PCD reamer for precise reaming

Abstract

The utility model relates to the technical field of PCD reamers, in particular to a PCD reamer for precise reaming, which comprises a reamer body, the outer surface of the reamer body is movably connected with a protective device in a penetrating manner, the reamer body is of a conical structure, the upper end of the reamer body is fixedly connected with a connecting end, the outer surface of the connecting end is movably connected with a round rod in a penetrating manner, and the round rod is fixedly connected with the connecting end. A limiting device is movably connected to the upper portion of the outer surface of the round rod in a penetrating mode, and a plurality of limiting holes are formed in the outer surface of the round rod and distributed at equal intervals. According to the PCD reamer for precise reaming, the protection device is arranged, so that the reamer can be prevented from accidentally injuring personnel.

Description

Technical Field

[0001] The utility model relates to the technical field of PCD reamer, in particular to a PCD reamer used for precision reaming. Background Art

[0002] PCD reamer is a new tool for processing hole-type parts, which can make the processed workpiece have higher dimensional accuracy. PCD reamers are widely used in: 3C industry, automotive industry, etc., while taper reamer is used to ream holes on workpieces that have been drilled (or expanded), mainly to improve the processing accuracy of holes and reduce their surface roughness. It is a tool used for finishing and semi-finishing holes. The existing PCD reamers have at least the following disadvantages during use: 1. Due to the conical structure of the existing PCD reamer, it is easy to cause stab wounds to personnel and surrounding objects when not in use, thereby increasing safety risks; 2. During the use of the existing PCD reamer, a round rod is inserted into the PCD reamer for manual drilling operation, but since the round rod is not restricted, it is easy to slide on the PCD reamer, thereby affecting the operation. Therefore, we launched a PCD reamer for precision reaming. Utility Model Content

[0003] The main purpose of the utility model is to provide a PCD reamer for precision reaming, which can effectively solve the problems in the background technology.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A PCD reamer for precision reaming comprises a reamer body, the outer surface of the reamer body is interspersed with a protective device movably connected, the reamer body is a conical structure, the upper end of the reamer body is fixedly connected with a connecting end, the outer surface of the connecting end is interspersed with a round rod movably connected, the upper part of the outer surface of the round rod is interspersed with a limiting device movably connected, the outer surface of the round rod is provided with a plurality of limiting holes, and the plurality of limiting holes are equidistantly distributed.

[0006] Preferably, the protective device comprises an outer shell, a plurality of anti-rolling bumps are fixedly connected to the outer surface of the outer shell, the plurality of anti-rolling bumps are distributed in a ring shape with equal distances, and a notch is formed at the upper end of the outer shell.

[0007] Preferably, the outer shell is movably connected to the reamer body through insertion.

[0008] Preferably, the limiting device includes a horizontal plate, the lower left and lower right parts of the horizontal plate are fixedly connected to limiting rods, the outer surfaces of the two limiting rods are fixedly connected to a plurality of rubber rings, and a through groove is opened in the middle of the front end of the horizontal plate to pass through the front and back.

[0009] Preferably, a circular groove is formed on the outer surface of the connecting end and passes through the connecting end on the left and right sides.

[0010] Preferably, the two limiting rods are respectively inserted and movably connected with the two limiting holes.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. By setting a protective device, the outer shell and the reamer body are inserted and connected together. Since the reamer body is a conical structure, as the insertion continues, the reamer body will squeeze the outer shell, so that the outer shell is fixed on the outer surface of the reamer body, thereby preventing the reamer body from causing stabbing injuries to personnel. Since a number of anti-rolling bumps are fixed on the outer shell, rolling can be avoided when the outer shell and the reamer body are sleeved;

[0013] 2. By opening a number of limit holes on the round rod and inserting the two limit rods on the limit device into the two limit holes, the position of the round rod can be limited, thereby preventing the round rod from sliding left and right on the connecting end, avoiding affecting the operation and improving stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of a PCD reamer used for precision reaming of holes according to the utility model;

[0015] Figure 2 This is a schematic diagram of the overall structure of the protective device of the PCD reamer used for precision reaming of holes in the utility model;

[0016] Figure 3 It is a schematic diagram of the overall structure of the limiting device of the PCD reamer used for precision reaming of holes in the utility model;

[0017] Figure 4 It is a schematic diagram of the overall structure of the connection end of the PCD reamer used for precision reaming of holes in the utility model.

[0018] In the figure: 1, reamer body; 2, protective device; 3, round rod; 4, connecting end; 5, limit device; 6, limit hole; 21, outer shell; 22, anti-rolling protrusion; 23, notch; 41, round groove; 51, cross plate; 52, limit rod; 53, rubber ring; 54, through groove. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] See also Figure 1-4 , the utility model provides a technical solution:

[0023] The PCD reamer used for precision reaming comprises a reamer body 1, a protective device 2 is inserted and movably connected to the outer surface of the reamer body 1, the reamer body 1 is a conical structure, a connecting end 4 is fixedly connected to the upper end of the reamer body 1, a round rod 3 is inserted and movably connected to the outer surface of the connecting end 4, a limiting device 5 is inserted and movably connected to the upper part of the outer surface of the round rod 3, and a plurality of limiting holes 6 are opened on the outer surface of the round rod 3, and the plurality of limiting holes 6 are distributed at equal distances.

[0024] In this embodiment, the protective device 2 includes an outer shell 21, and a plurality of anti-rolling protrusions 22 are fixedly connected to the outer surface of the outer shell 21. The plurality of anti-rolling protrusions 22 are distributed in a ring shape with equal distances. A notch 23 is opened at the upper end of the outer shell 21; the outer shell 21 is movably connected to the reamer body 1 through insertion.

[0025] In this embodiment, the limiting device 5 includes a horizontal plate 51, and the left and right lower ends of the horizontal plate 51 are fixedly connected to the limiting rods 52, and the outer surfaces of the two limiting rods 52 are fixedly connected to a plurality of rubber rings 53. A through groove 54 that passes through the front and back is opened in the middle of the front end of the horizontal plate 51; a circular groove 41 that passes through the left and right is opened on the outer surface of the connecting end 4; the two limiting rods 52 are respectively inserted and movably connected with the two limiting holes 6. After the rubber ring 53 enters the limiting hole 6, the limiting rod 52 can be prevented from shaking in the limiting hole 6 under non-human conditions.

[0026] It should be noted that the utility model is a PCD reamer for precision reaming. During use, the round rod 3 is inserted into the connecting end 4. After adjusting the position, the two limiting rods 52 on the limiting device 5 are inserted into the two limiting holes 6 on the round rod 3. The position of the round rod 3 can be limited, thereby preventing the round rod 3 from sliding left and right on the connecting end 4, avoiding affecting the operation, and improving stability. When the reamer is not in use, the outer shell 21 and the reamer body 1 are inserted and connected together. Since the reamer body 1 is a conical structure, as the insertion continues, the reamer body 1 will squeeze the outer shell 21, so that the outer shell 21 is fixed to the outer surface of the reamer body 1, thereby preventing the reamer body 1 from causing stabbing injuries to personnel. Since a number of anti-roll bumps 22 are fixed on the outer shell 21, rolling can be avoided when the outer shell 21 is sleeved with the reamer body 1.

[0027] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A PCD reamer for precision reaming, comprising a reamer body (1), characterized in that: The outer surface of the reamer body (1) is interspersed with a protective device (2) in a movable connection. The reamer body (1) is a conical structure. The upper end of the reamer body (1) is fixedly connected with a connecting end (4). The outer surface of the connecting end (4) is interspersed with a round rod (3) in a movable connection. The upper part of the outer surface of the round rod (3) is interspersed with a limiting device (5) in a movable connection. The outer surface of the round rod (3) is provided with a plurality of limiting holes (6), and the plurality of limiting holes (6) are distributed at equal distances. The protective device (2) comprises an outer shell (21), a plurality of anti-rolling bumps (22) are fixedly connected to the outer surface of the outer shell (21), the plurality of anti-rolling bumps (22) are distributed in a ring shape at equal distances, and a notch (23) is formed at the upper end of the outer shell (21).

2. The PCD reamer for precision reaming according to claim 1, characterized in that: The outer shell (21) is movably connected to the reamer body (1) by interpenetration.

3. The PCD reamer for precision reaming according to claim 1, characterized in that: The limiting device (5) comprises a transverse plate (51), the lower left portion and the lower right portion of the transverse plate (51) are both fixedly connected to limiting rods (52), the outer surfaces of the two limiting rods (52) are both fixedly connected to a plurality of rubber rings (53), and a through slot (54) is formed in the middle of the front end of the transverse plate (51) and passes through the front and rear ends.

4. The PCD reamer for precision reaming according to claim 1, characterized in that: The outer surface of the connecting end (4) is provided with a circular groove (41) extending therethrough to the left and right.

5. The PCD reamer for precision reaming according to claim 3, characterized in that: The two limiting insertion rods (52) are respectively inserted and movably connected with the two limiting holes (6).

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