CN215846076U - Seal ring hole machining reamer - Google Patents

Abstract

The utility model discloses a reamer for machining holes in a sealing ring, which comprises a cutter handle, wherein a mounting hole is formed in the cutter handle, a reamer is arranged on the outer side of the cutter handle, a second groove is formed in the inner side of the reamer and positioned on the outer side of the first groove, a blade is fixedly connected to the outer side of the reamer and positioned at the lower end of the second groove, a chamfer end is arranged on the outer side of the blade, and a third groove is formed in the outer side of the blade. This seal ring spot facing work reamer, change the knife tip circular arc minimum radius of original blade into R0.1, change the cutting edge into twolip from the single-edged, use this welded reamer simultaneously and can not need to monitor the moment of torsion of the M2 locking bolt of original dress blade boring cutter, the unstable risk of machining dimension that the bolt becomes flexible and bring has been eliminated, make this structure simpler, it is more convenient to use, the efficiency of tool changing has been improved, the cutter that gets off changed simultaneously can also return to the cutter producer and carry out simple reprocessing treatment, the practicality is greatly improved.

Description

Seal ring hole machining reamer

Technical Field

The utility model relates to the technical field of machining of mechanical parts, in particular to a reamer for machining a sealing ring hole.

Background

The machining process refers to a process of changing the external dimensions or properties of a workpiece by a mechanical device, and can be divided into cutting process and pressure process according to the difference of processing modes, the production process of a machine refers to the whole process of manufacturing a product from raw materials (or semi-finished products), for machine production, the transportation and storage of the raw materials, preparation of production, manufacturing of blanks, processing and heat treatment of parts, assembly and debugging of the product, painting, packaging and other contents, the content of the production process is very wide, modern enterprises organize production and guide production by using the principles and methods of system engineering, the production process is regarded as a production system with input and output, in the production process, all the processes of changing the shape, size, position, properties and the like of a production object to make the production object become a finished product or a semi-finished product are called as process processes which are the main part of the production process, the technological process can be divided into casting, forging, stamping, welding, machining, assembling and other technological processes, the mechanical manufacturing process generally refers to the sum of the machining technological process of the part and the assembling technological process of the machine, other processes are called as auxiliary processes, such as transportation, storage, power supply, equipment maintenance and the like, the technological process is composed of one or a plurality of processes which are arranged in sequence, one process is composed of a plurality of steps, the machine required for machining comprises a digital display milling machine, a digital display forming grinding machine, a digital display lathe, an electric spark machine, a universal grinding machine, a machining center, laser welding, middle wire walking, fast wire walking, slow inner wire walking, outer circle grinding machine, precision lathe and the like, the machining of the precision part can be carried out, the milling, the planing, the grinding and the like, the machining of the mechanical precision part which is good at the utmost can machine various irregular parts, the machining precision can reach 2 mu m, and currently, in the machining process of machining center equipment of various sealing ring mounting holes of aluminum alloy parts of automobile cylinder bodies and cylinder covers, the holes are automatically assembled by a robot directly in the whole engine vehicle assembling process, so that the moment for pushing the sealing rings by the robot is constant, the pulling-out force of the sealing rings can be automatically detected after the sealing rings are assembled, and different roughness requirements from the previous requirements need to be carried out on the holes.

However, the existing reamer for machining a seal ring hole is machined by mounting a blade on a boring cutter holder, and has the disadvantages that the mounting of the blade needs to be performed on a precise tool setting instrument, the dimension is adjusted by an adjusting screw on the boring machine, a lot of time is needed for adjustment, time and labor are wasted, the efficiency is low, the machining requirement of the roughness is realized by reducing the rotating speed and increasing the feeding speed for the single-edged blade to obtain the roughness of Rz 8-16 (mum), but the service life of the cutter is damaged, the service life of the cutter is reduced, the machining precision is insufficient when the machining is carried out, the machining dimension can be kept stable by adopting the double-edged or multi-edged reamer, and when the stable dimension is obtained, no matter the cutter with a straight edge or a spiral edge, the cutting position of the sealing ring is not dependent on the cutting of a tool nose, but depends on a side edge, the cutting edge is provided with a trimming, a certain trimming extrusion effect can be generated in the processing process, the roughness after processing is generally about Rz 3-5 (mum), and Rz 8-16 (mum) required by a sealing ring hole cannot be obtained, so that a machined part cannot meet the requirement, and the practicability is greatly reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a reamer for processing a sealing ring hole, which solves the problems that the existing reamer for processing the sealing ring hole, which is proposed in the background technology, is processed by mounting a blade on a boring cutter handle, has the defects that the mounting of the blade needs to be carried out on a precise tool setting instrument, the size is adjusted by an adjusting screw on a boring machine, a large amount of time is needed for adjustment, time and labor are wasted, the efficiency is lower, the rotating speed is reduced and the feeding speed is increased for obtaining the roughness of Rz 8-16 (mum) by the blade with a single edge to meet the processing requirement of the roughness, but the service life of a cutter is damaged, the service life of the cutter is shortened, the size of a processed part is easy to fluctuate during processing, the processing precision is insufficient, and the reamer with double edges or multiple edges is simultaneously used for processing, the machining size can be kept stable, when the stable size is obtained, no matter the cutter with the straight edge or the cutter with the spiral edge is used, the cutting position is not cut by a cutter point, but by a side edge, the cutting edge is provided with a trimming light, a certain trimming light extrusion effect can be generated in the machining process, the roughness after machining is generally about Rz 3-5 (mum), Rz 8-16 (mum) required by a sealing ring hole cannot be obtained, the machined part can not meet the requirement, and the problem of practicability is greatly reduced.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a seal ring spot facing work reamer, includes the handle of a knife, the mounting hole has been seted up to the inside of handle of a knife, the outside of handle of a knife is provided with the reamer, welded connection between reamer and the handle of a knife, first groove has been seted up to one side of reamer outer end, the second groove has been seted up to the opposite side of reamer outer end, first recess has been seted up to the inside of reamer, the inside of reamer is located the outside of first recess and has been seted up the second recess, the outside of reamer is located the lower extreme fixedly connected with blade of second recess, the outside of blade is provided with the chamfer end, the third groove has been seted up in the outside of blade.

Preferably, the knife handle is designed to be of a frustum pyramid structure, and the knife handle and the external knife holder are connected with each other through the mounting holes, so that the knife handle and the external knife holder can be conveniently mounted with equipment.

Preferably, the reamer, the first groove and the second groove are designed in a circular structure, and the reamer, the first groove and the second groove are distributed in a stepped mode, so that the processing is convenient.

Preferably, the diameter of the chamfered end is 0.1mm, and the required processing roughness can be directly obtained.

Preferably, the distance between one side of the third groove and the chamfer end is 0.2mm, so that the cutter can better discharge chips during cutting.

Compared with the prior art, the utility model has the beneficial effects that: the sealing ring hole machining reamer has the advantages that through the arrangement of the tool holder, the mounting hole, the reamer, the first groove, the second groove, the blade, the chamfer end and the third groove, the minimum radius of the circular arc of the tool nose of the original blade is R0.2, the calculated machining roughness of the tool nose of R0.2 is Rz7 through a roughness formula, the requirements of customers cannot be met, therefore, the minimum radius of the circular arc of the tool nose is changed into R0.1, meanwhile, compared with a double-edged reamer, the blade of a single-edged R0.1 has half difference in dimensional stability and service life of the blade, so that the cutting edge is changed from a single edge to a double-edged reamer, meanwhile, the welding type reamer can be used without monitoring the torque of an M2 locking bolt of the original boring tool with the blade, the risk of unstable machining size caused by bolt loosening is eliminated, meanwhile, the reamer adopts the reamer and the BT integral type reamer, compared with a conventional reamer and a BT collet chuck, the split type reamer and the tool holder are locked through ER elastic collet chuck, the welded mode has reduced the concentricity error (0.003 ~ 0.005) that arouses after the locking, avoided because lock the dress sword repeatedly for a long time, the elasticity of elasticity collet chuck descends, the bigger and bigger problem of its error, make this structure simpler, it is more convenient to use, cutter engineer directly changes after the cutter wearing and tearing simultaneously, need not carry out the adjustment of blade bore hole size through with the help of the tool setting instrument when the tool changing at every turn, the efficiency of tool changing has been improved, the cutter that changes simultaneously down can also return the cutter producer and carry out simple reprocessing, the practicality is greatly improved.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic cross-sectional view of the present invention.

In the figure: 1. a knife handle; 2. mounting holes; 3. a reamer; 4. a first bevel; 5. a second bevel; 6. a first groove; 7. a second groove; 8. a blade.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides a seal ring spot facing work reamer, including handle of a knife 1, mounting hole 2 has been seted up to handle of a knife 1's inside, the outside of handle of a knife 1 is provided with reamer 3, welded connection between reamer 3 and the handle of a knife 1, first groove 4 has been seted up to one side of reamer 3 outer end, second groove 5 has been seted up to the opposite side of reamer 3 outer end, first recess 6 has been seted up to the inside of reamer 3, second recess 7 has been seted up to the outside that the inside of reamer 3 is located first recess 6, the outside of reamer 3 is located the lower extreme fixedly connected with blade 8 of second recess 7, the outside of blade 8 is provided with the chamfer end, the third groove has been seted up in the outside of blade 8.

Further, handle of a knife 1 adopts the design of prismoid form structure, through mounting hole 2 interconnect between handle of a knife 1 and the outside blade holder, conveniently installs with equipment.

Further, reamer 3, first groove 4 and second groove 5 all adopt circular structural design, are cascaded distribution between reamer 3, first groove 4 and the second groove 5, the needs of convenient processing.

Furthermore, the diameter of the chamfer end is 0.1mm, and the required processing roughness can be directly obtained.

Furthermore, the distance between one side of the third groove and the chamfer end is 0.2mm, so that the cutter can better remove chips during cutting.

The working principle is as follows: at first, set the outside of blade 8 into the twolip face, the position chamfer of the 8 knife noses of blade simultaneously is R0.1, can directly obtain the processing surface roughness, reach the requirement of processing, be connected through the welded mode between reamer 3 and the handle of a knife 1 simultaneously, it is fixed not need to lock through the bolt, thereby reduce tool changing adjustment time, and the machining efficiency is improved, the height of knife noses has been improved simultaneously, make the cutter at the reaming in-process discharge aluminium bits that can both be fine, better completion is to the control of roughness, with the processing requirement that reaches the customer, thereby greatly reduced the product cost of manufacture, with this improvement machining efficiency and quality.

Finally, it should be noted that the above-mentioned contents are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, and that the simple modifications or equivalent substitutions of the technical solutions of the present invention by those of ordinary skill in the art can be made without departing from the spirit and scope of the technical solutions of the present invention.

Claims (5)

1. The utility model provides a seal ring spot facing work reamer, includes handle of a knife (1), its characterized in that: mounting hole (2) have been seted up to the inside of handle of a knife (1), the outside of handle of a knife (1) is provided with reamer (3), welded connection between reamer (3) and handle of a knife (1), first groove (4) have been seted up to one side of reamer (3) outer end, second groove (5) have been seted up to the opposite side of reamer (3) outer end, first recess (6) have been seted up to the inside of reamer (3), second recess (7) have been seted up in the outside that the inside of reamer (3) is located first recess (6), the lower extreme fixedly connected with blade (8) that the outside of reamer (3) is located second recess (7), the outside of blade (8) is provided with the chamfer end, the third groove has been seted up in the outside of blade (8).

2. The reamer for machining the hole of the seal ring according to claim 1, wherein: the knife handle (1) is designed to be of a frustum pyramid structure, and the knife handle (1) and an external knife holder are connected with each other through a mounting hole (2).

3. The reamer for machining the hole of the seal ring according to claim 1, wherein: the reamer (3), the first groove (4) and the second groove (5) are designed in a circular structure, and the reamer (3), the first groove (4) and the second groove (5) are distributed in a stepped mode.

4. The reamer for machining the hole of the seal ring according to claim 1, wherein: the diameter of the chamfered end is 0.1 mm.

5. The reamer for machining the hole of the seal ring according to claim 1, wherein: and the distance between one side of the third groove and the chamfer end is 0.2 mm.

Images