A lathe internal thread processing device

Abstract

The utility model discloses a kind of internal thread processing devices for lathe, including processing table, control panel and respectively be connected in control panel in the processing table are provided with fixed mechanism, turning mechanism and drive mechanism, wherein: fixed mechanism, turning mechanism and drive mechanism indirectly arrange turning mechanism and drive mechanism one side connection along left-right direction, so that turning mechanism can be reciprocating along left-right direction by drive mechanism, the turning mechanism further includes guide rail two fixedly installed on the upper surface of processing table, the turning slide one side is slidably connected with turning tool, by installing two mirror image symmetry equipment trapezoidal guide block on turning tool and side support frame, axial motion is converted into perpendicular to radial force of axial, so that turning tool automatically completes radial feed, without relying on the complex motion coordination control of multi-axis servo system of lathe, on the one hand, reduce the precision requirement of equipment, on the other hand, programming process is saved.

Description

Technical Field

[0001] This utility model relates to the technical field of internal thread processing equipment, and in particular to an internal thread processing device for lathes. Background Technology

[0002] When machining trapezoidal internal threads on a traditional turning lathe, complex motion control is required to achieve coordinated movement between the tool and the workpiece. On the one hand, the tool needs to move precisely back and forth along the workpiece axis to ensure the thread pitch accuracy. On the other hand, to machine the unique isosceles trapezoidal tooth profile of the trapezoidal thread, the tool also needs to simultaneously adjust the longitudinal feed. By controlling the radial depth of cut and trajectory of the tool, the tooth profile angle that meets the specifications is formed. This composite motion control of "back-to-back + longitudinal" places extremely high demands on the lathe's transmission accuracy, servo system response speed, and the coordination of each axis. Once the motion accuracy of any axis deviates, it can easily lead to problems such as thread asymmetry, out-of-tolerance pitch diameter, or excessive surface roughness, seriously affecting the thread's fit performance.

[0003] Meanwhile, when machining trapezoidal internal thread holes of different sizes, traditional turning lathes require operators to perform tedious programming procedures. Because the tooth profile parameters of trapezoidal internal threads have a strict mathematical relationship with the machining trajectory, the programming process requires inputting key parameters such as the major diameter, minor diameter, pitch, and tooth profile half-angle one by one, and precisely planning the composite motion trajectory of the tool. This not only demands that operators possess solid programming skills and a deep understanding of thread machining processes, but also easily leads to machining failures due to parameter input errors or unreasonable trajectory planning. Especially in multi-variety, small-batch production scenarios, frequent programming adjustments significantly increase auxiliary time, reduce production efficiency, and are difficult to adapt to the flexible production needs of modern manufacturing.

[0004] Therefore, this application provides an internal thread machining apparatus for a lathe. Utility Model Content

[0005] This utility model provides a lathe internal thread machining device, which can solve the problems of high equipment precision requirements and cumbersome programming when machining trapezoidal internal threads on lathes.

[0006] This utility model provides a lathe internal thread machining device, comprising: An internal thread machining mechanism includes a machining table. The machining table is equipped with a control panel and a fixing mechanism, a turning mechanism, and a driving mechanism respectively connected to the control panel. The fixing mechanism, turning mechanism, and driving mechanism are indirectly arranged in the left-right direction. The turning mechanism is connected to one side of the driving mechanism, so that the turning mechanism can reciprocate in the left-right direction through the driving mechanism. The turning mechanism also includes a guide rail two fixedly installed on the upper surface of the machining table. A slider two is slidably connected to the upper end of the guide rail two. A turning slide is fixedly installed on the top of the slider two. A turning tool is slidably connected to one side of the turning slide. A guiding mechanism, disposed on the outer wall of the turning mechanism, includes a side support frame fixedly installed on one side of the guide rail and a hydraulic damping rod fixedly installed on one side of the turning slide. One side of the hydraulic damping rod contacts the rear outer wall of the turning tool. Trapezoidal guide blocks are fixedly installed on both the side support frame and the front side of the turning tool. The two trapezoidal guide blocks are arranged in a mirror image symmetrically. Each trapezoidal guide block includes a fixed side fixedly installed on one side of the turning tool and the side support frame. Two moving grooves are formed on the outer wall of the fixed side. A short side and a long side are slidably connected inside the two moving grooves respectively. An inclined side is hinged between the ends of the short side and the long side.

[0007] In a lathe internal thread machining device according to one embodiment of the present invention, the upper surfaces of the short side and the long side are provided with size scales, and the outer wall of the turning tool and the outer wall of the side support frame are provided with through grooves that are adapted to the short side and the long side.

[0008] In a lathe internal thread machining device according to an embodiment of the present invention, the fixing mechanism includes a guide rail and a cylinder fixedly installed on the upper surface of the machining table. A slider is slidably connected to the upper wall of the guide rail. A movable seat is fixedly installed on the upper surface of the slider. The output shaft of the cylinder is fixedly connected to one side of the movable seat. A motor is fixedly installed on one side of the upper surface of the movable seat, and a support frame is fixedly installed on the other side. A rotating shaft is rotatably connected inside the support frame. A transmission belt is provided between one side of the rotating shaft and the output shaft of the motor, and a three-jaw chuck is fixedly installed on the other side.

[0009] In a lathe internal thread machining device according to an embodiment of the present invention, the driving mechanism includes a fixed seat fixedly installed on the upper surface of the machining table, a support frame two and a motor two fixedly installed on the upper surface of the fixed seat, a rotating shaft two rotatably connected inside the support frame two, a driven plate fixedly installed on one side of the rotating shaft two, a transmission belt provided between the driven plate and the output shaft of the motor two, and the other side of the rotating shaft two threadedly connected to the turning slide.

[0010] In a lathe internal thread machining device according to one embodiment of the present invention, the short side and the long side are both threadedly connected to the fixed side by fixing bolts.

[0011] In a lathe internal thread machining device according to one embodiment of the present invention, the control panel is provided with control buttons and a display screen on the outside, and the control panel is provided with a control circuit board and a battery inside. The control panel is electrically connected to the cylinder, motor one and motor two.

[0012] The technical solution provided in this application embodiment can include the following beneficial effects: This application designs an internal thread machining device for a lathe. By installing two trapezoidal guide blocks with mirror symmetry on the turning tool and the side support frame, during the internal thread machining process of the turning tool, since the two trapezoidal guide blocks have mirror symmetry trapezoidal structures, this relative sliding will be converted into radial force perpendicular to the axis through the guiding effect of the inclined surface, so that the turning tool can automatically complete the radial feed without relying on the multi-axis servo system of the lathe for complex motion coordination control. On the one hand, it reduces the accuracy requirements of the equipment, and on the other hand, it saves the tedious programming process.

[0013] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a structural schematic diagram of an embodiment of this application; Figure 2 This is a schematic diagram of the fixing mechanism in the embodiments of this application; Figure 3 This is a schematic diagram of the turning mechanism and the guiding mechanism in the embodiments of this application; Figure 4 This is a schematic diagram of the trapezoidal guide block in an embodiment of this application; Figure 5 This is a schematic diagram of the drive mechanism in the embodiments of this application. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0017] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0018] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0019] Example

[0020] like Figures 1 to 5 As shown, this application provides an internal thread machining apparatus for a lathe, comprising: The internal thread machining mechanism 100 includes a machining table 10, on which a control panel 11 and a fixing mechanism 20, a turning mechanism 30, and a driving mechanism 40 are respectively connected to the control panel 11. The fixing mechanism 20, the turning mechanism 30, and the driving mechanism 40 are arranged indirectly in a left-right direction. The fixing mechanism 20 includes a guide rail 21 and a cylinder 22 fixedly mounted on the upper surface of the machining table 10. A slider 23 is slidably connected to the upper wall of the guide rail 21, and a movable seat 24 is fixedly mounted on the upper surface of the slider 23. The cylinder 22... The output shaft is fixedly connected to one side of the moving base 24. A motor 25 is fixedly installed on one side of the upper surface of the moving base 24, and a support frame 26 is fixedly installed on the other side. A rotating shaft 27 is rotatably connected inside the support frame 26. A transmission belt is provided between one side of the rotating shaft 27 and the output shaft of the motor 25, and a three-jaw chuck 28 is fixedly installed on the other side. The workpiece to be processed is clamped by the three-jaw chuck 28. After the workpiece is fixed, the three-jaw chuck 28 with the workpiece is moved along the guide rail 21 to the turning mechanism 30 by the cylinder 22.

[0021] In an optional embodiment, the turning mechanism 30 is connected to the drive mechanism 40 on one side, so that the turning mechanism 30 can reciprocate in the left and right direction through the drive mechanism 40. The turning mechanism 30 also includes a guide rail 31 fixedly installed on the upper surface of the machining table 10. A slider 32 is slidably connected to the upper end of the guide rail 31. A turning slide 33 is fixedly installed on the top of the slider 32. A turning tool 34 is slidably connected to one side of the turning slide 33. When performing internal thread machining on the workpiece, the slider 32 drives the turning slide 33 and the turning tool 34 to move axially along the guide rail 31 to ensure the pitch accuracy of the thread. At the same time, the turning tool 34 can move radially along the turning slide 33 to form a tooth profile angle that meets the specifications. In an optional embodiment, the drive mechanism 40 includes a fixed base 41 fixedly mounted on the upper surface of the machining table 10. A support frame 42 and a motor 43 are fixedly mounted on the upper surface of the fixed base 41. A rotating shaft 44 is rotatably connected inside the support frame 42. A driven plate 45 is fixedly mounted on one side of the rotating shaft 44. A transmission belt is provided between the driven plate 45 and the output shaft of the motor 43. The other side of the rotating shaft 44 is threadedly connected to the turning slide 33. The rotating shaft 44 is driven to rotate by the operation of the motor 43. During the rotation of the rotating shaft 44, the turning slide 33 moves axially along the upper wall of the guide rail 31.

[0022] In one optional embodiment, the guide mechanism 50 includes a side support frame 52 fixedly mounted on one side of the guide rail 31 and a hydraulic damping rod 51 fixedly mounted on one side of the turning slide 33. One side of the hydraulic damping rod 51 contacts the rear outer wall of the turning tool 34. Trapezoidal guide blocks 53 are fixedly mounted on both the side support frame 52 and the front side of the turning tool 34. By setting the hydraulic damping rod 51 to support one side of the turning tool 34, the trapezoidal guide block 53 on the turning tool 34 side is always in close contact with the trapezoidal guide block 53 on the side support frame 52. The two trapezoidal guide blocks 53 are arranged in a mirror symmetrical manner. The trapezoidal guide block 53 includes a component fixedly mounted on the turning tool 34. 4. The fixed edge 54 on one side of the side support frame 52 has two movable grooves 55 on its outer wall. The two movable grooves 55 are respectively slidably connected to the short side 56 and the long side 57. The ends of the short side 56 and the long side 57 are both hinged to the inclined side 58. When machining the trapezoidal internal thread, the two trapezoidal guide blocks 53 are moved by moving the short side 56 and the long side 57 to adjust the inclined side 58 to the same inclined side angle as the required internal thread. During the internal thread machining of the workpiece, the trapezoidal guide block 53 on one side of the turning tool 34 moves axially synchronously with the turning tool 34, and its inclined surface slides relative to the inclined surface of the trapezoidal guide block 53 on one side of the side support frame 52. Since the two trapezoidal guide blocks 53 are mirror-symmetrical trapezoidal structures, this relative sliding will convert the axial motion into a radial force perpendicular to the axial direction through the guiding effect of the inclined plane, forcing the trapezoidal guide blocks 53 to drive the turning tool 34 to automatically complete the radial feed, i.e. the longitudinal movement. This eliminates the need to rely on the lathe's multi-axis servo system for complex motion coordination control, thereby reducing the precision requirements of the equipment and saving the tedious programming process.

[0023] In an optional embodiment, both the short side 56 and the long side 57 are threadedly connected to the fixed side 54 with fixing bolts. The fixing bolts lock the position of the short side 56 and the long side 57 after they have moved, preventing them from moving during the internal thread machining process.

[0024] In one optional embodiment, the control panel 11 is provided with control buttons and a display screen on the outside, and the control panel 11 is provided with a control circuit board and a battery inside. The control panel 11 is electrically connected to the cylinder 22, the first motor 25 and the second motor 43. The control panel 11 controls the start and stop of the cylinder 22, the first motor 25 and the second motor 43 to realize automatic internal thread processing.

[0025] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, and they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0026] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0027] The foregoing disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described above. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0028] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0029] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A lathe internal thread machining device, characterized in that, include: An internal thread machining mechanism includes a machining table. The machining table is equipped with a control panel and a fixing mechanism, a turning mechanism, and a driving mechanism respectively connected to the control panel. The fixing mechanism, turning mechanism, and driving mechanism are indirectly arranged in the left-right direction. The turning mechanism is connected to one side of the driving mechanism, so that the turning mechanism can reciprocate in the left-right direction through the driving mechanism. The turning mechanism also includes a guide rail two fixedly installed on the upper surface of the machining table. A slider two is slidably connected to the upper end of the guide rail two. A turning slide is fixedly installed on the top of the slider two. A turning tool is slidably connected to one side of the turning slide. A guiding mechanism, disposed on the outer wall of the turning mechanism, includes a side support frame fixedly installed on one side of the guide rail and a hydraulic damping rod fixedly installed on one side of the turning slide. One side of the hydraulic damping rod contacts the rear outer wall of the turning tool. Trapezoidal guide blocks are fixedly installed on both the side support frame and the front side of the turning tool. The two trapezoidal guide blocks are arranged in a mirror image symmetrically. Each trapezoidal guide block includes a fixed side fixedly installed on one side of the turning tool and the side support frame. Two moving grooves are formed on the outer wall of the fixed side. A short side and a long side are slidably connected inside the two moving grooves respectively. An inclined side is hinged between the ends of the short side and the long side.

2. The lathe internal thread machining device according to claim 1, characterized in that, The upper surfaces of both the short and long sides are provided with size scales, and the outer walls of the turning tool and the side support frame are provided with through grooves that are adapted to the short and long sides.

3. The lathe internal thread machining device according to claim 1, characterized in that, The fixing mechanism includes a guide rail and a cylinder fixedly installed on the upper surface of the processing table. A slider is slidably connected to the upper wall of the guide rail. A movable seat is fixedly installed on the upper surface of the slider. The output shaft of the cylinder is fixedly connected to one side of the movable seat. A motor is fixedly installed on one side of the upper surface of the movable seat, and a support frame is fixedly installed on the other side. A rotating shaft is rotatably connected inside the support frame. A transmission belt is provided between one side of the rotating shaft and the output shaft of the motor, and a three-jaw chuck is fixedly installed on the other side.

4. The lathe internal thread machining device according to claim 1, characterized in that, The drive mechanism includes a fixed base fixedly mounted on the upper surface of the machining table. A support frame 2 and a motor 2 are fixedly mounted on the upper surface of the fixed base. A rotating shaft 2 is rotatably connected inside the support frame 2. A driven plate is fixedly mounted on one side of the rotating shaft 2. A transmission belt is provided between the driven plate and the output shaft of the motor 2. The other side of the rotating shaft 2 is threadedly connected to a turning slide.

5. The lathe internal thread machining device according to claim 1, characterized in that, Both the short side and the long side are threadedly connected to the fixed side by fixing bolts.

6. The lathe internal thread machining device according to claim 3, characterized in that, The control panel is equipped with control buttons and a display screen on its outer side, and a control circuit board and a battery are installed inside the control panel. The control panel is electrically connected to the cylinder, motor one, and motor two.

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