Grinding and polishing equipment for precision machining

Abstract

The invention relates to the technical field of machining, in particular to precision machining grinding and polishing equipment which comprises a grinding machine body used for grinding and polishing a spline shaft. The grinding machine body comprises a workbench, a supporting base installed on the workbench, a grinding wheel installed on the supporting base and used for grinding a spline shaft and two spray heads installed on the outer side of the grinding wheel, the spray heads are used for spraying cooling liquid, and a supporting moving base is installed on the workbench; the supporting 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 position of the grinding wheel, and the spline shaft grinding device further comprises two supporting rings; according to the grinding and polishing equipment for precision machining, residual chippings and cooling waste liquid at the spline shaft are scraped away, so that it is guaranteed that a follow-up grinding wheel precisely grinds and polishes a key groove and a shaft shoulder of the spline shaft, and meanwhile the service life of the grinding wheel is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical processing, in particular to a precision mechanical processing grinding and polishing device. Background Art

[0002] Precision machined parts are parts that are processed through high-precision, high-quality mechanical manufacturing technology. Its processing accuracy can reach or even exceed 1 micron, and it is one of the key technologies in the modern mechanical manufacturing process system.

[0003] As a key component of mechanical transmission, the processing quality of spline shaft directly affects the performance and life of mechanical equipment. In order to ensure the smooth operation of the machinery and extend its service life, the processing of spline shaft requires extremely high precision and finish.

[0004] At present, in the process of grinding and polishing of existing spline shafts, since the spline shafts usually have complex shapes, such as keyways, shoulders, etc., it is difficult to achieve uniform processing effects on these parts during grinding and polishing. Although the existing grinder rotates the grinding wheel during the process of grinding and polishing the spline shaft, and the fixture drives the spline shaft thereon to move back and forth relative to the grinding wheel to achieve the function of grinding and polishing the keyways and shoulders of the spline shaft, in the process of grinding, although the outer side of the grinding wheel is equipped with coolant to cool the grinding position and remove debris, due to the isolation of multiple keyways on the spline shaft, it is easy for debris and cooling waste liquid to remain in the keyway, resulting in the grinding wheel When grinding, the debris residue will increase the friction between the grinding wheel and the surface of the spline shaft. At the same time, the debris is easy to embed into the surface of the grinding wheel, resulting in increased wear of the grinding wheel. On the other hand, the debris residue will also cause scratches, pits and other defects 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 equipment to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a precision machining grinding and polishing equipment, comprising a grinding machine body for grinding and polishing a spline shaft, the grinding machine body comprising a workbench, a support seat mounted on the workbench, a grinding wheel mounted on the support seat and used for grinding the spline shaft, and two nozzles mounted on the outside of the grinding wheel, the nozzles are used to spray coolant, a support movable seat is mounted on the workbench, the support movable seat is used to clamp and fix the spline shaft during grinding and polishing, and to move the spline shaft relative to the grinding wheel, and also includes: 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; 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; 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; 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.

[0007] 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; 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; 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.

[0008] 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; 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.

[0009] 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.

[0010] 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; 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.

[0011] 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; The support ring is connected to a plurality of connecting hoses, and one end of the connecting hose is in communication with the cavity of the moving frame; 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; A plurality of spray holes communicated with the moving groove are arranged on one side of the scraping block away from the grinding wheel.

[0012] 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.

[0013] 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.

[0014] 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 piece is connected to one end of the swing shaft located inside the liquid passage groove.

[0015] 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; The support shaft is located at one end of the liquid-passing groove and is connected to an irregularly shaped rotating block, and a contact shaft is provided on the outside of the rotating block, one end of the contact shaft is fixedly connected to a contact plate, and the contact plate is fixedly connected to one end of the swing shaft, and a torsion spring is installed on one side of the contact plate, and the torsion spring is sleeved on the outside of the swing shaft, and one end of the torsion spring is fixedly connected to the inner wall of the liquid-passing groove, and the swing rod is driven by the swinging member.

[0016] The present invention has at least the following beneficial effects: 1. When the present invention is in use, through the two support rings provided, and the fixing frame and the debris removal mechanism provided on the support rings, when the grinding wheel grinds and polishes the spline shaft, which is one of the precision machined parts, the two support rings are correspondingly sleeved on the outside of the spline shaft, and the alternating driving mechanism can cooperate with the movable support movable seat, and the state of the debris removal mechanism at the two support rings can be adjusted, so that when the spline shaft moves relative to the grinding wheel, the debris removal mechanism can scrape off the debris and cooling waste liquid remaining on the spline shaft in the moving direction of the spline shaft, thereby ensuring the subsequent grinding wheel to accurately grind and polish the keyway and shoulder of the spline shaft, and at the same time ensuring the service life of the grinding wheel.

[0017] 2. When the present invention is in use, the oscillating rod is provided on the outer side of the scraping block, so that the scraping block can scrape the debris at the keyway and the shaft shoulder while preventing the debris from remaining on the scraping block. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the supporting movable seat of the present invention; Figure 3 This is a schematic diagram of the support base structure of the present invention; Figure 4 This is a schematic diagram of the support ring structure of the present invention; Figure 5 It is a schematic diagram of the states of different scraping blocks at two support rings of the present invention; Figure 6 This is a schematic diagram of the positioning ring structure of the present invention; Figure 7 This is a schematic diagram of the structure of the scraping block of the present invention; Figure 8 This is a schematic diagram of the annular groove structure of the present invention; Fig. 9 It is a schematic diagram of the structure of the mobile frame of the present invention; Fig.10 This is a schematic diagram of the internal structure of the mobile frame of the present invention; Fig.11 For the present invention Fig.10 A schematic diagram of the enlarged structure of the middle A area; Fig.12 It is a schematic diagram of the structure of the swing arm of the present invention; Fig.13 This is a schematic diagram of the structure of the rotating block of the present invention; Fig.14 It is a schematic diagram of the structure of the liquid supply mechanism of the present invention; Fig.15 It is a schematic diagram of the structure of the alternating drive mechanism of the present invention.

[0019] In the figure: 1-grinding machine body; 11-worktable; 12-support seat; 13-grinding wheel; 14-spray head; 15-support movable 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 groove; 432-second through hole; 433-spray hole; 434-arc guide end; 435-protrusion; 44-moving mechanism; 441-positioning plate; 442-positioning shaft; 443-positioning gear; 444-tooth block; 445- Rotating gear; 446-external gear ring; 5-alternating driving mechanism; 51-driving motor; 52-rotating disk; 53-sliding 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-infusion tube; 7-swinging rod; 71-swinging shaft; 72-swinging 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 DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Embodiment 1

[0021] See also Figures 1 to 8 and Figure 14 to Figure 15 , a precision machining grinding and polishing equipment, comprising a grinder body 2 for grinding and polishing a spline shaft, the grinder body 2 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 nozzle 14 is used to spray coolant, the workbench 11 is mounted with a support movable seat 15, the support movable seat 15 is used to clamp and fix the spline shaft during grinding and polishing, and in the prior art, the workbench 11 is mounted with a moving track, the support movable seat 15 can reciprocate along the moving track, thereby driving the spline shaft on the support movable seat 15 to reciprocate relative to the grinding wheel 13, and the spline shaft moves relative to the grinding wheel 13, characterized in that it also includes: Support rings 2, there are two of the support rings 2, and the two support rings 2 are sleeved on the outside of the spline shaft to be polished, and the two support rings 2 are located outside the grinding wheel 13; 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; 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 the polishing of the spline shaft keyway and the shaft shoulder; 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.

[0022] The debris removal mechanism 4 includes a positioning ring 41 fixedly connected to the support ring 2 at one end, and the positioning ring 41 is sleeved on the outside of the spline shaft to be polished; A plurality of moving grooves 411 are provided around the positioning ring 41, and a moving frame 42 slides through the moving grooves 411. One end of the moving frame 42 close to the spline shaft is fixedly installed with a scraping block 43. The 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 cooperates 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, they can cooperate with each other to synchronously scrape the cooling waste liquid and debris on the outside of the spline shaft. After a plurality of the scraping blocks 43 move along the spline shaft, the debris and cooling waste liquid at the spline shaft keyway and the shaft shoulder are scraped; A moving mechanism 44 for synchronously driving a plurality of moving frames 42 is provided on the positioning ring 41, and the alternating drive mechanism 5 is connected to the moving mechanism 44.

[0023] 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; One end of the positioning shaft 442 away from the positioning plate 441 is fixedly connected to 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 drive mechanism 5.

[0024] Specific implementation process: when the grinding wheel 13 is ready to grind and polish the keyway and shoulder of the spline shaft, first install the spline shaft between the supporting movable seat 15, and then pass one end of the spline shaft through the two supporting rings 2 in sequence, and then the supporting movable seat 15 clamps and fixes the spline shaft. Then, under the support of the supporting movable seat 15, the spline shaft rotates a keyway on it to directly below the grinding wheel 13, and then, the grinding wheel 13 moves down to the keyway, and the supporting movable seat 15 drives the spline shaft on it to move relative to the grinding wheel 13, and the grinding wheel 13 rotates at the same time to grind and polish the keyway and shoulder of the spline shaft, and in the present invention, the rotation direction of the grinding wheel 13 is opposite to the movement 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; Before the grinding wheel 13 is ground, a positioning ring 41 in the moving direction of the spline shaft has a rotating gear 445 on it near the support seat 12 rotated, and when the rotating gear 445 rotates, the outer gear ring 446 is driven to rotate relative to the positioning ring 41, and when the outer gear ring 446 rotates, the multiple rotating gears 445 on it are driven to rotate, and when the rotating gear 445 rotates, the positioning gear 443 at the positioning shaft 442 is driven to rotate, and when the positioning gear 443 rotates, it meshes with the tooth block 444 at the moving frame 42, thereby driving the moving frame 42 to move relative to the spline shaft, until the protrusions 435 of the multiple scraper blocks 43 at the multiple moving frames 42 are all moved to the key slots, and the multiple scraper blocks 43 can cooperate with each other with the multiple key slots, and the multiple scraper blocks 43 at the other support ring 2 do not contact the outer surface of the spline shaft; Therefore, during grinding, multiple scraping blocks 43 facing the moving direction of the spline shaft contact the outer surface of the spline shaft. First, the multiple scraping blocks 43 scrape the keyway of the spline shaft. Then, when the spline shaft moves to the grinding wheel 13, the grinding wheel 13 moves down and then rotates, thereby achieving grinding. 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 multiple scraping blocks 43 have already scraped the debris and cooling waste liquid at the keyway and shoulder. Therefore, after the spline shaft reciprocates, it cooperates with the grinding wheel 13 at the same time, and as the spline shaft rotates, the keyway and shoulder of the spline shaft are fully ground and polished.

[0025] The alternating drive mechanism 5 includes a drive motor 51 installed on the support seat 12, and 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, and the two toggle rods 53 are respectively connected to connecting members 54, and the positions of the toggle rods 53 corresponding to the connecting members 54 are provided with sliding grooves 531, and the connecting members 54 are connected to the rotating gear 445 near the support seat 12.

[0026] The connecting member 54 includes a connecting rod 541 slidably connected to the sliding groove 531, the outer side of the connecting rod 541 is fixedly connected to the limiting frame 542, and one end of the toggle rod 53 slides through the limiting frame 542, the limiting frame 542 is provided with a limiting groove 5421, and a limiting plate 543 is fixedly installed on the support seat 12, and the limiting plate 543 is slidably connected to the limiting groove 5421, and in this embodiment, the limiting plate 543 is U-shaped; A push rack 544 is fixedly connected to one side of the limit frame 542 , and the push rack 544 is meshedly connected to a rotating gear 445 near the support seat 12 .

[0027] Specific implementation process: In the present invention, before the grinding wheel 13 grinds the keyway of the spline shaft, the driving motor 51 rotates a certain angle, so that the rotating disk 52 rotates, and when the rotating disk 52 rotates, the two swing rods 7 on it swing, and when the two toggle rods 53 swing, the limit frame 542 is driven to move through the sliding groove 531 and the connecting rod 541, and because the limit frame 542 is limited by the limit groove 5421 and the limit plate 543, the two limit frames 542 are moved along the vertical plane. The surfaces thereof move downward and upward respectively, and when the limit frame 542 moves, the push rack 544 thereon is synchronously driven to move, so that the two push racks 544 move in opposite directions, and further make the rotating gears 445 at the two positioning rings 41 close to the support seat 12 move in opposite directions respectively, until the multiple scraping blocks 43 along the moving direction of the spline shaft move to the keyway, and the multiple scraping blocks 43 at the other positioning ring 41 are separated from the keyway, thereby achieving the effect of scraping off the debris and cooling waste liquid before grinding the spline shaft. Embodiment 2

[0028] See also Figures 9 to 13 The movable frame 42 has a hollow cavity 421 inside, the support ring 2 has an annular groove 21 inside, the support ring 2 is connected with a liquid supply mechanism 6, and the liquid supply mechanism 6 is used to transport cooling liquid to the annular groove 21 of the support ring 2; The support ring 2 is connected to a plurality of connecting hoses 22, and one end of the connecting hose 22 is connected to the cavity 421 of the moving frame 42; The moving frame 42 is provided with a first through hole 422 at one end close to the scraping block 43, the scraping block 43 is provided with a liquid passing groove 431, and the scraping block 43 is provided with a second through hole 432 that connects the liquid passing groove 431 with the first through hole 422; A plurality of spray holes 433 communicating with the moving groove 411 are formed on one side of the scraping block 43 away from the grinding wheel 13 .

[0029] 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 . An output end of the water pump 62 is connected to a liquid infusion tube 63 , and the other end of the liquid infusion tube 63 is connected to the annular groove 21 .

[0030] The scraper block 43 is slidably connected to a swing rod 7 at the arc guide end 434, and in the present embodiment, the swing shaft 71 is connected by a torsion spring 728 and, when the swing shaft 71 is not affected by an external force, drives the swing rod 7 to be relatively tilted at the arc guide end 434, and the swing shaft 71 is fixedly connected to the swing rod 7, and one end of the swing shaft 71 located inside the liquid passage 431 is connected to a swing member 72.

[0031] 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, a support block 723 is fixedly connected to one end of the support shaft 722 close to the cavity 421, and a plurality of rotating blades 724 are fixedly connected to the outer side of the support block 723; The support shaft 722 is located at one end of the liquid-passing groove 431 and is connected to an irregularly shaped rotating block 725, and a contact shaft 726 is provided on the outer side 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, and a torsion spring 728 is installed on one side of the contact plate 727, and the torsion spring 728 is sleeved on the outer side of the swing shaft 71, and one end of the torsion spring 728 is fixedly connected to the inner wall of the liquid-passing groove 431.

[0032] Specific implementation process: when the scraping block 43 scrapes the debris and cooling waste liquid at the key slot, the water pump 62 is operated, so that the coolant enters the infusion pipe 63 through the liquid supply box 61, and then the coolant is introduced into the annular groove 21 through the infusion pipe 63, and then, it is successively introduced into the cavity 421 of the moving frame 42 through a plurality of connecting hoses 22, and then enters the second through hole 432 through the first through hole 422, and then, it is sprayed out through the spray hole 433 of the scraping block 43, so that the debris is scraped and the sprayed coolant assists in removing the debris; At the same time, under the flow of liquid at the first through hole 422, the multiple rotating blades 724 are driven to rotate, and 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 rotate with the contact shaft 726, it squeezes the contact shaft 726, so that the contact shaft 726 is driven to swing under the connection action of the contact plate 727 and the torsion spring 728, and further the swing shaft 71 drives the swing rod 7 to swing, and the swing rod 7 swings relative to the arc guide end 434, so as to achieve the effect of swinging and removing the debris at the arc guide end 434, and further ensure that the scraping block 43 can fully scrape the debris.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that 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 (2) for grinding and polishing a spline shaft, the grinding machine body (2) 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) is mounted on a support seat (12), and the alternating removal mechanism is used to alternately drive the two debris removal mechanisms (4).

2. The precision machining grinding and polishing equipment according to claim 1, characterized in that: 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 a plurality of moving frames (42), and the alternating driving mechanism (5) is connected to the moving mechanism (44).

3. The precision machining, grinding and polishing equipment according to claim 2, characterized in that: 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 the alternating drive mechanism (5).

4. The precision machining grinding and polishing equipment according to claim 3, characterized in that: 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).

5. The precision machining grinding and polishing equipment according to claim 4, 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).

6. The precision machining, grinding and polishing equipment according to claim 3, 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).

7. The precision machining, grinding and polishing equipment according to claim 6, 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).

8. The precision machining, grinding and polishing equipment according to claim 6, 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.

9. The precision machining grinding and polishing equipment according to claim 8, 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).

10. The precision machining grinding and polishing equipment according to claim 9, 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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