Screw shaft grinding machine tool and machining method thereof

Abstract

The invention relates to the technical field of cylindrical grinding machines, and discloses a spiral shaft grinding machine tool and a machining method thereof.A sliding table and a grinding mechanism are arranged on a machine table, a fixing mechanism is arranged on the sliding table, and a locking piece, a baffle, an overturning assembly and an outer hydraulic cylinder are further arranged on the machine table; a rack structure is arranged at the telescopic end of the outer hydraulic cylinder, a gear ring distributed in an arc shape is arranged on the overturning assembly, the cleaning mechanism comprises a cleaning assembly and a reversing assembly, the cleaning assembly is used for cleaning the surface of the metal shaft, and the reversing assembly is used for pushing the cleaning assembly to the ground metal shaft. According to the metal shaft cleaning device, the ground metal shaft can be conveniently cleaned, meanwhile, oil stains, grease, chippings, dust and the like on the metal shaft can be more fully removed, the subsequent laser welding quality is greatly improved, and the effect that the metal shafts with different diameters can be cleaned can be achieved.

Description

Technical Field

[0001] The invention relates to the technical field of cylindrical grinding machines, in particular to a spiral shaft grinding machine tool and a processing method thereof. Background Art

[0002] External cylindrical grinding machines are used to process the outer surfaces of cylindrical, conical or other shapes and the end faces of shaft shoulders. They are the most widely used and can process various cylindrical and conical outer surfaces and shaft shoulder end faces. Generally, they consist of a cast iron bed as the base, a worktable, a headstock and tailstock that support and drive the workpiece to rotate, a grinding wheel frame (grinding head) for mounting the grinding wheel, and a transverse feed mechanism that controls the size of the workpiece. The spiral rod refers to a metal shaft with spiral leaves on the shaft. When processing such a metal shaft, the metal shaft is first ground to the appropriate diameter size by the external cylindrical grinder, and then the spiral leaves are welded to the ground metal shaft by laser welding. When existing external cylindrical grinders grind metal shafts with grinding wheels, most of them adopt the method of spraying grinding fluid while grinding to cool the grinding wheel and metal shaft, and the sprayed grinding fluid can also clean the debris generated during the grinding process. However, in actual processing, due to the residual grinding fluid on the surface of the metal shaft, these grinding fluids adhere to the surface of the metal shaft, causing some debris to be "stuck" to the metal shaft, which results in the user needing to manually clean the surface of the metal shaft before subsequent laser welding. This method greatly reduces the efficiency of batch processing, and due to the presence of grease-like substances in the existing grinding fluid, these grease-like substances are easily attached to the metal shaft. These grease-like substances will cause the gas generated by the thermal decomposition of the grease to easily form closed bubbles in the molten pool during subsequent laser welding, forming pores after cooling, thereby reducing the fatigue strength of the weld. Summary of the Invention

[0003] In view of the deficiencies in the prior art, the present invention provides a spiral shaft grinding machine tool and a processing method thereof, which solve the above-mentioned problems.

[0004] To solve the above technical problems, the present invention provides the following technical solutions: A spiral shaft grinding machine tool includes a machine platform, a slide and a grinding mechanism are provided on the machine platform, a fixing mechanism is provided on the slide, the fixing mechanism is used to fix the metal shaft, and during grinding, the fixing mechanism can drive the metal shaft to rotate, and the grinding mechanism is used to grind the metal shaft. The machine platform is also provided with a locking member, a baffle, a flip assembly, an external hydraulic cylinder and a cleaning mechanism, and a rack structure is provided on the telescopic end of the external hydraulic cylinder; The flip assembly is provided with a gear ring with an arc distribution, and the flip assembly is used to drive the baffle to flip; The cleaning mechanism includes a cleaning component and a reversing component, wherein the cleaning component is used to clean the surface of the metal shaft, and the reversing component is used to push the cleaning component toward the ground metal shaft; The outer hydraulic cylinder is provided with an engagement stroke and a disengagement stroke in sequence on the extension stroke; During the meshing stroke stage, the rack structure can mesh with the ring gear, and the baffle is flipped and rotated due to the rotation of the flip assembly until the inner side surface of the baffle rotates to a protective position for protecting the fixing mechanism. At this time, the locking member locks the baffle; During the separation stroke stage, the rack structure is not engaged with the ring gear and the baffle is always locked. When the external hydraulic cylinder moves to contact the reversing assembly, the reversing assembly can push the cleaning assembly to move toward the metal shaft in a force-accumulating manner, so that the vertical line segment between the position of the cleaning assembly and the metal shaft becomes shorter.

[0005] Preferably, the flip assembly includes a semicircular gear ring, a rack and a C-shaped card plate, the outer side of the semicircular gear ring is fixedly connected to a connecting square rod, the connecting square rod is fixedly connected to the baffle, and the connecting square rods are distributed on both sides of the baffle, the inner side of the connecting square rod is hinged with a fixed shaft, the fixed shaft is fixedly connected to the machine platform, and when the rack moves, it can drive the semicircular gear ring to rotate.

[0006] Preferably, the rack is fixedly connected to the C-shaped card plate, and the end of the C-shaped card plate away from the rack is fixedly connected to a connecting rod. An inner groove is provided on the connecting square rod on the left side. When the C-shaped card plate moves, the C-shaped card plate can be inserted into the inner groove. The locking part includes an arc slot and a round-headed insertion rod. The arc slot is provided on the connecting square rod on the right side. The round-headed insertion rod is fixedly connected to the machine platform. After the baffle is flipped over, the round-headed insertion rod can be inserted into the arc slot.

[0007] Preferably, a support rod is attached to the bottom surface of the baffle, a support plate is fixedly connected to the bottom of the support rod, the support plate is fixedly connected to the machine platform, and transparent glass is provided on the baffle, and the transparent glass is tempered glass.

[0008] Preferably, a mounting plate is fixedly connected to the outer side of the outer hydraulic cylinder, the mounting plate is fixedly connected to the machine platform, and the output shaft of the outer hydraulic cylinder passes through the mounting plate and extends out of the mounting plate.

[0009] Preferably, the reversing assembly includes a push plate and a bent pipe, the push plate is fixedly connected to the output shaft of the outer hydraulic cylinder, the push plate is fixedly connected to the connecting rod on the side away from the outer hydraulic cylinder, the bent pipe is installed on the machine through a clamp, the inner side of the bent pipe is slidingly connected to a push rod, the outer end of the push rod is fixedly connected to a pressure plate, the pressure plate is fixedly connected to a return spring, the end of the return spring away from the pressure plate is fixedly connected to the bent pipe, the end of the bent pipe away from the pressure plate is fixedly connected to a connecting pipe, the end of the connecting pipe away from the bent pipe is fixedly connected to a vertical pipe, and the bent pipe, connecting pipe and vertical pipe are connected.

[0010] Preferably, the inner side of the vertical tube is slidably connected to a sliding rod, the sliding rod passes through the vertical tube and is fixedly connected to a mounting seat, the mounting seat is fixedly connected to a limiting rod, the limiting rods are distributed on both sides of the mounting seat, the outer side of the limiting rod is slidably connected to a bracket, the limiting rod is fixedly connected to a connecting spring, and the connecting spring is fixedly connected to the bracket at one end away from the limiting rod.

[0011] Preferably, the cleaning component includes a nitrogen nozzle and a laser pulse head, both of which are mounted on the mounting base, and the laser pulse head is externally connected to a laser device, and the nitrogen nozzle is externally connected to a nitrogen bottle with an electric valve through a connecting tube, and the connecting tube is connected to the electric valve.

[0012] Preferably, the bottom of the bracket is slidably connected to an outer slide rail, and the outer slide rail is provided with a plurality of horizontal arrays of adjusting screw holes, and the screw holes are threadedly connected to adjusting bolts, and the adjusting bolts pass through the bracket and are threadedly connected to the screw holes. An internal hydraulic cylinder is provided on the machine platform, and the internal hydraulic cylinder is used to drive the slide to move. The fixing mechanism includes a three-jaw chuck, a tailstock and an inner slide rail, and the inner slide rail is installed on the slide, and the three-jaw chuck and the tailstock are installed in the inner slide rail. The grinding mechanism includes an adjusting platform and a grinding wheel nozzle, and the adjusting platform is fixedly connected to the machine platform, and the grinding wheel is slidably connected to the adjusting platform. A driving mechanism is provided on the outside of the three-jaw chuck and the grinding wheel, and the nozzle is installed on the grinding wheel. The nozzle is used to spray grinding fluid.

[0013] A spiral shaft grinding method comprises the following steps: S1. Fix the metal shaft through the fixing mechanism and adjust the position of the grinding wheel through the adjustment table; S2, the external hydraulic cylinder drives the turning assembly to operate, and the turning assembly drives the baffle to turn over; S3, grinding the metal shaft through the cooperation of the internal hydraulic cylinder, the slide and the grinding wheel until the metal shaft is ground to a specified diameter; S4. The reversing component is driven to operate by the operation of the external hydraulic cylinder. The operation of the reversing component pushes the cleaning component toward the metal shaft, and then the surface of the metal shaft is cleaned by the cleaning component.

[0014] Compared with the prior art, the present invention provides a spiral shaft grinding machine tool and a processing method thereof, which have the following beneficial effects: 1. The present invention, when it is necessary to clean the ground metal shaft, the external hydraulic cylinder is switched to the separation stroke, and the hydraulic cylinder moves toward the reversing assembly. After the telescopic shaft of the hydraulic cylinder contacts the reversing assembly, the reversing assembly operates, and the reversing assembly operates to push the cleaning assembly toward the ground metal shaft, and then drives the metal shaft to move through the slide. When the metal shaft passes the position of the cleaning assembly, the cleaning assembly cleans the surface of the metal shaft, thereby removing the oil, grease, debris and dust remaining on the metal shaft, thereby achieving the purpose of facilitating the cleaning of the ground metal shaft and more fully removing the oil, grease, debris and dust on the metal shaft, thereby greatly improving the quality of subsequent laser welding, and by controlling the moving stroke of the telescopic shaft on the external hydraulic cylinder, the pushing stroke of the reversing assembly can also be adjusted, thereby facilitating the cleaning effect of metal shafts of different diameters, thereby greatly improving the range that can be cleaned.

[0015] 2. In the present invention, before grinding, the external hydraulic cylinder is adjusted to the meshing stroke state. At this time, the rack structure on the telescopic shaft of the hydraulic cylinder is meshed with the ring gear structure on the flip assembly. Then, as the external hydraulic cylinder operates, the ring gear structure drives the flip assembly to operate, and the operation of the flip assembly drives the baffle to flip. The flipped baffle can be closed in the direction toward the user, thereby avoiding the splashing of debris or grinding fluid during the process of the grinding mechanism grinding the metal shaft, which affects the operator. When not in use, the baffle is in a horizontal state, and the baffle can also be used as a placement table, further improving practicality.

[0016] 3. In the present invention, after the flip assembly drives the baffle to flip and close the slide, the C-shaped card plate will move toward the inner groove on the connecting square rod as the rack moves, and then be inserted into the inner groove on the connecting square rod. At the same time, the round-headed insertion rod can be inserted into the arc slot. At this time, the C-shaped card plate and the round-headed insertion rod can lock the baffle to prevent it from rotating. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the first viewing angle of the present invention; Figure 2 for Figure 1 Enlarged schematic diagram of the structure at point A in the middle Figure 3 A second perspective schematic diagram of the present invention; Figure 4 This is a schematic structural diagram of the present invention from a third viewing angle; Figure 5 This is a schematic diagram of the structure from a fourth viewing angle of the present invention; Figure 6 is a schematic diagram of a fifth viewing angle of the present invention; Figure 7 is a sixth viewing angle schematic diagram of the present invention; Figure 8 for Figure 7 A magnified schematic diagram of the structure at point B in the middle; Figure 9 A schematic diagram of the cleaning mechanism of the present invention; Figure 10 for Figure 9 A magnified schematic diagram of the structure at point C in the middle; Figure 11 It is an overall schematic diagram of the cleaning mechanism of the present invention; Figure 12 Based Figure 11 Enlarged schematic diagram of the structure at point D in the middle.

[0018] In the figure: 1. Machine table; 2. Slide; 3. Grinding mechanism; 31. Adjusting table; 32. Grinding wheel; 33. Nozzle; 4. Fixing mechanism; 41. Three-jaw chuck; 42. Tailstock; 43. Inner slide rail; 51. Baffle; 511. Support rod; 512. Support plate; 513. Transparent glass; 52. Rack; 521. C-shaped pallet; 522. Connecting rod; 523. Inner groove; 524. Arc slot; 525. Round head insert rod; 53. Turning assembly; 531. Semicircular gear ring; 532. Connecting square rod; 5 33. Fixed shaft; 6. Cleaning mechanism; 61. Nitrogen nozzle; 62. Laser pulse head; 63. Push plate; 64. Reversing assembly; 641. Bend pipe; 642. Push rod; 643. Pressure plate; 644. Return spring; 645. Connecting pipe; 646. Vertical pipe; 647. Slide rod; 648. Mounting seat; 649. Limit rod; 6410. Bracket; 6411. Connecting spring; 6412. External slide rail; 6413. Screw hole; 6414. Adjusting bolt; 7. External hydraulic cylinder; 71. Mounting plate. DETAILED DESCRIPTION

[0019] 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.

[0020] As introduced in the background technology, there are deficiencies in the existing technology. In order to solve the above technical problems, this application proposes a spiral shaft grinding machine tool and a processing method thereof.

[0021] Example 1: Please refer to Figures 1-12 A spiral shaft grinding machine includes a machine platform 1, a slide 2 and a grinding mechanism 3 are provided on the machine platform 1, a fixing mechanism 4 is provided on the slide 2, and the fixing mechanism 4 is used to fix the metal shaft. During grinding, the fixing mechanism 4 can drive the metal shaft to rotate, and the grinding mechanism 3 is used to grind the metal shaft. The machine platform 1 is also provided with a locking member, a baffle 51, a flip assembly 53, an external hydraulic cylinder 7 and a cleaning mechanism 6. A rack 52 structure is provided on the telescopic end of the external hydraulic cylinder 7; The flip assembly 53 is provided with a gear ring with an arc distribution, and the flip assembly 53 is used to drive the baffle 51 to flip; The cleaning mechanism 6 includes a cleaning component and a reversing component 64. The cleaning component is used to clean the surface of the metal shaft, and the reversing component 64 is used to push the cleaning component toward the ground metal shaft. The extension stroke of the outer hydraulic cylinder 7 is sequentially provided with an engagement stroke and a disengagement stroke; During the meshing stroke, the rack 52 is meshed with the ring gear, and the baffle 51 is turned due to the rotation of the turning assembly 53 until the inner side of the baffle 51 rotates to the protective position for protecting the fixing mechanism 4. At this time, the locking member locks the baffle 51. During the separation stroke stage, the rack 52 structure is not engaged with the ring gear and the baffle 51 is always locked. When the external hydraulic cylinder 7 moves to contact the reversing component 64, the reversing component 64 can push the cleaning component to move toward the metal shaft in a force-accumulating manner, so that the vertical line segment between the position of the cleaning component and the metal shaft becomes shorter.

[0022] In the initial state, the baffle 51 is in a horizontal state. At this time, the user can use the horizontal baffle 51 as a placement table. When grinding is required, the metal shaft is fixed by the fixing mechanism 4, and then the external hydraulic cylinder 7 is switched to the meshing stroke state. At this time, the rack 52 structure on the external hydraulic cylinder 7 drives the gear ring structure on the flip assembly 53 to flip. At this time, the flip assembly 53 operates to drive the baffle 51 to flip until the inner side surface of the baffle 51 is rotated to the protective position for protecting the fixing mechanism 4. The flipped baffle 51 can close the slide 2, and then the metal shaft is driven to rotate through the fixing mechanism 4. Then, the metal shaft is ground through the cooperation of the slide 2 and the grinding mechanism 3. After the grinding is completed, the external hydraulic cylinder 7 is switched to the separation stroke state. At this time, the telescopic shaft on the external hydraulic cylinder 7 moves again. When the telescopic shaft on the external hydraulic cylinder 7 contacts the reversing assembly 64, the reversing assembly 64 operates, and the reversing assembly 64 operation pushes the cleaning component to the ground metal shaft, and then drives the metal shaft to move through the slide 2. When the metal shaft passes the position of the cleaning component, the cleaning component cleans the surface of the metal shaft, thereby removing the oil, grease, debris and dust remaining on the metal shaft, thereby fully removing the oil, grease, debris and dust on the metal shaft, thereby greatly improving the quality of subsequent laser welding, and by controlling the moving stroke of the telescopic shaft of the external hydraulic cylinder 7, the moving stroke of the cleaning component is adjusted, thereby facilitating the cleaning effect of metal shafts of different diameters, thereby greatly improving the range that can be cleaned, and the flipped baffle 51 can prevent debris or grinding fluid from splashing during the grinding of the metal shaft by the grinding mechanism 3, affecting the operator, and when not in use, the baffle 51 is in a horizontal state, and the baffle 51 can also be used as a placement table to further improve practicality.

[0023] Example 2: See Figures 1-12, different from the above-mentioned embodiment 1, the flip assembly 53 includes a semicircular gear ring 531, a rack 52 and a C-shaped card plate 521. The outer side of the semicircular gear ring 531 is fixedly connected to a connecting square rod 532, which is fixedly connected to the baffle 51, and the connecting square rod 532 is distributed on both sides of the baffle 51. The inner side of the connecting square rod 532 is hinged with a fixed shaft 533, and the fixed shaft 533 is fixedly connected to the machine 1. When the rack 52 moves, it can drive the semicircular gear ring 531 to rotate. The rack 52 is fixedly connected to the C-shaped card plate 521. The end of the C-shaped card plate 521 away from the rack 52 is fixedly connected to the connecting rod 522. An inner groove 523 is provided on the left connecting square rod 532. When the C-shaped card plate 521 moves, the C-shaped card plate 521 can be inserted into the inner groove 523, the locking part includes an arc slot and a round-headed plug rod 525, the arc slot 524 is provided on the right connecting square rod 532, the round-headed plug rod 525 is fixedly connected to the machine 1, after the baffle 51 is flipped over, the round-headed plug rod 525 can be inserted into the arc slot 524, the bottom surface of the baffle 51 is affixed with a support rod 511, the bottom of the support rod 511 is fixedly connected to a support plate 512, and the support plate 512 is fixedly connected to the machine 1, and a transparent glass 513 is provided on the baffle 51, and the transparent glass 513 is made of tempered glass. The outer side of the external hydraulic cylinder 7 is fixedly connected to a mounting plate 71, and the mounting plate 71 is fixedly connected to the machine 1, and the output shaft of the external hydraulic cylinder 7 passes through the mounting plate 71 and extends out of the mounting plate 71; In the initial state, the baffle 51 is in a horizontal state. At this time, the support rod 511 and the support plate 512 can support the baffle 51. At this time, the baffle 51 can be used as a placement table. Later, during grinding, the external hydraulic cylinder 7 is started, and the external hydraulic cylinder 7 moves to drive the C-shaped card plate 521 and the rack 52 to move. The rack 52 moves to drive the semicircular gear ring 531 to rotate. The rotation of the semicircular gear ring 531 drives the connecting square rod 532 to move in a circle around the fixed axis 533. The movement of the connecting square rod 532 drives the baffle 51 to move. At this time, the baffle 51 is flipped over. At this time, the round head insertion rod 525 is inserted into the arc slot 524 to position the connecting square rod 532. At the same time, the C-shaped card plate 521 is inserted into the inner groove 523. At this time, the baffle 51 is fixed in position with the cooperation of the C-shaped card plate 521 and the round head insertion rod 525.

[0024] It should be noted that one end of the round-headed plug rod 525 is fixedly connected to a retraction spring, and the end of the retraction spring away from the round-headed plug rod 525 is fixedly connected to the machine 1, and the round-headed plug rod 525 is axially slidably connected to the machine 1. When the baffle 51 flips over, the connecting square rod 532 squeezes the round-headed plug rod 525. At this time, the round-headed plug rod 525 squeezes the retraction spring, and the elastic force of the retraction spring is stored. After the baffle 51 flips over to the position to protect the slide 2, the arc slot 524 on the connecting square rod 532 moves to the round-headed plug rod 525. At this time, the retraction spring pushes the round-headed plug rod 525 into the arc slot 524. When the baffle 51 returns to its position, the flipping force of the baffle 51 is greater than the elastic force of the retraction spring. At this time, the connecting square rod 532 forces the arc slot 524 to separate from the round-headed plug rod 525.

[0025] Example 3: See Figures 1-12 , which is different from the above-mentioned embodiment 2, is that the reversing assembly 64 includes a push plate 63 and a bent pipe 641. The push plate 63 is fixedly connected to the output shaft of the outer hydraulic cylinder 7. The side of the push plate 63 away from the outer hydraulic cylinder 7 is fixedly connected to the connecting rod 522. The bent pipe 641 is installed on the machine 1 through a clamp. The inner side of the bent pipe 641 is slidably connected to the push rod 642. The outer end of the push rod 642 is fixedly connected to the pressure plate 643. The pressure plate 643 is fixedly connected to a return spring 644. The return spring 644 is away from the pressure plate 6 One end of 43 is fixedly connected to the elbow 641, and the end of the elbow 641 away from the pressure plate 643 is fixedly connected to the connecting pipe 645, and the end of the connecting pipe 645 away from the elbow 641 is fixedly connected to the vertical pipe 646. The elbow 641, the connecting pipe 645 and the vertical pipe 646 are connected, and hydraulic oil is provided between the push rod 642 and the slide rod 647. The hydraulic oil is distributed in the elbow 641, the connecting pipe 645 and the vertical pipe 646. The inner side of the vertical pipe 646 is slidably connected to the slide rod 647, and the slide rod 647 passes through The vertical tube 646 is fixedly connected to the mounting seat 648, and the mounting seat 648 is fixedly connected to the limiting rod 649. The limiting rod 649 is distributed on both sides of the mounting seat 648. The outer side of the limiting rod 649 is slidably connected to the bracket 6410. The limiting rod 649 is fixedly connected to the connecting spring 6411. The end of the connecting spring 6411 away from the limiting rod 649 is fixedly connected to the bracket 6410. The cleaning component includes a nitrogen nozzle 61, a laser pulse head 62, and a nitrogen nozzle 61 and a laser pulse head 63. 2 are all mounted on the mounting base 648, and the laser pulse head 62 is externally connected to the laser equipment, the nitrogen nozzle 61 is externally connected to the nitrogen bottle with an electric valve through a connecting pipe, and the connecting pipe is connected to the electric valve, the bottom of the bracket 6410 is slidably connected to the outer slide rail 6412, and the outer slide rail 6412 is provided with a plurality of horizontally arrayed adjustment screw holes 6413, and the screw holes 6413 are internally threaded with adjustment bolts 6414, and the adjustment bolts 6414 pass through the bracket 6410 and are threaded into the screw holes 6413; When the metal shaft needs to be cleaned, the position of the bracket 6410 is adjusted by adjusting the bolt 6414 and the screw hole 6413. When the metal shaft needs to be cleaned, the external hydraulic cylinder 7 is controlled to switch to the separation stroke state. After the external hydraulic cylinder 7 is operated, the rack 52 structure on its telescopic shaft is separated from the flip assembly 53, and drives the push plate 63 to gradually move toward the pressure plate 643. Then the push plate 63 squeezes the pressure plate 643, and the pressure plate 643 is driven to move into the bend 641. The pressure plate 643 moves to squeeze the return spring 644 and squeeze the push rod 642. The push rod 642 moves to transmit the pressure of the push plate 63 to the slide bar 647 through the hydraulic oil. At this time, the slide bar 647 is extended out of the vertical pipe 646, and the movement of the slide bar 647 drives the mounting seat 648 to move. The movement of 648 drives the limit rod 649 to move, and the limit rod 649 moves to squeeze the connecting spring 6411. At this time, the nitrogen nozzle 61 and the laser pulse head 62 on the mounting seat 648 are pushed toward the metal shaft, and then the metal shaft is driven to move through the slide 2. When the metal shaft passes the position of the nitrogen nozzle 61, the nitrogen nozzle 61 blows nitrogen to the surface of the metal shaft, thereby blowing away the grinding fluid, debris and dust remaining on the surface of the metal shaft. The metal shaft cleaned by the nitrogen nozzle 61 is then moved to the laser pulse head 62. At this time, the laser pulse head 62 cleans the surface of the metal shaft again, thereby removing the oil, grease, debris and dust remaining on the metal shaft. The nitrogen nozzle 61 and the laser pulse head 62 fully clean the surface of the metal shaft.

[0026] Example 4: See Figures 1-12 , which is different from the above-mentioned embodiment 3, an internal hydraulic cylinder is provided on the machine table 1, which is used to drive the slide table 2 to move. The fixing mechanism 4 includes a three-jaw chuck 41, a tailstock 42 and an inner slide rail 43. The inner slide rail 43 is installed on the slide table 2, and the three-jaw chuck 41 and the tailstock 42 are installed in the inner slide rail 43. The grinding mechanism 3 includes an adjustment table 31, a grinding wheel 32 and a nozzle 33. The adjustment table 31 is fixedly connected to the machine table 1, and the grinding wheel 32 is slidably connected to the adjustment table 31. The three-jaw chuck 41 and the grinding wheel 32 are both provided with a driving mechanism on the outside. The nozzle 33 is installed on the grinding wheel 32 and is used to spray the grinding fluid. During use, the two ends of the metal shaft are fixed by the three-jaw chuck 41 and the tailstock 42, and then the position of the grinding wheel 32 is adjusted by the adjustment table 31. Then, the three-jaw chuck 41 and the grinding wheel 32 are driven to rotate by the driving mechanism to grind the metal shaft. Then, the slide 2 is driven by the internal hydraulic cylinder to move along the machine table 1, thereby realizing the entire grinding of the metal shaft. During grinding, grinding fluid is sprayed through the nozzle 33 to cool the metal shaft and the grinding wheel 32, and then the grinding of the metal shaft can be realized.

[0027] A spiral shaft grinding method comprises the following steps: S1. Fix the metal shaft by the fixing mechanism 4 and adjust the position of the grinding wheel 32 by the adjusting table 31; S2, the external hydraulic cylinder 7 drives the flip assembly 53 to operate, and the flip assembly 53 drives the baffle 51 to flip; S3, grinding the metal shaft through the cooperation of the internal hydraulic cylinder, the slide 2 and the grinding wheel 32 until the metal shaft is ground to a specified diameter; S4. The reversing assembly 64 is driven to operate by the operation of the external hydraulic cylinder 7. The reversing assembly 64 operates to push the cleaning assembly toward the metal shaft, and then the cleaning assembly cleans the surface of the metal shaft.

[0028] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A spiral shaft grinding machine tool, comprising a machine platform, characterized in that: The machine is provided with a slide and a grinding mechanism, the slide is provided with a fixing mechanism, the fixing mechanism is used to fix the metal shaft, and during grinding, the fixing mechanism can drive the metal shaft to rotate, and the grinding mechanism is used to grind the metal shaft. The machine is also provided with a locking member, a baffle, a flip assembly, an external hydraulic cylinder and a cleaning mechanism, and a rack structure is provided on the telescopic end of the external hydraulic cylinder; The flip assembly is provided with a gear ring with an arc distribution, and the flip assembly is used to drive the baffle to flip; The cleaning mechanism includes a cleaning component and a reversing component, wherein the cleaning component is used to clean the surface of the metal shaft, and the reversing component is used to push the cleaning component toward the ground metal shaft; The outer hydraulic cylinder is provided with an engagement stroke and a disengagement stroke in sequence on the extension stroke; During the meshing stroke stage, the rack structure can mesh with the ring gear, and the baffle is flipped and rotated due to the rotation of the flip assembly until the inner side surface of the baffle rotates to a protective position for protecting the fixing mechanism. At this time, the locking member locks the baffle; During the separation stroke stage, the rack structure is not engaged with the ring gear and the baffle is always locked. When the external hydraulic cylinder moves to contact the reversing assembly, the reversing assembly can push the cleaning assembly to move toward the metal shaft in a force-accumulating manner, so that the vertical line segment between the position of the cleaning assembly and the metal shaft becomes shorter.

2. The spiral shaft grinding machine according to claim 1, characterized in that: The flip assembly includes a semicircular gear ring, a rack and a C-shaped card plate. The outer side of the semicircular gear ring is fixedly connected to a connecting square rod, and the connecting square rod is fixedly connected to the baffle. The connecting square rods are distributed on both sides of the baffle. The inner side of the connecting square rod is hinged with a fixed shaft, and the fixed shaft is fixedly connected to the machine platform. When the rack moves, it can drive the semicircular gear ring to rotate.

3. The spiral shaft grinding machine according to claim 2, characterized in that: The rack is fixedly connected to the C-shaped card plate, and the end of the C-shaped card plate away from the rack is fixedly connected to a connecting rod. An inner groove is provided on the connecting square rod on the left side. When the C-shaped card plate moves, the C-shaped card plate can be inserted into the inner groove. The locking part includes an arc slot and a round-headed insertion rod. The arc slot is provided on the connecting square rod on the right side. The round-headed insertion rod is fixedly connected to the machine platform. After the baffle is flipped over, the round-headed insertion rod can be inserted into the arc slot.

4. The spiral shaft grinding machine according to claim 1, characterized in that: The bottom surface of the baffle is fitted with a support rod, the bottom of the support rod is fixedly connected to a support plate, the support plate is fixedly connected to the machine platform, and transparent glass is provided on the baffle, and the transparent glass is tempered glass.

5. The spiral shaft grinding machine according to claim 1, characterized in that: The outer side of the outer hydraulic cylinder is fixedly connected with a mounting plate, and the mounting plate is fixedly connected to the machine platform. The output shaft of the outer hydraulic cylinder passes through the mounting plate and extends out of the mounting plate.

6. The spiral shaft grinding machine according to claim 3, characterized in that: The reversing assembly includes a push plate and a bent pipe, the push plate is fixedly connected to the output shaft of the outer hydraulic cylinder, the push plate is fixedly connected to the connecting rod on the side away from the outer hydraulic cylinder, the bent pipe is installed on the machine through a clamp, the inner side of the bent pipe is slidably connected to a push rod, the outer end of the push rod is fixedly connected to a pressure plate, the pressure plate is fixedly connected to a return spring, the end of the return spring away from the pressure plate is fixedly connected to the bent pipe, the end of the bent pipe away from the pressure plate is fixedly connected to a connecting pipe, the end of the connecting pipe away from the bent pipe is fixedly connected to a vertical pipe, and the bent pipe, connecting pipe and vertical pipe are connected.

7. The spiral shaft grinding machine according to claim 6, characterized in that: The inner side of the vertical tube is slidably connected to a sliding rod, the sliding rod passes through the vertical tube and is fixedly connected to a mounting seat, the mounting seat is fixedly connected to a limiting rod, the limiting rods are distributed on both sides of the mounting seat, the outer side of the limiting rod is slidably connected to a bracket, the limiting rod is fixedly connected to a connecting spring, and the connecting spring is fixedly connected to the bracket at one end away from the limiting rod.

8. The spiral shaft grinding machine according to claim 7, characterized in that: The cleaning component includes a nitrogen nozzle and a laser pulse head, both of which are mounted on the mounting seat, and the laser pulse head is externally connected to a laser device. The nitrogen nozzle is externally connected to a nitrogen bottle with an electric valve via a connecting pipe, and the connecting pipe is connected to the electric valve.

9. The spiral shaft grinding machine according to claim 7, characterized in that: The bottom of the bracket is slidably connected to an outer slide rail, and the outer slide rail is provided with a plurality of horizontal array adjusting screw holes, and the screw holes are threadedly connected to adjusting bolts, and the adjusting bolts pass through the bracket and are threadedly connected to the screw holes. An internal hydraulic cylinder is provided on the machine platform, and the internal hydraulic cylinder is used to drive the slide to move. The fixing mechanism includes a three-jaw chuck, a tailstock and an inner slide rail, and the inner slide rail is installed on the slide, and the three-jaw chuck and the tailstock are installed in the inner slide rail. The grinding mechanism includes an adjusting platform and a grinding wheel nozzle, and the adjusting platform is fixedly connected to the machine platform, and the grinding wheel is slidably connected to the adjusting platform. A driving mechanism is provided on the outside of the three-jaw chuck and the grinding wheel, and the nozzle is installed on the grinding wheel. The nozzle is used to spray grinding fluid.

10. A spiral shaft grinding method, characterized in that: The following steps are involved: S1. Fix the metal shaft through the fixing mechanism and adjust the position of the grinding wheel through the adjustment table; S2, the external hydraulic cylinder drives the flip assembly to operate, and the flip assembly drives the baffle to flip; S3, grinding the metal shaft through the cooperation of the internal hydraulic cylinder, the slide and the grinding wheel until the metal shaft is ground to a specified diameter; S4. The reversing component is driven to operate by the operation of the external hydraulic cylinder. The operation of the reversing component pushes the cleaning component toward the metal shaft, and then the surface of the metal shaft is cleaned by the cleaning component.

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