Hydraulic cylinder boring device

Abstract

The application discloses a hydraulic oil cylinder boring device and relates to the field of hydraulic oil cylinder machining.The device comprises a boring machine, a main shaft installed on the boring machine and a driving assembly arranged outside the main shaft; while the cutting tool is driven by the main shaft to perform boring machining, airflow generated by rotating the fan blades is continuously blown to the cutting area of the cutting tool and the inner wall surface of the hydraulic oil cylinder under the action of gear transmission, the cutting tool is air-cooled, tool wear and surface quality reduction caused by cutting heat are effectively avoided, the cuttings and metal scraps generated by boring are blown forward and discharged, the cuttings are prevented from piling up and scratching the machined surface, the machining quality and the service life of the cutting tool are remarkably improved, the whole driving process completely utilizes the rotating power of the main shaft, no additional power source such as a motor or an air pump is needed, the device is simple in structure, low in energy consumption and low in cost, cooling and cleaning are simultaneously performed and the machining quality is improved.

Description

Technical Field

[0001] This application relates to the field of hydraulic cylinder machining technology, and in particular to a hydraulic cylinder boring device. Background Technology

[0002] Hydraulic cylinders are the core actuators in hydraulic systems that convert hydraulic energy into mechanical energy, and are widely used in fields such as engineering machinery, metallurgical equipment, aerospace, and shipbuilding.

[0003] The machining accuracy of the inner bore of a hydraulic cylinder directly determines the sealing performance, smoothness of movement, and service life of the hydraulic cylinder. Currently, the boring of hydraulic cylinders is carried out using a boring machine. Existing hydraulic cylinder boring devices typically include a spindle, boring bar, cutting tool, workpiece fixture, feed mechanism, and cooling system. The spindle drives the boring bar to rotate, the cutting tool is mounted on the end of the boring bar to cut the inner bore of the cylinder, the fixture is used to fix the workpiece, the feed mechanism controls the axial feed of the cutting tool, the cooling system reduces the cutting temperature during the machining process, and the cutting tool is controlled to perform depth machining during operation.

[0004] Boiling of hydraulic cylinder barrels falls under the category of deep hole machining. The cutting area gradually deepens, and the cutting tool generates a large amount of cutting heat during high-speed rotation. If it cannot be cooled effectively in time, the cutting tool temperature will rise sharply, accelerating tool wear and reducing tool life. At the same time, high temperature will also affect the quality and dimensional accuracy of the machined surface. Currently, cooling solutions are used through coolant and air blowing, but cooling devices are mostly independently set up and require an additional driving power source. Furthermore, a large amount of chips and metal fragments are generated during deep hole boring. Since the chips cannot be cleaned up immediately during boring, they will wrap around the tool, scratching the machined surface, accelerating tool wear, and in severe cases, even causing tool breakage. Summary of the Invention

[0005] The purpose of this application is to provide a hydraulic cylinder boring device that eliminates the need for additional power sources such as motors or air pumps, features a simple structure, low energy consumption, cost savings, simultaneous cooling and cleaning, and improved processing quality.

[0006] To achieve the above objectives, this application provides the following technical solution: a hydraulic cylinder boring device, comprising a boring machine and a spindle mounted on the boring machine, wherein a cutting tool is mounted on the outer end of the spindle; A drive assembly is provided outside the main shaft. The drive assembly includes several support rods. The outer ends of the several support rods are connected to a fixed annular bevel gear. Several driven gears are provided outside the fixed annular bevel gear. A cleaning and cooling assembly is provided on the outside of the main shaft. The cleaning and cooling assembly includes an annular support cylinder installed on the surface of the main shaft. Several connecting holes are opened through the surface of the annular support cylinder. A hollow fixed cylinder is embedded inside the connecting holes. A filter support plate is installed inside the hollow fixed cylinder near the inner ring. A rotating column is installed through the center of the filter support plate. A rotating fan blade is installed at the outer end of the rotating column. A support block is provided on the outside of the rotating fan blade, a telescopic rod is installed on the outer end of the support block, a spring is sleeved on the outside of the telescopic rod, an anti-clogging device is installed on the outer end of the telescopic rod, and a weight-adding block is installed on the outer end of the anti-clogging device. An air outlet is installed at the outer end of the hollow fixed cylinder, and an L-shaped connecting pipe is installed at the outer end of the air outlet. A universal ball is installed inside the L-shaped connecting pipe, and an air outlet hole is opened through the surface of the universal ball. An air outlet head is installed on the surface of the universal ball.

[0007] Preferably, a plurality of support rods are distributed equidistantly in a circle around the central axis of the main spindle, and the end of each support rod away from the fixed annular bevel gear is fixedly mounted on the boring machine. A plurality of driven gears are distributed equidistantly in a circle, and all of the driven gears are meshed with the fixed annular bevel gear.

[0008] Preferably, an annular groove is formed on one side surface of the annular support cylinder, the fixed annular bevel gear is inserted into the annular groove, and several driven gears are located inside the annular groove.

[0009] Preferably, the positions of the plurality of connecting holes correspond one-to-one with the positions of the plurality of driven gears, the inner end of the rotating column is fixedly connected to the driven gear, and the rotating column is rotatably connected to the filter support plate.

[0010] Preferably, the support block is hollowed out, the support block is fixedly connected to the inner wall of the hollow fixed cylinder, and the anti-clogging surface is fitted to the inner wall of the hollow fixed cylinder.

[0011] Preferably, one end of the spring is fixedly connected to the surface of the support block, and the other end of the spring is fixedly connected to the anti-clogging surface.

[0012] Preferably, the hollow fixed cylinder and the air outlet cylinder are arranged in a through-hole configuration, and the inner diameter of the air outlet cylinder is larger than the inner diameter of the hollow fixed cylinder.

[0013] Preferably, the L-shaped connecting pipe is configured to pass through the air outlet, and a limiting groove is formed on the inner wall of the L-shaped connecting pipe near the outer outlet.

[0014] Preferably, the omnidirectional ball is movably disposed inside the limiting groove, and the air outlet is configured to communicate with the interior of the L-shaped connecting pipe.

[0015] Preferably, the air outlet head and the air outlet hole are concentrically arranged, and the air outlet head is located outside the L-shaped connecting pipe.

[0016] In summary, the present invention has the following beneficial effects: 1. In this invention, with the cooperation of the drive assembly and the cleaning and cooling assembly, while the spindle drives the cutting tool to perform boring, the airflow generated by the rotating fan blades under the action of gear transmission continuously blows towards the cutting area of ​​the cutting tool and the inner wall surface of the hydraulic cylinder, thereby cooling the cutting tool and effectively avoiding tool wear and deterioration of the machined surface quality caused by cutting heat. At the same time, the chips and metal fragments generated by boring are blown forward and discharged to prevent chip accumulation from scratching the machined surface, thus significantly improving the machining quality and tool life.

[0017] 2. In this invention, the entire driving process utilizes the rotational power of the spindle itself, without the need for additional power sources such as motors or air pumps. It has a simple structure, low energy consumption, and cost savings. Cooling and cleaning are carried out simultaneously, improving processing quality. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is an overall structural diagram of a hydraulic cylinder boring device in one embodiment; Figure 2 This is a schematic diagram of the connection of the drive assembly of a hydraulic cylinder boring device in one embodiment; Figure 3 This is a schematic diagram of the fixed annular bevel gear connection of a hydraulic cylinder boring device in one embodiment; Figure 4 This is a schematic cross-sectional view of the annular fixed cylinder of a hydraulic cylinder boring device in one embodiment; Figure 5 This is a schematic diagram of the rotating fan blade connection of a hydraulic cylinder boring device in one embodiment; Figure 6 This is a schematic diagram illustrating the anti-clogging connection of a hydraulic cylinder boring device in one embodiment; Figure 7 This is a schematic diagram of the air outlet pipe of a hydraulic cylinder boring device in one embodiment; Figure 8 This is a schematic diagram of the universal ball connection of a hydraulic cylinder boring device in one embodiment.

[0020] In the diagram: 1. Boring machine; 2. Spindle; 3. Drive assembly; 301. Support rod; 302. Fixed annular bevel gear; 303. Driven gear; 4. Cleaning and cooling assembly; 401. Annular support cylinder; 402. Connecting hole; 403. Hollow fixed cylinder; 404. Filter support plate; 405. Rotating column; 406. Rotating fan blade; 407. Support block; 408. Telescopic rod; 409. Spring; 410. Anti-clogging device; 411. Weight block; 412. Air outlet; 413. L-shaped connecting pipe; 414. Limiting groove; 415. Universal ball; 416. Air outlet; 417. Air outlet head; 418. Annular groove; 5. Cutting tool. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Example: A hydraulic cylinder boring device, such as Figures 1-8 As shown, it includes a boring machine 1 and a spindle 2 mounted on the boring machine 1, with a cutting tool 5 mounted on the outer end of the spindle 2; When the existing boring machine 1 bores a hydraulic cylinder, the hydraulic cylinder is fixed by a fixture. The position of the cutting tool 5 is adjusted according to the inner diameter of the bore. Then, the spindle 2 drives the cutting tool 5 to rotate and move forward, thereby boring the hydraulic cylinder. This process and some components are existing known technologies and are not specifically numbered here. They will not be described in detail here.

[0023] A drive assembly 3 is provided on the outside of the spindle 2. The drive assembly 3 includes several support rods 301. The support rods 301 are made of rigid material to ensure the stability of the fixed ring bevel gear 302 during operation and to prevent large-scale vibration of the fixed ring bevel gear 302. The several support rods 301 are distributed equidistantly in a circle around the central axis of the spindle 2. The end of the support rod 301 away from the fixed ring bevel gear 302 is fixedly installed on the boring machine 1. At this time, the fixed ring bevel gear 302 can move forward synchronously with the spindle 2. The outer ends of the several support rods 301 are connected to the fixed ring bevel gear 302. Several driven gears 303 are provided on the outside of the fixed ring bevel gear 302. The driven gears 303 are distributed equidistantly in a circle and are all meshed with the fixed ring bevel gear 302. At this time, the fixed ring bevel gear 302 can drive the driven gears 303 to rotate. During the operation of the spindle 2 driving the cutting tool 5, the spindle 2 will not drive the support rod 301 and the fixed ring bevel gear 302 to rotate, and the fixed ring bevel gear 302 will always remain in a fixed state.

[0024] A cleaning and cooling assembly 4 is provided on the outside of the spindle 2. The cleaning and cooling assembly 4 includes an annular support cylinder 401 installed on the surface of the spindle 2. At this time, the annular support cylinder 401 can rotate synchronously with the spindle 2. An annular groove 418 is opened on one side surface of the annular support cylinder 401. The fixed annular bevel gear 302 is inserted into the annular groove 418. Several driven gears 303 are located inside the annular groove 418. At this time, the annular groove 418 provides protection for the gear transmission assembly, preventing too many impurities from entering the gear transmission assembly during the operation of the cutting tool 5, and ensuring the stability of the gear transmission operation. Several connecting holes 402 are opened through the surface of the annular support cylinder 401. The positions of the several connecting holes 402 correspond one-to-one with the positions of the several driven gears 303. A hollow fixing cylinder 403 is embedded in the connecting holes 402. At this time, the hollow fixing cylinder 403 plays a role in fixing To ensure a consistent transmission effect, a filter support plate 404 is installed inside the hollow fixed cylinder 403 near the inner ring. At this time, the filter support plate 404 is located at the inner end opening of the hollow fixed cylinder 403. Firstly, it can support the rotating column 405 and the driven gear 303. Secondly, it can prevent external impurities from entering the hollow fixed cylinder 403. A rotating column 405 is centrally located on the filter support plate 404. The inner end of the rotating column 405 is fixedly connected to the driven gear 303, and the rotating column 405 is rotatably connected to the filter support plate 404. A rotating fan blade 406 is installed at the outer end of the rotating column 405. At this time, the driven gear 303 can drive the rotating column 405 and the rotating fan blade 406 to rotate. Based on the special angle design of the rotating fan blade 406, during the rotation of the rotating fan blade 406, the rotating fan blade 406 will blow air into the hollow fixed cylinder 403. When the cutting tool 5 bores the hydraulic cylinder, the spindle 2 will rotate synchronously, and the annular support cylinder 401 will rotate synchronously with the spindle 2. Since the hollow fixed cylinder 403 and the annular support cylinder 401 are fixedly connected, the hollow fixed cylinder 403 will revolve synchronously with the annular support cylinder 401. The driven gear 303 will also revolve synchronously. Since the driven gear 303 is meshed with the fixed annular bevel gear 302, the driven gear 303 will rotate synchronously during its revolution. With the connection of the rotating column 405, the driven gear 303 will drive the rotating column 405 and the rotating fan blade 406 to rotate synchronously. During the rotation of the rotating fan blade 406, the rotating fan blade 406 draws cool air from the outside into the hollow fixed cylinder 403.

[0025] A support block 407 is provided on the outside of the rotating fan blade 406. The support block 407 is hollow and is made of a hard material to ensure the stability of the internal components of the hollow fixed cylinder 403. The support block 407 is fixedly connected to the inner wall of the hollow fixed cylinder 403. A telescopic rod 408 is installed on the outer end of the support block 407. At this time, the telescopic rod 408 can only perform linear telescopic movement and cannot rotate. Therefore, the telescopic rod 408 can limit the movement of the anti-clogging 410, thereby ensuring that the anti-clogging 410 can return to 403. Inside the main shaft 2, a spring 409 is sleeved on the outside of the telescopic rod 408. At this time, the spring 409 is a known technology, so the service life of the spring 409 can be guaranteed. One end of the spring 409 is fixedly connected to the surface of the support block 407, and the other end of the spring 409 is fixedly connected to the surface of the anti-clogging 410. The anti-clogging 410 is installed on the outer end of the telescopic rod 408. The surface of the anti-clogging 410 is fitted to the inner wall of the hollow fixed cylinder 403. A weight block 411 is installed on the outer end of the anti-clogging 410. The weight block 411 can further ensure the running inertia of the anti-clogging 410. When the annular support cylinder 401 is not rotating, the anti-clogging 410 is inside the hollow fixed cylinder 403, the telescopic rod 408 is not extended, and the spring 409 is not stretched. At this time, under the action of the anti-clogging 410 and the filter support plate 404, external impurities are prevented from entering the hollow fixed cylinder 403 and causing blockage. This further ensures the stability of the rotating fan blade 406 during operation. When the annular support cylinder 401 rotates with the main shaft 2, under the action of centrifugal force, the weight block 411 will drive the anti-clogging 410 to swing outward synchronously, the telescopic rod 408 will extend outward, and the spring 409 will be stretched. During this process, the anti-clogging 410 will detach from the hollow fixed cylinder 403. At this time, the hollow fixed cylinder 403 is in the open state, and the gas inside the hollow fixed cylinder 403 will overflow. When the annular support cylinder 401 stops rotating, the anti-clogging 410 will return to its original position under the rebound action of the spring 409.

[0026] A vent cylinder 412 is installed at the outer end of a hollow fixed cylinder 403. The hollow fixed cylinder 403 and the vent cylinder 412 are connected. The inner diameter of the vent cylinder 412 is larger than the inner diameter of the hollow fixed cylinder 403. When the anti-clogging 410 detaches from the hollow fixed cylinder 403 under centrifugal force, it will enter the vent cylinder 412. Since the inner diameter of the vent cylinder 412 is larger than the inner diameter of the hollow fixed cylinder 403, a gap remains between the anti-clogging 410 and the inner wall of the vent cylinder 412. Therefore, gas inside the hollow fixed cylinder 403 can enter the vent cylinder 412. An L-shaped connecting pipe 413 is installed at the outer end of the vent cylinder 412. The L-shaped connecting pipe 413 is connected to the vent cylinder 412. A limiting groove 414 is formed on the inner wall of the L-shaped connecting pipe 413 near the outer outlet. 3. An internal universal ball 415 is provided, which is movably disposed inside the limiting groove 414. An air outlet 416 is provided through the surface of the universal ball 415, which is connected to the interior of the L-shaped connecting pipe 413. At this time, the hollow fixed cylinder 403, the air outlet 412, the L-shaped connecting pipe 413, the limiting groove 414, the universal ball 415, and the air outlet head 417 are connected to each other to ensure the outflow of gas. An air outlet head 417 is installed on the surface of the universal ball 415, which is concentric with the air outlet 416. The air outlet head 417 is located outside the L-shaped connecting pipe 413. Furthermore, there is a large friction between the universal ball 415 and the limiting groove 414. The friction limits the universal ball 415 and prevents it from rotating after adjustment.

[0027] When boring the hydraulic cylinder, the jet angle of the air outlet 417 is roughly adjusted according to the position of the outer end of the cutting tool 5. By rotating the air outlet 417, the cutting tool 5 is driven to rotate inside the limiting groove 414. When the annular support cylinder 401 rotates, the gas inside the hollow fixed cylinder 403 can enter the air outlet cylinder 412 and the L-shaped connecting pipe 413. The gas entering the L-shaped connecting pipe 413 will enter the air outlet 417 through the air outlet hole 416. Then, the gas inside the air outlet 417 is finally sprayed onto the surface of the cutting tool 5 and the inner wall surface of the hydraulic cylinder, which has the effect of blowing and cooling the surface of the cutting tool 5 and blowing the boring impurities forward.

[0028] With the cooperation of the drive assembly 3 and the cleaning and cooling assembly 4, while the spindle 2 drives the cutting tool 5 to perform boring, the airflow generated by the rotating fan blade 406 under the action of gear transmission continuously blows towards the cutting area of ​​the cutting tool 5 and the inner wall surface of the hydraulic cylinder, cooling the cutting tool 5. This effectively avoids tool wear and deterioration of the machined surface quality caused by cutting heat. At the same time, it blows the chips and metal fragments generated by boring forward and discharges them, preventing chip accumulation from scratching the machined surface. This significantly improves the machining quality and tool life. The entire drive process utilizes the rotational power of the spindle 2 itself, without the need for additional power sources such as motors or air pumps. The structure is simple, energy consumption is low, and cost is saved. Cooling and cleaning are carried out simultaneously, improving the machining quality.

[0029] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A hydraulic cylinder boring device, characterized in that, include: A boring machine (1), and a spindle (2) mounted on the boring machine (1), wherein a cutting tool (5) is mounted on the outer end of the spindle (2); The main shaft (2) is provided with a drive assembly (3) on its outside. The drive assembly (3) includes several support rods (301). The outer ends of the several support rods (301) are connected to a fixed ring bevel gear (302). The fixed ring bevel gear (302) is provided with several driven gears (303) on its outside. The main shaft (2) is provided with a cleaning and cooling assembly (4) on its outside. The cleaning and cooling assembly (4) includes an annular support cylinder (401) installed on the surface of the main shaft (2). Several connecting holes (402) are opened through the surface of the annular support cylinder (401). A hollow fixing cylinder (403) is embedded inside the connecting holes (402). A filter support plate (404) is installed inside the hollow fixing cylinder (403) near the inner ring. A rotating column (405) is provided through the center of the filter support plate (404). A rotating fan blade (406) is installed at the outer end of the rotating column (405). The rotating fan blade (406) is provided with a support block (407) on the outside. A telescopic rod (408) is installed on the outer end of the support block (407). A spring (409) is sleeved on the outside of the telescopic rod (408). An anti-clogging (410) is installed on the outer end of the telescopic rod (408). A weight-adding block (411) is installed on the outer end of the anti-clogging (410). An air outlet (412) is installed at the outer end of the hollow fixed cylinder (403), and an L-shaped connecting pipe (413) is installed at the outer end of the air outlet (412). A universal ball (415) is provided inside the L-shaped connecting pipe (413), and an air outlet hole (416) is opened through the surface of the universal ball (415). An air outlet head (417) is installed on the surface of the universal ball (415).

2. The hydraulic cylinder boring device according to claim 1, characterized in that, Several support rods (301) are distributed equidistantly around the central axis of the main shaft (2). The end of the support rod (301) away from the fixed annular bevel gear (302) is fixedly installed on the boring machine (1). Several driven gears (303) are distributed equidistantly around the central axis of the main shaft (2). All driven gears (303) are meshed with the fixed annular bevel gear (302).

3. The hydraulic cylinder boring device according to claim 1, characterized in that, An annular groove (418) is provided on one side surface of the annular support cylinder (401), and the fixed annular bevel gear (302) is inserted into the annular groove (418). Several driven gears (303) are located inside the annular groove (418).

4. The hydraulic cylinder boring device according to claim 1, characterized in that, The positions of several connecting holes (402) correspond one-to-one with the positions of several driven gears (303), the inner end of the rotating column (405) is fixedly connected to the driven gear (303), and the rotating column (405) is rotatably connected to the filter support plate (404).

5. The hydraulic cylinder boring device according to claim 1, characterized in that, The support block (407) is hollow and is fixedly connected to the inner wall of the hollow fixed cylinder (403). The surface of the anti-blocking (410) is fitted to the inner wall of the hollow fixed cylinder (403).

6. The hydraulic cylinder boring device according to claim 1, characterized in that, One end of the spring (409) is fixedly connected to the surface of the support block (407), and the other end of the spring (409) is fixedly connected to the surface of the anti-blocking (410).

7. The hydraulic cylinder boring device according to claim 1, characterized in that, The hollow fixed cylinder (403) and the air outlet cylinder (412) are connected in a through manner, and the inner diameter of the air outlet cylinder (412) is larger than the inner diameter of the hollow fixed cylinder (403).

8. A hydraulic cylinder boring device according to claim 1, characterized in that, The L-shaped connecting pipe (413) is connected to the air outlet (412), and a limiting groove (414) is provided on the inner wall of the L-shaped connecting pipe (413) near the outer end outlet.

9. A hydraulic cylinder boring device according to claim 8, characterized in that, The omnidirectional ball (415) is movably disposed inside the limiting groove (414), and the air outlet (416) is connected to the interior of the L-shaped connecting pipe (413).

10. A hydraulic cylinder boring device according to claim 1, characterized in that, The air outlet (417) and the air outlet (416) are concentrically arranged, and the air outlet (417) is located outside the L-shaped connecting pipe (413).

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