Core rod for efficiently removing cross hole burrs

Abstract

The utility model provides a core rod for efficiently removing cross hole burrs, and belongs to the technical field of machinery. The problems that burrs are easily formed at the intersections of cylinder barrels and small holes in an existing oil cylinder and an existing air cylinder, and the burrs are very difficult to remove are solved. The core rod for efficiently removing the burrs of the cross hole is composed of a working section and an installation handle which are coaxially arranged, the working section is of a round rod structure, a chip accumulation plane is arranged on the working section, a cutting edge used for cutting off the burrs is arranged at the position, located at the rear end of the chip accumulation plane, of the working section, an included angle is formed between the cutting edge of the cutting edge and the chip accumulation plane, and the installation handle is of a cylinder structure. The deburring device has the advantage of efficient deburring.

Description

Technical Field

[0001] The utility model belongs to the technical field of machinery and relates to a mandrel for efficiently removing burrs at cross - holes. Background Art

[0002] Oil cylinders and air cylinders (collectively referred to as components) are common components in the fields of hydraulics and pneumatics. Although their shapes and structures have great flexibility, they both have a large - diameter hole (called a cylinder barrel) for the piston to move and small holes for the medium to enter and exit that intersect with it; the ratio of the two hole diameters can reach dozens or even hundreds. Generally, the large - diameter cylinder barrel is processed first, and then the small - diameter holes for the medium to enter and exit are processed, so burrs will be formed at the intersection of the two holes.

[0003] Then, it is very difficult to remove such burrs. On the one hand, if not removed thoroughly, it will cause scratches on the sealing leather cup, affecting the sealing performance of the cylinder body. On the other hand, when removing burrs, chamfers cannot appear at the intersection, and the piston hole cannot be scratched.

[0004] Therefore, in order to efficiently and cleanly remove the burrs at the cross - holes without forming rounded corners or scratching the cylinder barrel, a mandrel for efficiently removing burrs at cross - holes is proposed. Summary of the Invention

[0005] The purpose of the utility model is to provide a mandrel for efficiently removing burrs at cross - holes that can efficiently and cleanly remove burrs at cross - holes in view of the above problems existing in the prior art.

[0006] The purpose of the utility model can be achieved by the following technical solutions: A mandrel for efficiently removing burrs at cross - holes, characterized in that the mandrel is composed of a working section and a mounting handle arranged coaxially. The working section is in a round - bar structure. A chip - accumulating plane is provided on the working section. A cutting edge for cutting off burrs is provided at the rear end of the working section on the chip - accumulating plane. An included angle is formed between the cutting edge of the cutting edge and the chip - accumulating plane. The mounting handle is in a cylinder structure.

[0007] In the above - mentioned mandrel for efficiently removing burrs at cross - holes, the general component has a large hole for the working section to extend into and cooperate with, and the general component also has small holes. The cutting edge is used to cut off the burrs at the intersection of the large hole and the small holes.

[0008] In the above - mentioned mandrel for efficiently removing burrs at cross - holes, the included angle is 65 - 75°.

[0009] In the above - mentioned mandrel for efficiently removing burrs at cross - holes, the material of the working section is cemented carbide, and the material of the mounting handle is 45 steel.

[0010] In the above - mentioned mandrel for efficiently removing burrs at cross - holes, a rounded corner is provided at the front end of the working section.

[0011] In the above-mentioned mandrel for efficiently removing burrs from cross holes, a screw rod is provided at the tail of the mounting handle and is connected to a work station frame.

[0012] In the above-mentioned mandrel for efficiently removing burrs from cross holes, the working section and the mounting handle are fixed by bonding or welding.

[0013] Compared with the prior art, the mandrel for efficiently removing burrs from cross holes has the following advantages:

[0014] 1. Wide range of use: This new type can be used to remove burrs at various cross holes and is suitable for removing burrs at cross holes of various materials such as steel, cast iron, aluminum alloy, and copper alloy.

[0015] 2. No rounding will be formed: Since the working section of this mandrel is made of cemented carbide, it has high hardness and high precision, and removing burrs will not form a rounded corner or block the small-diameter cross hole at the cross hole.

[0016] 3. The cylinder barrel will not be scratched: Since the mandrel has a good fit with the aperture of the cross hole and the cut burrs fall on the chip accumulation surface and will not enter the gap between the mandrel and the hole wall, the cylinder wall will not be scratched. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is the working structure diagram of the mandrel for efficiently removing burrs from cross holes of the present invention.

[0018] In the figure, 1. Mandrel; 2. Working section; 3. Mounting handle; 4. Chip accumulation plane; 5. Blade; 6. Large hole; 7. Small hole; 8. Work station frame. DETAILED DESCRIPTION OF THE INVENTION

[0019] The following are specific embodiments of the present invention in combination with the drawings, and the technical solutions of the present invention will be further described, but the present invention is not limited to these embodiments.

[0020] As Figure 1 shown, the mandrel for efficiently removing burrs from cross holes of the present invention, the mandrel 1 is composed of a working section 2 and a mounting handle 3 arranged coaxially. The working section 2 is of a round rod structure. A chip accumulation plane 4 is provided on the working section 2. A blade 5 for cutting off burrs is provided at the rear end of the working section 2 on the chip accumulation plane 4. There is an included angle between the cutting edge of the blade 5 and the chip accumulation plane 4. The mounting handle 3 is of a cylindrical structure.

[0021] Preferably, the general component has a large hole 6 for the working section 2 to extend and fit into, and the general component also has a small hole 7. The blade 5 is used to cut off the burrs at the intersection of the large hole 6 and the small hole 7.

[0022] Preferably, the included angle is 65° to 75°.

[0023] Preferably, the material of the working section 2 is cemented carbide, and the material of the mounting shank 3 is 45 steel.

[0024] Preferably, a fillet is provided at the front end of the working section 2.

[0025] Preferably, a screw rod is provided at the tail of the mounting shank 3 and is connected to the working station frame 8.

[0026] Preferably, the working section 2 and the mounting shank 3 are fixed by bonding or welding.

[0027] Working principle:

[0028] S1: Stably install the mandrel 1 at a position 1 m above the ground, with the cutting edge 5 of the mandrel 1 facing upward, so that the chip accumulation plane 4 is horizontal;

[0029] S2: Blow out the debris at the intersection of the large hole 6 and the small hole 7. Hold the workpiece by hand, align the large hole 6 with the mandrel 1, and keep the position of the small hole 7 intersecting with it facing upward;

[0030] S3: Push the mandrel 1 in. When the cutting edge 5 reaches the intersection, cut off the burr and push it onto the chip accumulation plane 4.

[0031] S4: Pull out the mandrel 1 and blow off the burr debris on the chip accumulation plane 4;

[0032] S5: Repeat this process to easily remove the burrs at the intersecting hole positions.

[0033] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar methods for substitution, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0034] Although terms such as mandrel 1, working section 2, mounting shank 3, chip accumulation plane 4, cutting edge 5, large hole 6, small hole 7, working station frame 8, etc. are used more frequently herein, the possibility of using other terms is not excluded. Using these terms is only for more convenient description and explanation of the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.

Claims

1. A mandrel for efficiently removing burrs from cross holes, characterized in that: The core rod (1) is composed of a coaxially arranged working section (2) and a mounting handle (3); the working section (2) is a round rod structure; a chip accumulation plane (4) is provided on the working section (2); a blade (5) for cutting off burrs is provided on the working section (2) at the rear end of the chip accumulation plane (4); an angle is formed between the cutting edge of the blade (5) and the chip accumulation plane (4); and the mounting handle (3) is a cylindrical structure.

2. A mandrel for efficiently removing burrs from cross holes according to claim 1, characterized in that: The universal component has a large hole (6) for the working section (2) to extend into and fit into, and the universal component also has a small hole (7). The blade (5) is used to cut off burrs at the intersection of the large hole (6) and the small hole (7).

3. A mandrel for efficiently removing burrs from cross holes according to claim 1, characterized in that: The angle is 65-75°.

4. A mandrel for efficiently removing burrs from cross holes according to claim 1, characterized in that: The material of the working section (2) is cemented carbide, and the material of the mounting handle (3) is 45 steel.

5. A mandrel for efficiently removing burrs from cross holes according to claim 1, characterized in that: The front end of the working section (2) is provided with a rounded corner.

6. A mandrel for efficiently removing burrs from cross holes according to claim 1, characterized in that: The tail of the mounting handle (3) is provided with a screw rod and is connected to a work station frame (8).

7. A mandrel for efficiently removing burrs from cross holes according to claim 1, characterized in that: The working section (2) and the mounting handle (3) are fixed by bonding or welding.

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