End milling machine tool for track shoe of excavator and method thereof

Abstract

The invention belongs to the technical field of milling machines, and particularly relates to an excavator track shoe vertical milling machine tool and a method thereof. Comprising a base, a multi-axis machine tool and track shoes. The multi-axis machine tool is mounted at the top of the base; the creeper tread is clamped at the top of the base; a shaft body capable of moving towards or away from the base is mounted on the multi-shaft machine tool; a positioning milling unit is arranged on the shaft body; the positioning milling unit comprises a positioning circular block which is connected to the end point of the shaft body; the U-shaped square seat is mounted at the bottom of the positioning round block, and an opening faces the side wall of the multi-axis machine tool; a positioning cylinder is fixedly connected in the U-shaped square seat; the positioning square block is connected to the positioning cylinder in a penetrating manner and is in sliding fit with the positioning cylinder; a circular base is mounted on the positioning square block; the self-centering clamp is rotationally connected to the side, close to the base, of the circular base; the operation error probability of the machine tool and the operation risk of the machine tool are reduced, meanwhile, the production efficiency of equipment is remarkably reduced, and therefore the limitation of the machine tool in actual application is further reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of milling machines, and in particular relates to an excavator track shoe vertical milling machine tool and a method thereof. Background Art

[0002] Excavator track shoes are the core chassis components of construction machinery and an important part of the excavator's crawler walking device. Their main function is to provide buoyancy and traction for the equipment, protect the crawler link assembly, and ultimately ensure that the excavator can stably walk and operate in muddy, rugged and other complex terrains. To meet actual usage needs, track shoe manufacturing needs to be processed into flat surfaces, specific angle bevels or grooves - such processing requirements can not only ensure the assembly accuracy of track shoes and chain track links and other components, but also improve the contact stability between the track shoes and the ground when the equipment is operating. To meet this demand, the vertical milling process can accurately complete the above-mentioned plane and bevel processing by matching different types of milling cutters, which is fully adapted to the manufacturing requirements of track shoes.

[0003] When the existing excavator track plate end milling machine is in operation, it usually uses a vertical working spindle for operation, and the milling cutter is installed on the spindle; when the milling cutter is fed and reset to the initial position, the position is always fixed, resulting in the inability to adjust the distance between the milling cutter and the workpiece; this problem makes it easy to cause two types of risks when the machine tool processes workpieces of different thicknesses, if the original programming program is used to control the feed movement: one is that the milling cutter does not descend enough and cannot contact the workpiece, resulting in missed cutting and incomplete processing; the other is that the descent is too large, exceeding the actual thickness of the workpiece, causing the workpiece and the milling cutter to be easily damaged (i.e. "cutting"), even if there is no cutting collision, it will cause the workpiece to be overcut and the size to be scrapped, and ultimately reduce the processing accuracy; if the original programming program is not used, the staff will need to frequently modify the code according to the thickness of the workpiece to control the real-time stop position of the milling cutter - this will not only increase the probability of operating errors and machine operation risks, but also significantly reduce the production efficiency of the equipment, resulting in strong limitations in its actual application. Summary of the Invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides an excavator track shoe end milling machine tool and method thereof, which effectively solves the problems in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: an excavator track shoe end milling machine tool, comprising a base, a multi-axis machine tool, and a track shoe; the multi-axis machine tool is mounted on the top of the base; the track shoe is clamped on the top of the base; the multi-axis machine tool is mounted on a shaft body that can move toward or away from the base; the shaft body is provided with a positioning milling unit for milling the track shoe to form a flat surface, a specific angle inclined surface, and a groove; the positioning milling unit comprises: Positioning round block, connected to the end point of the shaft; A U-shaped square seat is installed at the bottom of the positioning round block, with its opening facing the side wall of the multi-axis machine tool; a positioning cylinder is fixedly connected to the U-shaped square seat; The positioning block is connected to the positioning cylinder through and through, and the two are slidably matched; the positioning block is installed with a circular base; A self-centering fixture is rotatably connected to the circular base near the base; the self-centering fixture clamps a milling cutter; The positioning block is provided with a sliding stop device for adjusting the distance between the milling cutter and the track shoe in the initial position; the sliding stop device includes: The first base is installed on both sides of the positioning block; The circular base is provided with a double-action cleaning component for cleaning impurities and debris adhering to the milling cutter; the double-action cleaning component includes: The retaining rack is installed at the bottom of the positioning circle.

[0006] Preferably, it comprises a stop cylinder mounted on the first base; the two stop cylinders are slidably connected to a stop transverse plate located on the side of the U-shaped square base away from the multi-axis machine tool; the stop transverse plate is connected to a pull ring; The stop square groove is arranged on the side of the positioning cylinder close to the stop horizontal plate; a plurality of stop square grooves are arranged at equal distances; The stop block is installed on the side of the stop horizontal plate close to the U-shaped square seat; when the positioning block needs to be limited, the stop block passes through the U-shaped square seat and the positioning block and is connected to one of the stop square grooves.

[0007] Preferably, the opposite sides of the two stop cylinders are provided with a number of equidistantly arranged tooth grooves; the end of the stop cylinder away from the first base is connected to the stop limit plate; the stop cylinder is sleeved with a stop spring; one end of the stop spring is fixedly connected to the stop limit plate, and the other end is fixedly connected to the stop horizontal plate; extended bases are installed on both sides of the stop horizontal plate; the positioning cylinder is sleeved with a positioning spring; one end of the positioning spring is fixedly connected to the inner wall of the U-shaped square seat, and the other end is fixedly connected to the positioning block.

[0008] Preferably, it includes a limiting block; two limiting blocks are installed on both sides of the positioning circular block; A limiting cylinder, fixedly connected to the top of the limiting block; The second base is mounted on the multi-axis machine tool; the second base is connected to the limiting cylinder, and the two are slidably matched; when the shaft drives the positioning block to approach or move away from the track shoe, the positioning block is limited and moved at the second base by the limiting cylinder on the limiting block; The limiting spring is sleeved on the limiting cylinder; one end of the limiting spring is fixedly connected to the second base, and the other end is connected to the limiting circular plate; the limiting circular plate is fixedly connected to the end of the limiting cylinder away from the limiting block.

[0009] Preferably, it comprises a liquid collection cylinder, which is installed on the side of the circular base away from the base; a nozzle is installed on the liquid collection cylinder; and the output end of the nozzle faces the end of the milling cutter away from the self-centering fixture.

[0010] Preferably, the extended base is provided with a locking and anti-movement mechanism; the locking and anti-movement mechanism comprises a locking square column, which is installed on the side of the extended base away from the stop horizontal plate; the locking square column is connected to a locking limit plate at one end away from the extended base; The locking slider is connected to the locking square column, and the two are slidably matched; A locking spring is sleeved on the locking square column; one end of the locking spring is fixedly connected to the locking limit plate, and the other end is fixedly connected to the locking slider; signal patches are provided on the opposite surfaces of the locking slider and the extended base; when the locking spring is not deformed, the locking slider and the signal patches on the extended base are in contact.

[0011] Preferably, it comprises an L-shaped horizontal plate, which is mounted on the locking slider; a guide slide is connected through the side of the L-shaped horizontal plate close to the stop cylinder, which slides with the L-shaped horizontal plate; the guide slide is connected to a guide limit plate at one end away from the stop cylinder, and is connected to a locking tooth block at one end close to the stop cylinder; the tooth groove is located in the moving path of the locking tooth block, and when the stop horizontal plate does not need to move, the tooth groove is connected to the locking tooth block; The guide spring is sleeved on the guide slide column; one end of the guide spring is fixedly connected to the guide limit plate, and the other end is fixedly connected to the L-shaped horizontal plate.

[0012] Preferably, the U-shaped square seat is provided with an energy dissipation and anti-deflection component; the energy dissipation and anti-deflection component comprises a T-shaped base fixedly mounted on the side of the U-shaped square seat close to the base; the T-shaped base is provided with an energy absorbing cylinder; An energy absorbing column is slidably connected in the energy absorbing cylinder; An energy-absorbing spring is located in the energy-absorbing cylinder; one end of the energy-absorbing spring is fixedly connected to the inner bottom surface of the energy-absorbing cylinder, and the other end is fixedly connected to the energy-absorbing column; an energy-absorbing square plate is installed at one end of the energy-absorbing column close to the base; The energy-absorbing rubber pad is connected to the side of the energy-absorbing square plate close to the base; the track shoe is located in the moving path of the energy-absorbing rubber pad.

[0013] Preferably, it includes a third base, which is installed on the circular base; A driving shaft is rotatably connected to the third base; a driving gear is mounted on one end of the driving shaft, and an active bevel gear is mounted on the other end; the driving gear is meshed with the retaining rack; A driving base is connected to the circular base; a reciprocating screw rod is installed on the driving base; The driven bevel gear is connected to the reciprocating screw rod; the driven bevel gear is meshed with the active bevel gear; The reciprocating block is threadedly connected to the reciprocating screw rod; a reciprocating slide is installed on the driving base; the reciprocating slide is connected to the reciprocating block through and the two are slidably matched; The reciprocating cleaning ring is installed on the reciprocating block and sleeved on the milling cutter; the reciprocating cleaning ring is equipped with a plurality of high-pressure nozzles, all facing the working end of the milling cutter.

[0014] The present invention also provides an excavator track shoe end milling method, comprising the following steps: S1. Install the milling cutter on the self-centering fixture, clamp the track shoe to be processed on the top of the base, and then control the positioning milling unit to mill the track shoe; S2. Operate the double-action cleaning component to clean the debris or impurities adhering to the milling cutter to prevent affecting the machining accuracy and effect of the track shoe; S3. Use the sliding stop device to control the distance between the milling cutter and the track shoe according to the actual situation to avoid "knife collision" or overcutting.

[0015] From the above, it can be seen that the present invention provides an excavator track shoe vertical milling machine with the effect of adjusting the distance between the milling cutter and the track shoe according to the actual processing requirements and the thickness of the workpiece, so as to avoid the phenomenon that the distance between the milling cutter and the track shoe cannot be adjusted after the milling cutter is fixed at the initial position after the feeding is completed and reset to the initial position. The height position of the milling cutter is adjusted in real time according to the thickness of the track shoe, so that the machine tool can use the original programming program to control the feed movement when processing track shoes of different thicknesses, so as to avoid the situation that the milling cutter is not descended enough to contact the track shoe, resulting in missed cutting and incomplete processing, and at the same time, avoid the milling cutter from descending too much and exceeding the actual thickness of the track shoe, resulting in easy damage to the track shoe and the milling cutter (i.e., "knife collision"). Even if the cutter does not collide, the phenomenon of overcutting and scrapping of the track plate can be avoided, thereby improving the processing accuracy of the track plate by the equipment; at the same time, the process and means of adjusting the distance between the milling cutter and the track plate when the staff controls the machine tool processing are convenient and quick, and can be completed without the help of any tools, avoiding the impact of the distance adjustment between the milling cutter and the track plate when the machine tool is in use due to the lack of handy tools, so that when the machine tool is in use, the staff can avoid the phenomenon of frequently modifying the code according to the thickness of the track plate to control the real-time stop position of the milling cutter. This not only reduces the probability of machine tool operation errors and machine tool operation risks, but also significantly reduces the production efficiency of the equipment, thereby further reducing the limitations of the machine tool in actual application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0017] In the attached figure: Figure 1It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the U-shaped square base structure of the present invention; Figure 3 This is a schematic diagram of the retaining rack structure of the present invention; Figure 4 This is a schematic diagram of the shaft structure of the present invention; Figure 5 This is a schematic diagram of the locking gear block structure of the present invention; Figure 6 This is a schematic diagram of the energy-absorbing square plate structure of the present invention; Figure 7 This is a schematic diagram of the positioning block structure of the present invention; Figure 8 This is a cross-sectional view of the retaining square groove of the present invention; Figure 9 This is a schematic diagram of the structure of the double-acting cleaning ring of the present invention; Figure 10 This is a schematic diagram of the structure of the stopper horizontal plate of the present invention; In the figure: 1. Multi-axis machine tool; 2. Axis body; 3. Positioning block; 4. U-shaped square base; 5. Positioning cylinder; 6. Positioning block; 7. Circular base; 8. Self-centering fixture; 9. First base; 10. Retaining rack; 11. Stop cylinder; 12. Stop cross plate; 13. Stop square groove; 14. Stop insert; 15. Stop limit plate; 16. Stop spring; 17. Extended base; 18. Positioning spring; 19. Limiting block; 20. Limiting cylinder; 21. Second base; 22. Limiting spring; 23. Limiting plate; 24. Liquid collecting cylinder; 25. Nozzle; 26. Locking column; 27 , locking limit plate; 28. Locking slider; 29. ​​Locking spring; 30. Signal patch; 31. L-shaped cross plate; 32. Guide slide; 33. Locking gear block; 34. Guide spring; 35. T-shaped base; 36. Energy-absorbing cylinder; 37. Energy-absorbing column; 38. Energy-absorbing spring; 39. Energy-absorbing square plate; 40. Energy-absorbing rubber pad; 41. Third base; 42. Driving shaft; 43. Driving gear; 44. Active bevel gear; 45. Driving base; 46. Reciprocating screw; 47. Driven bevel gear; 48. Reciprocating block; 49. Reciprocating slide; 50. Reciprocating cleaning ring; 51. High-pressure nozzle. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0019] Example, by Figures 1 to 10The present invention includes a base, a multi-axis machine tool 1, and a track shoe; the multi-axis machine tool 1 is installed on the top of the base; the track shoe is clamped on the top of the base; a shaft body 2 that can move toward or away from the base is installed on the multi-axis machine tool 1; a positioning milling unit is provided on the shaft body 2, which is used to mill the track shoe to form a flat surface, a specific angle bevel and a groove; the positioning milling unit includes: a positioning round block 3, connected at the end point of the shaft body 2; a U-shaped square seat 4, installed at the bottom of the positioning round block 3, and the opening faces the side wall of the multi-axis machine tool 1; a positioning cylinder 5 is fixedly connected in the U-shaped square seat 4; a positioning block 6 is connected to the positioning cylinder 5 through and the two are slidably matched; a circular base 7 is installed on the positioning block 6; a self-centering fixture 8 is rotatably connected to the side of the circular base 7 close to the base; a milling cutter is clamped on the self-centering fixture 8; a limiting block 19; two The limiting blocks 19 are installed on both sides of the positioning circular block 3; the limiting cylinder 20 is fixedly connected to the top of the limiting block 19; the second base 21 is installed on the multi-axis machine tool 1; the second base 21 is connected to the limiting cylinder 20, and the two are slidably matched; when the shaft body 2 drives the positioning circular block 3 to approach / move away from the track shoe, the positioning circular block 3 is limited and moved at the second base 21 by the limiting cylinder 20 on the limiting block 19; the limiting spring 22 is sleeved on the limiting cylinder 20; one end of the limiting spring 22 is fixedly connected to the second base 21, and the other end is connected to the limiting circular plate 23; the limiting circular plate 23 is fixedly connected to the end of the limiting cylinder 20 away from the limiting block 19; the liquid collection cylinder 24 is installed on the side of the circular base 7 away from the base; a nozzle 25 is installed on the liquid collection cylinder 24; the output end of the nozzle 25 is facing the end of the milling cutter away from the self-centering fixture 8; When the multi-axis machine tool 1 is in use, the track shoe to be processed is fixed on the base, and the milling cutter is installed on the self-centering fixture 8. Then, by controlling the shaft body 2, the positioning block 3 on the end point is moved close to the base, and the self-centering fixture 8 is installed on the circular base 7. It is installed on the positioning block 3 through the positioning block 6, the positioning cylinder 5 and the U-shaped square seat 4, which can drive the milling cutter to move down and move close to the track shoe. The track shoe can be processed by the high-speed rotating milling cutter contacting the track shoe, and the multi-axis machine tool 1 can control the milling cutter to process the track shoe at different positions and angles, so that it can be milled to form a flat surface, a specific angle bevel and a groove, thereby completing the milling of the track shoe; at the same time, during the processing, by controlling the nozzle 25, the coolant in the liquid accumulation cylinder 24 is continuously sprayed on the contact surface between the milling cutter and the track shoe, so as to reduce the contact temperature between the two, avoid the temperature at the milling position being too high to reduce the milling effect and damage the milling cutter and the track shoe, thereby improving the multi-axis When the positioning block 3 moves toward the base and drives the milling cutter to move synchronously, the positioning block 3 will be moved within the upper limit of the second base 21 through the limiting cylinder 20 on the limiting block 19, which is used to limit the downward movement of the positioning block 3, so as to avoid the shaking caused by the downward movement of the positioning block 3 during movement being transmitted to the milling cutter and affecting its processing effect on the track shoe. At the same time, it avoids the vibration feedback when the milling cutter processes the track shoe being transmitted to the positioning block 3 and affecting its movement stability, thereby improving the movement stability of the positioning block 3 and the processing accuracy of the multi-axis machine tool, so that the processing effect of the equipment is improved; at the same time, when the above-mentioned positioning block 3 moves downward, the limiting spring 22 will be in a buffering state, and the damping feeling generated is used to reduce the speed at which the milling cutter moves to the end position, so as to avoid the positioning block 3 driving the milling cutter to descend too fast, resulting in instability or tool collision, thereby improving the safety and service life of the multi-axis machine tool 1.

[0020] The positioning block 6 of this embodiment is provided with a sliding stop device for adjusting the distance between the milling cutter and the track shoe in the initial position; the sliding stop device includes a first base 9, which is installed on both sides of the positioning block 6; a stop cylinder 11, which is installed on the first base 9; the two stop cylinders 11 are slidably connected with a stop transverse plate 12, which is located on the side of the U-shaped square seat 4 away from the multi-axis machine tool 1; a pull ring is connected to the stop transverse plate 12; a stop square groove 13 is provided on the side of the positioning cylinder 5 close to the stop transverse plate 12; a plurality of stop square grooves 13 are arranged at equal distances; a stop plug 14 is installed on the side of the stop transverse plate 12 close to the U-shaped square seat 4; when the positioning block 6 needs to be limited When the first stop block 11 is in position, the stop plug 14 passes through the U-shaped square seat 4 and the positioning block 6 and is connected to one of the stop square grooves 13; the opposite sides of the two stop cylinders 11 are provided with a number of equidistantly arranged tooth grooves; the end of the stop cylinder 11 away from the first base 9 is connected to the stop limit plate 15; a stop spring 16 is sleeved on the stop cylinder 11; one end of the stop spring 16 is fixedly connected to the stop limit plate 15, and the other end is fixedly connected to the stop horizontal plate 12; extended bases 17 are installed on both sides of the stop horizontal plate 12; a positioning spring 18 is sleeved on the positioning cylinder 5; one end of the positioning spring 18 is fixedly connected to the inner wall of the U-shaped square seat 4, and the other end is fixedly connected to the positioning block 6; When the multi-axis machine tool 1 is milling track plates of different thicknesses, the distance between the track plates and the milling cutter changes. If the distance between the two is not adjusted, the milling cutter will collide with the tool next time the machine tool is running. If the programming code of the machine tool is modified according to the thickness of the track plate each time, errors or error prompts will easily occur, which will affect the normal operation of the machine tool. At this time, by pulling the pull ring outward, the stop cross plate 12 on it moves within the limit position at the stop cylinder 11, so that the stop spring 16 is in a buffer state, and the stop cross plate 12 moves away from the U-shaped square seat 4 at this time, so that the stop plug 14 on the stop cross plate 12 is disengaged from the positioning block 6 and the U-shaped square seat in turn. The seat 4 is no longer connected to the stop square groove 13, thereby releasing the limit setting of the positioning block 6. At this time, by pulling the positioning block 6 up and down, it can be moved within the upper limit of the positioning cylinder 5, so that the positioning spring 18 is in a buffer state, which can drive the circular base 7 to move synchronously. The milling cutter is installed on the circular base 7, which can drive the milling cutter to move up and down, so that the distance between the milling cutter and the track shoe can be adjusted according to the actual processing requirements and the thickness of the workpiece, avoiding the phenomenon that the distance between the milling cutter and the track shoe cannot be adjusted after the milling cutter is fed and reset to the initial position. The height position of the milling cutter is adjusted in real time according to the thickness of the track shoe. This allows the machine tool to use the original programming program to control the feed movement when processing track shoes of different thicknesses, avoiding the situation where the milling cutter is not able to contact the track shoe due to insufficient descent, resulting in missed cutting and incomplete processing, and at the same time avoiding the milling cutter from descending too much and exceeding the actual thickness of the track shoe, resulting in easy damage to the track shoe and the milling cutter (i.e., "knife collision"). Even if the tool does not collide, it can avoid the phenomenon of overcutting the track shoe and scrapping the size, thereby improving the equipment's processing accuracy of the track shoe; at the same time, when the height position of the milling cutter is adjusted, the stop cross plate 12 is released, and the stop cross plate 12 can be driven to reset and move by resetting the stop spring 16, so that the stop plug 1 on it 4 passes through the U-shaped square seat 4 and the positioning block 6 and is connected to one of the stop square grooves 13, so as to limit the positioning block 6 and fix the milling cutter at the current height position for use, thereby preventing the distance between the milling cutter and the track shoe from changing due to non-human factors during the machine tool processing process. At the same time, the positioning spring 18 in the buffer state cannot be reset, and the resulting elastic force acts on the positioning block 6, thereby further strengthening the contact strength and friction between the stop block 14 and the stop square groove 13, preventing the stop block 14 from being dislocated during use, thereby affecting the installation state and use stability of the milling cutter, and reducing the limitations of the milling cutter when used;This makes it quick and easy for operators to adjust the distance between the milling cutter and the track shoe when controlling machine tool processing, and can be done without any tools. This prevents the machine tool from being used without tools that affect the distance adjustment between the milling cutter and the track shoe. It also prevents operators from frequently modifying the code to control the real-time stop position of the milling cutter based on the thickness of the track shoe. This not only reduces the probability of machine tool operation errors and machine operation risks, but also significantly reduces the production efficiency of the equipment, thereby further reducing the limitations of the machine tool in practical application.

[0021] The circular base 7 of this embodiment is provided with a double-action cleaning component for cleaning impurities and debris adhering to the milling cutter; the double-action cleaning component includes a retaining rack 10, which is installed at the bottom of the positioning round block 3; a third base 41, which is installed on the circular base 7; a driving shaft 42, which is rotatably connected to the third base 41; a driving gear 43 is installed at one end of the driving shaft 42, and an active bevel gear 44 is installed at the other end; the driving gear 43 is meshed with the retaining rack 10; a driving base 45 is connected to the circular base 7; A reciprocating screw 46 is mounted on the dynamic base 45; a driven bevel gear 47 is connected to the reciprocating screw 46; the driven bevel gear 47 is meshed with the active bevel gear 44; a reciprocating block 48 is threadedly connected to the reciprocating screw 46; a reciprocating slide 49 is mounted on the driving base 45; the reciprocating slide 49 is connected to the reciprocating block 48 in a sliding manner; a reciprocating cleaning ring 50 is mounted on the reciprocating block 48 and is sleeved on the milling cutter; a plurality of high-pressure nozzles 51 are mounted on the reciprocating cleaning ring 50, all of which are directed towards the working end of the milling cutter; When adjusting the distance between the milling cutter and the track shoe, the milling cutter moves up and down with the positioning block 6, so that the distance between the circular base 7 and the positioning circular block 3 on it will change, and the driving gear 43 is installed on the circular base 7, and the retaining rack 10 is installed on the positioning circular block 3, so that when the circular base 7 drives the driving gear 43 to move, it rotates due to the engagement with the retaining rack 10, so that it drives the driven bevel gear 47 to rotate under the transmission of a series of parts, so that the reciprocating screw 46 on it rotates on the driving base 45, so that the reciprocating block 48 threadedly connected to the reciprocating screw 46 can move back and forth on the reciprocating slide 49, which can drive the reciprocating cleaning ring 50 to move back and forth at the milling cutter, so as to reciprocate and clean the impurities and debris remaining on the milling cutter. It is also worth mentioning that when the locking tooth block 33 is no longer engaged with the tooth groove on the stop cylinder 11 After that, it means that the limit setting of the stop cross plate 12 needs to be released, which means that the height position of the milling cutter needs to be controlled so that the locking slider 28 and the signal patch 30 on the opposite surface of the extended base 17 no longer contact each other. The signal disconnection will be discovered in time by the controller, and a start signal will be sent to the high-pressure nozzle 51 simultaneously, so that it can continuously spray air or liquid at the milling cutter to further clean the impurities or debris adhering to the milling cutter. At the same time, when the reciprocating cleaning ring 50 moves back and forth up and down, it simultaneously drives the high-pressure nozzle 51 to move, so that it can clean different positions of the milling cutter, avoid dead angles in cleaning, improve the cleaning effect of the milling cutter, and improve the effect and precision of the milling cutter in subsequent use and processing; at the same time, it avoids the impurities or debris adhering to the milling cutter when it is used next time and affects the processing effect of the track plate, so that the use effect of the machine tool can be improved.

[0022] The extended base 17 of this embodiment is provided with a locking anti-movement mechanism; the locking anti-movement mechanism includes a locking column 26, which is installed on the side of the extended base 17 away from the stop horizontal plate 12; the locking column 26 is connected to a locking limit plate 27 at one end away from the extended base 17; a locking slider 28 is connected to the locking column 26 through the locking column 26, and the two are slidably matched; a locking spring 29 is sleeved on the locking column 26; one end of the locking spring 29 is fixedly connected to the locking limit plate 27, and the other end is fixedly connected to the locking slider 28; the opposite surfaces of the locking slider 28 and the extended base 17 are provided with signal patches 30; when the locking spring 29 is not deformed, the locking slider 28 and the extended base 17 are locked. The signal patch 30 on the long base 17 contacts; the L-shaped horizontal plate 31 is mounted on the locking slider 28; a guide slide 32 is connected to the side of the L-shaped horizontal plate 31 close to the stop cylinder 11, which slides with the L-shaped horizontal plate 31; the end of the guide slide 32 away from the stop cylinder 11 is connected to the guide limit plate, and the end close to the stop cylinder 11 is connected to the locking tooth block 33; the tooth groove is located in the moving path of the locking tooth block 33, and when the stop horizontal plate 12 does not need to move, the tooth groove is connected to the locking tooth block 33; a guide spring 34 is sleeved on the guide slide 32; one end of the guide spring 34 is fixedly connected to the guide limit plate, and the other end is fixedly connected to the L-shaped horizontal plate 31; When the machine tool needs to control the distance between the milling cutter and the track shoe during use, it is necessary to operate the stop cross plate 12 to move. At this time, by pulling the locking slider 28 outward, it moves to the upper limit position of the locking square column 26, so that the locking spring 29 is in a buffer state, so that the L-shaped cross plate 31 on the locking slider 28 moves away from the stop cylinder 11, so that the L-shaped cross plate 31 drives the locking tooth block 33 to move away from the stop cylinder 11 under the action of the guide slide 32 and the guide spring 34, so that the locking tooth block 33 is no longer engaged with the tooth groove on the stop cylinder 11, thereby releasing the limit setting of the stop cross plate 12, so that the height position of the milling cutter can be normally controlled to adjust the distance between the milling cutter and the track shoe as needed; when the distance adjustment between the milling cutter and the track shoe is completed, By loosening the locking slider 28, the locking spring 29 can be used to reset the L-shaped cross plate 31, so that under the action of the guide slide 32 and the guide spring 34, the locking tooth block 33 is driven to move closer to the stop cylinder 11, so that the locking tooth block 33 is in meshing state with the tooth groove on the stop cylinder 11, and the stop cross plate 12 is stuck, so that it cannot move further, thereby limiting the stop cross plate 12 to the current position, avoiding the milling cutter from being displaced or dislocated due to the displacement or dislocation of the stop cross plate 12 during use, resulting in the stop plug 14 on it being disconnected from the stop square groove 13, resulting in a change in the milling cutter height, reducing the limitations of the machine tool during use, and at the same time improving the machining accuracy of the machine tool during use; thereby improving the use effect of the equipment.

[0023] The U-shaped square seat 4 of this embodiment is provided with an energy dissipation and anti-deflection assembly; the energy dissipation and anti-deflection assembly includes a T-shaped base 35, which is fixedly mounted on the side of the U-shaped square seat 4 close to the base; an energy absorbing cylinder 36 is mounted on the T-shaped base 35; an energy absorbing column 37 is slidably connected to the energy absorbing cylinder 36; an energy absorbing spring 38 is located in the energy absorbing cylinder 36; one end of the energy absorbing spring 38 is fixedly connected to the inner bottom surface of the energy absorbing cylinder 36, and the other end is fixedly connected to the energy absorbing column 37; an energy absorbing square plate 39 is mounted on one end of the energy absorbing column 37 close to the base; an energy absorbing rubber pad 40 is connected to the side of the energy absorbing square plate 39 close to the base; and the track shoe is located in the moving path of the energy absorbing rubber pad 40; When the machine tool is processing the track shoe, the positioning round block 3 can be driven downward by the shaft body 2, so that the milling cutter on it moves close to the track shoe and contacts it. At the same time, the T-shaped base 35 on the U-shaped square seat 4 moves close to the track shoe, so that the T-shaped base 35 drives the energy absorbing square plate 39 to move close to the track shoe under the action of the energy absorbing cylinder 36, the energy absorbing column 37 and the energy absorbing spring 38, and contacts the track shoe, so as to set its limit, avoid the track shoe from being vibrated during the milling process, resulting in its position deviation and reducing the processing accuracy, thereby improving the track shoe. The stability of the track plate during processing is improved while the processing accuracy of the machine tool is improved; at the same time, when the track plate contacts the energy-absorbing square plate 39, the energy-absorbing rubber pad 40 on it also contacts the track plate, and the buffering performance brought by the energy-absorbing rubber pad 40 and the energy-absorbing spring 38 is used to reduce the shaking and vibration generated by the track plate when being processed by the milling cutter, further avoiding the track plate from shaking too much, which affects the processing accuracy and stability, and at the same time avoids the track plate from shaking too much, which causes serious wear and damage to the fixture, thereby improving the production quality and service life of the track plate.

[0024] The present invention also provides an excavator track shoe end milling method, comprising the following steps: S1. Install the milling cutter on the self-centering fixture 8, clamp the track shoe to be processed on the top of the base, and then control the positioning milling unit to perform milling on the track shoe; S2. Operate the double-action cleaning component to clean the debris or impurities adhering to the milling cutter to prevent affecting the machining accuracy and effect of the track shoe; S3. Use the sliding stop device to control the distance between the milling cutter and the track shoe according to the actual situation to avoid "knife collision" or overcutting.

[0025] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0026] 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. An excavator track shoe end milling machine, comprising a base, a multi-axis machine tool, and a track shoe; the multi-axis machine tool is mounted on top of the base; the track shoe is clamped on top of the base; and the characteristics are: The multi-axis machine tool is provided with a shaft body that can move toward or away from the base; the shaft body is provided with a positioning milling unit for milling the track shoe to form a flat surface, a specific angle bevel and a groove; The positioning milling unit comprises: Positioning round block, connected to the end point of the shaft; A U-shaped square seat is installed at the bottom of the positioning round block, with its opening facing the side wall of the multi-axis machine tool; a positioning cylinder is fixedly connected to the U-shaped square seat; The positioning block is connected to the positioning cylinder through and through, and the two are slidably matched; the positioning block is installed with a circular base; A self-centering fixture is rotatably connected to the circular base near the base; the self-centering fixture clamps a milling cutter; The positioning block is provided with a sliding stop device for adjusting the distance between the milling cutter and the track shoe in the initial position; the sliding stop device includes: The first base is installed on both sides of the positioning block; The circular base is provided with a double-action cleaning component for cleaning impurities and debris adhering to the milling cutter; the double-action cleaning component includes: The retaining rack is installed at the bottom of the positioning circle.

2. The excavator track shoe end milling machine according to claim 1, characterized in that: It includes a stop cylinder installed on the first base; the two stop cylinders are slidably connected to a stop horizontal plate, which is located on the side of the U-shaped square base away from the multi-axis machine tool; the stop horizontal plate is connected to a pull ring; The stop square groove is arranged on the side of the positioning cylinder close to the stop horizontal plate; a plurality of stop square grooves are arranged at equal distances; The stop block is installed on the side of the stop horizontal plate close to the U-shaped square seat; when the positioning block needs to be limited, the stop block passes through the U-shaped square seat and the positioning block and is connected to one of the stop square grooves.

3. The excavator track shoe end milling machine according to claim 2, characterized in that: The opposite sides of the two stop cylinders are provided with a number of equidistantly arranged tooth grooves; the end of the stop cylinder away from the first base is connected to the stop limit plate; a stop spring is sleeved on the stop cylinder; one end of the stop spring is fixedly connected to the stop limit plate, and the other end is fixedly connected to the stop horizontal plate; extended bases are installed on both sides of the stop horizontal plate; a positioning spring is sleeved on the positioning cylinder; one end of the positioning spring is fixedly connected to the inner wall of the U-shaped square seat, and the other end is fixedly connected to the positioning block.

4. The excavator track shoe end milling machine according to claim 1, characterized in that: It includes a limiting block; two limiting blocks are installed on both sides of the positioning circle; A limiting cylinder, fixedly connected to the top of the limiting block; The second base is mounted on the multi-axis machine tool; the second base is connected to the limiting cylinder, and the two are slidably matched; when the shaft drives the positioning block to approach or move away from the track shoe, the positioning block is limited and moved at the second base by the limiting cylinder on the limiting block; The limiting spring is sleeved on the limiting cylinder; one end of the limiting spring is fixedly connected to the second base, and the other end is connected to the limiting circular plate; the limiting circular plate is fixedly connected to the end of the limiting cylinder away from the limiting block.

5. The excavator track shoe end milling machine according to claim 4, characterized in that: The utility model comprises a liquid collection cylinder which is installed on a side of a circular base away from the base; a nozzle is installed on the liquid collection cylinder; an output end of the nozzle faces an end of the milling cutter away from the self-centering fixture.

6. The excavator track shoe end milling machine according to claim 3, characterized in that: The extended base is provided with a locking and anti-movement mechanism; the locking and anti-movement mechanism comprises a locking square column, which is installed on the side of the extended base away from the stop horizontal plate; the locking square column is connected to a locking limit plate at one end away from the extended base; The locking slider is connected to the locking square column, and the two are slidably matched; A locking spring is sleeved on the locking square column; one end of the locking spring is fixedly connected to the locking limit plate, and the other end is fixedly connected to the locking slider; signal patches are provided on the opposite surfaces of the locking slider and the extended base; when the locking spring is not deformed, the locking slider and the signal patches on the extended base are in contact.

7. The excavator track shoe end milling machine according to claim 6, characterized in that: It includes an L-shaped horizontal plate installed on the locking slider; a guide slide is connected to the side of the L-shaped horizontal plate close to the stop cylinder, which slides with the L-shaped horizontal plate; the guide slide is connected to a guide limit plate at one end away from the stop cylinder, and is connected to a locking tooth block at one end close to the stop cylinder; the tooth groove is located in the movement path of the locking tooth block, and when the stop horizontal plate does not need to move, the tooth groove is connected to the locking tooth block; The guide spring is sleeved on the guide slide column; one end of the guide spring is fixedly connected to the guide limit plate, and the other end is fixedly connected to the L-shaped horizontal plate.

8. The excavator track shoe end milling machine according to claim 1, characterized in that: The U-shaped square seat is provided with an energy dissipation and anti-deflection component; the energy dissipation and anti-deflection component includes a T-shaped base, which is fixedly installed on the side of the U-shaped square seat close to the base; the T-shaped base is provided with an energy absorbing cylinder; An energy absorbing column is slidably connected in the energy absorbing cylinder; An energy-absorbing spring is located in the energy-absorbing cylinder; one end of the energy-absorbing spring is fixedly connected to the inner bottom surface of the energy-absorbing cylinder, and the other end is fixedly connected to the energy-absorbing column; an energy-absorbing square plate is installed at one end of the energy-absorbing column close to the base; The energy-absorbing rubber pad is connected to the side of the energy-absorbing square plate close to the base; the track shoe is located in the moving path of the energy-absorbing rubber pad.

9. The excavator track shoe end milling machine according to claim 1, characterized in that: It includes a third base mounted on the circular base; A driving shaft is rotatably connected to the third base; a driving gear is mounted on one end of the driving shaft, and an active bevel gear is mounted on the other end; the driving gear is meshed with the retaining rack; A driving base is connected to the circular base; a reciprocating screw rod is installed on the driving base; The driven bevel gear is connected to the reciprocating screw rod; the driven bevel gear is meshed with the active bevel gear; The reciprocating block is threadedly connected to the reciprocating screw rod; a reciprocating slide is installed on the driving base; the reciprocating slide is connected to the reciprocating block through and the two are slidably matched; The reciprocating cleaning ring is installed on the reciprocating block and sleeved on the milling cutter; the reciprocating cleaning ring is equipped with a plurality of high-pressure nozzles, all facing the working end of the milling cutter.

10. A method for vertical milling of an excavator track shoe, using the excavator track shoe vertical milling machine according to claim 1, characterized in that: Including steps: S1. Install the milling cutter on the self-centering fixture, clamp the track shoe to be processed on the top of the base, and then control the positioning milling unit to mill the track shoe; S2. Operate the double-action cleaning component to clean the debris or impurities adhering to the milling cutter to prevent affecting the machining accuracy and effect of the track shoe; S3. Use the sliding stop device to control the distance between the milling cutter and the track shoe according to the actual situation to avoid "knife collision" or overcutting.

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