A coolant spray cover for machine clamping tool and machine clamping tool

Abstract

The utility model relates to the technical field of machining tools, and in particular to a coolant spray cover for machine clamping tools and a machine clamping tool, comprising a shaft rod, a positioning mounting block and a cover plate connected coaxially in sequence, an outer guide cone is provided on the side of the cover plate close to the positioning mounting block, a liquid hole is provided in the axial direction of the shaft rod, a plurality of diversion holes are provided in the radial direction of the positioning mounting block, and the plurality of diversion holes are all connected to the liquid hole, an outer side wall of the end of the shaft rod away from the positioning mounting block is provided with an external thread, a screw hole is concavely provided on the outer side surface of the cover plate, the maximum diameter of the cover plate is larger than the diameter of the positioning mounting block, and the diameter of the positioning mounting block is larger than the diameter of the shaft rod. The coolant spray cover of the utility model can not only output a large flow of coolant, has a good cooling effect, and is conducive to flushing away waste chips, but also can fix and install the tool disc, and is convenient for disassembly and maintenance.

Description

Technical Field

[0001] The utility model relates to the technical field of machining tools, in particular to a cooling liquid spray cover for machine-clamped tools and the machine-clamped tools. Background Art

[0002] Traditional machine-clamped tools spray coolant onto the blades by providing cooling channels in the tool disc. The disadvantages of this cooling method are that the coolant flow is small, the cooling effect is poor, it is difficult to flush away the waste chips in the cutting area of ​​the tool disc, and it is easy to cause poor cutting. It is difficult to meet the requirements for high surface quality of the workpiece. Among the existing patents, the Chinese patent document with application number 01804080.2 discloses a tool for cutting processing, including a rotatable tool head having an outer shell surface extending rotationally symmetrically around a central rotating geometric axis and an end face extending perpendicular to the axis, and a plurality of tangentially spaced cutting blades, which are connected to the chip grooves formed in the circumferential edge portion of the transition portion between the outer shell surface and the end face. The tool head includes, on the one hand, an internal central main conduit for receiving cooling and / or lubricating fluid from the outside, and on the other hand, a plurality of branch pipes corresponding to the plurality of cutting blades and chip grooves. These branch pipes are used to separately guide the fluid out of the main conduit and flow it to different cutting blades. The main conduit is provided with a plurality of branches corresponding to the plurality of cutting blades and the chip grooves. The pipe extends to and leads to the end face, and each individual branch pipe is formed by a groove formed in the end face and open to the outside at least in the initial part, the groove extending from the port of the main pipe to each chip groove, and extending to the outer end located in front of the cutting blade along the rotation direction of the tool; a device is provided in the area between the main pipe and the groove, which is used to deflect the axial fluid flow passing through the main pipe into a transverse local flow flowing to the groove; the device includes a plate integral with the sleeve, the sleeve having a plurality of tangentially spaced holes near the plate; and an internal thread for cooperating with an external thread on the head of a tubular screw, the tubular screw allows the fluid flow to pass through it and is used to fix the tool in the tool holder. The structure of this patent document is complex, the number of parts is large, and it is inconvenient to disassemble and maintain. Therefore, the defects are very obvious, and a solution is urgently needed. Utility Model Content

[0003] In order to solve the above technical problems, the purpose of the utility model is to provide a coolant spray cover for a machine-clamped tool and a machine-clamped tool.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A coolant spray cover for a machine-clamped tool comprises a shaft rod, a positioning mounting block and a cover plate which are coaxially connected in sequence; an outer guide cone is arranged on the side of the cover plate close to the positioning mounting block; a liquid passing hole is arranged axially of the shaft rod; a plurality of diversion holes are arranged radially of the positioning mounting block; the plurality of diversion holes are all connected to the liquid passing hole; an outer side wall of an end of the shaft rod away from the positioning mounting block is provided with an external thread; a screw hole is recessed on the outer side surface of the cover plate; the maximum diameter of the cover plate is larger than the diameter of the positioning mounting block; and the diameter of the positioning mounting block is larger than the diameter of the shaft rod.

[0006] Furthermore, a plurality of diversion holes are arranged in a ring array around the central axis of the positioning mounting block.

[0007] The utility model also provides a machine-clamped tool, including a tool disc and a plurality of blades arranged in a circular array on the peripheral side of the tool disc, and also includes the above-mentioned coolant spray cover, the axial direction of the tool disc is coaxially connected from top to bottom in sequence with a tool handle hole, an axial hole, a mounting hole and a receiving hole, the shaft rod of the coolant spray cover extends into the tool handle hole through the axial hole, the positioning mounting block is received in the mounting hole, the cover plate is received in the receiving hole, the inner wall of the receiving hole is provided with an inner guide cone surface, the outer guide cone surface and the inner guide cone surface are arranged to form a spray flow channel, the outer side wall of the positioning mounting block and the inner wall of the mounting hole are arranged to form a liquid outlet space, and the diversion hole is connected with the spray flow channel via the liquid outlet space.

[0008] Furthermore, the cutter disc is provided with a plurality of cooling channels in a circular array, and the plurality of cooling channels are respectively provided corresponding to the plurality of blades. The cooling channels are arranged at an angle, one end of the cooling channel is connected to the tool handle hole, and one end of the cooling channel passes through the outer wall of the cutter disc and faces the corresponding blade.

[0009] Furthermore, a positioning groove is recessed at one end of the cutter disc away from the blade, and the positioning groove is communicated with the handle hole.

[0010] Furthermore, a liquid outlet end of the cooling channel is rotatably connected with a spray ball.

[0011] The beneficial effects of the utility model are as follows: in actual application, the coolant spray cap is installed from the bottom of the cutter disc, the tool handle is inserted into the tool handle hole, and the external thread of the shaft rod is threadedly connected with the threaded hole in the inner hole of the tool handle to fix the cutter disc on the tool handle, the liquid hole of the shaft rod is connected with the inner hole of the tool handle, and the coolant is introduced into the liquid hole. The coolant is diverted to the liquid outlet space through multiple diversion holes, and the coolant in the liquid outlet space is sprayed outward along the bottom edge of the cutter disc in a ring shape along the liquid spray channel, which can not only cool the workpiece and the blade, but also flush away the waste chips in the cutting area of ​​the cutter disc. Among them, the screw hole is used for the insertion of the disassembly and assembly tool to screw the coolant spray cap, so as to facilitate the disassembly and assembly of the coolant spray cap. The utility model has a simple structure, and the coolant spray cap with an integrated structure can not only output a large flow of coolant, has a good cooling effect, and is conducive to flushing away waste chips, but also can fix the cutter disc, and is convenient for disassembly and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural schematic diagram of the coolant spray cover of the utility model.

[0013] Figure 2 It is a three-dimensional structural schematic diagram of the coolant spray cover of the utility model from another perspective.

[0014] Figure 3 It is a three-dimensional structural schematic diagram of the machine-clamped tool of the utility model.

[0015] Figure 4 It is a cross-sectional view of the machine-clamped tool of the utility model.

[0016] Description of reference numerals:

[0017] 1. Shaft; 2. Positioning and mounting block; 3. Cover plate; 4. External guide cone; 5. Liquid hole; 6. Diverter hole; 7. External thread; 8. Screw hole; 9. Cutter head; 10. Blade; 11. Cutter handle hole; 12. Shaft hole; 13. Mounting hole; 14. Accommodation hole; 15. Internal guide cone; 16. Cooling channel; 17. Positioning groove; 18. Injection ball. DETAILED DESCRIPTION

[0018] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with embodiments and drawings. The contents mentioned in the implementation modes are not intended to limit the present invention.

[0019] like Figures 1 to 4 As shown, the utility model provides a coolant spray cover for a machine-clamped tool, which includes a shaft rod 1, a positioning mounting block 2 and a cover plate 3 coaxially connected in sequence, an outer guide cone 4 is provided on the side of the cover plate 3 close to the positioning mounting block 2, a liquid through hole 5 is axially provided with the shaft rod 1, a plurality of diversion holes 6 are radially provided with the positioning mounting block 2, and the plurality of diversion holes 6 are all connected with the liquid through hole 5, an outer side wall of an end of the shaft rod 1 away from the positioning mounting block 2 is provided with an external thread 7, a screw hole 8 is recessed on the outer side surface of the cover plate 3, the maximum diameter of the cover plate 3 is larger than the diameter of the positioning mounting block 2, and the diameter of the positioning mounting block 2 is larger than the diameter of the shaft rod 1.

[0020] The utility model also provides a machine-clamped tool, including a tool disc 9 and a plurality of blades 10 arranged in a circular array on the peripheral side of the tool disc 9, and also including the above-mentioned coolant spray cover. The tool disc 9 is axially and coaxially connected with a handle hole 11, an axial hole 12, a mounting hole 13 and a receiving hole 14 in sequence from top to bottom. The shaft 1 of the coolant spray cover extends into the tool disc hole 11 through the axial hole 12, the positioning mounting block 2 is received in the mounting hole 13, the cover plate 3 is received in the receiving hole 14, the inner wall of the receiving hole 14 is provided with an inner guide cone 15, the outer guide cone 4 and the inner guide cone 15 are arranged to form a spray flow channel, the outer side wall of the positioning mounting block 2 and the inner wall of the mounting hole 13 are arranged to form a liquid outlet space, and the diversion hole 6 is connected with the spray flow channel via the liquid outlet space.

[0021] In actual application, the coolant spray cap is installed from the bottom of the cutter disc 9, the tool handle is inserted into the tool handle hole 11, and the external thread 7 of the shaft rod 1 is threadedly connected with the threaded hole in the inner hole of the tool handle to fix the cutter disc 9 on the tool handle. The liquid hole 5 of the shaft rod 1 is connected with the inner hole of the tool handle, and the coolant is introduced into the liquid hole 5. The coolant is diverted to the liquid outlet space through multiple diversion holes 6. The coolant in the liquid outlet space is sprayed outward along the bottom edge of the cutter disc 9 in a ring shape along the liquid spray channel, which can not only cool the workpiece and the blade 10, but also flush away the waste chips in the cutting area of ​​the cutter disc 9. Among them, the screw hole 8 is used for the insertion of the disassembly and assembly tool to screw the coolant spray cap, so as to facilitate the disassembly and assembly of the coolant spray cap. The utility model has a simple structure, and the coolant spray cap with an integrated structure can not only output a large flow of coolant, has a good cooling effect, and is conducive to flushing away waste chips, but also can fix the cutter disc 9, and is convenient for disassembly and maintenance.

[0022] In this embodiment, a plurality of flow diversion holes 6 are arranged in a ring array around the central axis of the positioning mounting block 2. This structural design makes the coolant distribution more uniform.

[0023] In this embodiment, the cutter head 9 is provided with a plurality of cooling channels 16 in an annular array, and the plurality of cooling channels 16 are respectively provided in one-to-one correspondence with the plurality of blades 10, and the cooling channels 16 are provided obliquely, and one end of the cooling channel 16 is communicated with the tool handle hole 11, and one end of the cooling channel 16 passes through the outer wall of the cutter head 9 and faces the corresponding blade 10. In actual application, coolant is introduced into the plurality of cooling channels 16 in the tool handle hole 11, and the coolant in the cooling channel 16 is sprayed on the workpiece and the blade 10 to cool the workpiece and the blade 10.

[0024] In this embodiment, a positioning groove 17 is formed at one end of the cutter disc 9 away from the blade 10, and the positioning groove 17 is connected to the handle hole 11. In practical applications, the positioning block of the handle fits the positioning groove 17 of the cutter disc 9 so that the handle and the cutter disc 9 can be assembled stably.

[0025] In this embodiment, the liquid outlet end of the cooling channel 16 is rotatably connected to a spray ball 18. The coolant in the cooling channel 16 is ejected through the spray ball 18. The spray ball 18 can rotate relative to the cutter disc 9 to adjust the spray angle of the spray ball 18 so that the coolant can be accurately sprayed on the blade 10.

[0026] All technical features in this embodiment can be freely combined according to actual needs.

[0027] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. A coolant spray cover for a machine-clamped tool, characterized in that: The invention comprises a shaft (1), a positioning mounting block (2) and a cover plate (3) which are coaxially connected in sequence; an outer flow guide cone (4) is arranged on a side of the cover plate (3) close to the positioning mounting block (2); a liquid passing hole (5) is arranged in the axial direction of the shaft (1); a plurality of flow diversion holes (6) are arranged in the radial direction of the positioning mounting block (2); the plurality of flow diversion holes (6) are all connected to the liquid passing hole (5); an outer side wall of an end of the shaft (1) away from the positioning mounting block (2) is provided with an external thread (7); a screw hole (8) is recessed on the outer side surface of the cover plate (3); the maximum diameter of the cover plate (3) is greater than the diameter of the positioning mounting block (2); and the diameter of the positioning mounting block (2) is greater than the diameter of the shaft (1).

2. The coolant spray cover for a machine-clamped tool according to claim 1, characterized in that: A plurality of flow diversion holes (6) are arranged in a ring array around the central axis of the positioning installation block (2).

3. A machine-clamped tool, comprising a cutter disc (9) and a plurality of blades (10) arranged in a circular array on the circumference of the cutter disc (9), characterized in that: It also includes the coolant spray cover as described in claim 1 or 2, the axial direction of the cutter disc (9) is coaxially connected from top to bottom and is provided with a shank hole (11), an axial hole (12), a mounting hole (13) and a receiving hole (14), the shaft (1) of the coolant spray cover extends into the shank hole (11) through the axial hole (12), the positioning mounting block (2) is received in the mounting hole (13), the cover plate (3) is received in the receiving hole (14), the inner wall of the receiving hole (14) is provided with an inner guide cone surface (15), the outer guide cone surface (4) and the inner guide cone surface (15) are arranged to form a spray channel, the outer side wall of the positioning mounting block (2) and the inner wall of the mounting hole (13) are arranged to form a liquid outlet space, and the diversion hole (6) is connected with the spray channel via the liquid outlet space.

4. A machine-clamped tool according to claim 3, characterized in that: The cutter disc (9) is provided with a plurality of cooling channels (16) in an annular array, the plurality of cooling channels (16) are respectively provided in one-to-one correspondence with the plurality of blades (10), the cooling channels (16) are provided at an angle, one end of the cooling channel (16) is connected to the handle hole (11), and one end of the cooling channel (16) passes through the outer wall of the cutter disc (9) and faces the corresponding blade (10).

5. The machine-clamped tool according to claim 3, characterized in that: A positioning groove (17) is recessed at one end of the cutter disc (9) away from the blade (10), and the positioning groove (17) is communicated with the handle hole (11).

6. The machine-clamped tool according to claim 4, characterized in that: The liquid outlet end of the cooling channel (16) is rotatably connected to a spray ball (18).

Images