CN214684552U - Reamer structure for cylinder block rocker arm hole - Google Patents
Reamer structure for cylinder block rocker arm hole Download PDFInfo
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- CN214684552U CN214684552U CN202120952487.9U CN202120952487U CN214684552U CN 214684552 U CN214684552 U CN 214684552U CN 202120952487 U CN202120952487 U CN 202120952487U CN 214684552 U CN214684552 U CN 214684552U
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Abstract
The utility model discloses a reamer structure for a cylinder block rocker arm hole, which comprises a reamer body, wherein the reamer body comprises a cutter bar, the cutter bar comprises a clamping rod at the rear end, and the clamping rod is used for clamping a machine tool; the cutter bar also comprises a mounting rod at the front end, and a blade is arranged on the mounting rod; the mounting rod comprises a mounting rod front section, a mounting rod middle section and a mounting rod rear section, and the diameters of the mounting rod front section, the mounting rod middle section and the mounting rod rear section are gradually increased so that the mounting rod is integrally in a stepped shaft structure; the blade comprises a plurality of first blades which are arranged on the outer circumferential surface of the front section of the mounting rod and are uniformly distributed along the circumference, the first blades are integrally of a long strip-shaped structure and are arranged along the axial direction of the mounting rod, each first blade comprises a first blade vertical section at the front end, and the diameter corresponding to the outer contour of the first blade vertical section is matched with the diameter of the lower section of the rocker arm hole of the cylinder body; the utility model has the advantages of can improve cylinder block rocking arm hole reaming precision, can improve machining efficiency.
Description
Technical Field
The utility model belongs to the technical field of the reamer, concretely relates to cylinder block is reamer structure for rocker arm hole.
Background
The reamer is a rotary tool having one or more teeth for cutting a thin layer of metal on the surface of a machined hole, and the reamer is a rotary finishing tool having a straight edge or a spiral edge for reaming or repairing the hole. The processing precision requirement of the reamer is usually higher than that of a drill bit due to the fact that the cutting amount of the reamer is small, and the reamer can be operated manually or installed on a drilling machine to work.
As shown in fig. 1, the cylinder block has a rocker arm hole, the rocker arm hole includes a lower rocker arm hole section and an upper rocker arm hole section, and the diameter of the lower rocker arm hole section is smaller than that of the upper rocker arm hole section so that the rocker arm hole is of a stepped hole structure as a whole. The cylinder body is also provided with a butt joint hole and is arranged to penetrate through the upper section of the rocker arm hole. The upper end of the lower section of the rocker arm hole is provided with a first chamfer angle, and the open end of the upper section of the rocker arm hole is provided with a second chamfer angle; a step surface is arranged between the upper section of the rocker arm hole and the lower section of the rocker arm hole. When the rocker arm hole is machined, the reaming and finishing steps are included, the conventional reamer is used for reaming each part of the rocker arm hole one by one, and a plurality of reamers are needed, so that the reaming precision is reduced, and the machining efficiency is low.
Therefore, it is a technical problem to be solved by those skilled in the art how to provide a reamer structure for a cylinder block rocker hole, which has a simple structure, can improve the accuracy of reaming a cylinder block rocker hole, and can improve the machining efficiency.
SUMMERY OF THE UTILITY MODEL
To the not enough of above-mentioned prior art, the utility model aims to solve the technical problem that: how to provide a simple structure can improve cylinder block rocking arm reaming precision, can improve machining efficiency's cylinder block rocking arm reamer structure for hole.
In order to solve the technical problem, the utility model discloses a following technical scheme:
a reamer structure for a rocker arm hole of an air cylinder body comprises a reamer body, wherein the reamer body comprises a cutter bar, the cutter bar comprises a clamping rod at the rear end, and the clamping rod is used for clamping a machine tool; the cutter bar also comprises a mounting rod at the front end, and a blade is arranged on the mounting rod; the installation rod comprises an installation rod front section, an installation rod middle section and an installation rod rear section, and the diameters of the installation rod front section, the installation rod middle section and the installation rod rear section are gradually increased so that the installation rod is integrally in a stepped shaft structure; the blade comprises a plurality of first blades which are arranged on the outer circumferential surface of the front section of the mounting rod and are uniformly distributed along the circumference, the first blades are integrally of a long strip-shaped structure and are arranged along the axial direction of the mounting rod, each first blade comprises a first blade vertical section at the front end, and the diameter corresponding to the outer contour of the first blade vertical section is matched with the diameter of the lower section of the rocker arm hole of the cylinder body; the rear end of the first blade inclines towards the direction departing from the axis of the mounting rod and forms a first blade inclined section, and the outer side surface of the first blade inclined section is matched with a first chamfer angle in the rocker arm hole of the cylinder body; the blades comprise a plurality of second blades which are arranged on the outer circumferential surface of the middle section of the mounting rod and are uniformly distributed along the circumference, and the front end surfaces of the second blades are positioned outside a step surface formed by the front section of the mounting rod and the middle section of the mounting rod and are used for processing a step surface between the upper section of the rocker arm hole and the lower section of the rocker arm hole; the blades comprise a plurality of third blades which are arranged on the outer circumferential surface of the front end of the rear section of the mounting rod and are uniformly distributed along the circumference, and the corresponding diameters of the outer contours of the third blades are matched with the diameter of the upper section of the rocker arm hole of the cylinder body; the blade is including setting up and be a plurality of fourth blades that evenly distributed along the circumference on the outer periphery of installation pole rear end, and fourth blade middle part has an inclined section and is the matching setting with the downthehole second chamfer of cylinder block rocking arm.
Therefore, in the reamer structure, the first blade, the second blade, the third blade and the fourth blade are arranged, the first blade is used for machining a first chamfer angle formed at the lower section of the rocker arm hole and the upper end of the lower section of the rocker arm hole, the second cutter is used for machining a step surface formed between the lower section of the rocker arm hole and the upper section of the rocker arm hole, the third blade is used for machining the upper section of the rocker arm hole, and the fourth blade is used for machining a second chamfer angle formed at the upper section of the rocker arm hole. The first blade, the second blade, the third blade and the fourth blade are arranged on the same cutter bar in a centralized mode, five processing steps can be completed simultaneously, and the cutter bar has the advantages of being simple in structure, capable of improving the reaming precision of the rocker arm hole of the cylinder body and capable of improving the processing efficiency.
As optimization, the outer circumferential surface of the front section of the mounting rod is provided with two first mounting grooves, and the first blades are respectively mounted on the two first mounting grooves.
Therefore, the first blade is more convenient to mount, the structure is simpler, and the design is more reasonable.
As optimization, two second mounting grooves are formed in the outer circumferential surface of the middle section of the mounting rod, and the second blades are mounted in the two second mounting grooves respectively; and the first blade and the second blade are arranged at intervals in the circumferential direction.
Like this, the overall arrangement of first blade and second blade is more reasonable for whole cutter can work better.
Preferably, six third mounting grooves are formed in the outer circumferential surface of the front end of the rear section of the mounting rod, and third blades are mounted in the six third mounting grooves respectively.
Therefore, the third blade is more convenient to mount, the structure is simpler, and the design is more reasonable.
As optimization, six fourth mounting grooves are formed in the outer circumferential surface of the rear end of the rear section of the mounting rod, and fourth blades are mounted in the six fourth mounting grooves; and the third blade and the fourth blade are arranged in a one-to-one opposite mode in the circumferential direction.
Like this, the overall arrangement of third blade and fourth blade is more reasonable for whole cutter can work better.
Preferably, the blade is made of diamond or alloy steel.
Therefore, the material selection of the blade is more reasonable.
As optimization, a semicircular chip removal port penetrating through the outer side surface of the lower end of the third blade is arranged on the outer side surface of the lower end of the third blade in the thickness direction.
Therefore, the cutter can better finish chip removal during working.
Preferably, the cutter bar further comprises a shaft shoulder section in the middle, and a tool withdrawal groove is formed in the upper end face of the shaft shoulder section.
Therefore, the structure is more reasonable, and the processing and the manufacturing are more convenient.
Preferably, the clamping rod is provided with a clamping groove on the outer circumference.
Therefore, the cutter is more convenient to clamp when in use.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a left side view of fig. 1.
Fig. 3 is a bottom view of fig. 1.
Fig. 4 is a sectional view B-B of fig. 1.
Fig. 5 is a schematic structural view of the cylinder block.
Detailed Description
The invention will be further explained with reference to the following figures and examples:
referring to fig. 1 to 5: a reamer structure for a rocker arm hole of an air cylinder body comprises a reamer body 1, wherein the reamer body comprises a cutter bar 2, the cutter bar comprises a clamping rod 3 at the rear end, and the clamping rod is used for clamping a machine tool; the cutter bar also comprises a mounting rod 4 at the front end, and a blade 5 is arranged on the mounting rod; the mounting rod comprises a mounting rod front section 6, a mounting rod middle section 7 and a mounting rod rear section 8, and the diameters of the mounting rod front section, the mounting rod middle section and the mounting rod rear section are gradually increased so that the mounting rod is integrally in a stepped shaft structure; the blades comprise a plurality of first blades 9 which are arranged on the outer circumferential surface of the front section of the mounting rod and are uniformly distributed along the circumference, the first blades are integrally in a long strip-shaped structure and are arranged along the axial direction of the mounting rod, each first blade comprises a first blade vertical section at the front end, and the diameter corresponding to the outer contour of the first blade vertical section is matched with the diameter of the lower section 21 of the rocker arm hole of the cylinder block; the rear end of the first blade inclines towards the direction departing from the axis of the mounting rod and forms a first blade inclined section, and the outer side surface of the first blade inclined section is matched with a first chamfer angle 22 in the rocker hole of the cylinder body; the blades comprise a plurality of second blades 10 which are arranged on the outer circumferential surface of the middle section of the mounting rod and are uniformly distributed along the circumference, and the front end surfaces of the second blades are positioned outside a step surface formed by the front section of the mounting rod and the middle section of the mounting rod and are used for machining a step surface 23 arranged between the upper section of the rocker arm hole and the lower section of the rocker arm hole; the blades comprise a plurality of third blades 11 which are arranged on the outer circumferential surface of the front end of the rear section of the mounting rod and are uniformly distributed along the circumference, and the corresponding diameters of the outer contours of the third blades are matched with the diameter of the upper section 24 of the rocker arm hole of the cylinder body; the blades comprise a plurality of fourth blades 12 which are arranged on the outer circumferential surface of the rear end of the rear section of the mounting rod and are uniformly distributed along the circumference, and the middle parts of the fourth blades are provided with an inclined section and are arranged in a matching way with a second chamfer angle 25 in a rocker hole of the cylinder body.
Therefore, in the reamer structure, the first blade, the second blade, the third blade and the fourth blade are arranged, the first blade is used for machining a first chamfer angle formed at the lower section of the rocker arm hole and the upper end of the lower section of the rocker arm hole, the second cutter is used for machining a step surface formed between the lower section of the rocker arm hole and the upper section of the rocker arm hole, the third blade is used for machining the upper section of the rocker arm hole, and the fourth blade is used for machining a second chamfer angle formed at the upper section of the rocker arm hole. The first blade, the second blade, the third blade and the fourth blade are arranged on the same cutter bar in a centralized mode, five processing steps can be completed simultaneously, and the cutter bar has the advantages of being simple in structure, capable of improving the reaming precision of the rocker arm hole of the cylinder body and capable of improving the processing efficiency.
In this embodiment, two first mounting grooves are formed on the outer circumferential surface of the front section of the mounting rod, and the first blades 9 are mounted on the two first mounting grooves respectively.
Therefore, the first blade is more convenient to mount, the structure is simpler, and the design is more reasonable.
In the embodiment, two second mounting grooves are formed in the outer circumferential surface of the middle section of the mounting rod, and the second blades 10 are mounted on the two second mounting grooves respectively; and the first blade and the second blade are arranged at intervals in the circumferential direction.
Like this, the overall arrangement of first blade and second blade is more reasonable for whole cutter can work better.
In this embodiment, six third mounting grooves are formed in the outer circumferential surface of the front end of the rear end of the mounting rod, and the third blades 11 are mounted in the six third mounting grooves.
Therefore, the third blade is more convenient to mount, the structure is simpler, and the design is more reasonable.
In the present embodiment, six fourth mounting grooves are formed in the outer circumferential surface of the rear end of the mounting rod, and each fourth mounting groove is provided with a fourth blade 12; and the third blade and the fourth blade are arranged in a one-to-one opposite mode in the circumferential direction.
Like this, the overall arrangement of third blade and fourth blade is more reasonable for whole cutter can work better.
In this embodiment, the blade is made of diamond or alloy steel.
Therefore, the material selection of the blade is more reasonable.
In the present embodiment, a semicircular chip removal port 13 is formed on the outer side surface of the lower end of the third blade and penetrates through the thickness direction of the third blade.
Therefore, the cutter can better finish chip removal during working.
In this specific embodiment, the cutter bar further includes a shaft shoulder section 14 in the middle, and a tool withdrawal groove is arranged on the upper end surface of the shaft shoulder section.
Therefore, the structure is more reasonable, and the processing and the manufacturing are more convenient.
In this embodiment, the clamping bar is provided with a clamping groove 15 on its outer circumference.
Therefore, the cutter is more convenient to clamp when in use.
The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.
Claims (9)
1. A reamer structure for a rocker arm hole of an air cylinder body comprises a reamer body, wherein the reamer body comprises a cutter bar, the cutter bar comprises a clamping rod at the rear end, and the clamping rod is used for clamping a machine tool; the cutter bar also comprises a mounting rod at the front end, and a blade is arranged on the mounting rod; the installation rod comprises an installation rod front section, an installation rod middle section and an installation rod rear section, and the diameters of the installation rod front section, the installation rod middle section and the installation rod rear section are gradually increased so that the installation rod is integrally in a stepped shaft structure; the blade comprises a plurality of first blades which are arranged on the outer circumferential surface of the front section of the mounting rod and are uniformly distributed along the circumference, the first blades are integrally of a long strip-shaped structure and are arranged along the axial direction of the mounting rod, each first blade comprises a first blade vertical section at the front end, and the diameter corresponding to the outer contour of the first blade vertical section is matched with the diameter of the lower section of the rocker arm hole of the cylinder body; the rear end of the first blade inclines towards the direction departing from the axis of the mounting rod and forms a first blade inclined section, and the outer side surface of the first blade inclined section is matched with a first chamfer angle in the rocker arm hole of the cylinder body; the blades comprise a plurality of second blades which are arranged on the outer circumferential surface of the middle section of the mounting rod and are uniformly distributed along the circumference, and the front end surfaces of the second blades are positioned outside a step surface formed by the front section of the mounting rod and the middle section of the mounting rod and are used for processing a step surface between the upper section of the rocker arm hole and the lower section of the rocker arm hole; the blades comprise a plurality of third blades which are arranged on the outer circumferential surface of the front end of the rear section of the mounting rod and are uniformly distributed along the circumference, and the corresponding diameters of the outer contours of the third blades are matched with the diameter of the upper section of the rocker arm hole of the cylinder body; the blade is including setting up and be a plurality of fourth blades that evenly distributed along the circumference on the outer periphery of installation pole rear end, and fourth blade middle part has an inclined section and is the matching setting with the downthehole second chamfer of cylinder block rocking arm.
2. The reamer structure for the rocker hole of the cylinder block according to claim 1, wherein: be provided with first mounting groove on the outer periphery of installation pole anterior segment, first mounting groove is two and installs respectively and be provided with first blade.
3. The reamer structure for the rocker hole of the cylinder block according to claim 2, wherein: the outer circumferential surface of the middle section of the mounting rod is provided with two second mounting grooves, and the two second mounting grooves are respectively provided with the second blades; and the first blade and the second blade are arranged at intervals in the circumferential direction.
4. The reamer structure for the rocker hole of the cylinder block according to claim 1, wherein: and six third mounting grooves are formed in the outer circumferential surface of the front end of the rear section of the mounting rod, and third blades are respectively mounted on the six third mounting grooves.
5. The reamer structure for the rocker hole of the cylinder block according to claim 4, wherein: the outer circumferential surface of the rear end of the rear section of the mounting rod is provided with six fourth mounting grooves, and the four fourth mounting grooves are respectively provided with a fourth blade; and the third blade and the fourth blade are arranged in a one-to-one opposite mode in the circumferential direction.
6. The reamer structure for the rocker hole of the cylinder block according to claim 1, wherein: the blade is made of diamond or alloy steel.
7. The reamer structure for the rocker hole of the cylinder block according to claim 1, wherein: a semicircular chip removal port which penetrates through the third blade in the thickness direction is formed in the outer side face of the lower end of the third blade.
8. The reamer structure for the rocker hole of the cylinder block according to claim 1, wherein: the cutter bar further comprises a shaft shoulder section in the middle, and a tool withdrawal groove is formed in the upper end face of the shaft shoulder section.
9. The reamer structure for the rocker hole of the cylinder block according to claim 1, wherein: the outer circumference of the clamping rod is provided with a clamping groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120952487.9U CN214684552U (en) | 2021-05-06 | 2021-05-06 | Reamer structure for cylinder block rocker arm hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120952487.9U CN214684552U (en) | 2021-05-06 | 2021-05-06 | Reamer structure for cylinder block rocker arm hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214684552U true CN214684552U (en) | 2021-11-12 |
Family
ID=78535698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120952487.9U Active CN214684552U (en) | 2021-05-06 | 2021-05-06 | Reamer structure for cylinder block rocker arm hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214684552U (en) |
-
2021
- 2021-05-06 CN CN202120952487.9U patent/CN214684552U/en active Active
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