Blanking reamer

Abstract

The utility model relates to the technical field of reamers, in particular to a blanking reamer, which comprises a reamer head, a protective sleeve, a reamer body, a bolt and a fixing rod, the bottom of the reamer body is provided with a limit groove, the top of the reamer head is provided with a limit block, the top of the limit block is inserted into the limit groove, two sides of the limit block are respectively provided with a screw groove, and the screw grooves are connected with the bolt. Round holes are formed in the two sides of the cutter body correspondingly, the two bolts penetrate through the two round holes correspondingly to be connected with the two screw grooves in a meshed mode, movable grooves are formed in the positions, above the two round holes, of the two sides of the cutter body correspondingly, movable plates are installed on the two sides of the interior of the protective sleeve correspondingly, and the two movable plates are inserted into the two movable grooves correspondingly. And fixing rods are mounted at the tops of the two movable plates correspondingly. The tool bit protection device has the advantages of providing protection for the tool bit and guaranteeing the service life.

Description

Technical Field

[0001] The utility model relates to the technical field of reamer, in particular to a blanking reamer. Background Art

[0002] A reamer is a cutting tool used for metal processing, mainly used for reaming holes and processing threads. It consists of a blade with multiple cutting teeth and a drill shank. There are two common types of reamer blades: flat-bottom milling cutters and T-slot milling cutters. It can apply cutting force to the workpiece through rotational motion, so that the metal material is gradually cut or stripped.

[0003] Announcement No.: CN210908357U, a reamer, belonging to the field of mechanical processing tools, including a shank and a cutter head, the cutter head is coaxially fixedly connected to one end of the shank, a threaded rod is coaxially provided at the end of the shank away from the cutter head, a threaded hole for threaded insertion of the threaded rod is coaxially provided at the end of the cutter head away from the shank, a limiting ring is coaxially provided at the opening of the threaded hole, a locking assembly is provided on the limiting ring, the inner diameter of the limiting ring is larger than the diameter of the threaded hole, the outer diameter of the limiting ring is smaller than the diameter of the cutter head, and the diameter of the shank is smaller than the diameter of the cutter head. The utility model achieves the effect of changing the length of the reamer by connecting different numbers of reamers to the threaded hole through a threaded rod and locking it with a locking assembly, so as to realize the purpose of processing holes of different depths.

[0004] In summary, the reamer in the prior art CN210908357U does not have a protective structure for the cutter head. When the cutter head is not in use, it will be exposed to the outside and there is a risk of collision and impact by external objects, which will affect the service life. Utility Model Content

[0005] The utility model aims to provide a blanking reamer, which has the advantages of providing protection for the cutter head and ensuring the service life, and solves the problem that the blanking reamer has insufficient protection structure and affects the service life.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a blanking reamer, comprising a cutter head, a protective sleeve, a cutter body, a bolt and a fixing rod, a limiting groove is provided at the bottom of the cutter body, a limiting block is installed on the top of the cutter head, the top of the limiting block is inserted into the limiting groove, screw grooves are provided on both sides of the limiting block, circular holes are provided on both sides of the cutter body, the two bolts pass through the two circular holes and are meshed with the two screw grooves, movable grooves are provided on both sides of the cutter body above the two circular holes, movable plates are installed on both sides of the protective sleeve, the two movable plates are respectively inserted into the two movable grooves, and fixing rods are respectively installed on the top of the two movable plates.

[0007] When using a blanking reamer in the present technical solution, the tool body is fixedly connected to the transmission mechanism through the flange, the transmission mechanism drives the tool body and the tool head to rotate, and the tool head processes the workpiece through the blade. After the processing is completed, the protective cover is pulled downward, and the protective cover moves in the movable grooves on both sides of the tool body through the movable plates. The protective cover is lowered to a suitable height to cover the tool head on the inside. When the tool head needs to be used, the protective cover is pulled upward so that the fixing rods above the two movable plates are respectively inserted into the fixing grooves on both sides of the tool body, so that the height of the protective cover can be fixed. Use two hand wheels to rotate the two bolts, and unscrew the two bolts from the screw grooves on both sides of the limit block, so that the tool head can be separated from the tool body and the tool head can be maintained.

[0008] Preferably, blades are installed in a circular array on the outside of the cutter head. The cutter head processes the workpiece through the blades.

[0009] Preferably, hand wheels are respectively installed at the ends of the two bolts that are separated from each other, and a distance is left between the two hand wheels and the inner side of the protective sleeve. The two bolts can be rotated using the two hand wheels, and the two hand wheels will not interfere with the protective sleeve.

[0010] Preferably, the protective sleeve is connected at both ends, and the protective sleeve can move on the cutter head and the cutter body.

[0011] Preferably, the blade bodies above the two movable grooves are respectively provided with fixed grooves, and the tops of the two fixed rods pass through the two fixed grooves respectively. The fixed rods and the fixed grooves can fix the height of the protective sleeve.

[0012] Preferably, a flange is installed on the top of the cutter body, and the cutter body is fixedly connected to the transmission mechanism via the flange.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model provides a protective sleeve, a fixing rod and a fixing groove, and the protective sleeve is pulled downward, and the protective sleeve moves in the movable grooves on both sides of the knife body through the movable plates, and the protective sleeve is lowered to a suitable height to cover the knife head inside. When the knife head needs to be used, the protective sleeve is pulled upward, and the fixing rods above the two movable plates are respectively inserted into the fixing grooves on both sides of the knife body, so that the height of the protective sleeve can be fixed, thereby achieving the effect of providing protection for the knife head and ensuring the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model from a first angle;

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model from a second angle;

[0017] Figure 3 It is a cross-sectional structural schematic diagram of the utility model;

[0018] Figure 4 For the utility model Figure 3 Enlarge the structural diagram;

[0019] Figure 5 For the utility model Figure 3 Zoom in on the structural diagram.

[0020] In the figure: 1. cutter head; 2. protective cover; 3. flange; 4. cutter body; 5. handwheel; 6. bolt; 7. movable plate; 8. movable groove; 9. limit groove; 10. limit block; 11. fixed groove; 12. fixed rod; 13. screw groove; 14. round hole. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.

[0023] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the implementation of the present invention, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged according to the general scale, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0024] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0025] Embodiment 1

[0026] like Figure 1-Figure 5As shown, a blanking reamer proposed by the utility model comprises a cutter head 1, a protective sleeve 2, a cutter body 4, a bolt 6 and a fixing rod 12, a limiting groove 9 is provided at the bottom of the cutter body 4, a limiting block 10 is installed on the top of the cutter head 1, the top of the limiting block 10 is inserted into the limiting groove 9, screw grooves 13 are respectively provided on both sides of the limiting block 10, circular holes 14 are respectively provided on both sides of the cutter body 4, two bolts 6 respectively pass through the two circular holes 14 and are meshed and connected with the two screw grooves 13, a blade is installed in a circular array on the outside of the cutter head 1, movable grooves 8 are respectively provided on both sides of the cutter body 4 above the two circular holes 14, movable plates 7 are respectively installed on both sides of the protective sleeve 2, the two movable plates 7 are respectively inserted into the two movable grooves 8, fixing rods 12 are respectively installed on the tops of the two movable plates 7, fixing grooves 11 are respectively provided on the cutter body 4 above the two movable grooves 8, the tops of the two fixing rods 12 respectively pass through the two fixing grooves 11, hand wheels 5 are respectively installed on the opposite ends of the two bolts 6, the upper and lower ends of the protective sleeve 2 are connected, and a flange 3 is installed on the top of the cutter body 4.

[0027] In this embodiment, the cutter body 4 is fixedly connected to the transmission mechanism through the flange 3, and the transmission mechanism drives the cutter body 4 and the cutter head 1 to rotate. The cutter head 1 processes the workpiece through the blade. After the processing is completed, the protective sleeve 2 is pulled down, and the protective sleeve 2 moves in the movable grooves 8 on both sides of the cutter body 4 through the movable plate 7. The protective sleeve 2 drops to a suitable height to cover the cutter head 1 on the inside. When the cutter head 1 needs to be used, the protective sleeve 2 is pulled up so that the fixing rods 12 above the two movable plates 7 are respectively inserted into the fixing grooves 11 on both sides of the cutter body 4, so that the height of the protective sleeve 2 can be fixed, and the two hand wheels 5 are used to rotate the two bolts 6. The two bolts 6 are screwed out from the screw grooves 13 on both sides of the limit block 10, so that the cutter head 1 can be separated from the cutter body 4 and the cutter head 1 can be maintained.

[0028] Embodiment 2

[0029] like Figure 1-Figure 5 As shown, the blanking reamer proposed by the utility model, compared with the first embodiment, this embodiment also includes: a protective sleeve 2 and a hand wheel 5, and a distance is left between the two hand wheels 5 and the inner side of the protective sleeve 2.

[0030] In this embodiment, due to the distance between the two hand wheels 5 and the inner side of the protective cover 2 , the protective cover 2 will not interfere with the two hand wheels 5 when moving up and down.

[0031] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it 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.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A blanking reamer, comprising a cutter head (1), a protective sleeve (2), a cutter body (4), a bolt (6) and a fixing rod (12), characterized in that: A limiting groove (9) is provided at the bottom of the blade body (4), a limiting block (10) is installed at the top of the blade head (1), the top of the limiting block (10) is inserted into the limiting groove (9), screw grooves (13) are provided on both sides of the limiting block (10), circular holes (14) are provided on both sides of the blade body (4), two bolts (6) pass through the two circular holes (14) and are meshed with the two screw grooves (13), movable grooves (8) are provided on both sides of the blade body (4) above the two circular holes (14), movable plates (7) are installed on both sides of the protective sleeve (2), the two movable plates (7) are inserted into the two movable grooves (8), and fixing rods (12) are installed on the tops of the two movable plates (7).

2. A blanking reamer according to claim 1, characterized in that: The outer side of the cutter head (1) is provided with blades in a ring array.

3. A blanking reamer according to claim 1, characterized in that: A hand wheel (5) is respectively installed at the ends of the two bolts (6) which are separated from each other, and a distance is left between the two hand wheels (5) and the inner side of the protective sleeve (2).

4. A blanking reamer according to claim 1, characterized in that: The protective sleeve (2) is connected at both ends.

5. A blanking reamer according to claim 1, characterized in that: The blade body (4) above the two movable grooves (8) is respectively provided with fixed grooves (11), and the tops of the two fixed rods (12) respectively pass through the inside of the two fixed grooves (11).

6. A blanking reamer according to claim 1, characterized in that: A flange (3) is installed on the top of the knife body (4).

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