Angle fine adjustment mechanism for finish machining of valve seat ring combined tool

Abstract

The utility model relates to the technical field of cutter machining, in particular to an angle fine adjustment mechanism for a combined cutter for finish machining of a valve seat ring, which comprises a cutter body, a second cutter and a fine adjustment component, a cutting groove is arranged on the cutter body, and the second cutter is arranged in the cutting groove. The fine adjustment assembly is arranged on the cutter body and used for fixing the second cutter, and the fine adjustment mechanism is used for rotating the angle of the second cutter. The angle of the second cutter on the cutter body can be conveniently and accurately rotated, accumulated errors in the machining process are effectively reduced, and the machining precision of the valve seat ring is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of machining, and particularly relates to an angle fine-tuning mechanism for a combined tool for finishing a valve seat ring. Background Technique

[0002] The valve seat ring is a very important part on a gasoline engine, and its precision directly affects the performance of an automotive engine such as output power and fuel consumption. In particular, the matching precision between the valve seat ring and the valve tappet rod directly affects the pressure in the engine cylinder.

[0003] In the process of machining the valve seat ring, the selection and setting of the tool are particularly crucial. At present, in traditional machining methods, a first tool and a second tool are usually arranged on the tool body. Among them, the first tool is coaxially arranged on the tool body and is responsible for the basic cutting work of the valve seat ring. The second tool is arranged on the circumferential side of the tool body and is used for angle machining of the valve seat ring.

[0004] However, in the actual machining process, there is a problem of error accumulation in the cooperation between the second tool, the adapter shank and the machine tool spindle. Due to the existence of these errors, when the second tool machines the valve seat ring, there is a deviation between the actual cutting angle and the theoretical design angle, thereby causing the angle of the valve seat ring to exceed the tolerance. Summary of the Utility Model

[0005] The utility model provides an angle fine-tuning mechanism for a combined tool for finishing a valve seat ring, which is convenient for precisely rotating the angle of the second tool on the tool body, reduces the accumulated errors in the machining process, and improves the machining precision of the valve seat ring.

[0006] By adopting the angle fine-tuning structure, the above error accumulation can be compensated, so as to meet the product machining requirements.

[0007] In order to achieve the above purpose, the technical solution of the utility model is as follows:

[0008] An angle fine-tuning mechanism for a combined tool for finishing a valve seat ring, which comprises a tool body, a second tool and a fine-tuning assembly;

[0009] A cutting groove is formed on the tool body, and the second tool is arranged in the cutting groove;

[0010] The fine-tuning assembly is arranged on the tool body, the fine-tuning assembly is used to fix the second tool, and the fine-tuning mechanism is used to rotate the angle of the second tool.

[0011] Preferably, the fine-tuning assembly includes at least one rotating part and a pressing part;

[0012] The rotating member and the pressing member are both arranged on the tool body. The rotating member abuts against the first side wall of the second tool, the pressing member abuts against the second side wall of the second tool, and the third side wall of the second tool abuts against the side wall of the cutting groove.

[0013] Preferably, the rotating member includes a rotating screw and a rotating head;

[0014] A rotating hole is communicated with the cutting groove, and the rotating screw is threadedly connected with the rotating hole;

[0015] The rotating head is rotatably arranged on the rotating screw, and the rotating head abuts against the first side wall of the second tool.

[0016] Preferably, two rotating members are provided, and the rotating members act on both ends of the second tool respectively.

[0017] Preferably, the pressing member includes a pressing screw;

[0018] A pressing hole is communicated with the cutting groove, and the pressing screw is threadedly connected with the pressing hole;

[0019] The pressing head of the pressing screw fits against the second side wall of the second tool.

[0020] Preferably, two pressing members are provided, and the pressing members act on the second tool respectively.

[0021] Preferably, an adjusting member is further arranged on the tool body, and the adjusting member includes an adjusting screw;

[0022] An adjusting hole is communicated with the cutting groove, and the adjusting screw is threadedly connected with the adjusting hole;

[0023] One end of the adjusting screw extending into the cutting groove is arranged in a fitting manner with the inclined surface of the second tool, and the inclined surface of the second tool is away from the cutting end of the second tool.

[0024] Preferably, the rotating screw, the rotating screw and the adjusting screw are all arranged in counterbores.

[0025] The technical effects and advantages of the present utility model:

[0026] 1. It is convenient to accurately rotate the angle of the second tool on the tool body, effectively reducing the accumulated error in the processing process and improving the processing accuracy of the valve seat ring.

[0027] 2. By providing two pressing members, the stability of the second tool on the tool body can be improved, and further the processing accuracy of the second tool can be improved. Description of the Drawings

[0028] Figure 1 It is a schematic structural diagram of an angle fine-tuning mechanism for a combined tool for precision machining of valve seat rings provided by an embodiment of the present application;

[0029] Figure 2 It is a schematic diagram of another perspective of an angle fine-tuning mechanism for a combined tool for precision machining of valve seat rings provided by an embodiment of the present application;

[0030] Figure 3 It is a schematic structural diagram of a fine-tuning component in an embodiment of the present application;

[0031] Figure 4 It is a cross-sectional view of an angle fine-tuning mechanism for a combined tool for precision machining of valve seat rings provided by an embodiment of the present application;

[0032] Reference numerals in the figure: 1, tool body; 11, cutting groove; 12, rotating hole; 13, tightening hole; 14, adjusting hole; 2, second tool; 3, fine-tuning component; 31, rotating part; 311, rotating screw; 312, rotating head; 32, tightening part; 321, tightening screw; 33, adjusting part; 331, adjusting screw. Detailed implementation manners

[0033] The following embodiments given in conjunction with the drawings further illustrate the present invention in detail.

[0034] See Figure 1 、 Figure 2 and Figure 3 As shown, an angle fine-tuning mechanism for a combined tool for precision machining of valve seat rings includes a tool body 1, a second tool 2, and a fine-tuning component 3.

[0035] A cutting groove 11 is formed in the tool body 1, and the cutting groove 11 can be distributed along the length direction of the tool body 1. The second tool 2 is arranged in the cutting groove 11, and the part of the second tool 2 protruding from the cutting groove 11 is used for cutting the valve seat ring.

[0036] The fine-tuning component 3 is arranged on the tool body 1. The fine-tuning component 3 can be used to fix the second tool 2, and the fine-tuning mechanism can also be used to rotate the angle of the second tool 2.

[0037] See Figure 3 and Figure 4 As shown, the fine-tuning component 3 includes at least one rotating part 31 and a tightening part 32.

[0038] Both the rotating part 31 and the tightening part 32 are arranged on the tool body 1. The rotating part 31 abuts against the first side wall of the second tool 2, the tightening part 32 abuts against the second side wall of the second tool 2, and the third side wall of the second tool 2 abuts against the side wall of the cutting groove 11.

[0039] In this embodiment, by providing a rotating member 31 on the tool body 1, under the action of the pressing member 32, the second tool 2 can be fixed on the tool body 1, and under the action of the rotating member 31, the angle of the second tool 2 on the tool body 1 can be accurately rotated, effectively reducing the accumulated error during the machining process and improving the machining accuracy of the valve seat ring. At the same time, the second tool 2 is detachably fixed on the tool body 1, which is easy to maintain and replace, improving the machining efficiency and service life.

[0040] See Figure 3 and Figure 4 As shown, the rotating member 31 includes a rotating screw 311 and a rotating head 312.

[0041] A rotating hole 12 is communicated with the cutting groove 11, and the rotating screw 311 can be threadedly connected with the rotating hole 12.

[0042] The rotating head 312 is rotatably arranged on the rotating screw 311, and the rotating head 312 abuts against the first side wall of the second tool 2.

[0043] The rotating screw 311 can adopt a thread with a pitch of M4 - 0.7, and an adjustment with an accuracy of 1' can be achieved.

[0044] The material of the rotating head 312 can be set as cemented carbide, and the angle between the cemented carbide and the adjustment surface of the second tool 2 is 45 degrees. The diameter of the rotating head 312 can be set 0.2 mm smaller than the diameter of the rotating hole 12. When the rotating bolt is locked, the rotating screw 311 drives the rotating head 312 to move forward, pushing the second tool 2 to move, realizing fine angle adjustment. And the cooperation between the rotating screw 311 and the second tool 2 belongs to self - adaptive alignment and double - sided fitting, ensuring the machining stability of the second tool 2.

[0045] See Figure 3 and Figure 4 As shown, two rotating members 31 can be provided, and the rotating members 31 act on both ends of the second tool 2 respectively. By providing two rotating members 31 on the tool body 1, the angle size of the second tool 2 can be adjusted as needed. One rotating member 31 can increase the angle of the second tool 2, and the other one can do the opposite, reducing the angle of the second tool 2. In the embodiment of the present application, there is no limitation on the rotating member 31.

[0046] See Figure 3 and Figure 4 As shown, the pressing member 32 can include a pressing screw 321.

[0047] A pressing hole 13 is communicated with the cutting groove 11, the pressing screw 321 can be threadedly connected with the pressing hole 13, and the pressing head of the pressing screw 321 fits against the second side wall of the second tool 2.

[0048] There are two such clamping members 32, and the clamping members 32 act on the second tool 2 respectively. By providing two clamping members 32, the stability of the second tool 2 on the tool body 1 can be improved, thereby improving the machining accuracy of the second tool 2.

[0049] See Figure 3 and Figure 4 As shown, it further includes an adjusting member 33 provided on the tool body 1, and the adjusting member 33 includes an adjusting screw 331.

[0050] An adjusting hole 14 is communicated with the cutting groove 11, and the adjusting screw 331 is threadedly connected to the adjusting hole 14.

[0051] One end of the adjusting screw 331 extending into the cutting groove 11 is arranged in fit with the inclined surface of the second tool 2, and the inclined surface of the second tool 2 is far from the cutting end of the second tool 2.

[0052] See Figure 3 and Figure 4 , the rotating screw 311, the rotating screw 311 and the adjusting screw 331 are all provided with counterbores, and a unified tool can be used to adjust the rotation of the rotating screw 311, the rotating screw 311 and the adjusting screw 331.

[0053] In order to facilitate the understanding of the above technical solutions of the present invention, the working principle or operation method of the present invention in the actual process will be described in detail below.

[0054] Working principle of the present invention:

[0055] During installation, adjust the second tool 2, place the second tool 2 in the cutting groove 11, and according to the machining requirements of the valve seat ring, adjust the rotating screw 311, insert the rotating screw 311 into the rotating hole 12, so that the rotating head 312 fits on the second tool 2. During the rotation of the rotating screw 311, the rotating head 312 is driven to move, so that the second tool 2 moves to a specified angle.

[0056] Adjust the clamping screw 321 in sequence, insert the clamping screw 321 into the clamping hole 13 and rotate it. Under the action of the cutting groove 11 and the rotating head 312, the second tool 2 is fixed on the tool body 1 to complete the installation.

[0057] The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the creative concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. An angle fine-tuning mechanism for a combined tool for finishing a valve seat ring, characterized in that: It comprises a cutter body (1), a second cutter (2) and a fine adjustment component (3); The cutter body (1) is provided with a cutting groove (11), and the second cutter (2) is arranged in the cutting groove (11); The fine-adjustment component (3) is arranged on the knife body (1), the fine-adjustment component (3) is used to fix the second knife (2), and the fine-adjustment mechanism is used to rotate the angle of the second knife (2).

2. The angle fine-tuning mechanism of the combined tool for finishing valve seat ring according to claim 1, characterized in that: The fine-tuning assembly (3) comprises at least one rotating member (31) and a fastening member (32); The rotating member (31) and the abutting member (32) are both arranged on the tool body (1); the rotating member (31) abuts against a first side wall of the second tool (2); the abutting member (32) abuts against a second side wall of the second tool (2); and the third side wall of the second tool (2) abuts against a side wall of the cutting groove (11).

3. The angle fine-tuning mechanism of the combined tool for finishing valve seat ring according to claim 2, characterized in that: The rotating member (31) comprises a rotating screw (311) and a rotating head (312); A rotating hole (12) is provided in communication with the cutting groove (11), and the rotating screw (311) is threadedly connected to the rotating hole (12); The rotating head (312) is rotatably disposed on the rotating screw (311), and the rotating head (312) abuts against the first side wall of the second tool (2).

4. The angle fine-tuning mechanism of the combined tool for finishing valve seat ring according to claim 2, characterized in that: Two rotating members (31) are provided, and the rotating members (31) act on two ends of the second tool (2) respectively.

5. The angle fine-tuning mechanism of the combined tool for finishing valve seat ring according to claim 2, characterized in that: The abutting member (32) comprises a abutting screw (321); A tightening hole (13) is provided in communication with the cutting groove (11), and the tightening screw (321) is threadedly connected to the tightening hole (13); The abutment head of the abutment screw (321) is in contact with the second side wall of the second tool (2).

6. The angle fine-tuning mechanism for the combined tool for finishing valve seat ring according to claim 5, characterized in that: Two abutting members (32) are provided, and the abutting members (32) act on the second cutting tool (2) respectively.

7. The angle fine-tuning mechanism of the combined tool for finishing valve seat ring according to claim 3, characterized in that: It also includes an adjusting member (33) arranged on the knife body (1), wherein the adjusting member (33) includes an adjusting screw (331); An adjustment hole (14) is provided in communication with the cutting groove (11), and the adjustment screw (331) is threadedly connected to the adjustment hole (14); One end of the adjusting screw (331) extending into the cutting groove (11) is arranged to fit the inclined surface of the second tool (2), and the inclined surface of the second tool (2) is away from the cutting end of the second tool (2).

8. The angle fine-tuning mechanism of the combined tool for finishing valve seat ring according to claim 7, characterized in that: The rotating screw (311), the rotating screw (311) and the adjusting screw (331) are all counterbored.

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