Large-cylinder-diameter cylinder sleeve end face deep groove machining device

Abstract

The utility model belongs to the technical field of cylinder sleeve machining, and relates to a large-cylinder-diameter cylinder sleeve end face deep groove machining device which comprises a cutter holder, a cutter handle is arranged at one end of the cutter holder, a cutter head fixing seat is arranged at the other end of the cutter holder, an elastic gap is transversely formed in the end, away from the cutter handle, of the cutter head fixing seat, and an upper pressing block is arranged on the upper portion of the elastic gap. The middle of the upper pressing block is in threaded connection with a countersunk bolt, an arc face matched with a deep groove in the end face of the large-cylinder-diameter cylinder sleeve is arranged at the end, away from the cutter handle, of the cutter head fixing base, the front end of the arc face protrudes out of the front side of the body to form an arc-shaped guide plate, and a cutter clamping groove communicated with the elastic gap is formed in the front end of the arc face. The side, away from the cutter clamping groove, of the elastic gap is provided with an arc neck connected with the upper pressing block and the body, and an anti-locking piece used for preventing the cutter head from being locked is arranged in the portion, at the rear end of the arc face, of the elastic gap. The end face deep hole machining device is simple in structure and wide in application range, and the end face deep hole of the large-cylinder-diameter cylinder sleeve can be rapidly machined on a numerical control machine tool.

Description

Technical Field

[0001] This utility model belongs to the field of cylinder liner processing technology, specifically, it relates to a deep groove processing device for the end face of a large-diameter cylinder liner. Background Technology

[0002] Cylinder liners used in ship engines, generator sets, and locomotive engines typically have a large cylinder diameter, and are simply referred to as large-bore cylinder liners. Figure 1 The large-diameter cylinder liner shown has a circular cylindrical deep groove on its top surface. The width and depth of the cylindrical deep groove are marked. During production, the deep groove on the end face needs to be machined quickly on a CNC machine tool.

[0003] However, when machining this cylindrical deep groove on a CNC machine tool by rotating the spindle, ordinary tool holders cannot properly avoid the deep hole on the end face, which will lead to machining interference. Therefore, a simple and reasonable structural design for machining deep grooves on the end face of large-diameter cylinder liners was developed to enable the rapid machining of deep grooves on the end face of large-diameter cylinder liners on CNC machine tools. Utility Model Content

[0004] The purpose of this invention is to provide a deep groove machining device for the end face of a large-diameter cylinder liner, so that the deep groove on the end face of a large-diameter cylinder liner can be quickly machined on a CNC machine tool.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A deep groove machining device for the end face of a large-diameter cylinder liner includes a tool holder. One end of the tool holder has a tool shank, and the other end has a tool head fixing seat. An elastic slot is laterally formed at the end of the tool head fixing seat away from the tool shank. The upper part of the elastic slot is an upper pressure block, and the lower part is a body. A countersunk bolt is threadedly connected to the middle of the upper pressure block. The body has a corresponding bolt hole matching the countersunk bolt. The countersunk bolt passes through the elastic slot and is threaded into the bolt hole. The end of the tool head fixing seat away from the tool shank has a groove corresponding to the end face of the large-diameter cylinder liner. The deep groove has a matching arc surface, and the front end of the arc surface protrudes from the front side of the body to form an arc-shaped guide plate. The front end of the arc surface is provided with a clamping groove that communicates with the elastic gap. The clamping groove matches the cutter head to be clamped, and the end of the clamping groove away from the arc-shaped guide plate is provided with a blade clearance hole. The side of the elastic gap away from the clamping groove is provided with an arc-shaped neck that connects the upper pressure block and the body. The diameter of the arc-shaped neck is larger than the gap height of the elastic gap. The elastic gap at the rear end of the arc surface is provided with an anti-jamming component to prevent the cutter head from jamming.

[0007] Preferably, the anti-locking piece is a cylindrical pin arranged axially parallel to the tool shank, the top of the body is provided with a plug slot matched with the cylindrical pin, and the top end of the plug slot is provided with a through opening communicated with the elastic gap, the arc length of the through opening is 1 / 4-1 / 3 of the circumference of the end face of the cylindrical pin, the cylindrical pin is embedded and welded in the plug slot, and the top of the cylindrical pin protrudes into the elastic gap through the through opening.

[0008] Preferably, the anti-locking piece is a cylindrical pin arranged axially parallel to the tool shank, the top of the body is provided with a plug slot matched with the cylindrical pin, and the top end of the plug slot is provided with a through opening communicated with the elastic gap, the arc length of the through opening is 1 / 4-1 / 3 of the circumference of the end face of the cylindrical pin, the cylindrical pin is embedded and welded in the plug slot, and the top of the cylindrical pin protrudes into the elastic gap through the through opening.

[0009] Preferably, the tool edge avoiding hole comprises an upper concave hole arranged on the upper pressing block and a lower concave hole arranged on the body.

[0010] Preferably, the upper and lower groove walls of the tool clamping groove are correspondingly provided with convex ribs, and the opposite surfaces of the two convex ribs are matched with the tool bit to be clamped in the tool clamping groove.

[0011] The working principle of the utility model is that when in use, the tool shank is fixed on the tool tower of the numerical control machine tool; the diameter and width of the arc surface are designed according to the parameters of the end face deep groove of the large-bore cylinder sleeve (the diameter of the arc surface is similar to the diameter of the center of the cylindrical surface of the end face deep groove of the large-bore cylinder sleeve, and the width of the arc surface is smaller than the width of the end face deep groove of the large-bore cylinder sleeve), so that the end face deep groove of the large-bore cylinder sleeve can be perfectly machined, and interference will not occur during the machining process; the tool bit customized according to the width and depth of the cylindrical deep groove can be installed in the tool clamping groove; by arranging the anti-locking piece, the rear end of the upper pressing block can be supported when the tool bit is installed and pressed, so that the tool bit is not easily locked and difficult to be installed and removed due to over-tightening, and the counter-bore bolt is arranged to press the tool bit.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. The structure design is simple and reasonable, and the end face deep hole of the large-bore cylinder sleeve can be quickly machined on the numerical control machine tool.

[0014] 2. The device has wide application range, can be actually customized according to the changes of the position, width, depth and other parameters of the end face deep hole of the large-bore cylinder sleeve, and can be popularized and applied to all large-bore cylinder sleeves with similar structures. DRAWINGS

[0015] The utility model is further described below in combination with the drawings and embodiments.

[0016] Figure 1 It is a structural schematic view of the large-bore cylinder sleeve in the background art.

[0017] Figure 2is a three-dimensional structure schematic view of the utility model in embodiment 1.

[0018] Figure 3 is another three-dimensional structure schematic view of the utility model in embodiment 1 from another perspective.

[0019] Figure 4 is a three-dimensional structure schematic view of the utility model in embodiment 2.

[0020] In the figure: 1-shaft, 2-elastic slit, 3-upper pressing block, 4-body, 5-countersunk bolt, 6-circular arc surface, 7-arc-shaped guide plate, 8-clamping tool slot, 9-tool edge avoiding hole, 10-circular arc neck, 11-cylindrical pin, 12-circular arc protrusion. DETAILED DESCRIPTION

[0021] The utility model will be clearly described below in combination with the drawings in the embodiments of the utility model and specific embodiments, and the description herein is only used to explain the utility model, but not as the limitation to the utility model. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor, any modification, equivalent replacement, improvement, etc. made, should be included in the protection scope of the utility model.

[0022] Embodiment 1

[0023] As Figures 2-3 shown, the utility model provides a big cylinder diameter cylinder liner end face deep groove processing device, including tool holder, the one end of tool holder is equipped with the shaft 1, the other end is equipped with the tool bit fixed base, the one end of tool bit fixed base is away from the transversely opened elastic slit 2 of shaft, the upper part of elastic slit is upper pressing block 3, and the lower part is body 4, and the middle part of upper pressing block is connected with countersunk bolt 5, the body is equipped with the bolt hole matched with countersunk bolt on the corresponding, and the countersunk bolt is connected with bolt hole by screw thread through elastic slit, the one end of tool bit fixed base is equipped with the circular arc surface 6 matched with big cylinder diameter cylinder liner end face deep groove away from shaft, and the front end of circular arc surface protrudes from the front side of body and forms arc-shaped guide plate 7, the front end of circular arc surface is equipped with the clamping tool slot 8 through elastic slit, the clamping tool slot is matched with the tool bit (not shown in the figure) to be clamped, and the one end of clamping tool slot is equipped with tool edge avoiding hole 9 away from arc-shaped guide plate, the one side of elastic slit is equipped with the circular arc neck 10 of connecting upper pressing block and body away from clamping tool slot, the diameter of circular arc neck is greater than the slit height of elastic slit, and the elastic slit in the rear end of circular arc surface is equipped with anti-jamming part for avoiding tool bit jamming.

[0024] In this embodiment, the anti-jamming component is a cylindrical pin 11 arranged parallel to the axial direction of the tool holder. The top of the body is provided with a pin groove that matches the cylindrical pin, and the top of the pin groove is provided with a through-hole that communicates with the elastic gap. The arc length of the through-hole is 1 / 4 of the circumference of the end face of the cylindrical pin. The cylindrical pin is embedded and welded in the pin groove, and the top of the cylindrical pin protrudes through the through-hole into the elastic gap.

[0025] Specifically, the blade clearance hole includes an upper recessed hole on the upper pressure block and a lower recessed hole on the body, to prevent damage to the blade tip when clamping the blade tip. The upper and lower walls of the clamping groove are respectively provided with protruding ribs 12, and the opposing surfaces of the two protruding ribs are matched with the blade tip to be clamped in the clamping groove for clamping the blade tip.

[0026] Example 2

[0027] like Figure 4 As shown, the difference between this embodiment and embodiment 1 is only that: the anti-jamming component is an arc-shaped protrusion 13 arranged parallel to the axial direction of the tool holder, the arc-shaped protrusion is integrally arranged on the top of the body, and the height of the arc-shaped protrusion is 3 / 4 of the gap height H of the elastic gap.

[0028] The working principle of this utility model is as follows: During use, the tool holder is fixed to the turret of the CNC machine tool; the diameter and width of the arc surface are designed according to the parameters of the deep groove on the end face of the large-diameter cylinder liner (the diameter of the arc surface is close to the center of the cylindrical diameter of the deep groove on the end face of the large-diameter cylinder liner, and the width of the arc surface is smaller than the width of the deep groove on the end face of the large-diameter cylinder liner), thus perfectly machining the deep groove on the end face of the large-diameter cylinder liner without interference during machining; a customized tool head can be installed in the tool holder groove according to the width and depth of the cylindrical deep groove; by setting an anti-jamming component, when the tool head is installed and pressed, the rear end of the upper pressure block can be supported, thereby avoiding excessive pressing that could cause the tool head to jam and become difficult to install and remove; countersunk bolts are used to tighten the tool head.

[0029] Furthermore, it is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A large-bore cylinder liner end face deep groove processing device, comprising a tool holder, one end of the tool holder is provided with a tool holder, the other end is provided with a tool head fixing seat, the end away from the tool holder of the tool head fixing seat is transversely provided with an elastic gap, the upper part of the elastic gap is an upper pressing block, the lower part is a body, the middle part of the upper pressing block is threadedly connected with a countersunk bolt, the body is correspondingly provided with a bolt hole matched with the countersunk bolt, and the countersunk bolt is threadedly connected with the bolt hole through the elastic gap, characterized in that: The end of the tool head fixing seat away from the shank is provided with a circular arc surface matched with the deep groove of the large cylinder bore cylinder sleeve end face, and the front end of the circular arc surface protrudes from the front side of the body to form an arc guide plate, the front end of the circular arc surface is provided with a tool clamping groove penetrating the elastic gap, the tool clamping groove is matched with the tool head to be clamped, and the end of the tool clamping groove away from the arc guide plate is provided with a blade avoiding hole, the side of the elastic gap away from the tool clamping groove is provided with a circular arc neck connecting the upper pressing block and the body, the diameter of the circular arc neck is greater than the gap height of the elastic gap, and the elastic gap at the rear end of the circular arc surface is provided with an anti-jamming piece for avoiding tool head jamming. ​ 2. The large-bore cylinder liner end face deep groove processing device according to claim 1, characterized in that: The anti-jamming piece is a cylindrical pin arranged axially parallel to the shank, the top of the body is provided with a plug slot matched with the cylindrical pin, and the top end of the plug slot is provided with a through hole penetrating the elastic gap, the arc length of the through hole is 1 / 4-1 / 3 of the circumference of the end face of the cylindrical pin, the cylindrical pin is embedded and welded in the plug slot, and the top of the cylindrical pin protrudes in the elastic gap through the through hole.

3. The large-bore cylinder liner end face deep groove processing device according to claim 1, characterized in that: The anti-jamming piece is an arc-shaped protrusion arranged axially parallel to the shank, the arc-shaped protrusion is integrally arranged on the top of the body, and the height of the arc-shaped protrusion is 1 / 2-3 / 4 of the gap height of the elastic gap.

4. The large-bore cylinder liner end face deep groove processing device according to claim 2, characterized in that: The blade avoiding hole includes an upper concave hole on the upper pressing block and a lower concave hole on the body.

5. The large-bore cylinder liner end face deep groove processing device according to any one of claims 1-4, characterized in that: Corresponding convex edges are arranged on the upper and lower groove walls of the tool clamping groove, and the opposite surfaces of the two convex edges are matched with the tool head to be clamped in the tool clamping groove.

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