A bearing grinding wheel dressing apparatus and a dressing control method thereof

Abstract

The application relates to the technical field of processing equipment, and provides a bearing grinding wheel trimming device which comprises a workbench, a feeding mechanism, a feeding mechanism, a fixing mechanism and a trimming mechanism; the feeding mechanism comprises a driving piece, a blanking plate, a transmission mechanism and a feeding table; the driving piece is connected with the blanking plate to drive the blanking plate to move and dislodge the grinding wheel on the fixing mechanism to separate the grinding wheel from the fixing mechanism; the transmission mechanism can drive the feeding table to move when the blanking plate moves, so that the feeding table moves back and forth between the feeding mechanism and the fixing mechanism to perform a feeding work, and the grinding wheel separated from the fixing mechanism can be pushed into a blanking groove on the workbench when the feeding table moves; the application can realize continuous and automatic trimming work of the grinding wheel, and the trimming efficiency is high.

Description

Technical Field

[0001] This invention relates to the field of processing equipment technology, and in particular to a bearing grinding wheel dressing device and its dressing control method. Background Technology

[0002] After long-term use, the abrasive grains on the bearing grinding wheel gradually become blunt due to wear or develop irregular deformations such as edge depressions, leading to problems such as decreased cutting efficiency and increased frictional heat. It is necessary to dress the grinding wheel with dressing equipment to remove the passivated surface layer and ensure high-precision machining of the bearing.

[0003] CN218254604U discloses a grinding wheel dresser for a grinding machine, comprising: a lifting support mechanism, a dressing mechanism mounted on the top of the lifting support mechanism, and a base and a hydraulic rod, wherein the entire dresser is installed in a suitable position on the grinding machine by means of fixing bolts and mounting holes on the base, and the height of the dressing mechanism is adjusted by activating the hydraulic rod according to the height of the grinding wheel.

[0004] CN219275560U discloses a multi-wheel dressing device adapted to a composite grinding machine, comprising a drive cylinder, a gear and rack mechanism, a buffer and damping cylinder, and a diamond pen swing arm mechanism. The drive cylinder, gear and rack mechanism, and buffer and damping cylinder are arranged sequentially from bottom to top. The piston rod of the drive cylinder, the rack of the gear and rack mechanism, and the piston rod of the buffer and damping cylinder are all vertically arranged and coaxially connected together in sequence. The swing arm side shaft end of the gear shaft of the gear and rack mechanism is fixedly connected to the inner end of the swing arm of the diamond swing arm mechanism. The extension direction of the swing arm is perpendicular to the extension direction of the gear shaft. Its outer end is provided with a diamond pen holder, on which one or more diamond pens are mounted. The multiple diamond pens are different diamond pens. The diamond pen holder is provided with a diamond pen insertion hole, and the diamond pens are inserted into the corresponding diamond pen insertion hole.

[0005] CN110315432B discloses a dressing device for centerless external cylindrical forming grinding wheels, including a main body, a rotary handle, a rotating shaft, and a dresser. One side of the main body is embedded in the rotary handle, and the other side of the main body is embedded in the rotating shaft. The dresser is embedded in one side of the bearing. The dresser includes a dressing head, a negative pressure ring, a squeegee, and a collecting plate. The dressing head is fixedly connected to the top of the dresser. The bearing of the dressing head is embedded in the negative pressure ring. The dresser has a squeegee inside and a collecting plate inside.

[0006] In existing technologies, bearing grinding wheel dressing equipment still requires manual assistance during operation, such as manual loading and unloading, making it difficult to achieve full automation and resulting in low dressing efficiency. Furthermore, the current method of combining a negative pressure mechanism with the dressing head to clean the dust generated during the dressing process requires drilling holes and other processing on the dressing head, which reduces the service life of the dressing head and also affects the accuracy of grinding wheel dressing to some extent. Summary of the Invention

[0007] This invention provides a bearing grinding wheel dressing device to solve the problems mentioned in the background art.

[0008] In view of this, the present invention aims to provide a bearing grinding wheel dressing device. In the present invention, the bearing grinding wheel dressing device includes a worktable and a feeding mechanism, a conveying mechanism, a fixing mechanism and a dressing mechanism disposed on the worktable; the conveying mechanism can drive the grinding wheel on the feeding mechanism to the fixing mechanism, the fixing mechanism is used to fix the grinding wheel and drive the grinding wheel to rotate, and the dressing mechanism performs dressing work on the grinding wheel on the fixing mechanism.

[0009] The feeding mechanism includes a driving component, a blanking plate, a transmission mechanism, and a feeding table. The driving component is connected to the blanking plate and can drive the blanking plate to move and move the grinding wheel on the fixing mechanism to disengage from the fixing mechanism. The transmission mechanism can drive the feeding table to move when the blanking plate moves, so that the feeding table can move back and forth between the feeding mechanism and the fixing mechanism to perform feeding work. When the feeding table moves, it can push the grinding wheel that has disengaged from the fixing mechanism into the blanking groove on the worktable.

[0010] This invention connects the entire grinding wheel dressing process by setting up a feeding mechanism, a fixing mechanism, and a dressing mechanism. The feeding mechanism simultaneously realizes the unloading of the feeding mechanism, the feeding of the fixing mechanism, the unloading of the dressed grinding wheel, and collection. It integrates multiple functions into one unit and realizes fully automated grinding wheel processing.

[0011] Furthermore, the workbench is provided with a slide rail, and the material dropping plate is provided on the slide rail; the material dropping plate is provided with a pusher cylinder, and the pusher cylinder is located outside the positioning rod of the fixing mechanism; the workbench is provided with a material receiving platform at the bottom of the fixing mechanism, and the feeding platform can slide on the material receiving platform; the material receiving platform is provided with the material dropping groove on the side away from the feeding platform; the feeding platform is provided with a positioning groove for the grinding wheel to be placed vertically.

[0012] The pusher cylinder is designed to reliably detach the grinding wheel from the fixed mechanism. The support platform and drop chute buffer and collect the grinding wheel. The grinding wheel is pushed into the drop chute for collection simultaneously by the feeding action of the feeding platform, making collection convenient. The positioning groove on the feeding platform allows the grinding wheel to be placed vertically on the feeding platform.

[0013] Furthermore, the transmission mechanism includes a rack, a transmission gear, transmission teeth, and a first return spring; the rack is slidably disposed on the worktable and perpendicular to the blanking plate, one end of the rack can contact the blanking plate, and the other end is connected to the first return spring;

[0014] The transmission gear is rotatably mounted on the worktable via a rotating shaft, and the transmission gear meshes with the rack; the transmission teeth are located on one side of the feeding table and mesh with the transmission gear.

[0015] By setting up a transmission mechanism, when the blanking plate moves towards the grinding wheel and pushes the grinding wheel away from the positioning rod, the blanking plate simultaneously pushes the rack to move, driving the transmission gear to rotate. The rotation of the transmission gear drives the feeding table to move from the feeding mechanism to the bottom of the positioning rod, and drives the grinding wheel to move from the feeding mechanism to the bottom of the positioning rod for fixing. When the push rod resets, the feeding table resets and returns to the feeding mechanism to receive the grinding wheel on the feeding mechanism; thus realizing the automatic feeding of the grinding wheel.

[0016] Furthermore, the fixing mechanism includes a rotating motor, a positioning rod, a cylinder, a moving rod, a rotating rod, and a clamping block; the rotating motor is mounted on the worktable and connected to the positioning rod, driving the positioning rod to rotate; the cylinder can drive the moving rod to move towards the positioning rod, and a rotating rod is rotatably connected to the moving rod via a bearing; a clamping space for the grinding wheel to enter is provided between the clamping block and the positioning rod, the positioning rod and the clamping block cooperate to clamp the grinding wheel, one end of the clamping block is inserted into the interior of the rotating rod, and a clamping spring is provided between the rotating rod and the clamping block.

[0017] When fixing the grinding wheel to be dressed, the grinding wheel is placed between the positioning rod and the clamping block. The drive cylinder moves the moving rod, rotating rod and clamping block to clamp the grinding wheel. Then the rotating motor is started, and the grinding wheel is fixed by clamping it with the positioning rod and the clamping block. Then the grinding wheel is rotated. Unlike the existing adsorption method, the grinding wheel is fixed more firmly and is not easy to deviate.

[0018] Furthermore, the rotating rod is provided with a suction hood on its exterior, and the rotating rod has an adsorption port that communicates with the suction hood; the clamping block is provided with an air supply chamber inside, and the clamping block has an opening and closing port on its side; when the clamping block clamps the grinding wheel, the opening and closing port can connect the interior of the rotating rod and the air supply chamber; a coarse filter screen is provided on the opening and closing port.

[0019] The rotating rod has a telescopic tube inside; one end of the telescopic tube is connected to the air supply chamber, and the other end is connected to the negative pressure device; a sealing plug is provided inside the rotating rod on the side near the tightening spring, and the sealing plug can open and close the opening and closing port when the tightening block moves.

[0020] Before vacuuming begins, the opening and closing port is sealed by the plug, preventing vacuuming. When the grinding wheel is tightened by the clamping block, the clamping block overcomes the spring force of the clamping spring and moves inward to the rotating rod, causing the opening and closing port to misalign with the plug and open. At this point, the suction hood, suction port, rotating rod, opening and closing port, air supply chamber, and telescopic tube are connected in sequence, allowing the dust and impurities generated during dressing to be adsorbed. After one grinding wheel has finished working, the clamping is loosened, and the clamping block moves under the action of the clamping spring. The plug and clamping block move relative to each other, closing the opening and closing port again. During this movement, the plug scrapes the surface of the coarse filter screen, causing impurities on the screen to fall into the rotating rod. The coarse filter screen also isolates large particles of impurities within the rotating rod, reducing the workload of subsequent filtration units.

[0021] Furthermore, the clamping block is provided with a sliding groove, and a first hinge seat is provided in the sliding groove; a sliding sleeve is provided on the rotating rod, and the sliding sleeve is connected to the suction hood; a second hinge seat is provided on the sliding sleeve, and the first hinge seat and the second hinge seat are connected by a connecting rod; a second return spring is provided in the sliding groove.

[0022] When the grinding wheel rotates, the clamping block and the rotating rod rotate together. Under the action of centrifugal force, the first hinge seat moves outward, and the connecting rod pulls the second hinge seat, the sliding sleeve and the suction hood closer to the grinding wheel. As the speed of the grinding wheel increases, the suction hood gets closer to the grinding wheel to ensure the dust collection effect when the grinding wheel speed is different.

[0023] Furthermore, the air supply chamber extends to one end of the positioning rod to communicate with the outside; and when the clamping block contacts and clamps the grinding wheel, the middle part of the grinding wheel can seal the air supply chamber.

[0024] The air supply chamber is connected to the outside. When the grinding wheel is tightened and fixed by the clamping block, the grinding wheel seals the air supply chamber. When negative pressure is generated for dust suction, the grinding wheel can be adsorbed at the same time, which further improves the stability of the grinding wheel fixation.

[0025] Furthermore, the negative pressure device includes a fan, a filter cover, and a filter unit disposed inside the filter cover; the fan is installed on one side of the filter cover to drive the airflow inside the filter cover to move, and the filter cover is provided with an air inlet and an air outlet, the air inlet being connected to the telescopic pipe, and the air outlet being connected to the atmosphere;

[0026] The filtration unit includes a tubular filter screen disposed inside the filter cover and a drive mechanism for driving the tubular filter screen to rotate; the air inlet end receives air from the middle of the tubular filter screen, and the air outlet end receives air from the outside of the tubular filter screen; the drive mechanism includes a drive motor, an incomplete gear driven by the drive motor to rotate, and an annular gear ring disposed outside the tubular filter screen; the annular gear ring meshes with the incomplete gear for transmission.

[0027] The negative pressure device provides the power for adsorption. Impurities in the trimming process enter the filter hood and are filtered by the tubular filter screen. The impurities remain inside the tubular filter screen and drive the tubular filter screen to rotate intermittently. This allows the impurities that are clogging the holes of the tubular filter screen to fall off by gravity, greatly reducing the clogging of the tubular filter screen.

[0028] Furthermore, the filtration unit also includes a swing mechanism that can cause the tubular filter to tilt and swing when it rotates. The swing mechanism includes a swing gear, a rotating rod, a cam, and a tension spring. The rotating rod is rotatably installed inside the filter cover, and the swing gear and the cam are both disposed on the rotating rod. The cam abuts against the outer wall of the tubular filter. The tension spring connects the tubular filter and the inner wall of the filter cover.

[0029] By setting up a swing mechanism, when the tubular filter screen rotates, it synchronously drives the swing gear to rotate, which in turn drives the rotating rod and cam to rotate. When the protrusion of the cam rotates to the upper end, it lifts the tubular filter screen. As the cam rotates, it drives the tubular filter screen to swing up and down. At the same time, the tilting of the tubular filter screen can cause the internal filter impurities to accumulate and collect on one side.

[0030] This invention also discloses a method for controlling bearing grinding wheel dressing, applicable to the aforementioned bearing grinding wheel dressing equipment, comprising:

[0031] Step 1: The grinding wheels to be dressed are fed into the feeding mechanism, which then transports the grinding wheels one by one to the feeding platform.

[0032] Step 2: The dressinged grinding wheel is removed by the material drop plate and simultaneously moved to the fixing mechanism. The fixing mechanism fixes the grinding wheel on the feeding platform. After fixing, the material drop plate and the feeding platform are reset.

[0033] Step 3: Activate the dressing mechanism to dress the fixed grinding wheel;

[0034] Step four, repeat steps one through three.

[0035] The bearing grinding wheel dressing equipment and its dressing control method disclosed in this invention connect the entire grinding wheel dressing process by setting up a feeding mechanism, a feeding mechanism, a fixing mechanism and a dressing mechanism. The feeding mechanism simultaneously realizes the unloading of the feeding mechanism, the feeding of the fixing mechanism, the unloading of the dressed grinding wheel and the collection, etc., integrating multiple functions into one and realizing the fully automated processing of grinding wheels.

[0036] Meanwhile, this invention combines a dust-collecting structure with a fixed structure, which reduces the arrangement of external pipelines and the phenomenon of pipeline aging compared with the prior art. Compared with the current method of combining a dust-collecting structure with a dressing mechanism, there is no need to make holes or grooves in the dressing head, which ensures the strength of the dressing mechanism, ensures the accuracy of dressing the grinding wheel, and reduces the complexity of the process. Moreover, the dust-collecting hood can be adjusted with the speed of the grinding wheel, which can ensure a better dust-collecting effect.

[0037] Other features and advantages of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0038] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0039] Figure 1 This is a top view of one embodiment of the present invention.

[0040] Figure 2 This is a schematic diagram of the transmission mechanism in one embodiment of the present invention;

[0041] Figure 3 This is a cross-sectional schematic diagram of the transmission mechanism in one embodiment of the present invention;

[0042] Figure 4 This is a schematic diagram of the material discharge trough in one embodiment of the present invention;

[0043] Figure 5 This is a schematic diagram of a trimming mechanism in one embodiment of the present invention;

[0044] Figure 6 This is a schematic diagram of the fixing mechanism in one embodiment of the present invention;

[0045] Figure 7 This is a schematic diagram of the structure when the fixing mechanism is tightened in one embodiment of the present invention;

[0046] Figure 8 This is a schematic diagram of a suction hood in one embodiment of the present invention;

[0047] Figure 9 This is a schematic diagram of the slide groove in one embodiment of the present invention;

[0048] Figure 10 This is a schematic diagram illustrating the opening and closing of the opening / closing port in one embodiment of the present invention;

[0049] Figure 11 This is a schematic diagram of a negative pressure device in one embodiment of the present invention;

[0050] Figure 12 This is a side view of a negative pressure device in one embodiment of the present invention;

[0051] Figure 13 This is a perspective view of a negative pressure device in one embodiment of the present invention.

[0052] Explanation of reference numerals in the attached figures:

[0053] 1. Workbench; 2. Feeding mechanism; 3. Trimming mechanism; 31. Trimming disc; 4. Feeding mechanism; 41. Driving component; 42. Drop plate; 43. Push cylinder; 44. Feeding table; 45. Transmission mechanism; 451. Rack rack; 452. Transmission gear; 453. Transmission meshing gear; 454. First return spring; 46. Slide rail; 47. Support platform; 48. Drop chute; 49. Positioning groove; 5. Fixing mechanism; 51. Positioning rod; 52. Rotating rod; 53. Tightening block; 531. Slide groove; 532. First return spring 533. Hinge seat; 534. Second return spring; 535. Connecting rod; 54. Suction hood; 546. Sliding sleeve; 547. Second hinge seat; 58. Tightening spring; 59. Suction port; 500. Opening and closing port; 510. Coarse filter screen; 511. Telescopic tube; 62. Negative pressure device; 61. Filter cover; 611. Air inlet end; 612. Air outlet end; 62. Tubular filter screen; 63. Incomplete gear; 64. Ring gear; 65. Swing gear; 66. Rotating rod; 67. Cam; 68. Tension spring; 69. Cover plate. Detailed Implementation

[0054] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0055] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0056] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of the invention described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or device that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or devices. "Fixed" or "fixed connection" generally refers to common mechanical connection methods, such as threaded connections, welding, or bonding.

[0057] Existing bearing grinding wheel dressing equipment has at least the following problems:

[0058] First, the repair equipment still requires manual assistance during operation, such as manual loading and unloading, making it difficult to achieve full automation. The repair efficiency is low, the accuracy is poor, and manual loading and unloading is somewhat dangerous.

[0059] Secondly, the current method of combining the negative pressure mechanism with the dressing head to clean the dust generated during the dressing process requires drilling holes and other processing of the dressing head, which reduces the service life of the dressing head and also affects the accuracy of dressing the grinding wheel to some extent.

[0060] This invention provides a bearing grinding wheel dressing device, such as... Figure 1 As shown, in this embodiment, the bearing grinding wheel dressing equipment includes a workbench 1 and a loading mechanism 2, a feeding mechanism 4, a fixing mechanism 5, and a dressing mechanism 3 mounted on the workbench 1. The workbench 1 has support feet and casters at its bottom for support and movement. The loading mechanism 2 is a spiral vibrating feeder used to transport the grinding wheel to be dressed. Since the loading mechanism 2 is a relatively mature existing technology and not protected by this invention, it will not be described in detail here. It should be noted that a sliding rail 46 at an inclination angle is provided at the discharge point of the spiral vibrating feeder to switch the bearing from a horizontal conveying state to a vertical conveying state. The fixing mechanism 5 is used to fix the grinding wheel to be dressed and drive it to rotate. The dressing mechanism 3 performs dressing work on the rotating grinding wheel on the fixing mechanism 5. Figure 5 As shown, the dressing mechanism 3 is equipped with a dressing disc 31 and an adjustment unit that drives the dressing disc 31 to rotate and move in multiple directions. The dressing work is carried out by coordinating the rotation of the grinding wheel and the rotation of the dressing disc 31. The synchronous and opposite rotation of the two can ensure the dressing effect. The multi-directional adjustment movement means that the dressing disc 31 can be driven to perform horizontal, vertical and tilting movements to meet the needs of dressing the grinding wheel at multiple angles.

[0061] Regarding the feeding mechanism 4, in this embodiment, the feeding mechanism 4 can drive the grinding wheel on the loading mechanism 2 to move onto the fixing mechanism 5. The number of grinding wheels fed matches the number of fixing mechanisms 5. For ease of understanding, in this embodiment, the fixing mechanism 5 is only configured to fix one grinding wheel at a time, so the feeding mechanism 4 only feeds one grinding wheel to the fixing mechanism 5 each time; specifically, as shown... Figure 2 and Figure 3 As shown, the feeding mechanism 4 is configured as a driving component 41, a dropping plate 42, a transmission mechanism 45, and a feeding table 44. The driving component 41 can be configured as an electric push rod. The driving component 41 is connected to the dropping plate 42 to drive the dropping plate 42 to move. Specifically, it can drive the dropping plate 42 to move towards the grinding wheel on the fixing mechanism 5 and move the grinding wheel on the fixing mechanism 5 to disengage from the fixing mechanism 5. The transmission mechanism 45 can drive the feeding table 44 to move simultaneously when the dropping plate 42 is driven by the driving component 41, so that the feeding table 44 moves back and forth between the feeding mechanism 2 and the fixing mechanism 5 to perform feeding work. When the feeding table 44 moves, it can push the grinding wheel disengaged from the fixing mechanism 5 into the dropping trough 48 on the worktable 1 for collection. The feeding table 44 can move to the unloading receiving of the grinding wheel discharged from the inclined track of the slide rail 46. The feeding table 44 can move to the bottom of the fixing mechanism 5 so that the fixing mechanism 5 can fix the grinding wheel on the feeding table 44.

[0062] To ensure the stability of the movement of the blanking plate 42, a slide rail 46 is provided on the workbench 1. The bottom of the blanking plate 42 is set on the slide rail 46, allowing the blanking plate 42 to move along the slide rail 46 and preventing deviation during movement. A pusher cylinder 43 is fixedly connected to the blanking plate 42. The pusher cylinder 43 is located outside the positioning rod 51 of the fixing mechanism 5. The outer diameter of the pusher cylinder 43 is smaller than the diameter of the grinding wheel, allowing the pusher cylinder 43 to push the grinding wheel off. A receiving platform 47 is provided at the bottom of the fixing mechanism 5 on the workbench 1. The receiving platform 47 is used to receive the grinding wheel pushed off the fixing mechanism 5. A buffer layer is provided on the top of the receiving platform 47 to cushion the grinding wheel. The feeding platform 44 slides on the receiving platform 47. A dropping groove 48 is provided on the side of the receiving platform 47 away from the feeding platform 44, allowing the feeding platform 44 to push the grinding wheel that falls onto the receiving platform 47 into the dropping groove 48 when it approaches the fixing mechanism 5. Figure 4As shown, a material chute 48 is provided on the workbench 1. A material collection frame is provided inside the workbench 1. The material collection frame is located at the bottom of the material chute 48 to receive the grinding wheel entering the material chute 48. The material collection frame is slidably set inside the workbench 1 to facilitate the removal of the grinding wheel. A positioning groove 49 is provided on the feeding table 44 for the grinding wheel to be placed vertically. The depth of the positioning groove 49 is only enough for the bottom of the grinding wheel to be inserted. The center part of the grinding wheel is exposed on the upper part of the positioning groove 49 for the fixing mechanism 5 to fix it. In order to ensure the position of the grinding wheel on the feeding table 44 and to ensure the accuracy of the fixing mechanism 5, the depth of the positioning groove 49 is set to gradually increase from the feeding mechanism 2 to the fixing mechanism 5, so that after the grinding wheel enters the positioning groove 49, it can roll to the side of the feeding table 44 near the fixing mechanism 5. In other embodiments, a conveyor belt can also be provided in the positioning groove 49 for conveying.

[0063] Regarding the transmission mechanism 45, such as Figure 2 and Figure 3 As shown, the transmission mechanism 45 is configured as a rack 451, a transmission gear 452, a transmission tooth 453, and a first return spring 454. The rack 451 is slidably mounted on the worktable 1, specifically inside the slide rail 46, which limits the movement of the rack 451. The rack 451 is perpendicular to the blanking plate 42, with one end of the rack 451 in contact with the blanking plate 42 and the other end connected to the first return spring 454. This allows the rack 451 to move when the blanking plate 42 moves, and also allows the rack 451 to move when the blanking plate 42 returns to its original position. The first reset spring 454 is used for reset; the transmission gear 452 is rotatably mounted on the worktable 1 via a rotating shaft, and one side of the transmission gear 452 meshes with the rack 451 for transmission, so that the transmission gear 452 can rotate when the rack 451 moves; the transmission gear 453 is set on one side of the feeding table 44 and meshes with the transmission gear 452, so that the feeding table 44 moves when the rotating gear rotates, thereby realizing that when the dropping plate 42 moves back and forth, it drives the feeding table 44 to move back and forth between the feeding mechanism 2 and the fixing mechanism 5 to perform the feeding of the grinding wheel.

[0064] Regarding fixed mechanism 5, such as Figure 1 , Figure 6 and Figure 7As shown, the fixing mechanism 5 is configured as a rotating motor, a positioning rod 51, a cylinder, a moving rod, a rotating rod 52, and a clamping block 53. The rotating motor is mounted on the worktable 1 and connected to the positioning rod 51. The rotating motor drives the positioning rod 51 to rotate. The pusher cylinder 43 is sleeved outside the positioning rod 51 and does not contact the positioning rod 51. The cylinder can drive the moving rod to move towards the positioning rod 51 to clamp and fix the grinding wheel. The grinding wheel is fixed between the positioning rod 51 and the clamping block 53. The rotating rod 52 is rotatably connected to the moving rod through a bearing. This allows the rotating rod 52 to rotate together with the grinding wheel and the positioning rod 51; a clamping space is provided between the clamping block 53 and the positioning rod 51 for the grinding wheel to enter, and the positioning rod 51 and the clamping block 53 cooperate to clamp the grinding wheel; one end of the clamping block 53 is inserted into the interior of the rotating rod 52, and a clamping spring 55 is provided between the rotating rod 52 and the clamping block 53. The clamping spring 55 is sleeved on the outside of the clamping block 53, so that when the clamping block 53 clamps the grinding wheel, the clamping spring 55 is compressed and the grinding wheel is clamped by the elastic force.

[0065] In order to fix the grinding wheel in one step, in other embodiments, an adsorption mechanism can also be provided to adsorb the grinding wheel from the positioning rod 51. Similarly, the grinding wheel can be pushed off by the pusher cylinder 43. Moreover, there is no need to close this adsorption mechanism when the grinding wheel is dressed during work switching; and dust can be sucked up when the grinding wheel is switched.

[0066] In order to promptly absorb the dust generated during grinding wheel dressing; such as Figure 8 As shown, a suction hood 54 is provided outside the rotating rod 52. The diameter of the suction hood is larger than the diameter of the grinding wheel to ensure sufficient adsorption of dust around the grinding wheel. An adsorption port 56 communicating with the suction hood 54 is provided on the rotating rod 52, thus reducing the accumulation of dust in external pipes by placing the adsorption channel internally. An air supply chamber is provided inside the clamping block 53, which is connected to the suction hood 54 through the opening / closing port and the adsorption port 56. Figure 10 As shown, the side of the clamping block 53 has an opening and closing port 57, and multiple opening and closing ports 57 are evenly distributed on the side of the clamping block 53. When the clamping block 53 is not clamping the grinding wheel, the opening and closing port 57 is closed. When the clamping block 53 clamps the grinding wheel, the opening and closing port 57 can connect the interior of the rotating rod 52 and the air supply chamber. A telescopic tube 58 is provided inside the rotating rod 52 as a connecting pipe, and a certain amount of telescopic range is provided due to the movement of the clamping block 53. One end of the telescopic tube 58 is connected to the air supply chamber, and the other end is connected to the negative pressure device 6. The negative pressure device 6 provides negative pressure so that the suction hood 54 can perform suction work. A sealing plug is provided inside the rotating rod 52 on the side near the clamping spring 55. The sealing plug can open and close the opening and closing port 57 when the clamping block 53 moves. That is, the opening and closing port 57 is opened when the clamping block 53 clamps the grinding wheel, and the opening and closing port 57 is closed when the clamping block 53 is not clamping.

[0067] In addition, a shut-off valve is installed inside the telescopic tube 58. When the cylinder malfunctions and cannot drive the rotating rod 52 to clamp and fix the grinding wheel, the shut-off valve is closed, and the negative pressure device 6 is controlled to supply air. At this time, the telescopic tube 58 unfolds, driving the clamping block 53 to move and clamp the grinding wheel to fix it. This serves as a temporary fixation, providing time for subsequent maintenance of the cylinder and avoiding downtime that affects efficiency. This method requires sufficient air pressure to avoid the phenomenon that the grinding wheel cannot be driven to rotate.

[0068] To prevent large particles from entering the telescopic tube 58 and causing blockage, a coarse filter 571 is installed on the opening / closing port 57. During dust collection, large particles enter the rotating rod 52 with the airflow and are blocked by the coarse filter 571, accumulating on it. Fine dust and airflow enter the air supply chamber and the telescopic tube 58. As the cleaning work is completed, the opening / closing port 57 closes, and the sealing plug and the tightening block 53 move relative to each other. The sealing plug scrapes the surface of the coarse filter 571, pushing the large particles adsorbed on the coarse filter 571 into the rotating rod 52 for collection, thus cleaning the coarse filter 571. The coarse filter 571 is automatically cleaned once every time a grinding wheel is replaced for cleaning.

[0069] The specific dust collection steps are as follows: Before dust collection, the opening / closing port 57 is sealed by the sealing plug and cannot be used for dust collection; when the grinding wheel is tightened by the tightening block 53, the tightening block 53 overcomes the elastic force of the tightening spring 55 and moves into the interior of the rotating rod 52, causing the opening / closing port 57 to be misaligned with the sealing plug, and the opening / closing port 57 opens. At this time, the suction hood 54, the suction port 56, the rotating rod 52, the opening / closing port 57, the air supply chamber and the telescopic tube 58 are connected in sequence, which can adsorb the dust and impurities generated during dressing; after one grinding wheel has finished working, the tightening of the grinding wheel is loosened, and the tightening block 53 moves under the action of the tightening spring 55. The sealing plug moves relative to the tightening block 53 and closes the opening / closing port 57 again. During the movement, the sealing plug scrapes the surface of the coarse filter screen 571, scraping the impurities on the coarse filter screen 571 into the interior of the rotating rod 52.

[0070] Through the above technical solution, the present invention combines the dust collection structure with the fixed structure. Compared with the prior art, it reduces the layout of external pipelines and the phenomenon of pipeline aging. Compared with the current method of combining the dust collection structure with the dressing mechanism 3, it eliminates the need for drilling or grooving the dressing head, ensuring the strength of the dressing mechanism 3, ensuring the accuracy of dressing the grinding wheel, and reducing the complexity of the process. Furthermore, the dust collection hood can be adjusted with the speed of the grinding wheel, which can ensure a better dust collection effect.

[0071] It's easy to understand that as the rotation speed increases, the dust diffusion rate accelerates, thus improving the dust adsorption effect; for example... Figure 8 and Figure 9 As shown, a groove 531 is provided on the clamping block 53, and a first hinge seat 532 is slidably installed in the groove 531. The first hinge seat 532 can slide within the groove 531. A sliding sleeve 541 is provided on the rotating rod 52, and the sliding sleeve 541 is connected to the suction hood 54, so that the sliding sleeve 541 and the suction hood 54 can move together on the rotating rod 52. A second hinge seat 542 is fixedly connected to the sliding sleeve 541. The first hinge seat 532 and the second hinge seat 542 are connected by a connecting rod 534, that is, the two ends of the connecting rod 534 are respectively connected to the first hinge seat 531. 2. The first hinge seat 542 is hinged to the second hinge seat 542. A second return spring 533 is provided in the slide groove 531. The second return spring 533 is used to reset the hinge seat. When the grinding wheel rotates, the clamping block 53 and the rotating rod 52 rotate together. Under the action of centrifugal force, the first hinge seat 532 moves outward. The connecting rod 534 pulls the second hinge seat 542, the sliding sleeve 541 and the suction hood 54 closer to the grinding wheel. As the rotation speed of the grinding wheel increases, the suction hood 54 gets closer to the grinding wheel, and the dust adsorption rate increases to ensure the dust suction effect when the grinding wheel rotation speed is different.

[0072] To further improve the stability of the grinding wheel fixation, the air supply chamber is extended to one end of the positioning rod 51 to communicate with the outside, so that when the clamping block 53 contacts and clamps the grinding wheel, the middle of the grinding wheel can seal the air supply chamber; when the grinding wheel is clamped and fixed by the clamping block 53, the grinding wheel seals the air supply chamber, and when negative pressure is generated for dust suction, it can also adsorb the grinding wheel, further improving the stability of the grinding wheel fixation.

[0073] Regarding negative pressure equipment 6, such as Figure 11 , Figure 12 and Figure 13 As shown, the negative pressure device 6 is configured as a fan, a filter cover 61, and a filter unit; the filter unit is located inside the filter cover 61 to perform filtration; the fan is installed on one side of the filter cover 61 and communicates with the inside of the filter cover 61. The fan drives the airflow inside the filter cover 61 to move. An air inlet 611 and an air outlet 612 are provided on the filter cover 61. The air is driven to enter from the air inlet 611 and exit from the air outlet 612. The air inlet 611 is connected to the telescopic pipe 58 to allow the air inside the telescopic pipe 58 to enter. The air outlet 612 is connected to the atmosphere to allow the filtered air inside the filter cover 61 to be discharged to the atmosphere.

[0074] The filtration unit includes a tubular filter screen 62 and a drive mechanism. The tubular filter screen 62 is located inside a filter cover 61 and spaced apart from the inner wall of the filter cover 61. The drive mechanism drives the tubular filter screen 62 to rotate inside the filter cover 61. Air enters from the middle of the tubular filter screen 62 through the inlet end 611 and exits from the outside of the tubular filter screen 62 through the outlet end 612, meaning that filtered impurities remain inside the tubular filter screen 62. The drive mechanism includes a drive motor, an incomplete gear 63, and a ring gear 64. The incomplete gear 63 is rotatably mounted inside the filter cover 61 and located between the filter cover 61 and the tubular filter screen 62. The incomplete gear 63 is connected to the output end of the drive motor and rotates under its influence. The ring gear 64 is located on the outer wall of the tubular filter screen 62 and meshes with the incomplete gear 63 for transmission. The incomplete gear 63 and the ring gear 64 are positioned outside the tubular filter screen 62 to prevent the adsorption of impurities, and they only come into contact with the filtered gas, thus increasing the service life. During the adsorption process, impurities from the trimming process enter the filter cover 61 and are filtered by the tubular filter screen 62. The impurities remain inside the tubular filter screen 62. At the same time, the drive motor and the incomplete gear 63 work together to drive the tubular filter screen 62 to rotate intermittently. This allows the impurities clogging the holes of the tubular filter screen 62 to fall off by gravity, greatly reducing the clogging of the tubular filter screen 62. The intermittent rotation avoids the impurities from being unable to fall off by gravity under the action of centrifugal force when rotating continuously. The intermittent rotation also prevents impurities from being difficult to fall off in the holes for a long time, maintaining the mobility of impurities within the tubular filter screen 62.

[0075] To further prevent impurities from clogging the filter screen 62, a swing mechanism is also provided. This mechanism allows the tubular filter screen 62 to tilt and swing simultaneously as it rotates. The swing mechanism includes a swing gear 65, a rotating rod 66, a cam 67, and a tension spring 68. The rotating rod 66 is rotatably mounted inside the filter cover 61 via a rotating shaft. The swing gear 65 and cam 67 are both fixed to the rotating rod 66, with the cam 67 eccentrically mounted on the rotating rod 66. The swing gear 65 meshes with the incomplete gear 63, allowing the swing gear 65 to rotate when the incomplete gear 63 rotates. The cam 67 abuts against the outer wall of the tubular filter screen 62, pushing one side of the tubular filter screen 62 upwards when the rotating rod 66 rotates. The tension spring 68 connects the tubular filter screen 62 to the inner wall of the filter cover 61. To prevent gas from directly escaping from both sides of the tubular filter screen 62 to the outlet 612 during the swinging process, elastic sealing membranes are provided on both sides of the tubular filter screen 62, connecting the tubular filter screen 62 through these membranes. The inner wall of the filter cover 61; the swing of the tubular filter screen 62 is only slight, and during the swing, the incomplete meshing of the gear 63 and the ring gear 64 is maintained so that the tubular filter screen 62 can be driven to rotate; in the initial state, the tension spring 68 pulls the tubular filter screen 62 to the inclined state, and the tubular filter screen 62 gradually tilts downward from the air inlet end 611 to the side away from the air inlet end 611; when the rotating rod 66 rotates, the cam 67 can push the tubular filter screen 62 upward, and push the tubular filter screen 62 to the horizontal state; with the back and forth swing, the impurities accumulated inside the tubular filter screen 62 will tilt and accumulate to the side away from the air inlet end 611; thereby further reducing the impurities on the tubular filter screen 62 at the air inlet end 611. It should be noted that the air outlet end 612 is set on the side close to the air inlet end 611 to prevent gas from flowing to the impurity accumulation area; in order to facilitate the removal of impurities accumulated at the accumulation area, a removable cover plate 69 is provided on the side of the filter cover 61 away from the air inlet end 611.

[0076] This invention also discloses a method for controlling bearing grinding wheel dressing, applicable to the aforementioned bearing grinding wheel dressing equipment, comprising:

[0077] Step 1: Feed the grinding wheels to be dressed into the feeding mechanism 2, and the feeding mechanism 2 will transport the grinding wheels one by one to the feeding table 44;

[0078] Step 2: The finished grinding wheel is removed by the material drop plate 42, and the feeding table 44 is moved to the fixing mechanism 5 at the same time. The fixing mechanism 5 fixes the grinding wheel on the feeding table 44. After fixing, the material drop plate 42 and the feeding table 44 are reset.

[0079] Step 3: Start the dressing mechanism 3 to dress the fixed grinding wheel;

[0080] Step four, repeat steps one through three.

[0081] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A bearing grinding wheel dressing device, characterized in that, It includes a workbench (1) and a loading mechanism (2), a feeding mechanism (4), a fixing mechanism (5) and a trimming mechanism (3) provided on the workbench (1); The feeding mechanism (4) can drive the grinding wheel on the feeding mechanism (2) to the fixing mechanism (5). The fixing mechanism (5) is used to fix the grinding wheel and drive the grinding wheel to rotate. The dressing mechanism (3) performs dressing work on the grinding wheel on the fixing mechanism (5). The feeding mechanism (4) includes a drive (41), a dropping plate (42), a transmission mechanism (45), and a feeding table (44); the drive (41) is connected to the dropping plate (42) and can drive the dropping plate (42) to move and move the grinding wheel on the fixing mechanism (5) to disengage from the fixing mechanism (5); the transmission mechanism (45) can drive the feeding table (44) to move when the dropping plate (42) moves, so that the feeding table (44) moves back and forth between the loading mechanism (2) and the fixing mechanism (5) to perform feeding work, and when the feeding table (44) moves, it can push the grinding wheel disengaged from the fixing mechanism (5) into the dropping groove (48) on the worktable (1); The fixing mechanism (5) includes a rotating motor, a positioning rod (51), a cylinder, a moving rod, a rotating rod (52), and a clamping block (53). The rotating motor is mounted on the worktable (1) and connected to the positioning rod (51), driving the positioning rod (51) to rotate. The cylinder can drive the moving rod to move towards the positioning rod (51), and the rotating rod (52) is rotatably connected to the moving rod via a bearing. A clamping space for the grinding wheel to enter is provided between the clamping block (53) and the positioning rod (51). The positioning rod (51) and the clamping block (53) cooperate to clamp the grinding wheel. One end of the clamping block (53) is inserted into the interior of the rotating rod (52), and a clamping spring (55) is provided between the rotating rod (52) and the clamping block (53). The rotating rod (52) is provided with a suction hood (54) on its exterior, and the rotating rod (52) is provided with an adsorption port (56) communicating with the suction hood (54); the clamping block (53) is provided with an air supply chamber inside, and the clamping block (53) is provided with an opening and closing port (57) on its side; when the clamping block (53) clamps the grinding wheel, the opening and closing port (57) can connect the interior of the rotating rod (52) and the air supply chamber; a coarse filter screen (571) is provided on the opening and closing port (57). The rotating rod (52) is provided with a telescopic tube (58); one end of the telescopic tube (58) is connected to the air supply chamber, and the other end is connected to the negative pressure device (6); a sealing plug is provided inside the rotating rod (52) on the side near the tightening spring (55), and the sealing plug can open and close the opening and closing port (57) when the tightening block (53) moves.

2. The bearing grinding wheel dressing equipment according to claim 1, characterized in that, The workbench (1) is provided with a slide rail (46), and the material drop plate (42) is provided on the slide rail (46); the material drop plate (42) is provided with a pusher cylinder (43), and the pusher cylinder (43) is provided outside the positioning rod (51) of the fixing mechanism (5); the workbench (1) is provided with a material support platform (47) at the bottom of the fixing mechanism (5), and the feeding platform (44) can slide on the material support platform (47). The material support platform (47) is provided with a material drop groove (48) on the side away from the feeding platform (44); the feeding platform (44) is provided with a positioning groove (49) for the grinding wheel to be placed vertically.

3. The bearing grinding wheel dressing equipment according to claim 1, characterized in that, The transmission mechanism (45) includes a rack (451), a transmission gear (452), a transmission tooth (453), and a first return spring (454); the rack (451) is slidably disposed on the worktable (1) and perpendicular to the blanking plate (42), one end of the rack (451) can contact the blanking plate (42), and the other end is connected to the first return spring (454); The transmission gear (452) is rotatably mounted on the worktable (1) via a rotating shaft. The transmission gear (452) meshes with the rack (451) for transmission. The transmission gear (453) is located on one side of the feeding table (44) and meshes with the transmission gear (452).

4. The bearing grinding wheel dressing equipment according to claim 1, characterized in that, The clamping block (53) is provided with a sliding groove (531), and a first hinge seat (532) is provided in the sliding groove (531); a sliding sleeve (541) is provided on the rotating rod (52), and the sliding sleeve (541) is connected to the suction hood (54); a second hinge seat (542) is provided on the sliding sleeve (541), and the first hinge seat (532) and the second hinge seat (542) are connected by a connecting rod (534); a second return spring (533) is provided in the sliding groove (531).

5. The bearing grinding wheel dressing equipment according to claim 1, characterized in that, The air supply chamber extends to one end of the positioning rod (51) to communicate with the outside; and when the clamping block (53) contacts and clamps the grinding wheel, the middle part of the grinding wheel can seal the air supply chamber.

6. The bearing grinding wheel dressing equipment according to claim 1, characterized in that, The negative pressure device (6) includes a fan, a filter cover (61) and a filter unit disposed inside the filter cover (61); the fan is installed on one side of the filter cover (61) to drive the airflow inside the filter cover (61) to move; the filter cover (61) is provided with an air inlet (611) and an air outlet (612); the air inlet (611) is connected to the telescopic pipe (58); and the air outlet (612) is connected to the atmosphere. The filter unit includes a tubular filter screen (62) disposed inside the filter cover (61) and a drive mechanism for driving the tubular filter screen (62) to rotate; the air inlet (611) intakes air from the middle of the tubular filter screen (62) and the air outlet (612) exhausts air from the outside of the tubular filter screen (62); the drive mechanism includes a drive motor, an incomplete gear (63) driven by the drive motor to rotate, and an annular gear ring (64) disposed outside the tubular filter screen (62); the annular gear ring (64) meshes with the incomplete gear (63) for transmission.

7. The bearing grinding wheel dressing equipment according to claim 6, characterized in that, The filter unit also includes a swing mechanism that can drive the tubular filter screen (62) to tilt and swing when it rotates. The swing mechanism includes a swing gear (65), a rotating rod (66), a cam (67), and a tension spring (68). The rotating rod (66) is rotatably mounted inside the filter cover (61). The swing gear (65) and the cam (67) are both disposed on the rotating rod (66). The cam (67) abuts against the outer wall of the tubular filter screen (62). The tension spring (68) connects the tubular filter screen (62) and the inner wall of the filter cover (61).

8. A method for controlling the dressing of bearing grinding wheels, applicable to the bearing grinding wheel dressing equipment as described in claim 1, characterized in that, include: Step 1: The grinding wheel to be dressed is fed into the feeding mechanism (2), and the feeding mechanism (2) transports the grinding wheel one by one to the feeding table (44); Step 2: The finished grinding wheel is removed by the drop plate (42) and the feeding table (44) is moved to the fixing mechanism (5) at the same time. The fixing mechanism (5) fixes the grinding wheel on the feeding table (44). After fixing, the drop plate (42) and the feeding table (44) are reset. Step 3: Start the dressing mechanism (3) to dress the fixed grinding wheel; Step four, repeat steps one through three.

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