Honing rod for deep hole machining

Abstract

The utility model discloses a honing rod for deep hole machining. The honing rod comprises a rod body of a hollow structure. The rod body comprises a connecting section and a honing section; a cooling cavity is formed in the center of the rod body; a guide section is further arranged at the end part of the honing section; a seal head is arranged in the center of the guide section and blocks the end part of the cooling cavity; a plurality of honing strips are evenly distributed on the outer wall of the end of the honing section in the circumferential direction. Water outlet grooves are formed between the adjacent honing strips, and water outlet holes are evenly distributed in the water outlet grooves in the axial direction. When the deep hole machining device is used, a special honing machine and honing oil do not need to be used, cost is low, and the deep hole machining device is suitable for machining deep holes.

Description

Technical Field

[0001] The utility model relates to the field of fine machining, in particular to a honing rod for deep hole machining. Background Art

[0002] Honing is a key method in component processing, primarily used to improve the finish of shaft holes. Currently, honing heads on the market generally require a dedicated honing machine. Therefore, if you simply purchase a common honing head, you'll also need a honing machine and specialized honing oil, which can be quite costly.

[0003] In addition, the honing heads currently on the market are not suitable for processing deep holes, such as those used in marine engines (refer to Figure 1 ) Bolt hole 21 for connecting cylinder block 20 and cylinder head (reference Figure 1 ), the bolt hole 21 is a deep hole with a depth of about 97 mm. Adding the distance from the top of the bolt hole 21 to the top of the cylinder body 20, the overall depth exceeds 140 mm. Common honing heads on the market are not suitable for processing such deep holes. Utility Model Content

[0004] The purpose of the utility model is to provide a honing rod for deep hole processing.

[0005] The innovation of the utility model is that it does not require a special honing machine or honing oil when used, has low cost, and is suitable for processing deep holes.

[0006] In order to achieve the above-mentioned utility model purpose, the technical solution of the utility model is:

[0007] A honing rod for deep hole processing comprises a rod body with a hollow structure; the rod body comprises a connecting section and a honing section; the center of the rod body is a cooling chamber; a guide section is further provided at the end of the honing section; a head is provided at the center of the guide section, the head blocking the end of the cooling chamber; a plurality of honing bars are uniformly distributed along the circumference on the outer wall of the end of the honing section; a water outlet trough is formed between adjacent honing bars, and water outlet holes are uniformly distributed along the axial direction in the water outlet trough; the water outlet holes are connected to the cooling chamber.

[0008] Furthermore, at least three water outlet holes are provided in one of the water outlet troughs.

[0009] Furthermore, the angle between the water outlet channel between the water outlet hole and the cooling cavity and the central axis of the cooling cavity is 30°-60°.

[0010] Furthermore, the length of the connecting section is not less than 88 mm; the length of the honing section is not less than 105 mm; and the length of the honing bar is not less than 40 mm.

[0011] Furthermore, the length ratio of the connecting section to the honing section is 1:1.2-1:1.5.

[0012] The beneficial effects of the utility model are:

[0013] First: The honing rod designed in this application is integrated, and when in use, the connecting section is directly connected to the rotating mechanism of the machining center. The cooling cavity is connected to the cooling structure of the machining center itself, and the cutting fluid is used for cooling. There is no need to purchase a special honing machine and honing oil, and the cost is low.

[0014] Second: The honing stick of this application is spaced apart from the water outlet trough, and a water outlet hole is set in the water outlet trough to ensure timely cooling during honing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the local structure of a marine engine cylinder.

[0016] Figure 2 This is a schematic structural diagram of the utility model.

[0017] Figure 3 This is a cross-sectional view of the utility model.

[0018] In the figure: 10 is the rod body, 11 is the connecting section, 12 is the honing section, 12.1 is the honing stick, 12.2 is the water outlet trough, 12.3 is the water outlet hole, 13 is the cooling chamber, 14 is the guide section, 14.1 is the head, 20 is the cylinder body, and 21 is the bolt hole. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings.

[0020] A honing rod for deep hole machining comprises a hollow rod body 10; the rod body 10 includes a connecting section 11 and a honing section 12; a cooling chamber 13 is formed at the center of the rod body 10; a guide section 14 is provided at the end of the honing section 12; a sealing head 14.1 is provided at the center of the guide section 14, and the sealing head 14.1 blocks the end of the cooling chamber 13; a plurality of honing bars 12.1 are uniformly distributed along the circumference of the outer wall of the end of the honing section 12; water outlet grooves 12.2 are formed between adjacent honing bars 12.1, and water outlet holes 12.3 are uniformly distributed along the axial direction within the water outlet grooves 12.2; the water outlet holes 12.3 are connected to the cooling chamber 13.

[0021] Furthermore, at least three water outlet holes 12.3 are provided in one of the water outlet grooves 12.2.

[0022] Furthermore, the angle between the water outlet channel between the water outlet hole 12.3 and the cooling cavity 13 and the central axis of the cooling cavity 13 is 30°-60°.

[0023] Furthermore, the actual sizes of the connecting section 11 and the honing section 12 can be determined according to the depth of the deep hole to be machined. In this application, the length of the connecting section 11 is not less than 88 mm; the length of the honing section 12 is not less than 105 mm; and the length of the honing bar 12.1 is not less than 40 mm.

[0024] Furthermore, the length ratio of the connecting section 11 to the honing section 12 is 1:1.2-1:1.5.

[0025] During use, the free end of the connecting section 11 is connected to the rotating mechanism of the machining center, and the cooling chamber 13 is connected to the cooling structure of the machining center, and the cutting fluid is used for cooling. The machining center is a prior art technology and is generally equipped in mechanical processing factories. Therefore, for enterprises, using the honing rod of the present application does not require the purchase of a honing machine, thus saving costs.

[0026] The embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

Claims

1. A honing rod for deep hole processing, characterized in that: The invention comprises a rod body (10) with a hollow structure; the rod body (10) comprises a connecting section (11) and a honing section (12); the center of the rod body (10) is a cooling chamber (13); a guide section (14) is further provided at the end of the honing section (12); a head (14.1) is provided at the center of the guide section (14), and the head (14.1) blocks the end of the cooling chamber (13); a plurality of honing bars (12.1) are uniformly distributed along the circumferential direction on the outer wall of the end of the honing section (12); a water outlet groove (12.2) is formed between adjacent honing bars (12.1), and water outlet holes (12.3) are uniformly distributed along the axial direction in the water outlet groove (12.2); and the water outlet holes (12.3) are communicated with the cooling chamber (13).

2. The deep hole machining honing rod according to claim 1, characterized in that: At least three water outlet holes (12.3) are provided in one of the water outlet grooves (12.2).

3. A honing rod for deep hole machining according to claim 1 or 2, characterized in that: The angle between the water outlet channel between the water outlet hole (12.3) and the cooling cavity (13) and the central axis of the cooling cavity (13) is 30°-60°.

4. The deep hole machining honing rod according to claim 1, characterized in that: The length of the connecting section (11) is not less than 88 mm; the length of the honing section (12) is not less than 105 mm; and the length of the honing bar (12.1) is not less than 40 mm.

5. A honing rod for deep hole machining according to claim 1 or 4, characterized in that: The length ratio of the connecting section (11) to the honing section (12) is 1:1.2-1:1.5.

Images