Hole grinding device for oil pump plunger sleeve machining

Abstract

The hole grinding device for oil pump plunger sleeve machining belongs to the technical field of metal machining and comprises a machine tool, the inner side and the outer side of a rotating rod are jointly provided with an adjusting component, the adjusting component comprises a fixing cylinder fixedly connected to the lower end of the rotating rod, a drill bit is detachably installed on the lower side of the fixing cylinder, and a movable groove is formed in the fixing cylinder; according to the device, after a pressed block is pushed, a cutting blade is pushed out from the interior of a guide groove, holes with different hole diameters are formed in different workpieces in an expanding mode, and due to the fact that the cutting blade can conduct hole expanding on the inner walls of the workpieces after being pushed out from the interior of the guide groove, the inner walls of the workpieces can be subjected to hole expanding; when different workpieces are subjected to reaming, the length of the part, pushed out of the guide groove, of the cutting blade can be adjusted, the different lengths are matched with the different workpieces and different hole diameter requirements, it is avoided that a drill bit or a machine tool is frequently replaced when the different workpieces or the different hole diameters are machined, and then the machining efficiency of the workpieces is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of metal processing, and more specifically, to a hole grinding device for processing oil pump plunger sleeves. Background Art

[0002] The oil pump plunger sleeve is a key component in the fuel injection system. It mainly cooperates with the plunger to jointly complete the tasks of fuel pressurization and injection. In the fuel pump, the plunger sleeve is usually a precision-machined cylindrical part, and its inner part forms a mating pair with the plunger. The performance of the oil pump plunger sleeve directly affects the efficiency and stability of the fuel injection system. Therefore, it is usually made of materials with high strength, high hardness and good wear resistance, such as alloy steel or stainless steel, etc. At the same time, in order to ensure its precise fit and good sealing performance, the inner surface of the plunger sleeve usually needs to be processed by high-precision processing techniques such as precision grinding or honing.

[0003] The hole grinding device for the oil pump plunger sleeve is a special equipment for precision grinding the inner hole of the oil pump plunger sleeve. The design purpose of this device is to ensure that the dimensional accuracy, shape accuracy and surface roughness of the inner hole of the plunger sleeve meet the requirements, so as to ensure the working efficiency and stability of the oil pump. The hole grinding device for the oil pump plunger sleeve consists of parts such as a grinding mechanism and a workpiece clamping mechanism. Among them, the grinding mechanism is the core part of the device, usually composed of a grinding head, a grinding wheel and a drive system. The selection of the grinding wheel and the setting of the grinding parameters need to be determined according to the material characteristics and processing requirements of the plunger sleeve. During the grinding process, the grinding wheel contacts the inner hole of the plunger sleeve at a certain speed and pressure, and removes materials through grinding to achieve the required size and shape. In the prior art, during the grinding process of the oil pump plunger sleeve, due to the different processing requirements of the oil pump plunger sleeve, the grinding hole diameters are different. If there are differences in the grinding hole diameters required for the oil pump plunger sleeves within the same batch, it is necessary to replace the grinding head or the processing machine tool. At this time, a lot of time will be wasted, which will affect the processing efficiency of the oil pump plunger sleeve. Summary of the Invention

[0004] Aiming at the problems existing in the prior art, the purpose of the present invention is to provide a hole grinding device for processing oil pump plunger sleeves.

[0005] To solve the above problems, the present invention adopts the following technical solutions, which can realize that after the cutting blade is pushed out from the inside of the guide groove, the inner wall of the workpiece can be reamed, and the length of the cutting blade pushed out from the guide groove can be adjusted, and different lengths are adapted to different workpieces and different hole diameter requirements.

[0006] A grinding hole device for processing an oil pump plunger sleeve, comprising a machine tool and a control console arranged on the upper right side of the machine tool. An adjusting member is arranged on the upper back side of the machine tool. A driving motor is arranged inside the adjusting member. The output end of the driving motor is fixedly connected with a rotating rod. An adjusting component is jointly arranged on the inner and outer sides of the rotating rod; The adjusting component includes a fixed cylinder fixedly connected to the lower end of the rotating rod. A drill bit is detachably installed on the lower side of the fixed cylinder. An activity groove is arranged inside the fixed cylinder. An electric push rod is arranged on the upper side inside the activity groove. The telescopic end of the electric push rod is fixedly connected with a pushing column. The outer surface of the fixed cylinder is penetrated and arranged in an annular array with guide grooves. A pressure-receiving block is slidably connected inside the guide groove. The other side of the pressure-receiving block is fixedly connected with a cutting blade. A first pressure spring is fixedly connected between the pressure-receiving block and the guide groove in a parallel arrangement.

[0007] Furthermore, the adjusting member includes a cylinder arranged inside the upper back side of the machine tool. The telescopic end of the cylinder is fixedly connected with a support platform. Limiting rods are fixedly connected in a parallel arrangement on the upper back side of the machine tool. The support platform is slidably connected to the outside of the limiting rods. The support platform wraps the outside of the driving motor.

[0008] Furthermore, the side of the pressure-receiving block close to the pushing column is in sliding extrusion contact with the outer surface of the pushing column. The cutting blade is slidably connected inside the guide groove. The side of the pressure-receiving block close to the pushing column is trapezoidal. The pushing column is hourglass-shaped. The pushing column is slidably connected inside the activity groove.

[0009] Furthermore, a diameter measuring component is arranged on the upper end of the machine tool. The diameter measuring component includes a fixed seat fixedly connected to the center of the upper end of the machine body in a parallel arrangement.

[0010] Furthermore, a sliding groove is arranged on the upper side of the fixed seat. A slider is slidably connected inside the sliding groove. Second pressure springs are fixedly connected to the sides of the sliders far away from each other in a left-right correspondence. The other sides of the second pressure springs are fixedly connected with extrusion discs. First pressure sensors are arranged on the sides of the sliding grooves far away from each other in a left-right correspondence. The opposite surfaces of the extrusion discs and the first pressure sensors are in extrusion contact. A clamping ring is fixedly connected to the upper side of the slider. The clamping rings in a left-right correspondence jointly wrap the outside of the fixed cylinder.

[0011] Furthermore, a scale bar is fixedly connected to the other side of the clamping ring. The inner surface of the clamping ring is in sliding extrusion contact with the outer surface of the fixed cylinder. The extrusion disc is slidably connected inside the sliding groove. The first pressure sensor is electrically connected to an external power supply.

[0012] Furthermore, a detection component is arranged on the outer side of the rotating rod. The detection component includes a fixed sleeve fixedly connected to the upper back side of the machine tool.

[0013] Further, a moving groove is formed in the inner side wall of the fixed sleeve. A moving ring is slidably connected inside the moving groove. Embedding grooves are formed in an annular array on the inner surface of the moving ring. A third compression spring is fixedly connected between the upper side of the moving ring and the inside of the moving groove. After the fixed cylinder moves upward, it is in sliding contact with the inner surface of the fixed sleeve. After the fixed sleeve is sleeved outside the fixed cylinder, it is slidably connected inside the moving ring. After the fixed cylinder moves upward, the cutting blade is pushed out of the guiding groove. After the cutting blade is pushed out of the guiding groove, it is in sliding contact inside the embedding groove. The shape of the cutting blade is adapted to the shape of the embedding groove.

[0014] Further, a warning assembly is provided jointly on the inside and outside of the fixed sleeve. The warning assembly includes guiding grooves penetrating through the left and right sides of the fixed sleeve.

[0015] Further, the moving groove communicates with the guiding groove. Moving blocks are fixedly connected to both the left and right sides of the moving ring. The moving blocks are slidably connected inside the guiding grooves. Second pressure sensors are provided on both the left and right sides of the outer surface of the fixed sleeve. The lower sides of the moving blocks are in pressing contact with the second pressure sensors. The second pressure sensors are electrically connected to an external power source. A warning light is provided on the front side of the console.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) In the present invention, after the pressed block is pushed, the cutting blade is pushed out of the guiding groove, and holes with different apertures are expanded in different workpieces. Since the cutting blade can ream the inner wall of the workpiece after being pushed out of the guiding groove, when reaming different workpieces, the length of the cutting blade pushed out of the guiding groove can be adjusted, and different lengths are adapted to different workpieces and different aperture requirements, avoiding frequent replacement of drills or machine tools when processing different workpieces or different apertures, thereby ensuring the processing efficiency of the workpiece.

[0017] (2) In the present invention, during the process of the cutting blade being pushed by the clamping ring, the aperture of the workpiece ground by the cutting blade is detected. Since the distance that the cutting blade is pushed out can be detected in real time by the clamping ring, and the movement of the cutting blade is controlled in a timely manner according to the detected data, accurately controlling the aperture of the inner wall of the workpiece reamed by the cutting blade, and being applicable to the processing of different workpieces at the same time, further ensuring the processing efficiency of the workpiece.

[0018] (3) In the present invention, the waste chips remaining on the surface of the cutting blade are removed by the moving ring, and at the same time, whether the surface of the cutting blade is deformed or distorted can also be detected. Since after the cutting blade finishes processing the workpiece, it will continue to move upward, scraping the waste chips adhered to the surface of the cutting blade, and at the same time, the surface of the cutting blade will also be detected to facilitate timely discovery of whether the surface of the cutting blade is deformed or distorted. Brief Description of the Drawings

[0019] Figure 1 is a schematic structural diagram of the present invention; Figure 2 is a schematic sectional structural diagram of the present invention; Figure 3 is a schematic sectional structural diagram of the fixing seat of the present invention; Figure 4 is a schematic sectional structural diagram of the snap ring of the present invention; Figure 5 is a schematic sectional structural diagram of the fixing sleeve of the present invention; Figure 6 is a schematic front sectional view of the fixing cylinder of the present invention; Figure 7 is a schematic top sectional view of the fixing cylinder of the present invention; Figure 8 is a schematic sectional structural diagram of the guide groove of the present invention.

[0020] Explanation of the reference numerals in the drawings: 1. Machine tool; 11. Console; 12. Adjusting member; 121. Cylinder; 122. Support table; 123. Limit rod; 13. Driving motor; 14. Rotating rod; 2. Adjusting component; 21. Fixing cylinder; 22. Drill bit; 23. Movable groove; 24. Electric push rod; 25. Pushing column; 26. Guide groove; 27. Compressed block; 28. First pressure spring; 29. Cutting blade; 3. Diameter measuring component; 31. Fixing seat; 32. Sliding groove; 33. Slider; 34. Second pressure spring; 341. Extrusion disc; 35. First pressure sensor; 36. Scale bar; 37. Snap ring; 38. Detection component; 381. Fixing sleeve; 382. Moving ring; 383. Moving groove; 384. Third pressure spring; 385. Embedding groove; 39. Warning component; 391. Guide groove; 392. Moving block; 393. Second pressure sensor; 394. Warning lamp. Detailed Description of the Invention

[0021] 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.

[0022] Please refer to Figures 1 to 8, a hole grinding device for processing oil pump plunger sleeves, comprising a machine tool 1 and a control console 11 arranged on the upper right side of the machine tool 1. An adjusting member 12 is arranged on the upper back side of the machine tool 1. A driving motor 13 is arranged inside the adjusting member 12. The output end of the driving motor 13 is fixedly connected with a rotating rod 14. An adjusting component 2 is jointly arranged on the inner and outer sides of the rotating rod 14; The adjusting component 2 includes a fixed cylinder 21 fixedly connected to the lower end of the rotating rod 14. A drill bit 22 is detachably installed on the lower side of the fixed cylinder 21. An activity groove 23 is opened inside the fixed cylinder 21. An electric push rod 24 is arranged on the upper side inside the activity groove 23. The telescopic end of the electric push rod 24 is fixedly connected with a pushing column 25. A guiding groove 26 is penetrated and arranged on the outer surface of the fixed cylinder 21 in a circumferential array. A pressure-receiving block 27 is slidably connected inside the guiding groove 26. The other side of the pressure-receiving block 27 is fixedly connected with a cutting blade 29. A first pressure spring 28 is fixedly connected between the pressure-receiving block 27 and the guiding groove 26 in a parallel arrangement.

[0023] The adjusting member 12 includes a cylinder 121 arranged inside the upper back side of the machine tool 1. The telescopic end of the cylinder 121 is fixedly connected with a support platform 122. Limiting rods 123 are fixedly connected in a parallel arrangement on the upper back side of the machine tool 1. The support platform 122 is slidably connected to the outer side of the limiting rods 123. The support platform 122 wraps the outside of the driving motor 13.

[0024] One side of the pressure-receiving block 27 close to the pushing column 25 is in sliding extrusion contact with the outer surface of the pushing column 25. The cutting blade 29 is slidably connected inside the guiding groove 26. One side of the pressure-receiving block 27 close to the pushing column 25 is trapezoidal. The pushing column 25 is hourglass-shaped. The pushing column 25 is slidably connected inside the activity groove 23.

[0025] By adopting the above technical solution, the electric push rod 24 arranged in the movable groove 23 inside the fixed cylinder 21 is started, so that the electric push rod 24 pushes the push column 25 downward. The pressure block 27 originally fixed to the cutting blade 29 is located in the concave area outside the push column 25. As the push column 25 moves downward, the push column 25 squeezes the inclined surface of the pressure block 27, causing the pressure block 27 to move and driving the cutting blade 29 to slide inside the guide groove 26 until the cutting blade 29 is pushed out of the guide groove 26. Subsequently, the cylinder 121 above the machine tool 1 is started through the console 11 to pull the support table 122 downward. As the support table 122 slides outside the limit rod 123, the support table 122 also drives the drive motor 13 to move downward. During this process, since the rotating rod 14 fixed to the drive motor 13 is fixed with the fixed cylinder 21, when the drive motor 13 drives the rotating rod 14 to rotate, the rotating rod 14 will drive the fixed cylinder 21 and the drill bit 22 below it to rotate. If the drill bit 22 in the rotation process contacts the inner wall of the workpiece, the drill bit 22 will grind the inner wall of the workpiece. As the cylinder 121 continues to drive the support table 122 downward, the drill bit 22 will gradually enter the deep part of the workpiece. When the cutting blade 29 extending from the inside of the guide groove 26 contacts the inner wall of the workpiece, the aperture of the inner wall of the workpiece will be enlarged. The more the cutting blade 29 extends out, the larger the aperture of the workpiece reaming will be, so that the cutting blade 29 can be suitable for workpieces with different requirements. After the workpiece reaming is completed, the cylinder 121 pushes the support table 122 upward, and then the console 11 controls the electric push rod 24 to move the push column 25 upward until the center of the pressure block 27 corresponds to the center of the push column 25. At this time, the first pressure spring 28 inside the guide groove 26 pushes the pressure block 27, causing the cutting blade 29 to also retract into the inside of the guide groove 26. Since the cutting blade 29 can ream the inner wall of the workpiece after being pushed out of the guide groove 26, when reaming different workpieces, the length of the cutting blade 29 pushed out of the guide groove 26 can be adjusted, and different lengths are adapted to different workpieces and different aperture requirements, avoiding frequent replacement of the drill bit 22 or the machine tool 1 when processing different workpieces or different apertures, thereby ensuring the processing efficiency of the workpiece.

[0026] As Figures 2 to 4 shown, a diameter measuring component 3 is provided at the upper end of the machine tool 1. The diameter measuring component 3 includes a fixed seat 31 fixedly connected to the center of the upper end of the machine body in parallel arrangement.

[0027] A chute 32 is provided on the upper side of the fixed seat 31. A slider 33 is slidably connected inside the chute 32. On the sides of the left and right corresponding sliders 33 away from each other, a second compression spring 34 is fixedly connected. On the other side of the second compression spring 34, an extrusion disc 341 is fixedly connected. On the sides of the left and right corresponding chutes 32 away from each other inside, a first pressure sensor 35 is provided. The opposite surfaces of the extrusion disc 341 and the first pressure sensor 35 are in extrusion contact. On the upper side of the slider 33, a snap ring 37 is fixedly connected. The left and right corresponding snap rings 37 jointly wrap around the outside of the fixed cylinder 21.

[0028] On the other side of the snap ring 37, a scale bar 36 is fixedly connected. The inner surface of the snap ring 37 is in sliding extrusion contact with the outer surface of the fixed cylinder 21. The extrusion disc 341 is slidably connected inside the chute 32. The first pressure sensor 35 is electrically connected to an external power source.

[0029] By adopting the above technical solution, when the fixed cylinder 21 moves downward between the two snap rings 37, if the cutting blade 29 is pushed out, the cutting blade 29 will push the snap ring 37. During this process, the slider 33 on the lower side of the snap ring 37 will slide inside the chute 32 on the upper side of the fixed seat 31, and at the same time drive the scale bar 36 to move. As the slider 33 slides inside the chute 32, the second compression spring 34 fixed to the side of the slider 33 will move towards the first pressure sensor 35, and the extrusion disc 341 fixed to the other side of the second compression spring 34 is always in contact with the first pressure sensor 35. As the slider 33 starts to move, the first pressure sensor 35 cooperates with the extrusion disc 341 to squeeze the second compression spring 34, and the elastic force generated by the squeezed second compression spring 34 will be applied to the surface of the first pressure sensor 35. Then the first pressure sensor 35 transmits the information to the control console 11, and the control console 11 controls the electric push rod 24 to stop running according to the preset data. Since the distance that the cutting blade 29 is pushed out can be detected in real time by the snap ring 37, and the movement of the cutting blade 29 is controlled in time according to the detected data, the aperture of the workpiece inner wall reamed by the cutting blade 29 is accurately controlled, and it is applicable to the processing of different workpieces at the same time, further ensuring the processing efficiency of the workpiece.

[0030] As Figure 2 、 Figure 3 and Figure 5 As shown in the figure, a detection component 38 is provided on the outside of the rotating rod 14. The detection component 38 includes a fixed sleeve 381 fixedly connected to the back side of the upper end of the machine tool 1.

[0031] The inner wall of the fixed sleeve 381 is provided with a moving groove 383. A moving ring 382 is slidably connected inside the moving groove 383. Embedding grooves 385 are arranged in a circular array on the inner surface of the moving ring 382. A third compression spring 384 is fixedly connected between the upper side of the moving ring 382 and the inside of the moving groove 383. After the fixed cylinder 21 moves upward, it is in sliding contact with the inner surface of the fixed sleeve 381. The fixed sleeve 381 is sleeved outside the fixed cylinder 21 and is slidably connected inside the moving ring 382. After the fixed cylinder 21 moves upward, the cutting blade 29 is pushed out of the guiding groove 26. After the cutting blade 29 is pushed out of the guiding groove 26, it is in sliding contact with the inside of the embedding groove 385. The shape of the cutting blade 29 is adapted to the shape of the embedding groove 385.

[0032] By adopting the above technical solution, when the workpiece machining is completed, the control console 11 controls the air cylinder 121 to push the support table 122 upward, so that the drill bit 22 moves upward. At the same time, the control console 11 controls the electric push rod 24 to pull the pushing column 25 upward. If the cutting blade 29 completely enters the inside of the guiding groove 26, it means that the pressure receiving block 27 is at the center of the pushing column 25, and the drill bit 22 reaches the position before machining the workpiece. Then the electric push rod 24 continues to pull the pushing column 25 upward, and the air cylinder 121 also continues to push the support table 122 upward. As the cutting blade 29 is completely pushed out of the guiding groove 26 again, the cutting blade 29 will also enter the inside of the fixed sleeve 381, so that the moving ring 382 wraps around the outside of the fixed cylinder 21. At the same time, the cutting blade 29 enters the embedding groove 385 inside the moving ring 382. Because the shape of the cutting blade 29 is adapted to the shape of the embedding groove 385, the cutting blade 29 can move smoothly inside the embedding groove 385. If there are scraps on the surface of the cutting blade 29, the moving ring 382 inside the moving groove 383 will scrape the scraps on the surface of the cutting blade 29 due to the push of the third compression spring 384, and the moving ring 382 always remains in place or moves slightly upward. If the surface of the cutting blade 29 is deformed or distorted due to wear, the shape of the cutting blade 29 will not be adapted to the shape of the embedding groove 385, resulting in an increase in the frictional force between the cutting blade 29 and the embedding groove 385, causing the moving ring 382 to move upward a certain distance or make abnormal noises. If there is no abnormal situation, the control console 11 controls the air cylinder 121 to pull the support table 122 downward to the position before machining the workpiece. Since the cutting blade 29 will continue to move upward after machining the workpiece, it will scrape the scraps adhered to the surface of the cutting blade 29 and also detect the surface of the cutting blade 29 to facilitate timely discovery of whether there is deformation or distortion on the surface of the cutting blade 29.

[0033] Such as Figure 3 And Figure 5As shown in the figure, a warning component 39 is provided both inside and outside the fixed sleeve 381. The warning component 39 includes guide grooves 391 penetratingly formed on the left and right sides of the fixed sleeve 381.

[0034] The moving groove 383 is communicated with the guide groove 391. Moving blocks 392 are fixedly connected to both the left and right sides of the moving ring 382. The moving blocks 392 are slidably connected inside the guide grooves 391. Second pressure sensors 393 are provided on both the left and right sides of the outer surface of the fixed sleeve 381. The lower sides of the moving blocks 392 are in pressing contact with the second pressure sensors 393. The second pressure sensors 393 are electrically connected to an external power supply. A warning lamp 394 is provided on the front side of the control console 11.

[0035] By adopting the above technical solution, if the surface of the cutting blade 29 is deformed or distorted, causing the moving ring 382 to move upward, as the fixed cylinder 21 continues to move upward, the pressure exerted by the third pressure spring 384 on the moving ring 382 will gradually increase and cause the moving ring 382 to disengage from the cutting blade 29 and quickly drop when reaching the critical point. At this time, the moving blocks 392 on the outer side of the moving ring 382 will slide in the guide grooves 391 on the outer side of the fixed sleeve 381 and strike the second pressure sensors 393 on the outer side of the fixed sleeve 381. Then, the second pressure sensors 393 will transmit information to the control console 11, and the warning lamp 394 will be activated through the control console 11. Finally, the warning lamp 394 will warn the staff. Subsequently, the drill bit 22 can be separated from the fixed cylinder 21, and then the cutting blade 29 can be replaced. Since the moving ring 382 detects the surface of the cutting blade 29, if the surface of the cutting blade 29 is deformed or distorted, the moving blocks 392 on the outer side of the moving ring 382 will quickly strike the second pressure sensors 393, and the warning lamp 394 will warn the staff to remind the staff to replace the cutting blade 29 in time to ensure the processing efficiency of the workpiece.

[0036] Working principle: Start the operation of the adjusting member 12 above the machine tool 1 through the console 11, and drive the rotating rod 14 and the drill bit 22 below it to rotate. If the drill bit 22 contacts the inner wall of the workpiece during rotation, the inner wall of the workpiece will be ground. During the downward movement of the rotating rod 14, start the electric push rod 24 arranged in the movable groove 23 inside the fixed cylinder 21. The electric push rod 24 will push the push column 25 downward and squeeze the inclined surface of the pressure receiving block 27, causing the cutting blade 29 to slide inside the guiding groove 26 until the cutting blade 29 is pushed out of the guiding groove 26. When the cutting blade 29 contacts the inner wall of the workpiece, the inner diameter of the workpiece will expand. When the fixed cylinder 21 moves downward between the two snap rings 37, if the cutting blade 29 is pushed out, the cutting blade 29 will push the snap ring 37, causing the slider 33 to slide inside the sliding groove 32 on the upper side of the fixed seat 31, and at the same time drive the scale bar 36 to move. If the slider 33 slides inside the sliding groove 32, the second pressure spring 34 fixed to the side of the slider 33 will move towards the direction of the first pressure sensor 35, and the elastic force generated by the compressed second pressure spring 34 will be applied to the surface of the first pressure sensor 35. Then, the first pressure sensor 35 will transmit the information to the console 11 and control the electric push rod 24 to stop operating according to the preset data; when the workpiece processing is completed, the console 11 controls the electric push rod 24 to pull the push column 25 upward. The electric push rod 24 continues to pull the push column 25 upward, and the air cylinder 121 also continues to push the support platform 122 upward. As the cutting blade 29 is completely pushed out of the guiding groove 26 again, the moving ring 382 wraps around the outside of the fixed cylinder 21. At the same time, the cutting blade 29 enters the embedding groove 385 inside the moving ring 382. Because the shape of the cutting blade 29 is adapted to the shape of the embedding groove 385, the cutting blade 29 can move smoothly inside the embedding groove 385. If the surface of the cutting blade 29 is deformed or distorted due to wear, the shape of the cutting blade 29 will not be adapted to the shape of the embedding groove 385, resulting in an increase in the friction force between the cutting blade 29 and the embedding groove 385, causing the moving ring 382 to move upward a certain distance or make a strange noise, and at the same time causing the moving ring 382 to move upward. As the fixed cylinder 21 continues to move upward, the pressure exerted by the third pressure spring 384 on the moving ring 382 will gradually increase, and when it reaches the critical point, the moving ring 382 will break away from the cutting blade 29 and quickly drop. At this time, the moving block 392 outside the moving ring 382 will slide inside the guiding groove 391 outside the fixed sleeve 381 and hit the second pressure sensor 393 outside the fixed sleeve 381. Then, the second pressure sensor 393 will transmit the information to the console 11, and the warning light 394 will be started through the console 11. Finally, the staff will be warned through the warning light 394. Subsequently, the drill bit 22 can be separated from the fixed cylinder 21, and then the cutting blade 29 can be replaced.

[0037] The above are only the preferred specific embodiments of the present invention; however, the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its improved concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A hole grinding device for processing an oil pump plunger sleeve, comprising a machine tool (1) and a control console (11) arranged on the right side of the upper end of the machine tool (1), an adjusting member (12) being arranged on the back side of the upper end of the machine tool (1), a driving motor (13) being arranged inside the adjusting member (12), and a rotating rod (14) being fixedly connected to the output end of the driving motor (13), characterized in that: An adjusting component (2) is provided on both the inner and outer sides of the rotating rod (14); The adjusting component (2) includes a fixed cylinder (21) fixedly connected to the lower end of the rotating rod (14). A drill bit (22) is detachably installed on the lower side of the fixed cylinder (21). An activity slot (23) is formed inside the fixed cylinder (21). An electric push rod (24) is arranged on the upper side inside the activity slot (23). The telescopic end of the electric push rod (24) is fixedly connected to a push column (25). The outer surface of the fixed cylinder (21) is provided with guiding slots (26) arranged in a circular array. A pressure-receiving block (27) is slidably connected inside the guiding slot (26). The other side of the pressure-receiving block (27) is fixedly connected to a cutting blade (29). A first pressure spring (28) is fixedly connected between the pressure-receiving block (27) and the guiding slot (26) in a parallel arrangement.

2. The hole grinding device for processing an oil pump plunger sleeve according to claim 1, characterized in that: The adjusting part (12) includes a cylinder (121) arranged inside the upper back side of the machine tool (1). The telescopic end of the cylinder (121) is fixedly connected to a support platform (122). Limiting rods (123) are fixedly connected in a parallel arrangement on the upper back side of the machine tool (1). The support platform (122) is slidably connected to the outside of the limiting rods (123). The support platform (122) wraps the outside of the drive motor (13).

3. The hole grinding device for processing an oil pump plunger sleeve according to claim 1, wherein: One side of the pressure-receiving block (27) close to the push column (25) is in sliding extrusion contact with the outer surface of the push column (25). The cutting blade (29) is slidably connected inside the guiding slot (26). One side of the pressure-receiving block (27) close to the push column (25) is trapezoidal. The push column (25) is hourglass-shaped. The push column (25) is slidably connected inside the activity slot (23).

4. The hole grinding device for processing the oil pump plunger sleeve according to claim 1, characterized in that: A diameter measuring component (3) is provided on the upper end of the machine tool (1). The diameter measuring component (3) includes a fixed seat (31) fixedly connected to the center of the upper end of the machine body in a parallel arrangement.

5. The hole grinding device for machining an oil pump plunger sleeve according to claim 4, characterized in that: A sliding slot (32) is formed on the upper side of the fixed seat (31). A slider (33) is slidably connected inside the sliding slot (32). Second pressure springs (34) are fixedly connected to the outer sides of the left and right corresponding sliders (33) away from each other. The other side of the second pressure spring (34) is fixedly connected to an extrusion disc (341). First pressure sensors (35) are arranged on the outer sides of the left and right corresponding sliding slots (32) away from each other. The opposite surfaces of the extrusion disc (341) and the first pressure sensors (35) are in extrusion contact. A clamping ring (37) is fixedly connected to the upper side of the slider (33). The left and right corresponding clamping rings (37) jointly wrap the outside of the fixed cylinder (21).

6. The hole grinding device for machining an oil pump plunger sleeve according to claim 5, characterized in that: A scale bar (36) is fixedly connected to the other side of the clamping ring (37). The inner surface of the clamping ring (37) is in sliding extrusion contact with the outer surface of the fixed cylinder (21). The extrusion disc (341) is slidably connected inside the sliding slot (32). The first pressure sensor (35) is electrically connected to an external power supply.

7. The hole grinding device for processing the oil pump plunger sleeve according to claim 1, wherein: A detection component (38) is provided on the outer side of the rotating rod (14), and the detection component (38) includes a fixed sleeve (381) fixedly connected to the back side of the upper end of the machine tool (1).

8. The hole grinding device for machining an oil pump plunger sleeve according to claim 7, characterized in that: The inner wall of the fixed sleeve (381) is provided with a moving groove (383), and the interior of the moving groove (383) is slidably connected to a moving ring (382). The inner surface of the moving ring (382) is provided with embedding grooves (385) arranged in a ring array. A third pressure spring (384) is fixedly connected between the upper side of the moving ring (382) and the interior of the moving groove (383). After the fixed cylinder (21) moves upward, it slides in contact with the inner surface of the fixed sleeve (381). After the fixed sleeve (381) is sleeved on the outer side of the fixed cylinder (21), it slides in contact with the interior of the moving ring (382). After the fixed cylinder (21) moves upward, the cutting blade (29) is pushed out of the guide groove (26). After the cutting blade (29) is pushed out of the guide groove (26), it slides in contact with the interior of the embedding groove (385). The shape of the cutting blade (29) is adapted to the shape of the embedding groove (385).

9. The hole grinding device for processing an oil pump plunger sleeve according to claim 8, wherein: The inside and outside of the fixing sleeve (381) are both provided with a warning component (39), and the warning component (39) includes a guide groove (391) extending through the left and right sides of the fixing sleeve (381).

10. The hole grinding device for machining an oil pump plunger sleeve according to claim 9, characterized in that: The movable groove (383) is connected to the guide groove (391), and movable blocks (392) are fixedly connected to the left and right sides of the movable ring (382), and the movable blocks (392) are slidably connected to the inside of the guide groove (391). Second pressure sensors (393) are provided on the left and right sides of the outer surface of the fixed sleeve (381), and the lower side of the movable block (392) is in compression contact with the second pressure sensor (393). The second pressure sensor (393) is electrically connected to an external power supply. A warning light (394) is provided on the front side of the console (11).

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