A combined double-sided turning tool for deep hole machining on a lathe

Abstract

The present invention relates to the technical field of deep hole machining on lathes, and specifically relates to a combined double-sided turning tool for deep hole machining on lathes, which includes a tool shank and a turning tool holder movably installed at its upper end. The tool shank is composed of a clamping part and a receiving part. Curved inclined grooves are respectively arranged on both sides of the turning tool holder. The beneficial effects are as follows: The tool shank and the turning tool holder are designed with a split structure, so that when the turning tool holder is hidden, it can serve as a compensation block for the upper part of the receiving part, and when it extends, it serves as the base of the double-sided turning tool, realizing the milling of the upper and lower planes in deep hole machining, solving the problems of limited deep hole machining and single functionality of existing turning tools. The combined structure of the tool shank and the tool holder can be optimized, which can not only meet the stable operation of the turning tool during deep hole turning and milling, but also meet the drilling and milling of deep holes, and also meet the efficient storage of each component when the turning tool is idle, without the need for disassembly and separate storage, achieving the effect of multi-purpose use of one object.

Description

Technical Field

[0001] The present invention relates to the technical field of deep hole machining on lathes, and specifically to a combined double-sided turning tool for deep hole machining on lathes. Background Technique

[0002] The combined double-sided turning tool is a new type of tool designed to address various defects that occur during the use of traditional lathe tools. Traditional lathe tools have many deficiencies in cutting rod materials, workpiece grooving, and thread machining. Currently, most turning tools can only perform single-sided machining during the machining process. For some shell-like parts, when two holes on the upper and lower sides need to be machined, there will be certain limitations, and the product needs to be flipped for secondary clamping and secondary machining, which undoubtedly greatly reduces the production efficiency in mass production.

[0003] In the prior art, for example, a double-sided turning tool for deep hole machining on a lathe with the publication number CN216263476U includes a workbench, a turning tool body, a threaded rod, and a connecting block. A fixed block is fixed on one side of the workbench, a second motor is fixed on one side of the fixed block, a third through hole is opened on one side of the fixed block, the transmission shaft rotated by the second motor extends into the third through hole, a housing is fixed on one side of the transmission shaft rotated by the second motor, and the housing is inserted into a cylinder. It has the advantage of being able to adjust the turning tool according to the size of the deep hole to be machined, improving work efficiency.

[0004] In order to solve the problem that the double-sided turning tool for deep hole machining on a lathe cannot adjust the turning tool according to the size of the deep hole to be machined, resulting in a reduction in work efficiency, the prior art uses a method of thread adaptation to achieve the adjustment of the deep hole size.

[0005] However, in the actual use process, it can only singly achieve the turning of the hole diameter on one plane, and cannot synchronously perform stepped hole machining on the upper and lower two holes. At the same time, the positioning effect of deep hole machining is not good; and the functionality of the turning tool is single, and the cutting blade cannot be hidden when the turning tool is idle.

[0006] Therefore, the present invention proposes a combined double-sided turning tool for deep hole machining on a lathe to solve the problems of limited deep hole machining and single functionality of existing turning tools. It can optimize the combined structure of the tool shank and the tool holder, which can not only meet the stable operation of the turning tool during deep hole turning and milling machining, but also meet the drilling and milling of deep holes, and also meet the safe storage of the turning tool when it is idle, achieving the effect of multi-purpose use. Summary of the Invention

[0007] The purpose of the present invention is to provide a combined double-sided turning tool for deep hole machining on a lathe to solve the problems raised in the above background technique.

[0008] To achieve the above object, the present invention provides the following technical solution: A combined double-sided turning tool for deep hole machining of a lathe, including a tool shank and a turning tool seat movably installed at its upper end. The tool shank is composed of a clamping part and a receiving part. Curved inclined grooves are respectively arranged on both sides of the turning tool seat. Knife seat side receiving grooves are opened on the other two opposite sides of the turning tool seat. Each group of knife seat side receiving grooves is internally movably installed with a side double-sided turning tool assembly. There are two groups of the side double-sided turning tool assemblies. A central threaded drill bit is arranged on the inner surface of the center of the upper end of the turning tool seat.

[0009] Preferably, the side double-sided turning tool assembly includes a cylindrical bolt, a threaded fastening substrate and a turning tool. The threaded fastening substrate is detachably connected to the turning tool. The inner surface of the threaded fastening substrate is threadedly connected to the outer surface of the cylindrical bolt. Both ends of the cylindrical bolt penetrate the inner wall of the curved inclined groove and are threadedly connected thereto.

[0010] Preferably, a limit installation groove is opened at one end of the turning tool away from the threaded fastening substrate. A blade is fixedly installed inside the limit installation groove through a bolt. The turning tool is movably installed inside the knife seat side receiving groove.

[0011] Preferably, there are two groups of the turning tools and the blades. The two groups of turning tools and the blades are distributed relatively. Circular holes and limit T-shaped grooves are opened on the inner wall of the turning tool. There are two groups of the circular holes. Both groups of circular holes are opened on the upper inner wall of the turning tool. A screwing sleeve bolt is arranged inside the circular hole. A cylindrical groove is opened on the central inner wall of the screwing sleeve bolt.

[0012] Preferably, a central limit convex column is fixedly installed on the bottom surface of the inner cavity of the circular hole. The outer surface of the central limit convex column is movably connected to the inner surface of the cylindrical groove opened on the central inner wall of the screwing sleeve bolt. The outer ring surface of the screwing sleeve bolt is rotatably connected to the inner surface of the circular hole. Reserved arc grooves are respectively opened on the inner walls on both sides of the screwing sleeve bolt. The reserved arc groove is an inward concave curve groove structure. A locking push rod is movably abutted against the inner surface of the reserved arc groove.

[0013] Preferably, there are two groups of the locking push rods and they are symmetrically distributed about the central axis of the screwing sleeve bolt. Round corners are arranged at one ends of the two groups of locking push rods close to the screwing sleeve bolt. The outer surface of the round corner is movably abutted against the inner surface of the reserved arc groove. The outer surface of the locking push rod is movably connected to the inner surface of the limit T-shaped groove.

[0014] Preferably, a fixed connection piece is fixedly installed on the upper surface of the locking push rod. The outer surface on the upper side of the fixed connection piece is movably connected to the inner top surface of the limit T-shaped groove. An elastic block is fixedly connected to the outer side surface of the fixed connection piece. The other end of the elastic block is fixedly connected to a blocking seal block. The blocking seal block is fixedly installed on the inner top surface of the limit T-shaped groove.

[0015] Preferably, locking grooves are respectively formed on the inner walls of both sides of the receiving groove on the side of the tool holder, and the outer surface of the locking push rod is movably inserted into the inner surface of the locking groove.

[0016] Preferably, a turning tool holder receiving groove is formed on the central inner wall of the receiving portion. The inner surface of the turning tool holder receiving groove is movably connected to the outer surface of the turning tool holder. An electromagnetic block I is fixedly installed on the bottom surface of the inner cavity of the turning tool holder receiving groove, and an electromagnetic block II is electromagnetically connected above the electromagnetic block I. The electromagnetic block II is fixedly installed on the bottom surface of the turning tool holder.

[0017] Preferably, telescopic sleeve rods and return springs are arranged on both sides of the electromagnetic block I. The lower ends of the telescopic sleeve rods and the return springs are fixedly connected to the bottom surface of the inner cavity of the turning tool holder receiving groove. The outer surfaces of the upper ends of the telescopic sleeve rods and the return springs are respectively fixedly connected to the bottom surface of the turning tool holder. The return spring is slidably sleeved on the outside of the telescopic sleeve rod.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] A combined double-sided turning tool for deep hole machining of a lathe proposed by the present invention designs the tool shank and the turning tool holder in a split structure. When the turning tool holder is hidden, it can be used as a compensation block on the upper part of the receiving portion, and when it extends, it serves as the base of the double-sided turning tool, realizing the milling of the upper and lower planes in deep hole machining, solving the problems of limited deep hole machining and single functionality of existing turning tools, and enabling the optimization of the combined structure of the tool shank and the tool holder. It can not only ensure the stable operation of the turning tool during deep hole turning and milling, meet the drilling and milling of deep holes, but also meet the efficient storage of each component when the turning tool is idle, without the need for disassembly and separate storage, achieving the effect of multi-purpose use. Description of the Drawings

[0020] Figure 1 It is a schematic structural diagram of the state where the turning tool holder of the present invention is hidden in the receiving portion;

[0021] Figure 2 It is a schematic structural diagram of the state where the turning tool holder of the present invention extends out of the turning tool holder;

[0022] Figure 3 It is a schematic partial hidden sectional structural diagram of the turning tool holder of the present invention;

[0023] Figure 4 For the present invention Figure 3 The enlarged structural diagram at position A;

[0024] Figure 5 It is a schematic connection structural diagram of the receiving portion and the extended turning tool holder of the present invention;

[0025] Figure 6Schematic diagram of a partial cross-section structure of the side double-sided turning tool assembly of the present invention after expansion;

[0026] Figure 7 Schematic diagram of a partial cross-section structure of the side double-sided turning tool assembly of the present invention after being stored;

[0027] Figure 8 For the present invention Figure 7 Enlarged structure diagram at position B;

[0028] Figure 9 Schematic diagram of a side cross-section structure of the turning tool seat of the present invention;

[0029] Figure 10 Schematic diagram of the structure of a single-group side double-sided turning tool assembly of the present invention;

[0030] Figure 11 Schematic diagram of a side cross-section structure of the side double-sided turning tool assembly of the present invention;

[0031] Figure 12 For the present invention Figure 11 Enlarged structure diagram at position C;

[0032] Figure 13 Exploded structure diagram of the screwing sleeve bolt and the turning tool of the present invention;

[0033] Figure 14 Schematic diagram of the deep hole machining state of the present invention.

[0034] In the figure: 1. Tool shank; 11. Clamping part; 12. Receiving part; 120. Turning tool seat receiving groove; 1200. Side groove; 1201. Strip-shaped debris collection frame; 2. Turning tool seat; 21. Curved inclined groove; 22. Center thread drill; 23. Side double-sided turning tool assembly; 231. Cylindrical bolt; 232. Threaded fastening substrate; 233. Turning tool; 234. Blade; 24. Electromagnet one; 241. Electromagnet two; 242. Telescopic sleeve rod; 243. Return spring; 20. Tool seat side receiving groove; 2330. Circular hole; 2331. Center limit convex column; 3. Screwing sleeve bolt; 30. Reserved arc groove; 31. Locking push rod; 311. Fixed connection piece; 312. Elastic block; 313. Blocking seal block; 23300. Limit T-shaped groove; 201. Locking groove. Detailed implementation method

[0035] In order to clearly and completely describe the objectives, technical solutions of the present invention and make its advantages more clearly understood, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are some but not all of the embodiments of the present invention, and are only used to explain the embodiments of the present invention, not to limit the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0036] Embodiment 1. Please refer to Figure 1 - Figure 14 , the present invention provides a technical solution: a combined double-sided turning tool for deep hole machining of a lathe, including a tool shank 1 and a turning tool seat 2 movably installed at its upper end. The tool shank 1 is composed of a clamping part 11 and a receiving part 12. Curved inclined grooves 21 are respectively provided on both sides of the turning tool seat 2. Tool seat side receiving grooves 20 are respectively formed on the other two opposite sides of the turning tool seat 2. Side double-sided turning tool assemblies 23 are respectively movably installed inside each group of tool seat side receiving grooves 20. There are two groups of side double-sided turning tool assemblies 23. A central thread drill 22 is provided on the inner surface of the center of the upper end of the turning tool seat 2; by designing the tool shank 1 and the turning tool seat 2 as a split structure, when the turning tool seat 2 is hidden, it can be used as a compensation for the upper part of the receiving part 12, and when it extends, it serves as the base of the double-sided turning tool, realizing the milling of the upper and lower planes in deep hole machining, solving the problems of limited deep hole machining and single functionality of existing turning tools, and enabling the optimization of the combined structure of the tool shank and the tool seat. It can not only ensure the stable operation of the turning tool during deep hole turning and milling, meet the drilling and milling of deep holes, but also meet the efficient storage of each component when the turning tool is idle, without the need for disassembly and separate storage, achieving the effect of multi-purpose use.

[0037] Embodiment 2. On the basis of Embodiment 1, in order to achieve double-sided machining of deep holes on a lathe and rapid storage when the double-sided turning tool is idle, this embodiment further proposes that the side double-sided turning tool assembly 23 includes a columnar bolt 231, a threaded fastening substrate 232, and a turning tool 233. The threaded fastening substrate 232 is detachably connected to the turning tool 233. The inner surface of the threaded fastening substrate 232 is threadedly connected to the outer surface of the columnar bolt 231. Both ends of the columnar bolt 231 penetrate through the inner wall of the curved surface inclined groove 21 and are threadedly connected thereto. A limit installation groove is provided at one end of the turning tool 233 away from the threaded fastening substrate 232. A blade 234 is fixedly installed inside the limit installation groove through a bolt. The turning tool 233 is movably installed inside the side storage groove 20 of the tool holder. There are two sets of the turning tool 233 and the blade 234, and the two sets of the turning tool 233 and the blade 234 are distributed relatively. Circular holes 2330 and limit T-shaped grooves 23300 are provided on the inner wall of the turning tool 233. There are two sets of the circular holes 2330, and both sets of the circular holes 2330 are provided on the upper inner wall of the turning tool 233. A screwing socket bolt 3 is provided inside the circular hole 2330, and a cylindrical groove is provided on the central inner wall of the screwing socket bolt 3.

[0038] In this embodiment, through the side storage grooves 20 provided on both sides of the turning tool holder 2, the two sets of side double-sided turning tool assemblies 23 can be stored. When double-sided machining of deep holes is required, as Figure 5 - Figure 6 shown, the columnar bolt 231 penetrates through one end of the threaded fastening substrate 232 and extends to the inner wall of the curved surface inclined groove 21 to be threadedly adapted thereto, ensuring that the threaded fastening substrate 232 and the turning tool 233 achieve a fastening effect. As Figure 6 shown, the two sets of turning tools 233 are horizontal, one set of blades 234 faces upward, and the other set of blades 234 faces downward. In this way, the two sets of blades 234 are in two different horizontal planes. When the workpiece is fixed by the clamping member and fed, the two sets of blades 234 perform deep hole machining on the workpiece. It should be noted that the blade 234 is fixedly connected to the limit installation groove through a bolt, and a tool pad is installed at the bottom of the blade 234, and the two are fixedly connected and fixed by a bolt to form a stable whole, so as to prevent damage to the blade 234 during the locking process, and the locking force can be increased, the vibration of the blade 234 can be reduced, and the stability of the deep hole drilling machine can be further improved during machining. When the side double-sided turning tool assembly 23 does not need to be used and the central threaded drill 22 is required for auxiliary drilling, the whole side double-sided turning tool assembly 23 is hidden. Here, the central threaded drill 22 can be used for preliminary drilling and positioning. Specifically, the columnar bolt 231 is rotated reversely, and the side double-sided turning tool assembly 23 is rotated downward to ensure that the whole side double-sided turning tool assembly 23 is stored inside the side storage groove 20 of the tool holder, and the effect of one object being used for two purposes can be achieved.

[0039] Embodiment 3. On the basis of Embodiment 2, in order to achieve the locking of the double-sided turning tool assembly 23 on the rear side and the side receiving groove 20 of the tool holder and prevent accidental ejection, this embodiment further proposes: A central limiting convex column 2331 is fixedly installed on the inner cavity bottom surface of the circular hole 2330. The outer surface of the central limiting convex column 2331 is movably connected to the inner surface of the cylindrical groove opened on the inner wall of the center of the screwing sleeve bolt 3. The outer ring surface of the screwing sleeve bolt 3 is rotatably connected to the inner surface of the circular hole 2330. Reserved arc grooves 30 are respectively opened on the inner walls on both sides of the screwing sleeve bolt 3. The reserved arc groove 30 is an inner concave curve groove structure. A locking push rod 31 is movably abutted against the inner surface of the reserved arc groove 30; There are two groups of locking push rods 31, which are symmetrically distributed about the central axis of the screwing sleeve bolt 3. The ends of the two groups of locking push rods 31 close to the screwing sleeve bolt 3 are provided with rounded corners, and the outer surface of the rounded corners is movably abutted against the inner surface of the reserved arc groove 30. The outer surface of the locking push rod 31 is movably connected to the inner surface of the limiting T-shaped groove 23300; A fixed connecting piece 311 is fixedly installed on the upper surface of the locking push rod 31. The outer surface on the upper side of the fixed connecting piece 311 is movably connected to the inner top surface of the limiting T-shaped groove 23300. An elastic block 312 is fixedly connected to the outer side surface of the fixed connecting piece 311. The other end of the elastic block 312 is fixedly connected to a blocking sealing block 313, and the blocking sealing block 313 is fixedly installed on the inner top surface of the limiting T-shaped groove 23300; Locking grooves 201 are respectively opened on the inner walls on both sides of the side receiving groove 20 of the tool holder. The inner surface of the locking groove 201 is movably inserted into the outer surface of the locking push rod 31; Side grooves 1200 are respectively opened on both sides of the receiving portion 12. A through groove is opened on the lower inner wall of the side groove 1200, and a strip-shaped debris collection frame 1201 is detachably installed on the outer surface of the through groove;

[0040] In this embodiment, a circular hole 2330 is formed on the surface of the turning tool 233 for installing the screwing socket 3, and a central limiting convex column 2331 added is fixed to the bottom surface of the circular hole 2330 as a limiting member for the installation of the screwing socket 3. When the side double-sided turning tool assembly 23 is completely received inside the side receiving groove 20 of the tool holder, the hand grabs the screwing socket 3 and rotates it 90° to the left or right. At this time, the locking push rods 31 on both sides of the screwing socket 3 are limited by the reserved arc-shaped groove 30 and move relatively to both sides respectively. And the rounded corner parts of the locking push rods 31 are in contact with the outer ring surface of the screwing socket 3 under the continuous rotation of the screwing socket 3. At the same time, the locking push rods 31 slide on the inner walls of the limiting T-shaped grooves 23300 respectively, and then are inserted into the inside of the locking grooves 201 respectively, so as to lock the turning tool 233 and prevent accidental detachment; it should be noted that by connecting an elastic block 312 to the upper surface of the locking push rod 31, when the locking push rod 31 moves outward, the elastic block 312 exerts a squeezing force on the blocking block 313. At this time, the elastic block 312 generates compressive deformation. At this time, the elastic block 312 can play a damping effect to avoid the situation that the locking push rod 31 shakes during the operation of the central thread drill 22. And when the screwing socket 3 is reversed back to the initial position, the reserved arc-shaped groove 30 is in the two-side position, and the locking push rod 31 enters the reserved arc-shaped groove 30. Then at this time, the elastic block 312 can also provide a quick pulling force for the locking push rod 31 when it is withdrawn, so as to realize the quick detachment of the side double-sided turning tool assembly 23 as a whole from the side receiving groove 20 of the tool holder. The structure is simple and the safety is high. And it should be noted that the outer ring of the central limiting convex column 2331 is covered with a gasket made of rubber material, so that after the screwing socket 3 is rotated under force, there is a rubber resistance, and the screwing socket 3 will not rotate spontaneously in the use state.

[0041] Embodiment 4. On the basis of Embodiment 3, in order to realize the overall hiding of the turning tool holder 2 into the middle of the receiving part 12, this embodiment also proposes: a turning tool holder receiving groove 120 is formed on the central inner wall of the receiving part 12, and the inner surface of the turning tool holder receiving groove 120 is movably connected to the outer surface of the turning tool holder 2. An electromagnetic block 1 24 is fixedly installed on the inner cavity bottom surface of the turning tool holder receiving groove 120, and an electromagnetic block 2 241 is electromagnetically connected above the electromagnetic block 1 24. The electromagnetic block 2 241 is fixedly installed on the bottom surface of the turning tool holder 2; on both sides of the electromagnetic block 1 24, there are telescopic sleeve rods 242 and return springs 243. The lower ends of the telescopic sleeve rods 242 and the return springs 243 are fixedly connected to the inner cavity bottom surface of the turning tool holder receiving groove 120, and the outer surfaces of the upper ends of the telescopic sleeve rods 242 and the return springs 243 are respectively fixedly connected to the bottom surface of the turning tool holder 2. The return spring 243 is slidably sleeved outside the telescopic sleeve rod 242;

[0042] In this embodiment, when the turning tool holder 2 as a whole needs to be received into the inner cavity of the turning tool holder receiving groove 120, refer toFigure 3 As shown, when the turning tool seat 2 extends out of the receiving portion 12, it always relies on the energization of the first electromagnetic block 24. Specifically, when the first electromagnetic block 24 is in the energized state, it always generates a repulsive force on the second electromagnetic block 241. In this way, the second electromagnetic block 241 pushes the entire turning tool seat 2 outwards, exposing both sides of the receiving groove 20 on the side of the tool seat. At the same time, when the second electromagnetic block 241 pushes the turning tool seat 2 to move outwards, the telescopic sleeve rod 242 and the return spring 243 are elastically stretched under the pulling force of the turning tool seat 2, playing a role of guiding, limiting and buffering. When the turning tool seat 2 is completely pushed out, the curved inclined groove 21 is also in an exposed state. It should be noted that the curved inclined groove 21 is set as an inclined plane. When using the center thread drill bit 22 to drill the center of the hole diameter, the generated debris will exist in the inclined plane formed by the curved inclined groove 21 and the turning tool seat 2. When the turning tool seat 2 extends out of the receiving portion 12 as a whole, the accumulated debris is exported together; and by Figure 3 It can be clearly seen that the inner cavity of the receiving groove 20 on the side of the tool seat is divided into two parts. One part is used for the storage of the double-sided turning tool assembly 23 on the side, and the other part is in a cavity state. It should be noted that even when a certain amount of debris accumulates during the drilling operation of the blade 234 in the cavity part of the receiving groove 20 on the side of the tool seat and is not processed in time, when the turning tool seat 2 is retracted into the inner cavity of the turning tool seat receiving groove 120, by disassembling the strip-shaped debris collection frame 1201, the cavity position of the receiving groove 20 on the side of the tool seat is exposed, and the timely cleaning of the accumulated debris can be realized, avoiding damage to the blade 234 and blockage of the turning tool seat receiving groove 120. In this way, the receiving groove 20 on the side of the tool seat can not only realize the storage of the tool, but also be suitable for the collection and cleaning of debris, with complete functions.

[0043] In actual use, the steps are as follows: Step 1, preparation for double-sided machining of deep holes on a lathe: Pass both ends of the cylindrical bolt 231 through the inner wall of the curved surface inclined groove 21 and thread-connect them. Ensure that in the limit installation groove opened at the end of the turning tool 233 away from the threaded fastening substrate 232, a cutting blade 234 is fixedly installed by bolts. Adjust the two groups of turning tools 233 and cutting blades 234 to relative distribution positions, ensuring that they are in two different horizontal planes for double-sided machining; Step 2, perform double-sided machining of deep holes: Start the tool to rotate the entire lathe. At this time, the two groups of cutting blades 234 machine deep holes with two hole diameters on the workpiece surface; Step 3, store the tool and lock it: After machining, rotate the cylindrical bolt 231 in the reverse direction, and rotate the side double-sided turning tool assembly 23 as a whole downward and store it inside the side storage groove 20 of the tool holder. On the surface of the turning tool 233, a locking operation is performed through the screwing sleeve bolt 3 installed through the circular hole 2330. The hand grabs the screwing sleeve bolt 3 and rotates it 90° to the left or right, so that the locking push rods 31 on both sides of the screwing sleeve bolt 3 are limited by the reserved arc-shaped groove 30 and move relatively to both sides respectively, and insert into the inside of the locking groove 201 to achieve locking; Step 4, overall storage of the turning tool and chip cleaning: When it is necessary to store the turning tool holder 2 as a whole in the inner cavity of the turning tool holder receiving groove 120, ensure that the first electromagnetic block 24 and the second electromagnetic block 241 are energized. At this time, the first electromagnetic block 24 generates a repulsive force on the second electromagnetic block 241, pushing the turning tool holder 2 as a whole to protrude outward. After the turning tool holder 2 is completely pushed out, the chips accumulated in the inclined plane formed by the curved surface inclined groove 21 and the turning tool holder 2 can be cleaned. At the same time, the chips in the cavity part of the side storage groove 20 of the tool holder can also be inspected and cleaned. After cleaning, the turning tool holder 2 as a whole is recycled into the inner cavity of the turning tool holder receiving groove 120 to ensure the efficient storage of each component when the turning tool is idle, without the need for disassembly and separate storage.

[0044] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A combined double-sided turning tool for deep hole machining on a lathe, comprising a tool bar (1) and a turning tool holder (2) movably mounted on the upper end thereof, characterized in that: The tool rod (1) is composed of a clamping portion (11) and a receiving portion (12), and curved inclined grooves (21) are respectively provided on both sides of the turning tool seat (2), and tool seat side receiving grooves (20) are respectively provided on the other two opposite sides of the turning tool seat (2), and a side double-sided turning tool assembly (23) is movably installed inside each group of the tool seat side receiving grooves (20), and two groups of the side double-sided turning tool assemblies (23) are provided, and a center thread drill (22) is provided on the central inner surface of the upper end of the turning tool seat (2); The side double-sided turning tool assembly (23) comprises a turning tool (233), the inner wall of the turning tool (233) is provided with a circular hole (2330) and a limiting T-shaped slot (23300), the circular hole (2330) is provided on the upper inner wall of the turning tool (233), a screw sleeve bolt (3) is provided inside the circular hole (2330), a cylindrical slot is provided on the central inner wall of the screw sleeve bolt (3); a central limiting convex is fixedly installed on the inner cavity bottom surface of the circular hole (2330), and a central limiting convex is fixedly installed on the inner cavity bottom surface of the circular hole (2330). The outer surface of the central limiting convex column (2331) is movably connected to the inner surface of the cylindrical groove provided on the central inner wall of the screw sleeve bolt (3); the outer ring surface of the screw sleeve bolt (3) is rotatably connected to the inner surface of the circular hole (2330); reserved arc grooves (30) are respectively provided on the inner walls on both sides of the screw sleeve bolt (3); the reserved arc grooves (30) are in the form of an inwardly concave curved groove structure; the inner surface of the reserved arc groove (30) is movably abutted against a locking push rod (31); The locking push rods (31) are provided in two groups and are symmetrically distributed about the central axis of the screw sleeve bolt (3); one end of the two groups of locking push rods (31) close to the screw sleeve bolt (3) is provided with a rounded corner, the outer surface of the rounded corner is movably abutted against the inner surface of the reserved arc groove (30), and the outer surface of the locking push rod (31) is movably connected to the inner surface of the limiting T-shaped groove (23300); A fixed connecting piece (311) is fixedly mounted on the upper surface of the locking push rod (31); the upper outer surface of the fixed connecting piece (311) is movably connected to the inner top surface of the limiting T-shaped slot (23300); an elastic block (312) is fixedly connected to the outer side surface of the fixed connecting piece (311); the other end of the elastic block (312) is fixedly connected to a blocking block (313); and the blocking block (313) is fixedly mounted on the inner top surface of the limiting T-shaped slot (23300); Locking grooves (201) are respectively provided on the inner walls of both sides of the knife seat side storage groove (20), and the inner surface of the locking groove (201) is movably plugged into the outer surface of the locking push rod (31).

2. The combined double-sided turning tool for deep hole machining on a lathe according to claim 1, characterized in that: The side double-sided turning tool assembly (23) further comprises a column bolt (231) and a threaded fastening base plate (232); the threaded fastening base plate (232) is detachably connected to the turning tool (233); the inner surface of the threaded fastening base plate (232) is threadedly connected to the outer surface of the column bolt (231); and both ends of the column bolt (231) penetrate the inner wall of the curved bevel groove (21) and are threadedly connected thereto.

3. The combined double-sided turning tool for deep hole machining on a lathe according to claim 2, characterized in that: A limiting installation groove is provided at one end of the turning tool (233) away from the threaded fastening base plate (232), a blade (234) is fixedly mounted on the inner side of the limiting installation groove by means of bolts, and the turning tool (233) is movably mounted on the inner side of the storage groove (20) on the tool holder side.

4. The combined double-sided turning tool for deep hole machining on a lathe according to claim 3, characterized in that: The turning tools (233) and the blades (234) are each provided in two groups, and the two groups of the turning tools (233) and the blades (234) are relatively distributed.

5. The combined double-sided turning tool for deep hole machining on a lathe according to claim 1, characterized in that: A turning tool holder receiving groove (120) is provided on the central inner wall of the receiving portion (12); the inner surface of the turning tool holder receiving groove (120) is movably connected to the outer surface of the turning tool holder (2); an electromagnetic block 1 (24) is fixedly mounted on the inner cavity bottom surface of the turning tool holder receiving groove (120); an electromagnetic block 2 (241) is electromagnetically connected above the electromagnetic block 1 (24); and the electromagnetic block 2 (241) is fixedly mounted on the lower bottom surface of the turning tool holder (2).

6. The combined double-sided turning tool for deep hole machining on a lathe according to claim 5, characterized in that: A telescopic sleeve rod (242) and a return spring (243) are provided on both sides of the electromagnetic block 1 (24); the lower ends of the telescopic sleeve rod (242) and the return spring (243) are fixedly connected to the bottom surface of the inner cavity of the lathe tool holder accommodating groove (120); the upper end outer surfaces of the telescopic sleeve rod (242) and the return spring (243) are respectively fixedly connected to the bottom surface of the lathe tool holder (2); and the return spring (243) is slidably sleeved on the outside of the telescopic sleeve rod (242).

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