are fixedly connected to the back of the vertical plate (1001). The output end of the telescopic cylinder (1003) is fixedly connected to the movable plate (1002). A gripper cylinder (1004) corresponding to the mounting hole (11) is fixedly connected to the movable plate (1002).

6. The CNC double-sided round bar slotting milling machine according to claim 5, characterized in that, The upright plate (1001) has a clearance hole corresponding to the gripper cylinder (1004). Two sliding rods are fixedly connected to the back of the movable plate (1002). The other end of the sliding rod passes through the upright plate (1001) and the sliding rod is slidably connected to the upright plate (1001).

7. The CNC double-sided round bar grooving milling machine according to claim 6, characterized in that, The mounting hole (11) extends through the upper and lower sides and the front side of the crossbeam (8), and the mounting hole (11) is larger than the maximum clamping size of the three-jaw hydraulic chuck (6).

8. The CNC double-sided round bar grooving milling machine according to claim 1, characterized in that, The base (1) has a cross-shaped structure, and the sliding directions of the lateral drive component (3) and the two longitudinal drive components (4) intersect at ninety degrees.

9. The CNC double-sided round bar grooving milling machine according to claim 8, characterized in that, The base (1) has drainage grooves (21) on both the front and back sides of its upper surface. Two drainage motors (22) are fixedly connected to the left side of the base (1). The right side of the drainage groove (21) extends through the right side of the base (1). A spiral auger (23) is installed inside the drainage groove (21). The output end of the drainage motor (22) is fixedly connected to the spiral auger (23).

10. The CNC double-sided round bar grooving milling machine according to claim 1, characterized in that, The clamping and fixing components (10) are two in number and are respectively set on the upper and lower sides of the crossbeam (8). The back of the upright plate (1001) is fixedly connected to the connecting plate (1005). The crossbeam (8) has an L-shaped structure and the back is fixedly connected to a double-head motor (1006) and two slide rods (1007). The output end of the double-head motor (1006) is fixedly connected to two lead screws (1008). The two lead screws (1008) and the two slide rods (1007) all pass through the connecting plate (1005). The threads of the two lead screws (1008) are opposite and are threadedly connected to the connecting plate (1005). The slide rods (1007) are slidably connected to the connecting plate (1005).

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