A floating grinding device and method for deburring shaft shell workpieces

Abstract

The present invention discloses a floating grinding device and method for deburring axle shell workpieces in the field of burr cleaning technology, comprising a clamping portion, the clamping portion being used to clamp and fix the workpiece to be polished and drive the workpiece to be polished to rotate; a first driving portion, the first driving portion being connected to the clamping portion and being used to drive the clamping portion to move; a floating grinding portion, the floating grinding portion being arranged above the clamping portion and being able to be raised and lowered, the floating grinding portion comprising a floating grinding wheel, the floating grinding wheel being used to perform floating grinding operations on the workpiece to be polished; and a second driving portion, the second driving portion being used to adjust the distance between the floating grinding wheel and the workpiece to be polished. The present invention drives the workpiece to be polished to rotate by the clamping portion, makes the floating grinding wheel contact with the workpiece to be polished by the second driving portion, and adjusts the grinding force of the floating grinding wheel on the workpiece to be polished by the floating following and profiling of the workpiece to be polished by the floating grinding wheel, thereby realizing automatic adjustment of the grinding removal amount, thereby realizing automatic removal of burrs of axle shell parts.

Description

Technical Field

[0001] The present invention relates to the technical field of burr removal, and in particular to a floating grinding device and method for deburring shaft shell workpieces. Background Art

[0002] like Figure 8 As shown in the figure, for shaft housing parts, after turning, burrs and sharp corners will form on the inside and outside of the bowl of the shaft housing parts. However, due to the irregular shape of the shaft housing, burrs and sharp corners cannot be removed by automated equipment, and manual work can only be done, that is, manual grinding with a handheld pneumatic grinding head. Manual work has the following shortcomings:

[0003] 1. The amount of grinding removal is difficult to control. If the amount of removal is too large, the positioning chamfer surface will be damaged; if the amount of removal is too small, burrs and sharp corners will remain.

[0004] 2. Improper grinding angles can easily form new sharp corners, and the inner ring of the sheath is at risk of being cut during vehicle driving, leading to oil leakage.

[0005] 3. The chamfer is uneven and the appearance is poor.

[0006] 4. The technical requirements for operators are high, which limits the increase in production. Summary of the Invention

[0007] In view of this, the object of the present invention is to provide a floating grinding device for deburring shaft shell workpieces, so as to solve the technical problem that the amount of grinding removal in the existing manual grinding operation is difficult to control.

[0008] The technical solution adopted by the present invention is: a floating grinding device for deburring shaft shell workpieces, comprising:

[0009] A clamping portion, which is used to clamp and fix the workpiece to be polished and drive the workpiece to be polished to rotate around its own axis. The clamping portion has a loading station and a polishing station;

[0010] a first driving part, the first driving part being connected to the clamping part, and the first driving part being used to drive the clamping part to move between the loading station and the grinding station;

[0011] A floating grinding unit, the floating grinding unit being movably disposed above the grinding station, the floating grinding unit comprising a floating grinding wheel for performing floating grinding operations on the workpiece to be ground;

[0012] A second driving part is connected to the floating grinding part, and the second driving part is used to adjust the distance between the floating grinding wheel and the workpiece to be ground.

[0013] Preferably, the floating grinding part includes a floating head mechanism for causing the floating grinding wheel to swing elastically, so as to adjust the grinding force of the floating grinding wheel on the workpiece to be ground;

[0014] The floating head mechanism includes a torsion spring, a dividing cap, a rotating shaft and a mounting block. One end of the rotating shaft is fixedly connected to the driving motor, and the floating grinding wheel is transmission-connected to the driving motor; the rotating shaft is rotatably connected to the mounting through hole of the mounting block, and the dividing cap is provided on the other end of the rotating shaft. The torsion spring is spirally connected between the dividing cap and the rotating shaft.

[0015] Preferably, the floating head mechanism further includes a positioning rod, and the outer circumferential surface of the indexing cap is evenly distributed with indexing holes. The positioning rod is axially movable on the mounting block so that the end of the positioning rod is inserted into the indexing hole.

[0016] Preferably, the floating grinding part further includes a force measuring mechanism for detecting the grinding force of the floating grinding wheel on the workpiece to be ground;

[0017] The force measuring mechanism includes a rotating block, a lifting rod and a force sensor. The rotating block is fixedly connected to the rotating shaft and is arranged in the mounting through hole; the mounting block is provided with a avoidance hole connected to the mounting through hole, and the lifting rod can be lifted and lowered in the avoidance hole. The bottom end of the lifting rod abuts against the rotating block, and the top end of the lifting rod is connected to the force sensor.

[0018] Preferably, the clamping part includes a fixed plate, a running plate, a supporting platform and a driving chuck, the fixed plate is provided with a guide long slot hole, the running plate is slidably connected to the guide long slot hole, the supporting platform is rotatably arranged on the running plate, and the supporting platform is provided with a step-shaped through hole for positioning the workpiece to be polished; the driving chuck is coaxially arranged under the supporting platform and connected to the supporting platform, for clamping and fixing the workpiece to be polished and driving the workpiece to be polished to rotate.

[0019] Preferably, the first driving part includes a telescopic cylinder, a first guide rail and a movable support plate, the clamping part is arranged on the movable support plate, the movable support plate is slidably connected to the first guide rail, and the movable end of the telescopic cylinder is fixedly connected to the movable support plate to drive the movable support plate to move along the length direction of the first guide rail through the extension and contraction of the telescopic cylinder.

[0020] Preferably, the second driving part includes a servo motor, a horizontal screw, a mounting plate, a second guide rail and a translational sliding block, the servo motor and the second guide rail are fixedly arranged on the mounting plate, the horizontal screw is rotatably arranged above the mounting plate and is transmission-connected to the servo motor, and the translational sliding block is threadedly connected to the horizontal screw and is slidingly connected to the second guide rail.

[0021] Preferably, the device also includes a shell, a workbench and a vacuum cleaner, and a first mounting slot and a second mounting slot are provided in parallel on the workbench, the clamping part is installed in the first mounting slot, and the second driving part is installed in the second mounting slot; the outer shell cover is arranged on the outside of the clamping part, the first driving part, the floating grinding part and the second driving part, and the vacuum cleaner is arranged on one side of the outer shell, and the air inlet of the vacuum cleaner is connected to the inner cavity of the outer shell.

[0022] Preferably, the device also includes a control machine; the control machine is electrically connected to the floating grinding part, and is used to display the grinding force of the floating grinding wheel on the workpiece to be ground; the control machine is electrically connected to the second driving part, and is used to control the floating grinding wheel to move away from or close to the workpiece to be ground; the control machine is electrically connected to the first driving part, and is used to control the workpiece to be ground to move between the grinding station and the loading workpiece.

[0023] A method for deburring a shaft shell workpiece, using the above-mentioned floating grinding device for deburring a shaft shell workpiece, and comprising the following steps:

[0024] The workpiece to be polished is driven to rotate clockwise by the clamping portion, and the floating grinding wheel is driven to rotate by the floating grinding portion to perform a floating grinding operation on the inner side of the workpiece to be polished;

[0025] The workpiece to be polished is driven to rotate counterclockwise by the clamping portion, and the floating grinding wheel is driven to rotate by the floating polishing portion, and a floating polishing operation is performed on the outer side of the workpiece to be polished.

[0026] Beneficial effects of the present invention:

[0027] 1. The present invention first clamps and fixes the workpiece to be polished by a clamping part and drives the workpiece to be polished to rotate, and then uses a second driving part to make the floating grinding wheel of the floating grinding part abut against the workpiece to be polished and rotate the floating grinding wheel, so that the floating grinding wheel can adjust the grinding force of the workpiece to be polished by floating and following the contour of the workpiece to be polished, thereby realizing automatic adjustment of the grinding removal amount, and further realizing automatic removal of burrs of shaft shell parts, which can greatly improve the output of shaft shell parts.

[0028] 2. The present invention drives the workpiece to be polished to rotate through the clamping part, and drives the floating grinding wheel away from or close to the workpiece to be polished through the second driving part, thereby realizing the contour following polishing operation of shaft shell parts, which not only ensures the polishing quality, but also realizes the forming operation of the inner and outer chamfers of the bowl mouth of shaft shell parts, and the chamfers are uniform, and the shaft shell parts after deburring are highly consistent and of stable quality.

[0029] 3. The present invention drives the floating grinding wheel to swing elastically in the vertical plane through the floating head mechanism, and the swing amplitude of the floating grinding wheel in the vertical plane is adjustable, thereby making the grinding force of the floating grinding wheel during the floating grinding operation adjustable, thereby expanding the scope of application of the device.

[0030] 4. The present invention provides a force measuring mechanism in the floating grinding part, which can detect the grinding force of the floating grinding wheel on the workpiece to be ground, so that the staff can adjust the elastic swing amplitude of the floating grinding wheel as needed.

[0031] 5. The present invention provides an outer shell on the outside of the clamping part and the floating grinding part to prevent dust generated during the grinding operation from drifting into the surrounding environment, thereby reducing the impact on the production environment; the outer shell is connected to a vacuum cleaner, which can absorb the dust in the inner cavity of the outer shell, facilitating the subsequent treatment of the dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic structural diagram of a floating grinding device for deburring shaft shell workpieces according to the present invention;

[0033] Figure 2 This is a front view of the floating grinding device for deburring shaft shell workpieces of the present invention;

[0034] Figure 3 It is a three-dimensional schematic diagram of the floating grinding part;

[0035] Figure 4 It is a structural diagram of the floating head mechanism and the force measuring mechanism;

[0036] Figure 5 It is a structural diagram of the lifting mechanism;

[0037] Figure 6 It is a structural schematic diagram of the clamping part and the first driving part;

[0038] Figure 7 is a structural schematic diagram of the second driving unit;

[0039] Figure 8 Schematic diagram of the structure of the workpiece to be polished.

[0040] Description of reference numerals in the figures:

[0041] 100, clamping portion;

[0042] 101, fixed plate;

[0043] 102. Walking board;

[0044] 103. Carrying platform;

[0045] 104. Driving chuck;

[0046] 105, guide slot hole;

[0047] 200, first driving unit;

[0048] 201, telescopic cylinder;

[0049] 202, first guide rail;

[0050] 203. Move the support plate;

[0051] 300, floating grinding department;

[0052] 310, floating grinding wheel;

[0053] 320, floating head mechanism;

[0054] 321, torsion spring;

[0055] 322, graduation cap;

[0056] 323, rotating shaft;

[0057] 324, installation block;

[0058] 325, drive motor;

[0059] 326, installation through hole;

[0060] 327, positioning rod;

[0061] 328, indexing hole;

[0062] 330, force measuring mechanism;

[0063] 331, rotating block;

[0064] 332, lifting rod;

[0065] 333, force sensor;

[0066] 340, lifting mechanism;

[0067] 341, upper fixed plate;

[0068] 342, lower fixed plate;

[0069] 343, vertical screw;

[0070] 344, lifting slide block;

[0071] 345, connecting plate;

[0072] 346, guide plate;

[0073] 347, driving parts;

[0074] 400, second driving unit;

[0075] 401, servo motor;

[0076] 402, horizontal screw;

[0077] 403, mounting plate;

[0078] 404, second guide rail;

[0079] 405. Translation of the slider;

[0080] 500, workbench;

[0081] 600. Workpiece to be polished;

[0082] 700, control machine;

[0083] 800, vacuum cleaner;

[0084] 900. Shell. DETAILED DESCRIPTION

[0085] The following is a further detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings. These embodiments are only used to illustrate the present invention and are not intended to limit the present invention.

[0086] In the description of the present invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," and "outside" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0087] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0088] Furthermore, in the description of the present invention, unless otherwise specified, “plurality” means two or more.

[0089] Examples, such as Figure 1-Figure 7 As shown, a floating grinding device for deburring shaft shell workpieces is used to automatically remove burrs and sharp corners on the inner and outer sides of the bowl of shaft shell parts; the device includes:

[0090] A clamping portion 100 is used to clamp and fix the workpiece 600 to be polished and drive the workpiece 600 to be polished to rotate around its own axis. The clamping portion 100 has a loading station and a polishing station; the loading station is used to manually fix the workpiece 600 to be polished on the clamping portion 100 or manually remove the workpiece after polishing, and the polishing station is used for floating polishing operations of the workpiece 600 to be polished;

[0091] a first driving portion 200 connected to the clamping portion 100 and configured to drive the clamping portion 100 to move between the loading station and the grinding station, so as to move the workpiece 600 to be ground from the loading station to the grinding station or vice versa;

[0092] A floating grinding unit 300 is disposed above the grinding station in a liftable manner. The floating grinding unit 300 includes a floating grinding wheel 310. The floating grinding wheel 310 is used to perform floating grinding operations on the workpiece 600 to achieve automatic adjustment of the grinding removal amount of the workpiece 600 by the floating grinding wheel 310.

[0093] A second driving unit 400 is connected to the floating grinding unit 300 and is used to adjust the distance between the floating grinding wheel 310 and the workpiece 600 to be ground, so that the floating grinding wheel 310 is close to or away from the workpiece 600 to be ground.

[0094] The present application first clamps and fixes the workpiece 600 to be polished by the clamping part 100 and drives the workpiece 600 to be polished to rotate, and then uses the second driving part 400 to make the floating grinding wheel 310 of the floating grinding part 300 abut against the workpiece 600 to be polished and rotate the floating grinding wheel 310, so as to adjust the grinding force of the floating grinding wheel 310 on the workpiece 600 to be polished by the floating of the floating grinding wheel 310, thereby realizing the floating contour following grinding operation of the floating grinding wheel 310 on the workpiece to be polished, which can not only effectively control the grinding removal amount, but also realize the automatic removal of burrs of shaft shell parts, which can greatly improve the output of shaft shell parts.

[0095] In a specific embodiment, if Figure 3 、 Figure 4 As shown, the floating grinding part 300 includes a floating head mechanism 320, which is transmission-connected to the floating grinding wheel 310. The floating head mechanism 320 is not only used to drive the floating grinding wheel 310 to rotate around its own axis, but also to make the floating grinding wheel 310 elastically swing in the vertical plane to adjust the grinding force of the floating grinding wheel 310 on the workpiece 600 to be ground, thereby realizing the floating following contour grinding operation of the floating grinding wheel 310 on the workpiece 600 to be ground in the vertical plane, and ensuring the consistency of the grinding removal amount of the workpiece 600 to be ground by the floating grinding wheel 310. With such an arrangement, the floating grinding wheel 310 is driven by the floating head mechanism 320 to elastically swing in the vertical plane, thereby realizing the floating following contour grinding operation of the floating grinding wheel 310 on the workpiece 600 to be ground in the vertical plane; during the floating grinding operation, the radial dimension from the grinding point of the non-rotating workpiece 600 to the rotation axis will continuously increase or decrease, and the floating grinding wheel 310 elastically swings up and down following the change in the radial dimension of the grinding point, so that the floating grinding wheel 310 is always in contact with the workpiece 600 to be ground and maintains a relatively constant grinding force.

[0096] Preferably, Figure 3 、 Figure 4As shown, the floating head mechanism 320 includes a torsion spring 321, a dividing cap 322, a rotating shaft 323 and a mounting block 324. One end of the rotating shaft 323 is a rotating connection end, and the other end is a fixed connection end. The fixed connection end is fixedly connected to the driving motor 325. For example, the fixed connection end is sleeved on the driving motor 325 housing and is welded and fixedly connected to the driving motor 325 housing; the floating grinding wheel 310 is detachably connected to the power output shaft of the driving motor 325 so as to drive the floating grinding wheel 310 to rotate along the axis through the driving motor 325; the middle part of the rotating shaft 323 is rotatably connected to the mounting block 324 through a bearing. 24, the mounting through hole 326 is arranged in the horizontal direction, and the rotating connection end of the rotating shaft 323 extends from the mounting through hole 326; the indexing cap 322 is arranged on the outside of the rotating connection end of the rotating shaft 323 and is connected to the mounting block 324, the torsion spring 321 is spirally arranged between the indexing cap 322 and the rotating shaft 323, and one end of the inner side of the torsion spring 321 is fixedly connected to the rotating shaft 323, and one end of the outer side of the torsion spring 321 is fixedly connected to the indexing cap 322. The torsion spring 321 is used to control the rotation angle of the rotating shaft 323, so as to adjust the elastic swing amplitude of the floating grinding wheel 310. With such a configuration, a spiral torsion spring 321 is provided between the rotating shaft 323 and the indexing cap 322. When the floating grinding wheel 310 abuts against the workpiece 600 to be polished, the floating grinding wheel 310 swings upward under the action of the abutment force F1 of the workpiece 600 to be polished and drives the rotating shaft 323 to rotate. The rotation of the rotating shaft 323 causes the torsion spring 321 to elastically deform, and the elastic deformation of the torsion spring 321 applies a downward elastic force F2 to the rotating shaft 323. The floating elastic force F2 can offset the change in the abutment force F1 (the change in the radial size of the workpiece 600 to be polished will cause the abutment force F1 of the workpiece 600 to be polished on the floating grinding wheel 310 to change), so that an approximately constant grinding force is maintained between the floating grinding wheel 310 and the workpiece 600 to be polished.

[0097] More preferably, Figure 3 、 Figure 4As shown, the floating head mechanism 320 further includes a positioning rod 327 for positioning the indexing cap 322. The indexing cap 322 is rotatably covered by a cover mounted on the end of the rotating shaft 323. A torsion spring 321 is helically connected between the indexing cap 322 and the rotating shaft 323. A plurality of indexing holes 328 are evenly distributed around the outer circumference of the indexing cap 322. The positioning rod 327 is axially movable on the mounting block 324 so that the end of the positioning rod 327 is inserted into the indexing hole 328 to secure the position of the indexing cap 322. The axial movement of the positioning rod 327 can be achieved by any known mechanical structure, such as welding a connecting plate to one side of the mounting block 324, with a threaded hole provided at one end of the connecting plate extending outwardly. The positioning rod 327 is a bolt that is threadedly connected to the threaded hole of the connecting plate, and the end of the bolt is inserted into the indexing hole 328 of the indexing cap 322. With this arrangement, an axially movable positioning rod 327 is provided on one side of the mounting block 324. When it is necessary to adjust the grinding force of the floating grinding wheel 310 on the workpiece 600 to be ground, the end of the positioning rod 327 can be pulled out from the indexing hole 328 of the indexing cap 322, and then the indexing cap 322 is manually rotated. The amplitude of the upward elastic swing of the floating grinding wheel 310 is adjusted to an appropriate position through the elastic deformation of the torsion spring 321, and then the end of the positioning rod 327 is inserted into the indexing hole 328 of the indexing cap 322, so that the elastic swing amplitude of the floating grinding wheel 310 in the vertical plane is adjusted and fixed, thereby keeping the grinding force of the floating grinding wheel 310 on the workpiece 600 to be ground within an appropriate range; at the same time, the magnitude of the grinding force of the floating grinding wheel 310 on the workpiece 600 to be ground is automatically adjusted, making the device suitable for grinding operations of irregular shaft and shell parts.

[0098] In a specific embodiment, if Figure 4 As shown, the floating grinding unit 300 also includes a force measuring mechanism 330 for detecting the grinding force exerted by the floating grinding wheel 310 on the workpiece 600, thereby assisting in adjusting the vertical elastic swing amplitude of the floating grinding wheel 310. By providing the force measuring mechanism in the floating grinding unit 300, the grinding force exerted by the floating grinding wheel 310 on the workpiece 600 can be visualized, making it easier for the operator to adjust the upward elastic swing amplitude of the floating grinding wheel 310 as needed.

[0099] The force measuring mechanism 330 can be any known force measuring mechanism 330. For example, the force measuring mechanism 330 is an angle sensor. The angle sensor detects the rotation angle of the rotating shaft 323 and indirectly obtains the grinding force of the floating grinding wheel 310 on the workpiece 600. The following is a detailed description of a mechanical force measuring structure as an illustrative example. Figure 4As shown, the force measuring mechanism 330 includes a rotating block 331, a lifting rod 332 and a force sensor 333. The rotating block 331 is fixedly connected to the middle part of the rotating shaft 323, and when the rotating shaft 323 is rotatably connected to the mounting through hole 326 of the mounting block 324, the rotating block 331 is located in the mounting through hole 326 and can rotate synchronously with the rotating shaft 323; a avoidance hole connected to the mounting through hole 326 is provided at the top of the mounting block 324, and the lifting rod 332 can be lifted and lowered in the avoidance hole, and the bottom end of the lifting rod 332 abuts against the rotating block 331, and the top end of the lifting rod 332 is connected to the force sensor 333. With such arrangement, during the rotation of the rotating shaft 323, the rotating block 331 rotates synchronously with the rotating shaft 323. Since the bottom end of the lifting rod 332 abuts against the rotating block 331, the lifting rod 332 rises or falls with the rotating block 331. The force sensor 333 detects the deformation force F2 of the torsion spring 321 according to the movement of the top end of the lifting rod 332, that is, indirectly measures the grinding force of the floating grinding wheel 310 on the workpiece 600 to be ground.

[0100] Preferably, the rotating block 331 is a cam. With such an arrangement, the measurement structure accuracy of the force measuring mechanism 330 is higher.

[0101] In a specific embodiment, if Figure 3 、 Figure 5 As shown, the floating grinding unit 300 also includes a lifting mechanism 340 connected to the floating head mechanism 320 for driving the floating grinding wheel 310 to rise and fall. This arrangement allows the floating grinding wheel 310 to be raised or lowered by the lifting mechanism 340, thereby achieving automatic raising and lowering of the floating grinding wheel 310. This not only facilitates the movement of the workpiece 600 to be ground in and out of the grinding station, but also facilitates the full automation of the floating grinding operation of shaft and housing parts.

[0102] The lifting mechanism 340 can be any mechanical structure with a known structure and a lifting function, such as a lifting hydraulic cylinder. The following is a detailed description of a lifting mechanism 340 as an illustrative example only. The lifting mechanism 340 includes an upper fixed plate 341, a lower fixed plate 342, a vertical screw 343, a lifting slide block 344, a connecting plate 345, a guide plate 346 and a driving member 347; the connecting plate 345 and the guide plate 346 are arranged parallel to each other in the vertical direction, and the top ends of the connecting plate 345 and the guide plate 346 are fixedly connected to the upper fixed plate 341, and the bottom ends of the connecting plate 345 and the guide plate 346 are fixedly connected to the lower fixed plate 342; the top end of the vertical screw 343 is rotatably connected to the upper fixed plate 341. The bottom end is rotatably connected to the lower fixed plate 342; the lifting sliding block 344 is sleeved on the guide plate 346, and the lifting sliding block 344 is guided to rise and fall by the guide plate 346. The lifting sliding block 344 is provided with a threaded through hole, and the vertical screw 343 is threadedly connected in the threaded through hole to realize the rising and falling of the lifting sliding block 344 by the rotation of the vertical screw 343; the driving member 347 is provided on the upper fixed plate 341, and the driving member 347 is transmission-connected to the top end of the vertical screw 343 to drive the vertical screw 343 to rotate through the driving member 347.

[0103] Specifically, when the driving member 347 is a rotating handle, the device is a semi-automatic deburring and grinding device, requiring a worker to manually operate the rotating handle to drive the vertical screw 343 to raise or lower the lifting slide 344, thereby achieving the raising and lowering of the floating grinding wheel 310, thereby facilitating the movement of the clamping unit 100 into and out of the grinding station. When the driving member 347 is a servo motor, the device is a fully automated deburring and grinding device. The worker can control the servo motor through the control unit 700 to drive the rotation of the vertical screw 343, and the lifting slide 344 to drive the floating grinding wheel 310 up or down, thereby facilitating the movement of the clamping unit 100 into and out of the grinding station.

[0104] In a specific embodiment, if Figure 2As shown, the device also includes a workbench 500, which is used to support and fix the clamping part 100 and the floating grinding part 300; the workbench 500 is plate-shaped and arranged in the horizontal direction, and a first mounting slot hole and a second mounting slot hole are opened on the workbench 500, and the first mounting slot hole and the second mounting slot hole are both long slot holes and are arranged in parallel; the clamping part 100 is installed in the first mounting slot hole, and under the drive of the first driving part 200, the clamping part 100 can slide back and forth along the length direction of the first mounting slot hole, so that the clamping part 100 moves between the loading station and the grinding station. The second driving part 400 is installed in the second mounting slot hole. The second driving part 400 includes a translation sliding block 405, which can slide back and forth along the length direction of the second mounting hole. The translation sliding block 405 is connected to the floating grinding part 300, and is used to drive the floating grinding part 300 to move in the horizontal direction, thereby adjusting the distance between the floating grinding wheel 310 and the workpiece 600 to be ground.

[0105] Preferably, Figure 2 The device shown also includes a housing 900, which is disposed outside the clamping portion 100, the first drive portion 200, the floating grinding portion 300, and the second drive portion 400. The workbench 500 is disposed in the middle of the housing 900 and is fixedly connected to the housing 900. By disposing the housing 900 outside the clamping portion 100 and the floating grinding portion 300, dust generated during the floating grinding operation can be confined within the housing 900, preventing the dust from dispersing into the surrounding environment and reducing its impact on the production environment. This also facilitates subsequent dust disposal and ensures a clean and hygienic production environment.

[0106] More preferably, Figure 2 As shown, the device also includes a vacuum cleaner 800, which is arranged on one side of the shell 900, and the air inlet of the vacuum cleaner 800 is connected to the inner cavity of the shell 900, for collecting dust generated during the floating grinding operation to facilitate dust disposal and ensure a clean and hygienic production environment.

[0107] In a specific embodiment, if Figure 6As shown, the clamping part 100 includes a fixed plate 101, a running plate 102, a supporting platform 103 and a driving chuck 104. The fixed plate 101 is a long strip of plate. A guide long slot hole 105 is provided on the fixed plate 101. The fixed plate 101 is fixedly set on the first mounting slot hole of the workbench 500; the running plate 102 is a square plate. The running plate 102 is slidingly connected to the guide long slot hole 105, so that the running plate 102 can move back and forth along the length direction of the fixed plate 101; wherein, the sliding connection method between the running plate 102 and the guide long slot hole 105 is the existing technology and will not be repeated here. The supporting platform 103 is rotatably arranged on the running plate 102, so that the supporting platform 103 can rotate in a horizontal plane, and the supporting platform 103 is provided with a stepped through hole for positioning the workpiece 600 to be polished; the driving chuck 104 is coaxially arranged below the supporting platform 103, and the driving chuck 104 is fixedly connected to the supporting platform 103, and is used to clamp and fix the workpiece 600 to be polished and drive the workpiece 600 to be polished to rotate. In this way, at the loading station, after the workpiece to be polished 600 is manually placed into the through hole of the supporting platform 103 in the vertical direction, the shoulder of the workpiece to be polished 600 forms a stop fit with the shoulder of the through hole to realize the positioning of the workpiece to be polished 600 in the vertical direction, and then the chuck 104 is driven to clamp the workpiece to be polished 600. After the first driving part 200 drives the clamping part 100 to move from the loading station to the polishing station, the positioning of the workpiece to be polished 600 in the horizontal direction is realized, and the driving chuck 104 drives the workpiece to be polished 600 to rotate around its own axis to facilitate floating polishing operations.

[0108] In a specific embodiment, if Figure 6 As shown, the first driving part 200 is arranged below the workbench 500, and the first driving part 200 includes a telescopic cylinder 201, a first guide rail 202 and a movable support plate 203. The driving chuck 104 of the clamping part 100 is arranged on the movable support plate 203, and the movable support plate 203 is arranged in the horizontal direction. The telescopic cylinder 201 and the first guide rail 202 are fixedly arranged on both sides of the movable support plate 203; the movable support plate 203 is slidably connected to the first guide rail 202, and the moving end of the telescopic cylinder 201 is fixedly connected to the movable support plate 203, and the movable support plate 203 is driven to move along the length direction of the first guide rail 202 by the extension and contraction of the telescopic cylinder 201. In this way, the clamping part 100 is arranged on the movable support plate 203, and the movable support plate 203 is connected to the first guide rail 202 in a horizontal sliding direction. The movable support plate 203 can be driven to move back and forth in the horizontal plane by the extension and contraction of the telescopic cylinder 201, and then the clamping part 100 can be driven to move back and forth between the loading station and the grinding station through the movable support plate 203.

[0109] Preferably, the telescopic cylinder 201 is a hydraulic cylinder.

[0110] In a specific embodiment, if Figure 7As shown, the second driving part 400 includes a servo motor 401, a horizontal screw 402, a mounting plate 403, a second guide rail 404 and a translation sliding block 405. The mounting plate 403 is fixedly arranged in the horizontal direction directly below the second mounting slot hole of the workbench 500; the servo motor 401 is fixedly arranged at one end of the mounting plate 403, and the two second guide rails 404 are arranged in parallel on both sides of the mounting plate 403. The horizontal screw 402 is arranged above the mounting plate 403 along the length direction of the mounting plate 403, and one end of the horizontal screw 402 is transmission-connected to the servo motor 401 so that the horizontal screw 402 can rotate around the axis; the translation sliding block 405 is slidingly connected to the second guide rail 404 in the horizontal direction, and the horizontal screw 402 passes through the translation sliding block 405 and is threadedly connected to the translation sliding block 405, so as to drive the translation sliding block 405 to move along the second guide rail 404 through the rotation of the horizontal screw 402. With this arrangement, the second drive unit 400 has two functions. The first is that the second drive unit 400 drives the floating grinding wheel 310 of the floating grinding unit 300 to move horizontally, so that the floating grinding wheel 310 moves from the inside of the bowl of the shaft shell part to the outside, or from the outside of the bowl of the shaft shell part to the inside. The second is that the servo motor 401 can be controlled by the control machine 700 to rotate, accurately controlling the reciprocating movement of the translation slide 405 in the horizontal direction, and then the translation slide 405 drives the floating grinding wheel 310 of the floating grinding unit 300 away from or close to the rotating workpiece 600 to be polished, thereby achieving precise control of the reciprocating movement of the floating grinding wheel 310 in the horizontal direction, thereby achieving the contour-following grinding operation of the floating grinding wheel 310 in the horizontal direction, and at the same time achieving the chamfering operation on the inside and outside of the bowl of the workpiece 600 to be polished, and ensuring the quality of the chamfering. The displacement variation of the floating grinding wheel 310 when the controller 700 controls the reciprocating movement in the horizontal plane should be the same as the radial dimension variation of the grinding point on the workpiece 600 to be ground.

[0111] It should be noted that the floating grinding wheel 310 in the present application can float in either a horizontal or vertical plane; the floating grinding unit 300 in the present application can enable the floating grinding wheel 310 to perform a floating follow-profiling grinding operation on the workpiece 600 in the vertical plane, and the second driving unit 400 can enable the floating grinding wheel 310 to perform a floating follow-profiling grinding operation on the workpiece 600 in the horizontal plane. When the floating grinding wheel 310 performs both the floating follow-profiling grinding operation in the vertical plane and the floating follow-profiling grinding operation in the horizontal plane, the floating grinding effect of the floating grinding wheel 310 on the workpiece 600 is optimal.

[0112] In a specific embodiment, if Figure 2As shown, the device also includes a controller 700 for automatically controlling the floating grinding wheel 310's floating, follow-up, and contour grinding of the workpiece 600. The controller 700 is electrically connected to the floating grinding unit 300 and displays the grinding force of the floating grinding wheel 310 on the workpiece 600, as detected by the force measuring mechanism 330, in real time, enabling visual observation of the grinding effect during the floating grinding operation. The controller 700 is electrically connected to the second drive unit 400 and precisely controls the movement of the floating grinding wheel 310 away from or toward the workpiece 600, enabling horizontal contour grinding of the floating grinding wheel 310 and simultaneously completing chamfering of the inner and outer sides of the bowl rim of the workpiece 600. The controller 700 is also electrically connected to the first drive unit 200 and controls the movement of the workpiece 600 between the grinding station and the loading station.

[0113] A method for deburring a shaft shell workpiece, using the above-mentioned floating grinding device for deburring a shaft shell workpiece, comprises the following steps:

[0114] When removing burrs from the inner side of the bowl rim of the workpiece 600 to be polished, the floating grinding wheel 310 is brought into contact with the inner side of the bowl rim of the workpiece 600 to be polished by lifting and lowering the floating grinding unit 300, and the angle between the axis of the floating grinding wheel 310 and the horizontal plane is 5°; the workpiece 600 to be polished is driven to rotate clockwise by the clamping unit 100, and the floating grinding wheel 310 is driven to rotate counterclockwise by the floating grinding unit 300 to perform a vertical floating grinding operation or a horizontal floating grinding operation on the inner side of the bowl rim of the workpiece 600 to be polished;

[0115] When removing burrs on the outer side of the bowl rim of the workpiece 600 to be polished, the floating grinding wheel 310 is brought into contact with the outer side of the bowl rim of the workpiece 600 to be polished by lifting and lowering the floating grinding part 300, and the angle between the axis of the floating grinding wheel 310 and the horizontal plane is 5°; the workpiece 600 to be polished is driven to rotate counterclockwise by the clamping part 100, and the floating grinding wheel 310 is driven to rotate counterclockwise by the floating grinding part 300 and the outer side of the bowl rim of the workpiece 600 to be polished is subjected to vertical floating grinding operation or horizontal floating grinding operation.

[0116] The use process of the tooling of the present invention is as follows:

[0117] Before the floating grinding operation, the floating grinding wheel 310 needs to be raised by the lifting mechanism 340 of the floating grinding part 300, and then the upward elastic swing amplitude of the floating grinding wheel 310 is adjusted according to the radial size of the workpiece 600 to be ground. Rotating the indexing cap 322 clockwise reduces the upward elastic swing amplitude of the floating grinding wheel 310, that is, increases the grinding force of the floating grinding wheel 310 on the workpiece 600 to be ground; rotating the indexing cap 322 counterclockwise increases the upward elastic swing amplitude of the floating grinding wheel 310, that is, reduces the grinding force of the floating grinding wheel 310 on the workpiece 600 to be ground; when the lifting mechanism 340 of the floating grinding part 300 causes the floating grinding wheel 310 to descend to the grinding position, the force measuring mechanism 330 can detect the specific value of the grinding force.

[0118] To ensure effective burr removal during floating grinding, the shaft housing component must be rotated clockwise when chamfering the inside of the bowl, and counterclockwise when chamfering the outside of the bowl. The clamping unit 100 rotates the shaft housing component, and the floating grinding wheel 310 follows the chamfering process by floating profiling, eliminating burrs on both the inside and outside of the bowl.

[0119] In order to ensure product quality, reduce the impact of the wear of the floating grinding wheel 310 on chamfering, ensure uniform chamfering and consistency of part processing, add a wear compensation program action for the floating grinding wheel 310, and compensate the loss of each floating grinding wheel by 0.02 mm to the program position, that is, add a compensation program to the driver program of the second drive unit 400 to adjust the floating contour following grinding operation of the floating grinding wheel 310 in the horizontal direction, and enable each floating grinding wheel 310 to perform floating contour following grinding operations on 500 workpieces 600 to be ground.

[0120] Compared with the prior art, this application has at least the following beneficial technical effects:

[0121] The present application adopts the floating grinding wheel 310 with automatic contour following to remove burrs, which can be extended to various special-shaped parts, and is applicable to the processing of inner hole internal angles, irregular-shaped parts, and parts with large shape tolerances.

[0122] Compared with manual grinding operations, the floating grinding device of the present application can save manpower, the product chamfers are uniform, and the parts after deburring are highly consistent and of stable quality.

[0123] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A floating grinding device for deburring shaft shell workpieces, characterized in that: include: A clamping portion (100), the clamping portion (100) is used to clamp and fix the workpiece (600) to be polished and drive the workpiece (600) to be polished to rotate around its own axis, and the clamping portion (100) has a loading station and a polishing station; a first driving part (200), the first driving part (200) being connected to the clamping part (100), and the first driving part (200) being used to drive the clamping part (100) to move between the loading station and the grinding station; A floating grinding section (300), the floating grinding section (300) is movably disposed above the grinding station, the floating grinding section (300) comprises a floating grinding wheel (310), and the floating grinding wheel (310) is used to perform floating grinding operations on the workpiece (600) to be ground; a second driving unit (400), the second driving unit (400) being connected to the floating grinding unit (300), and the second driving unit (400) being used to adjust the distance between the floating grinding wheel (310) and the workpiece to be ground (600); The floating grinding section (300) includes a floating head mechanism (320) for causing the floating grinding wheel (310) to swing elastically, so as to adjust the grinding force of the floating grinding wheel (310) on the workpiece (600) to be ground; the floating head mechanism (320) includes a torsion spring (321), a dividing cap (322), a rotating shaft (323) and a mounting block (324); one end of the rotating shaft (323) is fixedly connected to a driving motor (325), and the floating grinding wheel (310) is transmission-connected to the driving motor (325); the rotating shaft (323) is rotationally connected to the mounting through hole (326) of the mounting block (324); the dividing cap (322) is covered on the other end of the rotating shaft (323); and the torsion spring (321) is spirally connected between the dividing cap (322) and the rotating shaft (323).

2. A floating grinding device for deburring shaft shell workpieces according to claim 1, characterized in that: The floating head mechanism (320) further includes a positioning rod (327), and the outer circumferential surface of the indexing cap (322) is evenly distributed with indexing holes (328). The positioning rod (327) is axially movable on the mounting block (324) so ​​that the end of the positioning rod (327) is inserted into the indexing hole (328).

3. The floating grinding device for deburring shaft shell workpieces according to claim 1, characterized in that: The floating grinding part (300) further includes a force measuring mechanism (330) for detecting the grinding force of the floating grinding wheel (310) on the workpiece (600) to be ground; The force measuring mechanism (330) comprises a rotating block (331), a lifting rod (332) and a force sensor (333); the rotating block (331) is fixedly connected to the rotating shaft (323) and is arranged in the mounting through hole (326); the mounting block (324) is provided with a avoidance hole connected to the mounting through hole (326); the lifting rod (332) is liftably arranged in the avoidance hole; the bottom end of the lifting rod (332) abuts against the rotating block (331), and the top end of the lifting rod (332) is connected to the force sensor (333).

4. The floating grinding device for deburring shaft shell workpieces according to claim 1, characterized in that: The clamping portion (100) includes a fixed plate (101), a running plate (102), a bearing platform (103) and a driving chuck (104); the fixed plate (101) is provided with a guide long slot hole (105); the running plate (102) is slidably connected to the guide long slot hole (105); the bearing platform (103) is rotatably arranged on the running plate (102); the bearing platform (103) is provided with a stepped through hole for positioning the workpiece to be polished (600); the driving chuck (104) is coaxially arranged below the bearing platform (103) and connected to the bearing platform (103), and is used to clamp and fix the workpiece to be polished (600) and drive the workpiece to be polished (600) to rotate.

5. The floating grinding device for deburring shaft shell workpieces according to claim 1, characterized in that: The first driving portion (200) comprises a telescopic cylinder (201), a first guide rail (202) and a movable support plate (203); the clamping portion (100) is arranged on the movable support plate (203); the movable support plate (203) is slidably connected to the first guide rail (202); the movable end of the telescopic cylinder (201) is fixedly connected to the movable support plate (203), so that the movable support plate (203) is driven to move along the length direction of the first guide rail (202) by the extension and contraction of the telescopic cylinder (201).

6. The floating grinding device for deburring shaft shell workpieces according to claim 1, characterized in that: The second driving part (400) comprises a servo motor (401), a horizontal screw rod (402), a mounting plate (403), a second guide rail (404) and a translation sliding block (405); the servo motor (401) and the second guide rail (404) are fixedly arranged on the mounting plate (403); the horizontal screw rod (402) is rotatably arranged above the mounting plate (403) and is transmission-connected to the servo motor (401); the translation sliding block (405) is threadedly connected to the horizontal screw rod (402) and is slidingly connected to the second guide rail (404).

7. The floating grinding device for deburring shaft shell workpieces according to claim 1, characterized in that: The device further comprises a housing (900), a workbench (500) and a vacuum cleaner (800); a first mounting slot and a second mounting slot are provided in parallel on the workbench (500); the clamping portion (100) is installed in the first mounting slot, and the second driving portion (400) is installed in the second mounting slot; The housing (900) is arranged outside the clamping portion (100), the first driving portion (200), the floating polishing portion (300) and the second driving portion (400); The vacuum cleaner (800) is arranged on one side of the housing (900), and the air inlet of the vacuum cleaner (800) is in communication with the inner cavity of the housing (900).

8. The floating grinding device for deburring shaft shell workpieces according to claim 1, characterized in that: The device further comprises a control machine (700); the control machine (700) is electrically connected to the floating grinding part (300) and is used to display the grinding force of the floating grinding wheel (310) on the workpiece (600) to be ground; The control machine (700) is electrically connected to the second driving unit (400) and is used to control the floating grinding wheel (310) to move away from or approach the workpiece (600) to be ground; The control machine (700) is electrically connected to the first driving unit (200) and is used to control the workpiece to be polished (600) to move between the polishing station and the loading workpiece.

9. A method for deburring a shaft shell workpiece, characterized in that: The method uses the floating grinding device for deburring axle shell workpieces according to any one of claims 1 to 8, and the method comprises the following steps: The workpiece (600) to be polished is driven to rotate clockwise by the clamping portion (100), and the floating grinding wheel (310) is driven to rotate by the floating polishing portion (300), and a floating polishing operation is performed on the inner side of the workpiece (600) to be polished; The workpiece (600) to be polished is driven to rotate counterclockwise by the clamping portion (100), and the floating grinding wheel (310) is driven to rotate by the floating polishing portion (300), and a floating polishing operation is performed on the outer side of the workpiece (600) to be polished.

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