Environment-friendly machining device for mechanical parts

Abstract

The invention belongs to the technical field of part machining, and discloses a mechanical part machining environment-friendly device which comprises a machine tool body and further comprises a water inlet assembly, a water outlet assembly and a water outlet assembly. The water inlet assembly is installed on the other side of the machine tool body and is arranged opposite to the clamping device. Water is sprayed to the grinding frame through the water inlet assembly and the water spraying assembly, the guide plate is reset under the action of the connecting elastic piece, and the guide plate makes contact with a protrusion on the periphery of the fixing ring in a reciprocating mode, so that the guide plate repeatedly rotates at the hinged position of the grinding frame, the guide plate vibrates, and water on the periphery of the guide plate repeatedly makes contact with the inner wall of the grinding frame in the vibration process; the polishing frame is subjected to heat exchange and cooling through water, the overheating phenomenon caused by long-time polishing of the polishing frame and the polishing wheel is avoided, the service life of the polishing frame and the polishing wheel is prolonged, meanwhile, the phenomenon that cooling water splashes in the nylon round cake polishing process is effectively avoided, and the cleanliness in a machine tool is guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of parts processing, and in particular is an environmental protection device for machining mechanical parts. Background Art

[0002] Nylon discs are round parts made of nylon material. Nylon material has wear resistance, elasticity, insulation, stability, precision and chemical stability. In order to meet the needs of use, nylon disc production usually requires grinding of its exterior, and nylon is usually ground with a grinding wheel. During the long-term grinding process of the existing grinding wheel, it is usually necessary to spray cooling water to cool the grinding wheel to increase the service life of the grinding wheel. Since the grinding wheel needs to rotate quickly, the cooling water splashes under the action of the rotation of the grinding wheel, resulting in cooling water everywhere in the machine tool that is difficult to collect, and at the same time affects the overall environment in the machine tool. Therefore, a mechanical parts processing environmental protection device is proposed. Summary of the invention

[0003] In order to solve the problems raised in the above background technology, the present invention provides an environmental protection device for machining mechanical parts. Cooling water splashes under the action of the rotation of the grinding wheel, causing the cooling water in the machine tool to be everywhere and difficult to collect, affecting the overall environment in the machine tool.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a mechanical parts processing environmental protection device, comprising a machine tool body, a clamping device for clamping nylon round cakes is installed on one side of the machine tool body, and further comprising: A water inlet assembly, the water inlet assembly is installed on the other side of the machine tool body and arranged opposite to the clamping device, and the machine tool body is provided with a driving motor for driving the water inlet assembly; A water spray assembly, the water spray assembly being connected to one end of the water inlet assembly; A grinding assembly, wherein the grinding assembly is fixedly mounted on the outside of the water spray assembly; A drainage assembly, the drainage assembly being arranged on a side of the grinding assembly; A guide assembly, the guide assembly being arranged inside the grinding assembly; Wherein, the grinding assembly comprises a grinding frame fixedly mounted on the outside of the water spray assembly, and a grinding wheel is fixedly mounted on the outside of the grinding frame; The guide assembly includes a guide plate hinged to the inside of the grinding frame, a receiving plate is fixedly installed inside the grinding frame, the receiving plate contacts the inner wall of the guide plate, a connecting spring is connected between the receiving plate and the inner wall of the guide plate, and one end of the guide plate is hinged to the inner wall of the grinding frame; The drainage assembly includes a second docking ring sleeved on the side of the grinding frame, the second docking ring is connected to a fixing ring through a support rod, and protrusions are arranged at equal angles on the outer ring of the fixing ring. One rotating end of the guide plate contacts the protrusion arranged on the outside of the fixing ring.

[0005] Preferably, the water spray assembly comprises a water inlet pipe connected to one end of the water inlet assembly, a spray head is arranged outside the water inlet pipe, a water spray hole is opened at one end of the spray head, and the spray head is located between two adjacent guide plates; The water spray assembly also includes a bracket fixedly mounted inside the nozzle, a guide rod fixedly mounted on the top of the bracket, a guide block is provided on the outer movable sleeve of the guide rod, a tension spring is connected between the guide block and the bracket, and a stopper is provided on the inner wall of the nozzle to limit the guide block.

[0006] Preferably, the water inlet assembly includes a first connecting rod assembled on the output end of the driving motor, the external movable sleeve of the first connecting rod is provided with a docking ring, the outside of the docking ring is connected to a connecting pipe, the connecting pipe is connected to the first connecting rod through a water inlet groove, and a water pump is assembled at the bottom of the connecting pipe.

[0007] Preferably, the water inlet pipe and the first connecting rod are hollow structures, the water inlet pipe and the first connecting rod are connected by bolts, a circular groove for limiting the docking ring is opened on the outside of the first connecting rod, and the water inlet groove is opened in the circular groove.

[0008] Preferably, the guide block is in a truncated cone shape, and the port inside the nozzle is in a conical shape.

[0009] Preferably, a fixing rod is connected to the top of the guide block, a dispersion block is fixedly mounted on one end of the fixing rod, and the dispersion block is in an inverted truncated cone shape.

[0010] Preferably, the fixing rod passes through the water spray hole, the outer diameter of the fixing rod is smaller than the inner diameter of the water spray hole, and the fixing rod and the water spray hole remain coaxial.

[0011] Preferably, the side movable sleeve of the grinding frame is provided with a first docking ring, the side of the first docking ring is connected with a drain pipe, the drain pipe is connected with the inside of the grinding frame through a drainage groove, the side of the second docking ring is fixedly connected with a docking rod, the docking rod is fixedly connected to the machine tool body through bolts, the bottom of the drain pipe is connected with a cooling device, the cooling device is fixedly mounted on the machine tool body, and the water pump is connected with the cooling device.

[0012] Preferably, the first docking ring is movably sleeved on the side of the grinding frame to seal the drainage groove.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The present invention sprays water to the grinding frame through the water inlet assembly and the water spray assembly, and the sprayed water contacts the inner wall of the grinding frame through the space between two adjacent guide plates. At the same time, due to the continuous rotation of the grinding frame and the water spray assembly, the water sprayed during the rotation enters between the guide plate and the grinding frame, and falls into the outer wall of the guide plate under the action of the water's own weight, and the guide plate contacts the outer protrusion of the fixed ring, and pushes the guide plate to rotate at the grinding frame hinge through the outer protrusion of the fixed ring. When the guide plate is separated from the outer protrusion of the fixed ring, the guide plate is reset under the action of the connecting spring sheet, so that the guide plate repeatedly rotates at the grinding frame hinge through the outer protrusion of the fixed ring, and the guide plate vibrates. During the vibration, the water on the outer periphery of the guide plate repeatedly contacts the inner wall of the grinding frame, and the grinding frame is cooled by heat exchange through water, so that the grinding frame and the grinding wheel are prevented from overheating due to long-term grinding, and the service life of the grinding frame and the grinding wheel is improved. At the same time, the phenomenon of cooling water splashing during the grinding of nylon round cakes is effectively avoided, and the cleanliness in the machine tool is ensured. The present invention drives the grinding component and the water spray component to rotate by driving the motor. Due to the different grinding speeds of different workpiece materials, the faster the grinding wheel and the grinding frame rotate, the higher the heat generated. Under the action of centrifugal force, the guide block is pushed to move toward the water spray end of the nozzle to stretch the tension spring. During the movement, the guide rod is used to improve the stability of the movement of the guide block. The guide block moves toward the water spray end of the nozzle to shorten the distance between the nozzle and the guide block. By shortening the distance between the inner walls of the nozzle, the water spray speed is increased, and the heat dissipation efficiency of the grinding frame is improved by high water flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall appearance structure of the present invention; Figure 2 This is a schematic diagram of the docking structure between the drainage assembly of the present invention and the machine tool body; Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention; Figure 4 For the present invention Figure 3 The enlarged structural diagram at B in the middle; Figure 5 This is a schematic diagram of the coordination structure of the drainage component and the grinding component of the present invention; Figure 6 It is a schematic diagram of the coordination structure of the water spray assembly, the drainage assembly and the guide assembly of the present invention; Figure 7 This is a schematic diagram of the internal structure of the grinding assembly of the present invention; Figure 8 For the present invention Figure 7 The enlarged structural diagram at A in the middle; Fig. 9 For the present invention Figure 7 The enlarged structural diagram at C in the middle; Fig.10 For the present invention Figure 7 Enlarged structural diagram at point D in the middle.

[0015] In the figure: 1. machine tool body; 2. clamping device; 3. grinding assembly; 31. grinding wheel; 32. grinding frame; 33. drainage groove; 4. water inlet assembly; 41. docking ring; 42. first connecting rod; 43. water inlet groove; 44. connecting pipe; 45. water pump; 5. drainage assembly; 51. drainage pipe; 52. cooling device; 53. first docking ring; 54. second connecting rod; 55. second docking ring; 56. docking rod; 57. support rod; 58. fixing ring; 6. water spray assembly; 61. water inlet pipe; 611. fixing rod; 612. dispersion block; 62. nozzle; 63. bracket; 64. tension spring; 65. guide block; 66. guide rod; 67. water spray hole; 68. stopper; 7. guide assembly; 71. guide plate; 72. receiving plate; 73. connecting spring. DETAILED DESCRIPTION

[0016] 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.

[0017] like Figures 1 to 10 As shown, the present invention provides an environmental protection device for machining mechanical parts, comprising a machine tool body 1, a clamping device 2 for clamping nylon round cakes is installed on one side of the machine tool body 1, and further comprising: A water inlet assembly 4, which is installed on the other side of the machine tool body 1 and arranged opposite to the clamping device 2. A driving motor for driving the water inlet assembly 4 is arranged on the machine tool body 1; A water spray assembly 6, which is connected to one end of the water inlet assembly 4; A grinding assembly 3, wherein the grinding assembly 3 is fixedly mounted on the outside of the water spray assembly 6; A drainage component 5, which is arranged on the side of the grinding component 3; A guide assembly 7, wherein the guide assembly 7 is arranged inside the grinding assembly 3; The grinding assembly 3 includes a grinding frame 32 fixedly mounted on the outside of the water spray assembly 6, and a grinding wheel 31 is fixedly mounted on the outside of the grinding frame 32; The guide assembly 7 includes a guide plate 71 hinged to the inside of the grinding frame 32, a receiving plate 72 is fixedly installed inside the grinding frame 32, the receiving plate 72 contacts the inner wall of the guide plate 71, a connecting spring 73 is connected between the receiving plate 72 and the inner wall of the guide plate 71, one end of the guide plate 71 is hinged to the inner wall of the grinding frame 32, and the distance between the outer wall of the guide plate 71 and the inner wall of the grinding frame 32 gradually decreases along the circumferential direction; The drainage assembly 5 includes a second docking ring 55 sleeved on the side of the grinding frame 32, the second docking ring 55 is connected to a fixing ring 58 through a support rod 57, and the outer ring of the fixing ring 58 is provided with protrusions at equal angles, and one end of the guide plate 71 rotates to contact the protrusions provided on the outside of the fixing ring 58; The water spray assembly 6 includes a water inlet pipe 61 connected to one end of the water inlet assembly 4 . A spray head 62 is disposed outside the water inlet pipe 61 . A water spray hole 67 is formed at one end of the spray head 62 . The spray head 62 is located between two adjacent guide plates 71 .

[0018] The nylon round cake is clamped and fixed by the clamping device 2 and pushed toward the grinding component 3, so that the nylon round cake is sleeved on the outside of the grinding wheel 31, and the water inlet component 4, the water spray component 6, the grinding frame 32 and the grinding wheel 31 are driven by the driving motor to rotate to grind the inner wall of the nylon round cake. During the grinding process, the temperature of the grinding wheel 31 and the grinding frame 32 continues to rise, and the water inlet component 4 sprays water to the grinding frame 32 through the water spray component 6. The sprayed water contacts the inner wall of the grinding frame 32 through the space between two adjacent guide plates 71. At the same time, since the grinding frame 32 and the water spray component 6 continue to rotate, the water sprayed during the rotation enters between the guide plate 71 and the grinding frame 32, and falls into the outer wall of the guide plate 71 under the action of the water's own weight, while the grinding frame 32 and the receiving plate 72 continue to rotate. During the rotation of the guide plate 71, it contacts the outer protrusion of the fixed ring 58. The guide plate 71 is pushed to rotate at the hinge of the grinding frame 32 through the outer protrusion of the fixing ring 58, and when the connecting spring piece 73 is stretched and the guide plate 71 is disengaged from the outer protrusion of the fixing ring 58, the guide plate 71 is reset and contacts with the receiving plate 72 under the action of the connecting spring piece 73, so that the guide plate 71 repeatedly rotates at the hinge of the grinding frame 32 through the guide plate 71 and the outer protrusion of the fixing ring 58, so that the guide plate 71 vibrates. During the vibration, the water on the outer periphery of the guide plate 71 repeatedly contacts the inner wall of the grinding frame 32, and the grinding frame 32 is cooled by heat exchange through water, so that the grinding frame 32 and the grinding wheel 31 are prevented from overheating due to long-term grinding, thereby increasing the service life of the grinding frame 32 and the grinding wheel 31, and at the same time effectively avoiding the phenomenon of cooling water splashing during the grinding of nylon round cakes, thereby ensuring the cleanliness inside the machine tool.

[0019] like Figure 3-Figure 5As shown, the water inlet assembly 4 includes a first connecting rod 42 mounted on the output end of the driving motor, the outer sleeve of the first connecting rod 42 is provided with a docking ring 41, the outer portion of the docking ring 41 is connected with a connecting pipe 44, the connecting pipe 44 is connected with the first connecting rod 42 through a water inlet groove 43, and a water pump 45 is mounted at the bottom of the connecting pipe 44; The water inlet pipe 61 and the first connecting rod 42 are hollow structures, and the water inlet pipe 61 and the first connecting rod 42 are connected by bolts. A circular groove for limiting the docking ring 41 is opened on the outside of the first connecting rod 42, and the water inlet groove 43 is opened in the circular groove.

[0020] The water pump 45 draws water through the connecting pipe 44 and the water inlet groove 43 and injects it into the docking ring 41 and the water inlet pipe 61, and sprays it into the grinding frame 32 through the nozzle 62. The driving motor drives the first connecting rod 42, the water inlet pipe 61 and the grinding assembly 3 to rotate to grind the nylon round cake. During the rotation of the first connecting rod 42, the docking ring 41 is always fixed, and water can normally enter the first connecting rod 42 and the water inlet pipe 61 through the water inlet groove 43.

[0021] like Fig. 9 As shown, the water spray assembly 6 includes a bracket 63 fixed inside the spray head 62, a guide rod 66 is fixed on the top of the bracket 63, a guide block 65 is movably sleeved outside the guide rod 66, a tension spring 64 is connected between the guide block 65 and the bracket 63, and a stopper 68 is provided on the inner wall of the spray head 62 to limit the guide block 65; The guide block 65 is in a truncated cone shape, and the port inside the nozzle 62 is in a cone shape.

[0022] Water is injected into the water inlet pipe 61 through the water inlet assembly 4, the water enters the nozzle 62 and is sprayed into the grinding frame 32 through the water spray hole 67, and the grinding assembly 3 and the water spray assembly 6 are driven by the motor to rotate. Due to the different grinding speeds of different workpiece materials, the faster the grinding wheel 31 and the grinding frame 32 rotate, the higher the heat generated. Under the action of centrifugal force, the guide block 65 is pushed to move toward the water spray end of the nozzle 62 to stretch the tension spring 64. During the movement, the guide rod 66 is used to improve the stability of the movement of the guide block 65. The guide block 65 moves toward the water spray end of the nozzle 62 to shorten the distance between the nozzle 62 and the guide block 65. By shortening the inner wall spacing of the nozzle 62, the water spray speed is increased, and the heat dissipation efficiency of the grinding frame 32 is improved by high water flow.

[0023] like Fig.10 As shown, the top of the guide block 65 is connected to a fixing rod 611, and one end of the fixing rod 611 is fixed with a dispersion block 612, which is in the shape of an inverted truncated cone; The fixing rod 611 passes through the water spray hole 67 , the outer diameter of the fixing rod 611 is smaller than the inner diameter of the water spray hole 67 , and the fixing rod 611 and the water spray hole 67 remain coaxial.

[0024] The water in the nozzle 62 is sprayed out through the water spray hole 67, and the sprayed water is dispersed to the surroundings under the guidance of the inclined surface of the dispersion block 612. The dispersed water can evenly contact the inner wall of the grinding frame 32, which can improve the heat dissipation effect of the grinding frame 32 and effectively prevent the grinding frame 32 and the grinding wheel 31 from overheating.

[0025] like Figure 1 , Figure 3 and Figure 5 As shown, the side of the grinding frame 32 is movably sleeved with a first docking ring 53, the side of the first docking ring 53 is connected to a drain pipe 51, the drain pipe 51 is communicated with the inside of the grinding frame 32 through the drain groove 33, the side of the second docking ring 55 is fixedly connected to a docking rod 56, the docking rod 56 is fixedly connected to the machine tool body 1 through bolts, the bottom of the drain pipe 51 is connected to a cooling device 52, the cooling device 52 is fixedly mounted on the machine tool body 1, and the water pump 45 is communicated with the cooling device 52; The first docking ring 53 is movably sleeved on the side of the grinding frame 32 to block the drainage groove 33 .

[0026] The grinding frame 32 is cooled by spraying water through the water spraying assembly 6. The sprayed water gathers at the bottom of the grinding frame 32 under its own weight, enters the cooling device 52 through the drainage groove 33 and the drainage pipe 51 for cooling, and is then injected into the grinding frame 32 through the water pump 45 for circulation.

[0027] The working principle and use process of the present invention: The nylon round cake is clamped and fixed by the clamping device 2 and pushed toward the grinding component 3, so that the nylon round cake is sleeved on the outside of the grinding wheel 31, and the water inlet component 4, the water spray component 6, the grinding frame 32 and the grinding wheel 31 are driven by the driving motor to rotate to grind the inner wall of the nylon round cake. During the grinding process, the temperature of the grinding wheel 31 and the grinding frame 32 continues to rise, and the water pump 45 pumps water through the connecting pipe 44 and the water inlet groove 43 to inject it into the docking ring 41 and the water inlet pipe 61, and then enters the nozzle 62 through the bracket 63 and is sprayed out through the water spray hole 67. The sprayed water is dispersed to the surroundings under the guidance of the inclined surface of the dispersion block 612. The dispersed water can evenly contact the inner wall of the grinding frame 32, which can improve the heat dissipation effect of the grinding frame 32. The sprayed water contacts the inner wall of the grinding frame 32 through the two adjacent guide plates 71. At the same time, due to the continuous rotation of the grinding frame 32 and the water spray component 6, the water sprayed during the rotation The water then moves along the guide plate 71 and the polishing frame 32 to move along the guide plate 71 and the polishing frame 32 to move along the guide plate 71 and the polishing frame 32 to move along the guide plate 71. At the same time, due to the different grinding speeds of different workpiece materials, the faster the grinding wheel 31 and the grinding frame 32 rotate, the higher the heat generated. Under the action of centrifugal force, the guide block 65 is pushed to move toward the water spraying end of the nozzle 62 to stretch the tension spring 64. During the movement, the guide rod 66 is used to improve the stability of the movement of the guide block 65. The guide block 65 moves toward the water spraying end of the nozzle 62, shortening the distance between the nozzle 62 and the guide block 65. By shortening the distance between the inner walls of the nozzle 62, the water spraying speed is increased, and the heat dissipation efficiency of the grinding frame 32 is improved by high water flow. The sprayed water gathers at the bottom of the grinding frame 32 under its own weight, enters the cooling device 52 through the drainage groove 33 and the drainage pipe 51 for cooling, and is then injected into the grinding frame 32 through the water pump 45 for circulation.

[0028] 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.

[0029] 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 machine parts processing environmental protection device, comprising a machine tool body (1), a clamping device (2) for clamping nylon round cakes being installed on one side of the machine tool body (1), Features: Also includes, a water inlet assembly (4), the water inlet assembly (4) being mounted on the other side of the machine tool body (1) and arranged opposite to the clamping device (2), the machine tool body (1) being provided with a drive motor for driving the water inlet assembly (4); A water spray assembly (6), the water spray assembly (6) being connected to one end of the water inlet assembly (4); A grinding assembly (3), wherein the grinding assembly (3) is fixedly mounted on the outside of the water spray assembly (6); A drainage component (5), the drainage component (5) being arranged on a side of the grinding component (3); A guide component (7), wherein the guide component (7) is arranged inside the grinding component (3); The grinding assembly (3) comprises a grinding frame (32) fixedly mounted on the outside of the water spray assembly (6), and a grinding wheel (31) is fixedly mounted on the outside of the grinding frame (32); The guide assembly (7) comprises a guide plate (71) hingedly connected to the inside of the grinding frame (32); a receiving plate (72) is fixedly installed inside the grinding frame (32); the receiving plate (72) contacts the inner wall of the guide plate (71); a connecting spring (73) is connected between the receiving plate (72) and the inner wall of the guide plate (71); one end of the guide plate (71) is hingedly connected to the inner wall of the grinding frame (32); The drainage assembly (5) comprises a second docking ring (55) sleeved on the side of the grinding frame (32), the second docking ring (55) being connected to a fixing ring (58) via a support rod (57), the outer periphery of the fixing ring (58) being provided with protrusions at equal angles in a circular shape, and one rotating end of the guide plate (71) being in contact with the protrusions provided on the outside of the fixing ring (58); The water spray assembly (6) comprises a water inlet pipe (61) connected to one end of the water inlet assembly (4); a spray head (62) is arranged outside the water inlet pipe (61); a water spray hole (67) is opened at one end of the spray head (62); and the spray head (62) is located between two adjacent guide plates (71); The water spray assembly (6) further comprises a bracket (63) fixedly mounted inside the spray head (62); a guide rod (66) is fixedly mounted on the top of the bracket (63); a guide block (65) is movably sleeved outside the guide rod (66); a tension spring (64) is connected between the guide block (65) and the bracket (63); and a stopper (68) is provided on the inner wall of the spray head (62) for limiting the position of the guide block (65).

2. The environmental protection device for machining mechanical parts according to claim 1, Features: The water inlet assembly (4) comprises a first connecting rod (42) mounted on the output end of the driving motor, the first connecting rod (42) being movably sleeved with a docking ring (41) on its exterior, the docking ring (41) being connected to a connecting pipe (44) on its exterior, the connecting pipe (44) being connected to the interior of the first connecting rod (42) via a water inlet groove (43), and a water pump (45) being mounted on the bottom of the connecting pipe (44).

3. The environmental protection device for machining mechanical parts according to claim 2, Features: The water inlet pipe (61) and the first connecting rod (42) are hollow structures. The water inlet pipe (61) and the first connecting rod (42) are connected to each other by bolts. A circular groove for limiting the butt ring (41) is provided on the outside of the first connecting rod (42), and the water inlet groove (43) is provided in the circular groove.

4. The environmental protection device for machining mechanical parts according to claim 3, Features: The guide block (65) is in the shape of a truncated cone, and the port inside the nozzle (62) is in the shape of a cone.

5. The environmental protection device for machining mechanical parts according to claim 4, Features: The top of the guide block (65) is connected to a fixing rod (611), one end of the fixing rod (611) is fixedly mounted with a dispersion block (612), and the dispersion block (612) is in the shape of an inverted truncated cone.

6. The environmental protection device for machining mechanical parts according to claim 5, Features: The fixing rod (611) passes through the water spray hole (67); the outer diameter of the fixing rod (611) is smaller than the inner diameter of the water spray hole (67); and the fixing rod (611) and the water spray hole (67) remain coaxial.

7. The environmental protection device for machining mechanical parts according to claim 6, Features: A first docking ring (53) is provided on the side of the grinding frame (32), the side of the first docking ring (53) is connected to a drainage pipe (51), the drainage pipe (51) is communicated with the inside of the grinding frame (32) through a drainage groove (33), the side of the second docking ring (55) is fixedly connected to a docking rod (56), the docking rod (56) is fixedly connected to the machine tool body (1) through bolts, the bottom of the drainage pipe (51) is connected to a cooling device (52), the cooling device (52) is fixedly mounted on the machine tool body (1), and the water pump (45) is communicated with the cooling device (52).

8. The environmental protection device for machining mechanical parts according to claim 7, Features: The first docking ring (53) is movably sleeved on the side of the grinding frame (32) for sealing the drainage groove (33).

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