Alloy tool bit with good chip removal effect for percussion drill

Abstract

The utility model discloses an alloy tool bit with a good chip removal effect for a percussion drill, and relates to the technical field of machine tools. An alloy tool bit with a good chip removal effect for a percussion drill comprises a drill bit body, a limiting device is arranged on the drill bit body and comprises a fixing bolt and a guide block, the guide block is in a T shape, a first fixing bolt groove is formed in the outer wall of the drill bit body, and the outer wall of the fixing bolt is in threaded connection with the interior of the first fixing bolt groove. A second fixing bolt groove is formed in the outer wall of the guide block, a guide groove is formed in the outer wall of the lower end of the drill bit body, a fixing bolt in the limiting device is screwed to rotate so that the other end of the fixing bolt can be disengaged from the interior of the second fixing bolt groove, and then the drill bit and the guide block can be taken down from the drill bit body by pulling the drill bit. In this way, it is avoided that when the drill bit is abraded, the whole drill bit body needs to be detached for replacement, the cost is effectively reduced, and meanwhile the practicability of the drill bit body is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tools, and particularly relates to an alloy cutter head with good chip removal effect for an impact drill. Background Art

[0002] As a drilling tool, an electric drill is suitable for drilling on steel, wood and plastic, and is one of the most widely used hand-held electric tools. The Chinese utility model patent, with the authorization publication number "CN219274576U", discloses an alloy cutter head with good chip removal effect for an impact drill, belonging to the technical field of alloy cutter heads. An installation rod is fixed at the top of the drill bit, chip removal grooves are formed on the surface of the drill bit, a chip removal guard plate is fixed in the inner cavity of the chip removal groove, and chip guiding grooves are formed on the surface of the drill bit. Under the action of the cooperation of the shapes of the chip removal groove and the chip removal guard plate during rotation, chips are discharged to improve the chip discharge effect. Then, air is collected by a collection shell and discharged into an exhaust groove, so that the air can assist in blowing out the chips, further improving the chip discharge effect. This not only reduces the friction force during the rotation of the drill bit, but also increases the drilling effect of the drill bit.

[0003] The above technical solution discharges chips under the action of the cooperation of the shapes of the chip removal groove and the chip removal guard plate during rotation to improve the chip discharge effect. Then, air is collected by a collection shell and discharged into an exhaust groove, so that the air can assist in blowing out the chips. However, the above technical solution still has certain defects. For example, the device inserts the cutter head into the impact drill, and then uses the impact drill to fix the installation rod. However, when the drill bit is worn, the operator needs to replace the entire impact drill bit, which increases the cost and reduces the use efficiency. Summary of the Utility Model

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and provide an alloy cutter head with good chip removal effect for an impact drill, which can solve the problem that the device inserts the cutter head into the impact drill, and then uses the impact drill to fix the installation rod. However, when the drill bit is worn, the operator needs to replace the entire impact drill bit, which increases the cost and reduces the use efficiency.

[0005] To achieve the above purpose, the utility model provides the following technical solution: an alloy cutter head with good chip removal effect for an impact drill, including a drill bit body, and a limiting device is arranged on the drill bit body;

[0006] The limiting device includes a fixing bolt and a guiding block. The guiding block is in a "T" shape, and a first fixing bolt groove is formed on the outer wall of the drill bit body. The outer wall of the fixing bolt is threadedly connected with the inside of the first fixing bolt groove;

[0007] Among them, a second fixing bolt groove is formed on the outer wall of the guiding block, a guiding groove is formed on the lower outer wall of the drill bit body, an exhaust groove is formed inside the guiding block, and a drill bit is fixedly connected to one end of the guiding block away from the drill bit body.

[0008] Preferably, the outer wall of the guiding block is slidably connected to the inside of the guiding groove, and one end of the fixing bolt close to the second fixing bolt groove is threadedly extended into the inside of the guiding groove and is threadedly connected to the inside of the second fixing bolt groove;

[0009] Among them, the inside of the exhaust groove communicates with the inside of the guiding groove.

[0010] Preferably, a collecting shell is installed on the outer wall of the drill bit body;

[0011] Among them, the inside of the collecting shell communicates with the inside of the guiding groove.

[0012] Preferably, a connecting head is installed at one end of the drill bit body away from the guiding block;

[0013] Among them, the same exhaust groove is formed inside the drill bit.

[0014] Preferably, the two exhaust grooves communicate with each other inside;

[0015] Among them, a chip discharge groove is formed on the outer wall of the drill bit, and the chip discharge groove is spiral.

[0016] Preferably, a limiting block groove is formed inside the guiding groove, and a limiting block is formed on the outer wall of one end of the guiding block away from the second fixing bolt groove;

[0017] Among them, the outer wall of the limiting block is slidably connected to the inside of the limiting block groove.

[0018] Compared with the prior art, the beneficial effects of the present utility model are:

[0019] 1. For the alloy cutter head with good chip discharge effect of this impact drill, by turning the fixing bolt in the limiting device to rotate so that the other end thereof is disengaged from the inside of the second fixing bolt groove, and then pulling the drill bit, the drill bit and the guiding block can be removed from the drill bit body, which avoids the need to disassemble the entire drill bit body for replacement when the drill bit is worn, effectively reducing the cost and improving the practicability of the drill bit body at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The following further illustrates the present utility model in conjunction with the drawings and embodiments:

[0021] Figure 1 is the three-dimensional structure schematic diagram of the present utility model;

[0022] Figure 2 is the structure schematic diagram outside the guiding block of the present utility model;

[0023] Figure 3 This is a schematic structural diagram of the outside of the fixing bolt of the present utility model;

[0024] Figure 4 This is a schematic structural diagram of the inside of the drill bit of the present utility model;

[0025] Figure 5 This is a schematic structural diagram of the outside of the limit block of the present utility model.

[0026] Reference numerals: 1, drill bit body; 2, fixing bolt; 3, connecting head; 4, collecting shell; 5, first fixing bolt groove; 6, drill bit; 7, chip removal groove; 8, limit block groove; 9, guiding groove; 10, guiding block; 11, second fixing bolt groove; 12, exhaust groove; 13, limit block. Detailed implementation manners

[0027] This part will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The function of the drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but it should not be construed as a limitation on the protection scope of the present utility model.

[0028] In the description of the present utility model, it should be understood that for orientation descriptions, such as up, down, front, back, left, right, etc., the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present utility model.

[0029] In the description of the present utility model, greater than, less than, exceeding, etc. are understood as not including the number itself, and above, below, within, etc. are understood as including the number itself. If there is a description of first and second, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or the sequence relationship of the indicated technical features.

[0030] In the description of the present utility model, unless otherwise clearly defined, words such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present utility model in combination with the specific content of the technical solution.

[0031] Please refer to Figures 1-5 , the present utility model provides a technical solution: an alloy cutter head with good chip removal effect for an impact drill, including a drill bit body 1;

[0032] A limiting device is provided on the drill bit body 1;

[0033] The limiting device includes a fixing bolt 2 and a guiding block 10. The guiding block 10 is in a "T" shape. A first fixing bolt groove 5 is formed on the outer wall of the drill bit body 1. The outer wall of the fixing bolt 2 is threadedly connected to the inside of the first fixing bolt groove 5. A second fixing bolt groove 11 is formed on the outer wall of the guiding block 10. A guiding groove 9 is formed on the lower outer wall of the drill bit body 1. The outer wall of the guiding block 10 is slidably connected to the inside of the guiding groove 9. One end of the fixing bolt 2 close to the second fixing bolt groove 11 extends threadedly into the inside of the guiding groove 9 and is threadedly connected to the inside of the second fixing bolt groove 11. An exhaust groove 12 is formed inside the guiding block 10. The inside of the exhaust groove 12 communicates with the inside of the guiding groove 9. One end of the guiding block 10 away from the drill bit body 1 is fixedly connected to a drill bit 6.

[0034] Wherein, a collecting shell 4 is installed on the outer wall of the drill bit body 1. The inside of the collecting shell 4 communicates with the inside of the guiding groove 9. A connecting head 3 is installed at one end of the drill bit body 1 away from the guiding block 10. An exhaust groove 12 of the same kind is formed inside the drill bit 6. The inside of the two exhaust grooves 12 communicates with each other. A chip discharging groove 7 is formed on the outer wall of the drill bit 6. The chip discharging groove 7 is spiral. A limiting block groove 8 is formed inside the guiding groove 9. A limiting block 13 is formed on the outer wall of one end of the guiding block 10 away from the second fixing bolt groove 11. The outer wall of the limiting block 13 is slidably connected to the inside of the limiting block groove 8.

[0035] Further, when using this device, it is started by connecting to an external power supply. First, the drill bit body 1 is installed on an external device through the connecting head 3. Then, the drill bit body 1 is driven by the external device to drill a hole in the place where drilling is required. Subsequently, drilling is carried out under the cooperation of the drill bit 6 and the chip discharging groove 7. In this way, the chips will be collected inside the chip discharging groove 7. Subsequently, the chips are discharged under the action of the shape of the chip discharging groove 7 itself. During the drilling process, under the action of the rotation of the drill bit body 1, air is discharged into the inside of the exhaust groove 12 through the collecting shell 4. Under the action of the collecting shell 4 and the exhaust groove 12, the air can be guided to be discharged from the other end. Under the action of the air, pressure can be applied to the chips to assist the chips to be discharged from the inside of the chip discharging groove 7. Then, when it is necessary to disassemble the drill bit 6, turn the fixing bolt 2 to rotate so that the other end thereof is disengaged from the inside of the second fixing bolt groove 11. Then, pull the drill bit 6 to remove the drill bit 6 and the guiding block 10 from the drill bit body 1.

[0036] By turning and fixing the bolt 2 in the limiting device to rotate it so that the other end thereof is disengaged from the inside of the second fixing bolt groove 11, and then pulling the drill bit 6, the drill bit 6 and the guide block 10 can be removed from the drill bit body 1. In this way, when the drill bit 6 is worn, it is not necessary to disassemble the entire drill bit body 1 for replacement, effectively reducing the cost and improving the practicability of the drill bit body 1. Under the action of the collecting shell 4 and the exhaust groove 12, air can be introduced and discharged from the other end. Under the action of the air, pressure can be applied to the debris to assist the debris to be discharged from the inside of the chip removal groove 7, which can assist in chip removal, effectively improving the chip removal efficiency and the work efficiency of the staff.

[0037] Working principle: First, install the drill bit body 1 on an external device through the connector 3, and then drive the drill bit body 1 by the external device to drill the place where drilling is required. Subsequently, drilling is carried out under the cooperation of the drill bit 6 and the chip removal groove 7. In this way, the debris will be collected inside the chip removal groove 7. Then, the debris is discharged under the action of the shape of the chip removal groove 7 itself. During the drilling process, under the action of the rotation of the drill bit body 1, air is discharged into the exhaust groove 12 through the collecting shell 4. Under the action of the collecting shell 4 and the exhaust groove 12, air can be introduced and discharged from the other end. Under the action of the air, pressure can be applied to the debris to assist the debris to be discharged from the inside of the chip removal groove 7. Then, when it is necessary to disassemble the drill bit 6, turn and fix the bolt 2 to rotate it so that the other end thereof is disengaged from the inside of the second fixing bolt groove 11, and then pull the drill bit 6 to remove the drill bit 6 and the guide block 10 from the drill bit body 1.

[0038] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art in the technical field, various changes can be made without departing from the gist of the present invention.

Claims

1. An alloy cutter head with good chip removal effect for an impact drill, comprising a drill bit body (1), characterized in that: A limiting device is provided on the drill bit body (1); The limiting device includes a fixing bolt (2) and a guiding block (10). The guiding block (10) is in a "T" shape. A first fixing bolt groove (5) is formed on the outer wall of the drill bit body (1). The outer wall of the fixing bolt (2) is threadedly connected to the inside of the first fixing bolt groove (5); Among them, a second fixing bolt groove (11) is formed on the outer wall of the guiding block (10), a guiding groove (9) is formed on the outer wall at the lower end of the drill bit body (1), an exhaust groove (12) is formed inside the guiding block (10), and a drill bit (6) is fixedly connected to one end of the guiding block (10) away from the drill bit body (1).

2. The alloy cutter head with good chip removal effect for an impact drill according to claim 1, wherein: The outer wall of the guiding block (10) is slidably connected to the inside of the guiding groove (9). One end of the fixing bolt (2) close to the second fixing bolt groove (11) extends threadedly into the inside of the guiding groove (9) and is threadedly connected to the inside of the second fixing bolt groove (11); Among them, the inside of the exhaust groove (12) is communicated with the inside of the guiding groove (9).

3. The alloy cutter head with good chip removal effect for an impact drill according to claim 1, characterized in that: A collecting shell (4) is installed on the outer wall of the drill bit body (1); Among them, the inside of the collecting shell (4) is communicated with the inside of the guiding groove (9).

4. The alloy cutter head with good chip removal effect for an impact drill according to claim 1, wherein: A connecting head (3) is installed at one end of the drill bit body (1) away from the guiding block (10); Among them, an exhaust groove (12) of the same type is formed inside the drill bit (6).

5. The alloy cutter head with good chip removal effect for an impact drill according to claim 4, characterized in that: The inside of the two exhaust grooves (12) is communicated; Among them, a chip discharge groove (7) is formed on the outer wall of the drill bit (6), and the chip discharge groove (7) is in a spiral shape.

6. The alloy cutter head with good chip removal effect for an impact drill according to claim 1, characterized in that: A limiting block groove (8) is formed inside the guiding groove (9), and a limiting block (13) is formed on the outer wall at one end of the guiding block (10) away from the second fixing bolt groove (11); Among them, the outer wall of the limiting block (13) is slidably connected to the inside of the limiting block groove (8).

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