A bushing milling device and method thereof

Abstract

The invention relates to the field of milling technology, and discloses a device and method for bushing milling, which solves the problem that the bushing needs to be clamped at the milled position so that the original bushing clamped position is exposed before further milling can begin. The device comprises a milling table, a control box is provided above the milling table, the control box and the milling table are fixedly connected by a plurality of support frames, two movable boxes are provided below the control box, the control box is equipped with a translation unit for driving the two movable boxes to translate, a clamping seat is provided on the side where the two movable boxes are close to each other, and a first rotating shaft is fixedly connected on the side where the two clamping seats are far away from each other; the movable box is equipped with a rotation mechanism for driving the first rotating shaft to rotate, and a plurality of positioning blocks are provided on the side where the two movable boxes are close to each other; there is no need to adjust the position of the bushing, so the milling mechanism can be kept in a working state, thereby improving the milling efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of milling, and in particular relates to a device and a method for bushing milling. Background Art

[0002] The bushing is a matching part used outside the mechanical parts to achieve the functions of sealing and wear protection. During the production process, the bushing needs to be milled on its outer surface by a milling device. In the prior art, some milling devices are mostly fixed in a single position when fixing the bushing.

[0003] But it is worth considering that the position where the bushing is clamped cannot be milled. After the milling of the position other than the position where the bushing is clamped is completed, the position of the bushing needs to be adjusted and the milled position of the bushing needs to be clamped to expose the original position where the bushing was clamped before further milling can be started, which affects the milling efficiency.

[0004] Therefore, in order to solve the above problems, a related facility that better meets the usage requirements is needed. Summary of the invention

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a device and method for bushing milling, which effectively solves the problem in the above background technology that the milled position of the bushing needs to be clamped so that the original clamped position of the bushing can be exposed before further milling can begin.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a bushing milling device, comprising a milling table, a control box is provided above the milling table, the control box and the milling table are fixedly connected by a plurality of support frames, two movable boxes are provided below the control box, a translation unit for driving the two movable boxes to translate is installed in the control box, a clamping seat is provided on the side where the two movable boxes are close to each other, and a first rotating shaft is fixedly connected to the side where the two clamping seats are far away from each other;

[0007] The movable box is equipped with a rotation mechanism for driving the first rotating shaft to rotate, and a plurality of positioning blocks are provided on the side where the two movable boxes are close to each other. The movable box is equipped with a position adjustment structure adapted to the plurality of positioning blocks, and the milling table is equipped with a milling mechanism for milling, and the milling table is equipped with a lifting unit for lifting the workpiece to be processed; the position adjustment structure includes a movable frame sleeved on the outside of the first rotating shaft, the first rotating shaft is equipped with a reset member adapted to the movable frame, a plurality of slide grooves are provided on the movable frame, and a slider is provided for sliding in the slide groove, and the slider and the inner wall of the slide groove are connected by a compression spring, the number of positioning blocks and sliders is the same, and the positioning block is connected to the corresponding slider by a connecting plate, and the movable The box is equipped with a pushing mechanism for pushing several connecting plates to move; the pushing mechanism includes a translation sleeve mounted on the outside of the first rotating shaft, and two movable frames are located between the two translation sleeves, the movable box is fixedly equipped with a first hydraulic telescopic rod, the telescopic end of the first hydraulic telescopic rod is fixedly connected to the translation sleeve, the external rotating sleeve of the translation sleeve is provided with a rotating sleeve, and the rotating sleeve is fixedly equipped with several support plates, the support plates are fixedly equipped with a supporting block, a side of the connecting plate away from the sliding block is fixedly connected with a protrusion, the number of the supporting block and the protrusion is the same, and the supporting block is provided with an inclined surface adapted to the protrusion, and slide plates are fixedly connected to both sides of the support plate, and two adjacent slide plates are respectively in contact with both sides of the movable frame.

[0008] Preferably, the reset member includes at least two guide blocks fixedly mounted on the movable frame, at least two first guide grooves are formed on the first rotating shaft, the guide blocks are located in the corresponding first guide grooves, and the guide blocks and the inner walls of the first guide grooves are connected by a reset spring.

[0009] Preferably, rectangular holes are respectively provided on the inner walls on both sides of the slide groove, and limit blocks are slidably provided in the rectangular holes, and the limit blocks are fixedly connected to the corresponding sliding blocks.

[0010] Preferably, the self-rotation mechanism includes a second rotating shaft rotatably installed in the movable box, the first rotating shaft and the movable box are rotatably connected, and the first rotating shaft is fixedly installed with a first bevel gear located in the movable box, the top of the movable box is rotatably connected with a support sleeve, the external fixed sleeve of the support sleeve is provided with a second bevel gear, the two ends of the second rotating shaft are respectively fixedly connected with third bevel gears, the two third bevel gears are respectively meshed with the corresponding first bevel gear and second bevel gear, two avoidance holes are provided on the bottom inner wall of the control box, and the top of the movable box passes through the corresponding avoidance holes, and the control box is installed with a synchronizer for driving the two support sleeves to rotate.

[0011] Preferably, the synchronizer includes a third rotating shaft rotatably mounted on the control box, a servo motor is fixedly mounted on the control box, and the output end of the servo motor is fixedly connected to the third rotating shaft, a guide bar is fixedly connected to the inner wall of the support sleeve, a plurality of second guide grooves are opened on the third rotating shaft, and the guide bars are located in the corresponding second guide grooves.

[0012] Preferably, the translation unit includes two first support parts fixedly installed on the bottom of the control box, the first support part is fixedly installed with a second hydraulic telescopic rod, the telescopic end of the second hydraulic telescopic rod is fixedly connected to the corresponding movable box, the movable box is fixedly installed with a prism, the outer sliding sleeve of the prism is provided with a second support part, and the second support part is fixedly connected to the control box, the milling mechanism includes a movable seat arranged above the milling table, the movable seat is fixedly installed with a third hydraulic telescopic rod, the telescopic end of the third hydraulic telescopic rod is fixedly connected with a milling cutter, the top of the milling table is fixedly connected with a fixed seat, the fixed seat is fixedly installed with a fourth hydraulic telescopic rod, and the telescopic end of the fourth hydraulic telescopic rod is fixedly connected to the movable seat.

[0013] Preferably, the lifting unit includes a fifth hydraulic telescopic rod fixedly mounted on the milling table, the telescopic end of the fifth hydraulic telescopic rod is fixedly connected to a lifting seat located above the milling table, and the top of the lifting seat is fixedly connected to a plurality of support columns.

[0014] The present invention also provides a method for bushing milling, using the bushing milling device as described above, comprising the following steps:

[0015] Step 1: lift the workpiece to be processed by the lifting unit so that the workpiece to be processed is located between the two clamping seats, and drive the two movable boxes to move closer by the translation unit so that the two clamping seats clamp the two ends of the workpiece to be processed;

[0016] Step 2: driving a group of several positioning blocks to move through the position adjustment structure, so that the several positioning blocks are distributed in a circle outside the workpiece to be processed, and the position adjustment structure drives the several positioning blocks to clamp the ends of the workpiece to be processed, thereby completing the fixation of the workpiece to be processed;

[0017] Step 3: driving the first rotating shaft and the clamping seat to rotate by the rotation mechanism, so as to rotate the workpiece, and starting milling from the end of the workpiece that is not clamped by the plurality of positioning blocks by the milling mechanism;

[0018] Step 4: When the milling of one end of the workpiece that is not clamped by the plurality of positioning blocks is completed, the position adjustment structure drives another group of plurality of positioning blocks to move, so that both ends of the workpiece are clamped and fixed by the two groups of plurality of positioning blocks;

[0019] Step 5: When it is necessary to process the unmilled end of the workpiece, the position adjustment structure drives several positioning blocks to no longer clamp the unmilled end of the workpiece, and the milling mechanism can start processing the unmilled end of the workpiece.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The two movable boxes are driven to move close to each other by the translation unit so that the two clamping seats clamp the two ends of the workpiece to be processed. The position adjustment structure drives one group of several positioning blocks to move so that the several positioning blocks are distributed in a circle outside the workpiece to be processed, and the position adjustment structure drives the several positioning blocks to clamp the ends of the workpiece to be processed to complete the fixation of the workpiece to be processed. The first rotating shaft and the clamping seat are driven to rotate by the rotation mechanism so that the workpiece to be processed rotates. The milling mechanism starts milling from the end of the workpiece to be processed that is not clamped by the several positioning blocks. When the workpiece to be processed is not When the milling of one end clamped by a plurality of positioning blocks is completed, the position adjustment structure is used to drive another group of positioning blocks to move, so that both ends of the workpiece to be processed are clamped and fixed by the two groups of positioning blocks. When it is necessary to process the end of the workpiece to be processed that has not been milled, the position adjustment structure is used to drive the plurality of positioning blocks to no longer clamp the end of the workpiece to be processed that has not been milled, and the milling mechanism can start processing the end of the workpiece to be processed that has not been milled. There is no need to adjust the position of the bushing, so the milling mechanism can be kept in working condition, thereby improving the milling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0023] In the attached picture:

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the structure of the control box cut away in the present invention;

[0026] Figure 3 For the present invention Figure 2 A local enlarged schematic diagram of the middle A;

[0027] Figure 4 It is a structural schematic diagram of the milling mechanism of the present invention;

[0028] Figure 5 It is a schematic structural diagram of a cutaway movable box of the present invention;

[0029] Figure 6 It is a structural schematic diagram of the translation sleeve of the present invention;

[0030] Figure 7 It is a structural schematic diagram of the movable frame of the present invention;

[0031] Figure 8 It is a structural schematic diagram of the connecting plate of the present invention.

[0032] In the figure: 1, milling table; 2, control box; 3, support frame; 4, movable box; 5, first rotating shaft; 6, clamping seat; 7, positioning block; 8, movable frame; 9, slide groove; 10, slider; 11, connecting plate; 12, compression spring; 13, translation sleeve; 14, rotating sleeve; 15, first hydraulic telescopic rod; 16, support plate; 17, slide plate; 18, support block; 19, convex block; 20, guide block; 21, first guide groove; 22, reset spring; 23, limit block; 24, rectangular hole; 25, second rotating shaft; 26. First bevel gear; 27. Support sleeve; 28. Second bevel gear; 29. ​​Third bevel gear; 30. Third rotating shaft; 31. Servo motor; 32. Second guide groove; 33. Guide strip; 34. First supporting part; 35. Second hydraulic telescopic rod; 36. Prism; 37. Second supporting part; 38. Avoidance hole; 39. Milling cutter; 40. Movable seat; 41. Fixed seat; 42. Third hydraulic telescopic rod; 43. Fourth hydraulic telescopic rod; 44. Fifth hydraulic telescopic rod; 45. Lifting seat; 46. Support column. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0034] Embodiment 1, by Figure 1 and Figure 2 The present invention comprises a milling table 1, a control box 2 is arranged above the milling table 1, the control box 2 and the milling table 1 are fixedly connected through a plurality of support frames 3, two movable boxes 4 are arranged below the control box 2, the control box 2 is equipped with a translation unit for driving the two movable boxes 4 to translate, a clamping seat 6 is arranged on the side where the two movable boxes 4 are close to each other, and a first rotating shaft 5 is fixedly connected to the side where the two clamping seats 6 are far away from each other;

[0035] The movable box 4 is equipped with a rotation mechanism for driving the first rotating shaft 5 to rotate. A plurality of positioning blocks 7 are provided on the side where the two movable boxes 4 are close to each other. The movable box 4 is equipped with a position adjustment structure adapted to the plurality of positioning blocks 7. The milling table 1 is equipped with a milling mechanism for milling. The milling table 1 is equipped with a lifting unit for lifting the workpiece to be processed. The two movable boxes 4 are driven to move close to each other by the translation unit so that the two clamping seats 6 clamp the two ends of the workpiece to be processed. The position adjustment structure drives one group of the plurality of positioning blocks 7 to move so that the plurality of positioning blocks 7 are distributed in a circle outside the workpiece to be processed. The position adjustment structure drives the plurality of positioning blocks 7 to clamp the end of the workpiece to be processed, thereby completing the fixation of the workpiece to be processed. The first movable box 4 is driven by the rotation mechanism. The rotating shaft 5 and the clamping seat 6 rotate to make the workpiece to be processed rotate, and the milling mechanism starts from the end of the workpiece to be processed that is not clamped by the plurality of positioning blocks 7. When the milling of the end of the workpiece to be processed that is not clamped by the plurality of positioning blocks 7 is completed, the position adjustment structure drives another group of plurality of positioning blocks 7 to move, so that both ends of the workpiece to be processed are clamped and fixed by the two groups of plurality of positioning blocks 7. When it is necessary to process the end of the workpiece to be processed that is not milled, the position adjustment structure drives the plurality of positioning blocks 7 to no longer clamp the end of the workpiece to be processed that is not milled, and the milling mechanism can start to process the end of the workpiece to be processed that is not milled, and there is no need to adjust the position of the bushing, so that the milling mechanism can be kept in working condition, thereby improving the milling efficiency.

[0036] Embodiment 2, based on embodiment 1, Figure 2 , Figure 5 , Figure 6 , Figure 7 and Figure 8It is given that the position adjustment structure includes a movable frame 8 sleeved on the outside of the first rotating shaft 5, the first rotating shaft 5 is equipped with a reset piece adapted to the movable frame 8, a plurality of slide grooves 9 are opened on the movable frame 8, a slider 10 is slidably provided in the slide groove 9, the slider 10 and the inner wall of the slide groove 9 are connected by a compression spring 12, the number of positioning blocks 7 and the slider 10 is the same, the positioning blocks 7 are connected to the corresponding slider 10 by a connecting plate 11, the movable box 4 is equipped with a pushing mechanism for pushing a plurality of connecting plates 11 to move, the pushing mechanism includes a translation sleeve 13 sleeved on the outside of the first rotating shaft 5, and the two movable frames 8 are located between the two translation sleeves 13, the movable box 4 is fixedly equipped with a first hydraulic telescopic rod 15, the telescopic end of the first hydraulic telescopic rod 15 and the translation sleeve 13 are fixedly connected, the external rotating sleeve of the translation sleeve 13 is provided with a rotating sleeve 14, and the rotating sleeve 14 is fixedly equipped with A plurality of support plates 16, on which a support block 18 is fixedly mounted, a protrusion 19 is fixedly connected to one side of the connecting plate 11 away from the slider 10, the number of the support block 18 and the protrusion 19 is the same, and the support block 18 is provided with an inclined surface adapted to the protrusion 19, the two sides of the support plate 16 are respectively fixedly connected with a slide plate 17, and two adjacent slide plates 17 are respectively in contact with the two sides of the movable frame 8, the reset member includes at least two guide blocks 20 fixedly mounted on the movable frame 8, at least two first guide grooves 21 are provided on the first rotating shaft 5, the guide block 20 is located in the corresponding first guide groove 21, and the guide block 20 and the inner wall of the first guide groove 21 are connected by a reset spring 22, and rectangular holes 24 are respectively provided on the inner walls of the two sides of the slide groove 9, and a limit block 23 is slidably provided in the rectangular hole 24, and the limit block 23 is fixedly connected to the corresponding slider 10;

[0037] The two movable boxes 4 are driven to move closer together through the translation unit so that the two clamping seats 6 clamp the two ends of the workpiece to be processed. The translation sleeve 13 and the support plate 16 are driven to translate through the first hydraulic telescopic rod 15, and the inclined surface on the support block 18 contacts the protrusion 19. As the support block 18 continues to move, the support block 18 pushes the protrusion 19, the connecting plate 11, the slide block 10 and the movable frame 8 to slide synchronously relative to the first rotating shaft 5. The movable frame 8 drives the guide block 20 to slide in the first guide groove 21, and the reset spring 22 is in a stretched state. When a number of positioning blocks 7 are distributed in a circle outside the workpiece to be processed, the guide block 20 contacts the inner wall of the first guide groove 21, and the movable frame 8 stops moving. As the support block 18 continues to move, the support block 18 pushes the protrusion 19, the connecting plate 11 and the slide block 10 to slide relative to the slide groove 9, the compression spring 12 is in a compressed state, and the connecting plate 11 drives the positioning block 7 toward the workpiece to be processed Move, and finally several positioning blocks 7 clamp the workpiece to be processed. When the first rotating shaft 5 and the clamping seat 6 drive the workpiece to be processed to rotate, the first rotating shaft 5 drives the movable frame 8 to rotate synchronously through the guide block 20, and the movable frame 8 drives the support plate 16 and the rotating sleeve 14 to rotate relative to the translation sleeve 13 through the slide plate 17. The support block 18 and the positioning block 7 can rotate synchronously with the workpiece to be processed. When there is no need for several positioning blocks 7 to clamp the workpiece to be processed, similarly, the first hydraulic telescopic rod 15 drives the translation sleeve 13 to move in the opposite direction to the initial position, and the compression spring 12 pushes the slider 10 to move in the opposite direction so that the positioning block 7 is no longer in contact with the workpiece to be processed, and the reset spring 22 drives the guide block 20 and the movable frame 8 to reset to the initial position relative to the movable box 4. When the slider 10 moves, the slider 10 drives the limit block 23 to slide in the rectangular hole 24. The design of the limit block 23 and the rectangular hole 24 can prevent the slider 10 from slipping out of the slide groove 9.

[0038] Embodiment 3, based on embodiment 1, Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5It is given that the self-rotation mechanism includes a second rotating shaft 25 rotatably installed in the movable box 4, the first rotating shaft 5 and the movable box 4 are rotatably connected, and the first rotating shaft 5 is fixedly installed with a first bevel gear 26 located in the movable box 4, the top of the movable box 4 is rotatably connected with a support sleeve 27, and the outer fixed sleeve of the support sleeve 27 is provided with a second bevel gear 28, and the two ends of the second rotating shaft 25 are respectively fixedly connected with third bevel gears 29, and the two third bevel gears 29 are respectively meshed with the corresponding first bevel gears 26 and second bevel gears 28, and the bottom inner wall of the control box 2 is provided with two avoidance holes 38, and the top of the movable box 4 passes through the corresponding avoidance holes 38, and the control box 2 is equipped with a synchronizer for driving the two support sleeves 27 to rotate, and the synchronizer includes a third rotating shaft 30 rotatably installed on the control box 2, and the control box 2 is fixedly installed with a servo motor 31, and the output end of the servo motor 31 is fixedly connected to the third rotating shaft 30, and a guide bar 33 is fixedly connected to the inner wall of the support sleeve 27, and a plurality of second guide grooves 32 are provided on the third rotating shaft 30, and the guide bar 33 is located at the corresponding In the second guide groove 32, the translation unit includes two first support parts 34 fixedly installed at the bottom of the control box 2, the first support part 34 is fixedly installed with a second hydraulic telescopic rod 35, the telescopic end of the second hydraulic telescopic rod 35 is fixedly connected to the corresponding movable box 4, the movable box 4 is fixedly installed with a prism 36, the outer sliding sleeve of the prism 36 is provided with a second support part 37, and the second support part 37 is fixedly connected to the control box 2, the milling mechanism includes a movable seat 40 arranged above the milling table 1, and the movable seat 40 is fixedly installed with a third hydraulic The telescopic rod 42 is pressed, the telescopic end of the third hydraulic telescopic rod 42 is fixedly connected with the milling cutter 39, the top of the milling table 1 is fixedly connected with the fixed seat 41, the fixed seat 41 is fixedly installed with the fourth hydraulic telescopic rod 43, the telescopic end of the fourth hydraulic telescopic rod 43 is fixedly connected with the movable seat 40, the lifting unit includes a fifth hydraulic telescopic rod 44 fixedly installed on the milling table 1, the telescopic end of the fifth hydraulic telescopic rod 44 is fixedly connected with the lifting seat 45 located above the milling table 1, and the top of the lifting seat 45 is fixedly connected with a plurality of support columns 46;

[0039] The movable box 4 and the prism 36 are driven to translate relative to the second support portion 37 and the control box 2 by the second hydraulic telescopic rod 35, so that the first rotating shaft 5 and the clamping seat 6 can be moved in the horizontal direction, and the movable box 4 drives the guide bar 33 to slide in the second guide groove 32 through the support sleeve 27, and the third rotating shaft 30 is driven to rotate by the servo motor 31, and the third rotating shaft 30 drives the support sleeve 27 and the second bevel gear 28 to rotate through the guide bar 33, and the second bevel gear 28 can drive the second rotating shaft 25 to rotate through a corresponding third bevel gear 29, and the second rotating shaft 25 can drive the first bevel gear 26, the first rotating shaft 5 and the clamping seat 6 to rotate synchronously through another third bevel gear 29, and the milling cutter 39 is driven to move by the third hydraulic telescopic rod 42 to change the milling cutter 39 and the distance between the workpiece to be processed, so that the milling cutter 39 and the workpiece to be processed are finally brought into contact with each other. When the workpiece to be processed rotates, the milling cutter 39 is used to mill the workpiece to be processed. The fourth hydraulic telescopic rod 43 drives the movable seat 40 and the milling cutter 39 to move synchronously, so that the milling cutter 39 can move axially relative to the workpiece to be processed, and the entire workpiece to be processed can be milled by the milling cutter 39. When the workpiece to be processed is placed on a plurality of support columns 46, it is supported by a plurality of support columns 46. The fifth hydraulic telescopic rod 44 is used to drive the lifting seat 45 and the support column 46 to move in the vertical direction, so that the workpiece to be processed is at a preset height. When the two clamping seats 6 clamp the workpiece to be processed, the fifth hydraulic telescopic rod 44 is used to drive the lifting seat 45 and the support column 46 to descend to the initial position.

[0040] A bushing milling method of this embodiment uses the bushing milling device as described above, and includes the following steps:

[0041] Step 1: lift the workpiece to be processed by the lifting unit so that the workpiece to be processed is located between the two clamping seats 6, and drive the two movable boxes 4 to move closer to each other by the translation unit so that the two clamping seats 6 clamp the two ends of the workpiece to be processed;

[0042] Step 2: The position adjustment structure drives one group of the plurality of positioning blocks 7 to move, so that the plurality of positioning blocks 7 are circumferentially distributed outside the workpiece to be processed, and the position adjustment structure drives the plurality of positioning blocks 7 to clamp the ends of the workpiece to be processed, thereby completing the fixation of the workpiece to be processed;

[0043] Step 3: The first rotating shaft 5 and the clamping seat 6 are driven to rotate by the rotation mechanism to rotate the workpiece, and the milling mechanism starts milling from the end of the workpiece that is not clamped by the plurality of positioning blocks 7;

[0044] Step 4: When the milling of one end of the workpiece that is not clamped by the plurality of positioning blocks 7 is completed, the position adjustment structure drives another group of plurality of positioning blocks 7 to move, so that both ends of the workpiece are clamped and fixed by the two groups of plurality of positioning blocks 7;

[0045] Step 5: When the unmilled end of the workpiece needs to be processed, the position adjustment structure drives several positioning blocks 7 to no longer clamp the unmilled end of the workpiece, and the milling mechanism can start processing the unmilled end of the workpiece.

[0046] Working principle: During operation, the workpiece to be processed is lifted by the lifting unit so that the workpiece to be processed is located between the two clamping seats 6, and the two movable boxes 4 are driven to move closer by the translation unit so that the two clamping seats 6 clamp the two ends of the workpiece to be processed, and one group of several positioning blocks 7 is driven to move by the position adjustment structure so that the several positioning blocks 7 are distributed in a circle outside the workpiece to be processed, and the position adjustment structure drives the several positioning blocks 7 to clamp the ends of the workpiece to be processed to complete the fixation of the workpiece to be processed, and the first rotating shaft 5 and the clamping seat 6 are driven to rotate by the self-rotation mechanism so that the workpiece to be processed rotates, and the milling mechanism is used to remove the workpiece to be processed from the workpiece that has not been cut by several The milling starts from the end clamped by the plurality of positioning blocks 7. When the milling of the end of the workpiece not clamped by the plurality of positioning blocks 7 is finished, the position adjustment structure drives another group of plurality of positioning blocks 7 to move, so that both ends of the workpiece are clamped and fixed by the two groups of plurality of positioning blocks 7. When it is necessary to process the end of the workpiece not milled, the position adjustment structure drives the plurality of positioning blocks 7 to no longer clamp the end of the workpiece not milled, and the milling mechanism can start to process the end of the workpiece not milled. There is no need to adjust the position of the bushing, so that the milling mechanism can be kept in working state, thereby improving the milling efficiency.

[0047] The two movable boxes 4 are driven to move closer together through the translation unit so that the two clamping seats 6 clamp the two ends of the workpiece to be processed. The translation sleeve 13 and the support plate 16 are driven to translate through the first hydraulic telescopic rod 15, and the inclined surface on the support block 18 contacts the protrusion 19. As the support block 18 continues to move, the support block 18 pushes the protrusion 19, the connecting plate 11, the slide block 10 and the movable frame 8 to slide synchronously relative to the first rotating shaft 5. The movable frame 8 drives the guide block 20 to slide in the first guide groove 21, and the reset spring 22 is in a stretched state. When a number of positioning blocks 7 are distributed in a circle outside the workpiece to be processed, the guide block 20 contacts the inner wall of the first guide groove 21, and the movable frame 8 stops moving. As the support block 18 continues to move, the support block 18 pushes the protrusion 19, the connecting plate 11 and the slide block 10 to slide relative to the slide groove 9, the compression spring 12 is in a compressed state, and the connecting plate 11 drives the positioning block 7 toward the workpiece to be processed Move, and finally several positioning blocks 7 clamp the workpiece to be processed. When the first rotating shaft 5 and the clamping seat 6 drive the workpiece to be processed to rotate, the first rotating shaft 5 drives the movable frame 8 to rotate synchronously through the guide block 20, and the movable frame 8 drives the support plate 16 and the rotating sleeve 14 to rotate relative to the translation sleeve 13 through the slide plate 17, and the support block 18 and the positioning block 7 can rotate synchronously with the workpiece to be processed. When there is no need for several positioning blocks 7 to clamp the workpiece to be processed, similarly, the first hydraulic telescopic rod 15 drives the translation sleeve 13 to move in the opposite direction to the initial position, and the compression spring 12 pushes the slider 10 to move in the opposite direction so that the positioning block 7 is no longer in contact with the workpiece to be processed, and the reset spring 22 drives the guide block 20 and the movable frame 8 to reset to the initial position relative to the movable box 4. When the slider 10 moves, the slider 10 drives the limit block 23 to slide in the rectangular hole 24. The design of the limit block 23 and the rectangular hole 24 prevents the slider 10 from slipping out of the slide groove 9;

[0048] The movable box 4 and the prism 36 are driven to translate relative to the second support portion 37 and the control box 2 by the second hydraulic telescopic rod 35, so that the first rotating shaft 5 and the clamping seat 6 can be moved in the horizontal direction, and the movable box 4 drives the guide bar 33 to slide in the second guide groove 32 through the support sleeve 27, and the third rotating shaft 30 is driven to rotate by the servo motor 31, and the third rotating shaft 30 drives the support sleeve 27 and the second bevel gear 28 to rotate through the guide bar 33, and the second bevel gear 28 can drive the second rotating shaft 25 to rotate through a corresponding third bevel gear 29, and the second rotating shaft 25 can drive the first bevel gear 26, the first rotating shaft 5 and the clamping seat 6 to rotate synchronously through another third bevel gear 29, and the milling cutter 39 is driven to move by the third hydraulic telescopic rod 42 to change the milling cutter 39 and the distance between the workpiece to be processed, so that the milling cutter 39 and the workpiece to be processed are finally brought into contact with each other. When the workpiece to be processed rotates, the milling cutter 39 is used to mill the workpiece to be processed. The fourth hydraulic telescopic rod 43 drives the movable seat 40 and the milling cutter 39 to move synchronously, so that the milling cutter 39 can move axially relative to the workpiece to be processed, and the entire workpiece to be processed can be milled by the milling cutter 39. When the workpiece to be processed is placed on a plurality of support columns 46, it is supported by a plurality of support columns 46. The fifth hydraulic telescopic rod 44 is used to drive the lifting seat 45 and the support column 46 to move in the vertical direction, so that the workpiece to be processed is at a preset height. When the two clamping seats 6 clamp the workpiece to be processed, the fifth hydraulic telescopic rod 44 is used to drive the lifting seat 45 and the support column 46 to descend to the initial position.

[0049] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bushing milling device, comprising a milling table (1), characterized in that: A control box (2) is provided above the milling table (1); the control box (2) and the milling table (1) are fixedly connected via a plurality of support frames (3); two movable boxes (4) are provided below the control box (2); a translation unit for driving the two movable boxes (4) to translate is installed on the control box (2); a clamping seat (6) is provided on the sides of the two movable boxes (4) that are close to each other; and a first rotating shaft (5) is fixedly connected to the sides of the two clamping seats (6) that are separated from each other; The movable box (4) is equipped with a rotation mechanism for driving the first rotating shaft (5) to rotate, a plurality of positioning blocks (7) are provided on the adjacent sides of the two movable boxes (4), the movable box (4) is equipped with a position adjustment structure matched with the plurality of positioning blocks (7), the milling table (1) is equipped with a milling mechanism for milling, and the milling table (1) is equipped with a lifting unit for lifting a workpiece to be processed; The position adjustment structure comprises a movable frame (8) sleeved on the outside of the first rotating shaft (5), the first rotating shaft (5) is equipped with a reset member adapted to the movable frame (8), a plurality of slide grooves (9) are provided on the movable frame (8), a slider (10) is slidably provided in the slide groove (9), the slider (10) and the inner wall of the slide groove (9) are connected by a compression spring (12), the number of positioning blocks (7) and the slider (10) is the same, the positioning blocks (7) and the corresponding sliders (10) are connected by a connecting plate (11), and the movable box (4) is equipped with a pushing mechanism for pushing the plurality of connecting plates (11) to move; the pushing mechanism comprises a translation sleeve (13) sleeved on the outside of the first rotating shaft (5), and the two movable frames (8) are located on the two translation sleeves (13). 3), the movable box (4) is fixedly installed with a first hydraulic telescopic rod (15), the telescopic end of the first hydraulic telescopic rod (15) is fixedly connected to the translation sleeve (13), the outer rotating sleeve of the translation sleeve (13) is provided with a rotating sleeve (14), the rotating sleeve (14) is fixedly installed with a plurality of support plates (16), the support plate (16) is fixedly installed with a supporting block (18), a side of the connecting plate (11) away from the slider (10) is fixedly connected with a protrusion (19), the number of the supporting block (18) and the protrusion (19) is the same, and the supporting block (18) is provided with an inclined surface adapted to the protrusion (19), and the two sides of the support plate (16) are respectively fixedly connected with a slide plate (17), and two adjacent slide plates (17) are respectively in contact with the two sides of the movable frame (8).

2. A bushing milling device according to claim 1, characterized in that: The reset member comprises at least two guide blocks (20) fixedly mounted on the movable frame (8); at least two first guide grooves (21) are formed on the first rotating shaft (5); the guide blocks (20) are located in corresponding first guide grooves (21); and the guide blocks (20) and inner walls of the first guide grooves (21) are connected via reset springs (22).

3. A bushing milling device according to claim 2, characterized in that: Rectangular holes (24) are respectively provided on the inner walls of both sides of the slide groove (9), and a limit block (23) is slidably provided in the rectangular hole (24), and the limit block (23) is fixedly connected to the corresponding slide block (10).

4. The bushing milling device according to claim 1, characterized in that: The self-rotating mechanism comprises a second rotating shaft (25) rotatably mounted in the movable box (4); the first rotating shaft (5) and the movable box (4) are rotatably connected, and the first rotating shaft (5) is fixedly mounted with a first bevel gear (26) located in the movable box (4); the top end of the movable box (4) is rotatably connected with a support sleeve (27); the outer fixed sleeve of the support sleeve (27) is provided with a second bevel gear (28); both ends of the second rotating shaft (25) are respectively fixedly connected with third bevel gears (29); the two third bevel gears (29) are respectively meshed with the corresponding first bevel gear (26) and second bevel gear (28); the inner wall of the bottom of the control box (2) is provided with two avoidance holes (38); the top end of the movable box (4) passes through the corresponding avoidance holes (38); and the control box (2) is provided with a synchronizer for driving the two support sleeves (27) to rotate.

5. A bushing milling device according to claim 4, characterized in that: The synchronizer comprises a third rotating shaft (30) rotatably mounted on the control box (2); a servo motor (31) is fixedly mounted on the control box (2); an output end of the servo motor (31) is fixedly connected to the third rotating shaft (30); a guide bar (33) is fixedly connected to the inner wall of the support sleeve (27); a plurality of second guide grooves (32) are formed on the third rotating shaft (30), and the guide bars (33) are located in corresponding second guide grooves (32).

6. The bushing milling device according to claim 1, characterized in that: The translation unit comprises two first support parts (34) fixedly mounted on the bottom of the control box (2), a second hydraulic telescopic rod (35) fixedly mounted on the first support part (34), a telescopic end of the second hydraulic telescopic rod (35) fixedly connected to a corresponding movable box (4), a prism (36) fixedly mounted on the movable box (4), an outer sliding sleeve of the prism (36) provided with a second support part (37), and the second support part (37) fixedly connected to the control box (2), and the milling mechanism comprises a movable seat (40) arranged above the milling table (1), a third hydraulic telescopic rod (42) fixedly mounted on the movable seat (40), a milling cutter (39) fixedly connected to the telescopic end of the third hydraulic telescopic rod (42), a fixed seat (41) fixedly connected to the top of the milling table (1), a fourth hydraulic telescopic rod (43) fixedly mounted on the fixed seat (41), and a telescopic end of the fourth hydraulic telescopic rod (43) fixedly connected to the movable seat (40).

7. The bushing milling device according to claim 1, characterized in that: The lifting unit comprises a fifth hydraulic telescopic rod (44) fixedly mounted on the milling table (1); the telescopic end of the fifth hydraulic telescopic rod (44) is fixedly connected to a lifting seat (45) located above the milling table (1); and the top of the lifting seat (45) is fixedly connected to a plurality of support columns (46).

8. A method for bushing milling, using the bushing milling device as claimed in claim 1, characterized in that: The following steps are involved: Step 1: Lifting the workpiece to be processed by the lifting unit so that the workpiece to be processed is located between the two clamping seats (6), and driving the two movable boxes (4) to move closer together by the translation unit so that the two clamping seats (6) clamp the two ends of the workpiece to be processed; Step 2: driving one group of the plurality of positioning blocks (7) to move by means of the position adjustment structure, so that the plurality of positioning blocks (7) are distributed in a circular pattern outside the workpiece to be processed, and the position adjustment structure drives the plurality of positioning blocks (7) to clamp the ends of the workpiece to be processed, thereby completing the fixing of the workpiece to be processed; Step 3: driving the first rotating shaft (5) and the clamping seat (6) to rotate by means of the rotation mechanism, so as to rotate the workpiece to be processed, and starting milling from the end of the workpiece to be processed that is not clamped by the plurality of positioning blocks (7) by means of the milling mechanism; Step 4: When the milling of one end of the workpiece that is not clamped by the plurality of positioning blocks (7) is completed, the position adjustment structure drives another group of plurality of positioning blocks (7) to move, so that both ends of the workpiece are clamped and fixed by the two groups of plurality of positioning blocks (7); Step 5: When it is necessary to process the unmilled end of the workpiece, the position adjustment structure drives a plurality of positioning blocks (7) to no longer clamp the unmilled end of the workpiece, and the milling mechanism can start processing the unmilled end of the workpiece.

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