Metal finish machining machine tool and using method thereof

Abstract

The invention provides a metal finish machining machine tool and a using method thereof, and belongs to the technical field of metal finish machining machine tools. The main shaft gear box is fixedly connected to the top of the machine body, a scrap iron groove is formed in the top of the machine body and corresponds to the main shaft gear box, a main shaft hole is formed in the side end of the main shaft gear box, and a clamping mechanism is arranged between the circumferential surfaces of the main shaft hole; the protective cover slides on the top of the machine body and corresponds to the spindle gear box and the scrap iron groove, the rotating disc drives the arc rod to deflect in a reciprocating mode, the arc rod drives the swing block to deflect in a reciprocating mode, the swing block drives the hollow rail and the cutter bar to deflect, the cutter bar drives the cutting knife to reciprocate in an arc mode, and the cutting knife conducts arc cutting on the spherical casting. The repeated arc feeding programming of the cutter is carried out on the surface of the ball casting, accurate cutting and polishing of the surface of the ball casting are accelerated, the machining time of a single ball casting is shortened, and the machining efficiency of a ball workpiece is effectively improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of metal finishing machine tools, and in particular relates to a metal finishing machine tool and a use method thereof. Background Art

[0002] Metal finishing machine tools are crucial equipment in the metalworking industry. Through precise operations, they impart the desired geometric shape, dimensional accuracy, and surface quality to blanks or workpieces. Metal finishing machine tools are specialized for precision machining of metals, ensuring extremely high dimensional accuracy and surface quality in the finished workpieces. They are widely used in a variety of industries, including aerospace, automotive manufacturing, engineering machinery, and mold manufacturing. For example, in the aerospace sector, metal finishing machine tools are used to produce high-precision, high-strength parts; in the automotive manufacturing sector, they are primarily used in the manufacture of key components such as engines, transmissions, and chassis.

[0003] The authorization publication number "CN116442020B" records "a casting metal finishing machine tool for grinding thinner disc-shaped castings. A casting metal finishing machine tool includes: a machining center, a spindle and a coolant pipe, etc.; the machining center is connected to the spindle; the machining center is connected to the coolant pipe. The present invention realizes the finishing of the outer ring surface of the casting, and adopts a limited grinding method to grind the casting to avoid the casting from being deformed by heat during grinding. Before grinding, pre-grinding is performed to make the surface of the casting smooth, and an extrusion method is used to extrude the locally deformed casting to make it flat, so that the casting can enter the first grinding disc and the second grinding disc to avoid being blocked during the grinding process, resulting in a decrease in grinding efficiency. Since deformation during the grinding process is avoided, there is no need to reduce the rotation speed during the grinding process, which improves the grinding efficiency. At the same time, the metal debris on the grinding disc is cleaned by brushing and magnetic suction, so that the surface of the polished casting is smooth."

[0004] The above patent realizes the finishing of the outer ring surface of the casting, and adopts the limited grinding method to grind the casting to avoid the deformation of the casting due to heat during grinding. Before grinding, pre-grinding is performed to make the surface of the casting smooth, and the extrusion method is used to squeeze the locally deformed casting to make it flat, so that the casting can enter the first grinding disc and the second grinding disc to avoid being blocked during the grinding process, resulting in a decrease in grinding efficiency. Since deformation is avoided during the grinding process, it is not necessary to reduce the speed during the grinding process, thereby improving the grinding efficiency. At the same time, the metal debris on the grinding sheet is cleaned by brushing and magnetic suction to make the surface of the polished casting smooth. However, in the process of processing the curved surface of the spherical casting, the commonly used metal processing machine tool adopts the step-by-step cutting method on the programmed cutting tool and then the arc-shaped cutting method to perform precise cutting and polishing on the surface of the spherical casting to increase the surface smoothness of the spherical workpiece. However, this processing method will cause the processing time of a single spherical casting to be extended, thereby reducing the processing efficiency of the spherical workpiece. For this reason, we propose a metal finishing machine tool and its use method. Summary of the Invention

[0005] The purpose of the present invention is to provide a metal finishing machine tool and a method for using the same, which aims to accelerate the precise cutting and polishing of the surface of the spherical casting by programming the repeated arc path of the cutting tool on the surface of the spherical casting, shorten the processing time of a single spherical casting, and effectively improve the processing efficiency of the spherical workpiece.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A metal finishing machine tool comprises a bed;

[0008] A spindle gearbox is fixedly connected to the top of the bed, a chip trough is provided on the top of the bed, the chip trough corresponds to the spindle gearbox, a spindle hole is provided on the side end of the spindle gearbox, and a clamping mechanism is provided between the circumferential surfaces of the spindle hole;

[0009] A protective cover, the protective cover slides on the top of the bed, the protective cover corresponds to the main shaft gear box and the iron chip chute, a cutting knife is provided between the inner walls of the protective cover, and the cutting knife corresponds to the clamping mechanism; and

[0010] The adjusting mechanism is arranged between the inner walls of the protective cover and is connected to the cutting knife to move the cutting knife.

[0011] As a preferred solution of the present invention, the adjustment mechanism includes a support assembly, a pushing assembly, a connecting rod assembly, a guide assembly and a telescopic assembly. The support assembly is arranged between the inner walls of the protective cover, the support assembly is connected to the spindle gear box, the telescopic assembly is arranged between the inner walls of the protective cover, the telescopic assembly is connected to the cutting knife, the guide assembly is arranged at the side end of the support assembly, the guide assembly is connected to the telescopic assembly, the connecting rod assembly is arranged at the side end of the support assembly, the connecting rod assembly is connected to the guide assembly, the pushing assembly is arranged at the side end of the support assembly, and the pushing assembly is connected to the connecting rod assembly.

[0012] As a preferred solution of the present invention, the support assembly includes a mounting frame, an arc plate and a rotating frame. The mounting frame is fixedly connected to the side end of the main shaft gear box by multiple bolts, the arc plate is fixedly connected to the side end of the mounting frame, and the rotating frame is fixedly connected to the side end of the mounting frame. The rotating frame is located on the lower side of the arc plate.

[0013] As a preferred solution of the present invention, the guide assembly includes a swing block, an arc groove and an arc block, the arc groove is opened through the top of the arc plate, the arc block slides between the inner walls of the arc groove, and the swing block is fixedly connected to the bottom of the arc block.

[0014] As a preferred solution of the present invention, the telescopic assembly includes an embedding groove, a hollow rail, a telescopic groove, a telescopic motor, a reciprocating screw, a knife rod, a knife groove and an infrared locator. The embedding groove is opened at the top of the arc block, and the hollow rail is fixedly connected to the inner walls of the embedding groove by bolts. The telescopic groove is opened at one end of the hollow rail, and the telescopic groove is communicated with the hollow rail. The telescopic motor is fixedly connected between the inner walls of the hollow rail, the reciprocating screw is rotatably connected between the inner walls of the hollow rail, one end of the reciprocating screw is fixedly connected to the output end of the telescopic motor, the knife rod is movably inserted between the inner walls of the telescopic groove, and one end of the knife rod is sleeved on the circumferential surface of the reciprocating screw rod, the knife groove is opened at the other end of the knife rod, and the knife groove corresponds to the cutting knife, the infrared locator is fixedly installed at one end of the knife rod, and the infrared emitting end of the infrared locator faces the telescopic motor.

[0015] As a preferred solution of the present invention, the pushing assembly includes a slide rail, a pushing motor, a first screw rod, a push-pull slider, a limit block and a limit slot, the slide rail is fixedly connected to the side end of the rotating frame, the pushing motor is fixedly connected to the side end of the slide rail, the first screw rod is rotatably connected between the inner walls of the slide rail, one end of the first screw rod extends to the side end of the slide rail, and the extended end of the first screw rod is fixedly connected to the output end of the pushing motor, the push-pull slider is sleeved on the circumferential surface of the first screw rod, and the push-pull slider slides between the inner walls of the slide rail, there are two limit slots, two of the limit slots are opened at the two side ends of the slide rail, the two limit slots are both connected to the inner wall of the slide rail, there are two limit blocks, the two limit blocks slide between the inner walls of the two limit slots, and the two limit blocks are connected to the push-pull slider.

[0016] As a preferred solution of the present invention, the connecting rod assembly includes a rotating disk, a deflection rod, a push-pull rod and an arc rod. The rotating disk is rotatably connected between the inner walls of the rotating frame, and both ends of the rotating disk extend to the upper and lower end surfaces of the rotating frame. The arc rod is fixedly connected to the top of the rotating disk, and the arc rod is fixedly connected to the swing block. The deflection rod is fixedly connected to the bottom of the rotating disk, the push-pull rod is rotatably connected to the bottom of the push-pull slider, and the other end of the push-pull rod is rotatably connected to the deflection rod through a hinge shaft.

[0017] As a preferred solution of the present invention, an arc-shaped baffle is fixedly connected between the arc plate and the rotating frame, and the arc-shaped baffle is located between the arc rod and the slide rail.

[0018] As a preferred solution of the present invention, the clamping mechanism includes a chuck, a clamping groove, an arc-shaped clamping block, a screw and a clamping slider, the chuck is rotatably connected between the inner walls of the main shaft hole, a plurality of the clamping grooves are provided, and the plurality of the clamping grooves are circumferentially distributed on the side ends of the chuck, a plurality of the screws are provided, and the plurality of the screws are rotatably connected between the inner walls of the clamping grooves, one end of the plurality of the screws extends to the circumferential surface of the chuck, a plurality of the clamping sliders are provided, and the plurality of the clamping sliders are respectively sleeved on the circumferential surfaces of the plurality of screws, a plurality of the arc-shaped clamping blocks are provided, and the plurality of the arc-shaped clamping blocks are spliced ​​in a circumferential distribution, the plurality of the arc-shaped clamping blocks are located on one side of the chuck, and the plurality of the arc-shaped clamping blocks are respectively connected to the plurality of clamping sliders.

[0019] A method for using a metal finishing machine tool comprises the following steps:

[0020] S1. Positioning and clamping:

[0021] The spherical casting is placed between the three arc-shaped clamping blocks, and the three screws are rotated in sequence with the hexagonal wrench. The three screws drive the three clamping sliders to move by sliding with the three clamping sliders, so that the three clamping sliders move in the three clamping slots. The three clamping sliders drive the three arc-shaped clamping blocks to clamp the spherical casting, so that the spherical casting is located concentrically with the chuck's axis, thereby achieving positioning and clamping of the spherical casting;

[0022] S2, cutting feed:

[0023] After the spherical casting is positioned and clamped, the motor in the main shaft gear box is powered on to drive the chuck to rotate, thereby rotating the spherical casting. The telescopic motor is then powered on, and the output end of the telescopic motor drives the reciprocating screw to rotate. The reciprocating screw pushes the cutter bar to move telescopically at one end of the hollow rail through sliding cooperation with the cutter bar. At the same time, the infrared locator emits an infrared laser in real time to detect the movement of the cutter bar and the feed amount of the cutting tool in real time, thereby pushing the cutting tool to cut the circumferential surface of the spherical casting, thereby realizing the cutting feed of the cutting tool.

[0024] S3, arc cutting:

[0025] After the cutting tool is fed, the push motor is powered on to start the pushing motor, and the output end of the pushing motor drives the first screw rod to rotate. The first screw rod pushes the push-pull slider to move back and forth between the inner wall of the slide rail through the sliding cooperation with the push-pull slider, and the push-pull slider drives the push-pull rod to move, and the push-pull rod pulls the deflection rod through the rotating shaft to deflect, and the deflection rod drives the rotating disk to deflect, and the rotating disk drives the arc rod to deflect, and the arc rod drives the swing block to deflect, and the swing block drives the arc block to move back and forth in the arc groove, and the arc block drives the hollow rail to deflect, and then drives the tool rod and the cutting tool to move in an arc on one side of the spindle gear box, so that the cutting tool moves in an arc on the circumferential surface of the spherical casting, thereby realizing arc cutting of the spherical casting;

[0026] S4, repeat the cutting:

[0027] The cutting tool is first fed for cutting, then the cutting tool is moved in an arc, and then the cutting tool is fed for cutting again, and the continuous alternation between the cutting feed and the arc is repeated for the cutting tool, thereby achieving repeated cutting of the spherical casting.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] 1. In this scheme, when the cutting tool is moving in an arc, the push-pull rod pushes and pulls the deflection rod through the hinge shaft to deflect back and forth, the deflection rod drives the rotating disk to deflect, the rotating disk drives the arc rod to deflect back and forth, the arc rod drives the swing block to deflect back and forth, the swing block drives the hollow rail and the tool rod to deflect, the tool rod drives the cutting tool to move back and forth in an arc, and the cutting tool performs arc cutting on the spherical casting. By programming the cutting tool to move in repeated arcs on the surface of the spherical casting, the precise cutting and polishing of the surface of the spherical casting is accelerated, the processing time of a single spherical casting is shortened, and the processing efficiency of the spherical workpiece is effectively improved.

[0030] 2. In this solution, when controlling the cutting feed of the cutting tool, the spherical casting is in high-speed rotation, the telescopic motor is powered on, and the output end of the telescopic motor drives the reciprocating screw to rotate. The reciprocating screw pushes the tool rod to move telescopically at one end of the hollow rail through sliding cooperation with the tool rod. At the same time, the infrared locator emits infrared laser in real time to detect the movement of the tool rod and the feed of the cutting tool in real time, and then pushes the cutting tool to cut the circumferential surface of the spherical casting, thereby achieving high-precision cutting feed of the cutting tool and facilitating the smooth polishing of the circumferential surface of the spherical casting by the metal finishing machine tool.

[0031] 3. In this solution, during the arc reciprocating movement of the cutting tool, the swing block drives the arc block to slide in the arc groove. The arc block guides the arc block back and forth through sliding cooperation with the arc groove, thereby ensuring that the cutting tool moves in a precise arc, effectively increasing the smoothness of the curved surface processing of the spherical casting, and improving the accuracy of the cutting processing of the metal finishing machine tool.

[0032] 4. In this solution, during the clamping process of the spherical casting, the spherical casting is placed between the three arc-shaped clamping blocks, and the three screws are rotated in sequence by the Allen wrench. The three screws drive the three clamping sliders to move by sliding with the three clamping sliders, so that the three clamping sliders move in the three clamping grooves. The three clamping sliders drive the three arc-shaped clamping blocks to clamp the spherical casting, so that the spherical casting is located concentrically with the axial direction of the chuck, thereby realizing rapid positioning and clamping of the spherical casting. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0034] Figure 1 This is a first perspective view of a metal finishing machine tool according to the present invention;

[0035] Figure 2 A half-section view of a metal finishing machine tool according to the present invention;

[0036] Figure 3This is a disassembly diagram of a metal finishing machine tool according to the present invention;

[0037] Figure 4 A half-section diagram of a clamping mechanism of a metal finishing machine tool according to the present invention;

[0038] Figure 5 This is a first perspective view of an adjustment mechanism of a metal finishing machine tool according to the present invention;

[0039] Figure 6 A second perspective view of an adjustment mechanism of a metal finishing machine tool according to the present invention;

[0040] Figure 7 A first half cross-sectional view of an adjustment mechanism of a metal finishing machine tool according to the present invention;

[0041] Figure 8 A second half cross-sectional view of an adjustment mechanism of a metal finishing machine tool according to the present invention;

[0042] Figure 9 This is an exploded view of an adjustment mechanism of a metal finishing machine tool according to the present invention;

[0043] Figure 10 This is an exploded view of a telescopic assembly of a metal finishing machine tool according to the present invention;

[0044] Figure 11 This is an exploded view of a pushing assembly and a connecting rod assembly of a metal finishing machine tool according to the present invention.

[0045] In the figure: 1. bed; 2. spindle gear box; 3. protective cover; 4. iron chip trough; 5. spindle hole; 6. chuck; 7. clamping slide; 8. arc clamping block; 9. screw; 10. clamping slide; 11. arc baffle; 12. mounting frame; 13. arc plate; 14. rotating frame; 15. rotating disk; 16. deflection rod; 17. push-pull rod; 18. slide rail; 19. push motor; 20. first screw rod; 21. push-pull slide; 22. limit block; 23. limit groove; 24. arc rod; 25. swing block; 26. arc groove; 27. arc block; 28. embedded groove; 29. ​​hollow rail; 30. telescopic groove; 31. telescopic motor; 32. reciprocating screw rod; 33. tool rod; 34. tool groove; 35. cutting knife; 36. infrared locator. DETAILED DESCRIPTION

[0046] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0047] Example 1

[0048] Reference Figure 1 - Figure 11 , a metal finishing machine tool, comprising:

[0049] Bed 1;

[0050] The spindle gear box 2 is fixedly connected to the top of the bed 1. The top of the bed 1 is provided with an iron chip trough 4, which corresponds to the spindle gear box 2. The side end of the spindle gear box 2 is provided with a spindle hole 5, and a clamping mechanism is provided between the circumferential surfaces of the spindle hole 5;

[0051] A protective cover 3 is slid on the top of the bed 1, the protective cover 3 corresponds to the spindle gear box 2 and the iron chip chute 4, and a cutting blade 35 is provided between the inner walls of the protective cover 3, and the cutting blade 35 corresponds to the clamping mechanism; and

[0052] The adjusting mechanism is arranged between the inner walls of the protective cover 3 , and the adjusting mechanism is connected to the cutting blade 35 to move the cutting blade 35 .

[0053] In the present invention, the bed 1 is used to support the spindle gear box 2 and the protective cover 3, the iron chip trough 4 is used to accommodate iron chips, the spindle hole 5 is used to accommodate the chuck 6, the clamping mechanism is used to clamp and fix the spherical casting, the protective cover 3 is used to shield the adjustment mechanism, the cutting knife 35 is used to cut the spherical casting, and the adjustment mechanism is connected to the cutting knife 35 to move the cutting knife 35.

[0054] The adjusting mechanism includes a supporting assembly, a pushing assembly, a connecting rod assembly, a guiding assembly and a telescopic assembly. The supporting assembly is arranged between the inner walls of the protective cover 3, the supporting assembly is connected to the spindle gear box 2, the telescopic assembly is arranged between the inner walls of the protective cover 3, the telescopic assembly is connected to the cutting blade 35, the guiding assembly is arranged at the side end of the supporting assembly, the guiding assembly is connected to the telescopic assembly, the connecting rod assembly is arranged at the side end of the supporting assembly, the connecting rod assembly is connected to the guiding assembly, the pushing assembly is arranged at the side end of the supporting assembly, and the pushing assembly is connected to the connecting rod assembly.

[0055] In the present invention, the support assembly is used to support the pushing assembly, the connecting rod assembly and the guiding assembly, the telescopic assembly is used to feed and move the cutting knife 35, the guiding assembly is used to guide the cutting knife 35 in an arc, the connecting rod assembly is used to deflect the cutting knife 35 in an arc, and the pushing assembly is used to provide power for the arc deflection of the cutting knife 35.

[0056] The supporting assembly includes a mounting frame 12, an arc plate 13 and a rotating frame 14. The mounting frame 12 is fixedly connected to the side end of the main shaft gearbox 2 by multiple bolts, the arc plate 13 is fixedly connected to the side end of the mounting frame 12, and the rotating frame 14 is fixedly connected to the side end of the mounting frame 12. The rotating frame 14 is located on the lower side of the arc plate 13.

[0057] In the present invention, the mounting frame 12 is used to be fixedly connected to the side end of the spindle gear box 2 by bolts, and the mounting frame 12 is axially concentric with the chuck 6. At the same time, the mounting frame 12 is used to support the fixed arc plate 13, the arc plate 13 is used to support the arc block 27, and the rotating frame 14 is used to accommodate the rotation and support of the rotating disk 15.

[0058] The guide assembly includes a swing block 25 , an arc groove 26 and an arc block 27 . The arc groove 26 is opened through the top of the arc plate 13 . The arc block 27 slides between the inner walls of the arc groove 26 . The swing block 25 is fixedly connected to the bottom of the arc block 27 .

[0059] In the present invention, the arc groove 26 is used to accommodate the sliding of the arc block 27. The arc block 27 guides the swing block 25 and the deflection range of the arc block 27 by sliding cooperation with the arc groove 26. The swing block 25 is used to drive the movement of the arc block 27. During the arc reciprocating movement of the cutting tool 35, the swing block 25 drives the arc block 27 to slide in the arc groove 26. The arc block 27 guides the arc block 27 reciprocatingly by sliding cooperation with the arc groove 26, thereby ensuring that the cutting tool 35 performs precise arc movement, effectively increasing the smoothness of the curved surface processing of the spherical casting, and improving the accuracy of the cutting processing of the metal finishing machine tool.

[0060] The telescopic assembly includes an embedding groove 28, a hollow rail 29, a telescopic groove 30, a telescopic motor 31, a reciprocating screw rod 32, a knife rod 33, a knife groove 34 and an infrared locator 36. The embedding groove 28 is opened at the top of the arc block 27. The hollow rail 29 is fixedly connected to the inner wall of the embedding groove 28 by bolts. The telescopic groove 30 is opened at one end of the hollow rail 29, and the telescopic groove 30 is connected to the hollow rail 29. The telescopic motor 31 is fixedly connected to the inner wall of the hollow rail 29. The reciprocating screw rod 32 is fixedly connected to the inner wall of the hollow rail 29. It is rotatably connected between the inner walls of the hollow rail 29, one end of the reciprocating screw rod 32 is fixedly connected to the output end of the telescopic motor 31, the knife rod 33 is movably inserted between the inner walls of the telescopic slot 30, and one end of the knife rod 33 is sleeved on the circumferential surface of the reciprocating screw rod 32, the knife groove 34 is opened at the other end of the knife rod 33, and the knife groove 34 corresponds to the cutting knife 35, the infrared locator 36 is fixedly installed on one end of the knife rod 33, and the infrared emitting end of the infrared locator 36 faces the telescopic motor 31.

[0061] In the present invention, the embedded groove 28 is used to accommodate the hollow rail 29, the telescopic groove 30 is used to accommodate the telescopic sliding of the cutter rod 33, the telescopic motor 31 is used to drive the reciprocating screw rod 32 to rotate, and the reciprocating screw rod 32 drives the cutter rod 33 to telescopically move in the telescopic groove 30 by sliding with the cutter rod 33. The cutter rod 33 is used to support the cutting knife 35, and the knife groove 34 is used to accommodate the cutting knife 35. The infrared locator 36 is used to emit an infrared laser to the inner wall of the hollow rail 29 to detect the horizontal position of the cutter rod 33 and the cutting knife 35 in real time, and then accurately control the spatial position of the cutting knife 35, and adjust the cutting progress between the cutting knife 35 and the spherical casting. Feed, when controlling the cutting feed of the cutting knife 35, the spherical casting is in high-speed rotation, the telescopic motor 31 is powered on, and the output end of the telescopic motor 31 drives the reciprocating screw 32 to rotate. The reciprocating screw 32 pushes the cutter rod 33 to move telescopically at one end of the hollow rail 29 through sliding cooperation with the cutter rod 33. At the same time, the infrared locator 36 emits an infrared laser in real time to detect the movement of the cutter rod 33 and the feed amount of the cutting knife 35 in real time, and then pushes the cutting knife 35 to cut the circumferential surface of the spherical casting, thereby realizing high-precision cutting feed of the cutting knife 35, and facilitating the smooth polishing of the circumferential surface of the spherical casting by the metal finishing machine tool.

[0062] The pushing assembly includes a slide rail 18, a pushing motor 19, a first screw rod 20, a push-pull slider 21, a limit block 22 and a limit slot 23. The slide rail 18 is fixedly connected to the side end of the rotating frame 14, and the pushing motor 19 is fixedly connected to the side end of the slide rail 18. The first screw rod 20 is rotatably connected between the inner walls of the slide rail 18. One end of the first screw rod 20 extends to the side end of the slide rail 18, and the extended end of the first screw rod 20 is fixedly connected to the output end of the pushing motor 19. The push-pull slider 21 is sleeved on the circumferential surface of the first screw rod 20, and the push-pull slider 21 slides between the inner walls of the slide rail 18. There are two limit slots 23, which are opened at the two side ends of the slide rail 18. The two limit slots 23 are both connected to the inner wall of the slide rail 18. There are two limit blocks 22, which slide between the inner walls of the two limit slots 23. The two limit blocks 22 are both connected to the push-pull slider 21.

[0063] The first screw rod 20 is pushed to move back and forth between the inner walls of the slide rail 18 by the sliding cooperation with the push-pull slide block 21, and the push-pull slide block 21 drives the push-pull rod 17 to move back and forth. The two limit grooves 23 are used to accommodate the sliding of the two limit blocks 22. The two limit blocks 22 guide the movement of the push-pull slide block 21 by sliding cooperation with the two limit grooves 23. When the cutting knife 35 is cut in an arc, the pushing motor 19 is powered on and started. The output end of the pushing motor 19 drives the first screw rod 20 to rotate. The first screw rod 20 pushes the push-pull slide block 21 to move back and forth between the inner walls of the slide rail 18 by sliding cooperation with the push-pull slide block 21. The push-pull slide block 21 drives the push-pull rod 17 to move, thereby providing power for the reciprocating deflection of the cutting knife 35.

[0064] The connecting rod assembly includes a rotating disk 15, a deflection rod 16, a push-pull rod 17 and an arc rod 24. The rotating disk 15 is rotatably connected between the inner walls of the rotating frame 14, and both ends of the rotating disk 15 extend to the upper and lower end surfaces of the rotating frame 14. The arc rod 24 is fixedly connected to the top of the rotating disk 15, and the arc rod 24 is fixedly connected to the swing block 25. The deflection rod 16 is fixedly connected to the bottom of the rotating disk 15. The push-pull rod 17 is rotatably connected to the bottom of the push-pull slider 21. The other end of the push-pull rod 17 is rotatably connected to the deflection rod 16 through a hinge shaft.

[0065] In the present invention, the rotating disk 15 is used to drive the arc rod 24 to deflect, the arc rod 24 is used to drive the swing block 25 to deflect, the deflection rod 16 is used to drive the rotating disk 15 to deflect, and the push-pull rod 17 is used to push and pull the deflection rod 16 to deflect. When the cutting tool 35 is cutting in an arc, the push-pull rod 17 pushes and pulls the deflection rod 16 through the hinge shaft to deflect back and forth, and the deflection rod 16 drives the rotating disk 15 to deflect, and the rotating disk 15 drives the arc rod 24 to deflect back and forth, and the arc rod 24 drives the swing block 25 to deflect back and forth, and the swing block 25 drives the hollow rail 29 and the tool rod 33 to deflect, and the tool rod 33 drives the cutting tool 35 to reciprocate in an arc, and the cutting tool 35 performs arc cutting on the spherical casting. By programming the repeated arc cutting of the cutting tool on the surface of the spherical casting, the precise cutting and polishing of the surface of the spherical casting is accelerated, the processing time of a single spherical casting is shortened, and the processing efficiency of the spherical workpiece is effectively improved.

[0066] An arc-shaped baffle 11 is fixedly connected between the arc plate 13 and the rotating frame 14 , and the arc-shaped baffle 11 is located between the arc rod 24 and the slide rail 18 .

[0067] In the present invention, the arc-shaped baffle 11 is used to block the iron chips generated during the cutting process of the spherical casting, to prevent the iron chips from splashing into the pushing component, and to avoid the first screw rod 20 and the push-pull slider 21 from getting stuck.

[0068] The clamping mechanism includes a chuck 6, a clamping slot 7, an arc-shaped clamping block 8, a screw 9 and a clamping slider 10. The chuck 6 is rotatably connected between the inner walls of the spindle hole 5. There are multiple clamping slots 7, and multiple clamping slots 7 are circumferentially distributed on the side ends of the chuck 6. There are multiple screws 9, and multiple screws 9 are rotatably connected between the inner walls of the clamping slots 7. One end of multiple screws 9 extends to the circumferential surface of the chuck 6. There are multiple clamping sliders 10, and multiple clamping sliders 10 are respectively sleeved on the circumferential surfaces of multiple screws 9. There are multiple arc-shaped clamping blocks 8, and multiple arc-shaped clamping blocks 8 are spliced ​​in a circumferential distribution. Multiple arc-shaped clamping blocks 8 are located on one side of the chuck 6, and multiple arc-shaped clamping blocks 8 are respectively connected to multiple clamping sliders 10.

[0069] The three clamping slides 10 drive the three arc-shaped clamping blocks 8 to clamp the spherical casting, so that the spherical casting is located concentrically on the axial direction of the chuck 6, thereby realizing rapid positioning and clamping of the spherical casting.

[0070] A method for using a metal finishing machine tool comprises the following steps:

[0071] S1. Positioning and clamping:

[0072] The spherical casting is placed between the three arc-shaped clamping blocks 8. The three screws 9 are rotated in sequence with an inner hexagonal wrench. The three screws 9 drive the three clamping sliders 10 to move by sliding with the three clamping sliders 10, so that the three clamping sliders 10 move in the three clamping grooves 7. The three clamping sliders 10 drive the three arc-shaped clamping blocks 8 to clamp the spherical casting, so that the spherical casting is located concentrically with the axial direction of the chuck 6, thereby achieving the positioning and clamping of the spherical casting;

[0073] S2, cutting feed:

[0074] After the spherical casting is positioned and clamped, the motor in the main shaft gear box 2 is powered on to drive the chuck 6 to rotate, thereby causing the spherical casting to rotate. The telescopic motor 31 is then powered on to start the telescopic motor 31. The output end of the telescopic motor 31 drives the reciprocating screw 32 to rotate. The reciprocating screw 32 pushes the cutter bar 33 to move telescopically at one end of the hollow rail 29 through sliding cooperation with the cutter bar 33. At the same time, the infrared locator 36 emits an infrared laser in real time to detect the movement of the cutter bar 33 and the feed amount of the cutting knife 35. Then, the cutting knife 35 is pushed to cut the circumferential surface of the spherical casting, thereby realizing the cutting feed of the cutting knife 35.

[0075] S3, arc cutting:

[0076] After the cutting blade 35 is cut and fed, the push motor 19 is powered on to start the pushing motor 19. The output end of the pushing motor 19 drives the first screw rod 20 to rotate. The first screw rod 20 pushes the push-pull slider 21 to move back and forth between the inner walls of the slide rail 18 through the sliding cooperation with the push-pull slider 21. The push-pull slider 21 drives the push-pull rod 17 to move. The push-pull rod 17 pulls the deflection rod 16 through the rotating shaft to deflect. The deflection rod 16 drives the rotating disk 15 to deflect. The rotating disk 15 drives the arc rod 24 to deflect. The arc rod 24 drives the swing block 25 to deflect. The swing block 25 drives the arc block 27 to move back and forth in the arc groove 26. The arc block 27 drives the hollow rail 29 to deflect, and then drives the tool rod 33 and the cutting blade 35 to move in an arc on one side of the spindle gear box 2, so that the cutting blade 35 moves in an arc on the circumferential surface of the spherical casting, thereby realizing arc cutting of the spherical casting.

[0077] S4, repeat the cutting:

[0078] The cutting tool 35 is first fed for cutting, then the cutting tool 35 is cut in an arc, and then the cutting tool 35 is fed for cutting again, and the cutting tool 35 is repeatedly alternated between the cutting feed and the arc, thereby achieving repeated cutting of the spherical casting.

[0079] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A metal finishing machine tool, characterized in that: include; Bed (1); A spindle gear box (2), the spindle gear box (2) is fixedly connected to the top of the bed (1), the top of the bed (1) is provided with an iron chip trough (4), the iron chip trough (4) corresponds to the spindle gear box (2), a spindle hole (5) is provided at the side end of the spindle gear box (2), and a clamping mechanism is provided between the circumferential surfaces of the spindle hole (5); A protective cover (3), the protective cover (3) slides on the top of the bed (1), the protective cover (3) corresponds to the main shaft gear box (2) and the iron chip trough (4), a cutting knife (35) is provided between the inner walls of the protective cover (3), and the cutting knife (35) corresponds to the clamping mechanism; and An adjusting mechanism is provided between the inner walls of the protective cover (3), and the adjusting mechanism is connected to the cutting blade (35) for moving the cutting blade (35).

2. A metal finishing machine tool according to claim 1, characterized in that: The adjustment mechanism includes a support assembly, a pushing assembly, a connecting rod assembly, a guide assembly and a telescopic assembly, wherein the support assembly is arranged between the inner walls of the protective cover (3), the support assembly is connected to the main shaft gear box (2), the telescopic assembly is arranged between the inner walls of the protective cover (3), the telescopic assembly is connected to the cutting blade (35), the guide assembly is arranged at the side end of the support assembly, the guide assembly is connected to the telescopic assembly, the connecting rod assembly is arranged at the side end of the support assembly, the connecting rod assembly is connected to the guide assembly, the pushing assembly is arranged at the side end of the support assembly, and the pushing assembly is connected to the connecting rod assembly.

3. A metal finishing machine tool according to claim 2, characterized in that: The support assembly comprises a mounting frame (12), an arc plate (13) and a rotating frame (14); the mounting frame (12) is fixedly connected to the side end of the main shaft gear box (2) by a plurality of bolts; the arc plate (13) is fixedly connected to the side end of the mounting frame (12); the rotating frame (14) is fixedly connected to the side end of the mounting frame (12); and the rotating frame (14) is located on the lower side of the arc plate (13).

4. A metal finishing machine tool according to claim 3, characterized in that: The guide assembly comprises a swing block (25), an arc groove (26) and an arc block (27); the arc groove (26) is opened through the top of the arc plate (13); the arc block (27) slides between the inner walls of the arc groove (26); and the swing block (25) is fixedly connected to the bottom of the arc block (27).

5. A metal finishing machine tool according to claim 4, characterized in that: The telescopic assembly comprises an embedding groove (28), a hollow rail (29), a telescopic groove (30), a telescopic motor (31), a reciprocating screw rod (32), a knife rod (33), a knife groove (34) and an infrared locator (36), wherein the embedding groove (28) is provided at the top of the arc block (27), the hollow rail (29) is fixedly connected to the inner wall of the embedding groove (28) by bolts, the telescopic groove (30) is provided at one end of the hollow rail (29), and the telescopic groove (30) is communicated with the hollow rail (29), the telescopic motor (31) is fixedly connected to the inner wall of the hollow rail (29), the reciprocating screw rod (32) is rotatably connected between the inner walls of the hollow rail (29), one end of the reciprocating screw rod (32) is fixedly connected to the output end of the telescopic motor (31), the knife rod (33) is movably inserted between the inner walls of the telescopic slot (30), and one end of the knife rod (33) is sleeved on the circumferential surface of the reciprocating screw rod (32), the knife groove (34) is opened at the other end of the knife rod (33), and the knife groove (34) corresponds to the cutting knife (35), the infrared locator (36) is fixedly installed on one end of the knife rod (33), and the infrared emitting end of the infrared locator (36) faces the telescopic motor (31).

6. A metal finishing machine tool according to claim 5, characterized in that: The pushing assembly includes a slide rail (18), a pushing motor (19), a first screw rod (20), a push-pull slider (21), a limit block (22) and a limit slot (23), wherein the slide rail (18) is fixedly connected to the side end of the rotating frame (14), the pushing motor (19) is fixedly connected to the side end of the slide rail (18), the first screw rod (20) is rotatably connected between the inner walls of the slide rail (18), one end of the first screw rod (20) extends to the side end of the slide rail (18), and the extended end of the first screw rod (20) is fixedly connected to the output end of the pushing motor (19). The push-pull slider (21) is sleeved on the circumferential surface of the first screw rod (20), and the push-pull slider (21) slides between the inner walls of the slide rail (18). Two limiting grooves (23) are provided. The two limiting grooves (23) are opened at the two side ends of the slide rail (18). The two limiting grooves (23) are both connected to the inner wall of the slide rail (18). Two limiting blocks (22) are provided. The two limiting blocks (22) slide between the inner walls of the two limiting grooves (23). The two limiting blocks (22) are both connected to the push-pull slider (21).

7. A metal finishing machine tool according to claim 6, characterized in that: The connecting rod assembly includes a rotating disk (15), a deflection rod (16), a push-pull rod (17) and an arc rod (24); the rotating disk (15) is rotatably connected between the inner walls of the rotating frame (14), and both ends of the rotating disk (15) extend to the upper and lower end surfaces of the rotating frame (14); the arc rod (24) is fixedly connected to the top of the rotating disk (15), and the arc rod (24) is fixedly connected to the swing block (25); the deflection rod (16) is fixedly connected to the bottom of the rotating disk (15); the push-pull rod (17) is rotatably connected to the bottom of the push-pull slider (21); and the other end of the push-pull rod (17) is rotatably connected to the deflection rod (16) through a hinge shaft.

8. A metal finishing machine tool according to claim 7, characterized in that: An arc-shaped baffle (11) is fixedly connected between the arc plate (13) and the rotating frame (14), and the arc-shaped baffle (11) is located between the arc rod (24) and the slide rail (18).

9. The metal finishing machine tool according to claim 8, characterized in that: The clamping mechanism includes a chuck (6), a clamping slot (7), an arc-shaped clamping block (8), a screw (9) and a clamping slider (10), wherein the chuck (6) is rotatably connected between the inner walls of the spindle hole (5), a plurality of the clamping slots (7) are provided, and the plurality of the clamping slots (7) are circumferentially distributed on the side ends of the chuck (6), a plurality of the screws (9) are provided, and the plurality of the screws (9) are rotatably connected between the inner walls of the clamping slots (7), and the plurality of the One end of the screw rod (9) extends to the circumferential surface of the chuck (6), and a plurality of clamping sliders (10) are provided, and the plurality of clamping sliders (10) are respectively sleeved on the circumferential surfaces of the plurality of screw rods (9). A plurality of arc-shaped clamping blocks (8) are provided, and the plurality of arc-shaped clamping blocks (8) are spliced ​​in a circumferential distribution, and the plurality of arc-shaped clamping blocks (8) are located on one side of the chuck (6), and the plurality of arc-shaped clamping blocks (8) are respectively connected to the plurality of clamping sliders (10).

10. A method for using a metal finishing machine tool, characterized in that: A metal finishing machine tool according to claim 9 is used, comprising the following steps: S1. Positioning and clamping: The spherical casting is placed between the three arc-shaped clamping blocks (8), and the three screw rods (9) are rotated in sequence by an inner hexagonal wrench. The three screw rods (9) drive the three clamping sliders (10) to move by sliding with the three clamping sliders (10), so that the three clamping sliders (10) move in the three clamping slots (7). The three clamping sliders (10) drive the three arc-shaped clamping blocks (8) to clamp the spherical casting, so that the spherical casting is located concentrically with the axial direction of the clamping disc (6), thereby realizing the positioning and clamping of the spherical casting; S2, cutting feed: After the spherical casting is positioned and clamped, the motor in the main shaft gear box (2) is powered on to drive the chuck (6) to rotate, thereby causing the spherical casting to rotate. The telescopic motor (31) is then powered on to start the telescopic motor (31). The output end of the telescopic motor (31) drives the reciprocating screw (32) to rotate. The reciprocating screw (32) pushes the cutter rod (33) to move telescopically at one end of the hollow rail (29) through sliding cooperation with the cutter rod (33). At the same time, the infrared locator (36) emits infrared laser in real time to detect the movement amount of the cutter rod (33), and the feed amount of the cutting knife (35) is detected in real time. Then, the cutting knife (35) is pushed to cut the circumferential surface of the spherical casting, thereby realizing the cutting feed of the cutting knife (35). S3, arc cutting: After the cutting blade (35) is cut and fed, the push motor (19) is powered on to start the push motor (19). The output end of the push motor (19) drives the first screw rod (20) to rotate. The first screw rod (20) pushes the push-pull slider (21) to move back and forth between the inner wall of the slide rail (18) through the sliding cooperation with the push-pull slider (21). The push-pull slider (21) drives the push-pull rod (17) to move. The push-pull rod (17) pulls the deflection rod (16) through the rotating shaft to deflect. The deflection rod (16) drives the rotating disk (15) to rotate. Deflection, the rotating disk (15) drives the arc rod (24) to deflect, the arc rod (24) drives the swing block (25) to deflect, the swing block (25) drives the arc block (27) to move back and forth in an arc in the arc groove (26), the arc block (27) drives the hollow rail (29) to deflect, and then drives the tool rod (33) and the cutting tool (35) to move in an arc on one side of the main shaft gear box (2), so that the cutting tool (35) moves in an arc on the circumferential surface of the spherical casting, thereby realizing arc cutting of the spherical casting; S4, repeat the cutting: The cutting tool (35) is firstly fed for cutting, then the cutting tool (35) is cut in an arc, and then the cutting tool (35) is fed for cutting again, and the cutting tool (35) is repeatedly fed for cutting and cut in an arc, thereby achieving repeated cutting of the spherical casting.

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