A fully automatic numerical control milling machine

Abstract

The present application relates to the technical field of milling machine, in particular to a kind of full-automatic numerical control milling machine.The present application includes: bed, milling assembly, the outer side fixed component of workpiece from outside fixed, the inner side fixed component of workpiece from inside further fixed;The outer side fixed component includes: fixed jaw, the telescopic cylinder of telescopic fixed jaw;The inner side fixed component includes: reinforcing part, the limiting disc of reinforcing part to workpiece reinforcement, make the reset piece of reinforcing part after rotation, and, the rotating assembly of the limiting disc lifting or rotating.The present application can be reinforced to the inside of cylindrical die steel by the inner side fixed component while the outer side fixed component is fixed to cylindrical die steel, so as to better reinforcement effect;And rotating assembly can drive cylindrical die steel to rotate while driving reinforcing part to reinforce, so as to facilitate milling cutter milling.

Description

Technical Field

[0001] This invention relates to the field of milling machine technology, and more specifically to a fully automatic CNC milling machine. Background Technology

[0002] A milling machine is a machine tool that uses a milling cutter to machine multiple surfaces of a workpiece. When machining cylindrical mold steel, the cylindrical mold steel needs to be fixed before milling.

[0003] Utility model patent application number 201721012872.5 discloses a high-stability milling machine for mold steel processing, relating to the field of mold steel processing technology. This high-stability milling machine for mold steel processing includes a bed plate. A vertically arranged first telescopic rod is fixedly connected to the top of the bed plate. A horizontally arranged second telescopic rod is fixedly connected to the top of the first telescopic rod. A first locking bolt is provided on the first telescopic rod, and a second locking bolt is provided on the second telescopic rod. A drive motor is fixedly connected to the other end of the second telescopic rod. A cutting disc is fixedly connected to the output shaft of the drive motor. Four columns are fixedly connected to the upper surface of the bed plate. This high-stability milling machine for mold steel processing improves the buffering performance between the support plate and the bed plate, enhances the stability of the milling machine during mold steel cutting, and facilitates its widespread use. It solves the problem that existing milling machines for mold steel processing have poor stability, hindering their widespread adoption.

[0004] However, this patent can only fix the cylindrical mold steel on the outside, and the fixing effect is poor. It may affect the machining accuracy during the milling process. In addition, this patent can only drive the cylindrical mold steel to rotate and move along the triple axis, but cannot drive the cylindrical mold steel to rotate.

[0005] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. Summary of the Invention

[0006] The purpose of this invention is to provide a fully automatic CNC milling machine that can effectively solve the above-mentioned technical problems.

[0007] To achieve the objectives of this invention, the following technical solution is adopted: A fully automatic CNC milling machine includes: a machine base, a milling assembly, an outer fixing assembly for fixing a workpiece from the outside, and an inner fixing assembly for further fixing the workpiece from the inside; the outer fixing assembly includes: a fixing jaw, and a telescopic cylinder for driving the fixing jaw to extend and retract; the inner fixing assembly includes: a reinforcing member, a limiting plate for driving the reinforcing member to reinforce the workpiece, a reset member for resetting the reinforcing member after rotation, and a rotating assembly for driving the limiting plate to rise, fall, or rotate; the limiting plate includes: a plate body, and a mechanism for driving the reinforcing member to rotate outward when the plate body rotates. The rotating assembly includes: a first limiting component and a second limiting component that drives the reinforcing member to rotate upward when the disc rotates; the rotating assembly includes: a turntable threadedly connected to the limiting disc and a motor that drives the turntable to rotate; when the motor drives the turntable to rotate, the turntable drives the limiting disc to rotate, thereby driving the reinforcing member to rise while rotating outward, thereby reinforcing the workpiece from the inside; when the motor drives the limiting disc to rotate in the opposite direction, the turntable drives the reinforcing member to separate from the workpiece, or after the reinforcing member separates from the workpiece, drives the workpiece to rotate.

[0008] Furthermore, the reinforcement is also provided with a contact block made of elastic material, and the contact block is cylindrical.

[0009] Furthermore, the bottom surface of the reinforcement is an inclined bottom surface, which causes the reinforcement to rise or fall under the action of the second limiting member; the side surface of the reinforcement is an inclined side surface, which causes the reinforcement to rotate outward under the action of the first limiting member.

[0010] Furthermore, the fixing claw includes: a mounting base connected to the piston rod of the telescopic cylinder, and a telescopic fixing rod mounted on the mounting base; the side of the mounting base facing the workpiece is arc-shaped.

[0011] Furthermore, the outer fixing component also includes: a base for fixing the telescopic cylinder; the base is provided with a sliding groove, and is slidably connected to the mounting seat through the sliding groove.

[0012] Furthermore, the base is fixedly mounted on the annular base, and the annular base is rotatably mounted on the top of the machine base.

[0013] Furthermore, a filter screen is installed on the top of the base, a protective plate is installed around the top of the base, a funnel-shaped collection trough is installed at the bottom of the base, and a collection box is provided below the collection trough.

[0014] Furthermore, the milling assembly includes: a milling cutter and a motor that drives the milling cutter to mill; the machine base is also fixedly mounted with a lateral movement assembly that drives the milling cutter to move laterally, a longitudinal movement assembly that drives the milling cutter to move longitudinally, and a lifting assembly that drives the milling cutter to rise and fall; the lateral movement assembly includes: a sliding seat one and a cylinder one that drives the sliding seat one to slide so as to drive the milling cutter to move laterally; the longitudinal movement assembly includes: a sliding seat two and a cylinder two that drives the sliding seat two to slide so as to drive the milling cutter to move longitudinally; the lifting assembly includes: a slider and a cylinder three that drives the slider to rise and fall so as to drive the milling cutter to rise and fall.

[0015] Compared with the prior art, the present invention has the following beneficial effects: the fully automatic CNC milling machine of the present invention can fix the cylindrical mold steel with the outer fixing component, and can also reinforce the inner side of the cylindrical mold steel with the inner fixing component, thereby achieving a better reinforcement effect; and the rotating component can drive the reinforcement component to reinforce while driving the cylindrical mold steel to rotate, thereby facilitating milling by the milling cutter. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0017] Figure 1 This is a schematic diagram of the structure of a fully automatic CNC milling machine according to the present invention; Figure 2 This is a side view of a fully automatic CNC milling machine according to the present invention; Figure 3 This is a schematic diagram of the structure of the base of a fully automatic CNC milling machine according to the present invention; Figure 4 for Figure 3 A magnified view of part A in the middle; Figure 5 This is a diagram showing the extended inner fixing component of a fully automatic CNC milling machine according to the present invention. Figure 6 This is a schematic diagram of the inner and outer fixing components of a fully automatic CNC milling machine according to the present invention; Figure 7 This is a schematic diagram of the limiting disk of the present invention; Figure 8 This is a top view of the limiting disk of the present invention; Figure 9 This is a schematic diagram of the reinforcement component of the present invention; Figure 10 This is a cross-sectional view of the reinforcement component of the present invention.

[0018] In the diagram: 1. Machine base; 2. Milling assembly; 3. Outer fixing assembly; 4. Inner fixing assembly; 31. Fixing claw; 32. Telescopic cylinder; 41. Reinforcing component; 42. Limiting plate; 421. Plate body; 422. Limiting component one; 423. Limiting component two; 431. Turntable; 411. Contact block; 412. Inclined bottom surface; 413. Inclined side surface; 311. Mounting base; 312. Fixing rod; 33. Base; 5. Annular base. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are some embodiments of the present invention, but not all embodiments.

[0020] In the description of this invention, it should be understood that the terms "center," "lateral," "longitudinal," "front," "rear," "left," "right," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention. When a component is referred to as being "fixed to" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. When a component is considered to be "set on" another component, it can be directly set on the other component or there may be an intermediate component at the same time. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0021] like Figures 1 to 10 As shown, the present invention provides a fully automatic CNC milling machine, comprising: a machine base 1, a milling assembly 2, an outer fixing assembly 3 for fixing the workpiece from the outside, and an inner fixing assembly 4 for further fixing the workpiece from the inside. The outer fixing component 3 includes: a fixing claw 31 and a telescopic cylinder 32 that drives the fixing claw 31 to extend and retract; the telescopic cylinder 32 drives the fixing claw 31 to fix the workpiece from the outside, so as to facilitate the milling process of the workpiece.

[0022] The fixed claw 31 includes: a mounting base 311 connected to the piston rod of the telescopic cylinder 32, and a telescopic fixed rod 312 mounted on the mounting base 311. The fixed rod 312 has a telescopic function. When clamping the workpiece, the fixed rod 312 extends and retracts within a set range according to the surface change of the workpiece, which can better fit the surface of the workpiece and thus achieve a better clamping effect on the workpiece. The telescopic distance of the fixed rod 312 is set to 2-5 mm, so that it can play a buffering and adjustment role while ensuring its fixing role.

[0023] The side of the mounting base 311 facing the workpiece is curved. During the milling process of cylindrical mold steel, the curved surface of the cylindrical mold steel is more difficult to fix than a conventional square surface. Setting the side of the mounting base 311 facing the workpiece as curved allows for better matching with the surface shape of the cylindrical mold steel. It also limits the basic curvature formed between the fixing rods 312, reducing the distance that the fixing rods 312 need to extend or retract when under force. In essence, the curved surface of the mounting base 311 is a large curved surface, and the curved surface formed between the fixing rods 312 is a small curved surface. The combination of the large and small curved surfaces enables the fixing of cylindrical mold steel of different sizes or curvatures. The horizontal and vertical sides of the mounting base 311 are both curved, thus providing a good fixing effect when the cylindrical mold steel is placed vertically or horizontally.

[0024] The inner fixing component 4 includes: a reinforcing member 41, a limiting plate 42 that drives the reinforcing member 41 to reinforce the workpiece, a reset member that resets the reinforcing member 41 after rotation, and a rotating component that drives the limiting plate 42 to rise or rotate. The reset member can be a spring, torsion spring, etc., as long as it can reset the reinforcing member 41 when the external force is lost. The limiting plate 42 includes: a plate body 421, a first limiting member 422 that drives the reinforcing member 41 to rotate outward when the plate body 421 rotates, and a second limiting member 423 that drives the reinforcing member 41 to rotate upward when the plate body 421 rotates. The first limiting member 422 is a protrusion integrally formed with the plate body 421, and the second limiting member 423 is a connecting rod that is detachably installed on the plate body 421, wherein the length of the first limiting member 422 is less than the length of the second limiting member 423.

[0025] When the disc 421 rotates, the first limiting member 422 drives the reinforcing member 41 to rotate outward. Simultaneously, the second limiting member 423 drives the reinforcing member 41 to rise, causing the fixing member to rotate outward while rising, thus reinforcing the cylindrical mold steel on its inner side. After reinforcement, when the disc 421 rotates further, it drives the limiting disc 42 to rotate, allowing for milling with a milling cutter. Existing milling cutters are mostly three-axis moving types (up, down, left, right, forward, and backward), lacking milling machines with a rotating worktable based on three-axis movement. However, the rotation of the limiting disc 42... It can further improve the flexibility of milling. For example, when cutting annular grooves, it is only necessary to rotate the limiting disk 42, which is more convenient and the program is simpler. When the disk body 421 rotates in the opposite direction, the first limiting component 422 and the second limiting component 423 rotate in the opposite direction. At this time, under the combined influence of the force of the reset component and gravity, the reinforcing component 41 retracts inward while descending. When the reinforcing component 41 retracts back to the initial position, the top of the reinforcing component 41 is parallel to or lower than the disk body 421. And when the disk body 421 continues to rotate, it will drive the limiting disk 42 to rotate.

[0026] Thus, when the milling machine needs to mill cylindrical mold steel, on the one hand, the cylindrical mold steel is fixed on the outside by the outer fixing component 3, and on the other hand, the cylindrical mold steel is reinforced from the inside by the fixing component, thereby achieving a better fixing effect; moreover, it can also drive the workpiece to rotate, thus making milling easier; when the milling machine mills non-cylindrical mold steel or other workpieces, the reinforcing component 41 retracts to below the limiting plate 42, and the workpiece can be fixed by the outer fixing component 3, and the workpiece can be driven to rotate by the motor to facilitate milling.

[0027] The rotating assembly includes a turntable 431 threadedly connected to the limiting disk 42, and a motor that drives the turntable 431 to rotate. Since the turntable 431 is threadedly connected to the limiting disk 42, when the turntable 431 rotates, it either drives the limiting disk 42 to rise or drives the turntable 431 to rotate when it reaches the end of the thread. Abutment blocks are installed on the turntable 431 and the limiting disk 42, and the sides of the two abutment blocks that are close to each other are inclined. When the turntable 431 drives the limiting disk 42 to rotate, the abutment blocks abut against each other to avoid excessive force on the thread and damage. When the turntable 431 drives the limiting disk 42 to rise or fall, the inclined surfaces of the two abutment blocks separate to avoid interference.

[0028] Thus, when the motor drives the turntable 431 to rotate, the turntable 431 drives the limiting plate 42 to rotate, thereby causing the reinforcing component to rise and rotate outward, thus reinforcing the workpiece from the inside. When the motor drives the limiting plate 42 to rotate in the opposite direction, the turntable 431 causes the reinforcing component to separate from the workpiece and hide it on the same plane as the limiting plate 42 or below the limiting plate 42, or after the reinforcing component separates from the workpiece, it drives the workpiece to rotate. As can be seen from the above description, when the motor is working, it can not only reinforce the inside of the cylindrical mold steel, but also drive the cylindrical mold steel to rotate, which is convenient for cooperating with the milling cutter to complete the milling work.

[0029] The bottom surface of the reinforcement member 41 is an inclined bottom surface 412, which causes the reinforcement member 41 to rise or fall under the action of the second limiting member 423; the side surface of the reinforcement member 41 is an inclined side surface 413, which causes the reinforcement member 41 to rotate outward under the action of the first limiting member 422.

[0030] The reinforcement 41 is also provided with a contact block 411 made of elastic material. The contact block 411 is cylindrical and has a multi-layered cylindrical structure. It is used to make flexible contact when clamping the workpiece, so as to avoid scratching the workpiece when fixing it. At the same time, it increases the contact area and plays a better role in fixing.

[0031] The outer fixing component 3 also includes: a base 33 for fixing the telescopic cylinder 32; a sliding groove is provided on the base 33, and the mounting seat 311 is slidably installed on the sliding groove; the base 33 is fixedly installed on the annular base 5, and the annular base 5 is rotatably installed on the top of the machine base 1, so that the telescopic cylinder 32 can be rotated by rotating the annular base 5, so as to adjust the clamping angle of the telescopic cylinder 32 according to different types of workpieces, and after milling, the angle for removing the workpiece can be adjusted by rotating the annular base 5, so as to remove the workpiece.

[0032] The fixing rods 312 are arranged in a rectangular array, with three rows in the horizontal direction and three columns in the vertical direction, for a total of nine rods. With this arrangement, when the fixing rods 312 on both sides clamp the cylindrical mold steel, the contact surface can fix the workpiece on the outside at at least three different points, thereby achieving a better fixing effect.

[0033] A filter screen is also installed on the top of the machine base 1 to filter waste chips and waste liquid; a protective plate is installed on the outer periphery of the top of the machine base 1 to prevent milling waste chips from splashing and to facilitate the collection of waste chips; a funnel-shaped collection trough is installed at the bottom of the machine base 1, and a collection box is set below the collection trough to collect the waste liquid and impurities after milling and filtration.

[0034] The milling assembly 2 includes: a milling cutter and a motor that drives the milling cutter to mill; the machine base 1 is also fixedly mounted with a transverse moving assembly that drives the milling cutter to move laterally, a longitudinal moving assembly that drives the milling cutter to move longitudinally, and a lifting assembly that drives the milling cutter to rise and fall; the transverse moving assembly includes: a sliding seat one and a cylinder one that drives the sliding seat one to slide so as to drive the milling cutter to move laterally; the longitudinal moving assembly includes: a sliding seat two and a cylinder two that drives the sliding seat two to slide so as to drive the milling cutter to move longitudinally; the lifting assembly includes: a slider and a cylinder three that drives the slider to rise and fall so as to drive the milling cutter to rise and fall. The above-mentioned milling assembly 2, transverse moving assembly, longitudinal moving assembly and lifting assembly are existing technologies. As long as they can mill the workpiece and drive the milling cutter to move horizontally and vertically, they are sufficient. This invention will not elaborate further.

[0035] All standard parts used in this invention can be purchased commercially, and irregularly shaped parts can be custom-made according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all use conventional models from the prior art, and the circuit connections also employ conventional connection methods from the prior art, which will not be detailed here. Content not described in detail in this specification belongs to the prior art known to those skilled in the art. It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A fully automatic CNC milling machine, characterized in that, include: Machine base, milling assembly, outer fixing assembly for fixing the workpiece from the outside, and inner fixing assembly for further fixing the workpiece from the inside; The outer fixing component includes: a fixing claw and a telescopic cylinder that drives the fixing claw to extend and retract; The inner fixing component includes: a reinforcing member, a limiting plate that drives the reinforcing member to reinforce the workpiece, a resetting member that resets the reinforcing member after rotation, and a rotating component that drives the limiting plate to rise or rotate. The limiting plate includes: a plate body, a first limiting member that drives the reinforcing member to rotate outward when the plate body rotates, and a second limiting member that drives the reinforcing member to rotate upward when the plate body rotates. The rotating assembly includes: a turntable threadedly connected to the limiting plate, and a motor that drives the turntable to rotate; When the motor drives the turntable to rotate, the turntable drives the limiting plate to rotate, thereby driving the reinforcement part to rise and rotate outward at the same time, thereby reinforcing the workpiece from the inside; when the motor drives the limiting plate to rotate in the opposite direction, the turntable drives the reinforcement part to separate from the workpiece, or after the reinforcement part separates from the workpiece, drives the workpiece to rotate. The reinforcement is also provided with a contact block made of elastic material, and the contact block is cylindrical. The bottom surface of the reinforcement is an inclined bottom surface, which causes the reinforcement to rise or fall under the action of the second limiting member; the side surface of the reinforcement is an inclined side surface, which causes the reinforcement to rotate outward under the action of the first limiting member. The fixing claw includes: a mounting base connected to the piston rod of the telescopic cylinder, and a telescopic fixing rod mounted on the mounting base; the side of the mounting base facing the workpiece is arc-shaped; The outer fixing component further includes: a base for fixing the telescopic cylinder; the base is provided with a sliding groove, and is slidably connected to the mounting seat through the sliding groove; The base is fixedly mounted on the annular base, and the annular base is rotatably mounted on the top of the machine base; When the disc rotates, the first limiting component drives the reinforcing member to rotate outward, while the second limiting component drives the reinforcing member to rise. This causes the fixing component to rise and rotate outward, thus reinforcing the cylindrical mold steel on the inner side. After reinforcement, when the disc rotates further, it drives the limiting disc to rotate, allowing for milling with a milling cutter. When the disc rotates in the opposite direction, the first and second limiting components rotate in the opposite direction. At this time, under the combined influence of the resetting component and gravity, the reinforcing member descends and retracts inward. When the reinforcing member returns to its initial position, the top of the reinforcing member is no higher than the disc. The body; and as the disc continues to rotate, it will drive the limiting disc to rotate; when the milling machine is milling non-cylindrical mold steel or other workpieces, the reinforcing member retracts below the limiting disc, and the workpiece can be fixed by the outer fixing component, and the workpiece can be driven to rotate by the motor; when the motor drives the turntable to rotate, the turntable drives the limiting disc to rotate, thereby driving the reinforcing member to rise and rotate outward, thereby reinforcing the workpiece from the inside; when the motor drives the limiting disc to rotate in the opposite direction, the turntable drives the reinforcing member to separate from the workpiece, and does not rise above the bottom of the limiting disc, or after the reinforcing member separates from the workpiece, it drives the workpiece to rotate.

2. The fully automatic CNC milling machine as described in claim 1, characterized in that, A filter screen is also installed on the top of the base, a protective plate is installed on the outer periphery of the top of the base, a funnel-shaped collection trough is installed at the bottom of the base, and a collection box is set below the collection trough.

3. The fully automatic CNC milling machine as described in claim 2, characterized in that, The milling assembly includes: a milling cutter and a motor that drives the milling cutter to mill; The base is also fixedly installed with a lateral moving component that drives the milling cutter to move laterally, a longitudinal moving component that drives the milling cutter to move longitudinally, and a lifting component that drives the milling cutter to rise and fall. The lateral movement component includes: a sliding seat and a cylinder that drives the sliding seat to slide, thereby driving the milling cutter to move laterally. The longitudinal movement component includes: a second sliding seat and a second cylinder that drives the second sliding seat to slide, thereby driving the milling cutter to move longitudinally. The lifting assembly includes: a slider and a cylinder that drives the slider to rise and fall, thereby driving the milling cutter to rise and fall.

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