Grinding device capable of preventing splashing and used for crankshaft machining

Abstract

The invention discloses a crankshaft processing grinding device capable of preventing splashing, which comprises a first transmission mechanism and a frame body, the top of the first transmission mechanism is fixedly provided with a fixing mechanism, the top of the frame body is fixedly provided with a second transmission mechanism, and the top of the second transmission mechanism is fixedly provided with grinding equipment. The frame body is fixedly mounted on the side of the first transmission mechanism; the invention relates to the technical field of coping in crankshaft machining. According to the anti-splashing coping device for crankshaft machining, the situation that in the crankshaft machining and coping process, crankshaft breakage possibly occurs, and the safety of workers is harmed is avoided, and meanwhile, through a transparent cover plate used for observation, metal scraps and waste cooling liquid generated in the crankshaft machining and coping process are prevented from splashing; and the purpose of better collecting the generated waste materials for secondary utilization can be achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of crankshaft machining and grinding, and specifically to a grinding device for crankshaft machining that can prevent splashing. Background Art

[0002] The crankshaft is a key rotating component in an engine, usually consisting of parts such as main journals, connecting rod journals, and crank arms. Its main function is to convert the reciprocating motion of the piston into rotational motion, and at the same time convert the pressure of the combustion gas into torque output to drive a vehicle or other equipment to operate. In addition, it can also balance the centrifugal force generated during rotation through structures such as balance weights to ensure the smooth operation of the engine, which is crucial for the performance and reliability of the engine.

[0003] Currently, the crankshaft machining and grinding technology mainly relies on a fixture to hold the crankshaft and uses a grinding device for machining and grinding. During the existing grinding process of the crankshaft, the crankshaft may break during grinding, and coolant and metal chips may splash during grinding, posing a threat to the safety of the staff. Summary of the Invention

[0004] To achieve the above objectives, the present invention is realized through the following technical solutions: A grinding device for crankshaft machining that can prevent splashing, comprising: A first transmission mechanism, at the top of which a fixing mechanism is fixedly installed; A frame, at the top of which a second transmission mechanism is fixedly installed, at the top of the second transmission mechanism a grinding device is fixedly installed, and the frame is fixedly installed on the side of the first transmission mechanism; The grinding device includes a second support slide plate, the bottom of the second support is in transmission connection with the second transmission mechanism through a transmission slider, on the upper surface of the second support slide plate, a third motor and a coolant water tank are respectively fixedly installed, on the side of the coolant water tank away from the third motor, a high-pressure nozzle is fixedly installed. When the crankshaft is machined and ground, the coolant is ejected through the high-pressure nozzle to better cool the crankshaft being machined and ground, and at the same time can also wash away the metal waste generated during the crankshaft machining and grinding to ensure the accuracy of the crankshaft machining. The outer surface of the output shaft of the third motor is in transmission connection with a first belt, a first pulley is disposed through the interior of the coolant water tank, the first pulley is in transmission connection with the third motor through the first belt, and one end of the first pulley away from the first belt is fixedly connected to a grinding disc; The fixing mechanism includes a bottom plate. The upper surface of the bottom plate is respectively provided with a blanking groove and a first sliding groove. The blanking grooves are symmetrically distributed on the surface of the bottom plate with respect to the first sliding groove. A second clamp and a third clamp are respectively slidably connected in the first sliding groove. Through the movable second clamp and third clamp, the staff can adapt to more different models of crankshafts. The upper surface of the bottom plate is fixedly installed with a transparent cover plate for observation. The staff can observe the progress of crankshaft grinding through the transparent cover plate and timely adjust the grinding size of the crankshaft. A grinding groove is provided on the outer surface of the transparent cover plate. A third transmission mechanism is fixedly installed at the side of the upper surface of the bottom plate.

[0005] Preferably, the third transmission mechanism includes a fixed bottom plate. A second sliding rail is fixedly installed at the top of the fixed bottom plate. The grinding device can move on the second sliding rail through a second support slide plate to adjust the size of the grinding disc for processing and grinding the crankshaft. A second motor base is fixedly installed at the side of the top of the frame body. A second motor is fixedly installed at the top of the second motor base.

[0006] Preferably, the third transmission mechanism includes a fixed bottom plate. A second sliding rail is fixedly installed at the top of the fixed bottom plate. A second motor base is fixedly installed at the side of the top of the frame body. A second motor is fixedly installed at the top of the second motor base. By adjusting the rotation speed of the second motor, the second support slide plate is driven to move left and right uniformly, so as to achieve fine grinding of the crankshaft. A second rotating shaft is fixedly installed at the output end of the second motor. A rotating shaft fixing block is fixedly connected to the side of the top of the fixed bottom plate. The end of the second rotating shaft away from the second motor is rotatably connected to the surface of the rotating shaft fixing block. The surface of the second rotating shaft is in transmission connection with the transmission slider at the bottom of the second support slide plate.

[0007] Preferably, the third transmission mechanism includes a transmission box. A fourth motor is fixedly installed at the top of the transmission box. The output shaft of the fourth motor is in transmission connection with a second belt. A second pulley is rotatably connected inside the transmission box. The fourth motor is in transmission connection with the end of the second pulley through the second belt. A first clamp is fixedly installed at the end of the second pulley away from the second belt. The first clamp drives the rotation through the second belt, so as to rotate the crankshaft and make the grinding surface of the crankshaft completely ground.

[0008] Preferably, a first clamping tooth is detachably installed at the end of the first clamp away from the second pulley. A first sliding rod is slidably installed inside the first clamping tooth. A first arc-shaped clamping plate is fixedly installed at the end of the first sliding rod. The arc-shaped clamping plate can better clamp the crankshaft and make the crankshaft fixed more firmly.

[0009] Preferably, the third fixture includes a base slider which is slidably installed in the first chute. The third fixture can move through the first chute to clamp the middle part of the crankshaft. A fixture support plate is fixedly installed on the top of the base slider. A second chute is formed inside the third fixture. An I-shaped fixing block is slidably installed inside the second chute. A second sliding rod is slidably installed inside the I-shaped fixing block. A second arc-shaped clamping plate is fixedly installed at the bottom of the second sliding rod. The chute can adjust the position of the I-shaped fixing block so that the second arc-shaped clamping plate can better fit the crankshaft for fixing.

[0010] Preferably, the second fixture respectively includes a T-shaped sliding plate and a fixture fixing plate. The fixture fixing plate is fixedly installed on the top of the T-shaped sliding plate. The bottom of the T-shaped sliding plate is slidably installed in the first chute through a slider. A fixture body is fixedly installed on the surface of the fixture fixing plate. A second clamping tooth is detachably installed at one end of the fixture body away from the fixture fixing plate. A third sliding rod is fixedly installed inside the second clamping tooth. A third arc-shaped clamping plate is fixedly installed at the end of the third sliding rod. During the machining preparation process, the staff can adjust the movable second fixture to adapt to and clamp crankshafts of different lengths.

[0011] Preferably, the first transmission mechanism includes a transmission mechanism base and a notch. The notch is arranged on the side of the transmission mechanism base, which can better divert and collect the waste liquid generated during the crankshaft grinding process. On both sides of the top of the transmission mechanism base, a first slide rail and a first motor base are respectively fixedly installed. A first slider is slidably connected to the top of the first slide rail. A first support slide plate is fixedly installed on the top of the first slider. A diversion hole is formed on the surface of the first support slide plate, which can better divert the metal chips and coolant waste liquid generated during the machining and grinding of the crankshaft out of the workbench, and at the same time prevent the corrosion of the workbench by the metal chips and coolant waste liquid.

[0012] Preferably, diversion baffles are fixedly installed on both sides of the bottom of the first support slide plate. The first slide rail and the first motor base enclose a closed space. After the waste generated during the crankshaft grinding passes through the diversion baffles and converges, it is diverted and collected through the notch. A first motor is fixedly installed on the top of the first motor base.

[0013] Preferably, the output end of the first motor is fixedly connected to a first rotating shaft through a coupling. A rotating shaft fixing plate is fixedly installed on the top of the transmission mechanism base away from the first motor. The first rotating shaft passes through the first motor base, and the end of the first rotating shaft away from the first motor is rotatably connected to the surface of the rotating shaft fixing plate. The first motor drives the first support slide plate to move left and right in the first slide rail through the first rotating shaft and the first slider, so that the surface of the crankshaft is completely ground during the machining and grinding process. The present invention provides a grinding device for crankshaft processing that can prevent splashing, with the following beneficial effects: First, in the grinding device for crankshaft processing that can prevent splashing, the first support slide plate and the first slide rail on the workbench can better move the crankshaft during the processing and grinding of the crankshaft, achieving precise grinding of the crankshaft. At the same time, the blanking groove and the diversion holes opened on the bottom plate can better guide out the metal waste chips and coolant waste liquid generated during the processing and grinding of the crankshaft from the workbench, and at the same time prevent the corrosion of the workbench by the metal waste chips and coolant waste liquid.

[0014] Second, in the grinding device for crankshaft processing that can prevent splashing, the blanking groove and the diversion holes opened on the bottom plate can conduct and collect the metal waste chips and coolant waste liquid generated during the processing and grinding of the crankshaft, facilitating the secondary utilization of the metal waste chips and coolant waste liquid.

[0015] Third, when clamping the crankshaft for processing and grinding, the first fixture, the third fixture, and the second fixture can firmly clamp the crankshaft and prevent the crankshaft from breaking during the processing and grinding, providing a protection for the staff. At the same time, the second fixture can also clamp crankshafts of different sizes for processing and grinding.

[0016] Fourth, when the crankshaft is being processed and ground, the coolant is sprayed out through the high-pressure nozzle, which can better cool the crankshaft being processed and ground. At the same time, it can also wash away the metal waste chips generated during the processing and grinding of the crankshaft to ensure the accuracy of the crankshaft processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of a grinding device for crankshaft processing that can prevent splashing according to the present invention; Figure 2 is a side schematic diagram of the structure of the present invention; Figure 3 is a schematic structural diagram of the grinding equipment of the present invention; Figure 4 is a schematic structural diagram of the fixing mechanism of the present invention; Figure 5 is a schematic structural diagram of the middle fixture of the crankshaft of the present invention; Figure 6 is a schematic structural diagram of the movable fixture on the right side of the crankshaft of the present invention; Figure 7 is a schematic structural diagram of the transmission device for crankshaft processing of the present invention; Figure 8 is a schematic structural diagram of the interior of the transmission device for crankshaft processing of the present invention.

[0018] In the figure: 1. First transmission mechanism; 101. Base of the transmission mechanism; 102. Base of the first motor; 103. First motor; 104. First support slide plate; 105. First slider; 106. Flow guiding hole; 107. First rotating shaft; 108. Rotating shaft fixing plate; 109. First slide rail; 110. Notch; 111. Flow guiding baffle; 2. Frame; 3. Second transmission mechanism; 31. Fixed bottom plate; 32. Second slide rail; 33. Base of the second motor; 34. Second motor; 35. Second rotating shaft; 36. Rotating shaft fixing block; 4. Grinding equipment; 41. Third motor; 42. Grinding disc; 43. High-pressure spray head; 44. First belt; 45. Cooling liquid water tank; 46. Second support slide plate; 47. First belt pulley; 5. Fixing mechanism; 51. Transparent cover plate; 52. First chute; 53. Third transmission mechanism; 531. Fourth motor; 532. Second belt; 533. Second belt pulley; 534. Transmission box; 535. First fixture; 536. First clamping tooth; 537. First slide bar; 538. First arc-shaped clamping plate; 54. Feeding chute; 55. Bottom plate; 56. Second fixture; 561. T-shaped slide plate; 562. Third slide bar; 563. Third arc-shaped clamping plate; 564. Second clamping tooth; 565. Clamping body; 566. Fixture fixing plate; 57. Third fixture; 571. Base slider; 572. Fixture support plate; 573. Second arc-shaped clamping plate; 574. I-shaped fixing block; 575. Second chute; 576. Second slide bar; 58. Grinding groove. Specific embodiments

[0019] 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] The first embodiment is as Figures 1 to 3 shown. The present invention provides a technical solution: a grinding device for crankshaft processing that can prevent splashing, including: A first transmission mechanism 1, and a fixing mechanism 5 is fixedly installed on the top of the first transmission mechanism 1; A frame 2, a second transmission mechanism 3 is fixedly installed on the top of the frame 2, a grinding device 4 is fixedly installed on the top of the second transmission mechanism 3, and the frame 2 is fixedly installed on the side of the first transmission mechanism 1; The grinding device 4 includes a second support slide plate 46. The bottom of the second support is drivingly connected to the second transmission mechanism 3 through a transmission slider. A third motor 41 and a coolant water tank 45 are fixedly installed on the upper surface of the second support slide plate 46. A high-pressure nozzle 43 is fixedly installed on one side of the coolant water tank 45 away from the third motor 41. The outer surface of the output shaft of the third motor 41 is drivingly connected to a first belt 44. A first pulley 47 is disposed through the interior of the coolant water tank 45. The first pulley 47 is drivingly connected to the third motor 41 through the first belt 44. A grinding disc 42 is fixedly connected to one end of the first pulley 47 away from the first belt 44. The staff turns on and operates the second motor 34 to make the second support slide plate 46 slide back and forth, and at the same time ensure that the grinding disc 42 is aligned with the grinding groove 58 on the outer surface of the transparent cover plate 51 and the high-pressure nozzle 43 extends into the transparent cover plate 51, and then turns off the second motor 34. The output end of the second motor 34 is fixedly installed with a second rotating shaft 35. The third transmission mechanism 53 includes a fixed bottom plate 31. A second slide rail 32 is fixedly installed on the top of the fixed bottom plate 31. A second motor base 33 is fixedly installed at the side of the top of the frame 2. A second motor 34 is fixedly installed on the top of the second motor base 33. The output end of the second motor 34 is fixedly installed with a second rotating shaft 35. A rotating shaft fixing block 36 is fixedly connected to the side of the top of the fixed bottom plate 31. One end of the second rotating shaft 35 away from the second motor 34 is rotatably connected to the surface of the rotating shaft fixing block 36. The surface of the second rotating shaft 35 is drivingly connected to the transmission slider at the bottom of the second support slide plate 46.

[0021] Second Embodiment. On the basis of the first embodiment, please refer to Figures 4 to 6 As shown, the fixing mechanism 5 includes a bottom plate 55. A blanking groove 54 and a first chute 52 are respectively formed on the upper surface of the bottom plate 55. The blanking groove 54 is symmetrically distributed on the surface of the bottom plate 55 with respect to the first chute 52. A second fixture 56 and a third fixture 57 are respectively slidably connected in the first chute 52. A transparent cover plate 51 for observation is fixedly installed on the upper surface of the bottom plate 55. A grinding groove 58 is formed on the outer surface of the transparent cover plate 51. A third transmission mechanism 53 is fixedly installed at the side of the upper surface of the bottom plate 55. The third transmission mechanism 53 includes a transmission box 534. A fourth motor 531 is fixedly installed on the top of the transmission box 534. The output shaft of the fourth motor 531 is drivingly connected to a second belt 532. A second pulley 533 is drivingly connected inside the transmission box 534. The fourth motor 531 is drivingly connected to the end of the second pulley 533 through the second belt 532. A first fixture 535 is fixedly installed at one end of the second pulley 533 away from the second belt 532. A first clamping tooth 536 is detachably installed at one end of the first fixture 535 away from the second pulley 533. A first sliding rod 537 is slidably installed inside the first clamping tooth 536. A first arc-shaped clamping plate 538 is fixedly installed at the end of the first sliding rod 537.

[0022] The second fixture 56 respectively includes a T-shaped slide plate 561 and a fixture fixing plate 566. The fixture fixing plate 566 is fixedly installed on the top of the T-shaped slide plate 561. The bottom of the T-shaped slide plate 561 is slidably installed in the first chute 52 through a slider. A fixture body 565 is fixedly installed on the surface of the fixture fixing plate 566. A second clamping tooth 564 is detachably installed at one end of the fixture body 565 away from the fixture fixing plate 566. A third slide rod 562 is fixedly installed inside the second clamping tooth 564, and a third arc-shaped clamping plate 563 is fixedly installed at the end of the third slide rod 562.

[0023] The third fixture 57 includes a base slider 571. The base slider 571 is slidably installed in the first chute 52. A fixture support plate 572 is fixedly installed on the top of the base slider 571. A second chute 575 is provided inside the third fixture 57. An I-shaped fixing block 574 is slidably installed inside the second chute 575. A second slide rod 576 is slidably installed inside the I-shaped fixing block 574. A second arc-shaped clamping plate 573 is fixedly installed at the bottom of the second slide rod 576. The staff first fixes the crankshaft inside the first fixture 535, the second fixture 56 and the third fixture 57. By adjusting the first slide rod 537 and the second slide rod 576 up and down, the first arc-shaped clamping plate 538, the second arc-shaped clamping plate 573 and the third arc-shaped clamping plate 563 firmly clamp the two ends and the middle part of the crankshaft. Then, the first motor 103 is turned on, and the first support slide plate 104 and the first slider 105 are driven by the first rotating shaft 107 to move left and right until the grinding groove 58 on the transparent cover plate 51 is aligned with the grinding disc 42 on the grinding equipment 4, and then the first motor 103 is turned off. After moving the second fixture 56 so that the part of the crankshaft to be ground is aligned with the grinding groove 58 on the transparent cover plate 51, the transparent cover plate 51 is covered. Then, the staff observes the state of the crankshaft grinding through the transparent cover plate 51, and determines the depth of the grinding of the crankshaft by the grinding disc 42 by adjusting the speed of the second motor 34. When the crankshaft grinding starts, the high-pressure nozzle 43 sprays the coolant accurately on the grinding surface of the crankshaft according to the water pump in the coolant water tank 45, which can quickly degrade the high temperature generated during the grinding of the crankshaft, prevent the dangerous situation of the crankshaft breaking due to excessive temperature. At the same time, a large amount of metal waste chips will be generated during the crankshaft grinding process, and the coolant sprayed by the high-pressure nozzle 43 can also wash away the metal waste chips in time, which can ensure the machining accuracy of the crankshaft.

[0024] The third embodiment, on the basis of the first and second embodiments, please refer to Figures 7 to 8As shown in the figure, the first transmission mechanism 1 includes a transmission mechanism base 101 and a notch 110. The notch 110 is arranged on the side of the transmission mechanism base 101. On both sides of the top of the transmission mechanism base 101, a first slide rail 109 and a first motor base 102 are fixedly installed respectively. A first slider 105 is slidably connected to the top of the first slide rail 109. A first support slide plate 104 is fixedly installed on the top of the first slider 105. A diversion hole 106 is provided on the surface of the first support slide plate 104.

[0025] On both sides of the bottom of the first support slide plate 104, diversion baffles 111 are fixedly installed. The first slide rail 109 and the first motor base 102 enclose a closed space. After the waste generated by crankshaft grinding is collected through the diversion baffles 111, it is diverted and collected through the notch 110. A first motor 103 is fixedly installed on the top of the first motor base 102. The output end of the first motor 103 is fixedly connected to a first rotating shaft 107 through a coupling. A rotating shaft fixing plate 108 is fixedly installed on the top of the transmission mechanism base 101 away from the first motor 103. The first rotating shaft 107 passes through the first motor base 102, and one end of the first rotating shaft 107 away from the first motor 103 is rotatably connected to the surface of the rotating shaft fixing plate 108; during the working process, the coolant sprayed by the high-pressure nozzle 43 and the metal chips washed away can flow into the diversion hole 106 on the first support slide plate 104 through the blanking groove 54 on the bottom plate 55, and then finally flow out through the notch 110 by the diversion baffle 111, which is convenient for collecting the metal chips and coolant waste liquid generated during the crankshaft grinding process for secondary utilization.

[0026] During use, the staff first fix the crankshaft inside the first fixture 535, the second fixture 56 and the third fixture 57. By adjusting the first slide rod 537 and the second slide rod 576 up and down, the first arc-shaped clamping plate 538, the second arc-shaped clamping plate 573 and the third arc-shaped clamping plate 563 firmly clamp both ends and the middle part of the crankshaft. Then, turn on the first motor 103 to drive the first support slide plate 104 and the first slider 105 to move left and right through the first rotating shaft 107 until the grinding groove 58 on the transparent cover plate 51 is aligned with the grinding disc 42 on the grinding equipment 4, and then turn off the first motor 103. When moving the second fixture 56 so that the part of the crankshaft to be ground is aligned with the grinding groove 58 on the transparent cover plate 51, cover the transparent cover plate 51, and then turn on the second motor 34 to drive the second support slide plate 46 to move back and forth through the slider by the second rotating shaft 35 so that the grinding disc 42 is aligned with the grinding groove 58 and can grind the crankshaft normally, and then turn off the second motor 34. At the same time, it is also necessary to ensure that the high-pressure nozzle 43 extends into the transparent cover plate 51.

[0027] When the crankshaft to be ground is fixed on the workbench by the first fixture 535, the second fixture 56 and the third fixture 57, turn on the fourth motor 531. Drive the second belt 532 through the output end of the fourth motor 531, and drive the second pulley 533 to drive the first fixture 535 through the transmission case 534, so that the crankshaft rotates slowly at a suitable speed uniformly within the transparent cover plate 51. Then turn off the fourth motor 531, turn on the third motor 41, drive the first belt 44 through the output end of the third motor 41 to drive the first pulley 47. Subsequently, the first pulley 47 drives the grinding disc 42 to rotate at a high speed through the output rotating shaft, and adjust the grinding disc 42 to reach a suitable rotating speed for grinding the crankshaft.

[0028] After the preparation work is completed, the staff starts to operate. Observe the state of the crankshaft during grinding through the transparent cover plate 51, and determine the depth of grinding of the grinding disc 42 on the crankshaft by adjusting the rotating speed of the second motor 34. When the crankshaft grinding starts, the high-pressure nozzle 43 sprays the coolant accurately on the grinding surface of the crankshaft according to the water pump in the coolant water tank 45, which can quickly degrade the high temperature generated during the crankshaft grinding, prevent the dangerous situation of the crankshaft breaking due to excessive temperature. At the same time, a large amount of metal chips will be generated during the crankshaft grinding process, and the coolant sprayed by the high-pressure nozzle 43 can also wash away the metal chips in time, which can ensure the machining accuracy of the crankshaft.

[0029] During the working process, the coolant sprayed by the high-pressure nozzle 43 and the metal chips washed away can flow into the diversion holes 106 on the first support slide plate 104 through the material discharge groove 54 on the bottom plate 55, and then finally flow out through the notch 110 by the diversion baffle 111, which is convenient for collecting the metal chips and coolant waste liquid generated during the crankshaft grinding process for secondary utilization.

[0030] It should be noted that in this article, 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 terms "including", "comprising" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0031] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate 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 grinding device for crankshaft machining that can prevent splashing, characterized in that, Including: A first transmission mechanism (1), at the top of which a fixing mechanism (5) is fixedly installed; A frame body (2), at the top of which a second transmission mechanism (3) is fixedly installed, at the top of which a grinding device (4) is fixedly installed, and the frame body (2) is fixedly installed at the side of the first transmission mechanism (1); The grinding device (4) includes a second support slide plate (46), the bottom of which is in transmission connection with the second transmission mechanism (3) through a transmission slider. On the upper surface of the second support slide plate (46), a third motor (41) and a coolant water tank (45) are respectively fixedly installed. A high-pressure nozzle (43) is fixedly installed on one side of the coolant water tank (45) away from the third motor (41). A first belt (44) is in transmission connection with the outer surface of the output shaft of the third motor (41). A first pulley (47) is rotatably connected inside the coolant water tank (45). The first pulley (47) is in transmission connection with the third motor (41) through the first belt (44). One end of the first pulley (47) away from the first belt (44) is fixedly connected to a grinding disc (42); The fixing mechanism (5) includes a bottom plate (55), on the upper surface of which a blanking groove (54) and a first chute (52) are respectively formed. The blanking groove (54) is symmetrically distributed on the surface of the bottom plate (55) with respect to the first chute (52). A second clamp (56) and a third clamp (57) are respectively slidably connected in the first chute (52). A transparent cover plate (51) for observation is fixedly installed on the upper surface of the bottom plate (55). A grinding groove (58) is formed on the outer surface of the transparent cover plate (51). A third transmission mechanism (53) is fixedly installed at the side of the upper surface of the bottom plate (55).

2. The grinding device for crankshaft machining capable of preventing splashing according to claim 1, wherein: The third transmission mechanism (53) includes a fixed bottom plate (31), at the top of which a second slide rail (32) is fixedly installed. A second motor base (33) is fixedly installed at the side of the top of the frame body (2). A second motor (34) is fixedly installed at the top of the second motor base (33).

3. A grinding device for crankshaft machining that can prevent splashing according to claim 2, characterized in that: The output end of the second motor (34) is fixedly installed with a second rotating shaft (35). A rotating shaft fixing block (36) is fixedly connected to the side of the top of the fixed bottom plate (31). One end of the second rotating shaft (35) away from the second motor (34) is rotatably connected to the surface of the rotating shaft fixing block (36). The surface of the second rotating shaft (35) is in transmission connection with the transmission slider at the bottom of the second support slide plate (46).

4. A grinding device for crankshaft machining that can prevent splashing according to claim 1, characterized in that: The third transmission mechanism (53) includes a transmission box (534). A fourth motor (531) is fixedly installed on the top of the transmission box (534). The output shaft of the fourth motor (531) is drivingly connected to a second belt (532). A second pulley (533) is rotatably connected inside the transmission box (534). The fourth motor (531) is drivingly connected to the end of the second pulley (533) through the second belt (532). A first clamp (535) is fixedly installed at one end of the second pulley (533) away from the second belt (532).

5. The grinding device for crankshaft machining capable of preventing splashing according to claim 4, characterized in that: A first clamping tooth (536) is detachably installed at one end of the first clamp (535) away from the second pulley (533). A first sliding rod (537) is slidably installed inside the first clamping tooth (536). A first arc-shaped clamping plate (538) is fixedly installed at the end of the first sliding rod (537).

6. The grinding device for crankshaft machining capable of preventing splashing according to claim 1, wherein: The third clamp (57) includes a base slider (571). The base slider (571) is slidably installed in the first chute (52). A clamp support plate (572) is fixedly installed on the top of the base slider (571). A second chute (575) is formed inside the third clamp (57). An I-shaped fixing block (574) is slidably installed inside the second chute (575). A second sliding rod (576) is slidably installed inside the I-shaped fixing block (574). A second arc-shaped clamping plate (573) is fixedly installed at the bottom of the second sliding rod (576).

7. A grinding device for crankshaft machining that can prevent splashing, as described in claim 1, characterized in that: The second clamp (56) respectively includes a T-shaped sliding plate (561) and a clamp fixing plate (566). The clamp fixing plate (566) is fixedly installed on the top of the T-shaped sliding plate (561). The bottom of the T-shaped sliding plate (561) is slidably installed in the first chute (52) through a slider. A clamp body (565) is fixedly installed on the surface of the clamp fixing plate (566). A second clamping tooth (564) is detachably installed at one end of the clamp body (565) away from the clamp fixing plate (566). A third sliding rod (562) is fixedly installed inside the second clamping tooth (564). A third arc-shaped clamping plate (563) is fixedly installed at the end of the third sliding rod (562).

8. A grinding device for crankshaft machining that can prevent splashing, as described in claim 1, characterized in that: The first transmission mechanism (1) includes a transmission mechanism base (101) and a notch (110). The notch (110) is arranged at the side of the transmission mechanism base (101). A first slide rail (109) and a first motor base (102) are respectively fixedly installed on both sides of the top of the transmission mechanism base (101). A first slider (105) is slidably connected to the top of the first slide rail (109). A first support sliding plate (104) is fixedly installed on the top of the first slider (105). A diversion hole (106) is formed on the surface of the first support sliding plate (104).

9. An abrasive grinding device for crankshaft machining that can prevent splashing, as described in claim 8, characterized in that: On both sides of the bottom of the first support slide plate (104), diversion baffles (111) are fixedly installed. The first slide rail (109) and the first motor base (102) enclose a closed space. After the waste generated by crankshaft grinding is collected through the diversion baffles (111), it is diverted and collected through the notch (110). On the top of the first motor base (102), a first motor (103) is fixedly installed.

10. A grinding device for crankshaft machining capable of preventing splashing, as described in claim 9, characterized in that: The output end of the first motor (103) is fixedly connected to a first rotating shaft (107) through a coupling. On the top of the transmission mechanism base (101) far from the first motor (103), a rotating shaft fixing plate (108) is fixedly installed. The first rotating shaft (107) penetrates through the first motor base (102), and one end of the first rotating shaft (107) far from the first motor (103) is rotatably connected to the surface of the rotating shaft fixing plate (108).

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