A grinding wheel dressing wheel for processing tooth shape

Abstract

The present invention relates to a grinding wheel dressing wheel for processing tooth profile, comprising an outer wheel body and a plurality of annular gear teeth equidistantly arranged on the outer circular wall of the outer wheel body, wherein an inner circular hole of the outer wheel body is detachably connected with an axle adapting mechanism, and the axle adapting mechanism is used to adapt to axles of different diameters; the pitch between the plurality of annular gear teeth is 8±0.01mm, the tooth depth of the annular gear teeth is 2.96±0.03mm, and the root circle diameter of the annular gear teeth is 1.25±0.03mm; the axle adapting mechanism comprises a first inner wheel ring detachably connected in the circular hole of the outer wheel body, a second inner wheel ring detachably connected in the inner circular hole of the first inner wheel ring, and a third inner wheel ring detachably connected in the inner circular hole of the second inner wheel ring. The grinding wheel dressing wheel for processing tooth profile can perform high-precision dressing on the grinding wheel for processing tooth profile, so that the fitting degree of high-requirement tooth profile connecting rod reaches more than 90%, and the tolerance and smoothness of the processed tooth profile reach high precision. At the same time, it can also be applied to axles of different diameters, and has a wide range of applications.

Description

Technical Field

[0001] The invention belongs to the technical field of processing parts of marine diesel engines, and in particular relates to a grinding wheel dressing wheel for processing tooth profiles. Background Art

[0002] The strong grinding of connecting rod tooth profile refers to using a forming grinding wheel to process the flat surface into tooth profile on the joint surface of the connecting rod body and the connecting rod cover. This process is highly efficient and has good tooth finish.

[0003] During the tooth processing, the connecting rod material is 42CrMo alloy steel with a hardness of 300HB. The tooth shape adopts 90-degree positioning connection, the pitch is 8±0.01mm, the tooth depth is 2.4±0.05mm, and the tooth root is R1.25±0.05mm. Since the grinding wheel has high requirements for grinding this tooth shape, the retention of the grinding wheel particles decreases after each grinding of the connecting rod surface. Therefore, after each grinding of the connecting rod, the grinding wheel must be ground and trimmed on the diamond dressing wheel before grinding the connecting rod. Therefore, designing a dressing wheel that meets the requirements is the key to ensuring the connecting rod tooth shape. Summary of the invention

[0004] The purpose of the present invention is to provide a grinding wheel dressing wheel with simple structure and reasonable design for processing tooth shape in order to solve the above problems.

[0005] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0006] A grinding wheel dressing wheel for processing tooth shape comprises an outer wheel body and a plurality of annular gear teeth equidistantly arranged on the outer circular wall of the outer wheel body; an axle adapter mechanism is detachably connected to the inner circular hole of the outer wheel body, and the axle adapter mechanism is used to adapt to axles of different diameters.

[0007] As a further optimization scheme of the present invention, the pitch between the plurality of annular gear teeth is 8±0.01 mm, the tooth depth of the annular gear teeth is 2.96±0.03 mm, the root circle diameter of the annular gear teeth is 1.25±0.03 mm, and the number of the annular gear teeth is 8.

[0008] As a further optimization scheme of the present invention, the wheel axle adaptation mechanism includes a first inner wheel ring detachably connected to the inner circular hole of the outer wheel body, a second inner wheel ring detachably connected to the inner circular hole of the first inner wheel ring, and a third inner wheel ring detachably connected to the inner circular hole of the second inner wheel ring.

[0009] As a further optimization scheme of the present invention, a plurality of second inner limit keys are symmetrically connected to the inner circular hole wall of the first inner ring, and a plurality of first outer limit grooves are symmetrically opened on the outer circular wall of the first inner ring, and a plurality of first inner limit keys matching with the first outer limit grooves are symmetrically connected to the inner circular hole wall of the outer wheel body.

[0010] As a further optimization scheme of the present invention, a plurality of third inner limit keys are symmetrically connected to the inner circular hole wall of the second inner ring, and a plurality of second outer limit grooves matching with the second inner limit keys are symmetrically opened on the outer circular wall of the second inner ring.

[0011] As a further optimization scheme of the present invention, a plurality of fourth inner limit keys are symmetrically connected to the inner circular hole wall of the third inner ring, and a plurality of third outer limit grooves matching with the third inner limit keys are symmetrically opened on the outer circular wall of the third inner ring.

[0012] As a further optimization scheme of the present invention, a pre-limiting mechanism is provided between the outer wheel body and the first inner ring, between the first inner ring and the second inner ring, and between the second inner ring and the third inner ring. The pre-limiting mechanism is used to prevent axial movement between the outer wheel body and the first inner ring, between the first inner ring and the second inner ring, and between the second inner ring and the third inner ring.

[0013] As a further optimization solution of the present invention, the pre-limiting mechanism is respectively connected to the outer wall of the first inner limit key, the second inner limit key, the third inner limit key and the fourth inner limit key close to the center of the circle;

[0014] The pre-limiting mechanism includes a connecting key plate, a covering sleeve connected to a side wall of the connecting key plate, an adaptive adjustment chamber formed between the connecting key plate and the covering sleeve, a first fixed hinge connected to the middle position of the connecting key plate, a second fixed hinge hinged on the first fixed hinge, an attachment plate connected to one end of the second fixed hinge, and a spring connected between the attachment plate and the connecting key plate, wherein the attachment plate is connected to the inner wall of the covering sleeve, and the spring is connected at a position close to one end of the connecting key plate.

[0015] The beneficial effects of the present invention are:

[0016] 1) The diamond dressing wheel of the present invention is provided with eight annular gear teeth, the pitch between the annular gear teeth is 8±0.01mm, the tooth depth is 2.96±0.03mm, and the root diameter is 1.25±0.03mm. The grinding wheel for processing tooth profile can be processed with high precision, so that the fitting degree of the high-requirement tooth profile connecting rod reaches more than 90%, and the tolerance and finish of the processed tooth profile meet the high-precision requirements of the design drawings;

[0017] 2) The present invention is applicable to axles of different diameters. Different manufacturers can make adaptive adjustments according to the actual axles of motors when using the present invention. There is no need to design diamond dressing wheels of different sizes, and the application range is wide.

[0018] 3) The present invention adds a pre-limiting mechanism between the limit key and the limit groove. When the inner limit key is inserted into the outer limit groove, one end of the connecting key plate connected to the spring is inserted into the outer limit groove along with the inner limit key. During the movement, the tilted end of the attachment plate gradually contacts the inner wall of the outer limit groove and is gradually squeezed until the attachment plate and the inner wall of the outer limit groove are in contact with each other. At this time, the spring is in a stretched state and continuously applies a certain pulling force to the attachment plate. The originally tilted end of the attachment plate is subjected to the pulling force and exerts pressure on the inner wall of the outer limit groove. Combined with the friction coefficient of the covering sleeve, the inner limit key can be limited after being inserted into the outer limit groove. Without the influence of external force, there will be no axial separation between the inner rings, so that a better pre-limiting effect can be achieved.

[0019] 4) The present invention has a simple structure, high stability, reasonable design and is easy to implement. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 is a cross-sectional view of the outer wheel body of the present invention;

[0022] Figure 3 is a cross-sectional view of the first inner ring of the present invention;

[0023] Figure 4 is a cross-sectional view of the second inner ring of the present invention;

[0024] Figure 5 is a cross-sectional view of the third inner ring of the present invention;

[0025] Figure 6 It is a structural schematic diagram of the pre-limiting mechanism in the present invention.

[0026] In the figure: 1. outer wheel body; 101. annular gear teeth; 102. first inner limit key; 2. first inner wheel ring; 201. first outer limit groove; 202. second inner limit key; 3. second inner wheel ring; 301. second outer limit groove; 302. third inner limit key; 4. third inner wheel ring; 401. third outer limit groove; 402. fourth inner limit key; 501. connecting key plate; 502. covering sleeve; 5020. adaptive adjustment chamber; 503. first fixed hinge; 504. second fixed hinge; 505. attachment plate; 506. spring. DETAILED DESCRIPTION

[0027] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0028] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention; in the description of the present invention, unless otherwise specified, "multiple" and "several" mean two or more.

[0029] Example 1

[0030] like Figure 1-5 As shown, a grinding wheel dressing wheel for processing tooth shape includes an outer wheel body 1 and a plurality of annular gear teeth 101 equidistantly arranged on the outer circular wall of the outer wheel body 1, and a wheel axle adapter mechanism is detachably connected to the inner circular hole of the outer wheel body 1, and the wheel axle adapter mechanism is used to adapt to wheel axles of different diameters.

[0031] The pitch between the plurality of annular gear teeth 101 is 8±0.01 mm, the tooth depth of the annular gear teeth 101 is 2.96±0.03 mm, the root circle diameter of the annular gear teeth 101 is 1.25±0.03 mm, and the number of the annular gear teeth 101 is 8.

[0032] When the grinding wheel for grinding the connecting rod needs to be dressed, the grinding wheel is ground and dressed through the annular gear teeth 101 on the outer wheel body 1, and the grinding wheel for processing the tooth shape can be dressed with high precision, so that the fitting degree of the high-requirement tooth shape connecting rod reaches more than 90%, and the tolerance and smoothness of the processed tooth shape meet the high-precision requirements of the design drawings.

[0033] Among them Figure 2-5 As shown, the axle adapter mechanism includes a first inner wheel ring 2 detachably connected to the inner circular hole of the outer wheel body 1, a second inner wheel ring 3 detachably connected to the inner circular hole of the first inner wheel ring 2, and a third inner wheel ring 4 detachably connected to the inner circular hole of the second inner wheel ring 3.

[0034] A plurality of second inner limit keys 202 are symmetrically connected to the inner circular hole wall of the first inner ring 2, and a plurality of first outer limit grooves 201 are symmetrically opened on the outer circular wall of the first inner ring 2, and a plurality of first inner limit keys 102 matching with the first outer limit grooves 201 are symmetrically connected to the inner circular hole wall of the outer wheel body 1.

[0035] A plurality of third inner limit keys 302 are symmetrically connected to the inner circular hole wall of the second inner ring 3 , and a plurality of second outer limit grooves 301 matching with the second inner limit keys 202 are symmetrically opened on the outer circular wall of the second inner ring 3 .

[0036] A plurality of fourth inner limit keys 402 are symmetrically connected to the inner circular hole wall of the third inner ring 4 , and a plurality of third outer limit grooves 401 matching with the third inner limit keys 302 are symmetrically opened on the outer circular wall of the third inner ring 4 .

[0037] It should be noted that the wheel axle should also be provided with a limit groove that cooperates with the first inner limit key 102 or the second inner limit key 202 or the third inner limit key 302 or the fourth inner limit key 402, and is adjusted according to the diameter of different wheel axles. When directly adapting to the outer wheel body 1, the first inner wheel ring 2, the second inner wheel ring 3 and the third inner wheel ring 4 are removed, and the wheel axle is directly inserted into the inner circular hole of the outer wheel body 1 and cooperates with the first inner limit key 102. According to the same principle, when adapting to the first inner wheel ring 2, the second inner wheel ring 3 and the third inner wheel ring 4 are removed, and so on. It can be adaptively adjusted according to the diameter of the wheel axle equipped during actual production, and there is no need to design additional dressing wheels of different sizes, thereby reducing the investment in manufacturing costs.

[0038] Pre-limiting mechanisms are provided between the outer wheel body 1 and the first inner ring 2, between the first inner ring 2 and the second inner ring 3, and between the second inner ring 3 and the third inner ring 4. The pre-limiting mechanisms are used to prevent axial movement between the outer wheel body 1 and the first inner ring 2, between the first inner ring 2 and the second inner ring 3, and between the second inner ring 3 and the third inner ring 4.

[0039] The pre-limiting mechanisms are respectively connected to the outer walls of the first inner limit key 102, the second inner limit key 202, the third inner limit key 302 and the fourth inner limit key 402 close to the center of the circle;

[0040] like Figure 6 As shown, the pre-limiting mechanism includes a connecting key plate 501, a covering sleeve 502 connected to a side wall of the connecting key plate 501, an adaptive adjustment chamber 5020 formed between the connecting key plate 501 and the covering sleeve 502, a first fixed hinge 503 connected to the middle position of the connecting key plate 501, a second fixed hinge 504 hinged on the first fixed hinge 503, an attachment plate 505 connected to one end of the second fixed hinge 504, and a spring 506 connected between the attachment plate 505 and the connecting key plate 501, the attachment plate 505 is connected to the inner wall of the covering sleeve 502, and the spring 506 is connected to a position close to one end of the connecting key plate 501. The covering sleeve 502 can be made of a material with a large friction coefficient, such as plastic, damping material, etc., and the surface of the covering sleeve 502 can also be roughened to achieve the effect of increasing friction.

[0041] When the inner limit key is inserted into the outer limit groove, one end of the connecting key plate 501 connected to the spring 506 is inserted into the outer limit groove along with the inner limit key. During the movement, the raised end of the attachment plate 505 gradually contacts the inner wall of the outer limit groove and is gradually squeezed until the attachment plate 505 and the inner wall of the outer limit groove are attached and contacted. At this time, the spring 506 is in a stretched state and continuously applies a certain pulling force to the attachment plate 505. The originally raised end of the attachment plate 505 is subjected to the pulling force, and pressure is applied to the inner wall of the outer limit groove. Combined with the friction coefficient of the covering sleeve 502, a large friction force is generated between the originally raised end of the attachment plate 505 and the exit of the outer limit groove, so that the inner limit key can be limited after being inserted into the outer limit groove. Without being affected by the external force, there will be no axial separation between the inner rings, so that a better pre-limiting effect can be achieved.

[0042] After the axle is inserted into the wheel body, other auxiliary limiting parts are required to axially limit the wheel body. This is a prior art and can be matched and assembled according to the diameter of the axle, which will not be described in detail here.

[0043] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A grinding wheel dressing wheel for processing tooth profile, characterized in that: It comprises an outer wheel body (1) and a plurality of annular gear teeth (101) equidistantly arranged on the outer circular wall of the outer wheel body (1); an axle adapting mechanism is detachably connected to the inner circular hole of the outer wheel body (1), and the axle adapting mechanism is used to adapt to axles of different diameters; The wheel axle adapting mechanism comprises a first inner wheel ring (2) detachably connected to the inner circular hole of the outer wheel body (1), a second inner wheel ring (3) detachably connected to the inner circular hole of the first inner wheel ring (2), and a third inner wheel ring (4) detachably connected to the inner circular hole of the second inner wheel ring (3); A plurality of second inner limit keys (202) are symmetrically connected to the inner circular hole wall of the first inner ring (2), a plurality of first outer limit grooves (201) are symmetrically opened on the outer circular wall of the first inner ring (2), and a plurality of first inner limit keys (102) matching with the first outer limit grooves (201) are symmetrically connected to the inner circular hole wall of the outer wheel body (1); A plurality of third inner limit keys (302) are symmetrically connected to the inner circular hole wall of the second inner ring (3), and a plurality of second outer limit grooves (301) matching with the second inner limit keys (202) are symmetrically opened on the outer circular wall of the second inner ring (3); A plurality of fourth inner limit keys (402) are symmetrically connected to the inner circular hole wall of the third inner ring (4), and a plurality of third outer limit grooves (401) matching with the third inner limit keys (302) are symmetrically opened on the outer circular wall of the third inner ring (4); The wheel axle is provided with a limit groove that matches with the first inner limit key (102) or the second inner limit key (202) or the third inner limit key (302) or the fourth inner limit key (402). The limit groove is adjusted according to the diameter of different wheel axles. When directly adapting to the outer wheel body (1), the first inner wheel ring (2), the second inner wheel ring (3) and the third inner wheel ring (4) are removed, and the wheel axle is directly inserted into the inner circular hole of the outer wheel body (1) and matched with the first inner limit key (102). According to the same principle, when adapting to the first inner wheel ring (2), the second inner wheel ring (3) and the third inner wheel ring (4) are removed, and so on. The adjustment is adaptively performed according to the diameter of the wheel axle equipped during actual production. Pre-limiting mechanisms are provided between the outer wheel body (1) and the first inner wheel ring (2), between the first inner wheel ring (2) and the second inner wheel ring (3), and between the second inner wheel ring (3) and the third inner wheel ring (4), and the pre-limiting mechanisms are used to prevent axial movement between the outer wheel body (1) and the first inner wheel ring (2), between the first inner wheel ring (2) and the second inner wheel ring (3), and between the second inner wheel ring (3) and the third inner wheel ring (4); The pre-limiting mechanisms are respectively connected to the outer walls of the first inner limit key (102), the second inner limit key (202), the third inner limit key (302) and the fourth inner limit key (402) close to the center of the circle; The pre-limiting mechanism comprises a connecting key plate (501), a covering sleeve (502) connected to a side wall of the connecting key plate (501), an adaptive adjustment chamber (5020) formed between the connecting key plate (501) and the covering sleeve (502), a first fixed hinge (503) connected to the middle position of the connecting key plate (501), a second fixed hinge (504) hinged on the first fixed hinge (503), an attachment plate (505) connected to one end of the second fixed hinge (504), and a spring (506) connected between the attachment plate (505) and the connecting key plate (501), wherein the attachment plate (505) is connected to the inner wall of the covering sleeve (502), and the spring (506) is connected at a position close to one end of the connecting key plate (501).

2. A grinding wheel dressing wheel for machining tooth profile according to claim 1, characterized in that: The tooth pitch between the plurality of annular gear teeth (101) is 8±0.01 mm, the tooth depth of the annular gear teeth (101) is 2.96±0.03 mm, the root circle diameter of the annular gear teeth (101) is 1.25±0.03 mm, and the number of the annular gear teeth (101) is 8.

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