Numerical control grinding machine equipment

Abstract

The invention relates to the technical field of numerical control grinding machine machining, and discloses numerical control grinding machine equipment which comprises a machine body, a positioning structure and a driving mechanism, the positioning structure comprises a grinding wheel shaft, a sliding block connected to the grinding wheel shaft and a grinding tool used for grinding a hard sealing ball body, and the driving mechanism comprises a driving motor and a crane. An output shaft of the driving motor is connected with the grinding wheel shaft, the gantry crane is connected to the hard sealing ball body so as to move the hard sealing ball body into or out of the lathe bed, a channel hole allowing a valve rod to penetrate through is formed in the hard sealing ball body, the grinding wheel shaft extends into the channel hole during machining, and the diameter of the grinding wheel shaft is smaller than the width of the channel hole. A transmission rod is detachably arranged on the grinding wheel shaft, and the maximum distance between the grinding wheel shaft and the transmission rod is not smaller than the width of the channel hole. According to the grinding wheel, the transmission rod is detachably arranged on the grinding wheel shaft, so that when hard sealing balls of different sizes are machined, only transmission rods of different sizes need to be replaced, and the effect of improving the machining efficiency of the hard sealing balls is achieved.

Description

Technical Field

[0001] This application relates to the technical field of numerical control grinding machine processing, and in particular to a numerical control grinding machine device. Background Technique

[0002] A numerical control grinding machine device is a machine tool that realizes high-precision grinding processing through a computer numerical control system. It is mainly used for precision surface processing of metal or non-metal workpieces. Typical applications include grinding and forming of parts such as hard-sealed spheres and valve seats in ball valves. In related technologies, a numerical control grinding machine device includes a bed body, a positioning structure, and a driving mechanism. The positioning structure includes a grinding wheel shaft, a slider connected to the grinding wheel shaft, a pushing cylinder connected to the slider, and a grinding tool for grinding a hard-sealed sphere. The driving mechanism includes a driving motor and a crane. The output shaft of the driving motor is connected to the grinding wheel shaft. The crane is connected to the hard-sealed sphere to move the hard-sealed sphere into or out of the bed body. A channel hole for the valve stem to pass through is provided on the hard-sealed sphere. During processing, the grinding wheel shaft extends into the channel hole. The width of the grinding wheel shaft is greater than the width of the channel hole. The hard-sealed sphere is rotated on the grinding tool by the rotation of the grinding wheel shaft, so as to grind the hard-sealed sphere.

[0003] However, when the above-mentioned numerical control grinding machine device processes hard-sealed spheres of different sizes, since the sizes of the channel holes of hard-sealed spheres of different sizes are different, the entire grinding wheel shaft needs to be removed and then replaced with a grinding wheel shaft of a different size. However, the grinding wheel shaft is heavy, resulting in a complex disassembly and replacement process, long time consumption, and thus low processing efficiency of the hard-sealed sphere. Therefore, it needs to be improved. Summary of the Invention

[0004] In order to improve the processing efficiency of hard-sealed spheres, this application provides a numerical control grinding machine device.

[0005] The numerical control grinding machine device provided by this application adopts the following technical solution: A numerical control grinding machine device includes a bed body, a positioning structure, and a driving mechanism. The positioning structure includes a grinding wheel shaft, a slider connected to the grinding wheel shaft, and a grinding tool for grinding a hard-sealed sphere. The driving mechanism includes a driving motor and a crane. The output shaft of the driving motor is connected to the grinding wheel shaft. The crane is connected to the hard-sealed sphere to move the hard-sealed sphere into or out of the bed body. A channel hole for the valve stem to pass through is provided on the hard-sealed sphere. During processing, the grinding wheel shaft extends into the channel hole. The diameter of the grinding wheel shaft is smaller than the width of the channel hole. A transmission rod is detachably arranged on the grinding wheel shaft, and the maximum distance between the grinding wheel shaft and the transmission rod is not less than the width of the channel hole.

[0006] By adopting the above technical solution, when it is necessary to grind hard-sealed spheres of different sizes, the hard-sealed sphere can be lifted by a crane first, and then the slider is moved away from the hard-sealed sphere by the pushing cylinder, so that the grinding wheel shaft moves out of the channel hole. Then, the original transmission rod is removed from the grinding wheel shaft, and a transmission rod matching the size of the hard-sealed sphere to be processed is installed on the grinding wheel shaft, as long as the maximum distance between the grinding wheel shaft and the transmission rod is not less than the width of the channel hole. The grinding wheel shaft and the transmission rod will jointly drive the hard-sealed sphere to rotate. Compared with replacing the whole grinding wheel shaft, only the transmission rod needs to be replaced, which is convenient to operate and replace, reduces the time required to replace the whole grinding wheel shaft, and thus improves the processing efficiency of the hard-sealed sphere.

[0007] Optionally, the transmission rod and the grinding wheel shaft are connected by bolts.

[0008] By adopting the above technical solution, when it is necessary to disassemble the transmission rod from the grinding wheel shaft, only the bolts need to be loosened, which is convenient to replace transmission rods of different sizes, and the connection strength between the transmission rod and the grinding wheel shaft is high, further improving the processing efficiency of the hard-sealed sphere.

[0009] Optionally, a lead screw is rotatably connected to the slider, a rotating motor is provided on the bed body, an output shaft of the rotating motor is connected to the lead screw, and when the lead screw rotates, the slider moves in a direction close to or away from the hard-sealed sphere.

[0010] By adopting the above technical solution, when it is necessary to adjust the position of the grinding wheel shaft, the rotating motor can be turned on. The output shaft of the rotating motor will drive the lead screw to rotate, thereby driving the slider to move in a direction close to or away from the hard-sealed sphere, and then moving the grinding wheel shaft in a direction close to or away from the hard-sealed sphere, so as to fix hard-sealed spheres of different sizes. Compared with driving the slider to move by a pushing cylinder, when the lead screw rotates one circle, it can drive the slider to move a certain distance, and the lead screw can adjust the position of the slider more precisely, thus facilitating the adjustment of the position of the grinding wheel shaft.

[0011] Optionally, the bed body includes a base and a door panel slidably arranged on the base. A cleaning device is provided on the bed body. The cleaning device includes a magnetic plate arranged on the base, a cleaning plate slidably arranged on the magnetic plate, and collection boxes arranged on both sides of the magnetic plate. A plurality of filter holes are formed in the magnetic plate. The cleaning plate includes two cleaning pieces arranged on both sides of the magnetic plate, and the two cleaning pieces are closely attached to the magnetic plate. The cleaning plate is detachably connected to the door panel, and the collection boxes are arranged on both sides of the cleaning plate along the sliding direction of the magnetic plate.

[0012] By adopting the above technical solution, when the coolant flows through the magnetic plate, the iron filings in the coolant will be adsorbed on the magnetic plate, thereby filtering out the iron filings in the coolant. The filtered coolant will flow into the return hole along the filter hole to reuse the coolant. When the door panel is opened, the cleaning plate will slide on the magnetic plate along with the door panel, thereby scraping the iron filings adsorbed on the magnetic plate into the collection box to clean the magnetic plate, facilitating the adsorption of iron filings during the next processing.

[0013] Optionally, the collection box includes an outer box and an inner box with an open upper side. The inner box is arranged in the outer box, and an extraction hole for the inner box to be taken out is formed on the side wall of the outer box close to the door panel.

[0014] By adopting the above technical solution, when the collection box is full of iron filings, the inner box can be taken out of the outer box, and then the iron filings can be poured out of the inner box to clean the inner box. Finally, the cleaned inner box is placed back in the outer box for the next use.

[0015] Optionally, a leakage prevention device is provided on the base. A receiving groove is formed on the base, and a coolant return hole is formed on the bottom wall of the receiving groove. The leakage prevention device includes a rotating rod rotatably arranged in the receiving groove, a rotating gear rotatably arranged in the receiving groove, a first transmission gear and a second transmission gear rotatably arranged on the base, and a stop block rotatably arranged on the base. A positioning torsion spring is provided on the rotating shaft of the stop block, and the positioning torsion spring has a tendency to drive the stop block to move away from the door panel. When the rotating rod rotates, it abuts against the rotating gear, and a return torsion spring is provided on the rotating rod. The return torsion spring can drive the rotating rod to rotate away from the rotating gear. A transmission chain is commonly engaged with the rotating gear and the first transmission gear. A trigger rod is connected between the first transmission gear and the second transmission gear. A trigger block is provided on the trigger rod, and the trigger block abuts against the stop block. The trigger block can drive the stop block to rotate and abut against the door panel. A stop groove for the stop block to extend into is formed on the door panel.

[0016] By adopting the above technical solution, when the coolant flows through the receiving groove, the coolant will drive the rotating rod to rotate. The rotating rod will drive the rotating gear to rotate, so that the rotating gear drives the transmission chain to rotate, and then the transmission chain drives the first transmission gear and the second transmission gear to rotate, and then drives the trigger rod and the trigger block to rotate. When the trigger block rotates, it will push the stop block to rotate into the stop groove, thereby limiting the door panel, making it difficult to open the door panel, so as to prompt the staff that the coolant on the base has not all flowed into the return hole, making it difficult for the coolant to flow out of the grinding machine equipment due to the opening of the door panel, causing secondary pollution, and saving the time and labor required for cleaning the coolant.

[0017] Optionally, the cleaning plate further includes a mounting plate, the cleaning sheet is disposed on the mounting plate, a sliding groove is formed in the mounting plate, a sliding rod is slidably disposed in the sliding groove, a mounting groove for mounting a first transmission gear, a second transmission gear and a stop block is formed in the base, a movable rod is slidably disposed on the groove wall of the mounting groove, a connecting rod is provided on the trigger block, the connecting rod abuts against the lower side of the movable rod, when the trigger rod rotates, it can drive the trigger block and the connecting rod to move towards the movable rod, a through hole for the movable rod to extend into the sliding groove is formed in the side wall of the sliding groove, a guiding inclined surface is provided on the sliding rod, the guiding inclined surface inclines towards the direction in which the movable rod extends into the sliding groove, and a limiting groove for the sliding rod to extend into is formed in the door panel.

[0018] By adopting the above technical solution, when the coolant flows through the receiving groove, the rotating rod will drive the rotating gear to rotate, and finally the trigger rod drives the trigger block and the connecting rod to push the movable rod towards the mounting plate, so that the movable rod extends into the sliding groove, and the movable rod abuts against the guiding inclined surface of the sliding rod. During the process of the movable rod extending into the sliding groove, the sliding rod is pushed towards the door panel, so that the sliding rod extends into the limiting groove. Then when the door panel is opened, the cleaning plate will slide synchronously with the door panel to clean the magnetic plate. When the grinding machine equipment stops running and there is no coolant flowing through the base, it indicates that there is no iron filings adsorbed on the magnetic plate, and at this time, there is no need to clean the magnetic plate.

[0019] When there is no coolant flowing through the base, the rotating rod will not drive the rotating gear to rotate, so the sliding rod will not extend into the limiting groove either. Thus, when the door panel is opened, the cleaning plate will not slide with the door panel, reducing the possibility of the cleaning plate causing additional wear to the magnetic plate when there is no need to clean the magnetic plate, and prolonging the service life of the magnetic plate. At the same time, there is no need to additionally provide a driving device for driving the cleaning plate to slide, reducing the driving source for driving the cleaning plate to slide, which is beneficial to saving the energy consumption of the grinding machine equipment.

[0020] Optionally, a fixing device is provided on the base, the fixing device is disposed on one side of the magnetic plate close to the movable rod, the fixing device includes a fixing table and a fixing spring disposed on the fixing table, the cleaning plate is disposed on the fixing spring, the telescopic direction of the fixing spring is consistent with the sliding direction of the cleaning plate, a magnetic attraction block is provided on the collecting box, and a reset groove for the magnetic attraction block to extend into the sliding groove is formed in the mounting plate. When the door panel is opened, the magnetic attraction block extends into the sliding groove.

[0021] By adopting the above technical solution, when the door panel is opened, the cleaning plate has cleaned the magnetic plate. At this time, the magnetic attraction block will extend into the sliding groove along the reset groove and generate an adsorption force on the sliding rod, causing the sliding rod to slide out of the limit groove and move into the sliding groove. Then, the fixing spring will drive the cleaning plate to move towards the direction close to the fixed table, so that the cleaning plate returns to the initial position, facilitating the movement with the door panel when the door panel is opened next time to clean the magnetic plate, or keeping the initial position when there is no need to clean the magnetic plate.

[0022] In summary, the present application includes at least one of the following beneficial technical effects: 1. By detachably arranging a transmission rod on the grinding wheel shaft, when processing hard-sealed spheres of different sizes, there is no need to replace the entire grinding wheel shaft, and only the transmission rod needs to be replaced, which is simple to operate and improves the processing efficiency; 2. By driving the slider to slide through the lead screw and the rotating motor, the position of the grinding wheel shaft is changed. Compared with the one-stage movement of driving the slider by a pushing cylinder, more precise control of the slider position is achieved; 3. A cleaning device and a leak-proof device are arranged on the base and the door panel, which are convenient for filtering iron filings in the coolant, and at the same time make the coolant not easy to flow out of the bed body, which is beneficial to maintaining the cleanliness of the working environment of the grinding machine equipment. Description of the Drawings

[0023] Figure 1 is the overall structure diagram of Embodiment 1 of the present application.

[0024] Figure 2 is the cross-sectional structure schematic diagram of Embodiment 1 of the present application.

[0025] Figure 3 is Figure 2 the enlarged view of part A in

[0026] Figure 4 is the cross-sectional structure schematic diagram of Embodiment 2 of the present application.

[0027] Figure 5 is the partial cross-sectional structure schematic diagram for showing the rotating gear in Embodiment 2 of the present application.

[0028] Figure 6 is the partial structure schematic diagram for showing the leak-proof device after hiding the base in Embodiment 2 of the present application.

[0029] Figure 7 is the partial cross-sectional structure schematic diagram for showing the sliding rod in Embodiment 2 of the present application.

[0030] Description of the Reference Numerals: 1. Bed body; 11. Base; 111. Accommodating groove; 112. Installation groove; 113. Return hole; 12. Door panel; 121. Limit groove; 122. Stopping groove; 2. Positioning structure; 21. Grinding wheel shaft; 211. Transmission rod; 22. Slide block; 24. Lead screw; 25. Rotating motor; 3. Driving mechanism; 31. Driving motor; 4. Hard seal sphere; 41. Channel hole; 5. Leakage prevention device; 51. Rotating rod; 511. Reset torsion spring; 52. Rotating gear; 53. First transmission gear; 54. Second transmission gear; 55. Stopping block; 551. Guiding inclined surface; 552. Positioning torsion spring; 56. Transmission chain; 57. Trigger rod; 58. Trigger block; 59. Connecting rod; 6. Cleaning device; 61. Magnetic plate; 611. Filter hole; 62. Cleaning plate; 621. Mounting plate; 622. Cleaning piece; 623. Sliding groove; 624. Slide bar; 625. Guiding inclined surface; 626. Movable rod; 627. Through hole; 628. Reset groove; 63. Collection box; 631. Outer box; 632. Inner box; 633. Taking-out hole; 634. Magnetic attracting block; 7. Fixing device; 71. Fixing table; 72. Fixing spring. Detailed implementation manners

[0031] The following further elaborates on this application in conjunction with the attached Figure 1-7 drawings.

[0032] An embodiment of this application discloses a numerical control grinding machine device.

[0033] Embodiment 1 Referring to Figure 1 and Figure 2 a numerical control grinding machine device includes a bed body 1, a positioning structure 2 and a driving mechanism 3. The bed body 1 includes a base 11 and a door panel 12 slidably arranged on the base 11. The door panel 12 slides on the base 11 to open or close the grinding machine device. The positioning structure 2 includes a grinding wheel shaft 21, a slide block 22 connected to the grinding wheel shaft 21, and a grinding tool (not shown in the figure) for grinding the hard seal sphere 4. One grinding wheel shaft 21 is arranged on each side of the hard seal sphere 4, and a slide block 22 is connected to each grinding wheel shaft 21. A lead screw 24 is rotatably connected to the slide block 22. A rotating motor 25 is provided on the bed body 1, and the output shaft of the rotating motor 25 is connected to the lead screw 24. Therefore, when the lead screw 24 rotates, the slide block 22 will move in the direction of approaching or departing from the hard seal sphere 4, so as to adjust the distance between the two grinding wheel shafts 21 to position hard seal spheres 4 of different sizes.

[0034] Referring to Figure 1 and Figure 2, the driving mechanism 3 includes a driving motor 31 and a hoist (not shown in the figure). The output shaft of the driving motor 31 is connected to the grinding wheel shaft 21 to drive the grinding wheel shaft 21 to rotate. The hoist is connected to the hard seal sphere 4 to move the hard seal sphere 4 into or out of the bed 1 in the vertical direction. A channel hole 41 for the valve stem to pass through is provided on the hard seal sphere 4. The diameter of the grinding wheel shaft 21 is smaller than the width of the channel hole 41, and a transmission rod 211 is detachably arranged on the grinding wheel shaft 21. In this embodiment, the above detachable connection method is preferably a bolt connection. In other cases, other detachable connection methods can also be selected according to customer requirements.

[0035] Refer to Figure 1 , Figure 2 and Figure 3 , during processing, both the grinding wheel shaft 21 and the transmission rod 211 extend into the channel hole 41. Since the maximum distance between the grinding wheel shaft 21 and the transmission rod 211 is not less than the width of the channel hole 41, the grinding wheel shaft 21 and the transmission rod 211 can drive the hard seal sphere 4 to rotate when rotating, so as to grind and process the hard seal sphere 4. The grinding machine equipment in this embodiment is equipped with a plurality of transmission rods 211 of different sizes, which respectively correspond to the channel holes 41 of hard seal spheres 4 of different sizes.

[0036] The implementation principle of a numerically controlled grinding machine equipment in an embodiment of the present application is as follows: when it is necessary to process hard seal spheres 4 of different sizes, only the transmission rod 211 of the corresponding size needs to be bolted to the grinding wheel shaft 21, and the maximum distance between the grinding wheel shaft 21 and the transmission rod 211 can be adjusted. Compared with replacing the entire grinding wheel shaft 21, the operation is simple and the processing efficiency is improved.

[0037] Embodiment 2 Refer to Figure 4 , Figure 5 and Figure 6 , the difference between this embodiment and Embodiment 1 is that a leak prevention device 5 is provided on the base 11. A receiving groove 111 and an installation groove 112 for receiving the leak prevention device 5 are provided on the base 11. The receiving groove 111 and the installation groove 112 are communicated. A return hole 113 is provided on the bottom wall of the receiving groove 111. The return hole 113 is used for the coolant to flow back to the circulation pipeline for the next cooling. The leak prevention device 5 includes a rotating rod 51 rotatably arranged in the receiving groove 111, a rotating gear 52 rotatably arranged in the receiving groove 111, a first transmission gear 53 and a second transmission gear 54 rotatably arranged on the base 11, and a stop block 55 rotatably arranged on the base 11. The above first transmission gear 53, second transmission gear 54 and stop block 55 are all arranged in the installation groove 112, and a guiding inclined surface 551 is provided on the stop block 55.

[0038] Refer to Figure 6, a positioning torsion spring 552 is provided on the rotating shaft of the stop block 55, and the positioning torsion spring 552 has a tendency to drive the stop block 55 to move away from the door panel 12. A return torsion spring 511 is provided on the rotating rod 51. When there is coolant flowing on the base 11, the rotating rod 51 will rotate and drive the rotating gear 52 to rotate a certain angle. When there is no coolant flowing on the base 11, the rotating rod 51 will rotate away from the rotating gear 52 under the action of the return torsion spring 511.

[0039] Refer to Figure 6 , a transmission chain 56 is jointly engaged on the rotating gear 52 and the first transmission gear 53. A trigger rod 57 is connected between the first transmission gear 53 and the second transmission gear 54. A trigger block 58 is provided on the trigger rod 57, and the trigger block 58 abuts against the stop block 55.

[0040] Refer to Figure 4 , a cleaning device 6 is provided on the bed body 1. The cleaning device 6 includes a magnetic plate 61 provided on the base 11, a cleaning plate 62 slidably provided on the magnetic plate 61, and collection boxes 63 provided on both sides of the magnetic plate 61. A number of filter holes 611 are provided on the magnetic plate 61. The cleaning plate 62 includes a mounting plate 621 and two cleaning pieces 622 provided on both sides of the magnetic plate 61. The cleaning pieces 622 are provided on the mounting plate 621, and the two cleaning pieces 622 are closely attached to the magnetic plate 61. The cleaning plate 62 is detachably connected to the door panel 12.

[0041] Refer to Figure 4 , the collection boxes 63 are provided on both sides of the cleaning plate 62 along the sliding direction of the magnetic plate 61. The collection box 63 includes an outer box 631 and an inner box 632 with an open upper side. The inner box 632 is provided in the outer box 631. An extraction hole 633 for the inner box 632 to be removed is provided on the side wall of the outer box 631 close to the door panel 12. When the inner box 632 is full of iron filings, the inner box 632 can be taken out of the outer box 631 to pour out the iron filings for the next use. The outer wall of the inner box 632 is closely attached to the inner wall of the outer box 631, so that when the grinding machine equipment is running, the inner box 632 is not easily separated from the outer box 631. And a drain hole is provided on the side wall of the inner box 632 close to the door panel 12. The drain hole can allow the coolant to flow out, and the inner box 632 has magnetism and can adsorb the iron filings on the inner box 632, so that when the grinding machine equipment is running, it is not easy to accumulate liquid in the inner box 632, and the iron filings are not easily overflowed with the liquid, which is convenient for collecting iron filings.

[0042] Refer to Figure 4 , Figure 6 and Figure 7, a sliding groove 623 is formed in the mounting plate 621, a sliding rod 624 is slidably arranged in the sliding groove 623, a guiding inclined surface 625 is provided on the sliding rod 624, a movable rod 626 is slidably arranged on the groove wall of the mounting groove 112, a connecting rod 59 which abuts against the lower part of the movable rod 626 is provided on the trigger block 58, a through hole 627 for the movable rod 626 to extend into the sliding groove 623 is formed in the side wall of the sliding groove 623, the guiding inclined surface 625 inclines towards the direction in which the movable rod 626 extends into the sliding groove 623, and a limiting groove 121 for the sliding rod 624 to extend into is formed in the door panel 12.

[0043] Refer to Figure 4 , a fixing device 7 is provided on the base 11, the fixing device 7 is arranged on one side of the magnetic plate 61 close to the movable rod 626, the fixing device 7 includes a fixing table 71 and a fixing spring 72 arranged on the fixing table 71, the cleaning plate 62 is arranged on the fixing spring 72, the telescopic direction of the fixing spring 72 is consistent with the sliding direction of the cleaning plate 62, a magnetic attraction block 634 is provided on the collecting box 63, and a reset groove 628 for the magnetic attraction block 634 to extend into the sliding groove 623 is formed in the mounting plate 621.

[0044] Refer to Figure 4 , Figure 6 and Figure 7 , when there is coolant flowing on the base 11, the trigger rod 57 will drive the trigger block 58 and the connecting rod 59 to move towards the direction close to the movable rod 626, so that the movable rod 626 extends into the sliding groove 623, the movable rod 626 abuts against the guiding inclined surface 625 of the sliding rod 624, thereby pushing the sliding rod 624 into the limiting groove 121, and at this time the sliding rod 624 is located in both the door panel 12 and the mounting plate 621 simultaneously.

[0045] Refer to Figure 6 and Figure 7 , when there is no coolant flowing on the base 11, the door panel 12 can be opened, and at this time the trigger block 58 no longer rotates, so the connecting rod 59 no longer pushes the movable rod 626 to extend into the sliding groove 623, and the movable rod 626 moves away from the mounting plate 621 under the action of its own gravity, so that the mounting plate 621 can slide along with the door panel 12.

[0046] Refer to Figure 4 and Figure 7, when the door panel 12 slides open, it can drive the cleaning plate 62 to slide on the magnetic plate 61, thereby cleaning the magnetic plate 61. After the door panel 12 is opened, the cleaning plate 62 moves to a position where it abuts against the magnetic attraction block 634, causing the magnetic attraction block 634 to extend into the sliding groove 623 and suck out the sliding rod 624 from the limiting groove 121, so that the cleaning plate 62 is separated from the door panel 12. Then, under the action of the fixed spring 72, the cleaning plate 62 moves towards the direction close to the fixed platform 71 to reset the cleaning plate 62. So that when the door panel 12 is opened next time, it can slide with the door panel 12 for cleaning, and at the same time scrape the remaining iron filings on the magnetic plate 61 into another collection box 63. The sliding rod 624 in this embodiment is made of a magnetic material and can generate an adsorption force with the magnetic attraction block 634. Since the magnetic plate 61 and the sliding rod 624 are separated by the mounting plate 621, the adsorption force of the magnetic plate 61 on the sliding rod 624 is relatively weak. Therefore, the magnetic plate 61 will not adsorb and move the sliding rod 624 out of the limiting groove 121.

[0047] The implementation principle of a numerical control grinding machine device in an embodiment of the present application is as follows: When there is coolant flowing in the receiving groove 111, the rotating rod 51 will successively drive the rotating gear 52, the first transmission gear 53, the second transmission gear 54, the trigger rod 57, and the trigger block 58 to rotate. When the trigger block 58 rotates, it moves along the guiding inclined surface 551 on the stop block 55, thereby pushing the stop block 55 to rotate towards the direction close to the door panel 12. A stop groove 122 for the stop block 55 to extend into is provided on the door panel 12. When there is coolant flowing through the receiving groove 111, the stop block 55 extends into the stop groove 122, thereby preventing the door panel 12 from sliding relative to the base 11, making it difficult for the door panel 12 to be opened and the coolant to flow out of the grinding machine device to pollute the ground. After all the coolant flows into the return hole 113 and there is no more coolant flowing on the base 11, the rotating rod 51 rotates away from the rotating gear 52 under the action of the reset torsion spring 511, and the stop block 55 rotates away from the door panel 12 under the action of the positioning torsion spring 552. At this time, the stop block 55 no longer limits the door panel 12, and the door panel 12 can be opened.

[0048] When there is coolant flowing in the accommodation groove 111, the rotation of the trigger block 58 will drive the connecting rod 59 and the movable rod 626 to move, so that the movable rod 626 extends into the sliding groove 623 and the sliding rod 624 extends into the limiting groove 121. After all the coolant flows into the return hole 113, the movable rod 626 will move out of the sliding groove 623 due to its own gravity. Thus, when the door plate 12 is opened, it can drive the cleaning plate 62 to slide and clean the magnetic plate 61. After the door plate 12 is opened, the magnetic attraction block 634 extends into the sliding groove 623 to reset the sliding rod 624, thereby resetting the cleaning plate 62 for the next use. With this setting, compared with fixedly connecting the cleaning plate 62 to the door plate 12, when the grinding machine equipment is not running, there is no coolant flowing on the base 11 and no debris is adsorbed on the magnetic plate 61, so there is no need to clean the magnetic plate 61. At this time, the sliding rod 624 will not extend into the limiting groove 121, and the cleaning plate 62 will not slide with the door plate 12, reducing the number of times the cleaning plate 62 slides on the magnetic plate 61 and wearing the magnetic plate 61, extending the service life of the magnetic plate 61, and at the same time reducing the number of drive sources, which is beneficial to energy conservation.

[0049] The above are all the preferred embodiments of this application, and the protection scope of this application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. A CNC grinding machine device, comprising a bed (1), a positioning structure (2) and a driving mechanism (3), wherein the positioning structure (2) comprises a grinding wheel shaft (21), a slider (22) connected to the grinding wheel shaft (21) and a grinding tool for grinding a hard sealing ball (4), the driving mechanism (3) comprises a driving motor (31) and a crane, the output shaft of the driving motor (31) is connected to the grinding wheel shaft (21), the crane is connected to the hard sealing ball (4) to move the hard sealing ball (4) into or out of the bed (1), the hard sealing ball (4) is provided with a channel hole (41) for a valve stem to pass through, and the grinding wheel shaft (21) extends into the channel hole (41) during processing, characterized in that: The diameter of the grinding wheel shaft (21) is smaller than the width of the channel hole (41); a transmission rod (211) is detachably provided on the grinding wheel shaft (21); and the maximum distance between the grinding wheel shaft (21) and the transmission rod (211) is not less than the width of the channel hole (41).

2. A CNC grinding machine according to claim 1, characterized in that: The transmission rod (211) is connected to the grinding wheel shaft (21) via bolts.

3. A CNC grinding machine according to claim 1, characterized in that: The slider (22) is rotatably connected to a screw rod (24), the bed (1) is provided with a rotary motor (25), the output shaft of the rotary motor (25) is connected to the screw rod (24), and when the screw rod (24) rotates, the slider (22) moves in a direction close to or away from the hard sealing ball (4).

4. A CNC grinding machine according to claim 1, characterized in that: The bed body (1) comprises a base (11) and a door panel (12) slidably arranged on the base (11); a cleaning device (6) is arranged on the bed body (1); the cleaning device (6) comprises a magnetic plate (61) arranged on the base (11); a cleaning plate (62) slidably arranged on the magnetic plate (61); and a collecting box (63) arranged on both sides of the magnetic plate (61); a plurality of filter holes (611) are provided on the magnetic plate (61); the cleaning plate (62) comprises two cleaning sheets (622) arranged on both sides of the magnetic plate (61); the two cleaning sheets (622) are tightly fitted with the magnetic plate (61); the cleaning plate (62) is detachably connected to the door panel (12); and the collecting box (63) is arranged on both sides of the cleaning plate (62) along the sliding direction of the magnetic plate (61).

5. A CNC grinding machine according to claim 4, characterized in that: The collection box (63) comprises an outer box (631) and an inner box (632) with an upper opening, wherein the inner box (632) is arranged in the outer box (631), and a removal hole (633) for removing the inner box (632) is provided on a side wall of the outer box (631) close to the door panel (12).

6. A CNC grinding machine according to claim 5, characterized in that: The base (11) is provided with a leak-proof device (5), the base (11) is provided with a receiving groove (111), the bottom wall of the receiving groove (111) is provided with a coolant return hole (113), the leak-proof device (5) comprises a rotating rod (51) rotatably arranged in the receiving groove (111), a rotating gear (52) rotatably arranged in the receiving groove (111), a first transmission gear (53) and a second transmission gear (54) rotatably arranged on the base (11), and a stop block (55) rotatably arranged on the base (11), a rotation shaft of the stop block (55) is provided with a positioning torsion spring (552), the positioning torsion spring (552) has a tendency to drive the stop block (55) to move in a direction away from the door panel (12), and the rotating rod (51) is provided with a positioning torsion spring (552). ) is in contact with the rotating gear (52), and a reset torsion spring (511) is provided on the rotating rod (51), and the reset torsion spring (511) can drive the rotating rod (51) to rotate in a direction away from the rotating gear (52), and a transmission chain (56) is meshed on the rotating gear (52) and the first transmission gear (53), and a trigger rod (57) is connected between the first transmission gear (53) and the second transmission gear (54), and a trigger block (58) is provided on the trigger rod (57), and the trigger block (58) is in contact with the stop block (55), and the trigger block (58) can drive the stop block (55) to rotate and abut against the door panel (12), and a stop groove (122) for the stop block (55) to extend into is provided on the door panel (12).

7. A CNC grinding machine according to claim 6, characterized in that: The cleaning plate (62) further comprises a mounting plate (621), the cleaning sheet (622) being arranged on the mounting plate (621), the mounting plate (621) being provided with a sliding groove (623), a sliding rod (624) being slidably arranged in the sliding groove (623), the base (11) being provided with a mounting groove (112) for mounting a first transmission gear (53), a second transmission gear (54) and a stop block (55), a movable rod (626) being slidably arranged on the groove wall of the mounting groove (112), the trigger block (58) being provided with a connecting rod (59), the connecting rod (59 ) is in contact with the bottom of the movable rod (626); when the trigger rod (57) rotates, it can drive the trigger block (58) and the connecting rod (59) to move in the direction close to the movable rod (626); a through hole (627) for the movable rod (626) to extend into the sliding groove (623) is provided on the side wall of the sliding groove (623); a guiding inclined surface (625) is provided on the sliding rod (624); the guiding inclined surface (625) is inclined in the direction in which the movable rod (626) extends into the sliding groove (623); and a limiting groove (121) for the sliding rod (624) to extend into is provided on the door panel (12).

8. A CNC grinding machine according to claim 7, characterized in that: The base (11) is provided with a fixing device (7), and the fixing device (7) is arranged on a side of the magnetic plate (61) close to the movable rod (626). The fixing device (7) includes a fixing platform (71) and a fixing spring (72) arranged on the fixing platform (71). The cleaning plate (62) is arranged on the fixing spring (72), and the extension direction of the fixing spring (72) is consistent with the sliding direction of the cleaning plate (62). The collecting box (63) is provided with a magnetic block (634), and the mounting plate (621) is provided with a reset groove (628) for allowing the magnetic block (634) to extend into the sliding groove (623). When the door panel (12) is opened, the magnetic block (634) extends into the sliding groove (623).

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