Drill bit with cooling structure

Abstract

The utility model relates to the technical field of drill bits, and discloses a drill bit with a cooling structure, which comprises a drill rod, a mounting port is arranged on the arc-shaped outer wall of the drill rod, a cooling mechanism is arranged in the drill rod, and the cooling mechanism comprises a communicating pipe, a conveying pipe, a spiral cylinder, a contact groove, a flowing cavity, a shunting block and an arc-shaped groove. A mounting hole is formed in the top of the drill rod, a communicating pipe is fixedly mounted on the inner wall of the mounting hole, and a conveying pipe is fixedly connected to the bottom end of the communicating pipe. According to the drill bit with the cooling structure, the cooling mechanism is arranged and matched with circulation of cooling liquid in the spiral barrel and the conveying pipe, so that the drill rod is cooled, the contact area of the cooling mechanism for heat exchange in the drill rod is enlarged through the arrangement of the contact groove, and meanwhile the cooling mechanism is matched with the flow dividing block arranged in a triangular mode to achieve the flow dividing effect on the cooling liquid in the spiral barrel; the drill rod can obtain a stable cooling effect, and the continuous operation performance of the drill rod is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of drill bits, in particular to a drill bit with a cooling structure. Background Art

[0002] Drilling machines are mainly used for drilling, reaming, boring and tapping. The drill bit on the drilling machine will generate high temperature when working, which will affect both the workpiece and the drill bit. Therefore, the drill bit usually needs to use a cooling structure to reduce its temperature.

[0003] According to a drill bit with a cooling structure disclosed (publication number: CN219748523U), in the above application, the coolant can be sprayed directly onto the surface of the drill bit body through the nozzle, avoiding the coolant falling straight down due to gravity without contacting the drill bit, thereby improving the utilization rate of the coolant. At the same time, the setting of the cooling coil can quickly cool and dissipate heat for the control box, thereby improving the heat dissipation efficiency of the control components of the drill bit body.

[0004] However, during the actual use of the above-mentioned equipment, the surface temperature of the drill bit will be reduced by the external water spray. However, during the continuous operation of the drill bit, the inner diameter of the hole drilled in the material is equivalent to the diameter of the drill bit, which makes the contact efficiency between the drill bit surface in the hole and the cooling water low, thereby resulting in low efficiency in reducing the temperature of the drill bit itself. In view of this, we propose a drill bit with a cooling structure. Utility Model Content

[0005] The purpose of the utility model is to provide a drill bit with a cooling structure to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a drill bit with a cooling structure, comprising a drill rod, a mounting opening is provided on the arc-shaped outer wall of the drill rod, a cooling mechanism is provided inside the drill rod, and the cooling mechanism comprises:

[0007] A connecting pipe, wherein a mounting hole is provided at the top of the drill rod, a connecting pipe is fixedly installed on the inner wall of the mounting hole, and a conveying pipe is fixedly connected to the bottom end of the connecting pipe;

[0008] A spiral cylinder, the end of the delivery pipe is fixedly connected with the spiral cylinder, the inner wall of the drill rod is provided with a contact groove, and the inner wall of the spiral cylinder is provided with a flow cavity;

[0009] A diverter block is fixedly mounted on the inner wall of the flow chamber, and an arc groove is opened on the outer wall of the diverter block.

[0010] Preferably, a separation zone is provided inside the connecting pipe to achieve the effect of simultaneously allowing the coolant to flow in and out through one pipe.

[0011] Preferably, the spiral drum is arranged in a spiral shape, and the two ends of the spiral drum are respectively connected to the top end and the bottom end of the delivery pipe, so that a closed loop can be realized between the delivery pipe and the spiral drum, thereby realizing the circulation of the coolant.

[0012] Preferably, the contact groove is arranged in a spiral shape, and the spiral barrel is adapted to the contact groove, and the spiral barrel is arranged inside the contact groove during installation, thereby increasing the contact area between the spiral barrel and the inner wall of the drill pipe.

[0013] Preferably, the diverter block is arranged in a triangular shape, and the top of the diverter block faces the center of the spiral cylinder, so that when the coolant flows in the flow cavity, it will be affected by the diverter block to produce a drainage effect in the up and down directions.

[0014] Preferably, a chip removal assembly is provided on the arc-shaped outer wall of the drill rod, and the chip removal assembly includes a chip removal groove. The arc-shaped outer wall of the drill rod is provided with a chip removal groove, and a triangular slice is provided on the inner wall of the chip removal groove.

[0015] Preferably, the chip groove is spirally arranged on the arc-shaped outer wall of the drill rod, and the triangular slices are provided in multiple groups, and the multiple groups of triangular slices are staggeredly arranged on the inner wall of the chip groove.

[0016] Compared with the prior art, the utility model provides a drill bit with a cooling structure, which has the following beneficial effects:

[0017] 1. The drill bit with a cooling structure is provided with a cooling mechanism, which cooperates with the coolant in the spiral barrel and the conveying pipe to cool the drill rod, and the contact groove is set to expand the contact area of ​​the cooling mechanism for exchanging heat in the drill rod. At the same time, the diversion effect of the coolant in the spiral barrel by the diversion block set in a triangle is cooperated, so that the drill rod can obtain a stable cooling effect, thereby ensuring the continuous operation performance of the drill rod.

[0018] 2. The drill bit with a cooling structure is provided with a spiral chip groove on the outer surface of the drill rod, and cooperates with the triangular slice in the chip groove that contacts the spiral barrel, so that the triangular slice can have a cutting effect on the waste chips entering the chip groove, and because the triangular slice is in contact with the spiral barrel, the temperature of the triangular slice and the chip groove can be reduced in time, thereby ensuring that a good cooling effect can be obtained inside and outside the drill rod, thereby ensuring the stable working state of the drill rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the separation of the drill rod and the spiral cylinder of the utility model;

[0022] Figure 4 It is a schematic diagram of the cross-sectional structure of the spiral cylinder of the utility model.

[0023] In the figure: 1, drill rod; 2, mounting port; 3, cooling mechanism; 31, connecting pipe; 32, conveying pipe; 33, spiral cylinder; 34, contact groove; 35, flow cavity; 36, diverter block; 37, arc groove; 41, chip removal assembly; 41, chip removal groove; 42, triangular slice. DETAILED DESCRIPTION

[0024] like Figure 1-Figure 4 As shown, the utility model provides a technical solution: a drill bit with a cooling structure, including a drill rod 1, a mounting opening 2 is opened on the arc-shaped outer wall of the drill rod 1, a cooling mechanism 3 is arranged inside the drill rod 1, and the cooling mechanism 3 includes a connecting pipe 31, a conveying pipe 32, a spiral cylinder 33, a contact groove 34, a flow cavity 35, a diverter block 36 and an arc groove 37.

[0025] In one embodiment of the utility model, a mounting hole is provided at the top of the drill rod 1, a connecting pipe 31 is fixedly installed on the inner wall of the mounting hole, a delivery pipe 32 is fixedly connected to the bottom end of the connecting pipe 31, a spiral cylinder 33 is fixedly connected to the end of the delivery pipe 32, a contact groove 34 is provided on the inner wall of the drill rod 1, a flow cavity 35 is provided on the inner wall of the spiral cylinder 33, a diverter block 36 is fixedly installed on the inner wall of the flow cavity 35, and an arc groove 37 is provided on the outer wall of the diverter block 36.

[0026] Furthermore, the mounting port 2 is arranged on the top arc-shaped outer wall of the drill rod 1, and the number of the mounting ports 2 is arranged in multiple groups, and the multiple groups of mounting ports 2 are evenly distributed on the arc-shaped outer wall of the drill rod 1 in a circular array, so as to facilitate the connection between the drill rod 1 and the external machine tool transmission structure, thereby realizing the transmission of the drill rod 1, and then drilling the target material. In addition, the connecting pipe 31 is connected to the coolant circulation pipeline of the machine tool through a rotatable seal, and a dividing zone is arranged inside the connecting pipe 31 to achieve the effect of one pipe to simultaneously realize the inlet and outlet of the coolant. At the same time, the spiral barrel 33 is arranged in a spiral shape, and The two ends of the spiral barrel 33 are respectively connected to the top and bottom ends of the delivery pipe 32, so that a closed loop can be realized between the delivery pipe 32 and the spiral barrel 33, thereby realizing the circulation of the coolant. Specifically, the contact groove 34 is arranged in a spiral shape, and the spiral barrel 33 is adapted to the contact groove 34, and the spiral barrel 33 is arranged inside the contact groove 34 during installation, thereby increasing the contact area between the spiral barrel 33 and the inner wall of the drill rod 1. When the coolant circulates in the spiral barrel 33, the heat on the inner wall of the drill rod 1 can be more efficiently taken away, thereby realizing the cooling of the drill rod 1.

[0027] In addition, the diverter block 36 is arranged in a triangular shape, and the top of the diverter block 36 is toward the center of the spiral cylinder 33, so that when the coolant circulates in the flow cavity 35, it will be affected by the diverter block 36 and produce a drainage effect in the up and down directions, thereby making the coolant in the flow cavity 35 can produce a certain mixing effect, ensuring the continuous cooling effect of the coolant on the drill pipe 1. At the same time, the number of diverter blocks 36 is arranged in several groups, and several groups of diverter blocks 36 are equidistantly distributed on the inner wall of the flow cavity 35, and the diverter block 36 is arranged on the side of the flow cavity 35 close to the outer surface of the drill pipe 1.

[0028] In an embodiment of the utility model, a chip removal assembly 4 is provided on the arc-shaped outer wall of the drill rod 1, and the chip removal assembly 4 includes a chip removal groove 41. The chip removal groove 41 is opened on the arc-shaped outer wall of the drill rod 1, and a triangular slice 42 is provided on the inner wall of the chip removal groove 41. Specifically, the chip removal groove 41 is spirally arranged on the arc-shaped outer wall of the drill rod 1, and a plurality of triangular slices 42 are provided, and the plurality of triangular slices 42 are staggeredly arranged on the inner wall of the chip removal groove 41. In addition, the end of the triangular slice 42 contacts the spiral barrel 33. When the drill rod 1 rotates at a high speed, the waste chips generated by drilling move upward through the chip removal groove 41. At this time, the waste chips move in the chip removal groove 41, so that the triangular slice 42 will have a cutting effect on the waste chips, and because the triangular slice 42 contacts the spiral barrel 33, the temperature of the triangular slice 42 and the chip removal groove 41 can be timely reduced, thereby ensuring that a good cooling effect can be obtained inside and outside the drill rod 1, thereby ensuring a stable working state of the drill rod 1.

[0029] In the utility model, when in use, the mounting component of the machine tool is docked and installed with the mounting opening 2 on the arc-shaped outer wall of the drill rod 1, and the connecting pipe 31 is docked and installed with the circulating cooling pipeline. When the drill rod 1 is working, the cooling mechanism 3 is provided, and the coolant in the spiral barrel 33 and the delivery pipe 32 circulates, so as to cool the drill rod 1. In addition, the contact groove 34 is provided to expand the contact area of ​​the cooling mechanism 3 for exchanging heat in the drill rod 1. At the same time, the diversion effect of the diverter block 36 set in a triangle on the coolant in the spiral barrel 33 enables the drill rod 1 to obtain a stable cooling effect, thereby ensuring the continuous operation performance of the drill rod 1.

[0030] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A drill bit with a cooling structure, comprising a drill rod (1), wherein a mounting opening (2) is provided on an arc-shaped outer wall of the drill rod (1), and wherein: A cooling mechanism (3) is provided inside the drill rod (1), and the cooling mechanism (3) comprises: A connecting pipe (31), wherein a mounting hole is provided at the top of the drill rod (1), a connecting pipe (31) is fixedly mounted on the inner wall of the mounting hole, and a conveying pipe (32) is fixedly connected to the bottom end of the connecting pipe (31); A spiral cylinder (33), the end of the delivery pipe (32) is fixedly connected to the spiral cylinder (33), the inner wall of the drill rod (1) is provided with a contact groove (34), and the inner wall of the spiral cylinder (33) is provided with a flow cavity (35); A flow dividing block (36) is fixedly mounted on the inner wall of the flow chamber (35), and an arc-shaped groove (37) is formed on the outer wall of the flow dividing block (36).

2. The drill bit with a cooling structure according to claim 1, characterized in that: A dividing zone is provided inside the connecting pipe (31).

3. The drill bit with a cooling structure according to claim 1, characterized in that: The spiral cylinder (33) is arranged in a spiral shape, and the two ends of the spiral cylinder (33) are respectively connected to the top end and the bottom end of the conveying pipe (32).

4. The drill bit with a cooling structure according to claim 1, characterized in that: The contact groove (34) is arranged in a spiral shape, and the spiral cylinder (33) is adapted to the contact groove (34), and during installation, the spiral cylinder (33) is arranged inside the contact groove (34).

5. The drill bit with a cooling structure according to claim 1, characterized in that: The diverter block (36) is arranged in a triangular shape, and the top end of the diverter block (36) faces the center of the spiral cylinder (33).

6. The drill bit with a cooling structure according to claim 1, characterized in that: A chip removal assembly (4) is arranged on the arc-shaped outer wall of the drill rod (1), and the chip removal assembly (4) comprises a chip removal groove (41). A chip removal groove (41) is opened on the arc-shaped outer wall of the drill rod (1), and a triangular slice (42) is arranged on the inner wall of the chip removal groove (41).

7. The drill bit with a cooling structure according to claim 6, characterized in that: The chip removal groove (41) is arranged in a spiral shape on the arc-shaped outer wall of the drill rod (1), and the triangular slices (42) are arranged in multiple groups, and the multiple groups of triangular slices (42) are arranged in a staggered shape on the inner wall of the chip removal groove (41).

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