Combined boring cutter for deep hole machining

Abstract

The invention relates to the technical field of cutters, in particular to a combined boring cutter for deep hole machining, which comprises a cutter bar and a cutter bit, the inside of the cutter bar is movably inserted into the outer wall of the cutter bit, a second cavity is formed in the outer wall of the top of the cutter bar, and four guide rods are fixedly connected to the inner wall of the second cavity. Third sliding grooves are formed in the outer wall of the cutter bar, and the outer walls of one sides of the four third sliding grooves are connected with the outer wall of the second cavity in a penetrating mode; the device has the beneficial effects that when a guide ring is driven by a fixing ring to move to the position above a third sliding groove, a first fixing plate can be pushed into a fixing groove, so that the fixing groove is fixed, a table-shaped block can be fixed into a second cavity by fixing the fixing groove, and therefore connection of a tool bit and a tool bar is completed; the stability of the cutter in the working process is correspondingly ensured, the cutter bar and the cutter head are fixed and replaced conveniently through the arrangement of the fixing ring, and therefore the cutter replacement cost is reduced.

Description

Technical Field

[0001] The invention relates to the field of cutting tools, in particular to a combined boring tool for deep hole machining. Background Art

[0002] Combined boring tools can be divided into many types according to their structure and purpose, such as combined boring tools, combined boring machine heads, etc. These tools are widely used in mechanical processing, automobile parts manufacturing, aerospace and other fields to process the inner holes of various materials such as metals, plastics and ceramics.

[0003] In the prior art, the cutter head and the cutter rod are fixedly connected. When the cutter head is worn and needs to be replaced, the cutter head and the cutter rod need to be replaced together, thereby increasing the replacement cost of the cutter. Summary of the invention

[0004] The object of the present invention is to provide a combined boring tool for deep hole machining to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: the combined boring tool comprises: a tool rod and a tool head, the interior of the tool rod is movably connected to the outer wall of the tool head, the outer wall of the top of the tool rod is provided with a cavity 2, the inner wall of the cavity 2 is fixedly connected with four guide rods, the outer wall of the tool rod is provided with a slide groove 3, the outer walls of one side of the four slide grooves 3 are through-connected with the outer wall of the cavity 2, the outer wall of the tool rod is threadedly connected with a fixing ring, and the outer wall of the top of the fixing ring is fixedly connected with a guide ring.

[0006] Preferably, the outer wall of the bottom of the cutter head is fixedly connected to a trapezoidal block, the outer wall of the trapezoidal block is provided with a guide hole, the inside of the guide hole is movably connected to the outer wall of the guide rod, the outer wall of the bottom of the trapezoidal block is fixedly connected to a square block, and the outer wall of the square block is provided with a fixing groove.

[0007] Preferably, the interior of the four slide grooves three is fixedly connected with a fixed plate two, the interior of the slide groove three is slidably connected with a fixed plate one, a cavity one is opened inside the fixed plate one, the interior of the cavity one is slidably connected to the outer wall of the fixed plate two, a return spring three is fixedly connected to the outer wall of one side of the fixed plate two, the outer wall of one end of the return spring three is fixedly connected to the inner wall of the cavity one, the outer wall of one side of the fixed plate one is movably plugged into the interior of the fixed groove, and the outer wall of the other side of the fixed plate one is movably contacted with the inner wall of the fixed ring.

[0008] Preferably, a solution box is provided inside the knife rod near the bottom of cavity 2, a discharge port is provided below cavity 2, a blocking rod is movably inserted inside the discharge port, a reset spring 2 is fixedly connected to the outer wall of the top of one side of the blocking rod, the outer wall of the top of the reset spring 2 is fixedly connected to the upper part of the inner wall of the solution box, a socket is provided on the outer wall of the top of the blocking rod, and a semicircular elastic block is fixedly connected to the inner wall of the socket.

[0009] Preferably, a cylindrical groove is provided inside the cutter head, a second slide groove is provided on the inner wall of the cylindrical groove, a guide tube is slidably connected inside the cylindrical groove, sliders are fixedly connected on both sides of the outer wall of the guide tube, the outer wall of the slider is slidably connected to the inside of the second slide groove, a liquid inlet groove is provided below the outer wall of the guide tube, and a push block is fixedly connected to the outer wall of the bottom of the guide tube.

[0010] Preferably, the outer wall of the pushing block is fixedly connected with a semicircular groove, the outer wall of the pushing block is movably plugged into the inside of the socket, and the insides of the four semicircular grooves are movably contacted with the outer wall of the semicircular elastic block.

[0011] Preferably, a slag discharge hole is formed on the outer wall of the top of the cutter head, a cavity three is formed on the outer wall of the bottom of the slag discharge hole, a return spring one is fixedly connected to the interior of the cavity three, a baffle one is fixedly connected to the outer wall of the top of the return spring one, the outer wall of the baffle one is slidably connected to the interior of the cavity three, a push rod is fixedly connected to the outer wall of the top of the baffle one, a connecting rod is fixedly connected to the outer wall of one side of the push rod, the outer wall of the connecting rod is fixedly connected to the outer wall of the guide tube, a slide groove is formed on the outer wall of the top of the cutter head, and the interior of the slide groove one is in movably contact with the outer wall of the connecting rod.

[0012] Preferably, the outer wall at the top of the guide tube is fixedly connected with a guide shell, a plurality of outflow holes are opened on the top of the guide shell, the inside of the guide tube is fixedly connected with a mounting shell, and an arc groove is opened on the top of the guide shell.

[0013] Preferably, a rotating rod is rotatably connected to the lower part of the inner wall of the mounting shell, an arc-shaped plate is fixedly connected to the outer wall of the rotating rod, the outer wall of the arc-shaped plate is rotatably connected to the inner wall of the mounting shell, the outer wall of the rotating rod is fixedly connected to the mounting rod, a magnetic block is fixedly connected to the inside of the mounting rod, an iron sheet is fixedly connected to the inner wall of the arc-shaped groove, and the outer wall of the iron sheet is magnetically attracted to the outer wall of the magnetic block.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The present invention proposes a combined boring tool for deep hole processing. When the guide ring is driven by the fixed ring to move to the top of the slide groove three, the fixed plate one can be pushed into the inside of the fixed groove, thereby fixing the fixed groove. By fixing the fixed groove, the trapezoidal block can be fixed inside the cavity two, thereby completing the connection between the tool head and the tool rod, and correspondingly ensuring the stability of the tool during the working process. The setting of the fixed ring facilitates the fixation and replacement of the tool rod and the tool head, thereby reducing the cost of tool replacement. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a schematic diagram of the structure of the cutter head of the present invention; Figure 3 It is a schematic diagram of the tool bar structure of the present invention; Figure 4 For the present invention Figure 2 The enlarged structural diagram at A in the middle; Figure 5 For the present invention Figure 3 The enlarged structural diagram at B in the middle; Figure 6 This is a schematic diagram of the square block structure of the present invention; Figure 7 This is a schematic diagram of the fixing plate structure of the present invention; Figure 8 This is a schematic diagram of the mounting slot structure of the present invention; Fig. 9 This is a schematic diagram of the structure of an I-shaped rubber block of the present invention; Fig.10 It is a schematic diagram of the cross-sectional structure of a cylindrical groove of the present invention; Fig.11 For the present invention Fig.10 The enlarged structural diagram at C in the middle; Fig.12 This is a schematic diagram of the installation shell structure of the present invention; Fig.13 It is a schematic diagram of the arc plate structure of the present invention.

[0015] In the figure: 1, knife bar; 2, knife head; 21, slide groove 1; 22, guide hole; 23, square block; 24, fixed groove; 25, trapezoidal block; 3, slag discharge hole; 31, baffle plate 1; 32, reset spring 1; 33, cavity 3; 34, push rod; 35, connecting rod; 4, fixed ring; 41, guide ring; 42, fixed plate 1; 43, cavity 2; 44, slide groove 3; 45, fixed plate 2; 46, reset spring 3; 47, cavity 1; 48, I-shaped rubber block; 49, installation groove; 410, Guide rod; 5. Guide pipe; 51. Push block; 52. Semicircular groove; 53. Liquid inlet groove; 54. Cylindrical groove; 55. Guide shell; 56. Mounting shell; 561. Rotating rod; 562. Arc plate; 563. Mounting rod; 564. Magnetic block; 565. Arc groove; 566. Iron sheet; 57. Second slide groove; 58. Sliding block; 6. Solution tank; 61. Blocking rod; 62. Second reset spring; 63. Socket; 64. Semicircular elastic block; 7. Second baffle; 71. Sliding groove; 72. Fourth reset spring. DETAILED DESCRIPTION

[0016] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] For example, see Figure 1 - Fig.13The present invention provides a technical solution of a combined boring tool for deep hole processing: the combined boring tool comprises: a tool bar 1 and a tool head 2, the interior of the tool bar 1 is movably plugged with the outer wall of the tool head 2, a cavity 2 43 is provided on the outer wall of the top of the tool bar 1, four guide rods 410 are fixedly connected to the inner wall of the cavity 2 43, a slide groove 3 44 is provided on the outer wall of the tool bar 1, the outer walls of one side of the four slide grooves 3 44 are connected with the outer wall of the cavity 2 43 through and through, a fixing ring 4 is threadedly connected to the outer wall of the tool bar 1, a guide ring 41 is fixedly connected to the outer wall of the top of the fixing ring 4, a trapezoidal block 25 is fixedly connected to the outer wall of the bottom of the tool head 2, a guide hole 22 is provided on the outer wall of the trapezoidal block 25, the inner wall of the guide hole 22 is connected to the guide rod 41 0 is movably plugged in, the outer wall of the bottom of the trapezoidal block 25 is fixedly connected with the square block 23, the outer wall of the square block 23 is provided with a fixing groove 24, the interior of the four sliding grooves 3 44 is fixedly connected with the fixing plate 2 45, the interior of the sliding groove 3 44 is slidably connected with the fixing plate 1 42, the interior of the fixing plate 1 42 is provided with a cavity 1 47, the interior of the cavity 1 47 is slidably connected to the outer wall of the fixing plate 2 45, the outer wall of one side of the fixing plate 2 45 is fixedly connected with a return spring 3 46, the outer wall of one end of the return spring 3 46 is fixedly connected to the inner wall of the cavity 1 47, the outer wall of one side of the fixing plate 1 42 is movably plugged in with the interior of the fixing groove 24, and the outer wall of the other side of the fixing plate 1 42 is movably contacted with the inner wall of the fixing ring 4.

[0018] When the guide ring 41 is driven by the fixing ring 4 to move to the top of the slide groove 3 44, the fixing plate 1 42 can be pushed into the inside of the fixing groove 24, so as to fix the fixing groove 24. By fixing the fixing groove 24, the trapezoidal block 25 can be fixed inside the cavity 2 43, so as to complete the connection between the cutter head 2 and the tool rod 1, and accordingly ensure the stability of the tool during the working process. Through the setting of the fixing ring 4, the fixation and replacement between the tool rod 1 and the cutter head 2 are facilitated, thereby reducing the cost of tool replacement.

[0019] Embodiment 2, on the basis of embodiment 1, a solution box 6 is provided inside the knife bar 1 near the lower part of the second cavity 43, a discharge port is provided below the second cavity 43, a blocking rod 61 is movably inserted inside the discharge port, a reset spring 2 62 is fixedly connected to the outer wall of the top of one side of the blocking rod 61, the outer wall of the top of the reset spring 2 62 is fixedly connected to the upper part of the inner wall of the solution box 6, a plug hole 63 is provided on the outer wall of the top of the blocking rod 61, a semicircular elastic block 64 is fixedly connected to the inner wall of the plug hole 63, a cylindrical groove 54 is provided inside the knife head 2, a slide groove 2 57 is provided on the inner wall of the cylindrical groove 54, a guide pipe 5 is slidably connected to the inside of the cylindrical groove 54, and the guide pipe Slide blocks 58 are fixedly connected to both sides of the outer wall of the guide tube 5. The outer wall of the slide block 58 is slidably connected to the inside of the second slide groove 57. A liquid inlet groove 53 is provided below the outer wall of the guide tube 5. A push block 51 is fixedly connected to the outer wall of the bottom of the guide tube 5. The outer wall of the push block 51 is fixedly connected to the semicircular groove 52. The outer wall of the push block 51 is movably plugged into the inside of the plug hole 63. The insides of the four semicircular grooves 52 are in movably contact with the outer wall of the semicircular elastic block 64. A guide shell 55 is fixedly connected to the outer wall of the top of the guide tube 5. A plurality of outflow holes are provided on the top of the guide shell 55. A mounting shell 56 is fixedly connected to the inside of the guide tube 5. An arc groove 565 is provided on the top of the guide shell 55.

[0020] The cutting fluid in the solution box 6 can enter the interior of the guide tube 5 through the liquid inlet groove 53 on the guide tube 5, and then flow out from the outflow hole on the guide shell 55. Since the cutting fluid is automatically supplied, no manual addition is required. During the processing, as the guide tube 5 moves, the cutting fluid will be transported to the processing area, providing necessary cooling and lubrication for the tool, thereby improving the processing efficiency and tool life.

[0021] Embodiment three, on the basis of embodiment two, a slag discharge hole 3 is formed on the outer wall at the top of the cutter head 2, a cavity three 33 is formed on the outer wall at the bottom of the slag discharge hole 3, a return spring 32 is fixedly connected to the interior of the cavity three 33, a baffle 31 is fixedly connected to the outer wall at the top of the return spring 32, the outer wall of the baffle 31 is slidably connected to the interior of the cavity three 33, a push rod 34 is fixedly connected to the outer wall at the top of the baffle 31, a connecting rod 35 is fixedly connected to the outer wall on one side of the push rod 34, the outer wall on one side of the connecting rod 35 is fixedly connected to the outer wall of the guide tube 5, a slide groove 21 is formed on the outer wall at the top of the cutter head 2, and the interior of the slide groove 21 is in movably contact with the outer wall of the connecting rod 35.

[0022] Before the cutter head 2 comes into contact with the workpiece, the workpiece first generates a thrust on the push rod 34. When the push rod 34 is subjected to force, the push rod 34 can drive the guide tube 5 and the baffle 31 to move simultaneously. When the baffle 31 is subjected to force and enters the interior of the cavity 33, the slag discharge hole 3 can be opened, so that the waste generated by the cutter head 2 can enter the interior of the slag discharge hole 3, thereby avoiding the accumulation of waste on the cutter head 2 or the workpiece, and correspondingly improving the processing efficiency and workpiece quality.

[0023] Embodiment 4, on the basis of embodiment 3, a rotating rod 561 is rotatably connected to the lower part of the inner wall of the mounting shell 56, an outer wall of the rotating rod 561 is fixedly connected to an arc plate 562, an outer wall of the arc plate 562 is rotatably connected to the inner wall of the mounting shell 56, an outer wall of the rotating rod 561 is fixedly connected to a mounting rod 563, an interior of the mounting rod 563 is fixedly connected to a magnetic block 564, an inner wall of the arc groove 565 is fixedly connected to an iron sheet 566, and an outer wall of the iron sheet 566 is magnetically attracted to an outer wall of the magnetic block 564.

[0024] By means of the magnetic attraction between the magnetic block 564 and the iron sheet 566 on the mounting rod 563, when the rotating rod 561 stops moving, the rotating rod 561 can be fixed by means of the magnetic attraction between the iron sheet 566 and the magnetic block 564. Since the use of the cutting fluid can be flexibly controlled, this design enables the equipment to be fully utilized under different processing requirements. When processing some materials that do not require high cooling and lubrication, the supply of cutting fluid can be turned off, thereby simplifying the operating process and improving efficiency. Whether it is precision parts that require high-precision processing or mass production that requires high processing efficiency, the needs can be met by flexibly controlling the use of cutting fluid.

[0025] Embodiment 5, on the basis of embodiment 1, an outer wall at one end of cavity 1 47 is provided with an installation groove 49, and an I-shaped rubber block 48 is movably connected inside the installation groove 49, and a sliding groove 71 is provided on the inner wall on one side of the installation groove 49, and a return spring 4 72 is fixedly connected inside the sliding groove 71, and a baffle 2 7 is fixedly connected to the outer wall of one end of the return spring 4 72, and the outer wall of the baffle 2 7 is slidably connected to the inside of the sliding groove 71, and the outer wall on one side of the baffle 2 7 is in movably contact with the outer wall on one side of the I-shaped rubber block 48.

[0026] Since the I-shaped rubber block 48 has a certain elasticity, when the cutter head 2 generates vibration during operation, the I-shaped rubber block 48 can absorb part of the impact force when it is transmitted to the fixing plate 1 42 through the fixing groove 24, thereby further reducing the collision between the fixing plate 1 42 and the fixing groove 24, and correspondingly reducing the direct collision and friction between the fixing plate 1 42 and the fixing groove 24, thereby reducing noise and vibration; By movably connecting the fixing plate 1 42 with the I-shaped rubber block 48 , it is avoided that the I-shaped rubber block 48 and the fixing plate 1 42 need to be replaced together when the I-shaped rubber block 48 is replaced, thereby correspondingly increasing the efficiency of replacing the I-shaped rubber block 48 and saving the cost of replacing the I-shaped rubber block 48 .

[0027] During actual use, when the tool rod 1 is connected to the tool head 2, first, the tool head 2 drives the trapezoidal block 25 to be inserted into the interior of the second cavity 43 on the tool rod 1, and the guide hole 22 is aligned with the guide rod 410 for insertion. Through the cooperation between the guide hole 22 and the guide rod 410, it is ensured that the trapezoidal block 25 can be inserted into the second cavity 43 along a predetermined trajectory, and it is avoided that when the trapezoidal block 25 is inserted into the second cavity 43, the slot on the trapezoidal block 25 will be aligned with the structure inside the second cavity 43, thereby correspondingly improving the accuracy and stability of the trapezoidal block 25 inserted into the second cavity 43.

[0028] After the square block 23 is inserted into the second cavity 43 by the trapezoidal block 25, the fixing groove 24 can be aligned with the fixing plate 1 42. At this time, the operator fixes the knife bar 1 with one hand and holds the fixing ring 4 with the other hand to rotate it clockwise. Through the threaded connection between the fixing ring 4 and the knife bar 1, when the fixing ring 4 is rotated, the thread of the fixing ring 4 and the thread of the knife bar 1 produce relative movement, so that the fixing ring 4 can move upward on the knife bar 1. When the fixing ring 4 drives the guide ring 41 to move upward, The inclined surface of the guide ring 41 pushes the fixed plate 1 42. When the fixed ring 4 drives the guide ring 41 to move to the top of the slide groove 3 44, the fixed plate 1 42 can be pushed into the inside of the fixed groove 24, thereby fixing the fixed groove 24. By fixing the fixed groove 24, the trapezoidal block 25 can be fixed inside the cavity 2 43, thereby completing the connection between the cutter head 2 and the tool rod 1, and correspondingly ensuring the stability of the tool during the working process. The setting of the fixed ring 4 facilitates the fixation and replacement of the tool rod 1 and the cutter head 2.

[0029] It should be noted that: by rotating the fixing ring 4 counterclockwise, the fixing ring 4 can be moved downward on the knife rod 1, thereby releasing the fixation of the fixing ring 4 and the fixing plate 1 42, and then by setting the fixing plate 2 45 and the return spring 3 46, when the fixing ring 4 is fixed, the return spring 3 46 can be used to drive the fixing plate 1 42 to move inside the slide groove 3 44, thereby releasing the fixation of the fixing plate 1 42 and the fixing groove 24, which is convenient for the installation and disassembly between the knife rod 1 and the knife head 2.

[0030] By setting the I-shaped rubber block 48 at one end of the fixing plate 42, after the fixing plate 42 is inserted into the fixing groove 24, the I-shaped rubber block 48 can be in contact with the inside of the fixing groove 24. Since the I-shaped rubber block 48 has a certain elasticity, when the cutter head 2 generates vibration during operation, the I-shaped rubber block 48 can absorb part of the impact force when it is transmitted to the fixing plate 42 through the fixing groove 24, thereby further reducing the collision between the fixing plate 42 and the fixing groove 24, and correspondingly reducing the direct collision and friction between the fixing plate 42 and the fixing groove 24, thereby reducing noise and vibration.

[0031] The close contact between the I-shaped rubber block 48 and the inner wall of the fixing groove 24 can also increase the friction between the fixing plate 42 and the fixing groove 24. This increased friction helps prevent the fixing plate 42 from accidentally sliding or falling off in the fixing groove 24, especially when it needs to withstand large external forces or vibrations, and can ensure the stable connection between the fixing plate 42 and the fixing groove 24.

[0032] Since the I-shaped rubber block 48 plays an important role in fixing between the fixing plate 1 42 and the fixing groove 24, the I-shaped rubber block 48 will be greatly worn when the fixing plate 1 42 and the fixing groove 24 are fixed. When the I-shaped rubber block 48 is worn, the operator can pull the through hole on the baffle plate 27 by hand. When the through hole is moved by external force, the baffle plate 27 can be pushed into the interior of the sliding groove 71, thereby releasing the fixation of the baffle plate 27 on the I-shaped rubber block 48, and the I-shaped rubber block 48 can be replaced. The movable connection between the fixing plate 1 42 and the I-shaped rubber block 48 avoids the need to replace the I-shaped rubber block 48 and the fixing plate 1 42 together when replacing the I-shaped rubber block 48, thereby increasing the efficiency of replacing the I-shaped rubber block 48 accordingly, thereby saving the cost of replacing the I-shaped rubber block 48.

[0033] When the square block 23 is inserted into the interior of the cavity 2 43, the cutter head 2 can drive the push block 51 on the guide tube 5 to be inserted into the interior of the socket 63, so that a connection relationship is established between the guide tube 5 and the solution tank 6. When the push block 51 is inserted into the interior of the socket 63, since the semicircular elastic block 64 is elastic, the push block 51 can be inserted into the interior of the socket 63, causing the socket 63 to deform. When the push block 51 enters below the interior of the socket 63, the semicircular elastic block 64 can enter the interior of the semicircular groove 52. Through the connection between the semicircular elastic block 64 and the semicircular groove 52, the connection between the push block 51 and the socket 63 is correspondingly increased.

[0034] When the connection between the tool rod 1 and the tool head 2 is completed and they start working, since the push rod 34 is longer than the top of the tool head 2, when the tool head 2 starts to process the workpiece, the workpiece can first generate a thrust on the push rod 34 before the tool head 2 contacts the workpiece. When the push rod 34 is subjected to force, the push rod 34 can drive the guide tube 5 and the baffle 31 to move simultaneously. When the baffle 31 is subjected to force and enters the interior of the cavity 33, the slag discharge hole 3 can be opened, so that the waste generated by the tool head 2 can enter the interior of the slag discharge hole 3, thereby avoiding the accumulation of waste on the tool head 2 or the workpiece, and correspondingly improving the processing efficiency and workpiece quality.

[0035] It should be noted that: when the cutter head 2 leaves the workpiece after the work is completed, the thrust of the workpiece on the push rod 34 can be released. At this time, under the action of the reset spring 32, the baffle 31 and the connecting rod 35 can be pushed to return to their original positions, thereby blocking one side of the slag discharge hole 3, preventing the waste inside the slag discharge hole 3 from spilling when the cutter head 2 is pulled out from the workpiece processing hole, thereby ensuring the cleanliness of the processing area and making it easier for the operator to clean up the waste.

[0036] Through the movement of the connecting rod 35, the guide tube 5 can be driven to slide downward inside the cylindrical groove 54. When the guide tube 5 moves downward, the pushing block 51 can push the blocking rod 61 to move downward, so that the liquid inlet groove 53 on the guide tube 5 enters the interior of the solution box 6, and the cutting fluid inside the solution box 6 can enter the interior of the guide tube 5 through the liquid inlet groove 53, so as to flow out from the outflow hole on the guide shell 55. Since the cutting fluid is automatically supplied and no manual addition is required, during the processing, as the guide tube 5 moves, the cutting fluid will be transported to the processing area, providing necessary cooling and lubrication for the tool, thereby improving the processing efficiency and tool life.

[0037] It should be noted that: when the connecting rod 35 returns to its original position, the thrust of the guide tube 5 on the blocking rod 61 can be released. At this time, under the action of the reset spring 2 62, the blocking rod 61 can block the discharge port. Through the arrangement of the semicircular groove 52 and the semicircular elastic block 64, the push block 51 can also contact the insertion hole 63 when the guide tube 5 moves upward, so that the guide tube 5 and the blocking rod 61 are always connected, avoiding the offset when the reset spring 2 62 pushes the blocking rod 61 to insert into the discharge port. Accordingly, by converting the guide tube 5 into a guide support rod for the blocking rod 61, the blocking rod 61 can be stably inserted into the discharge port.

[0038] When the cutting fluid is no longer needed, the operator rotates the rotating rod 561 by hand, and then the movement of the rotating rod 561 can drive the arc plate 562 and the mounting rod 563 to rotate at the same time, so that the arc plate 562 blocks the empty groove on the mounting shell 56, and the guide tube 5 is blocked, thereby preventing the cutting fluid from flowing out from the inside of the guide tube 5, and correspondingly increasing the flexibility of the use of the cutting fluid. Through the magnetic attraction between the magnetic block 564 and the iron sheet 566 on the mounting rod 563, when the rotating rod 561 stops moving, the rotating rod 561 can be fixed by the magnetic attraction between the iron sheet 566 and the magnetic block 564. Since the use of the cutting fluid can be flexibly controlled, this design allows the equipment to be fully utilized under different processing requirements. When processing some materials that do not require high cooling and lubrication, the supply of cutting fluid can be turned off, thereby simplifying the operation process and improving efficiency. Whether it is precision parts that require high-precision processing or mass production that requires high processing efficiency, the use of cutting fluid can be flexibly controlled to meet the needs.

[0039] It should be noted that after the cutter head 2 is separated from the cutter rod 1 , the operator can press the blocking rod 61 away from the discharge port, so that cutting fluid can be added to the solution box 6 .

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A combined boring tool for deep hole machining, characterized in that: The combined boring tool comprises: a tool bar (1) and a tool head (2); the interior of the tool bar (1) is movably plugged into the outer wall of the tool head (2); the outer wall at the top of the tool bar (1) is provided with a second cavity (43); the inner wall of the second cavity (43) is fixedly connected with four guide rods (410); the outer wall of the tool bar (1) is provided with a third slide groove (44); the outer walls of one side of the four third slide grooves (44) are connected through the outer wall of the second cavity (43); the outer wall of the tool bar (1) is threadedly connected with a fixing ring (4); and the outer wall at the top of the fixing ring (4) is fixedly connected with a guide ring (41).

2. A combined boring tool for deep hole machining according to claim 1, characterized in that: The outer wall of the bottom of the cutter head (2) is fixedly connected to a trapezoidal block (25), the outer wall of the trapezoidal block (25) is provided with a guide hole (22), the interior of the guide hole (22) is movably plugged with the outer wall of the guide rod (410), the outer wall of the bottom of the trapezoidal block (25) is fixedly connected to a square block (23), the outer wall of the square block (23) is provided with a fixing groove (24).

3. The combined boring tool for deep hole machining according to claim 1, characterized in that: The interior of the four slide grooves three (44) is fixedly connected with a fixed plate two (45), and the interior of the slide groove three (44) is slidably connected with a fixed plate one (42). A cavity one (47) is provided inside the fixed plate one (42), and the interior of the cavity one (47) is slidably connected to the outer wall of the fixed plate two (45). A return spring three (46) is fixedly connected to the outer wall of one side of the fixed plate two (45), and the outer wall of one end of the return spring three (46) is fixedly connected to the inner wall of the cavity one (47). The outer wall of one side of the fixed plate one (42) is movably plugged into the interior of the fixed groove (24), and the outer wall of the other side of the fixed plate one (42) is movably contacted with the inner wall of the fixed ring (4).

4. The combined boring tool for deep hole machining according to claim 1, characterized in that: A solution box (6) is provided inside the knife rod (1) near the lower part of the second cavity (43), a discharge port is provided below the second cavity (43), a blocking rod (61) is movably inserted inside the discharge port, a second return spring (62) is fixedly connected to the outer wall of the top of one side of the blocking rod (61), the outer wall of the top of the second return spring (62) is fixedly connected to the upper part of the inner wall of the solution box (6), a plug hole (63) is provided on the outer wall of the top of the blocking rod (61), and a semicircular elastic block (64) is fixedly connected to the inner wall of the plug hole (63).

5. The combined boring tool for deep hole machining according to claim 2, characterized in that: A cylindrical groove (54) is provided inside the cutter head (2), a second slide groove (57) is provided on the inner wall of the cylindrical groove (54), a guide tube (5) is slidably connected inside the cylindrical groove (54), sliders (58) are fixedly connected to both sides of the outer wall of the guide tube (5), the outer wall of the slider (58) is slidably connected to the inside of the second slide groove (57), a liquid inlet groove (53) is provided below the outer wall of the guide tube (5), and a push block (51) is fixedly connected to the outer wall of the bottom of the guide tube (5).

6. A combined boring tool for deep hole machining according to claim 5, characterized in that: The outer wall of the pushing block (51) is fixedly connected with a semicircular groove (52), the outer wall of the pushing block (51) is movably plugged into the inside of the insertion hole (63), and the insides of the four semicircular grooves (52) are in movably contact with the outer wall of the semicircular elastic block (64).

7. The combined boring tool for deep hole machining according to claim 1, characterized in that: The outer wall of the top of the cutter head (2) is provided with a slag discharge hole (3), the outer wall of the bottom of the slag discharge hole (3) is provided with a cavity three (33), the interior of the cavity three (33) is fixedly connected with a return spring one (32), the outer wall of the top of the return spring one (32) is fixedly connected with a baffle one (31), the outer wall of the baffle one (31) is slidably connected with the interior of the cavity three (33), the outer wall of the top of the baffle one (31) is fixedly connected with a push rod (34), the outer wall on one side of the push rod (34) is fixedly connected with a connecting rod (35), the outer wall on one side of the connecting rod (35) is fixedly connected with the outer wall of the guide tube (5), the outer wall of the top of the cutter head (2) is provided with a slide groove one (21), the interior of the slide groove one (21) is in movably contact with the outer wall of the connecting rod (35).

8. The combined boring tool for deep hole machining according to claim 5, characterized in that: The outer wall at the top of the flow guide tube (5) is fixedly connected to a flow guide shell (55), and a plurality of outflow holes are provided at the top of the flow guide shell (55). The interior of the flow guide tube (5) is fixedly connected to a mounting shell (56), and an arc-shaped groove (565) is provided at the top of the flow guide shell (55).

9. A combined boring tool for deep hole machining according to claim 8, characterized in that: A rotating rod (561) is rotatably connected to the lower part of the inner wall of the mounting shell (56); an arc-shaped plate (562) is fixedly connected to the outer wall of the rotating rod (561); the outer wall of the arc-shaped plate (562) is rotatably connected to the inner wall of the mounting shell (56); a mounting rod (563) is fixedly connected to the outer wall of the rotating rod (561); a magnetic block (564) is fixedly connected to the interior of the mounting rod (563); an iron sheet (566) is fixedly connected to the inner wall of the arc-shaped groove (565); and the outer wall of the iron sheet (566) is magnetically attracted to the outer wall of the magnetic block (564).

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