CN218964578U

CN218964578U - Hydraulic outer circle polishing cutter

Info

Publication number: CN218964578U
Application number: CN202223208706.6U
Authority: CN
Inventors: 许嗣飞; 甘剑泉
Original assignee: Guangxi Xinboxuan Machinery Technology Co ltd
Current assignee: Guangxi Xinboxuan Machinery Technology Co ltd
Priority date: 2022-12-01
Filing date: 2022-12-01
Publication date: 2023-05-05
Anticipated expiration: 2032-12-01

Abstract

The utility model discloses a hydraulic excircle polishing cutter which is characterized in that a cutter head assembly is mounted in a cutter body assembly mounting hole, a retainer ring for a hole is mounted in the hole retainer ring mounting hole, a first oil duct is connected with a second oil duct and a cutter withdrawal ring groove to the tail part of the cutter head assembly, meanwhile, a process plug is mounted in a process plug hole, a sealing piston assembly is mounted in a sealing piston assembly mounting hole, a metering spring is mounted in a metering spring mounting hole, and an adjusting screw is mounted in an adjusting screw mounting hole. The adjusting screw directly adjusts the metering spring, the metering spring generates acting force after being compressed and transmits the acting force to the piston assembly, the piston assembly generates force towards the direction of the cutter head assembly, and the acting force is transmitted to the cutter head through hydraulic oil transmission injected into the cutter body in advance. The hydraulic transmission tool bit assembly is uniformly stressed, and the precision of the hydraulic transmission tool bit assembly and the tool body are improved, so that the feeding precision is ensured. The design for preventing the cooling oil from infiltration is reliable in use. Compared with the traditional mechanical structure, the device has the advantages of low manufacturing difficulty and manufacturing cost, economy and batch production.

Description

Hydraulic outer circle polishing cutter

Technical Field

The utility model belongs to the field of machining, and particularly relates to a hydraulic excircle burnishing tool.

Background

The prior art is mainly used for boring and milling on a machine tool to achieve the effect of replacing grinding by a turning planing machine, however, the precision requirements of parts in industries such as engineering machinery, ocean power, aviation, medical treatment, wind power and the like are higher and higher, in view of the fact that certain products with larger body shapes and special shapes cannot achieve the requirement of processing precision through a grinding technology, a burnishing tool on the market is generally of a mechanical structure, the matching precision of a tool body and a tool bit is poor, generally between 0.03 and 0.05, the precision requirement of feeding 0.01-0.03 cannot be met, the structure has no anti-extravasation function, the isolation effect on machine tool cooling oil cannot be achieved, impurities mixed with the oil can enter a matching surface after long-time use, clamping stagnation is caused, and processing stability is affected. Prior art application number: CN201820209064.6, name: the utility model provides a novel external diameter burnishing cutter, includes handle of a knife, dabber and cover establish at dabber and the outer shell of handle of a knife outside, is provided with the burnishing hole that is used for carrying out burnishing processing to the product in the dabber, burnishing cutter still includes: at least three rolling pins for improving the surface finish of the outer diameter of the product, which are rotatably arranged on the hole wall of the burnishing hole close to the insertion end of the product; the side wall of each roller pin protrudes out of the hole wall of the extrusion hole, and the center of the circumscribed circle of the roller pin is located on the central axis of the mandrel. Prior art application number: CN202120335554.2, name: the utility model provides a novel cutting and burnishing reamer, includes the tool bit, the rear end of tool bit is provided with the tool neck, the rear end of tool neck is provided with the handle of a knife, its characterized in that, the section of tool bit is square and be provided with the rectangular channel unanimous with its length direction in its four side arris angles department, be provided with the alloy body in the rectangular channel, the alloy body is provided with the guiding strip in its one end of keeping away from the handle of a knife, the alloy body includes rectangular part and triangle, rectangular part and rectangular channel tight fit, the both sides inclined plane of triangle all flushes rather than the side of place tool bit, the top of triangle is the circular-arc face of burnishing, the face of burnishing of four alloy bodies on the tool bit has the same arc, the side of burnishing face is the cutting edge, the bottom of alloy body is provided with a plurality of radiating grooves, be provided with a plurality of radial holes that distribute along its length direction on the groove face of rectangular channel, the center of tool bit is provided with the axial groove with the alloy end cap that communicates with radial hole. This patent application is not the same as the prior art.

Disclosure of Invention

The utility model aims to use an improved hydraulic transmission structure to fully utilize the space of a cutter body

The oil cavity is designed, the piston is pushed by the metering spring to apply a driving force to the tool bit through the static hydraulic oil in the memory, and the acting force can be adjusted indirectly through adjusting the plug connected with the metering spring, so that the oil cavity is used in occasions with different processing requirements and precision processing. The hydraulic outer circle polishing cutter has the advantages of compact structure, economy, practicability, delicacy, stability and strong universality.

The technical solution of the utility model is as follows: the hydraulic outer circle polishing cutter comprises a cutter body, an adjusting screw, a metering spring, a sealing piston assembly, a sealing piston, a first O-shaped ring, a spring mounting position, a hole retainer ring, a process plug, a cutter head assembly, diamond stones, a second O-shaped ring, a cutter head body, an adjusting screw mounting hole, a metering spring mounting hole, a sealing piston assembly mounting hole, a hole retainer ring mounting hole, a process plug hole, a cutter withdrawal ring groove, a check ring dismounting hole, a first oil duct, a second oil duct, a cutter body assembly mounting hole and a compression front cavity, and is characterized in that the cutter head assembly 7 is mounted to the cutter body assembly mounting hole 17, the cutter head assembly mounting hole 11 is internally provided with the retainer ring 5, the first oil duct 15 connects the second oil duct 16 and the cutter withdrawal ring groove 13 to the tail of the cutter head assembly 7, the process plug 6 is mounted to the process plug hole 12, the sealing piston assembly 4 is mounted to the sealing piston assembly mounting hole 10, the metering spring 3 is mounted to the metering spring mounting hole 9, and the adjusting screw 2 is mounted to the adjusting screw mounting hole 8.

The front end of the tool bit assembly 7 is provided with a diamond 7-1, a tool bit body 7-3 and a second O-shaped ring 7-2, the tool bit body 1 is provided with a tool bit assembly mounting hole 17 for mounting the tool bit assembly 7, the front end of the tool bit assembly mounting hole 17 is provided with a hole retainer ring mounting hole 11, the hole retainer ring 11 is provided with a hole retainer ring 5 corresponding to the tool bit assembly 7, the tool bit 1 is provided with a process plug hole 12 communicated with a second oil duct 16, the second oil duct 16 is communicated with a first oil duct 15, the first oil duct 15 is communicated with a sealing piston assembly mounting hole 10, the tool bit assembly mounting hole 17 is provided with a retainer ring 5, the rear of the sealing piston assembly 4 is provided with a metering spring 3, the rear of the metering spring 3 is provided with an adjusting screw 2, the front of the sealing piston assembly 4 is provided with a compression front cavity 18, the tool bit assembly 7 is mounted to the tool bit assembly mounting hole 17 for pressing the retainer ring 5, hydraulic oil is injected from the process plug hole 12 to enable the sealing piston assembly mounting hole 10, the compression front cavity 18 is communicated with the first oil duct 15, the rear of the metering spring 3 is provided with an adjusting screw 2, the process plug 6 is mounted to the process plug 12, the hydraulic oil is communicated with the process plug 12 through the process plug 12 to the first oil duct 15, the hydraulic oil duct 16 is communicated with the second oil duct 16 through the process plug 16 and the process plug 16 is communicated with the process plug 16.

The sealing piston 4-1 is assembled with a first O-shaped ring 4-2 to form a sealing piston assembly 4, the sealing piston 4-1 is assembled to a sealing piston assembly mounting hole 10 to be communicated with a first oil duct 15 correspondingly, the included angle between the mounting reference center of the cutter body 1 and the hole center line of the cutter head assembly 7 is +135 degrees to +225 degrees, the cutter head assembly 7 comprises a diamond stone 7-1, a second O-shaped ring 7-2 and a cutter head body 7-3, and a disassembly retainer ring is arranged at the position of a hole clamp spring groove of a cutter body assembly mounting hole 17 on the cutter body 1

The hole 14, the cylindricity of the inner hole of the cutter body component mounting hole 17 of the cutter body 1 is within 0.001-0.010mm, the roughness R of the sealing piston component mounting hole 10 is 0.1-0.5 mm, and the cylindricity is 0.001-0.010mm.

Compared with the prior art, the utility model has the outstanding effects that: and the hydraulic transmission is adopted, so that the stress of the cutter head assembly is uniform, the precision of the cutter head assembly and the cutter body are improved, and the feeding precision is ensured. The combination of the incompressibility of the hydraulic oil and the good shock absorption of the hydraulic oil has excellent comprehensive performance of the cutter. The design of preventing the cooling oil from infiltration is more reliable in use. Compared with the traditional mechanical structure, the hydraulic burnishing cutter has low manufacturing difficulty and manufacturing cost. Compared with the prior art, the method has the characteristics of economy and batch production. Extrusion is a non-cutting plastic working method. The burnishing non-cutting processing technology is safe and convenient, can accurately control the precision, and has several advantages:

1. the surface roughness is improved, and the roughness basically can reach Ra less than or equal to 0.1 mu m.

2. The roundness is corrected, and the ellipticity is less than or equal to 0.01mm.

3. Improving the surface hardness, eliminating the stress deformation, improving the hardness by HV more than or equal to 40 DEG

4. After processing, the residual stress layer exists, and the fatigue strength is improved by 30 percent.

5. The matching quality is improved, the abrasion is reduced, the service life of the part is prolonged, but the processing cost of the part is reduced.

6. High efficiency: the surface can be processed to the required surface precision in a few seconds, and the efficiency is 5-20 times of that of grinding and 10-50 times of that of turning.

7. High quality: the mirror surface precision of Ra0.05-0.10um is realized by one-time feeding; the surface is extruded and hardened, and the wear resistance and the fatigue strength are improved; the surface stress plastic deformation is eliminated, and the dimensional accuracy can be kept stable relatively for a long time.

8. Economic: investment such as capital, occupied area, power consumption, waste residue treatment and the like of large-scale equipment is not needed; no special technical investment is needed.

9. The convenience is as follows: can be clamped on any rotating and feeding equipment, and can process the mirror surface precision without professional training.

10. Environmental protection: no cutting scraps (environment protection) and low energy consumption.

11. Safety: the non-cutting rolling tool has no cutting edge.

Drawings

FIG. 1 is a schematic top view of an assembly of the present utility model.

Fig. 2 is a schematic front view of the assembly of fig. 1 in accordance with the present utility model.

Figure 3 is a cross-sectional view of A-A of figure 2 in accordance with the present utility model.

Fig. 4 is a schematic diagram of a process plug hole oil duct cutter body component mounting hole in a connecting and communicating cross-section.

Fig. 5 is a schematic front view of a tool bit assembly of the present utility model.

Fig. 6 is a schematic front view of a seal piston assembly of the present utility model.

Reference numerals: the tool comprises a tool body 1, an adjusting screw 2, a metering spring 3, a sealing piston assembly 4, a sealing piston 4-1, a first O-shaped ring 4-2, a spring mounting position 4-3, a hole retainer ring 5, a process plug 6, a tool bit assembly 7, a diamond stone 7-1, a second O-shaped ring 7-2, a tool bit body 7-3, an adjusting screw mounting hole 8, a metering spring mounting hole 9, a sealing piston assembly mounting hole 10, a hole retainer ring mounting hole 11, a process plug hole 12, a tool withdrawal ring groove 13, a retainer ring dismounting hole 14, a first oil duct 15, a second oil duct 16, a tool body assembly mounting hole 17 and a compression front cavity 18.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

In the embodiment 1, the pressure finishing processing applies a driving force to the static hydraulic oil in the internal memory to the tool bit through the pushing piston of the metering spring, and the adjustment of acting force can be realized indirectly through adjusting the plug connected with the metering spring, so that the application of occasions with different processing requirements and precision processing is realized. As the extruded surface layer metal is plastically deformed, the surface layer tissue is cold hardened and grains are thinned to form compact fiber shape, and a residual stress layer is formed, so that the hardness and the strength are improved, and the wear resistance, the corrosion resistance and the coordination of the surface of the workpiece are improved. The specific structure comprises the following components: the sealing piston assembly 4 is arranged in the sealing piston assembly mounting hole 10, the metering spring 3 is arranged behind the sealing piston assembly 4, the adjusting screw 2 is arranged behind the metering spring 3, the metering spring 3 is arranged in the metering spring mounting hole 9, and the adjusting screw 2 is arranged in the adjusting screw mounting hole 8. The seal piston assembly mounting hole 10 communicates with the first oil passage 15. The adjusting screw 2 directly adjusts the metering spring 3, the metering spring 3 generates acting force after being compressed and transmits the acting force to the sealing piston assembly 4, the sealing piston assembly 4 generates force towards the tool bit assembly 7, the acting force is transmitted to the tool bit assembly 7 through hydraulic oil which is injected into the first oil duct 15 in the tool body 1 in advance, and therefore the diamond stone 7-1 of the tool bit assembly 7 generates linear softer external force on the machining surface to squeeze light on the surface of a machining object. The front end of the tool bit assembly 7 is provided with a diamond stone 7-1, a tool bit body 7-3 and a second O-shaped ring 7-2 which are used as sealing functions. The cutter body 1 is provided with a cutter body assembly mounting hole 17 for mounting the cutter head assembly 7, a hole check ring mounting hole 11 is formed in the front end of the cutter body assembly mounting hole 17, and the hole check ring mounting hole 11 is used for limiting the cutter head assembly 7 after being provided with the hole check ring 5. The cutter body 1 is provided with a craft plug

The hole 12 communicates with a second oil passage 16, and the second oil passage 16 communicates with the first oil passage 15. The first oil duct 15 is communicated with the sealing piston assembly mounting hole 10, the sealing piston 4-1 is assembled with the first O-shaped ring 4-2 to form the sealing piston assembly 4, the sealing piston 4-1 is assembled to the sealing piston assembly mounting hole 10 to play a sealing role on hydraulic oil in the first oil duct 15, the spring mounting position 4-3 on the sealing piston 4-1 faces the metering spring mounting hole 9, the metering spring 3 is mounted to the metering spring mounting hole 9, and the adjusting screw 2 is mounted to the adjusting screw mounting hole 8.

In the embodiment 2, the cutter body 1 adopts 42CrMo high alloy steel, and the integral hard HRC is 45-50, so that the rigidity and strength of the cutter body are ensured sufficiently, and the surface of the cutter body adopts a liquid nitriding treatment process, so that the cutter body has strong rust and corrosion resistance; after the cutter head assembly 7 is mounted on the cutter body 1, the center height is fully covered from 12mm or 16mm or 20mm or 25mm or 32mm, and the clamping positions are respectively 12 x 12 or 16 x 16 or 20 x 20 or 25 x 25 or 32 x 32; the included angle between the installation reference center of the cutter body 1 and the center line of the hole of the cutter head assembly 7 can be manufactured to be in the range of +135 degrees to +225 degrees, and the cutter body is suitable for burnishing processing from the outer circle to the end surface and forward feeding and reverse processing; the tool bit assembly 7 comprises a diamond stone 7-1, a second O-shaped ring 7-2 and a tool bit body 7-3, and plays a role in sealing internal hydraulic oil in a static or movable state and simultaneously prevents external cooling oil from entering the tool bit; the machining precision of the inner hole of the cutter body assembly mounting hole 17 is extremely high, the cylindricity is within 0.005mm, the matching interval between the outer circle of the cutter body 7 and the inner circle of the cutter body assembly mounting hole 17 is 0.005-0.008 mm, the cutter body assembly 7 is flexibly movable after assembly, and the feeding precision of 0.01-0.03 mm during machining is greatly ensured; a check ring dismounting hole 14 communicated with the appearance is designed at a clamp spring groove of a hole opening of a cutter body assembly mounting hole 17 on the cutter body 1, so that a check ring 5 for holes is convenient to dismount, and the cutter head assembly 7 is replaced and a maintenance cutter is maintained; the roughness R of the mounting hole 10 of the sealing piston assembly is within 0.01-0.5, the cylindricity is within 0.001-0.01 mm, and the flexibility, sealing and no clamping stagnation of the piston are ensured; the adjusting screw 2 is adjusted to compress the metering spring 3 to push the sealing piston assembly 4, the sealing piston assembly 4 generates a force towards the tool bit assembly 7, and the acting force is transmitted to the tool bit assembly 7 through hydraulic oil transmission in the tool bit assembly 7, so that the diamond head 7-1 of the tool bit assembly 7 generates a linear softer external force to the processing surface to squeeze the surface of the processing object.

In embodiment 3, the front end of the tool bit assembly 7 is provided with a diamond 7-1, a tool bit body 7-3 and a second O-shaped ring 7-2, the tool bit assembly 7 is installed in the tool bit assembly installation hole 17, the front end of the tool bit assembly installation hole 17 is provided with a hole check ring installation hole 11, the hole check ring installation hole 11 is provided with a hole check ring 5, the tool bit assembly 7 is limited, the process plug hole 12 is communicated with the second oil duct 16, the second oil duct 16 is communicated with the first oil duct 15, and the first oil duct 15 is communicated with the sealing piston assembly installation hole 10. The first oil duct 15 is communicated with the sealing piston assembly mounting hole 10, the sealing piston 4-1 is assembled with the first O-ring 4-2 to form the sealing piston assembly 4, and the sealing piston 4-1 is assembled to the sealing piston assembly

The plug assembly mounting hole 10 is communicated with the first oil duct 15, the cutter body 1 is made of 42CrMo high alloy steel, the whole body is penetrated with hard HRC45-50, the surface of the cutter body is subjected to liquid nitriding treatment, and the included angle between the mounting reference center of the cutter body 1 and the central line of the hole of the cutter body assembly 7 can be manufactured to be in a range of +135 degrees to +225 degrees. The bit assembly 7 includes diamond 7-1, a second O-ring 7-2, and a bit body 7-3. The clamp spring groove of the orifice of the cutter body assembly mounting hole 17 on the cutter body 1 is provided with a check ring dismounting hole 14 communicated with the appearance, and the cylindricity of the inner hole of the cutter body assembly mounting hole 17 of the cutter body 1 is within 0.001-0.010mm. The roughness R of the mounting hole 10 of the sealing piston assembly is 0.1-0.5 mm, and the cylindricity is 0.001-0.008 mm. The hole check ring 5 is arranged in the hole check ring mounting hole 11, the metering spring 3 is arranged behind the sealing piston assembly 4, the adjusting screw 2 is arranged behind the metering spring 3, the front part of the sealing piston assembly 4 is provided with the compression front cavity 18, the tool bit assembly 7 is arranged in the tool bit assembly mounting hole 17 and then is pressed into the hole check ring 5, hydraulic oil is injected into the sealing piston assembly mounting hole 10 from the process plug hole 12, the compression front cavity 18 is communicated with the first oil duct 15, the adjusting screw 2 is screwed in after the metering spring 3 is arranged, the process plug 6 is arranged in the process plug hole 12, hydraulic oil enters and flows into the first oil duct 15 to the compression front cavity 18 through the process plug hole 12, and the hydraulic oil enters and flows into the relief tool bit annular groove 13 through the process plug hole 12 and is communicated with the tool body assembly mounting hole 17.

Claims

1. The utility model provides a hydraulic pressure excircle is crowded smooth sword, including the cutter body, adjusting screw, the metering spring, the sealing piston subassembly, sealing piston, first O type circle, the spring mount position, the retaining ring for the hole, the technology end cap, the tool bit subassembly, the buddha's warrior attendant stone, the second O type circle, the cutter body, the adjusting screw mounting hole, the metering spring mounting hole, sealing piston subassembly mounting hole, hole retaining ring mounting hole, technology end cap hole, the backing ring groove, tear open the retaining ring hole, first oil duct, the second oil duct, cutter body subassembly mounting hole and compression front chamber, characterized in that tool bit subassembly (7) are installed to cutter body subassembly mounting hole (17), mounting hole retaining ring (5) for the hole in hole retaining ring mounting hole (11), first oil duct (15) connect second oil duct (16) and connect backing ring groove (13) to tool bit subassembly (7) afterbody, technology end cap (6) are installed to technology end cap (12), sealing piston subassembly (4) are installed to sealing piston subassembly mounting hole (10), metering spring (3) are installed to metering spring mounting hole (9), adjusting screw (2) are installed to adjusting screw (8).

2. The hydraulic outer circle polishing cutter according to claim 1, wherein the front end of the cutter head assembly (7) is provided with a diamond stone (7-1), a cutter head body (7-3) and a second O-shaped ring (7-2), the cutter body (1) is provided with a cutter head assembly (7), the front end of the cutter head assembly (17) is provided with a hole retainer ring mounting hole (11), the hole retainer ring (11) is provided with a retainer ring (5) corresponding to the cutter head assembly (7), the cutter body (1) is provided with a process plug hole (12) communicated with a second oil duct (16), the second oil duct (16) is communicated with a first oil duct (15), the first oil duct (15) is communicated with a sealing piston assembly mounting hole (10), the cutter head assembly mounting hole (17) is provided with a retainer ring (5), the rear of the sealing piston assembly (4) is provided with a metering spring (3), the rear of the metering spring (3) is provided with an adjusting screw (2), the front part of the sealing piston assembly (4) is provided with a compression front cavity (18), the cutter head assembly (7) is provided with a cutter head assembly (17) and the cutter head assembly (17) is provided with a process plug hole (12) communicated with the second oil duct (15) through the first oil duct (15), the metering spring (3) is followed by an adjusting screw (2), the process plug (6) is mounted on the process plug hole (12), hydraulic oil is communicated to the first oil duct (15) through the process plug hole (12) to the compression front cavity (18), hydraulic oil is communicated to the second oil duct (16) through the process plug hole (12), and the second oil duct (16) is communicated with the cutter body assembly mounting hole (17).

3. The hydraulic excircle polishing cutter according to claim 1, wherein the sealing piston (4-1) is assembled with a first O-shaped ring (4-2) to form a sealing piston assembly (4), the sealing piston (4-1) is assembled to a mounting hole (10) of the sealing piston assembly to be communicated with a first oil duct (15), the included angle between the mounting reference center of the cutter body (1) and the hole center line of the cutter head assembly (7) is between +135 degrees and +225 degrees, the cutter head assembly (7) comprises diamond stones (7-1), a second O-shaped ring (7-2) and a cutter head body (7-3), and a hole clamp spring groove of a cutter body assembly mounting hole (17) on the cutter body (1)

The cutter body assembly comprises a cutter body assembly mounting hole (17) with the inner hole cylindricity of 0.001-0.010mm, a sealing piston assembly mounting hole (10) with the roughness R of 0.1-0.5 mm and the cylindricity of 0.001-0.010mm, and a dismounting retainer ring hole (14) is arranged.