Compound tool for machining air cooling machine cylinder cover seat ring guide pipe

Abstract

The utility model relates to the technical field of machining, in particular to a compound cutter for machining a guide pipe of a cylinder cover seat ring of an air cooling machine, which comprises a cutter handle, the cutter handle is an HSK100 high-precision thermal shrinkage cutter handle, a reinforcing structure is fixedly mounted on the side wall of the cutter handle 11, and the reinforcing structure comprises a compound reamer. The composite reamer is a tool formed by three-in-one casting of an alloy milling reamer, a seat ring sealing face angle CBN blade and a chamfering blade guided by a guide pipe, a guide mechanism is fixedly installed on the circumferential surface of the cutter handle and comprises a limiting ring, an inclined groove is formed in the surface of the limiting ring, the bottom end of the inclined groove and the composite reamer are located on the same side, and a threaded groove is formed in the circumferential surface of the cutter handle. Due to the fact that the composite reamer is composed of the alloy milling reamer, the seat ring sealing face angle CBN blade and the chamfering blade which are guided by the guide pipe in a three-in-one mode, the strength of the composite reamer is high, the service life of the composite reamer is greatly prolonged, and practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, in particular to a composite tool for processing a guide tube of a cylinder head seat ring of an air-cooled machine. Background Art

[0002] The air-cooled engine single cylinder head is used in air-cooled engines. The product weighs about 6-7Kg. The product body is made of heat-resistant cast aluminum alloy. The valve guide is made of powder metallurgy with a hardness of about HRC60-65. During the processing of the valve seat ring, part of the orifice cone is the valve seat ring, and part is the body aluminum alloy. The lower cone surface of the exhaust valve is 3.5mm wide and the upper cone surface is 4.5mm wide (1.5mm is the valve seat ring, 3mm is the cylinder head body aluminum alloy). The lower cone surface of the intake valve is 3mm wide and the upper cone surface is 4.7mm wide. (1mm is the valve seat ring, 3.7mm is the aluminum alloy of the cylinder head body), the valve guide length is 98mm, the single-side allowance is 0.2mm, the distance from the top plane of the valve seat ring to the valve guide outlet is about 150mm, the seat ring roundness is 0.006mm, the runout tolerance is 0.1mm, the cone surface straightness is 0.02mm, and the guide tube diameter tolerance is H6 level. As a result, it is difficult to control the quality of the tool during the processing, the tool cost remains high, the production efficiency is low, and the tool and cutting tool improvement is urgently needed, and the practicality needs to be improved. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the deficiencies in the prior art, the utility model provides a composite tool for machining a guide tube of a cylinder head seat ring of an air-cooled machine, which solves the technical problem that the prior device is insufficiently practical.

[0005] (II) Technical solution

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] A composite tool for machining a cylinder head seat ring conduit of an air-cooled engine, comprising a tool handle, wherein the tool handle is an HSK100 high-precision heat shrink tool handle, and a reinforcement structure is fixedly installed on the side wall of the tool handle;

[0008] The reinforcement structure comprises a composite reamer, which is a tool formed by casting a conduit-guided alloy milling reamer, a seat ring sealing surface angle CBN blade and a chamfering blade in three parts.

[0009] Preferably: a guiding mechanism is fixedly installed on the circumferential surface of the tool handle, the guiding mechanism includes a limiting ring, a surface of the limiting ring is provided with an inclined groove, the bottom end of the inclined groove is on the same side as the compound reamer, and a threaded groove is provided on the circumferential surface of the tool handle, the threaded groove is located on one side of the high end of the inclined groove.

[0010] Preferably, a flat-topped cone is threadedly mounted on the circumferential surface of the thread groove, and a plurality of torsion guide grooves are formed through the surface of the flat-topped cone.

[0011] Preferably, an assembly structure is arranged on the side wall of the tool handle, and the assembly structure comprises a main shaft, a tool changing unit and a connection point.

[0012] Preferably, the spindle and the tool changing unit are fixedly installed, the tool changing unit is located between the spindle and the tool handle, and a connection is provided on the side wall of the tool changing unit, and the connection is adapted to the tool handle.

[0013] (III) Beneficial effects

[0014] 1. Since the composite reamer is composed of a catheter-guided alloy milling reamer, a seat ring sealing surface angle CBN blade and a chamfering blade, the composite reamer has a high strength, which greatly improves the service life of the composite reamer and improves its practicality.

[0015] Second, by setting up a guiding mechanism, not only can the disassembly of the flat-top cone be completed, facilitating multiple replacements, but also the chips cut by the compound reamer on the workpiece can be guided and removed through the inclined groove and the torsion guide groove, avoiding direct contact between the chips and the tool changing unit and causing damage, thereby improving protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings.

[0017] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0018] Figure 2 It is a three-dimensional exploded structural diagram of the utility model;

[0019] Figure 3 This is an exploded structural diagram of the handle connection of the utility model;

[0020] Figure 4 It is a three-dimensional structural diagram of the limiting ring of the utility model.

[0021] Legend: 11. Tool handle; 12. Compound reamer; 13. Limiting ring; 14. Bevel groove; 15. Thread groove; 16. Flat-top cone; 17. Torsion guide groove; 18. Spindle; 19. Tool changing unit; 21. Connection. DETAILED DESCRIPTION

[0022] The embodiment of the present application provides a composite tool for processing a cylinder head seat duct of an air-cooled engine, which effectively solves the technical problem of insufficient practicality of the existing device.

[0023] Example

[0024] like Figure 1-Figure 4 As shown, the technical solution in the embodiment of the present application effectively solves the technical problem of insufficient practicality of the existing device, and the overall idea is as follows:

[0025] In view of the problems existing in the prior art, the utility model provides a composite tool for processing a cylinder head seat ring duct of an air-cooled engine, comprising a tool handle 11, the tool handle 11 is a HSK100 high-precision heat shrink tool handle, and a reinforcement structure is fixedly installed on the side wall of the tool handle 11;

[0026] The reinforced structure includes a composite reamer 12, which is a tool cast by a conduit-guided alloy milling reamer, a seat ring sealing surface angle CBN blade, and a chamfering blade. Since the composite reamer 12 is composed of a conduit-guided alloy milling reamer, a seat ring sealing surface angle CBN blade, and a chamfering blade, the strength of the composite reamer 12 is high, which greatly improves the service life of the composite reamer 12 and improves practicality.

[0027] A guiding mechanism is fixedly installed on the circumferential surface of the tool handle 11, and the guiding mechanism includes a limit ring 13. An inclined groove 14 is provided on the surface of the limit ring 13. The bottom end of the inclined groove 14 is on the same side as the compound reamer 12. A threaded groove 15 is provided on the circumferential surface of the tool handle 11. The threaded groove 15 is located on one side of the high end of the inclined groove 14. A flat-topped cone 16 is threadedly installed on the circumferential surface of the threaded groove 15. A plurality of torsion guiding grooves 17 are provided through the surface of the flat-topped cone 16. By setting up the guiding mechanism, not only can the disassembly of the flat-topped cone 16 be completed, which is convenient for multiple replacements, but also the chips cut by the compound reamer 12 on the workpiece can be guided and removed through the inclined groove 14 and the torsion guiding groove 17, so as to avoid the chips directly contacting the tool changing unit 19 and causing damage, thereby improving the protectiveness.

[0028] An assembly structure is provided on the side wall of the tool handle 11, and the assembly structure includes a main shaft 18, a tool changing unit 19 and a connection 21. The main shaft 18 and the tool changing unit 19 are fixedly installed, and the tool changing unit 19 is located between the main shaft 18 and the tool handle 11. A connection 21 is provided on the side wall of the tool changing unit 19, and the connection 21 is adapted to the tool handle 11. By setting the assembly structure, the tool handle 11 and the compound reamer 12 can be installed in the tool changing unit 19 to complete the processing of the workpiece.

[0029] Working principle:

[0030] The first step is to first take the flat-topped cone 16 and install the flat-topped cone 16 on the handle 11 through the thread groove 15. Then the staff can install a locking nut on the thread groove 15 to prevent the flat-topped cone 16 from loosening when the handle 11 and the composite reamer 12 rotate at high speed, until the bottom end of the flat-topped cone 16 fits with the high end of the limit ring 13. After the assembly is completed, the handle 11 can be replaced in the connection 21 on the composite reamer 12;

[0031] In the second step, after the tool holder 11 is installed on the compound reamer 12, a micrometer can be used to measure the runout of the tool holder 11 and the compound reamer 12 relative to the spindle 18. The runout requirement is adjusted to 0.003mm. The milling machine controls the speed of the spindle 18 and the tool changing unit 19 at 600r / min, the feed rate at 0.04mm / r, and the tool internal cooling pressure at 0.6MPa. After processing, the roundness and runout are checked. After the adjustment is completed, the tool holder 11 and the compound reamer 12 can be replaced every 300 products.

[0032] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A composite tool for machining a cylinder head seat duct of an air-cooled engine, comprising a tool handle (11), wherein the tool handle (11) is a HSK100 high-precision heat shrink tool handle, characterized in that: A reinforcement structure is fixedly mounted on the side wall of the knife handle (11); The reinforcement structure comprises a composite reamer (12), wherein the composite reamer (12) is a tool formed by casting a conduit-guided alloy milling reamer, a seat ring sealing surface angle CBN blade, and a chamfering blade in three parts; A guide mechanism is fixedly mounted on the circumferential surface of the tool handle (11), the guide mechanism comprising a limit ring (13), a surface of the limit ring (13) is provided with an inclined groove (14), and the bottom end of the inclined groove (14) is on the same side as the composite reamer (12).

2. A composite tool for machining a cylinder head seat duct of an air-cooled engine as claimed in claim 1, characterized in that: The circumferential surface of the knife handle (11) is provided with a thread groove (15).

3. A composite tool for machining a cylinder head seat duct of an air-cooled engine as claimed in claim 2, characterized in that: A flat-topped conical part (16) is threadedly mounted on the circumferential surface of the thread groove (15); Wherein, a plurality of torsion guide grooves (17) are formed through the surface of the flat-top cone (16).

4. A composite tool for machining a cylinder head seat duct of an air-cooled engine as claimed in claim 3, characterized in that: An assembly structure is provided on the side wall of the knife handle (11); Wherein, the assembly structure comprises a main shaft (18), a tool changing unit (19) and a connection point (21).

5. A composite tool for machining a cylinder head seat duct of an air-cooled engine as claimed in claim 4, characterized in that: The spindle (18) and the tool changing unit (19) are fixedly installed; Wherein, the tool changing unit (19) is located between the main shaft (18) and the tool handle (11).

6. A composite tool for machining a cylinder head seat duct of an air-cooled engine as claimed in claim 5, characterized in that: A connection point (21) is provided on the side wall of the tool changing unit (19).

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