Double-tool-bit tool for lathe

Abstract

The utility model discloses a double-cutter-head cutter for a lathe, which relates to the technical field of cutters and particularly comprises a cutter handle, two cutter grooves are arranged at the bottom end of the cutter handle, cutter heads are connected in inner cavities of the cutter grooves through bolts, the cutter grooves are matched with the cutter heads, and annular grooves are arranged at the tail ends of screw portions of the bolts. An annular groove is formed in the handle, a positioning structure matched with the annular groove is arranged in the handle, a screwing groove is formed in the middle of a nut portion of the bolt, a plugging structure is arranged in an inner cavity of the screwing groove, a cooling pipe is fixed on one side of the handle, the positioning structure comprises a positioning rod movably connected with the handle, and the bottom end of the positioning rod is matched with the annular groove. According to the double-tool-bit tool for the lathe, the two tool bits can machine a workpiece at the same time, and the machining efficiency of the workpiece is improved; and the tool bit can be replaced by screwing the bolt, so that the tool can continue to work when the damaged tool bit is maintained, and the utilization rate of the tool is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting tools, in particular to a double-cutting tool for a lathe. Background Art

[0002] During the lathe processing, it is necessary to use a tool to cut the workpiece. At present, most CNC lathe machines on the market can be equipped with multiple processing tools, which leads to interference when a certain process of some products requires multiple tools for processing. The tools need to be changed frequently, which affects the processing efficiency. To address this problem, some double-headed tools are disclosed in the prior art, such as a double-headed tool disclosed in the authorized patent document with application number CN202221990201.7, including a tool handle, a tool head is formed at the front end of the tool handle, a first cutting portion is formed at the front end of the tool head, a first cutting portion is protruding outwardly along the radial direction of the tool head on the first cutting portion, a second cutting portion is formed on the surface of the tool head, a chip groove is formed on the surface of the tool head at a corresponding position of the second cutting portion, and a second cutting portion is protruding outwardly along the radial direction of the tool head on the second cutting portion.

[0003] When the above scheme is in use, the first cutting part and the second cutting part are arranged on different sides of the shank, so that when the tool is in use, the first cutting part and the second cutting part cannot be used at the same time, affecting the processing efficiency of the workpiece, and the above tool is an integrated structure. When the first cutting part or the second cutting part needs to be repaired, other parts of the tool cannot continue to be used, reducing the utilization rate of the tool; based on this, the present application proposes a double-head tool for a lathe. Utility Model Content

[0004] The utility model provides a double-head tool for a lathe, which solves the problem that the two heads of the double-head tool proposed in the above background technology cannot be used at the same time, affecting the workpiece processing efficiency; when a certain head needs to be repaired, other parts of the integrally formed tool cannot be used anymore, reducing the utilization rate of the tool.

[0005] The utility model provides the following technical solution: a double-cutter tool for a lathe, comprising a tool handle, wherein the bottom end of the tool handle is provided with two tool grooves, a tool head is connected to the inner cavity of the tool groove through a bolt, the tool groove is adapted to the tool head, an annular groove is provided at the end of the screw portion of the bolt, a positioning structure adapted to the annular groove is provided in the tool handle, a screw groove is provided in the middle of the nut portion of the bolt, a blocking structure is provided in the inner cavity of the screw groove, and a cooling pipe is fixed to one side of the tool handle;

[0006] The positioning structure comprises a positioning rod movably connected to the knife handle, the bottom end of the positioning rod is adapted to the annular groove, the positioning rod is fixedly connected to the knife handle through a spring 1, and a lifting rod is movably connected to the middle part of the top of the positioning rod, and the lifting rod is threadedly connected to the knife handle;

[0007] The blocking structure includes a blocking cover movably connected to the inner cavity of the screw groove, the blocking cover is fixedly connected to the screw groove through spring 2, a self-locking groove is provided on the inner side of the blocking cover, a ball is movably connected in the inner cavity of the self-locking groove, and the ball is movably connected to the screw groove through a connecting rod.

[0008] Preferably, a bolt hole adapted to the bolt is provided in the middle of the knife groove, a positioning groove is provided at the top of the bolt hole, the positioning structure is located in the inner cavity of the positioning groove, a positioning rod is movably connected to the bottom end of the positioning groove, a spring 1 is fixed in the middle of the positioning groove, the other end of the spring 1 is fixedly connected to the top of the positioning rod, a lifting rod is provided at the other end of the positioning groove, and an internal thread is provided at the top of the inner cavity of the positioning groove.

[0009] Preferably, one end of the connecting rod is movably connected to the screw groove, and the other end of the connecting rod is movably connected to the ball.

[0010] Preferably, both sides of the self-locking groove and the end thereof close to the connecting rod are arc-shaped structures protruding outwards, and the end of the self-locking groove away from the connecting rod is an arc-shaped structure recessed inwards.

[0011] Preferably, the outer surface of the bottom end of the positioning rod is wrapped with a buffer pad, and the top end of the lifting rod is provided with an external thread adapted to the internal thread, and the external thread is located below the internal thread.

[0012] Preferably, the cooling tube is a bent and shaped tube, and the number of the cooling tubes is the same as the number of the cutting heads.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The lathe uses a double-head tool. The two tool heads can process the workpiece at the same time, improving the processing efficiency of the workpiece. The tool is a split structure. The tool head can be replaced by screwing the bolts, so that when the damaged tool head is repaired, the tool can continue to work, improving the utilization rate of the tool.

[0015] 2. The double-head tool for the lathe can fix the position of the bolt through the setting of the positioning structure, so as to prevent the tool head of the double-head tool from loosening when in use, thereby improving the reliability of the double-head tool when in use; through the setting of the cooling pipe, the position of the spraying end of the cooling pipe can be adjusted according to demand, so that the cooling fluid can be sprayed to the processing part of the workpiece through the cooling pipe, which is convenient for cooling the tool head and the processing part of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front view of the structure of the utility model;

[0017] Figure 2 The utility model structure Figure 1Back side diagram;

[0018] Figure 3 The utility model structure Figure 1 Schematic cross-section;

[0019] Figure 4 This is a schematic diagram of the connection between the cutter head and the bolts of the utility model;

[0020] Figure 5 This is a schematic diagram of the explosion of the structural bolts of the utility model;

[0021] Figure 6 It is a schematic cross-sectional view of the structural bolt of the utility model.

[0022] In the figure: 1. knife handle; 2. knife head; 3. lifting handle; 4. cooling pipe; 5. bolt; 6. annular groove; 7. spring 1; 8. positioning rod; 9. lifting rod; 10. blocking cover; 11. spring 2; 12. self-locking groove; 13. connecting rod; 14. ball bearing. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] The utility model provides a double-cutter tool for a lathe, including a handle 1, two tool grooves are provided at the bottom end of the handle 1, bolt holes are provided in the inner cavity of the tool groove, and a tool head 2 is connected to the inner cavity of the tool groove through a bolt 5. When the double-cutter tool is in use, the handle 1 can drive the two tool heads 2 to move simultaneously when it moves, so that the workpiece can be processed twice at the same time, improving the processing efficiency of the workpiece, and the staff can replace the tool head 2 by screwing the bolt 5, so that when the damaged tool head 2 is repaired, the tool can continue to work, improving the utilization rate of the tool. The tool groove is adapted to the tool head 2, and when the double-cutter tool is in use, the tool groove can limit the tool head 2 to prevent the tool head 2 from moving, thereby ensuring the processing accuracy of the workpiece.

[0025] Two cooling tubes 4 are fixed on one side of the tool handle 1. The cooling tube 4 is a bent and shaped tube. Through the setting of the cooling tube 4, the staff can adjust the deflection angle of the end of the cooling tube 4 according to the needs, so that the cooling fluid can be sprayed onto the cutter head through the end of the cooling tube 4, and the cutting part of the workpiece and the cutter head are cooled, which is convenient for the use of the tool. In some embodiments of the present application, the cooling tube 4 is made of a spring tube disclosed in the authorized patent document with application number CN202320002978.6.

[0026] The bolt 5 includes a screw portion adapted to the bolt hole and a nut portion fixedly connected to the screw portion. An annular groove 6 is provided at one end of the screw portion away from the nut portion. A positioning groove is provided at the top of the bolt hole. The positioning structure is located in the inner cavity of the positioning groove. A positioning rod 8 is movably connected to the bottom end of the positioning groove. The bottom end of the positioning rod 8 is adapted to the annular groove 6. When the cutter head 2 is fixed to the handle 1 by the bolt 5, the annular groove 6 is located below the positioning rod 8. When the bottom end of the positioning rod 8 is inserted into the annular groove 6, the positioning rod 8 can limit the bolt 5 and fix the position of the bolt 5 in the bolt hole to prevent the bolt 5 from loosening, thereby preventing the cutter head 2 from being loosened. Loose, a spring 7 is fixed in the middle of the positioning groove, and the other end of the spring 7 is fixedly connected to the top of the positioning rod 8. Under the action of the spring 7 rebound force, the bottom end of the positioning rod 8 can be automatically inserted into the inner cavity of the annular groove 6. A lifting rod 9 is provided at the other end of the positioning groove. The lifting rod 9 is in a state of active connection with the middle of the top of the positioning rod 8. When the lifting rod 9 moves, it can drive the positioning rod 8 to move. The top of the inner cavity of the positioning groove is provided with an internal thread, and the top of the lifting rod 9 is provided with an external thread. The external thread is located below the internal thread. Through the setting of the internal thread and the external thread, the position of the lifting rod 9 can be fixed, which is convenient for the disassembly and assembly of the cutter head 2. A lifting handle 3 is fixed on the top of the lifting rod 9, and the staff can change the position of the lifting rod 9 by using the lifting handle 3.

[0027] From the above description of the positioning structure, it can be known that when the double-blade tool is in use, under the action of the rebound force of spring 7, the bottom end of the positioning rod 8 is inserted into the inner cavity of the annular groove 6, and the positioning structure limits the bolt 5 to prevent the bolt 5 from loosening, thereby ensuring the reliability of the fixation of the cutter head 2; and when the staff pulls up the lifting rod 9, the lifting rod 9 drives the positioning rod 8 to move upward, and when the lifting rod 9 is threadedly connected to the positioning groove through the internal thread and the external thread, the bottom end of the positioning rod 8 is completely separated from the annular groove, which is convenient for the staff to tighten the bolt.

[0028] The outer surface of the bottom end of the positioning rod 8 is wrapped with a buffer pad, which can be made of rubber. Through the setting of the buffer pad, the impact force between the positioning rod 8 and the bolt 5 when they contact can be reduced, and the reliability of the connection between the positioning rod 8 and the bolt 5 can be improved.

[0029] A screwing groove is provided in the middle of the nut portion of the bolt 5. When the bolt 5 is screwed, the staff can screw the bolt 5 with a screwdriver adapted to the screwing groove. A blocking structure is provided in the inner cavity of the screwing groove. The blocking structure includes a blocking cover 10 movably connected to the inner cavity of the screwing groove. The blocking cover 10 is fixedly connected to the screwing groove through a spring 11. A self-locking groove 12 is provided on the inner side of the blocking cover 10. A ball 14 is movably connected to the inner cavity of the self-locking groove 12. The ball 14 is movably connected to the screwing groove through a connecting rod 13, and one end of the connecting rod 13 is movably connected to the screwing groove, and the other end of the connecting rod 13 is movably connected to the ball 14. Both sides of the self-locking groove 12 and the end thereof close to the connecting rod 13 are arc-shaped structures convex outwardly, and the end of the self-locking groove 12 away from the connecting rod 13 is an arc-shaped structure concave inwardly. Through the setting of the self-locking groove 12, when the staff presses the blocking cover 10, the self-locking groove 12 can squeeze the ball 14, so that the ball 14 can move in the inner cavity of the self-locking groove 12, and when the ball 14 moves to the depression of the self-locking groove and releases the restriction on the blocking cover 10, the position of the blocking cover 10 can remain unchanged, and the blocking cover 10 is locked. At this time, a screwdriver adapted to the knob groove can be inserted into the screwing groove to facilitate the screwing of the bolt 5, and when the staff presses the blocking cover 10 again, the ball 14 moves out from the depression of the blocking cover 10, releases the restriction on the blocking cover 10, and the blocking cover 10 is unlocked. Under the action of the rebound force of the spring 11, the blocking cover 10 can seal the screwing groove to prevent the screwing groove from being blocked by debris generated during the workpiece processing.

[0030] When the double-blade tool is in use, there is no gap on the outer surface of the tool, which facilitates cleaning of the tool.

[0031] To sum up: when the lathe is used with a double-head tool, the tool handle 1 is fixed on the lathe. When the lathe drives the tool to process the workpiece, the two tool heads 2 can cut the workpiece at the same time, thereby improving the workpiece processing efficiency, and the cooling fluid can be sprayed onto the processing part of the workpiece through the cooling pipe 4, thereby cooling the workpiece and the tool head 2 at the same time. When the cutter head 2 needs to be replaced, the staff pulls up the lifting handle 3 that is compatible with the cutter head 2 to be replaced, and the lifting handle 3 drives the lifting rod 9 to move upward, and the lifting rod 9 drives the positioning rod 8 to move upward until the lifting rod 9 can no longer move upward, and then twists the lifting handle 3, and the lifting handle 3 drives the lifting rod 9 to rotate. The lifting rod 9 is threadedly connected to the positioning groove, and the position of the positioning structure is fixed. At this time, the positioning rod 8 is separated from the annular groove 6, and the restriction of the positioning structure on the bolt 5 is released. The staff inserts a screwdriver that is compatible with the screwing groove into the screwing groove and presses the blocking cover 10 so that the blocking cover 10 is locked. The staff uses the screwdriver to screw the bolt 5 to replace the cutter head 2. After the cutter head 2 is replaced, the staff presses the blocking cover 10 again to release the lock of the blocking cover 10. The blocking cover 10 can block the screwing groove to prevent debris from clogging the screwing groove during workpiece processing and facilitate the cleaning of debris.

[0032] The standard parts used in the utility model can be purchased from the market, and the special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art and will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and modifications can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A double-tip tool for a lathe, comprising a tool handle (1), characterized in that: The bottom end of the knife handle (1) is provided with two knife grooves, and the inner cavity of the knife groove is connected to the knife head (2) via a bolt (5), the knife groove is adapted to the knife head (2), the end of the screw rod portion of the bolt (5) is provided with an annular groove (6), the knife handle (1) is provided with a positioning structure adapted to the annular groove (6), the middle part of the nut portion of the bolt (5) is provided with a screwing groove, and the inner cavity of the screwing groove is provided with a blocking structure, and a cooling pipe (4) is fixed to one side of the knife handle (1); The positioning structure comprises a positioning rod (8) movably connected to the knife handle (1), the bottom end of the positioning rod (8) is adapted to the annular groove (6), the positioning rod (8) is fixedly connected to the knife handle (1) via a spring (7), and a lifting rod (9) is movably connected to the middle of the top of the positioning rod (8), and the lifting rod (9) is threadedly connected to the knife handle (1); The blocking structure comprises a blocking cover (10) movably connected to the inner cavity of the screw groove, the blocking cover (10) being fixedly connected to the screw groove via a second spring (11), a self-locking groove (12) being provided on the inner side of the blocking cover (10), a ball (14) being movably connected in the inner cavity of the self-locking groove (12), and the ball (14) being movably connected to the screw groove via a connecting rod (13).

2. A double-tip tool for a lathe according to claim 1, characterized in that: A bolt hole adapted to the bolt (5) is provided in the middle of the knife groove, a positioning groove is provided at the top of the bolt hole, the positioning structure is located in the inner cavity of the positioning groove, a positioning rod (8) is movably connected to the bottom end of the positioning groove, a spring (7) is fixed in the middle of the positioning groove, the other end of the spring (7) is fixedly connected to the top of the positioning rod (8), a lifting rod (9) is provided at the other end of the positioning groove, and an internal thread is provided at the top end of the inner cavity of the positioning groove.

3. The double-tip tool for a lathe according to claim 1, characterized in that: One end of the connecting rod (13) is movably connected to the screwing groove, and the other end of the connecting rod (13) is movably connected to the ball (14).

4. The double-tip tool for a lathe according to claim 1, characterized in that: Both sides of the self-locking groove (12) and one end thereof close to the connecting rod (13) are arc-shaped structures protruding outwards, and one end of the self-locking groove (12) away from the connecting rod (13) is an arc-shaped structure recessed inwards.

5. The double-tip tool for a lathe according to claim 2, characterized in that: The outer surface of the bottom end of the positioning rod (8) is wrapped with a buffer pad, and the top end of the lifting rod (9) is provided with an external thread adapted to the internal thread, and the external thread is located below the internal thread.

6. The double-tip tool for a lathe according to claim 1, characterized in that: The cooling tube (4) is a bent and shaped tube, and the number of the cooling tubes (4) is the same as the number of the cutter heads (2).

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