Numerical control high-precision scraping tumbling mill for oil cylinder

Abstract

The utility model relates to the technical field of oil cylinder machining, in particular to a numerical control high-precision scraping tumbling mill for an oil cylinder, which comprises a table body, a machine body, a cutting shaft and a tool bit, the machine body is connected to the upper end face of the table body in a sliding mode, and the cutting shaft is connected to the side wall of the machine body in a rotating mode. The cutter head is rotatably connected to one end, far away from the machine body, of the cutting shaft, a cleaning mechanism is arranged on the cutting shaft, and the cleaning mechanism comprises a fixing ring, an adjusting rod, a mounting seat, a sealing cavity and a reciprocating screw rod. The cooling liquid is continuously pushed into the spraying cavity, the spraying cavity moves along with the tool bit, enough spraying pressure can be kept all the time, the high-pressure sprayed cooling liquid cools the tool bit and is enough to rapidly wash away the cut scrap iron, the scrap iron is prevented from being accumulated to affect cutting, and the machining effect is good.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic cylinder processing technology, and in particular to a CNC high-precision scraping and burnishing machine for hydraulic cylinders. Background Technology

[0002] Scraping and burnishing machines, also known as boring and burnishing machines, boring and rolling machines, hydraulic scraping and burnishing machines, CNC scraping and burnishing machine tools, etc., use advanced boring and rolling composite processing technology and advanced control technology to complete the boring cutting and rolling polishing processes in one reciprocating motion. The machine tool adopts a boring process in which the workpiece remains stationary while the boring tool rotates. During boring, coolant is injected from the rear end to cool the cutting head and push the iron chips out from the oil hole.

[0003] Existing technology uses an additional system to inject coolant, which is relatively power-consuming. In addition, the coolant is flooded into the cylinder from the port and does not move with the cutter head. As the cutter head goes deeper, the pressure of the injected coolant is low, which cannot effectively push the iron filings out. This makes it easy for the iron filings to accumulate between the cutter head and the cylinder wall, resulting in poor cylinder wall quality. The flooding method is not only inefficient but also very wasteful of water. Utility Model Content

[0004] The purpose of this invention is to address the following shortcomings in the prior art: the prior art uses an additional system to inject coolant, which is relatively power-consuming, and the coolant flows in from the port of the cylinder and does not move with the cutter head. As the cutter head goes deeper, the pressure of the injected coolant is low, which cannot effectively push the iron filings out, and the iron filings are easy to accumulate between the cutter head and the cylinder wall, resulting in poor cylinder wall quality. The flooding method is not only inefficient but also wastes a lot of water. Therefore, this invention proposes a CNC high-precision scraping and burnishing machine for hydraulic cylinders.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A high-precision CNC scraping and burnishing machine for hydraulic cylinders includes a table and a machine body, a cutting shaft, and a cutting head. The machine body is slidably connected to the upper end face of the table, the cutting shaft is rotatably connected to the side wall of the machine body, and the cutting head is rotatably connected to the end of the cutting shaft away from the machine body.

[0007] The cutting shaft is equipped with a cleaning mechanism, which includes a fixed ring, adjusting rods, mounting bases, sealing cavities, and reciprocating screws. The fixed ring is rotatably connected to the outer surface of the cutting shaft. Multiple adjusting rods are arranged in a ring array on the side wall of the fixed ring. Multiple mounting bases are respectively fixedly connected to the ends of the adjusting rods away from the fixed ring. Multiple sealing cavities are respectively fixedly connected to the inner side wall of the mounting bases. Multiple reciprocating screws are respectively rotatably connected between the sealing cavities and the mounting bases.

[0008] Preferably, the cleaning mechanism further includes a connecting plate, a piston plate, and push rods. The connecting plates are threadedly connected to the reciprocating screw, the piston plates are slidably connected to the inner wall of the sealing cavity, and the push rods are fixedly connected between the piston plates and the connecting plates, with the push rods slidably connected to the sealing cavity.

[0009] Preferably, a rotating rod is rotatably connected to the inner side wall of the mounting base, a friction roller is fixedly connected to the outer surface of the rotating rod, and a belt is sleeved between the rotating rod and the reciprocating lead screw.

[0010] Preferably, a spray chamber is fixedly connected to one end of the mounting base near the cutter head, and a water storage ring is fixedly connected to the side wall of the machine body.

[0011] Preferably, an inlet pipe is fixedly connected between the water storage ring and the sealing cavity, and an outlet pipe is fixedly connected between the sealing cavity and the spray cavity. Both the inlet pipe and the outlet pipe are equipped with a one-way valve.

[0012] Preferably, a limit block is provided at the end of the adjusting rod away from the mounting base, and an adjusting spring is fixedly connected between the limit block and the fixed ring. Retaining rings are fixedly connected to the outer surfaces of the cutting shafts located at both ends of the fixed ring, and the retaining rings are slidably connected to the fixed ring.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] The fixed ring drives the friction roller to rotate, which in turn drives the connecting plate to continuously stretch and squeeze the piston plate, pushing the coolant into the spray chamber. The spray chamber moves with the cutter head, maintaining sufficient spray pressure. The high-pressure sprayed coolant cools the cutter head and is sufficient to quickly flush away the cut iron chips, preventing them from accumulating and affecting the cutting process, resulting in better processing results.

[0015] The device operates by using the friction generated by the movement of the machine body during cutting, without the need for an additional system to drive it, which saves energy and is very green and environmentally friendly. It also automatically turns on and off the water spray during processing, which saves more water resources compared to flood irrigation.

[0016] By adjusting the spring and the adjusting rod, the device can process cylinder tubes with different inner diameters, and has a wide range of applications. Attached Figure Description

[0017] Figure 1 A schematic diagram of the water storage ring structure of a CNC high-precision scraping and tumbling machine for hydraulic cylinders proposed in this utility model;

[0018] Figure 2 This is a schematic diagram of the retaining ring structure of a CNC high-precision scraping and tumbling machine for hydraulic cylinders proposed in this utility model;

[0019] Figure 3 This is a schematic diagram of the fixing ring structure of a CNC high-precision scraping and burnishing machine for hydraulic cylinders proposed in this utility model;

[0020] Figure 4 This is a schematic diagram of the adjusting rod structure of a CNC high-precision scraping and tumbling machine for hydraulic cylinders proposed in this utility model;

[0021] Figure 5 for Figure 3 A magnified view of part A in the image;

[0022] Figure 6 for Figure 4 A magnified view of part B in the image.

[0023] In the diagram: 1. Frame, 2. Machine body, 3. Cutting shaft, 4. Cutting head, 5. Fixing ring, 6. Adjusting rod, 7. Mounting seat, 8. Sealing cavity, 9. Reciprocating screw, 10. Connecting plate, 11. Piston plate, 12. Push rod, 13. Rotating rod, 14. Friction roller, 15. Belt, 16. Spray chamber, 17. Water storage ring, 18. Water inlet pipe, 19. Water outlet pipe, 20. Adjusting spring, 21. Retaining ring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] The terms used in this utility model, such as "upper", "lower", "left", "right", "middle" and "one", are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0026] Reference Figures 1-6 A high-precision CNC scraping and burnishing machine for hydraulic cylinders includes a table 1 and a machine body 2, a cutting shaft 3, and a cutting head 4. The machine body 2 is slidably connected to the upper end face of the table 1, the cutting shaft 3 is rotatably connected to the side wall of the machine body 2, and the cutting head 4 is rotatably connected to the end of the cutting shaft 3 away from the machine body 2.

[0027] A cleaning mechanism is provided on the cutting shaft 3. The cleaning mechanism includes a fixed ring 5, an adjusting rod 6, a mounting base 7, a sealing cavity 8, and a reciprocating screw 9. The fixed ring 5 is rotatably connected to the outer surface of the cutting shaft 3. The friction between the fixed ring 5 and the cutting shaft 3 is very small. A retaining ring 21 is fixedly connected to the outer surface of the cutting shaft 3 at both ends of the fixed ring 5. The retaining ring 21 is slidably connected to the fixed ring 5. The friction between the retaining ring 21 and the fixed ring 5 is extremely small. Multiple adjusting rods 6 are installed in a ring array on the side wall of the fixed ring 5. A limit block is provided at the end of the adjusting rod 6 away from the mounting base 7. An adjusting spring 20 is fixedly connected between the limit block and the fixed ring 5. Multiple mounting bases 7 are fixedly connected to the end of the adjusting rod 6 away from the fixed ring 5. Multiple sealing cavities 8 are fixedly connected to the inner side wall of the mounting base 7. Multiple reciprocating screws 9 are rotatably connected between the sealing cavity 8 and the mounting base 7.

[0028] The cleaning mechanism also includes a connecting plate 10, a piston plate 11, and a push rod 12. Multiple connecting plates 10 are threadedly connected to the reciprocating screw 9. Multiple piston plates 11 are slidably connected to the inner wall of the sealing cavity 8. Multiple push rods 12 are fixedly connected between the piston plate 11 and the connecting plate 10. The push rods 12 are slidably connected to the sealing cavity 8, but the push rods 12 and the sealing cavity 8 are not sealed.

[0029] A rotating rod 13 is rotatably connected to the inner wall of the mounting base 7. A friction roller 14 is fixedly connected to the outer surface of the rotating rod 13. The friction roller 14 has a very high surface friction and is made of elastic material that can be locally deformed to fit the shape of the inner wall of the oil cylinder. A belt 15 is sleeved between the rotating rod 13 and the reciprocating screw 9. A spray chamber 16 is fixedly connected to one end of the mounting base 7 near the cutter head 4. The spray chamber 16 is arc-shaped. A water storage ring 17 is fixedly connected to the side wall of the machine body 2. A water inlet pipe 18 is fixedly connected between the water storage ring 17 and the sealing cavity 8. A water outlet pipe 19 is fixedly connected between the sealing cavity 8 and the spray chamber 16. A one-way valve is installed in both the water inlet pipe 18 and the water outlet pipe 19. The flow direction of the one-way valve in the water inlet pipe 18 is from the water storage ring 17 to the sealing cavity 8. The flow direction of the one-way valve in the water outlet pipe 19 is from the sealing cavity 8 to the spray chamber 16.

[0030] In this invention, during use, first connect an external water pipe to the water storage ring 17, align the cutter head 4 with the center of the cylinder tube, and insert the cutter head 4 and the fixing ring 5 into the cylinder tube. The adjusting rod 6 and the adjusting spring 20 can accommodate cylinder tubes of different inner diameters. The adjusting spring 20, through the adjusting rod 6, tightly presses the friction roller 14 against the inner wall of the cylinder tube. The friction roller 14 deforms to conform to the shape of the cylinder tube. Start the CNC machine body 2, which slowly moves towards the cylinder tube, driving the cutting shaft 3 and the cutter head 4 to process the inner wall of the cylinder tube. The cutting shaft 3 drives the retaining ring 21 at high speed. When the rotating ring 21 and the cutting shaft 3 move forward, the friction between them and the fixed ring 5 is minimal, while the friction between the friction roller 14 and the inner wall of the cylinder tube is relatively large. Therefore, the retaining ring 21 can only push the fixed ring 5 forward, while the cutting shaft 3 cannot drive the fixed ring 5 to rotate. Consequently, the water inlet pipe 18 will not rotate. When the fixed ring 5 moves forward with the cutting shaft 3, it pushes the friction roller 14 to rotate. The friction roller 14 drives the reciprocating screw 9 to rotate via the rotating rod 13 and the belt 15. The reciprocating screw 9 drives the connecting plate 10 to reciprocate horizontally. The connecting plate 10 drives the piston plate 1 through the push rod 12. 1. The piston plate 11 reciprocates within the sealed cavity 8. When the piston plate 11 moves closer to the belt 15, the pressure between the piston plate 11 and the sealed cavity 8 decreases. Under the action of this pressure, the one-way valve in the inlet pipe 18 opens, and the one-way valve in the outlet pipe 19 closes. The coolant in the water storage ring 17 enters the sealed cavity 8 through the inlet pipe 18. When the piston plate 11 moves away from the belt 15, the pressure between the piston plate 11 and the sealed cavity 8 increases. Under the action of this pressure, the one-way valve in the inlet pipe 18 closes, and the one-way valve in the outlet pipe 19 opens. The coolant in the sealed cavity 8 then flows back and forth through the outlet pipe 19. Water pipe 19 enters the spray chamber 16 and sprays onto the inner wall of the cutter head 4 and the cylinder tube, washing away the cut iron filings and cooling the cutter head 4. The cutting shaft 3 rotates at high speed, so the piston plate 11 also reciprocates at high frequency for a short time. The high-frequency intermittent high-pressure spray is sufficient to generate enough pressure. The positions of the spray chamber 16 and the cutter head 4 are fixed, so the pressure will not decrease as the cutting goes deeper, thus maintaining a high spray pressure to spray away the iron filings and prevent them from accumulating at the cutter head 4, avoiding affecting the cutting and polishing of the cylinder tube by the cutter head 4, resulting in a better processing effect.

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection", "linking", "fixing", etc., should be interpreted broadly.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A numerical control high-precision scraping and rolling machine for oil cylinder, comprising a table body (1) and a machine body (2), a cutting shaft (3), and a tool head (4), characterized in that, The machine body (2) is slidingly connected to the upper end surface of the table body (1), the cutting shaft (3) is rotatably connected to the side wall of the machine body (2), and the cutter head (4) is rotatably connected to the end of the cutting shaft (3) away from the machine body (2). A cleaning mechanism is arranged on the cutting shaft (3), the cleaning mechanism comprises a fixed ring (5), an adjusting rod (6), a mounting seat (7), a sealing cavity (8), and a reciprocating screw rod (9), the fixed ring (5) is rotatably connected to the outer surface of the cutting shaft (3), a plurality of adjusting rods (6) are arranged in an annular array on the side wall of the fixed ring (5), a plurality of mounting seats (7) are fixedly connected to the ends of the adjusting rods (6) away from the fixed ring (5), a plurality of sealing cavities (8) are fixedly connected to the inner side walls of the mounting seats (7), and a plurality of reciprocating screw rods (9) are rotatably connected between the sealing cavities (8) and the mounting seats (7).

2. The numerical control high-precision skiving and rolling machine for oil cylinder according to claim 1, characterized in that The cleaning mechanism further comprises a connecting plate (10), a piston plate (11), and a push rod (12), a plurality of connecting plates (10) are threadedly connected to the reciprocating screw rods (9), a plurality of piston plates (11) are slidingly connected to the inner side walls of the sealing cavities (8), and a plurality of push rods (12) are fixedly connected between the piston plates (11) and the connecting plates (10).

3. The numerical control high-precision skiving and rolling machine for oil cylinder according to claim 1, characterized in that, A rotating rod (13) is rotatably connected to the inner side wall of the mounting seat (7), a friction roller (14) is fixedly connected to the outer surface of the rotating rod (13), and a belt (15) is sleeved between the rotating rod (13) and the reciprocating screw rod (9).

4. The numerical control high-precision skiving and rolling machine for oil cylinder according to claim 1, characterized in that, An injection cavity (16) is fixedly connected to the end of the mounting seat (7) close to the cutter head (4), and a water storage ring (17) is fixedly connected to the side wall of the machine body (2).

5. The numerical control high-precision skiving and rolling machine for oil cylinder as claimed in claim 4, wherein A water inlet pipe (18) is fixedly and communicatively connected between the water storage ring (17) and the sealing cavity (8), a water outlet pipe (19) is fixedly and communicatively connected between the sealing cavity (8) and the injection cavity (16), and a one-way valve is arranged in each of the water inlet pipe (18) and the water outlet pipe (19).

6. The numerical control high-precision skiving and rolling machine for oil cylinder according to claim 1, characterized in that, A limiting block is arranged at the end of the adjusting rod (6) away from the mounting seat (7), an adjusting spring (20) is fixedly connected between the limiting block and the fixed ring (5), a blocking ring (21) is fixedly connected to the outer surface of the cutting shaft (3) at both ends of the fixed ring (5), and the blocking ring (21) is slidingly connected to the fixed ring (5).

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