A special cutter for processing O-ring groove by boring and milling machine

Abstract

The utility model discloses a special tool for boring and milling machine processing O type ring groove relates to the related technical field of machining, the utility model discloses a base and tool bar, the upper end of base swingly provided with tool bar, and one end of tool bar upper surface is fixed with arc convex, and one end of arc convex is provided with four square blade, the bottom fixed connection of tool bar has adjusting part, and the upper end center of base is provided with the adjusting groove of strip shape, and adjusting part is slidably arranged in adjusting groove, and the base of adjusting groove both ends is externally through -type screw -jointed with adjusting bolt, the upper end embedded fixed with scale of base, and scale is located the one end of tool bar away from four square blade, the utility model discloses setting base and tool bar, solved the problem that ordinary tool is not applicable in some space limited, cannot pass through the plane groove of interpolation processing, and the problem that the boring and milling depth of conventional tool cannot be changed.

Description

Technical Field

[0001] This utility model belongs to the field of machining technology, and in particular relates to a special tool for machining O-ring grooves on a boring and milling machine. Background Technology

[0002] In workpiece machining operations, there are usually operations such as milling, boring, cutting, and grinding. When machining O-ring grooves on a workpiece, milling machines or boring machines are usually selected for milling or boring. For machining O-ring grooves in a workpiece, corresponding tools are required for boring and milling. However, the relevant tools still have the following drawbacks in actual use: When machining O-ring grooves, the tool needs to be inserted into the O-ring groove, close to the inner wall of the O-ring groove, and then rotated for boring and milling. However, during this process, the tool can only rotate with the drive device on the milling machine or boring machine and cannot make linear displacement. According to the conventional boring steps, the tool needs to gradually increase the boring depth to obtain an O-ring groove of sufficient size. However, in some cases where space is limited, it is not possible to change the boring and milling depth of the tool through external structure. For some cases where it is not possible to machine O-ring grooves on a plane by interpolation, ordinary tools are even less applicable. Utility Model Content

[0003] The purpose of this utility model is to provide a special tool for machining O-ring grooves on a boring and milling machine. By setting a base and a tool holder, it solves the problems that ordinary tools are not suitable for machining planar grooves in some space-constrained areas and cannot be machined by interpolation, as well as the problem that conventional tools cannot change the boring and milling depth.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model is a special tool for machining O-ring grooves on a boring and milling machine, including a base and a tool holder. The tool holder is movably mounted on the upper end of the base. An arc-shaped protrusion is fixed at one end of the upper surface of the tool holder, and a square cutting blade is mounted at one end of the arc-shaped protrusion. An adjusting component is fixedly connected to the bottom of the cutter bar. An elongated adjusting groove is provided at the center of the upper end of the base, and the adjusting component is slidably disposed in the adjusting groove. Adjusting bolts are screwed through the base at both ends of the adjusting groove. A scale is embedded and fixed at the upper end of the base, and the scale is located at the end of the cutter bar away from the square blade.

[0005] Furthermore, the base is a cylindrical structure, the cutter bar is a long strip structure, the end of the cutter bar near the square blade is an arc surface, and the cutter bar under the square blade has a rounded corner. The transverse central axis of the cutter bar and the center of the base are aligned from a top view.

[0006] Furthermore, the tool holder is provided with two strip grooves, and each strip groove is provided with a second strip groove below the tool holder. The adjusting member is provided with a third strip groove of the same size as the second strip groove. The size of the first strip groove is larger than the size of the second strip groove.

[0007] Furthermore, two symmetrical fastening screw holes are provided in the base of the adjusting groove, and two fastening bolts are inserted in the tool bar. The head of the fastening bolt is located in the first strip groove, the middle part of the fastening bolt passes through the second strip groove and the third strip groove, and the tail end of the fastening bolt is screwed into the fastening screw hole.

[0008] Furthermore, each of the bases at both ends of the adjustment groove is provided with an adjustment screw hole, and each adjustment screw hole is screwed to an adjustment bolt. The head of the adjustment bolt extends out of the base, and the tail of the adjustment bolt extends into the adjustment groove and is fitted with a rubber block. The side of the rubber block away from the adjustment bolt abuts against the end face of the adjustment component that is close to it.

[0009] Furthermore, the base is provided with mounting screw holes arranged in a ring array.

[0010] Furthermore, a screw is inserted through the square blade, and the tail end of the screw passes through the square blade and is screwed into the arc-shaped protrusion.

[0011] This utility model has the following beneficial effects: This invention solves the problems of conventional cutting tools being unsuitable for machining planar grooves in limited spaces where interpolation is not possible, and the inability of conventional cutting tools to change the boring and milling depth, by setting up a base and a tool holder. The base is connected to the tool holder on a milling machine or boring machine, and the tool holder is fixed relative to the base, allowing for adjustment of the tool holder's position. When machining O-ring grooves, the square insert in the tool contacts the inner wall of the O-ring groove, and then the invention is driven to rotate. Alternatively, the workpiece can be rotated without rotation; either method allows for milling or boring of the O-ring groove within the workpiece. After sufficient cutting is completed, the adjusting bolt can be rotated appropriately to extend the end of the tool holder closer to the square tool beyond the base, thereby increasing the cutting depth in subsequent machining operations. This is suitable for cutting adjustment in some small spaces, changing the boring and milling depth, and is suitable for situations where interpolation cannot be used to machine O-ring grooves on a plane. It has a wider range of applications and its machining efficiency is 5-10 times higher than that of interpolation machining. Compared with interpolation machining, it has better roundness. It is not picky about machine tools and can be used on CNC and ordinary milling machines and boring machines. It solves the problem of limited space and inability to interpolate. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0013] Figure 1A perspective view of a special tool for machining O-ring grooves on a boring and milling machine; Figure 2 A three-dimensional view of the base; Figure 3 This is a three-dimensional view of the base after it has been cut open. Figure 4 This is a bottom-view perspective of the tool holder; Figure 5 This is a cross-sectional view of the tool holder.

[0014] Figure label: 1. Base; 101. Mounting screw hole; 102. Scale; 103. Adjusting bolt; 1031. Rubber block; 104. Adjusting groove; 1041. Fastening screw hole; 105. Adjusting screw hole; 2. Tool holder; 201. Arc-shaped protrusion; 202. Square blade; 2021. Screw; 203. Fastening bolt; 204. Adjusting component; 205. Strip groove one; 206. Strip groove two; 207. Strip groove three. Detailed Implementation

[0015] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0016] Please see Figure 1-5 As shown, this utility model is a special tool for machining O-ring grooves on a boring and milling machine, including a base 1 and a tool holder 2. The tool holder 2 is movably arranged on the upper end of the base 1. An arc-shaped protrusion 201 is fixed at one end of the upper surface of the tool holder 2, and a square cutting blade 202 is arranged at one end of the arc-shaped protrusion 201. The tool holder 2 can slide on the base 1, and the base 1 is connected to the corresponding tool holder. The square insert 202 is installed at the arc protrusion 201 on the tool holder 2. The cutting edge of the square insert 202 protrudes from the arc protrusion 201 and contacts the workpiece to perform O-ring groove cutting. An adjusting component 204 is fixedly connected to the bottom of the tool holder 2. An elongated adjusting groove 104 is provided at the center of the upper end of the base 1, and the adjusting component 204 is slidably disposed in the adjusting groove 104. Adjusting bolts 103 are screwed through the base 1 at both ends of the adjusting groove 104. A scale 102 is embedded and fixed at the upper end of the base 1, and the scale 102 is located at the end of the tool holder 2 away from the square blade 202. The tool holder 2 slides within the adjusting groove 104 via the adjusting member 204, thereby changing the lateral position of the tool holder 2 and altering the length of the tool head (i.e., the position where the square insert 202 is installed) extending out of the base 1. By screwing the adjusting bolt 103 onto the adjusting member 204, fine-tuning can be performed over a small distance. The movement length of the tool holder 2 can be clearly observed through the scale 102, facilitating the determination of the adjusted length and precisely controlling the machining depth of the O-ring groove.

[0017] The base 1 is a cylindrical structure, the tool holder 2 is a long strip structure, the end of the tool holder 2 near the square blade 202 is an arc surface, and the tool holder 2 under the square blade 202 is a rounded corner. The transverse central axis of the tool holder 2 and the center of the base 1 are aligned from a top view. The design ensures that the rotation of the tool holder 2 and the base 1 do not interfere with each other after the tool holder 2 moves, and that precise cutting is still possible. The rounded corners and the arc-shaped end face of the tool holder 2 prevent it from touching the inner wall of the workpiece during machining.

[0018] The tool holder 2 is provided with two strip grooves 205, and each strip groove 2 below the tool holder 2 is provided with a second strip groove 206. The adjusting member 204 is provided with a third strip groove 207 of the same size as the second strip groove 206. The size of the first strip groove 205 is larger than the size of the second strip groove 206. Two symmetrical fastening screw holes 1041 are also provided in the base 1 inside the adjusting groove 104. Two fastening bolts 203 are inserted in the tool bar 2. The head of the fastening bolt 203 is located in the first strip groove 205. The middle part of the fastening bolt 203 passes through the second strip groove 206 and the third strip groove 207. The tail end of the fastening bolt 203 is screwed into the fastening screw hole 1041. When installing the tool holder 2, slide it into the adjusting groove 104 via the adjusting member 204. Then, pass the corresponding fastening bolts 203 through the first strip groove 205, the second strip groove 206, and the third strip groove 207 in sequence, and finally screw them into the fastening screw hole 1041 to keep the tool holder 2 and the base 1 relatively fastened. The tool holder 2 will no longer move, and the cutting position will be determined.

[0019] Adjustment screw holes 105 are provided in the base 1 at both ends of the adjustment groove 104. Each adjustment screw hole 105 is screwed with an adjustment bolt 103. The head of the adjustment bolt 103 extends out of the base 1, and the tail of the adjustment bolt 103 extends into the adjustment groove 104 and is fitted with a rubber block 1031. The side of the rubber block 1031 away from the adjustment bolt 103 abuts against the end face of the adjustment component 204 that is close to it. When the position of the tool holder 2 needs to be adjusted, first loosen it by rotating the fastening bolt 203 so that the tool holder 2 can move on the base 1 (the range of movement is within the length of the strip groove). Then rotate the adjusting bolt 103. One adjusting bolt 103 will rotate outward, and the other adjusting bolt 103 will rotate inward, so that the adjusting part 204 and the tool holder 2 will move closer to the outwardly rotated adjusting bolt 103 until they are adjusted to the appropriate position. Then, tighten the fastening bolt 203.

[0020] The base 1 has through holes 101 arranged in a ring array; the mounting holes 101 are used to fix the tool holder with relevant bolts.

[0021] A screw 2021 is inserted through the square blade 202, and the tail end of the screw 2021 passes through the square blade 202 and is screwed into the arc-shaped protrusion 201; the square blade 202 is installed by the screw 2021, and can be disassembled and replaced when the blade is damaged.

[0022] The specific working principle of this utility model is as follows: First, the base 1 and the tool holder are fixedly connected by the mounting screw hole 101 and the relevant bolts. The tool holder 2 is installed first, and it slides into the adjusting groove 104 via the adjusting member 204. Then, the corresponding fastening bolts 203 are sequentially passed through the first strip groove 205, the second strip groove 206, and the third strip groove 207, and finally screwed into the fastening screw hole 1041, so that the tool holder 2 and the base 1 are relatively fixed and the tool holder 2 no longer moves. When adjusting the position of the tool holder 2, the fastening bolts 203 are first rotated to loosen it, allowing the tool holder 2 to move on the base 1 (the movement range is within the length of the strip groove). Then, the bolt in the adjusting screw hole 105 is rotated... When one adjusting bolt 103 is turned outward, the other adjusting bolt 103 is turned inward (for example, when the adjusting bolt 103 near the square blade 202 is turned outward, the other adjusting bolt 103 moves inward toward the adjusting groove 104, so that the end of the tool holder 2 containing the square blade 202 extends more out of the base 1, increasing the cutting depth). By observing the scale on the scale 102, the length of movement at this time can be known until the required cutting depth is obtained and then stop. At this time, the rubber blocks 1031 at the tail ends of the two adjusting bolts 103 are abutting against the adjusting part 204 and cannot move laterally. Finally, the fastening bolt 203 is screwed back into the base 1 to maintain relative fixation, and cutting can be performed again.

[0023] The above are merely preferred embodiments of the present utility model and do not limit the present utility model. Any modifications, equivalent substitutions, or improvements made to the technical solutions described in the foregoing embodiments, or to some of the technical features, shall fall within the protection scope of the present utility model.

Claims

1. A special tool for machining O-ring grooves on a boring and milling machine, comprising a base (1) and a tool holder (2), characterized in that: The upper end of the base (1) is movably provided with a knife bar (2), and an arc-shaped protrusion (201) is fixed at one end of the upper surface of the knife bar (2), and a square blade (202) is provided at one end of the arc-shaped protrusion (201). An adjusting component (204) is fixedly connected to the bottom of the cutter bar (2). A long strip-shaped adjusting groove (104) is opened at the center of the upper end of the base (1), and the adjusting component (204) is slidably disposed in the adjusting groove (104). Adjusting bolts (103) are screwed through the base (1) at both ends of the adjusting groove (104). A scale (102) is embedded and fixed at the upper end of the base (1). The scale (102) is located at the end of the cutter bar (2) away from the square blade (202).

2. The special cutting tool for machining O-ring grooves on a boring and milling machine according to claim 1, characterized in that: The base (1) is a cylindrical structure, the cutter bar (2) is a long strip structure, the end of the cutter bar (2) near the square blade (202) is an arc surface, and the cutter bar (2) under the square blade (202) is a rounded corner. The transverse central axis of the cutter bar (2) and the center of the base (1) are aligned from a top view.

3. The special cutting tool for machining O-ring grooves on a boring and milling machine according to claim 1, characterized in that: The cutter bar (2) is provided with two strip grooves (205), and each of the cutter bars (2) below the strip grooves (205) is provided with a strip groove (206). The adjusting member (204) is provided with a strip groove (207) of the same size as the strip groove (206). The size of the strip groove (205) is larger than the size of the strip groove (206).

4. A special cutting tool for machining O-ring grooves on a boring and milling machine according to claim 3, characterized in that: Two symmetrical fastening screw holes (1041) are also provided in the base (1) of the adjustment groove (104). Two fastening bolts (203) are inserted in the knife bar (2). The head of the fastening bolt (203) is located in the first strip groove (205). The middle part of the fastening bolt (203) passes through the second strip groove (206) and the third strip groove (207). The tail end of the fastening bolt (203) is screwed into the fastening screw hole (1041).

5. A special cutting tool for machining O-ring grooves on a boring and milling machine according to claim 1, characterized in that: Adjustment screw holes (105) are provided in the bases (1) at both ends of the adjustment groove (104). Each adjustment screw hole (105) is screwed with an adjustment bolt (103). The head of the adjustment bolt (103) extends out of the base (1), and the tail of the adjustment bolt (103) extends into the adjustment groove (104) and is fitted with a rubber block (1031). The side of the rubber block (1031) away from the adjustment bolt (103) abuts against the end face of the adjustment component (204) that is close to it.

6. A special cutting tool for machining O-ring grooves on a boring and milling machine according to claim 1, characterized in that: The base (1) has through-holes (101) arranged in a ring array.

7. A special cutting tool for machining O-ring grooves on a boring and milling machine according to claim 1, characterized in that: A screw (2021) is inserted through the square blade (202), and the tail end of the screw (2021) passes through the square blade (202) and is screwed into the arc-shaped protrusion (201).

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