High-efficiency inner circle machining cutter handle

Abstract

The utility model relates to the technical field of lathe machining, in particular to a high-efficiency inner circle machining cutter handle. Comprising a cutter handle, a mounting frame is fixedly arranged at one end of the cutter handle, two mounting grooves are formed in the positions, away from the mounting frame, of the cutter handle, and the distances between the two mounting grooves and the mounting frame are different. In the process that the threaded rod is rotated to adjust the position of the U-shaped frame in the mounting groove, the U-shaped frame drives the end portion of the turning tool in the U-shaped frame to move synchronously so as to assist a worker in adjusting the cutting angle and the cutting depth of the turning tool, and meanwhile when the worker needs to replace the abraded turning tool, the end portion of the abraded turning tool is pulled out of the U-shaped frame, so that the worker can replace the abraded turning tool conveniently. When the turning tool is replaced, the end of the new turning tool is inserted into the U-shaped frame, so that the cutting angle and the cutting depth of the new turning tool are completely consistent with those of the original turning tool, the cutting angle and the cutting depth of the new turning tool do not need to be adjusted again, and the time consumed for replacing the turning tool is shortened.

Description

TECHNICAL FIELD

[0001] The utility model relates to lathe processing technical field, and concretely relates to a high -efficient internal circle processing tool holder. BACKGROUND

[0002] With the development of industry, the increase of output, improving the production efficiency of workpiece is also the most important, when using lathe on lathe 2 to a kind of pipe-shaped workpiece 4 is turned inside circle, the cutting depth of lathe 2 is not too much once, the reason is that the cutting depth of lathe 2 is greater, the cutting force is greater, the impact force that tool is subjected is also greater, it is easy to cause the wear and tear and damage of tool, simultaneously, the cutting depth of lathe 2 is too large possibly causes the vibration and cutting force of cutting process, thereby influence workpiece processing stability and cutting quality, so to reach the internal circle size of processing, often need twice or even multiple times to feed.

[0003] The current twice feeding mode for workpiece 4 is as follows: first, the cutting depth of lathe 2 is adjusted to half of the predetermined cutting depth of workpiece 4, so that the lathe 2 is once fed to turn the internal circle of workpiece 4, and then the cutting depth of the lathe 2 is adjusted to the predetermined cutting depth of the workpiece 4, so that the lathe 2 is twice fed to cut the area cut by the lathe 2 in the first feeding process, and the actual cutting depth of the lathe 2 in the second feeding process is half of the predetermined cutting depth of the workpiece 4, so as to avoid the lathe 2 from being severely worn due to excessive cutting depth during feeding, and to ensure the stability and cutting quality of internal circle machining.

[0004] However, the twice feeding mode for turning the internal circle of workpiece 4 has the following defects: the twice feeding takes a long time, and the cutting depth of the lathe 2 needs to be adjusted before the second feeding, which further increases the time consumed for turning the internal circle of workpiece 4, resulting in low efficiency of machining workpiece 4. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a high-efficiency internal circle machining tool holder to solve the problems raised in the background technology.

[0006] To achieve the above object, the utility model provides a kind of high-efficiency inner circle processing tool holder, including tool holder, the one end of tool holder is fixedly arranged with mounting bracket, and two installation grooves are opened in the position of tool holder away from mounting bracket, the spacing of two installation grooves and mounting bracket is different, the one end of two turning tools is arranged in the inside of two installation grooves respectively, wherein the length of turning tool away from mounting bracket that extends installation groove is less than the length of turning tool close to mounting bracket that extends installation groove, two threaded holes are opened in the side of installation groove, the other end of threaded hole penetrates the outside wall of tool holder, and the inside of threaded hole is screw-connected with fastening screw, the one end of fastening screw extends to the inside of installation groove and is contacted with the side of turning tool, the inside of two installation grooves is provided with auxiliary adjusting mechanism, and the auxiliary adjusting mechanism is used to limit the position of turning tool in installation groove.

[0007] As further improvement of the technical solution, the auxiliary adjusting mechanism includes a U-shaped frame in contact with one end of the turning tool, two rotating blocks are symmetrically hinged to the side of the U-shaped frame away from the turning tool, a threaded rod is rotatably arranged on the side of the rotating block away from the U-shaped frame, a nut is threadedly connected to the threaded rod, two extension shafts are fixedly connected to the side wall of the nut in a central symmetric manner, and the other end of the extension shaft is rotatably connected to the inner wall of the installation groove.

[0008] As further improvement of the technical solution, the auxiliary adjusting mechanism further includes a positioning plate fixedly arranged in the inside of the installation groove, the positioning plate is arranged between the two threaded rods, a round head end cap is arranged on the side of the positioning plate close to the U-shaped frame, and the round head of the round head end cap is in contact with the side of the U-shaped frame away from the turning tool.

[0009] As further improvement of the technical solution, the side of the round head end cap away from the U-shaped frame is coaxially fixed with a slide rod, the other end of the slide rod slidably penetrates the side wall of the positioning plate, a spring is arranged between the round head end cap and the positioning plate and sleeved on the slide rod, and the spring pushes the round head end cap away from the positioning plate.

[0010] As further improvement of the technical solution, the workpiece is arranged on the side of the tool holder away from the mounting bracket, and the axis of the workpiece and the axis of the tool holder are on the same straight line.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] 1、The high-efficiency inner circle processing tool holder, two turning tools are installed in the inside of two installation grooves on tool holder respectively, and the length of two turning tools extending installation groove is kept different, so that two turning tools can be used to turn inner circle of workpiece in turn in the process of tool feeding of tool holder once, the number of tool feeding is reduced, the cutting depth of turning tool does not need to be adjusted repeatedly, and the efficiency of turning inner circle of workpiece by lathe is improved.

[0013] 2、The high-efficiency inner circle processing tool handle, in the process of rotating the threaded rod to adjust the position of the U-shaped frame in the mounting groove, the U-shaped frame drives the end of the turning tool inside to move synchronously, thereby assisting the worker to adjust the cutting angle and cutting depth of the turning tool, and when the worker needs to replace the worn turning tool, the end of the worn turning tool is pulled out from the U-shaped frame, and the end of the new turning tool is inserted into the inside of the U-shaped frame, so that the cutting angle and cutting depth of the new turning tool can be kept consistent with the original turning tool, without the need to adjust the cutting angle and cutting depth of the new turning tool again, thereby shortening the time consumed for replacing the turning tool. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 is a structure schematic view of the combination of the utility model and the workpiece;

[0015] Fig. 2 is a whole structure schematic view of the utility model;

[0016] Fig. 3 is a sectional view of the whole structure of the utility model;

[0017] Fig. 4 is a sectional view of the whole structure of the utility model;

[0018] Fig. 5 is a partial structure schematic view of the auxiliary adjusting mechanism of the utility model;

[0019] Fig. 6 is a partial structure schematic view of the auxiliary adjusting mechanism of the utility model.

[0020] The meanings of various reference numerals in the drawings are as follows:

[0021] 1, tool handle; 11, mounting groove; 12, threaded hole; 13, mounting frame;

[0022] 2, turning tool;

[0023] 3, fastening screw;

[0024] 4, workpiece;

[0025] 5, auxiliary adjusting mechanism; 51, U-shaped frame; 52, rotating block; 53, threaded rod; 54, nut; 55, extension shaft; 56, positioning plate; 57, sliding rod; 58, round head end cap; 59, spring. DETAILED DESCRIPTION

[0026] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0027] Embodiment 1

[0028] Please refer to Figs. 1-3 The present embodiment aims to provide a high-efficiency inner circle machining tool handle, which comprises a tool handle 1, the tool handle 1 is a round bar structure, one end of the tool handle 1 is fixedly provided with a mounting rack 13, the mounting rack 13 is fixedly installed on the tool rest of the lathe, that is, the tool handle 1 is fixedly installed on the tool rest of the lathe through the mounting rack 13, two mounting grooves 11 are formed on the tool handle 1 away from the mounting rack 13, the spacing between the two mounting grooves 11 and the mounting rack 13 is different, one end of the two turning tools 2 is arranged in the two mounting grooves 11 respectively, the side wall of the turning tool 2 and the side wall of the mounting groove 11 are in sliding contact, the two sides of the turning tool 2 contacting the side wall of the mounting groove 11 and the axis of the tool handle 1 are parallel, while the side wall of the turning tool 2 perpendicular to the axis is not in contact with the side wall of the mounting groove 11, wherein the length of the turning tool 2 away from the mounting rack 13 extending out of the mounting groove 11 is less than the length of the turning tool 2 close to the mounting rack 13 extending out of the mounting groove 11, the end of the turning tool 2 extending out of the mounting groove 11 is the blade part of the turning tool 2, meanwhile, two threaded holes 12 are formed on one side of the mounting groove 11, the two threaded holes 12 are arranged according to the axis direction of the mounting groove 11, the other end of the threaded hole 12 penetrates the outer side wall of the tool handle 1, and the threaded hole 12 and the inside of the mounting groove 11 are in communication, a fastening screw 3 is threadedly connected in the inside of the threaded hole 12, one end of the fastening screw 3 extends into the inside of the mounting groove 11 and contacts one side of the turning tool 2, the two ends of the fastening screw 3 push the side wall of the turning tool 2, then the mounting groove 11 blocks the turning tool 2, so that the turning tool 2 is fixed in the mounting groove 11, in this way, one end of the turning tool 2 is fixed in the corresponding mounting groove 11, after the worker clamps and fixes one end of the circular pipe-shaped workpiece 4 on the chuck of the lathe, the workpiece 4 is arranged on the side of the tool handle 1 away from the mounting rack 13, and the axis of the workpiece 4 and the axis of the tool handle 1 are on the same straight line, an inner collecting groove corresponding to the position of the mounting groove 11 is formed on the tool handle 1, and one end of the fastening screw 3 located outside the mounting groove 11 is located in the corresponding inner collecting groove, so as to avoid the fastening screw 3 hindering the tool handle 1 extending into the inside of the workpiece 4.

[0029] In the process of turning the inner circle of the workpiece 4, assuming that the predetermined cutting depth of the turning tool 2 to the workpiece 4 is 2.5 mm, the worker first controls the lathe to drive the chuck and the workpiece 4 to rotate, and then controls the tool holder to drive the tool shank 1 and the two turning tools 2 to slowly approach the workpiece 4. Since the spacing between the two installation grooves 11 and the end of the tool shank 1 is different, the spacing between the two turning tools 2 and the tool shank 1 is also different. When the tool holder drives the two turning tools 2 to approach the workpiece 4, the two turning tools 2 will contact the rotating workpiece 4 in turn. The turning tool 2 that contacts the workpiece 4 first has a shorter length protruding from the corresponding installation groove 11, and the cutting depth of this turning tool 2 is smaller, which is 1.25 mm. The turning tool 2 that contacts the workpiece 4 later has a longer length protruding from the corresponding installation groove 11, and the cutting depth of this turning tool 2 is larger, which is 2.5 mm. After the turning tool 2 with a cutting depth of 1.25 mm turns the inner circle of the workpiece 4, the turning tool 2 with a cutting depth of 2.5 mm turns the area of the workpiece 4 that has been turned. In this process, the actual cutting depth of the turning tool 2 with a cutting depth of 2.5 mm is the difference between the cutting depths of the two turning tools 2, which is 1.25 mm in thickness. Compared with the traditional method of using one turning tool 2 to turn the inner circle of the workpiece 4 twice, the present device uses two turning tools 2 to turn the inner circle of the workpiece 4 in turn during the process of one-time feeding of the tool shank 1, which reduces the number of feeding times and eliminates the need to repeatedly adjust the cutting depth of the turning tool 2, thereby significantly improving the efficiency of the lathe in turning the inner circle of the workpiece 4.

[0030] When the lathe turns the inner circle of the workpiece 4 by the turning tool 2, in order to ensure the turning quality of the workpiece 4 by the turning tool 2, the worker needs to adjust the cutting angle and cutting depth of the turning tool 2 to the workpiece 4, that is, adjust the position of the turning tool 2 in the corresponding installation groove 11. In order to facilitate the worker to adjust the position of the turning tool 2 in the corresponding installation groove 11, an auxiliary adjusting mechanism 5 is arranged in the inside of each of the two installation grooves 11. The auxiliary adjusting mechanism 5 is used to limit the position of the turning tool 2 in the installation groove 11, control the insertion length of the turning tool 2 in the installation groove 11, and thus control the length of one end of the turning tool 2 protruding from the installation groove 11. The structure of the auxiliary adjusting mechanism 5 will be described in detail below with reference to Figs. 4-6The auxiliary adjusting mechanism 5 comprises a U-shaped frame 51 in contact with one end of the turning tool 2, the U-shaped frame 51 is slidingly arranged in the mounting groove 11, and the end of the mounting groove 11 into which the turning tool 2 is inserted is arranged in a shape matching the internal space of the U-shaped frame 51, after the turning tool 2 is inserted into the U-shaped frame 51, there is no gap between the turning tool 2 and the U-shaped frame 51, and two rotating blocks 52 are symmetrically hinged on the side of the U-shaped frame 51 away from the turning tool 2, i.e. the rotating blocks 52 are arranged at the middle position of the side of the U-shaped frame 51 away from the turning tool 2, a threaded rod 53 is rotationally arranged on the side of the rotating block 52 away from the U-shaped frame 51, the other end of the threaded rod 53 is coaxially fixed with an internal hexagonal head, a worker can rotate the threaded rod 53 by using a wrench to rotate the internal hexagonal head, a nut 54 is threadedly connected on the threaded rod 53, two extension shafts 55 are fixedly connected on the side wall of the nut 54 in a central and symmetrical manner, the other end of the extension shaft 55 is rotationally connected with the inner wall of the mounting groove 11, when a worker needs to adjust the cutting angle of the turning tool 2, the worker rotates one of the threaded rods 53, the threaded rod 53 moves along the axis direction of the threaded rod 53 through the threaded connection between the threaded rod 53 and the nut 54, the moving threaded rod 53 pushes the U-shaped frame 51 through the corresponding rotating block 52, the U-shaped frame 51 rotates around the connection between the other rotating block 52 and the U-shaped frame 51, the rotating U-shaped frame 51 drives the end of the turning tool 2 inside it to rotate, so as to adjust the cutting angle of the turning tool 2, when the worker needs to adjust the cutting depth of the turning tool 2, the worker alternately rotates the two threaded rods 53, i.e. the worker rotates one threaded rod 53 by an angle, and then rotates the other threaded rod 53, so that the two threaded rods 53 drive the U-shaped frame 51 to move away from the nut 54 along the axis direction of the threaded rod 53, the moving U-shaped frame 51 drives the end of the turning tool 2 inside it to move away from the nut 54, so as to adjust the length of the turning tool 2 extending out of the corresponding mounting groove 11, to achieve the purpose of conveniently adjusting the cutting depth of the turning tool 2, and in the process of the worker rotating the threaded rod 53 to adjust the cutting angle and the cutting depth of the turning tool 2, a ruler and a protractor are needed to measure the cutting angle and the cutting depth of the turning tool 2, to ensure that the cutting angle and the cutting depth of the turning tool 2 are adjusted to predetermined values.

[0031] After the U-shaped frame 51 and the turning tool 2 are adjusted to the predetermined position in the mounting groove 11, the U-shaped frame 51 is prone to shake in the mounting groove 11 due to the unstable quadrilateral structure formed by the two threaded rods 53, the U-shaped frame 51 and the two nuts 54, which makes it difficult for the U-shaped frame 51 to limit the turning tool 2 to the predetermined position in the mounting groove 11. To solve this problem, the auxiliary adjusting mechanism 5 further comprises a positioning plate 56 fixedly arranged inside the mounting groove 11. The positioning plate 56 is arranged between the two threaded rods 53 and is provided with a round head end cap 58 on the side close to the U-shaped frame 51. The round head of the round head end cap 58 is in contact with the side of the U-shaped frame 51 away from the turning tool 2. A slide rod 57 is coaxially fixed to the side of the round head end cap 58 away from the U-shaped frame 51. The other end of the slide rod 57 slides through the side wall of the positioning plate 56. A spring 59 is arranged between the round head end cap 58 and the positioning plate 56 and is sleeved on the slide rod 57. The spring 59 pushes the round head end cap 58 away from the positioning plate 56, so that the round head end cap 58 presses the U-shaped frame 51 away from the nut 54. When the round head end cap 58 presses the U-shaped frame 51, the two threaded rods 53 pull the U-shaped frame 51 through the corresponding rotating blocks 52, so that the U-shaped frame 51 cannot move away from the nut 54. At the same time, the elastic force of the spring 59 prevents the U-shaped frame 51 from moving close to the nut 54, avoiding the situation that the U-shaped frame 51 moves close to or away from the nut 54 due to the rotation of the two threaded rods 53. The stability of the U-shaped frame 51 inside the mounting groove 11 is improved, so that the U-shaped frame 51 can limit the turning tool 2 to the predetermined position in the mounting groove 11. The effect of the auxiliary adjusting mechanism 5 in assisting the worker to adjust the cutting angle and the cutting depth of the turning tool 2 is optimized.

[0032] After the adjustment of the cutting angle and the cutting depth of the turning tool 2 is completed, the worker successively screws the two fastening screws 3 into the corresponding threaded holes 12 deep, so that one end of the fastening screw 3 is in close contact with the turning tool 2, thereby fixing the turning tool 2 to the predetermined position in the mounting groove 11 and ensuring the stability of the turning tool 2 when turning the inner circle of the workpiece 4. When the turning tool 2 needs to be replaced due to serious wear caused by long-term use, the worker turns the two fastening screws 3 corresponding to the turning tool 2, so that the two fastening screws 3 are out of contact with the turning tool 2, and then removes one end of the turning tool 2 from the U-shaped frame 51 and the mounting groove 11. Thereafter, the worker inserts the end of the new turning tool 2 into the U-shaped frame 51, so that the end of the turning tool 2 is in close contact with the inner wall of the U-shaped frame 51, thereby quickly placing the turning tool 2 to the predetermined position in the mounting groove 11. After the worker fixes the position of the new turning tool 2 by turning the two fastening screws 3, the cutting angle and the cutting depth of the new turning tool 2 remain the same as those of the original turning tool 2, so that the worker does not need to adjust the cutting angle and the cutting depth of the new turning tool 2 again. The time consumed for replacing the turning tool 2 is shortened, and the efficiency of the lathe in turning the inner circle of the workpiece 4 is improved.

[0033] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency internal machining tool holder, comprising a tool holder (1), characterized in that: One end of the tool holder (1) is fixedly provided with a mounting bracket (13), and two mounting slots (11) are opened on the tool holder (1) away from the mounting bracket (13). The distance between the two mounting slots (11) and the mounting bracket (13) is different. One end of the two cutting tools (2) is respectively set inside the two mounting slots (11), wherein the length of the cutting tool (2) away from the mounting bracket (13) extending out of the mounting slot (11) is less than the length of the cutting tool (2) closer to the mounting bracket (13) extending out of the mounting slot (11). Two threaded holes (12) are provided on one side of the mounting groove (11). The other end of the threaded hole (12) passes through the outer wall of the tool holder (1). A fastening screw (3) is threaded inside the threaded hole (12). One end of the fastening screw (3) extends into the interior of the mounting groove (11) and contacts one side of the cutting tool (2). An auxiliary adjustment mechanism (5) is provided inside both mounting grooves (11). The auxiliary adjustment mechanism (5) is used to limit the position of the cutting tool (2) inside the mounting groove (11).

2. The high-efficiency internal circle machining tool holder according to claim 1, characterized in that: The auxiliary adjustment mechanism (5) includes a U-shaped frame (51) that contacts one end of the cutting tool (2). Two rotating blocks (52) are symmetrically hinged on the side of the U-shaped frame (51) away from the cutting tool (2). A threaded rod (53) is rotatably provided on the side of the rotating block (52) away from the U-shaped frame (51). A nut (54) is threaded onto the threaded rod (53). Two extension shafts (55) are centrally and symmetrically fixed on the side wall of the nut (54). The other end of the extension shaft (55) is rotatably connected to the inner wall of the mounting groove (11).

3. The high-efficiency internal circle machining tool holder according to claim 2, characterized in that: The auxiliary adjustment mechanism (5) also includes a positioning plate (56) fixedly installed inside the mounting groove (11). The positioning plate (56) is located between two threaded rods (53). A round-headed end cap (58) is provided on the side of the positioning plate (56) near the U-shaped frame (51). The round head of the round-headed end cap (58) contacts the side of the U-shaped frame (51) away from the cutting tool (2).

4. The high-efficiency internal circle machining tool holder according to claim 3, characterized in that: The round-headed end cap (58) is coaxially fixed with a slide rod (57) on the side away from the U-shaped frame (51). The other end of the slide rod (57) slides through the side wall of the positioning plate (56). A spring (59) is provided between the round-headed end cap (58) and the positioning plate (56) and is sleeved on the slide rod (57). The spring (59) pushes the round-headed end cap (58) away from the positioning plate (56).

5. The high-efficiency internal circle machining tool holder according to claim 1, characterized in that: The workpiece (4) is positioned on the side of the tool holder (1) away from the mounting bracket (13), and the axis of the workpiece (4) and the axis of the tool holder (1) are on the same straight line.

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