Boring cutter with cooling channel

Abstract

The utility model discloses a boring cutter with a cooling channel, and belongs to the technical field of boring cutters. The boring cutter with the cooling channel comprises a cutter handle and a cutter body, a liquid conveying channel is arranged in the cutter handle, the cooling channel is arranged in the cutter body, the lower end of the cutter handle is fixedly connected with an upper connecting block, the lower end of the upper connecting block is fixedly connected with a hollow screw rod, and an inner thread is arranged on the upper half portion in the cooling channel. The hollow screw penetrates into the cooling channel and is in threaded connection with the cooling channel, the upper end of the cutter body is fixedly connected with a lower connecting block, and the cutter handle is detachably connected with the cutter body through the upper connecting block, the hollow screw and the lower connecting block. According to the boring cutter with the cooling channel, the problem that an existing boring cutter with the cooling channel is high in maintenance cost is solved, when the cutter body is damaged, a worker can firstly detach the bolt and then rotate the cutter handle to enable the hollow screw to be separated, and therefore the cutter handle and the cutter body are separated, the cutter body is maintained or replaced without replacing the whole, and use cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of boring cutters, in particular to a boring cutter with a cooling channel. Background Art

[0002] Boring tools are mainly used to process existing holes on workpieces. A large amount of heat is generated during the boring process, so boring tools with cooling channels are needed to control the temperature and improve the processing accuracy. However, most common boring tools with cooling channels are one-piece. When the tool body of an one-piece boring tool is worn or damaged, it needs to be replaced as a whole, which is very expensive.

[0003] In summary, we propose a detachable boring tool with cooling channels to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of the present utility model is to provide a boring tool with a cooling channel, which can effectively solve the above-mentioned problems by separating the tool handle and the tool body.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a boring tool with a cooling channel, comprising a tool handle and a tool body, an infusion channel provided inside the tool handle, a cooling channel provided inside the tool body, the lower end of the tool handle is fixedly connected to an upper connecting block, the lower end of the upper connecting block is fixedly connected to a hollow screw, the infusion channel passes through the upper connecting block and the hollow screw, an internal thread is provided on the upper half of the interior of the cooling channel, the internal thread matches the external thread of the hollow screw, the hollow screw penetrates into the interior of the cooling channel and is threadedly connected to the cooling channel, and the cooling channel and the infusion channel are communicated, the upper end of the tool body is fixedly connected to a lower connecting block, and the tool handle is detachably connected to the tool body through the upper connecting block, the hollow screw and the lower connecting block.

[0006] Preferably, a liquid inlet is provided on the upper surface of the knife handle, and a tapered channel is provided at the top of the infusion channel. The tapered channel is set to be an inverted cone and communicates with the liquid inlet and the infusion channel.

[0007] Preferably, a plurality of upper screw holes are provided on the outer circumference of the upper connecting block, and a plurality of lower screw holes are provided on the outer circumference of the lower connecting block. Small bolts are connected to the inner threads of the lower screw holes.

[0008] Preferably, a blade groove is provided on the outer surface of the blade body, and a plurality of liquid outlets are provided on the surface of the blade groove, and the liquid outlets are communicated with the cooling channel.

[0009] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0010] (1) The present invention provides a boring tool with a cooling channel, wherein the tool handle and the tool body are detachably connected. When the tool body is damaged, the operator can first remove the bolts and then rotate the tool handle to disengage the hollow screw, thereby separating the tool handle from the tool body. The tool body can be repaired or replaced without replacing the entire tool body, thereby saving use costs.

[0011] (2) The present invention provides a boring tool with a cooling channel. The top of the infusion channel is designed in an inverted cone shape. The structure is large at the top and small at the bottom. This shape facilitates the coolant to smoothly enter the infusion channel from the liquid inlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional diagram of the entire utility model;

[0013] Figure 2 This is a schematic diagram of the knife handle and knife body of the utility model when they are disassembled;

[0014] Figure 3 Schematic diagram of the tapered channel and the infusion channel of the present invention;

[0015] Figure 4 This is a schematic diagram of the upper connecting block and the connecting block of the present invention when being assembled and disassembled.

[0016] In the figure: 1. Tool handle; 11. Liquid inlet; 12. Liquid infusion channel; 121. Conical channel; 13. Upper connecting block; 131. Upper screw hole; 14. Hollow screw; 2. Tool body; 21. Cooling channel; 22. Lower connecting block; 221. Lower screw hole; 23. Tool groove; 231. Liquid outlet; 3. Small bolt. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] See also Figure 1-4A boring tool with a cooling channel includes a tool handle 1 and a tool body 2. The tool handle 1 is provided with an infusion channel 12, and the tool body 2 is provided with a cooling channel 21. The lower end of the tool handle 1 is fixedly connected to the upper connecting block 13, and the lower end of the upper connecting block 13 is fixedly connected to the hollow screw 14. The infusion channel 12 passes through the upper connecting block 13 and the hollow screw 14. The upper half of the interior of the cooling channel 21 is provided with an internal thread, which matches the external thread of the hollow screw 14. The hollow screw 14 penetrates the interior of the cooling channel 21 and is in contact with the cooling channel 21. Threaded connection, and the cooling channel 21 is communicated with the infusion channel 12. The upper end of the blade body 2 is fixedly connected with the lower connecting block 22. The handle 1 is detachably connected to the blade body 2 through the upper connecting block 13, the hollow screw 14 and the lower connecting block 22. During installation, the hollow screw 14 at the lower end of the handle 1 is aligned with the cooling channel 21 and threadedly inserted, so that the blade body 2 and the handle 1 are threadedly connected. After connection, the infusion channel 12 is communicated with the cooling channel 21. At this time, the coolant inside the infusion channel 12 can be transported to the inside of the cooling channel 21.

[0019] Furthermore, a liquid inlet 11 is provided on the upper surface of the knife handle 1, and a tapered channel 121 is provided at the top of the infusion channel 12. The tapered channel 121 is set to an inverted cone and is connected to the liquid inlet 11 and the infusion channel 12. When in use, by setting the inverted cone-shaped tapered channel 121, the tapered channel 121 can be made larger at the top and smaller at the bottom, thereby facilitating the transmission of coolant to the interior of the infusion channel 12.

[0020] Furthermore, a plurality of upper screw holes 131 are provided on the outer circumference of the upper connecting block 13, and a plurality of lower screw holes 221 are provided on the outer circumference of the lower connecting block 22. The lower screw holes 221 and the internal threads of the lower screw holes 221 are connected with small bolts 3. During use, when the cutter body 2 is worn or damaged and needs to be replaced, the staff can first rotate and remove the small bolts 3 to separate the upper connecting block 13 from the lower connecting block 22. At this time, the cutter body 2 and the tool handle 1 can still be fixedly connected by the hollow screw 14. The tool handle 1 can be rotated again to separate the hollow screw 14 from the cooling channel 21, thereby completing the separation of the cutter body 2 and the cutter body 2, so that the damaged cutter body 2 can be repaired or replaced, thereby saving use costs and increasing the overall applicability. During installation, the reverse operation can be performed.

[0021] Furthermore, a knife groove 23 is provided on the outer surface of the knife body 2, and a plurality of liquid outlets 231 are provided on the surface of the knife groove 23. The liquid outlets 231 are communicated with the cooling channel 21. When in use, the coolant flows through the infusion channel 12 and the cooling channel 21 and finally flows out from the liquid outlet 231. When flowing, the entire knife body 2 can be cooled, and the heat dissipation effect on the surface of the knife body 2 is increased after flowing out.

[0022] Working principle: The present invention is a boring tool with a cooling channel. When in use, the coolant enters from the liquid inlet 11 of the tool handle 1, flows into the infusion channel 12 through the inverted tapered conical channel 121, and the coolant in the infusion channel 12 is under pressure. It passes through the infusion channel 12 that penetrates the upper connecting block 13 and the hollow screw 14, and then flows into the cooling channel 21. After flowing in the cooling channel 21 and absorbing heat, it flows out from the liquid outlet 231 on the tool groove 23 to the surface of the tool body 2, thereby achieving cooling work. The connection surface between the lower connecting block 22 and the upper connecting block 13 is provided with an O-ring seal. When the lower connecting block 22 is connected to the end face of the upper connecting block 13, the O-ring is squeezed to form a sealing structure. When the cutter body 2 is worn or damaged and needs to be replaced, the staff first rotates and removes the small bolt 3. At this time, the upper connecting block 13 is separated from the lower connecting block 22, but the cutter body 2 and the tool handle 1 are still fixedly connected through the hollow screw 14. Then the tool handle 1 is rotated again to disengage the hollow screw 14 from the cooling channel 21, thereby completing the separation of the cutter body 2 and the tool handle 1, so that the damaged cutter body 2 can be repaired or replaced, and the new cutter body 2 can be installed, thereby saving the use cost.

Claims

1. A boring tool with a cooling channel, comprising a tool handle (1) and a tool body (2), wherein the tool handle (1) is provided with an infusion channel (12), and the tool body (2) is provided with a cooling channel (21), characterized in that: The lower end of the knife handle (1) is fixedly connected to the upper connecting block (13), and the lower end of the upper connecting block (13) is fixedly connected to the hollow screw (14). The infusion channel (12) passes through the upper connecting block (13) and the hollow screw (14). The upper half of the interior of the cooling channel (21) is provided with an internal thread, and the internal thread matches the external thread of the hollow screw (14). The hollow screw (14) penetrates the interior of the cooling channel (21) and is threadedly connected to the cooling channel (21), so that the cooling channel (21) and the infusion channel (12) are communicated. The upper end of the knife body (2) is fixedly connected to the lower connecting block (22). The knife handle (1) is detachably connected to the knife body (2) through the upper connecting block (13), the hollow screw (14) and the lower connecting block (22).

2. The boring tool with a cooling channel according to claim 1, characterized in that: A liquid inlet (11) is provided on the upper surface of the knife handle (1), and a tapered channel (121) is provided at the top end of the infusion channel (12). The tapered channel (121) is configured in an inverted cone shape and communicates with the liquid inlet (11) and the infusion channel (12).

3. The boring tool with a cooling channel according to claim 2, characterized in that: The outer circumference of the upper connecting block (13) is provided with a plurality of upper screw holes (131), the outer circumference of the lower connecting block (22) is provided with a plurality of lower screw holes (221), and the lower screw holes (221) and the inner threads of the lower screw holes (221) are connected with small bolts (3).

4. The boring tool with a cooling channel according to claim 3, characterized in that: A knife groove (23) is provided on the outer surface of the knife body (2), and a plurality of liquid outlets (231) are provided on the surface of the knife groove (23), and the liquid outlets (231) are communicated with the cooling channel (21).

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