Cutter device and machine tool for machining gravity center offset shaft

Abstract

The invention relates to the technical field of machining equipment, in particular to a cutter device and a machine tool for machining a gravity center offset shaft, the cutter device comprises a cutter bar, a mounting piece and a driving mechanism, a cutter is fixedly arranged at one end of the cutter bar, and the other end of the cutter bar is slidably connected to a mounting seat of the mounting piece in the radial direction through a sliding plate and a sliding groove; the driving mechanism is connected to the mounting part and drives the cutter bar to radially slide relative to the mounting base, in addition, the transmission assembly comprises a multi-stage transmission shaft and a gear set, accurate radial displacement control is achieved, the cutter device is further provided with a balancing weight to balance unbalanced force generated when the cutter moves, and the effects of improving machining precision and efficiency and reducing cutter abrasion are achieved.

Description

Technical Field

[0001] The present application relates to the technical field of mechanical processing equipment, and in particular to a tool device and a machine tool for processing a gravity center offset shaft. Background Art

[0002] A center of gravity offset shaft part refers to a workpiece with a complex shape and structure, whose center of gravity does not coincide with the center of the shaft portion to be processed. When the related technology processes a workpiece with a center of gravity offset shaft, the workpiece needs to be clamped on the chuck of a lathe, and the center of its shaft portion coincides with the center of the chuck, but the center of gravity of the workpiece does not coincide with the center of rotation of the chuck. The greater the eccentricity value, the more serious the off-center load during rotation processing, and the more unstable the workpiece is during processing. In order to improve the stability of the workpiece during processing, it is necessary to add a counterweight on the opposite side of the workpiece's center of gravity offset, thereby offsetting the workpiece's center of gravity offset and improving the dynamic balance of the workpiece during rotation processing. However, the increase in the counterweight greatly increases the difficulty of the operation and reduces the efficiency of workpiece processing. Summary of the invention

[0003] In order to help improve the efficiency of workpiece processing, the present application provides a tool device and a machine tool for processing a center of gravity offset shaft.

[0004] In a first aspect, the present application provides a tool device for machining a gravity center offset shaft, which adopts the following technical solution: A tool device for machining a gravity center offset shaft comprises a tool rod, a mounting member and a driving mechanism, wherein a mounting handle is provided at one end of the mounting member and a mounting seat is provided at the other end, a tool is fixedly provided at one axial end of the tool rod, and the other axial end of the tool rod is slidably connected to the mounting seat in a radial direction, and the driving mechanism is connected to the mounting member and drives the tool rod to slide radially relative to the mounting seat.

[0005] By adopting the above technical solution, a mounting handle is provided at one end of the mounting part, and the mounting part is installed on the spindle of the processing machine tool through the mounting handle. The tool is installed at one end of the tool rod, and the other end is radially slidably set on the mounting seat of the mounting part. The driving mechanism drives the tool rod shaft to slide radially to perform radial feed processing. In this way, the tool can directly process a static, fixed, and offset shaft workpiece, which reduces the difficulty of the related technology of counterweight operation required for the rotation of the workpiece, and improves the processing efficiency and processing accuracy.

[0006] Optionally, a radially extending slide groove is provided at the end of the mounting seat away from the mounting handle, and a slide plate adapted to the slide groove is fixedly provided at the end of the tool rod away from the tool, and the slide plate is slidably disposed in the slide groove.

[0007] By adopting the above technical solution, a radially extending slide groove is provided on the mounting seat, the slide plate is adapted to the slide groove and is slidably arranged in the slide groove, and the tool rod is fixedly installed on the slide plate, which helps to improve the accuracy and reliability of radial feed of the tool rod.

[0008] Optionally, a transmission block is provided on a side of the slide away from the knife rod, and a transmission thread is provided on the transmission block along the length direction of the slide. The slide is transmission-connected to the driving mechanism via the transmission thread.

[0009] By adopting the above technical solution, a transmission block is provided on one side of the skateboard, and the transmission block is provided with a transmission thread along the length direction of the skateboard. The driving mechanism is connected to the skateboard through the transmission thread. The driving mechanism can smoothly drive the skateboard to slide in the slide groove, which helps to improve the stability and reliability of the tool feed on the tool rod, and then improve the processing accuracy of the workpiece.

[0010] Optionally, a counterweight block is provided on a side of the slide plate opposite to the knife rod, and the counterweight block is detachably mounted on the slide plate.

[0011] By adopting the above technical solution, the counterweight block is arranged on the side of the slide plate opposite to the tool rod, and the counterweight block is detachably installed on the slide plate, which helps to facilitate the adjustment of the dynamic balance of the tool rod relative to the center of rotation, thereby improving the smoothness of the tool rod's rotation and improving the processing accuracy of the workpiece.

[0012] Optionally, the driving mechanism includes a motor, a transmission box and a mounting block, the mounting block is fixedly connected to a machine tool spindle for processing a workpiece, the transmission box is fixedly mounted on a side of the mounting block away from the spindle, and the motor is fixedly mounted on the transmission box.

[0013] By adopting the above technical solution, the motor is installed on the transmission box, and the transmission box is fixedly installed on the main shaft of the machine tool through the mounting block, which helps to ensure the reliability of the motor and the transmission box rotating with the main shaft. At the same time, it is easy to separate the mounting parts from the drive mechanism to realize rapid tool replacement.

[0014] Optionally, the transmission box includes a box body, a first transmission shaft and a second transmission shaft, the first transmission shaft is rotatably arranged on the box body, a first synchronous pulley is fixedly installed on the first transmission shaft, the output shaft of the motor is transmission-connected to the first transmission shaft, the second transmission shaft is rotatably arranged on the box body and arranged parallel to the first transmission shaft, a second synchronous pulley is fixedly installed on the second transmission shaft, the first gear pulley and the second synchronous pulley are connected by a toothed belt transmission, and the second transmission shaft is transmission-connected to a transmission assembly arranged on the mounting seat.

[0015] By adopting the above technical scheme, the motor is installed on the transmission box, and the transmission box is fixedly installed on the main shaft of the machine tool through the mounting block, which helps to ensure the reliability of the motor and the transmission box rotating with the main shaft. The transmission box transmits the power of the motor to the first synchronous pulley through the first transmission shaft, and transmits the power of the first synchronous pulley to the second synchronous pulley through the toothed belt. The second synchronous pulley drives the second transmission shaft to rotate, and the second transmission shaft is connected to the transmission assembly, thereby driving the tool rod to move radially. The transmission box is driven by the first synchronous pulley and the second synchronous pulley, which helps to reduce the weight of the transmission box, thereby reducing the rotational eccentric load of the transmission box. The second transmission shaft is connected to the transmission assembly, which helps to quickly separate the transmission box and the transmission assembly, thereby improving the work efficiency of tool replacement.

[0016] Optionally, the transmission assembly includes a gear shaft, a third transmission shaft and a fourth transmission shaft, the gear shaft is rotatably set on the mounting seat, the third transmission shaft is arranged parallel to the gear shaft and rotatably set on the mounting seat, the third transmission shaft is coaxially fixed with an intermediate gear, the intermediate gear is meshingly connected to the gear shaft for transmission, the fourth transmission shaft is rotatably set on the mounting seat, the fourth transmission shaft is coaxially fixed with a transmission gear, the transmission gear is meshingly connected to the intermediate gear for transmission, and the gear shaft is transmission connected to the second transmission shaft.

[0017] By adopting the above technical solution, the transmission assembly is conducive to transmitting the power output by the second transmission shaft to the fourth transmission shaft where the transmission gear is located through the transmission of the gear shaft, the intermediate gear, and the transmission gear. The fourth transmission shaft is convenient for transmitting the power to the slide plate, so that the slide plate moves radially to achieve the feed or cutter release of the processing operation. The gear shaft is connected to the second transmission shaft, which is conducive to the separation or assembly of the transmission box and the transmission assembly, thereby improving the work efficiency of replacing the installation parts.

[0018] Optionally, the transmission assembly also includes a transmission screw rotatably arranged on the mounting seat, the transmission screw is arranged vertically with the fourth transmission shaft, a first bevel gear is coaxially fixedly arranged on the fourth transmission shaft, a second bevel gear is fixedly arranged at the end of the transmission screw near one end, the first bevel gear is meshed with the second bevel gear for transmission connection, and the transmission screw is connected to the transmission block through the transmission thread.

[0019] By adopting the above technical solution, the first bevel gear on the fourth transmission shaft is meshed with the second bevel gear on the transmission screw for transmission connection, thereby driving the transmission screw to rotate. The transmission screw and the transmission block are connected through a transmission thread. The rotation of the transmission screw drives the transmission block to move, thereby driving the slide plate to move radially, realizing the feed or let-down of the machining operation, and improving the machining range of the applicable workpieces of the tool device.

[0020] In a second aspect, the present application provides a machine tool for machining a gravity center offset shaft, which adopts the following technical solution: A machine tool for processing an offset center of gravity axis comprises: a base, a bed, a saddle, an operating table and a workbench, the bed being fixed on one side of the base, a rotatable spindle being provided on the bed along the X-axis direction, the spindle being slidably connected to the bed along the Z-axis, a tool device for processing the offset center of gravity axis being installed on the spindle, the saddle being slidably arranged on the base along the X-axis, the operating table being slidably arranged on the saddle along the Y-axis, the workbench being installed on the operating table, and the workbench fixedly clamping a workpiece to be processed.

[0021] By adopting the above technical scheme, the workpiece to be processed is fixedly clamped on the workbench, the operating table is slidably arranged on the saddle along the Y-axis, so as to facilitate the alignment of the workpiece to be processed, the saddle is slidably arranged on the base along the X-axis, so as to facilitate longitudinal feed or cutter letting when processing the workpiece, and the tool device is installed on the spindle to realize radial feed or cutter letting of the axis with offset center of gravity, thereby improving the processing efficiency and processing accuracy of the workpiece to be processed.

[0022] Optionally, the workbench can be rotatable around the Y-axis and the Z-axis and is arranged on the operating table, and a storage rack for placing a plurality of the mounting parts is provided on the operating table on a side opposite to the workbench.

[0023] By adopting the above technical solution, the worktable can be rotated around the Y-axis and Z-axis and set on the operating table, which helps to accurately align the workpiece before the tool device is processed, ensure the accurate positioning of the workpiece, and improve the processing accuracy. A storage rack is set on the operating table to facilitate the automatic replacement of different types of tools, reduce manual intervention, and improve tool change speed and processing efficiency.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. A mounting handle is provided at one end of the mounting piece, and the mounting piece is mounted on the spindle of the processing machine tool through the mounting handle. A tool is installed at one end of the tool bar, and the other end is radially slidably set on the mounting seat of the mounting piece. The driving mechanism drives the tool bar to slide radially to perform radial feed processing, which effectively solves the problems of low efficiency of manual adjustment and difficulty in completely avoiding workpiece vibration in automatic control in traditional processing methods, and improves processing efficiency and processing accuracy; 2. A counterweight block is provided on the side of the slide board opposite to the tool bar, and the counterweight block is detachably mounted on the slide board, which helps to facilitate the adjustment of the dynamic balance of the tool bar relative to the center of rotation, improve the stability of the tool bar's rotation operation, and further improve the processing accuracy of the workpiece; 3. The driving mechanism includes a motor, a transmission box and a mounting block. The transmission box is driven by a first synchronous pulley and a second synchronous pulley, which helps to reduce the weight of the transmission box, reduce the rotational eccentric load of the transmission box, improve the reliability and stability of the transmission system, and ensure the processing effect of the tool device in high-precision processing; 4. The transmission assembly is conducive to transmitting the power output by the second transmission shaft to the fourth transmission shaft where the transmission gear is located through the transmission of the gear shaft, the intermediate gear and the transmission gear. The fourth transmission shaft is convenient for transmitting the power to the slide plate, so that the slide plate moves radially to achieve the feed or cutter release of the processing operation. The gear shaft is connected with the second transmission shaft, which is conducive to the separation or assembly of the transmission box and the transmission assembly, thereby improving the work efficiency of replacing the installation parts; 5. The first bevel gear on the fourth transmission shaft is meshed with the second bevel gear on the transmission screw to drive the transmission screw to rotate. The transmission screw is connected to the transmission block through the transmission thread. The rotation of the transmission screw drives the transmission block to move, thereby driving the slide plate to move radially, realizing the feed or let-down of the machining operation, thereby increasing the machining range of the applicable workpiece of the tool device; 6. The workpiece to be processed is fixedly clamped on the workbench, and the operating table is set on the saddle along the Y-axis for easy alignment of the workpiece to be processed. The saddle is set on the base along the X-axis for easy longitudinal feed or cutter release when processing the workpiece. The tool device is installed on the spindle to realize radial feed or cutter release of the gravity center offset axis, which improves the processing efficiency and processing accuracy of the workpiece to be processed; 7. The workbench is set on the operating table to rotate around the Y-axis and Z-axis, which helps to accurately align the workpiece before the tool device is processed, ensure the accurate positioning of the workpiece, and improve the processing accuracy. A storage rack is set on the operating table to facilitate the automatic replacement of different types of tools, reduce manual intervention, and improve tool change speed and processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the structure of a tool device for machining a gravity center offset shaft disclosed in this application.

[0026] Figure 2 This is a schematic structural diagram of a machine tool for machining a gravity center offset shaft disclosed in this application.

[0027] Figure 3 This is a schematic diagram of the structure of the skateboard disclosed in this application from the top perspective.

[0028] Figure 4 This is a schematic structural diagram of the bottom perspective of the skateboard disclosed in this application.

[0029] Figure 5 For along Figure 1 Section view along line AA.

[0030] Figure 6 It is a full cross-sectional view of the tool device disclosed in the present application for machining a shaft with an offset center of gravity.

[0031] Figure 7 for Figure 6 A partial enlarged view of the middle I position.

[0032] A schematic structural diagram of a tool device for machining a gravity center offset shaft disclosed in the present application.

[0033] Description of reference numerals: 1. Cutter bar; 11. Cutter; 2. Mounting piece; 21. Mounting handle; 22. Mounting seat; 221. Slide; 23. Slide plate; 231. Transmission block; 2311. Transmission thread; 232. Guide; 233. Positioning groove; 234. Threaded hole; 24. Counterweight; 3. Driving mechanism; 31. Motor; 32. Transmission box; 321. Box body; 322. First transmission shaft; 323. Second transmission shaft; 3231. Slotted groove; 324. First synchronous pulley; 325. Second synchronous pulley; 326. Gear shaped belt; 33, mounting block; 34, transmission assembly; 341, gear shaft; 3411, straight head; 342, third transmission shaft; 343, fourth transmission shaft; 344, intermediate gear; 345, transmission gear; 346, first bevel gear; 347, transmission screw; 348, second bevel gear; 100, machine tool; 101, base; 102, bed; 1021, spindle; 103, saddle; 104, operating table; 105, workbench; 106, storage rack; 107, fixture; 108, workpiece. DETAILED DESCRIPTION

[0034] The following combination Figures 1 to 7 This application is described in further detail.

[0035] An embodiment of the present application discloses a tool device for machining a gravity center offset shaft.

[0036] A tool device for machining a shaft with an offset center of gravity. Figure 1 and Figure 2 , including a tool bar 1, a mounting member 2 and a driving mechanism 3. The mounting member 2 is a rotating body that rotates around the central axis of the mounting member 2. A mounting handle 21 is provided at one end of the mounting member 2. The shape of the mounting handle 21 is adapted to the inner hole of the spindle 1021. The mounting handle 21 can be inserted into the inner hole of the spindle 1021 of the machine tool 100 and is fixedly connected to the spindle 1021. A mounting seat 22 is provided at the other end of the mounting member 2. The mounting seat 22 is used to install the tool bar 1. A tool 11 is fixedly provided at one axial end of the tool bar 1. The tool bar 1 is axially The other end is connected to the mounting seat 22 by sliding in the radial direction. The driving mechanism 3 is connected to the mounting member 2 and drives the tool rod 1 to slide radially relative to the mounting seat 22, so that the tool 11 performs radial feed processing relative to the workpiece 108, or the tool 11 is separated from the workpiece 108 by the knife. In this way, the tool 11 can directly process the relatively static and fixed axial workpiece 108 with an offset center of gravity, which reduces the difficulty of the related technology of counterweight operation required for the rotation of the workpiece 108, and improves the processing efficiency and processing accuracy.

[0037] Reference Figure 1 , Figure 3 and Figure 4 The end of the mounting seat 22 away from the mounting handle 21 is provided with two radially extending slide grooves 221, and two guide parts 232 are provided on both sides of the width direction of the slide plate 23. The guide parts 232 are arranged along the length direction of the slide plate 23, and the guide parts 232 are adapted to the slide grooves 221. The two guide parts 232 can slide in the two slide grooves 221 respectively, and the slide plate 23 slides in the slide groove 221 through the two guide parts 232, thereby improving the guiding stability of the slide plate 23. A positioning groove 233 and a plurality of threaded holes 234 are provided along the length direction at one end of the slide plate 23 away from the guide part 232, and a positioning block is provided at one end of the tool rod away from the tool, and the positioning block is adapted to the positioning groove 233. The positioning groove 233 is used to install and position the tool rod 1, improve the reliability of the installation, and increase the ability of the tool rod 1 to withstand torque loads. The plurality of threaded holes 234 are used to install the tool rod 1 and the counterweight block 24, thereby improving the reliability of the installation of the tool rod 1, thereby helping to improve the accuracy and reliability of the radial feed of the tool rod 1.

[0038] Reference Figure 3 and Figure 4 A transmission block 231 is provided on the side of the slide plate 23 away from the tool rod 1, and the transmission block 231 is located between the two guide parts 232. A transmission thread 2311 is provided on the transmission block 231 along the length direction of the slide plate 23. The slide plate 23 is connected to the driving mechanism 3 through the transmission thread 2311. A transmission block 231 is provided on one side of the slide plate 23. The transmission block 231 is provided with a transmission thread 2311 along the length direction of the slide plate 23. The driving mechanism 3 is connected to the slide plate 23 through the transmission thread 2311. The driving mechanism 3 can smoothly drive the slide plate 23 to slide in the slide groove 221, which helps to improve the stability and reliability of the feed of the tool 11 on the tool rod 1, and then improve the processing accuracy of the workpiece 108.

[0039] Reference Figure 1 A counterweight 24 is provided on the side of the slide plate 23 opposite to the tool rod 1. The counterweight 24 is detachably mounted on the slide plate 23. In the embodiment of the present application, the counterweight 24 is fixed to the slide plate 23 by screws. Other embodiments of the present application can also be fixedly mounted on the slide plate 23 by snap-fitting, which helps to facilitate adjustment of the position of the counterweight 24 on the slide plate 23, thereby adjusting the dynamic balance between the tool rod 1 and the counterweight 24 relative to the center of rotation, thereby improving the stability of the rotation of the tool rod 1 and improving the processing accuracy of the workpiece 108.

[0040] Reference Figure 1 and Figure 5The driving mechanism 3 includes a motor 31, a transmission box 32 and a mounting block 33. The mounting block 33 is fixedly connected to a spindle 1021 of a machine tool 100 for processing a workpiece 108. A plurality of mounting holes are provided on the mounting block 33. The mounting holes are provided with screws and fastened to the end face of the spindle 1021. The transmission box 32 is fixedly mounted on a side of the mounting block 33 away from the spindle 1021. The motor 31 is fixedly mounted on the transmission box 32. The transmission box 32 is installed by the mounting block 33 and the motor 31 is installed on the transmission box 32, which helps to ensure the reliability of the motor 31 and the transmission box 32 rotating with the spindle 1021. At the same time, it is convenient to separate the mounting part 2 from the driving mechanism 3 to realize the rapid replacement of the tool 11.

[0041] Reference Figure 5 The transmission box 32 includes a box body 321, a first transmission shaft 322 and a second transmission shaft 323. Both ends of the first transmission shaft 322 are rotatably supported on the box body 321 by installing bearings. A first synchronous pulley 324 is fixedly installed on the first transmission shaft 322. The output shaft of the motor 31 is connected to the first transmission shaft 322 through a coupling. The second transmission shaft 323 is also rotatably arranged on the box body 321 through a bearing. The second transmission shaft 323 is arranged parallel to the first transmission shaft 322. A second synchronous pulley 325 is fixedly installed on the second transmission shaft 323. The first synchronous pulley 324 and the second synchronous pulley 325 are connected through a toothed belt 326. The second transmission shaft 323 is connected to the transmission assembly 34 arranged on the mounting seat 22. The motor 31 is installed on the transmission box 32, and the transmission box 32 is fixedly installed on the mounting seat 22 through the mounting block 33. On the spindle 1021 of the machine tool 100, it helps to ensure the reliability of the rotation of the motor 31 and the transmission box 32 with the spindle 1021. The transmission box 32 transmits the power of the motor 31 to the first synchronous pulley 324 through the first transmission shaft 322, and transmits the power of the first synchronous pulley 324 to the second synchronous pulley 325 through the toothed belt 326. The second synchronous pulley 325 drives the second transmission shaft 323, and the second transmission shaft 323 is connected to the transmission assembly 34, thereby driving the tool rod 1 to move radially. The transmission box 32 is driven by the first synchronous pulley 324 and the second synchronous pulley 325, which helps to reduce the weight of the transmission box 32, thereby reducing the rotational eccentric load of the transmission box 32. The second transmission shaft 323 is connected to the transmission assembly 34, which helps to quickly separate the transmission box 32 from the transmission assembly 34, thereby improving the work efficiency of replacing the tool 11.

[0042] Reference Figure 6 and Figure 7The transmission assembly 34 includes a gear shaft 341, a third transmission shaft 342 and a fourth transmission shaft 343. The gear shaft 341 is rotatably arranged on the mounting seat 22 through a bearing. The gear shaft 341 is coaxially arranged with the second transmission shaft 323. The third transmission shaft 342 is arranged parallel to the gear shaft 341 and is rotatably arranged on the mounting seat 22 through a bearing. An intermediate gear 344 is coaxially fixedly arranged on the third transmission shaft 342. The intermediate gear 344 is meshed and transmission-connected with the gear shaft 341. The fourth transmission shaft 343 is rotatably arranged on the mounting seat 22. A transmission gear 345 is coaxially fixedly arranged on the fourth transmission shaft 343. The transmission gear 345 is meshed and transmission-connected with the intermediate gear 344. The gear shaft 341 is transmission-connected with the second transmission shaft 323. It should be noted that one end of the gear shaft 341 that is transmission-connected with the second transmission shaft 323 is implemented in this application by arranging a straight head 3411 on either end of the two and an straight groove 3231 on the other end. The straight groove 3231 and the straight groove The head 3411 is adapted to the straight head 3411, and the straight groove 3231 is passed through the straight head 3411 to realize the transmission connection between the gear shaft 341 and the second transmission shaft 323. Through such a transmission structure, the transmission box 32 and the mounting part 2 can be quickly assembled and separated, and the tool 11 on the tool rod 1 can be quickly replaced to improve the tool changing efficiency. Of course, in other embodiments of the present application, one end of the gear shaft 341 and the second transmission shaft 323 for transmission connection can also be provided with a straight head at either end of the two, and a straight groove is provided at the other end. Any structure that can be quickly assembled and detached and can reliably transmit power is acceptable. The transmission assembly 34 is driven by the gear shaft 341, the intermediate gear 344, and the transmission gear 345, which helps to transmit the power output by the second transmission shaft 323 to the fourth transmission shaft 343 where the transmission gear 345 is located. The fourth transmission shaft 343 is convenient for transmitting power to the slide plate 23, thereby causing the slide plate 23 to move radially to realize the feed or cutter letting of the machining operation.

[0043] Reference Figure 6The transmission assembly 34 also includes a transmission screw 347, which is arranged vertically with the fourth transmission shaft 343. The transmission screw 347 is rotatably set on the mounting seat 22 through a bearing. The fourth transmission shaft 343 is coaxially fixed with a first bevel gear 346, and the end of the transmission screw 347 close to one end is fixed with a second bevel gear 348. The two ends of the transmission screw 347 are respectively fixed to the transmission screw 347 and the inner ring of the bearing through nuts, thereby limiting the axial movement of the transmission screw 347. The first bevel gear 346 is meshed with the second bevel gear 348 for transmission connection, and the transmission screw 347 is transmission-connected to the transmission block 231 through a transmission thread 2311. The first bevel gear 346 on the fourth transmission shaft 343 is connected to the transmission thread 2311. The second bevel gear 348 on the lever 347 is meshed with a transmission connection, thereby driving the transmission screw 347 to rotate. The transmission screw 347 is connected to the transmission block 231 through a transmission thread 2311. The transmission screw 347 rotates to drive the transmission block 231 to move, thereby driving the slide plate 23 to move radially, thereby realizing the feed or cutter release of the processing operation, and improving the processing range of the applicable workpiece 108 of the tool 11 device. It should be noted that an installation cavity is arranged inside the mounting seat 22, which is used to adapt to the gear shaft 341, the third transmission shaft 342 and the fourth transmission shaft 343 and related bearings on the transmission assembly 34. The mounting seat 22 can be assembled in modules and can be disassembled and assembled, which is convenient for related maintenance operations.

[0044] The embodiment of the present application also discloses a machine tool for machining a center of gravity offset shaft.

[0045] A machine tool for machining a gravity-offset axis, referring to Figure 1 and Figure 2 , including: a base 101, a bed 102, a saddle 103, an operating table 104 and a workbench 105, the bed 102 is fixed on one side of the base 101, a rotatable spindle 1021 is provided on the bed 102 along the X-axis direction, and the spindle 1021 is slidably connected with the bed 102 along the Z-axis, a tool device for machining a gravity center offset axis is installed on the spindle 1021, the saddle 103 is slidably arranged on the base 101 along the X-axis, the operating table 104 is slidably arranged on the saddle 103 along the Y-axis, and the workbench 105 is installed on the operating table 104, and the workpiece 108 to be processed is fixedly clamped on the working table 105. The operating table 104 is slidably set on the saddle 103 along the Y axis, which is convenient for aligning the workpiece 108 to be processed. The saddle 103 is slidably set on the base 101 along the X axis, which is convenient for longitudinal feed or cutter letting when processing the workpiece 108. The tool 11 device is installed on the spindle 1021 to realize radial feed or cutter letting of the center of gravity offset axis, thereby improving the processing efficiency and processing accuracy of the workpiece 108 to be processed.

[0046] Reference Figure 2The workbench 105 can be rotated around the Y axis and the Z axis and is arranged on the operating table 104. A storage rack 106 for placing a plurality of mounting parts 2 is arranged on the side opposite to the workbench 105 on the operating table 104. The workbench 105 can be rotated around the Y axis and the Z axis and is arranged on the operating table 104, which helps to accurately align the workpiece 108 before the tool 11 is installed for processing, ensures the accurate positioning of the workpiece 108, and improves the processing accuracy. The storage rack 106 is arranged on the operating table 104 to facilitate the automatic replacement of different types of tools 11, reduce manual intervention, and improve tool change speed and processing efficiency.

[0047] The working principle of the machine tool for processing the center of gravity offset axis in the embodiment of the present application is as follows: the workpiece 108 is clamped on the workbench 105 by the clamp 107, the axis portion of the workpiece 108 to be processed is oriented toward the direction of the spindle 1021, the saddle 103 is moved in the X-axis direction, the operating table 104 is moved in the Y-axis direction, the spindle 1021 is moved in the Z-axis direction, the workbench 105 is rotated around the Z-axis, and the workbench 105 is rotated around the Y-axis, so that the axis portion of the workpiece 108 to be processed on the workbench 105 is coaxial with the spindle 1021, the spindle 1021 is rotated, the tool 11 on the tool rod 1 is rotated around the axis portion, the motor 31 is started to drive the tool rod 1 to move radially and feed, and the axis portion of the workpiece 108 is processed. After the processing is completed, the motor 31 is reversed to drive the tool 11 on the tool rod 1 to move in a direction away from the workpiece 108 The operation table 104 moves along the Z-axis direction, so that the storage rack 106 moves toward the direction of the main shaft 1021, and the saddle 103 moves along the X-axis toward the direction of the main shaft 1021. When the main shaft 1021 is close to the empty tool position of the storage rack 106, the mounting handle 21 on the mounting member 2 is disengaged from the main shaft 1021, and the transmission connection between the second transmission shaft 323 and the gear shaft 341 is disengaged. The mounting member 2 is placed on the storage rack 106, and the above-mentioned actions are repeated. The main shaft 1021 is inserted from the storage rack 106 into the mounting member 2 to be used, and the mounting member 2 is equipped with the tool 11 to be used. The second transmission shaft 323 is connected with the gear shaft 341 on the mounting member 2, and the slot 3231 is connected to complete the tool changing action to process the stepped shaft or transition inclined surface of the workpiece 108.

[0048] The above are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application in sequence. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A tool device for machining a gravity center offset shaft, characterized in that: The invention comprises a knife bar (1), a mounting member (2) and a driving mechanism (3); a mounting handle (21) is provided at one end of the mounting member (2), and a mounting seat (22) is provided at the other end; a knife (11) is fixedly provided at one axial end of the knife bar (1), and the other axial end of the knife bar (1) is slidably connected to the mounting seat (22) in a radial direction; and the driving mechanism (3) is connected to the mounting member (2) to drive the knife bar (1) to slide radially relative to the mounting seat (22).

2. The tool device for machining a gravity center offset shaft according to claim 1, characterized in that: The end of the mounting seat (22) away from the mounting handle (21) is provided with a radially extending slide groove (221), and the end of the tool rod (1) away from the tool (11) is fixed with a slide plate (23) adapted to the slide groove (221), and the slide plate (23) is slidably arranged in the slide groove (221).

3. The tool device for machining a gravity center offset shaft according to claim 2, characterized in that: A transmission block (231) is provided on a side of the slide plate (23) away from the knife rod (1); a transmission thread (2311) is provided on the transmission block (231) along the length direction of the slide plate (23); and the slide plate (23) is transmission-connected to the driving mechanism (3) via the transmission thread (2311).

4. The tool device for machining a gravity center offset shaft according to claim 2, characterized in that: A counterweight block (24) is provided on the side of the slide plate (23) opposite to the knife rod (1), and the counterweight block (24) is detachably mounted on the slide plate (23).

5. The tool device for machining a gravity center offset shaft according to claim 3, characterized in that: The driving mechanism (3) comprises a motor (31), a transmission box (32) and a mounting block (33); the mounting block (33) is fixedly connected to a spindle (1021) of a machine tool (100) for processing; the transmission box (32) is fixedly mounted on a side of the mounting block (33) away from the spindle (1021); and the motor (31) is fixedly mounted on the transmission box (32).

6. The tool device for machining a gravity center offset shaft according to claim 5, characterized in that: The transmission box (32) comprises a box body (321), a first transmission shaft (322) and a second transmission shaft (323); the first transmission shaft (322) is rotatably arranged on the box body (321); a first synchronous pulley (324) is fixedly mounted on the first transmission shaft (322); the output shaft of the motor (31) is transmission-connected with the first transmission shaft (322); the second transmission shaft (323) is rotatably arranged on the box body (321) and is arranged parallel to the first transmission shaft (322); a second synchronous pulley (325) is fixedly mounted on the second transmission shaft (323); the first synchronous pulley (324) and the second synchronous pulley (325) are transmission-connected via a toothed belt (326); and the second transmission shaft (323) is transmission-connected with a transmission assembly (34) arranged on the mounting seat (22).

7. The tool device for machining a gravity center offset shaft according to claim 6, characterized in that: The transmission assembly (34) comprises a gear shaft (341), a third transmission shaft (342) and a fourth transmission shaft (343); the gear shaft (341) is rotatably arranged on the mounting seat (22); the third transmission shaft (342) is arranged in parallel with the gear shaft (341) and is rotatably arranged on the mounting seat (22); an intermediate gear (344) is coaxially fixedly arranged on the third transmission shaft (342); the intermediate gear (344) is meshingly connected to the gear shaft (341) for transmission; the fourth transmission shaft (343) is rotatably arranged on the mounting seat (22); a transmission gear (345) is coaxially fixedly arranged on the fourth transmission shaft (343); the transmission gear (345) is meshingly connected to the intermediate gear (344) for transmission; and the gear shaft (341) is transmission-connected to the second transmission shaft (323).

8. The tool device for machining a gravity center offset shaft according to claim 7, characterized in that: The transmission assembly (34) also includes a transmission screw (347) rotatably arranged on the mounting seat (22), the transmission screw (347) being arranged vertically with the fourth transmission shaft (343), the fourth transmission shaft (343) being coaxially fixedly provided with a first bevel gear (346), the end of the transmission screw (347) close to one end being fixedly provided with a second bevel gear (348), the first bevel gear (346) being meshed and transmission-connected with the second bevel gear (348), and the transmission screw (347) being transmission-connected with the transmission block (231) via the transmission thread (2311).

9. A machine tool for machining a gravity-offset axis, characterized in that: The invention comprises a base (101), a bed (102), a saddle (103), an operating table (104) and a workbench (105), wherein the bed (102) is fixed on one side of the base (101), a rotatable spindle (1021) is provided on the bed (102) along the X-axis direction, the spindle (1021) is slidably connected to the bed (102) along the Z-axis, a tool device for machining an offset center of gravity axis according to any one of claims 1 to 8 is installed on the spindle (1021), the saddle (103) is slidably arranged on the base (101) along the X-axis, the operating table (104) is slidably arranged on the saddle (103) along the Y-axis, the workbench (105) is installed on the operating table (104), and the workbench (105) is fixedly clamped with a workpiece (108) to be machined.

10. The machine tool for machining a gravity-offset axis according to claim 9, characterized in that: The workbench (105) is rotatably arranged on the operating table (104) around the Y axis and the Z axis, and a storage rack (106) for placing a plurality of the mounting parts (2) is provided on the side of the operating table (104) opposite to the workbench (105).

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