A precision machining, grinding and polishing equipment

Abstract

The present invention relates to the technical field of machining, and specifically to a precision machining grinding and polishing device, which includes a grinding machine body for grinding and polishing a spline shaft. The grinding machine body includes a workbench, a support seat installed on the workbench, a grinding wheel installed on the support seat and used for grinding the spline shaft, and two spray heads installed outside the grinding wheel. The spray heads are used for spraying coolant. A support moving seat is installed on the workbench. The support moving seat is used for clamping and fixing the spline shaft during grinding and polishing, and enabling the spline shaft to move relative to the grinding wheel. It also includes: two support rings. This precision machining grinding and polishing device can scrape off the residual debris and cooling waste liquid at the spline shaft, thereby ensuring the subsequent precise grinding and polishing of the keyway and shaft shoulder of the spline shaft by the grinding wheel, and at the same time ensuring the service life of the grinding wheel.

Description

Technical Field

[0001] The present invention relates to the technical field of machining, and specifically to a precision machining grinding and polishing device. Background Art

[0002] Precision machining parts are components machined through high-precision and high-quality machining technologies. Their machining accuracy can reach or even exceed 1 micron, which is one of the key technologies in the modern machining process system.

[0003] As a key component in mechanical transmission, the machining quality of a spline shaft directly affects the performance and service life of mechanical equipment. To ensure smooth operation of machinery and extend its service life, the machining of spline shafts requires extremely high precision and surface finish.

[0004] Currently, during the grinding and polishing process of existing spline shafts, due to the usually complex shapes of spline shafts, such as keyways, shaft shoulders, etc., it is difficult to achieve a uniform treatment effect on these parts during grinding and polishing. Although existing grinding machines rotate the grinding wheel during the grinding and polishing process of spline shafts, and at the same time the fixture drives the spline shaft thereon to reciprocate relative to the grinding wheel to achieve the effect of reciprocating grinding and polishing of the keyways and shaft shoulders of the spline shaft, during the grinding process, although a coolant is equipped on the outer side of the grinding wheel to cool the grinding position and remove debris at the same time, due to the partitions of multiple keyways on the spline shaft, it is easy to cause debris and cooling waste liquid to remain in the keyways. As a result, when the grinding wheel is grinding, on the one hand, the residual debris will increase the friction between the grinding wheel and the surface of the spline shaft, and at the same time, the debris is easy to embed in the surface of the grinding wheel, resulting in increased wear of the grinding wheel. On the other hand, the residual debris will also cause defects such as scratches and pits on the surface of the spline shaft, reducing its surface finish and precision. Summary of the Invention

[0005] The purpose of the present invention is to provide a precision machining grinding and polishing device to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A precision machining grinding and polishing device, including a grinding machine body for grinding and polishing a spline shaft, the grinding machine body includes a workbench, a support seat installed on the workbench, a grinding wheel installed on the support seat and used for grinding the spline shaft, and two nozzles installed outside the grinding wheel, the nozzles are used for spraying coolant, a support moving seat is installed on the workbench, the support moving seat is used for clamping and fixing the spline shaft during grinding and polishing, and making the spline shaft move relative to the grinding wheel, and further includes:

[0007] Support rings, two of which are provided, and the two support rings are sleeved on the outside of the spline shaft to be ground and polished, and the two support rings are located on the outside of the grinding wheel;

[0008] A fixing frame, the fixing frame is mounted on the supporting ring, and the other end of the fixing frame is fixedly connected to the supporting seat;

[0009] A debris removal mechanism, wherein the debris removal mechanism is installed at the support ring, and the debris removal mechanisms at the two support rings cooperate with the grinding wheels to remove the debris generated by grinding and polishing the keyway and shoulder of the spline shaft;

[0010] The alternating driving mechanism is installed on the supporting seat, and the alternating removing mechanism is used to drive the two debris removing mechanisms alternately.

[0011] Wherein, the debris removal mechanism comprises a positioning ring with one end fixedly connected to the support ring, and the positioning ring is sleeved on the outer side of the spline shaft to be ground and polished;

[0012] The positioning ring is surrounded by a plurality of moving grooves, and a moving frame is slidably penetrated through the moving grooves, and a scraping block is fixedly installed on one end of the moving frame close to the spline shaft, and after the plurality of scraping blocks move along the spline shaft, the debris and cooling waste liquid on the keyway and the shoulder of the spline shaft are scraped off;

[0013] The positioning ring is provided with a moving mechanism for synchronously driving a plurality of moving frames, and the alternating driving mechanism is connected with the moving mechanism.

[0014] Wherein, the moving mechanism comprises a plurality of positioning plates mounted on the positioning ring, a positioning shaft is fixedly connected to the positioning plate, and a positioning gear is rotatably sleeved on the outer side of the positioning shaft, a plurality of tooth blocks are equidistantly arranged on one side of the inside of the moving frame, and the positioning gear is meshedly connected with the tooth block;

[0015] The end of the positioning shaft away from the positioning plate is fixedly connected to a rotating gear, the outer side of the positioning ring is rotatably connected to an external gear ring, and the external gear is meshed with multiple rotating gears, and the rotating gear close to the support seat is connected to an alternating drive mechanism, and through the provided moving mechanism, the function of synchronously driving multiple moving frames is achieved.

[0016] Among them, the alternating drive mechanism includes a driving motor installed on a support seat, the output end of the driving motor is fixedly connected to a rotating disk, and two toggle rods are fixedly connected to the outer side of the rotating disk, the two toggle rods are respectively connected to connecting pieces, the toggle rods are provided with sliding grooves at positions corresponding to the connecting pieces, and the connecting pieces are connected to the rotating gears near the support seat.

[0017] The connecting member comprises a connecting rod slidably connected to the sliding groove, the outer side of the connecting rod is fixedly connected to the limit frame, and one end of the toggle rod slides through the limit frame, the limit frame is provided with a limit groove, and a limit plate is fixedly installed on the support seat, and the limit plate is slidably connected to the limit groove;

[0018] A push rack is fixedly connected to one side of the limit frame, and the push rack is meshed and connected with a rotating gear near the support seat, and the two toggle rods are connected through a connecting piece.

[0019] Wherein, a hollow cavity is provided inside the moving frame, an annular groove is provided inside the supporting ring, a liquid supply mechanism is connected to the supporting ring, and the liquid supply mechanism is used to transport cooling liquid to the annular groove of the supporting ring;

[0020] The support ring is connected to a plurality of connecting hoses, and one end of the connecting hose is connected to the cavity of the moving frame;

[0021] A first through hole is provided at one end of the movable frame close to the scraping block, a liquid passing groove is provided on the scraping block, and a second through hole is provided on the scraping block to connect the liquid passing groove with the first through hole;

[0022] A plurality of spray holes communicated with the movable groove are arranged on one side of the scraping block away from the grinding wheel.

[0023] Among them, the liquid supply mechanism includes a liquid supply box installed on the workbench, a water pump is installed on the liquid supply box, the output end of the water pump is connected to an infusion tube, and the other end of the infusion tube is connected to the annular groove. Through the provided liquid supply mechanism, the annular groove can be supplied with liquid.

[0024] Among them, the side of the scraper block away from the grinding wheel is an arc guide end, and the end of the scraper block close to the keyway is provided with a protrusion, and the protrusion cooperates with the keyway, so that the scraper block can scrape the debris at the keyway and also play a role in guiding the scraped debris.

[0025] Wherein, a swing rod is slidably connected to the arc guide end of the scraping block, a swing shaft is fixedly connected to the swing rod, and a swing member is connected to one end of the swing shaft located inside the liquid passage groove.

[0026] Wherein, the swing member comprises a bracket installed at the second through hole, the bracket is rotatably connected to a support shaft, one end of the support shaft close to the cavity is fixedly connected to a support block, and a plurality of rotating blades are fixedly connected to the outer side of the support block;

[0027] One end of the support shaft located in the liquid passage groove is connected with a rotating block of irregular shape, and a contact shaft is arranged outside the rotating block. One end of the contact shaft is fixedly connected with a contact plate, and the contact plate is fixedly connected with one end of the swing shaft. A torsion spring is installed on one side of the contact plate. The torsion spring is sleeved outside the swing shaft, and one end of the torsion spring is fixedly connected with the inner wall of the liquid passage groove. By providing the swing member, the swing rod can be driven.

[0028] The present invention has at least the following beneficial effects:

[0029] 1. When the present invention is in use, through the two support rings provided, and the fixing frames and debris removing mechanisms provided on the support rings, when the grinding wheel grinds and polishes the spline shaft which is one of the precision machining parts, the two support rings are correspondingly sleeved outside the spline shaft, and the alternating drive mechanism can cooperate with the moving support moving seat, and can adjust the states of the debris removing mechanisms at the two support rings. When the spline shaft moves relative to the grinding wheel, the debris removing mechanisms can scrape the residual debris and cooling waste liquid at the spline shaft in the moving direction of the spline shaft, so as to ensure the subsequent precise grinding and polishing of the key grooves and shaft shoulders of the spline shaft by the grinding wheel, and at the same time ensure the service life of the grinding wheel.

[0030] 2. When the present invention is in use, through the swing rod provided outside the scraping block, when the scraping block can scrape the debris at the key grooves and shaft shoulders, the debris can be prevented from remaining on the scraping block. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 is a schematic diagram of the structure of the support moving seat of the present invention;

[0033] Figure 3 is a schematic diagram of the structure of the support seat of the present invention;

[0034] Figure 4 is a schematic diagram of the structure of the support ring of the present invention;

[0035] Figure 5 is a schematic diagram of the states of different scraping blocks at the two support rings of the present invention;

[0036] Figure 6 is a schematic diagram of the structure of the positioning ring of the present invention;

[0037] Figure 7 is a schematic diagram of the structure of the scraping block of the present invention;

[0038] Figure 8 is a schematic diagram of the structure of the annular groove of the present invention;

[0039] Figure 9 Schematic diagram of the moving frame structure of the present invention;

[0040] Figure 10 Schematic diagram of the internal structure of the moving frame of the present invention;

[0041] Figure 11 For the present invention Figure 10 Enlarged schematic diagram of area A in;

[0042] Figure 12 Schematic diagram of the swing rod structure of the present invention;

[0043] Figure 13 Schematic diagram of the rotating block structure of the present invention;

[0044] Figure 14 Schematic diagram of the liquid supply mechanism structure of the present invention;

[0045] Figure 15 Schematic diagram of the alternating drive mechanism structure of the present invention.

[0046] In the figure: 1 - Grinding machine body; 11 - Workbench; 12 - Support base; 13 - Grinding wheel; 14 - Nozzle; 15 - Support moving seat; 2 - Support ring; 21 - Annular groove; 22 - Connecting hose; 3 - Fixed frame; 4 - Debris removal mechanism; 41 - Positioning ring; 411 - Moving groove; 42 - Moving frame; 421 - Cavity; 422 - First through hole; 43 - Scraping block; 431 - Liquid through groove; 432 - Second through hole; 433 - Spray hole; 434 - Arc-shaped guiding end; 435 - Protrusion; 44 - Moving mechanism; 441 - Positioning plate; 442 - Positioning shaft; 443 - Positioning gear; 444 - Tooth block; 445 - Rotating gear; 446 - Outer gear ring; 5 - Alternating drive mechanism; 51 - Drive motor; 52 - Rotating disk; 53 - Poking rod; 531 - Sliding groove; 54 - Connecting piece; 541 - Connecting rod; 542 - Limiting frame; 5421 - Limiting groove; 543 - Limiting plate; 544 - Pushing rack; 6 - Liquid supply mechanism; 61 - Liquid supply box; 62 - Water pump; 63 - Liquid delivery pipe; 7 - Swing rod; 71 - Swing shaft; 72 - Swing piece; 721 - Bracket; 722 - Support shaft; 723 - Support block; 724 - Rotating blade; 725 - Rotating block; 726 - Contact shaft; 727 - Contact plate; 728 - Torsion spring. Detailed implementation manners

[0047] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention. Embodiment 1

[0048] Please refer to Figures 1 to 8 and Figures 14 to 15 , a precision machining, grinding and polishing equipment, including a grinding machine body 1 for grinding and polishing a spline shaft. The grinding machine body 1 includes a workbench 11, a support seat 12 installed on the workbench 11, a grinding wheel 13 installed on the support seat 12 and used for grinding the spline shaft, and two spray heads 14 installed outside the grinding wheel 13. The spray heads 14 are used for spraying coolant. A support moving seat 15 is installed on the workbench 11. The support moving seat 15 is used for clamping and fixing the spline shaft during grinding and polishing. In the prior art, a moving track is installed on the workbench 11, and the support moving seat 15 can reciprocate along the moving track, so as to drive the spline shaft on the support moving seat 15 to reciprocate relative to the grinding wheel 13, and make the spline shaft move relative to the position of the grinding wheel 13. It is characterized in that it further includes:

[0049] Support rings 2. There are two support rings 2, and the two support rings 2 are sleeved outside the spline shaft to be ground and polished. The two support rings 2 are located outside the grinding wheel 13;

[0050] A fixing frame 3. The fixing frame 3 is installed on the support ring 2, and the other end of the fixing frame 3 is fixedly connected to the support seat 12;

[0051] A debris removal mechanism 4. The debris removal mechanism 4 is installed at the support ring 2, and the debris removal mechanisms 4 at the two support rings 2 cooperate with the grinding wheel 13 to remove the debris generated during grinding and polishing of the spline shaft keyway and shaft shoulder;

[0052] An alternating drive mechanism 5. The alternating drive mechanism 5 is installed on the support seat 12, and the alternating removal mechanism is used to alternately drive the two debris removal mechanisms 4.

[0053] The debris removal mechanism 4 includes a positioning ring 41 fixedly connected to the support ring 2 at one end. The positioning ring 41 is sleeved outside the spline shaft to be ground and polished;

[0054] A plurality of moving grooves 411 are circumferentially provided on the positioning ring 41, and a moving frame 42 is slidably penetrated through the moving groove 411. One end of the moving frame 42 close to the spline shaft is fixedly installed with a scraping block 43. One side of the scraping block 43 away from the grinding wheel 13 is an arc-shaped guiding end 434. One end of the scraping block 43 close to the keyway is provided with a protrusion 435, and the protrusion 435 is matched with the keyway. At the same time, in this embodiment, when a plurality of scraping blocks 43 move to the outside of the spline shaft relative to each other, they can cooperate with each other to synchronously scrape the cooling waste liquid and debris on the outside of the spline shaft. And after a plurality of scraping blocks 43 move along the spline shaft, the debris and cooling waste liquid at the keyway and shaft shoulder of the spline shaft are scraped off;

[0055] A moving mechanism 44 for synchronously driving a plurality of moving frames 42 is provided on the positioning ring 41, and the alternating driving mechanism 5 is connected to the moving mechanism 44.

[0056] The moving mechanism 44 includes a plurality of positioning plates 441 installed on the positioning ring 41. A positioning shaft 442 is fixedly connected to the positioning plate 441, and a positioning gear 443 is rotatably sleeved on the outside of the positioning shaft 442. A plurality of tooth blocks 444 are equidistantly arranged on one side inside the moving frame 42, and the positioning gear 443 is meshed with the tooth blocks 444;

[0057] One end of the positioning shaft 442 away from the positioning plate 441 is fixedly connected with a rotating gear 445. An external gear ring 446 is rotatably connected to the outside of the positioning ring 41, and the external gear is meshed with a plurality of rotating gears 445. The rotating gear 445 close to the support seat 12 is connected to the alternating driving mechanism 5.

[0058] Specific implementation process: When the grinding wheel 13 is about to polish the keyway and shaft shoulder of the spline shaft, when installing the spline shaft between the support moving seat 15, one end of the spline shaft is sequentially passed through the two support rings 2, and then the support moving seat 15 clamps and fixes the spline shaft. Then, under the support of the support moving seat 15, a keyway on the spline shaft is rotated to be directly below the grinding wheel 13. Subsequently, the grinding wheel 13 moves down to the keyway, and then the support moving seat 15 drives the spline shaft thereon to move relative to the grinding wheel 13, and at the same time, the grinding wheel 13 rotates to realize the polishing of the keyway and shaft shoulder of the spline shaft. And in the present invention, the rotation direction of the grinding wheel 13 is opposite to the moving direction of the spline shaft, that is, when the spline shaft moves to the left, the grinding wheel 13 rotates counterclockwise, and when the spline shaft moves to the right, the grinding wheel 13 rotates clockwise;

[0059] And before the grinding wheel 13 performs grinding, a positioning ring 41 in the moving direction of the spline shaft moves. The rotating gear 445 near the support base 12 on it rotates. While the rotating gear 445 rotates, it drives the outer gear ring 446 to rotate relative to the positioning ring 41. While the outer gear ring 446 rotates, it drives a plurality of rotating gears 445 on it to rotate. While the rotating gear 445 rotates, it drives the positioning gear 443 at the positioning shaft 442 to rotate. While the positioning gear 443 rotates, since it meshes with the tooth block 444 at the moving frame 42, it drives the moving frame 42 to move relative to the spline shaft until the positions of the protrusions 435 of the plurality of scraping blocks 43 at the plurality of moving frames 42 all move to the key grooves, and at the same time, the plurality of scraping blocks 43 can cooperate with the plurality of key grooves with each other, and the plurality of scraping blocks 43 at the other support ring 2 do not contact the outer surface of the spline shaft;

[0060] Thus, during grinding, the plurality of scraping blocks 43 in the moving direction of the spline shaft contact the outer surface of the spline shaft. First, the plurality of scraping blocks 43 scrape the key grooves of the spline shaft. Subsequently, when the spline shaft moves to the grinding wheel 13, the grinding wheel 13 moves downward and then rotates, so as to achieve... And since the rotation direction of the grinding wheel 13 is opposite to the moving direction of the spline shaft, before the grinding wheel 13 grinds the spline shaft, the plurality of scraping blocks 43 have already scraped the debris and cooling waste liquid at the key grooves and the shaft shoulders with each other. Thus, after the spline shaft reciprocates, it cooperates with the grinding wheel 13 at the same time, and with the rotation of the spline shaft, the key grooves and the shaft shoulders of the spline shaft are fully ground and polished.

[0061] The alternating drive mechanism 5 includes a drive motor 51 installed on the support base 12. The output end of the drive motor 51 is fixedly connected with a rotating disk 52, and two toggle rods 53 are fixedly connected to the outside of the rotating disk 52. Connecting members 54 are respectively connected to the two toggle rods 53. A sliding groove 531 is provided at the position of the toggle rod 53 corresponding to the connecting member 54, and the connecting member 54 is connected to the rotating gear 445 near the support base 12.

[0062] The connecting member 54 includes a connecting rod 541 slidably connected to the sliding groove 531. A limiting frame 542 is fixedly connected to the outside of the connecting rod 541. One end of the toggle rod 53 slidably penetrates through the limiting frame 542. A limiting groove 5421 is provided on the limiting frame 542, and a limiting plate 543 is fixedly installed on the support base 12, and the limiting plate 543 is slidably connected to the limiting groove 5421. In this embodiment, the limiting plate 543 is U-shaped;

[0063] One side of the limit frame 542 is fixedly connected with a push rack 544, and the push rack 544 is meshed with a rotating gear 445 near the support base 12.

[0064] Specific implementation process: In the present invention, before the grinding wheel 13 grinds the keyway of the spline shaft, the drive motor 51 rotates a certain angle, so that the rotating disk 52 rotates. When the rotating disk 52 rotates, the two swing rods 7 on it swing. When the two toggle rods 53 swing, through the sliding groove 531 and the connecting rod 541, the limit frame 542 is driven to move. Due to the limiting effect of the limit groove 5421 and the limit plate 543 on the limit frame 542, the two limit frames 542 move downward and upward respectively along the vertical plane. When the limit frame 542 moves, the push rack 544 on it is synchronously driven to move, so that the two push racks 544 move in opposite directions. Further, the rotating gears 445 near the support base 12 at the two positioning rings 41 move in opposite directions until the scraping blocks 43 at multiple positions along the moving direction of the spline shaft move to the keyway, and the scraping blocks 43 at the other positioning ring 41 are separated from the keyway, so as to realize the function of scraping debris and cooling waste liquid before grinding the spline shaft. Embodiment Two

[0065] Please refer to Figures 9 to 13 Inside the moving frame 42, there is a hollow cavity 421. Inside the support ring 2, there is an annular groove 21. A liquid supply mechanism 6 is connected to the support ring 2, and the liquid supply mechanism 6 is used to convey cooling liquid to the annular groove 21 of the support ring 2;

[0066] A plurality of connecting hoses 22 are connected to the support ring 2, and one end of each connecting hose 22 is communicated with the cavity 421 of the moving frame 42;

[0067] One end of the moving frame 42 close to the scraping block 43 is provided with a first through hole 422. The scraping block 43 is provided with a liquid through groove 431, and the scraping block 43 is provided with a second through hole 432 for communicating the liquid through groove 431 with the first through hole 422;

[0068] On the side of the scraping block 43 away from the grinding wheel 13, there are a plurality of spray holes 433 communicated with the moving groove 411.

[0069] The liquid supply mechanism 6 includes a liquid supply box 61 installed on the workbench 11. A water pump 62 is installed on the liquid supply box 61. The output end of the water pump 62 is connected with an infusion pipe 63, and the other end of the infusion pipe 63 is communicated with the annular groove 21.

[0070] A swing rod 7 is slidably connected to the arc-shaped guiding end 434 of the scraping block 43. In this embodiment, under the connection action of the torsion spring 728, when the swing shaft 71 is not affected by external forces, the swing rod 7 is driven to be relatively inclined at the arc-shaped guiding end 434. A swing shaft 71 is fixedly connected to the swing rod 7, and one end of the swing shaft 71 located inside the liquid passage groove 431 is connected to a swing member 72.

[0071] The swing member 72 includes a bracket 721 installed at the second through hole 432. A support shaft 722 is rotatably connected to the bracket 721. One end of the support shaft 722 close to the cavity 421 is fixedly connected to a support block 723, and a plurality of rotating blades 724 are fixedly connected to the outside of the support block 723.

[0072] One end of the support shaft 722 located in the liquid passage groove 431 is connected to an irregularly shaped rotating block 725. A contact shaft 726 is provided on the outside of the rotating block 725. One end of the contact shaft 726 is fixedly connected to a contact plate 727, and the contact plate 727 is fixedly connected to one end of the swing shaft 71. A torsion spring 728 is installed on one side of the contact plate 727. The torsion spring 728 is sleeved outside the swing shaft 71, and one end of the torsion spring 728 is fixedly connected to the inner wall of the liquid passage groove 431.

[0073] Specific implementation process: When the scraping block 43 scrapes the debris and cooling waste liquid at the keyway, the water pump 62 operates, so that the coolant enters the infusion tube 63 through the liquid supply box 61. Then, the coolant is introduced into the annular groove 21 through the infusion tube 63, and then is respectively introduced into the cavity 421 of the moving frame 42 through a plurality of connecting hoses 22 in sequence. Then, it enters the second through hole 432 through the first through hole 422, and then is sprayed out through the spray holes 433 of the scraping block 43. Thus, while scraping the debris, the sprayed coolant assists in removing the debris.

[0074] Meanwhile, under the flow of the liquid at the first through hole 422, the plurality of rotating blades 724 are driven to rotate. When the rotating blades 724 rotate, the support shaft 722 is driven to rotate. The rotating block 725 at the other end of the support shaft 722, due to its irregular shape, when it rotates to contact the rotation of the contact shaft 726, it squeezes the contact shaft 726. Thus, under the connection action of the contact plate 727 and the torsion spring 728, the contact shaft 726 is driven to swing, further enabling the swing shaft 71 to drive the swing rod 7 to swing. The swing rod 7 swings relative to the arc-shaped guiding end 434, achieving the effect of swinging and removing the debris at the arc-shaped guiding end 434, and further ensuring that the scraping block 43 can fully scrape the debris.

[0075] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0076] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A precision machining grinding and polishing device, comprising a grinding machine body (1) for grinding and polishing a spline shaft, the grinding machine body (1) comprising a workbench (11), a support seat (12) mounted on the workbench (11), a grinding wheel (13) mounted on the support seat (12) and used for grinding the spline shaft, and two nozzles (14) mounted on the outside of the grinding wheel (13), the nozzles (14) being used for spraying a cooling liquid, a support movable seat (15) being mounted on the workbench (11), the support movable seat (15) being used for clamping and fixing the spline shaft during grinding and polishing, and for moving the spline shaft relative to the grinding wheel (13), characterized in that: Also included are: A support ring (2), wherein two support rings (2) are provided, and the two support rings (2) are sleeved on the outside of the spline shaft to be ground and polished, and the two support rings (2) are located outside the grinding wheel (13); A fixing frame (3), wherein the fixing frame (3) is mounted on the supporting ring (2), and the other end of the fixing frame (3) is fixedly connected to the supporting seat (12); A debris removal mechanism (4), wherein the debris removal mechanism (4) is installed at the support ring (2), and the debris removal mechanisms (4) at the two support rings (2) cooperate with the grinding wheel (13) to remove debris generated by grinding and polishing the keyway and the shoulder of the spline shaft; An alternating drive mechanism (5), the alternating drive mechanism (5) being mounted on a support seat (12), and the alternating removal mechanism being used to drive the two debris removal mechanisms (4) alternately; The debris removal mechanism (4) comprises a positioning ring (41) with one end fixedly connected to the support ring (2), and the positioning ring (41) is sleeved on the outer side of the spline shaft to be ground and polished; The positioning ring (41) is provided with a plurality of movable grooves (411) around it, and a movable frame (42) is slidably penetrated through the movable groove (411), and a scraping block (43) is fixedly mounted on one end of the movable frame (42) close to the spline shaft, and after the plurality of scraping blocks (43) move along the spline shaft, they scrape away debris and cooling waste liquid at the keyway and shoulder of the spline shaft; The positioning ring (41) is provided with a moving mechanism (44) for synchronously driving the plurality of moving frames (42), and the alternating driving mechanism (5) is connected to the moving mechanism (44); The moving mechanism (44) comprises a plurality of positioning plates (441) mounted on the positioning ring (41), a positioning shaft (442) being fixedly connected to the positioning plate (441), and a positioning gear (443) being rotatably sleeved on the outer side of the positioning shaft (442), a plurality of tooth blocks (444) being equidistantly arranged on one side inside the moving frame (42), and the positioning gear (443) being meshingly connected to the tooth block (444); One end of the positioning shaft (442) away from the positioning plate (441) is fixedly connected to a rotating gear (445); an outer gear ring (446) is rotatably connected to the outer side of the positioning ring (41); the outer gear is meshingly connected to a plurality of rotating gears (445); and the rotating gear (445) near the support seat (12) is connected to an alternating drive mechanism (5); The alternating drive mechanism (5) comprises a drive motor (51) mounted on a support seat (12); the output end of the drive motor (51) is fixedly connected to a rotating disk (52); and two toggle rods (53) are fixedly connected to the outer side of the rotating disk (52); the two toggle rods (53) are respectively connected to connecting members (54); the toggle rods (53) are provided with sliding grooves (531) at positions corresponding to the connecting members (54); and the connecting members (54) are connected to a rotating gear (445) near the support seat (12).

2. The precision machining grinding and polishing equipment according to claim 1, characterized in that: The connecting member (54) comprises a connecting rod (541) slidably connected to the sliding groove (531), the outer side of the connecting rod (541) is fixedly connected to a limit frame (542), and one end of the toggle rod (53) slides through the limit frame (542), the limit frame (542) is provided with a limit groove (5421), and a limit plate (543) is fixedly installed on the support seat (12), and the limit plate (543) is slidably connected to the limit groove (5421); A push rack (544) is fixedly connected to one side of the limit frame (542), and the push rack (544) is meshingly connected to a rotating gear (445) near the support seat (12).

3. The precision machining, grinding and polishing equipment according to claim 1, characterized in that: A hollow cavity (421) is provided inside the movable frame (42), an annular groove (21) is provided inside the support ring (2), a liquid supply mechanism (6) is connected to the support ring (2), and the liquid supply mechanism (6) is used to transport cooling liquid to the annular groove (21) of the support ring (2); A plurality of connecting hoses (22) are connected to the support ring (2), and one end of the connecting hose (22) is in communication with the cavity (421) of the moving frame (42); A first through hole (422) is provided at one end of the movable frame (42) close to the scraping block (43); a liquid passage groove (431) is provided on the scraping block (43); and a second through hole (432) is provided on the scraping block (43) for connecting the liquid passage groove (431) with the first through hole (422); A plurality of spray holes (433) in communication with the movable groove (411) are provided on a side of the scraping block (43) away from the grinding wheel (13).

4. The precision machining grinding and polishing equipment according to claim 3, characterized in that: The liquid supply mechanism (6) comprises a liquid supply box (61) mounted on the workbench (11), a water pump (62) being mounted on the liquid supply box (61), an output end of the water pump (62) being connected to a liquid infusion tube (63), and the other end of the liquid infusion tube (63) being in communication with the annular groove (21).

5. The precision machining grinding and polishing equipment according to claim 3, characterized in that: The side of the scraping block (43) away from the grinding wheel (13) is a curved guide end (434), and the end of the scraping block (43) close to the keyway is provided with a protrusion (435), and the protrusion (435) cooperates with the keyway.

6. The precision machining, grinding and polishing equipment according to claim 5, characterized in that: A swing rod (7) is slidably connected to the arc-surface guide end (434) of the scraping block (43), a swing shaft (71) is fixedly connected to the swing rod (7), and one end of the swing shaft (71) located inside the liquid passage groove (431) is connected to a swing member (72).

7. The precision machining, grinding and polishing equipment according to claim 6, characterized in that: The swing member (72) comprises a bracket (721) mounted at the second through hole (432), the bracket (721) being rotatably connected to a support shaft (722), one end of the support shaft (722) close to the cavity (421) being fixedly connected to a support block (723), and a plurality of rotating blades (724) being fixedly connected to the outer side of the support block (723); One end of the support shaft (722) located in the liquid passage groove (431) is connected to a rotating block (725) of an irregular shape, and a contact shaft (726) is provided outside the rotating block (725); one end of the contact shaft (726) is fixedly connected to a contact plate (727), and the contact plate (727) is fixedly connected to one end of the swing shaft (71); a torsion spring (728) is installed on one side of the contact plate (727); the torsion spring (728) is sleeved on the outside of the swing shaft (71), and one end of the torsion spring (728) is fixedly connected to the inner wall of the liquid passage groove (431).

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