Numerical control machine tool

Abstract

The invention provides a numerical control machine tool which comprises a machine tool body, a tool setting seat and a support located on the right side of the tool setting seat are arranged in the machine tool body, a tool setting gauge is arranged in the tool setting seat, a protective cover covering the tool setting gauge is elastically arranged on the tool setting seat in a sliding fit mode, and an air cylinder is transversely arranged on the tool setting seat. The end of a piston rod of the air cylinder is connected with a transverse moving piece attached to the support, an air supply assembly capable of being connected with an air pipe is slidably arranged on the support in an up-down moving mode, and a rotary blowing assembly connected to the air supply assembly is arranged on the support. The tool setting gauge has the advantages that the protection cover can be automatically pushed away to expose the tool setting gauge, spiral chip blowing is conducted on a tool, the protection cover automatically resets under the elastic action to protect the tool setting gauge, and the chip blowing effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of processing equipment, in particular to a numerically controlled machine tool. Background Art

[0002] A CNC machine tool is an automated machine tool equipped with a program control system. It effectively solves the problem of machining complex, precise, small-batch, and multi-variety parts. It is a flexible, high-efficiency automated machine tool that represents the development direction of modern machine tool control technology and is a typical mechatronics product. Each time a CNC machine tool's tool processes a part, it needs to be changed. The tool moves to the tool change position, the tool in the tool magazine rotates, and the magazine door is opened. Iron chips are likely to remain on the tool head, and subsequent iron chips can scratch the workpiece or damage the tool. Currently, a fixed-direction air blow is mostly used to blow air at the tool, which has a small coverage area and poor chip blowing effect. Furthermore, the tool setter lacks automatic protection, and during tool machining, the tool setter will be contaminated by impurities such as iron chips and coolant, thus affecting tool setting accuracy. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a CNC machine tool that can automatically push open the protective cover to expose the tool setting instrument and perform spiral chip blowing on the tool. The protective cover is automatically reset under the action of elasticity to protect the tool setting instrument and improve the chip blowing effect.

[0004] The present invention provides a CNC machine tool, comprising a machine tool body 1, wherein a tool setting seat 2 and a bracket 6 located on the right side of the tool setting seat 2 are provided in the machine tool body 1, a tool setting instrument 3 is provided in the tool setting seat 2, a protective cover 4 covering the tool setting instrument 3 is elastically slidably provided on the tool setting seat 2, a cylinder 7 is laterally provided on the tool setting seat 2, the piston rod end of the cylinder 7 is connected to a transverse member 8 that fits the bracket 6, an air supply component 10 that can be connected to an air pipe is slidably provided on the bracket 6 for moving up and down, a rotary blowing component 11 connected to the air supply component 10 is provided on the bracket 6, when the transverse member 8 moves to the left, the transverse member 8 drives the air supply component 10 to lift and lower with the rotary blowing component 11, and at the same time, the transverse member 8 drives the rotary blowing component 11 to rotate and blow, and the rotary blowing component 11 performs spiral chip blowing on the cutter head, and the transverse member 8 pushes the protective cover 4 open to expose the tool setting instrument 3.

[0005] Furthermore, the transverse member 8 is composed of a push bar 8.1 on the left side connected to a square frame 8.2 on the right side. The push bar 8.1 is symmetrically arranged front to back, and the square frame 8.2 is symmetrically provided with guide grooves 8.3 on the front and back sides. A hinge block 9 is rotatably provided at the guide groove 8.3, and a rack 8.4 is laterally provided on the inner side of the square frame 8.2.

[0006] Furthermore, the guide groove 8.3 is composed of a horizontal section on the left and a triangular section on the right, and the hinge block 9 is rotatably arranged at the diagonal position of the triangular section close to the horizontal section, and the hinge block 9 is tilted against the plane at the bottom of the guide groove 8.3.

[0007] Furthermore, fixed blocks 12 for being pushed by the push bar 8.1 are symmetrically provided on the front and rear sides of the protective cover 4.

[0008] Furthermore, the air supply assembly 10 includes a lifting rod 10.3 symmetrically arranged front and back, and the lifting rod 10.3 is slidably fitted on the bracket 6 for up and down movement, and a sliding column 10.4 is longitudinally provided on the inner side of the lifting rod 10.3, which is slidably fitted in the guide groove 8.3 and cooperates with the hinge block 9. A stabilizing sleeve 10.1 is installed on the upper end of the lifting rod 10.3, and an air nozzle 10.2 that can be connected to the air pipe is passed through the stabilizing sleeve 10.1.

[0009] Furthermore, the rotary blowing assembly 11 includes a rotating part 11.1 rotating in the stabilizing sleeve 10.1, and a curved rod 11.3 is symmetrically provided at the bottom of the rotating part 11.1 along its axis. A first gear 11.4 and a second gear 11.6 that are meshed with each other are rotatably provided on the bracket 6. The second gear 11.6 can be engaged with the rack 8.4. The first gear 11.4 is coaxially arranged with the rotating part 11.1, and the curved rod 11.3 is vertically passed through the first gear 11.4.

[0010] Furthermore, a rotating drum 11.5 is coaxially provided at the bottom of the first gear 11.4 and rotates on the bracket 6, and the two curved rods 11.3 are located inside the rotating drum 11.5.

[0011] Furthermore, the bottom of the rotating member 11.1 extends outward to form a bottom ring, and the top of the rotating member 11.1 is installed with a mounting ring 11.2.

[0012] Furthermore, the outer ring of the rotating member 11.1 is provided with an outer ring groove 11.1.1 communicating with the air nozzle 10.2, and the outer ring groove 11.1.1 is provided with blowing holes 11.1.2 evenly distributed along the circumference of its axis, and the inner wall of the rotating member 11.1 is provided with inner ring grooves 11.1.3 at equal intervals.

[0013] Furthermore, a stepped hole is transversely opened at the left end of the tool holder 2, and a slide rod 5 connected to the protective cover 4 is slidably mounted in the stepped hole. An elastic member connecting the protective cover 4 and the stepped hole is disposed on the outer cover of the slide rod 5.

[0014] The advantages of the present invention are that: the protective cover can be automatically pushed open to expose the tool setting instrument and perform spiral chip blowing on the tool, and the protective cover is automatically reset under the action of elasticity to protect the tool setting instrument and improve the chip blowing effect; the protective cover prevents impurities such as iron chips and coolant generated during the processing from contaminating or damaging the tool setting instrument; the spiral airflow can more comprehensively cover various parts of the tool, especially the dead angles such as the grooves and blades of the tool, and remove iron chips more thoroughly; the push bar can push the protective cover to move left to expose the tool setting instrument, and when the transverse moving part moves left, the guide groove can make the air supply assembly rise and fall, and when the transverse moving part moves right, the guide groove keeps the air supply assembly stationary, and the rack can drive the rotating part of the rotary blowing assembly to rotate; the transverse moving part moves left, and the sliding column of the air supply assembly rises along the triangular section of the guide groove and then falls to reset, and the sliding column rises and then falls with the lifting rod, the stabilizing sleeve, and the rotary blowing assembly, and the sliding bar moves up and down, and the sliding bar moves up and down with the lifting rod, the stabilizing sleeve, and the rotary blowing assembly. The column is blocked by the hinge block and can only rise. When the transverse moving part moves to the right, the sliding column of the air supply assembly does not move at the bottom of the guide groove. The sliding column pushes the hinge block and enters the horizontal section of the guide groove to reset. The hinge block is reset under the action of gravity; in the process of lifting and lowering the rotary blowing assembly, the rack of the transverse moving part meshes with the second gear, and the second gear rotates with the first gear, and the first gear drives the rotating part to rotate through two curved rods. The lifted and rotated rotating part moves in a spiral manner, and the compressed air is blown spirally toward the tool through the air nozzle and the rotating part; the mounting ring and the bottom ring fit the upper and lower end faces of the stabilizing sleeve, the rotating part is installed in the stabilizing sleeve, and then the mounting ring is installed; the compressed air enters the outer ring groove through the air nozzle, and then blows toward the tool through the blowing hole from the outer ring groove. The compressed air blown to the tool will rebound to the inner wall of the rotating part, and the inner ring groove can make the rebounded compressed air changeable and rebound toward the tool, thereby blowing the chips clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A perspective view of the present invention; Figure 2 It is a partial perspective view of the present invention; Figure 3 It is a partial structural schematic diagram of the present invention; Figure 4 It is a partial front view of the present invention; Figure 5 It is a partial top view of the present invention; Figure 6 for Figure 5 AA cross-sectional view; Figure 7 This is a partial front view of the present invention when the transverse member moves left and the guide groove drives the sliding column to rise; Figure 8 This is a partial front view of the present invention when the transverse member moves to the left and the guide groove drives the slide column to descend; Figure 9 This is a partial front view of the present invention when the tool is aligned after the traverse member has moved to the left to the bottom; Figure 10This is a partial front view of the present invention when the traverse member is reset to the right and the protective cover covers the tool setting instrument; Figure 11 for Figure 3 A magnified view of part B; Figure 12 for Figure 5 Magnified view of part C; Figure 13 for Figure 6 An enlarged view of the D portion; Figure 14 It is a structural diagram of the transverse member and the hinge block of the present invention; Figure 15 It is a structural schematic diagram of the rotating part and the curved rod of the present invention. DETAILED DESCRIPTION

[0016] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0017] See Figures 1 to 15The present invention provides a CNC machine tool, which includes a machine tool body 1, a turntable, a tool holder and a tool magazine provided in the machine tool, a tool setting seat 2 and a bracket 6 located on the right side of the tool setting seat 2 provided in the machine tool body 1, a tool setting instrument 3 provided in the tool setting seat 2, a protective cover 4 covering the tool setting instrument 3 is elastically slidably provided on the tool setting seat 2, and the protective cover prevents impurities such as iron filings and coolant generated during the processing from contaminating or damaging the tool setting instrument, a cylinder 7 is horizontally provided on the tool setting seat 2, and the end of the piston rod of the cylinder 7 is connected to a transverse member 8 that fits the bracket 6, the bracket is in a circular shape, and an air supply that can be connected to an air pipe is slidably provided on the bracket 6 for moving up and down. Component 10, a rotary blowing component 11 connected to the air supply component 10 is provided on the bracket 6. When the transverse member 8 moves to the left, the transverse member 8 drives the air supply component 10 to lift and lower the rotary blowing component 11. At the same time, the transverse member 8 drives the rotary blowing component 11 to rotate and blow. The rotary blowing component 11 performs spiral chip blowing on the cutter head. Compressed air is used as a power source to spray compressed air to the tool to form a powerful airflow. The spiral airflow can more comprehensively cover various parts of the tool, especially the dead corners such as the grooves and blades of the tool, and remove iron chips more thoroughly. The transverse member 8 pushes the protective cover 4 to expose the tool setting instrument 3. After the tool has processed the workpiece, the tool moves to the tool changing position, the tool in the tool magazine rotates and the tool magazine door is opened. During the rotation of the tool in the tool magazine, the cylinder drives the transverse member to move left, and the transverse member pushes open the protective cover, slowly revealing the tool setting instrument in the tool holder. At the same time, the transverse member drives the air supply assembly to rise with the rotary blow assembly and then descends to reset. During the lifting and lowering of the rotary blow assembly, the compressed gas enters the rotary blow assembly through the air supply assembly, and the transverse member drives the rotary blow assembly to rotate and blow, so that the rotary blow assembly blows chips spirally at the cutter head. At this time, the transverse member moves to the bottom left and the tool setting instrument is completely exposed. All of the above can be completed during the rotation of the tool, thereby saving time. After the tool magazine is changed, the tool moves to the tool setting instrument to complete the tool setting and move away, and then the transverse member moves right to reset. The transverse member keeps the air supply assembly that has been lowered and reset stationary, and the protective cover moves right to reset under the action of the elastic ground. The protective cover covers the tool setting instrument, and the replaced tool can process the workpiece on the turntable.

[0018] See Figure 11 、 Figure 14 The traverse member 8 consists of a push bar 8.1 on the left connected to a square frame 8.2 on the right. The push bar 8.1 is symmetrically arranged front to back. Guide grooves 8.3 are symmetrically arranged on the front and rear sides of the square frame 8.2. A hinge block 9 is rotatably arranged at the guide groove 8.3. A rack 8.4 is arranged laterally on the inner side of the square frame 8.2. Fixed blocks 12 that are pushed by the push bar 8.1 are symmetrically arranged on the front and rear sides of the protective cover 4. The push bar can push the protective cover to the left to expose the tool setting instrument. When the traverse member moves to the left, the guide groove can make the air supply assembly rise and fall. When the traverse member moves to the right, the guide groove keeps the air supply assembly stationary, and the rack can drive the rotating member of the rotary blow assembly to rotate.

[0019] Guide channel 8.3 consists of a left-side horizontal section connected to a right-side triangular section. An articulated block 9 is pivotally mounted at the diagonal corner of the triangular section, adjacent to the horizontal section. The articulated block 9 rests obliquely against the flat surface at the bottom of guide channel 8.3. When the transverse member moves left, the air supply assembly's slide column ascends along the triangular section of the guide channel and then descends to reset. The slide column is blocked by the articulated block and can only ascend. When the transverse member moves right, the air supply assembly's slide column remains stationary at the bottom of the guide channel, pushing the articulated block aside and resetting into the horizontal section of the guide channel. The articulated block then resets under the action of gravity.

[0020] The air supply assembly 10 includes a lifting rod 10.3 symmetrically arranged front and back. The lifting rod 10.3 is slidably fitted to the bracket 6 for vertical movement. A sliding column 10.4 is longitudinally provided on the inner side of the lifting rod 10.3, which is slidably fitted to the guide groove 8.3 and cooperates with the hinge block 9. A stabilizing sleeve 10.1 is installed on the upper end of the lifting rod 10.3, and an air nozzle 10.2 that can be connected to the air pipe is passed through the stabilizing sleeve 10.1. When the transverse moving part moves to the left, the guide groove drives the sliding column to rise and then fall. The sliding column is blocked by the hinge block and can only rise. The sliding column rises and then falls with the lifting rod, stabilizing sleeve, and rotary blow assembly. The rotating part of the rotary blow assembly is inserted into the tool. Compressed air is blown to the tool through the air nozzle and the rotary blow assembly. It rises and then falls to complete the secondary chip blowing. When the transverse moving part moves to the right to reset, the sliding column does not move at the bottom of the guide groove. The sliding column pushes away the hinge block and enters the horizontal section of the guide groove to reset.

[0021] The rotary blowing assembly 11 includes a rotating member 11.1 that rotates within the stabilizing sleeve 10.1. A curved rod 11.3 is symmetrically provided at the bottom of the rotating member 11.1 along its axis. A first gear 11.4 and a second gear 11.6 that are meshed with each other are rotatably provided on the bracket 6. The second gear 11.6 can mesh with the rack 8.4. The first gear 11.4 is coaxially arranged with the rotating member 11.1, and the curved rod 11.3 is vertically penetrated through the first gear 11.4. When the transverse moving part moves to the left, the rotary air blowing assembly rises and falls with the air supply assembly. During the lifting process, the rack of the transverse moving part engages with the second gear, the second gear rotates with the first gear, and the first gear drives the rotating part to rotate through two crankshafts. The lifted and rotating rotating part moves in a spiral manner, and the compressed air is blown spirally toward the tool through the air nozzle and the rotating part. The blown-off iron chips fall from the middle of the rotating part (the iron chips are blocked by the inner wall of the rotating part and will not splash out), and the iron chips attached to the tool are very few and will not affect the tool setter on the left.

[0022] A rotating drum 11.5 is coaxially arranged at the bottom of the first gear 11.4 and rotates on the bracket 6. The two curved rods 11.3 are located inside the rotating drum 11.5.

[0023] The bottom of the rotating member 11.1 extends outward to form a bottom ring, and the top of the rotating member 11.1 is equipped with a mounting ring 11.2. The mounting ring and the bottom ring fit the upper and lower end surfaces of the stabilizing sleeve, the rotating member is installed in the stabilizing sleeve, and then the mounting ring is installed.

[0024] See Figure 13 、 Figure 15 The outer ring of rotating member 11.1 is provided with an outer ring groove 11.1.1, which communicates with air nozzle 10.2. Air holes 11.1.2 are evenly distributed along the circumference of outer ring groove 11.1.1. The inner wall of rotating member 11.1 is also provided with inner ring grooves 11.1.3 at equal intervals. Compressed air enters the outer ring groove through the air nozzle and is then blown from the outer ring groove through the air holes toward the tool. The compressed air blown toward the tool rebounds against the inner wall of the rotating member. The inner ring groove allows the rebounded compressed air to be dispersed and rebounded toward the tool, thus blowing away the chips.

[0025] A stepped hole is formed transversely at the left end of the tool holder 2. A slide rod 5 connected to the protective cover 4 is slidably mounted in the stepped hole. An elastic member is mounted on the outer sleeve of the slide rod 5, connecting the protective cover 4 and the stepped hole. The elastic member is preloaded. When the push bar pushes the protective cover to the left, the elastic member can make the protective cover abut against the push bar, making the protective cover move left stably. When the push bar moves right to reset, the elastic member drives the protective cover to return to its original position.

[0026] The specific working process of the present invention is as follows: after the tool has processed the workpiece, the tool moves to the tool changing position, the tool in the tool magazine rotates and the tool magazine door is opened. During the rotation of the tool in the tool magazine, the cylinder drives the transverse member to move left, and the transverse member pushes open the protective cover, slowly revealing the tool setting instrument in the tool setting seat. At the same time, the guide groove drives the slide column to rise and then fall. The slide column is blocked by the hinge block and can only rise. The slide column rises with the lifting rod, the stabilizing sleeve, and the rotating blow assembly. The rotating member is inserted into the tool, such as Figure 7 As shown, the sliding column descends with the lifting rod, the stabilizing sleeve, and the rotary blowing assembly. During the lifting process, the rack of the transverse member meshes with the second gear, the second gear rotates with the first gear, and the first gear drives the rotating member to rotate through two crankshafts. The lifted and rotating rotating member moves in a spiral manner, and the compressed air is blown spirally toward the tool through the air nozzle through the outer ring groove and the blowing hole of the rotating member. The blown iron chips fall from the middle of the rotating member (the iron chips are blocked by the inner wall of the rotating member and will not splash out), and the iron chips attached to the tool are very few and will not affect the tool setter on the left. After rising, it descends to complete the secondary chip blowing. The spiral airflow can cover all parts of the tool more comprehensively, especially the dead angles such as the grooves and blades of the tool, and the iron chips are removed more thoroughly. At this time, the transverse member moves to the left to the bottom and the tool setter is completely exposed. All of the above can be completed in the process of tool rotation, thereby saving time. Figure 8 As shown in the figure, after the tool change is completed, the tool is moved to the tool setting instrument to complete the tool setting and then moved away, as shown in the figure. Figure 9 As shown, the transverse member then moves rightward to reset, the slide column remains stationary at the bottom of the guide groove, the stabilizing sleeve remains stationary, the slide column pushes the hinge block away and enters the horizontal section of the guide groove, the hinge block resets under the action of gravity and tilts against the plane at the bottom of the guide groove, the protective cover moves rightward to reset under the action of elasticity, and the protective cover covers the tool setting instrument, as shown in FIG. Figure 10As shown, the replaced tool can be used to process the workpiece on the turntable.

[0027] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A CNC machine tool, characterized in that: The present invention relates to a machine tool body, wherein a tool setting seat and a bracket located on the right side of the tool setting seat are provided in the machine tool body, a tool setting instrument is provided in the tool setting seat, a protective cover covering the tool setting instrument is elastically slidably provided on the tool setting seat, a cylinder is laterally provided on the tool setting seat, a transverse member which is attached to the bracket at the end of the piston rod of the cylinder, an air supply assembly which can be connected to an air pipe is slidably provided on the bracket so as to move up and down, a rotary blowing assembly connected to the air supply assembly is provided on the bracket, when the transverse member moves to the left, the transverse member drives the air supply assembly to lift and lower the rotary blowing assembly, and at the same time, the transverse member drives the rotary blowing assembly to rotate and blow, and the rotary blowing assembly performs spiral chip blowing on the cutter head, and the transverse member pushes the protective cover open to expose the tool setting instrument.

2. A CNC machine tool according to claim 1, characterized in that: The transverse moving member is composed of a push bar on the left side connected to a square frame on the right side. The push bar is symmetrically arranged front to back. Guide grooves are symmetrically arranged on the front and back sides of the square frame. A hinge block is rotatably arranged at the guide groove. A rack is laterally arranged on the inner side of the square frame.

3. A CNC machine tool according to claim 2, characterized in that: The guide groove is composed of a horizontal section on the left and a triangular section on the right. The hinge block is rotatably arranged at the diagonal position of the triangular section close to the horizontal section. The hinge block is tilted against the plane at the bottom of the guide groove.

4. A CNC machine tool according to claim 2, characterized in that: Fixed blocks for being pushed by the push strips are symmetrically arranged on the front and rear sides of the protective cover.

5. A CNC machine tool according to claim 2, characterized in that: The air supply assembly includes a lifting rod symmetrically arranged front and back, and the lifting rod is slidably fitted on the bracket for up and down movement. A sliding column is longitudinally provided on the inner side of the lifting rod, which is slidably fitted in the guide groove and cooperates with the hinge block. A stabilizing sleeve is installed on the upper end of the lifting rod, and an air nozzle that can be connected to the air pipe is passed through the stabilizing sleeve.

6. A CNC machine tool according to claim 5, characterized in that: The rotary blowing assembly includes a rotating part rotating in the stabilizing sleeve, a curved rod is symmetrically arranged on the bottom of the rotating part along its axis, a first gear and a second gear that are rotatably arranged on the bracket and are meshed with each other, the second gear can be meshed with the rack, the first gear is coaxially arranged with the rotating part, and the curved rod is vertically passed through the first gear.

7. A CNC machine tool according to claim 6, characterized in that: A rotating drum that rotates on the bracket is coaxially arranged at the bottom of the first gear, and the two curved rods are located inside the rotating drum.

8. A CNC machine tool according to claim 6, characterized in that: The bottom of the rotating member extends outward to form a bottom ring, and the top of the rotating member is equipped with a mounting ring.

9. A CNC machine tool according to claim 6, characterized in that: The outer ring of the rotating member is provided with an outer ring groove connected with the air nozzle, and the outer ring groove is evenly distributed with blowing holes along the circumference of its axis. The inner wall of the rotating member is equidistantly provided with inner ring grooves.

10. The CNC machine tool according to claim 1, wherein: A stepped hole is transversely opened at the left end of the tool holder, a sliding rod connected to the protective cover is slidably mounted in the stepped hole so as to move left and right, and an elastic member connecting the protective cover and the stepped hole is outer-mounted on the sliding rod.

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