A kind of reverse chip removal reamer

Abstract

The present invention relates to the technical field of cutting tools, and discloses a reverse chip removal reamer, comprising a reamer body, and also comprising a flushing assembly and a swinging mechanism arranged inside the reamer body; a water inlet channel is provided inside the reamer body, and a sealing mechanism for sealing flushing water is arranged inside the water inlet channel; a plurality of reamer blades for cutting hole-shaped parts are arranged on the end of the reamer body, and the reamer body has a plurality of large non-communicating chip removal grooves extending from the end to the inside of the end. The reverse chip removal reamer sprays coolant to the cutting edge of the reamer blade through a flushing ball, and can flush the chips out of the part from the processing position in the opposite direction of the feed, so that the chips are not easily left in the hole of the processed part, eliminating the step of processing the chips inside the part, further improving the work efficiency, and at the same time reducing the risk of chips scratching the processed surface and chips stuck in the reamer body, thereby improving the yield rate of the part.

Description

Technical Field

[0001] The invention belongs to the technical field of tool tools, and in particular relates to a reverse chip removal type reamer. Background Art

[0002] A reamer is a rotary tool with one or more teeth used to remove a thin layer of metal from the surface of a machined hole. It is a rotary finishing tool with a straight or spiral edge, mainly used for expanding or repairing holes. Since the reamer finishes the inner surface of the formed hole, the cutting amount is small and the machining accuracy requirements are usually higher than those of a drill. It can be operated manually or installed on a drilling machine.

[0003] At present, most of the existing closed hole-type parts are processed by conventional forming reamers, which generally discharge chips and easily fall into the closed hole. The space in the closed hole is small and it is extremely inconvenient to clean, resulting in problems such as difficulty in cleaning the processed products or blockage of the through holes in some parts. In addition, chip blockage may cause the tool to change its path during the feeding process, affect the shape and position tolerance of the hole, reduce the life and reliability of the tool, or cause damage to the tool; therefore, there are deficiencies and cannot meet the user's usage needs. Therefore, it is necessary to further improve it.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a reverse chip removal reamer is provided to achieve a more practical purpose. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a reverse chip removal reamer, which is achieved by the following specific technical means:

[0006] A reverse chip removal reamer comprises a reamer body, and also comprises a flushing assembly and a swing mechanism arranged inside the reamer body;

[0007] A water inlet channel is provided inside the reamer body, and a sealing mechanism for sealing flushing water is provided inside the water inlet channel;

[0008] The end of the reamer body is provided with a plurality of reamer blades for cutting hole-shaped parts, and the reamer body has a plurality of large chip grooves extending from the end to the inside of the end, each large chip groove is connected to a small chip groove at the end, and the large chip grooves are located between the reamer blades;

[0009] A flushing hole is provided on the side wall of the reamer body, and the flushing hole is located on the large chip removal groove, and the flushing assembly and the swing mechanism are both located in the flushing hole. Flushing water is transmitted to the flushing hole along the water inlet channel, driving the swing mechanism to knock the flushing assembly up and down, so that the flushing assembly swings up and down to flush and remove chips at different positions.

[0010] As a further description of the above technical solution: by spraying coolant to the cutting edge of the reamer blade through a flushing ball, the chips can be flushed out of the part from the processing position along the opposite direction of the feed, so that the chips are not easily retained in the hole of the processed part, eliminating the step of processing the chips inside the part, further improving work efficiency, and at the same time reducing the risk of chips scratching the processed surface and chips getting stuck in the reamer body, thereby improving the yield of parts, and there is a flushing hole and a flushing ball corresponding to each reamer blade, so that it can play a role of cooling while flushing and removing chips, thereby effectively improving its cooling efficiency and chip removal effect.

[0011] Furthermore, the sealing mechanism comprises a sealing seat, the outer wall of the sealing seat is fixedly assembled with the inner wall of the water inlet channel, and a first through hole for flushing water to flow is opened in the middle of the sealing seat;

[0012] A sealing plate is arranged at the bottom of the sealing seat, and a plurality of second through holes are opened on the sealing plate. The sealing seat is in close contact with the sealing plate and the first through holes and the second through holes are staggered with each other.

[0013] As a further description of the above technical solution: when the intake of coolant stops, the coolant in the water inlet channel can be sealed by the fitting contact between the sealing plate and the sealing seat, and the escape of the coolant can be prevented by the tight closure of the sealing plate and the sealing seat.

[0014] Furthermore, the sealed seat is provided with a first groove and a second groove, and the first groove is located at the outer periphery of the second groove. A limiting ring and an elastic corrugated rubber ring are fixedly assembled on the upper side of the sealed plate. The limiting ring is located in the first groove, and the elastic corrugated rubber ring is located in the second groove.

[0015] As a further description of the above technical solution: the setting of the elastic corrugated rubber ring can play a role in automatically resetting the sealing plate, and at the same time, the limiting ring can be used to slide in the first groove to play a role in limiting the sealing plate.

[0016] Furthermore, a stabilizing slide block is fixedly mounted on the side wall of the limiting ring, a stabilizing slide groove is formed on the inner wall of the first groove, and the stabilizing slide block is located in the stabilizing slide groove.

[0017] As a further description of the above technical solution: the sealing plate drives the limit ring to move up and down, thereby driving the stabilizing slider to move synchronously, and driving the stabilizing slider to slide in the stabilizing slide groove, thereby achieving the effect of improving the stability of the sealed plate when moving.

[0018] Furthermore, a magnet assembly is provided inside the first groove, and the magnet assembly includes a first magnet ring and a second magnet ring. The first magnet ring is fixedly assembled on the top of the inner wall of the first groove, and the second magnet ring is fixedly assembled on the upper surface of the limiting ring. The opposite sides of the first magnet ring and the second magnet ring are magnetically attractive to each other.

[0019] As a further description of the above technical solution: when the sealing plate and the sealing seat are in contact with each other, the first magnet ring and the second magnet ring are attracted to each other, thereby enhancing the sealing performance of the sealing plate and the sealing seat and further preventing the escape of the coolant.

[0020] Further, the flushing assembly includes a flushing ball rotatably mounted in the flushing hole of the reamer body, the outer wall of the flushing ball is fixedly mounted with a movable pin, and the flushing ball is rotatably mounted with the flushing hole of the reamer body through the movable pin;

[0021] The flushing ball is provided with a first flushing hole, a second flushing hole and a third flushing hole from the inside to the outside of the reamer cutter body.

[0022] As a further description of the above technical solution: the coolant is sprayed outward through the flushing ball, directly onto the cutting edge of the reamer blade, and the cuttings generated during processing are discharged outward through the large chip groove and the small chip groove. In this way, the cuttings are not easily retained in the hole of the processed part, thereby reducing the working time for cleaning the part hole and improving work efficiency.

[0023] Furthermore, the diameter of the first flushing hole is larger than the diameter of the second flushing hole, and the connection between the first flushing hole and the second flushing hole is arranged to be chamfered;

[0024] The diameter of the second flushing hole is greater than the diameter of the third flushing hole, and the connection between the second flushing hole and the third flushing hole is arranged to be chamfered.

[0025] As a further description of the above technical solution: since the inner diameter of the first flushing hole is larger than the inner diameter of the second flushing hole, and the inner diameter of the second flushing hole is larger than the inner diameter of the third flushing hole, when the coolant passes through the second flushing hole and the smaller inner diameter of the third flushing hole, the circulation speed of the coolant will gradually increase due to the gradual decrease in cross-sectional area, thereby effectively accelerating the circulation speed of the coolant and further improving the efficiency of the coolant in flushing the chips.

[0026] Furthermore, the swing mechanism includes a movable shaft fixedly mounted on the inner wall of the flushing hole of the reamer body, a movable sleeve movably mounted on the movable shaft, two swing plates fixedly mounted on the side of the movable sleeve facing the flushing ball, a swing member fixedly mounted on the side of the swing plate away from the movable sleeve, and the swing member is located in the first flushing hole.

[0027] As a further description of the above technical solution: when the coolant flows, it impacts the two swing plates, causing the swing plates to swing up and down, while driving the swing parts to knock the flushing balls, so that the flushing ball liquid forms an up and down reciprocating rotation, thereby achieving the effect of autonomously changing the flushing direction, and effectively enhancing the flushing effect on the chips.

[0028] Furthermore, the swing mechanism also includes an elastic component, which includes a fixed plate fixedly assembled on the movable shaft, and an elastic pad is fixedly connected between the fixed plate and the swing member.

[0029] As a further description of the above technical solution: by setting the elastic pad, the swing frequency of the swing plate can be accelerated under the action of elastic force, thereby accelerating the swing rate of the flushing ball.

[0030] Furthermore, the end of the reamer body is connected to a threaded plug via a thread, and a semicircular groove is formed on the top of the threaded plug.

[0031] As a further description of the above technical solution: the provision of the threaded plug is beneficial to the inspection and maintenance of the inner wall parts of the device.

[0032] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0033] 1. The reverse chip removal reamer sprays coolant to the cutting edge of the reamer blade through a flushing ball, so that the chips can be flushed out of the part from the processing position in the opposite direction of the feed, so that the chips are not easily retained in the hole of the processed part, eliminating the step of processing the chips inside the part, further improving work efficiency, and at the same time reducing the risk of chips scratching the processed surface and chips stuck in the reamer body, thereby improving the yield of parts. In addition, there is a flushing hole and a flushing ball corresponding to each reamer blade, so that it can play a cooling role while flushing and removing chips, thereby effectively improving its cooling efficiency and chip removal effect.

[0034] 2. The anti-chip removal reamer, through the cooperation of the flushing component and the swinging mechanism, utilizes the flow of coolant to impact the two swinging plates, causing the swinging plates to swing up and down, and accelerates the swinging frequency of the swinging plates under the action of the elastic pad. At the same time, the swinging part is used to knock the flushing ball, causing the flushing ball liquid to form an up and down reciprocating rotation, thereby achieving the effect of autonomously changing the flushing direction, effectively enhancing the flushing effect of the chips, and reducing the risk of chip jamming in the reamer body. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0036] Figure 1 It shows a schematic diagram of an overall three-dimensional structure provided according to an embodiment of the present invention;

[0037] Figure 2 A schematic diagram of a local structure of a reamer body provided according to an embodiment of the present invention is shown;

[0038] Figure 3 A schematic diagram of the installation structure of a reamer body and a sealing assembly according to an embodiment of the present invention is shown;

[0039] Figure 4 It shows a schematic diagram of the installation structure of the reamer body, the flushing assembly and the swing mechanism provided in an embodiment of the present invention;

[0040] Figure 5 The embodiment of the present invention provides Figure 3 The enlarged schematic diagram of part A in the middle;

[0041] Figure 6 The schematic diagram of the local structure of the sealing assembly provided in the embodiment of the present invention is shown. Figure 1 ;

[0042] Figure 7 The schematic diagram of the local structure of the sealing assembly provided in the embodiment of the present invention is shown. Figure 2 ;

[0043] Figure 8 It shows a schematic diagram of the installation structure of the sealing plate, the limiting ring and the elastic corrugated rubber ring provided in an embodiment of the present invention;

[0044] Fig. 9 The embodiment of the present invention provides Figure 7 The enlarged schematic diagram of part B in the middle;

[0045] Fig.10 A schematic diagram of the installation structure of the flushing assembly and the swing mechanism provided in an embodiment of the present invention is shown;

[0046] Fig.11 A partial structural schematic diagram of a flushing assembly provided according to an embodiment of the present invention is shown;

[0047] Fig.12 A schematic structural diagram of a swing mechanism provided according to an embodiment of the present invention is shown.

[0048] Legend:

[0049] 10. reamer body; 101. water inlet channel; 11. reamer blade; 12. large chip groove; 13. small chip groove;

[0050] 20. Sealing mechanism; 21. Sealing seat; 211. First through hole; 212. First groove; 213. Second groove; 22. Sealing plate; 221. Second through hole; 23. Limiting ring; 231. Stable slider; 24. Elastic corrugated rubber ring; 25. Magnet assembly; 251. First magnet ring; 252. Second magnet ring; 26. Stable slide groove;

[0051] 30. Threaded plug;

[0052] 40. Flushing assembly; 41. Flushing ball; 42. Movable pin; 43. First flushing hole; 44. Second flushing hole; 45. Third flushing hole;

[0053] 50. Swinging mechanism; 51. Movable shaft; 52. Movable sleeve; 53. Swinging plate; 54. Swinging member; 55. Elastic component; 551. Fixed plate; 552. Elastic pad. DETAILED DESCRIPTION

[0054] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0055] See also Figures 1 to 12A reverse chip removal reamer comprises a reamer body 10, and also comprises a flushing assembly 40 and a swing mechanism 50 arranged inside the reamer body 10; a water inlet channel 101 is provided inside the reamer body 10, and a sealing mechanism 20 for sealing flushing water is provided inside the water inlet channel 101; a plurality of reamer blades 11 for cutting hole-shaped parts are provided on the end of the reamer body 10, and the reamer body 10 has a plurality of large chip grooves 12 extending from the end to the end, each of which is connected to a small chip groove 13 at its end, and the large chip grooves 12 are all located between the reamer blades 11; a flushing hole is provided on the side wall of the reamer body 10, and the flushing hole is located on the large chip groove 12, and the flushing assembly 40 and the swing mechanism 50 are both located in the flushing hole, through The flushing water is transmitted to the flushing hole along the water inlet channel 101, driving the swing mechanism 50 to knock the flushing component 40 up and down, so that the flushing component 40 swings up and down to flush and remove chips at different positions; the coolant is sprayed to the cutting edge of the reamer blade 11 through the flushing ball 41, so that the chips can be flushed out of the part from the processing position along the opposite direction of the feed, so that the chips are not likely to remain in the hole of the processed part, eliminating the step of processing the chips inside the part, further improving work efficiency, and reducing the risk of chips scratching the processed surface and chips stuck in the reamer body 10, thereby improving the yield of parts, and there is a flushing hole and a flushing ball 41 corresponding to each reamer blade 11, so that it can play a cooling role while flushing and removing chips, thereby effectively improving its cooling efficiency and chip removal effect.

[0056] See also Figure 6 to Figure 7 The sealing mechanism 20 includes a sealing seat 21, the outer wall of the sealing seat 21 is fixedly assembled with the inner wall of the water inlet channel 101, and a first through hole 211 for the circulation of flushing water is provided in the middle of the sealing seat 21; a sealing plate 22 is provided at the bottom of the sealing seat 21, and a plurality of second through holes 221 are provided on the sealing plate 22, and the sealing seat 21 is in close contact with the bottom of the sealing plate 22 so that the first through holes 211 and the second through holes 221 are staggered with each other; when the intake of coolant stops, the coolant in the water inlet channel 101 can be sealed by the close contact between the sealing plate 22 and the sealing seat 21, and the escape of the coolant can be prevented by the tight closure of the sealing plate 22 and the sealing seat 21.

[0057] See also Figures 6 to 9 A first groove 212 and a second groove 213 are provided on the closed seat 21, and the first groove 212 is located at the outer periphery of the second groove 213. A limiting ring 23 and an elastic corrugated rubber ring 24 are fixedly assembled on the upper side of the closed plate 22. The limiting ring 23 is located in the first groove 212, and the elastic corrugated rubber ring 24 is located in the second groove 213. The setting of the elastic corrugated rubber ring 24 can automatically reset the closed plate 22, and at the same time, the limiting ring 23 can be used to slide in the first groove 212 to limit the closed plate 22.

[0058] See also Figures 7 to 9 A stabilizing slider 231 is fixedly installed on the side wall of the limiting ring 23, a stabilizing groove 26 is opened on the inner wall of the first groove 212, and the stabilizing slider 231 is located in the stabilizing groove 26; the limiting ring 23 is driven by the closed plate 22 to move up and down, and the stabilizing slider 231 is driven to move synchronously, so that the stabilizing slider 231 slides in the stabilizing groove 26, thereby achieving the effect of improving the stability of the closed plate 22 when moving.

[0059] See also Figures 7 to 9 A magnet assembly 25 is arranged inside the first groove 212, and the magnet assembly 25 includes a first magnet ring 251 and a second magnet ring 252. The first magnet ring 251 is fixedly assembled on the top of the inner wall of the first groove 212, and the second magnet ring 252 is fixedly assembled on the upper surface of the limiting ring 23. The opposite sides of the first magnet ring 251 and the second magnet ring 252 are magnetically attracted to each other; when the closed plate 22 and the closed seat 21 are in contact with each other, the first magnet ring 251 and the second magnet ring 252 are adsorbed to each other, thereby enhancing the sealing performance of the closed plate 22 and the closed seat 21, and further preventing the escape of the coolant.

[0060] See also Figures 3 to 5 , Figure 10 to Figure 11 The flushing assembly 40 includes a flushing ball 41 rotatably assembled in the flushing hole of the reamer body 10, and a movable pin 42 is fixedly assembled on the outer wall of the flushing ball 41. The flushing ball 41 is rotatably mounted with the flushing hole of the reamer body 10 through the movable pin 42; a first flushing hole 43, a second flushing hole 44 and a third flushing hole 45 are respectively opened in the flushing ball 41 from the inside to the outside of the reamer body 10; the coolant is sprayed outward through the flushing ball 41, directly sprayed to the cutting edge of the reamer blade 11, and the cuttings generated during processing are discharged outward through the large chip groove 12 and the small chip groove 13. In this way, the cuttings are not easily left in the hole of the processed part, thereby reducing the working time for cleaning the part hole and improving work efficiency.

[0061] See also Fig.11, the diameter of the first flushing hole 43 is larger than the diameter of the second flushing hole 44, and the connection between the first flushing hole 43 and the second flushing hole 44 is set to be chamfered; the diameter of the second flushing hole 44 is larger than the diameter of the third flushing hole 45, and the connection between the second flushing hole 44 and the third flushing hole 45 is set to be chamfered; in the process of the coolant passing through the flushing ball 41, the coolant flows from the first flushing hole 43 to the second flushing hole 44, and then flows from the second flushing hole 44 to the first flushing hole 43. Since the inner diameter of the first flushing hole 43 is larger than the inner diameter of the second flushing hole 44, and the inner diameter of the second flushing hole 44 is larger than the inner diameter of the third flushing hole 45, when the coolant passes through the smaller inner diameters of the second flushing hole 44 and the third flushing hole 45, the circulation speed of the coolant will gradually increase due to the gradual decrease in cross-sectional area, thereby effectively accelerating the circulation speed of the coolant, thereby improving the flushing efficiency of the coolant on the chips.

[0062] See also Figures 3 to 5 , Figures 10 to 12 The swing mechanism 50 includes a movable shaft 51 fixedly mounted on the inner wall of the flushing hole of the reamer body 10, and a movable sleeve 52 is movably mounted on the movable shaft 51. Two swing plates 53 are fixedly mounted on the side of the movable sleeve 52 facing the flushing ball 41, and a swing member 54 is fixedly mounted on the side of the swing plate 53 away from the movable sleeve 52, and the swing member 54 is located in the first flushing hole 43; since the coolant has variability when flowing, its shape will continue to change, the coolant will contact the swing plate 53 and impact the two swing plates 53, so that the swing plate 53 swings up and down, and the swing frequency of the swing plate 53 is accelerated under the action of the elastic pad 552, and the swing plate 53 swings up and down while driving the swing member 54 to knock the flushing ball 41, and under the action of the movable pin 42, the flushing ball 41 forms a reciprocating rotation up and down, thereby achieving the effect of autonomously changing the flushing direction, effectively enhancing the flushing effect of the chips.

[0063] See also Figure 11 to Figure 12 The swing mechanism 50 also includes an elastic component 55, which includes a fixed plate 551 fixedly assembled on the movable shaft 51, and an elastic pad 552 fixedly connected between the fixed plate 551 and the swing member 54; through the setting of the elastic pad 552, the swing frequency of the swing plate 53 can be accelerated under the action of elastic force, thereby accelerating the swing rate of the flushing ball 41.

[0064] See also Figure 3 to Figure 4 The end of the reamer body 10 is connected to a threaded plug 30 through a thread, and a semicircular groove is provided on the top of the threaded plug 30; the provision of the threaded plug 30 is beneficial to the inspection of the inner wall parts of the device, and at the same time, by providing a semicircular groove on the top of the threaded plug 30, the coolant flowing through the water inlet channel 101 can be guided to the flushing hole on the side wall of the reamer body 10.

[0065] The specific usage and function of this embodiment are as follows:

[0066] Working principle: When in use, the reamer body is driven by the processing machine to perform hole enlargement or hole repair processing, and the reamer blade 11 is used to process the processed parts. At the same time, the chips generated during processing are discharged upward along the rotation direction of the large chip groove 12. In the process of processing, the coolant is passed into the interior of the reamer body 10 along the feed direction through the water inlet channel 101. At the same time, the coolant impacts the closed plate 22 along the first through hole 211. The closed plate 22 is pushed to move based on the force of the coolant impact, and the elastic corrugated rubber ring 24 is pulled at the same time, so that the closed plate 2 2 is separated from the closed seat 21, and at the same time, the coolant passes through the gap between the closed seat 21 and the closed plate 22, and is continuously fed through the second through hole 221. The coolant flows through the flushing hole and the flushing ball 41 on the side wall of the reamer body 10, and is sprayed outward through the flushing ball 41, directly sprayed to the cutting edge of the reamer blade 11, and the cuttings generated during processing are discharged outward through the large chip groove 12 and the small chip groove 13. In this way, the cuttings are not easy to remain in the hole of the processed part, thereby reducing the working time of cleaning the part hole and improving the working efficiency;

[0067] In addition, when the coolant passes through the flushing ball 41, the coolant flows from the first flushing hole 43 to the second flushing hole 44, and then flows from the second flushing hole 44 to the first flushing hole 43. Since the inner diameter of the first flushing hole 43 is larger than the inner diameter of the second flushing hole 44, and the inner diameter of the second flushing hole 44 is larger than the inner diameter of the third flushing hole 45, when the coolant passes through the second flushing hole 44 and the smaller inner diameter of the third flushing hole 45, the flow rate of the coolant will gradually increase due to the gradual decrease in the cross-sectional area, thereby effectively accelerating the flow rate of the coolant, thereby improving the flushing efficiency of the coolant for the chips. Moreover, through this arrangement, when machining parts, the coolant can be sprayed out of the parts from the machining position in the opposite direction of the feed through the flushing ball 41, so that the chips are not easily retained in the hole of the machined part, eliminating the step of processing the chips inside the part, further improving the work efficiency, and at the same time reducing the risk of chips scratching the machined surface and chips stuck in the reamer body 10, thereby improving the yield rate of the parts.

[0068] In the process of the coolant flowing through the flushing ball 41 along the water inlet channel 101, due to the variability of the coolant flow, its shape will continue to change, and the coolant will contact the swing plate 53 and impact the two swing plates 53, thereby causing the swing plate 53 to swing up and down, and under the action of the elastic pad 552, the swing frequency of the swing plate 53 is accelerated, and the swing plate 53 swings up and down while driving the swing member 54 to knock the flushing ball 41, and under the action of the movable pin 42, the flushing ball 41 forms an up and down reciprocating rotation state, thereby achieving the effect of autonomously changing the flushing direction, effectively enhancing the flushing effect of the chips, and reducing the risk of chip jamming in the reamer body 10; and there is a flushing hole corresponding to each reamer blade 11, so that it can play a role of cooling while flushing and removing chips, thereby effectively improving its cooling efficiency and chip removal effect.

[0069] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A reverse chip removal reamer, comprising a reamer body (10), characterized in that: It also includes a flushing assembly (40) and a swing mechanism (50) arranged inside the reamer body (10); A water inlet channel (101) is provided inside the reamer body (10), and a sealing mechanism (20) for sealing flushing water is provided inside the water inlet channel (101); The end of the reamer body (10) is provided with a plurality of reamer blades (11) for cutting hole-shaped parts. The reamer body (10) has a plurality of incommunicative large chip grooves (12) extending from the end to the inside of the end. The end tail of each large chip groove (12) is connected to a small chip groove (13), and the large chip grooves (12) are all located between the reamer blades (11). A flushing hole is provided on the side wall of the reamer body (10), and the flushing hole is located on the large chip removal groove (12), and the flushing assembly (40) and the swing mechanism (50) are both located in the flushing hole. Flushing water is transmitted to the flushing hole along the water inlet channel (101), and the swing mechanism (50) is driven to knock the flushing assembly (40) up and down, so that the flushing assembly (40) swings up and down to flush and remove chips at different positions.

2. The reverse chip removal reamer according to claim 1, characterized in that: The sealing mechanism (20) comprises a sealing seat (21), the outer wall of the sealing seat (21) is fixedly assembled with the inner wall of the water inlet channel (101), and a first through hole (211) for flushing water to flow is opened in the middle of the sealing seat (21); A sealing plate (22) is provided at the bottom of the sealing seat (21), and a plurality of second through holes (221) are provided on the sealing plate (22). The sealing seat (21) is in close contact with the sealing plate (22) so that the first through holes (211) and the second through holes (221) are staggered with each other.

3. The reverse chip removal reamer according to claim 2, characterized in that: The sealed seat (21) is provided with a first groove (212) and a second groove (213), and the first groove (212) is located on the outer periphery of the second groove (213). A limit ring (23) and an elastic corrugated rubber ring (24) are fixedly assembled on the upper side of the sealed plate (22), the limit ring (23) is located in the first groove (212), and the elastic corrugated rubber ring (24) is located in the second groove (213).

4. The reverse chip removal reamer according to claim 3, characterized in that: A stabilizing slide block (231) is fixedly mounted on the side wall of the limiting ring (23), a stabilizing slide groove (26) is provided on the inner wall of the first groove (212), and the stabilizing slide block (231) is located in the stabilizing slide groove (26).

5. The reverse chip removal reamer according to claim 3, characterized in that: A magnet assembly (25) is arranged inside the first groove (212), and the magnet assembly (25) comprises a first magnet ring (251) and a second magnet ring (252), wherein the first magnet ring (251) is fixedly mounted on the top of the inner wall of the first groove (212), and the second magnet ring (252) is fixedly mounted on the upper surface of the limiting ring (23), and the first magnet ring (251) and the second magnet ring (252) have opposite surfaces that are magnetically attractive to each other.

6. The reverse chip removal reamer according to claim 1, characterized in that: The flushing assembly (40) comprises a flushing ball (41) rotatably mounted in the flushing hole of the reamer body (10); a movable pin (42) is fixedly mounted on the outer wall of the flushing ball (41); the flushing ball (41) is rotatably mounted with the flushing hole of the reamer body (10) via the movable pin (42); The flushing ball (41) is provided with a first flushing hole (43), a second flushing hole (44) and a third flushing hole (45) from the inside to the outside of the reamer body (10).

7. The reverse chip removal reamer according to claim 6, characterized in that: The diameter of the first flushing hole (43) is greater than the diameter of the second flushing hole (44), and the connection between the first flushing hole (43) and the second flushing hole (44) is arranged to be chamfered; The diameter of the second flushing hole (44) is greater than the diameter of the third flushing hole (45), and the connection between the second flushing hole (44) and the third flushing hole (45) is arranged to be chamfered.

8. The reverse chip removal reamer according to claim 6, characterized in that: The swing mechanism (50) comprises a movable shaft (51) fixedly mounted on the inner wall of the flushing hole of the reamer body (10); a movable sleeve (52) is movably mounted on the movable shaft (51); two swing plates (53) are fixedly mounted on the side of the movable sleeve (52) facing the flushing ball (41); a swing member (54) is fixedly mounted on the side of the swing plate (53) away from the movable sleeve (52); and the swing member (54) is located in the first flushing hole (43).

9. The reverse chip removal reamer according to claim 8, characterized in that: The swing mechanism (50) further comprises an elastic component (55), wherein the elastic component (55) comprises a fixed plate (551) fixedly mounted on the movable shaft (51), and an elastic pad (552) is fixedly connected between the fixed plate (551) and the swing member (54).

10. The reverse chip removal reamer according to claim 1, characterized in that: The end of the reamer body (10) is connected to a threaded plug (30) via a thread, and a semicircular groove is formed on the top of the threaded plug (30).

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