A grinding device for automobile shift shaft

Abstract

The present invention relates to the technical field of automobile parts processing, and in particular to a grinding device for an automobile shift shaft, the grinding device for an automobile shift shaft comprises a machine base, a clamping mechanism and a grinding mechanism, the clamping mechanism is configured to clamp the shift shaft; the grinding mechanism comprises a rotating shaft, a sleeve ring, an annular bag and a plurality of brush rods, the rotating shaft is arranged on the machine base, the axis of the rotating shaft is parallel to the axis of the shift shaft, the rotating shaft can both slide along the radial direction of the shift shaft and rotate; the sleeve ring is hinged on the rotating shaft; the annular bag is sleeved on the sleeve ring; a plurality of brush rods are all arranged on the annular bag; when in use, the annular bag is partially inserted into a spiral groove on the shift shaft and is in an expanded state so as to adapt to the shape of the spiral groove, the annular bag can slide along the spiral groove relative to the shift shaft so as to grind the shift shaft through the brush rod, thereby achieving comprehensive grinding and adapting to spiral grooves with different pitches and different widths.

Description

Technical Field

[0001] The invention relates to the technical field of automobile parts processing, in particular to a grinding device for an automobile shift shaft. Background Art

[0002] The car shift shaft is a key component in the car transmission system. It is usually located on the top or side of the transmission and is a transmission component that connects the shift lever and the internal shift mechanism of the transmission. The main function of the shift shaft is to transmit the force and movement applied by the driver through the shift lever to the inside of the transmission, thereby realizing the switching of different gears of the car.

[0003] The process of machining the automobile shift shaft includes forging, turning, milling, deburring and grinding, among which grinding equipment is needed for grinding the automobile shift shaft. In the related technology, for example, Chinese patent CN207942267U discloses a deburring device for an automobile gearbox shift shaft. When the deburring device for the automobile gearbox shift shaft is used, the shift shaft is placed between two fixing blocks, and one end of the shift shaft close to the fixing plate is pressed against the fixing groove, the second motor is started, and the second shaft is rotated. Due to the two second The nut blocks respectively cooperate with the two sets of external threads on the second rotating shaft, and the two second nut blocks are slidably connected to the side walls of the second vertical plate and cannot rotate, so that the two second nut blocks are close to each other, thereby driving the angle between the two pressure rods to become smaller and smaller, and the pressure rod drives the pressure plate to move to one side of the fixed block, so that the fixed block abuts against the other end of the shift shaft, the shift shaft is fixed and clamped, and another fixed block is covered on the shift shaft, and the two fixed blocks are fixed by magnets, and the brush on the inside of the fixed block can deburr the surface of the shift shaft.

[0004] Although the above-mentioned deburring device for the automobile gearbox shift shaft can realize the deburring and grinding work of the automobile shift shaft, it is found in actual use that when grinding the automobile shift shaft with a spiral groove, the brush is often difficult to grind the bottom and side walls of the spiral groove, resulting in low grinding quality of the automobile shift shaft. Summary of the invention

[0005] Based on this, it is necessary to provide a grinding device for an automobile shift shaft in order to solve the problem of low processing quality of the current automobile shift shaft during processing.

[0006] The above purpose is achieved through the following technical solutions:

[0007] A grinding device for a vehicle shift shaft, the grinding device for a vehicle shift shaft comprising:

[0008] Machine base;

[0009] a clamping mechanism configured to clamp a shift shaft;

[0010] A grinding mechanism, the grinding mechanism includes a rotating shaft, a ring, an annular bag and multiple brush rods, the rotating shaft is arranged on the machine base, the axis of the rotating shaft is parallel to the axis of the shift shaft, the rotating shaft can both slide in the radial direction of the shift shaft and rotate; the ring is hinged on the rotating shaft; the annular bag is sleeved on the ring; the multiple brush rods are all arranged on the annular bag; when in use, the annular bag is partially inserted into the spiral groove on the shift shaft and is in an expanded state to adapt to the shape of the spiral groove, the annular bag can slide along the spiral groove relative to the shift shaft to grind the shift shaft through the brush rod.

[0011] Furthermore, the grinding device for the automobile shift shaft also includes a rotating ring, which is arranged on the machine base and can rotate; the rotating shaft is arranged on the rotating ring and can rotate synchronously with the rotating ring.

[0012] Furthermore, the polishing mechanism also includes a first telescopic rod, which extends along the radial direction of the rotating ring, is connected between the rotating shaft and the rotating ring, and is telescopic.

[0013] Furthermore, there are multiple grinding mechanisms, which are arranged circumferentially.

[0014] Furthermore, the grinding device for the automobile shift shaft also includes a transmission mechanism, and the transmission mechanism is configured to be able to synchronously drive the multiple rotating shafts to rotate.

[0015] Further, the transmission mechanism includes a driving member and a plurality of second telescopic rods, the second telescopic rods extend in the radial direction of the rotating ring and are capable of extension and retraction, the first end of the second telescopic rods is arranged on the inner circumferential wall of the rotating ring, and the second end is suspended; the plurality of second telescopic rods are arranged in the circumferential direction; a mounting shaft is arranged on the second end of each of the second telescopic rods, the axis of the mounting shaft is parallel to the axis of the shift shaft and can rotate; a first friction wheel is sleeved on each of the mounting shafts, the first friction wheel can rotate, and a friction belt is commonly transmission-sleeved on all of the first friction wheels; a second friction wheel is sleeved on each of the mounting shafts, the second friction wheel can rotate, and all of the second friction wheels are friction-driven with the friction belt; the driving member is configured to provide a driving force for rotating one of the first friction wheels.

[0016] Furthermore, the transmission mechanism also includes an elastic member connected between the second end of the second telescopic rod and the rotating ring. Under the elastic action of the elastic member, the second telescopic rod has a tendency to shorten so as to tension the friction belt.

[0017] Furthermore, the grinding device for the automobile shift shaft also includes a rotating mechanism and a moving mechanism, wherein the rotating mechanism is configured to drive the shift shaft to rotate; and the moving mechanism is configured to provide a driving force for the shift shaft to move along its own axial direction.

[0018] Furthermore, the force for the annular bag to expand is provided by liquid.

[0019] Furthermore, the annular bag is at least a double-layer structure, with the inner layer being a rubber layer and the outer layer being a Teflon layer.

[0020] The beneficial effects of the present invention are:

[0021] The grinding device for automobile shift shafts disclosed by the present invention is used. First, the shift shaft is clamped by a clamping mechanism, and then the rotating shaft is driven to slide along the radial direction of the shift shaft and in the direction close to the shift shaft. The rotating shaft drives the annular capsule part to be inserted into the spiral groove on the shift shaft synchronously through the collar. In the process of inserting the annular capsule into the spiral groove, the annular capsule moves through the ball joint between the collar and the rotating shaft under the shape restriction of the spiral groove, and gradually deforms to adapt to the shape of the spiral groove. Then the rotating shaft is driven to rotate, and the rotating shaft drives the annular capsule to rotate synchronously through the collar to grind the shift shaft and the spiral groove. Then the annular capsule is driven to slide along the spiral groove relative to the shift shaft to fully grind the surface of the shift shaft. By setting a freely deformable annular capsule, it can adapt to the shape of spiral grooves with different pitches and different widths, which is conducive to improving applicability, and can also achieve comprehensive grinding of the shift shaft and the spiral groove, which is conducive to improving the grinding quality of the shift shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the three-dimensional structure of the grinding device for a vehicle shift shaft provided by an embodiment of the present invention when grinding the shift shaft;

[0023] Figure 2 A schematic diagram of the front view structure of the grinding device for a vehicle shift shaft provided by an embodiment of the present invention when grinding the shift shaft;

[0024] Figure 3 A schematic diagram of the exploded parts of a grinding device for a vehicle shift shaft provided by an embodiment of the present invention;

[0025] Figure 4Schematic diagram of the three-dimensional structure of the rotating shaft, the collar, the annular bag and the second friction wheel of the grinding device for the automobile shift shaft provided by the embodiment of the present invention when assembled Figure 1 ;

[0026] Figure 5 A schematic diagram of a three-dimensional cross-sectional structure of a rotating shaft, a sleeve ring, an annular capsule and a second friction wheel of a grinding device for a vehicle shift shaft provided by an embodiment of the present invention when assembled Figure 1 ;

[0027] Figure 6 for Figure 5 A schematic diagram of the partially enlarged structure at center A;

[0028] Figure 7 Schematic diagram of the three-dimensional structure of the rotating shaft, the collar, the annular bag and the second friction wheel of the grinding device for the automobile shift shaft provided by the embodiment of the present invention when assembled Figure 2 ;

[0029] Figure 8 A schematic diagram of a three-dimensional cross-sectional structure of a rotating shaft, a sleeve ring, an annular capsule and a second friction wheel of a grinding device for a vehicle shift shaft provided by an embodiment of the present invention when assembled Figure 2 ;

[0030] Fig. 9 for Figure 8 A schematic diagram of the partially enlarged structure at B in the middle;

[0031] Fig.10 A schematic diagram of the three-dimensional structure of the rotating shaft, the collar and the second friction wheel of the grinding device for the automobile shift shaft provided by the embodiment of the present invention when assembled;

[0032] Fig.11 A schematic three-dimensional structure diagram of a shift shaft that can be polished by a polishing device for a vehicle shift shaft provided in an embodiment of the present invention.

[0033] in:

[0034] 1. Machine base; 11. First drive motor; 12. Third friction wheel; 13. Fourth friction wheel;

[0035] 2. grinding mechanism; 21. rotating shaft; 211. ball sleeve; 212. fixing ring; 2121. sink; 22. sleeve ring; 23. annular bag; 231. rubber layer; 232. Teflon layer; 233. nylon layer; 24. first telescopic rod;

[0036] 3. Rotating ring;

[0037] 4. Transmission mechanism; 41. Second drive motor; 42. Second telescopic rod; 43. Mounting shaft; 44. First friction wheel; 45. Friction belt; 46. Second friction wheel;

[0038] 5. Shift shaft; 501. Spiral groove. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0040] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned herein, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0041] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0042] like Figures 1 to 10 As shown, the grinding device for the automobile shift shaft provided by the embodiment of the present invention is configured to include a machine base 1, a clamping mechanism and a grinding mechanism 2, wherein the clamping mechanism is configured to clamp the shift shaft 5; the grinding mechanism 2 is configured to include a rotating shaft 21, a collar 22, an annular capsule 23 and a plurality of brush rods, the rotating shaft 21 is arranged on the machine base 1, the axis of the rotating shaft 21 is parallel to the axis of the shift shaft 5, the rotating shaft 21 can both slide along the radial direction of the shift shaft 5 and rotate; the collar 22 is ball-hinged on the rotating shaft 21; the annular capsule 23 is sleeved on the collar 22; a plurality of brush rods are all arranged on the annular capsule 23; when in use, the annular capsule 23 is partially inserted into the spiral groove 501 on the shift shaft 5, and is in an expanded state so as to adapt to the shape of the spiral groove 501, the annular capsule 23 can slide along the spiral groove 501 relative to the shift shaft 5, so as to grind the shift shaft 5 through the brush rod.

[0043] Specifically in this embodiment, the clamping mechanism can be set as a three-jaw mechanical chuck, and is set on the top of the machine base 1 when installed; in order to facilitate the installation of the grinding mechanism 2, an annular structure is set on the top of the machine base 1, and the axis of the annular structure extends in the horizontal direction; the rotating shaft 21 is inserted into the inside of the annular structure when in use, and the axis is parallel to the axis of the annular structure; in order to facilitate the formation of a ball hinge with the collar 22, such as Fig.10 As shown, a ball sleeve 211 is fixedly sleeved on the rotating shaft 21 near the middle, and the collar 22 is sleeved on the ball sleeve 211 during installation to form a ball joint with the rotating shaft 21; Figure 6 As shown, the cross-sectional shape of the annular bag 23 is set to an inverted U shape, and when installed, the opening faces inward and is sleeved on the ring 22; when installed, the inward end of the brush rod is fixedly inserted on the outer surface of the annular bag 23, and the outward end is suspended, and the brush rod can be set to a round rod-shaped elastic structure.

[0044] During use, if Figure 1 As shown, firstly, the shift shaft 5 is clamped by a three-claw mechanical chuck, and at this time, the axis of the shift shaft 5 and the axis of the annular structure of the base 1 are arranged to coincide with each other; then, the rotating shaft 21 is driven to slide along the radial direction of the shift shaft 5 and in the direction close to the shift shaft 5, and the rotating shaft 21 simultaneously drives the annular capsule 23 to partially insert into the spiral groove 501 on the shift shaft 5 through the collar 22; in the process of the annular capsule 23 being inserted into the spiral groove 501, the annular capsule 23 is restricted by the shape of the spiral groove 501, on the one hand, it moves through the ball hinge between the collar 22 and the ball sleeve 211, and on the other hand, it gradually deforms, as shown in FIG. Fig. 9 As shown, to adapt to the shape of the spiral groove 501; then drive the rotating shaft 21 to rotate, and the rotating shaft 21 synchronously drives the annular capsule 23 to rotate through the ring 22 to grind the shift shaft 5 and the spiral groove 501; then drive the annular capsule 23 to slide along the spiral groove 501 relative to the shift shaft 5 to comprehensively grind the surface of the shift shaft 5.

[0045] It is understandable that the clamping mechanism can also be configured as a three-jaw pneumatic / hydraulic chuck.

[0046] It is understandable that the clamping mechanism can also be set as a four-jaw mechanical / pneumatic / hydraulic chuck.

[0047] It is understandable that the brush rod may also be configured as a wheat ear-shaped elastic structure.

[0048] In order to facilitate the annular capsule 23 to slide relative to the shift shaft 5 along the spiral groove 501 , the annular capsule 23 and the shift shaft 5 need to have both relative rotation and relative sliding along the axial direction of the shift shaft 5 .

[0049] In a further embodiment, in order to facilitate relative rotation between the annular bag 23 and the shift shaft 5, the grinding device for the automobile shift shaft is configured to also include a rotating ring 3, which is arranged on the machine base 1 and can rotate; the rotating shaft 21 is arranged on the rotating ring 3 and can rotate synchronously with the rotating ring 3.

[0050] Specifically in this embodiment, Figure 1 As shown, the rotating ring 3 is coaxially inserted into the annular structure of the base 1 during installation and can rotate on its own.

[0051] More specifically, in order to facilitate the provision of driving force for the rotation of the rotating ring 3, the grinding device for the automobile shift shaft can be configured to further include a first driving motor 11, a third friction wheel 12 and a fourth friction wheel 13, such as Figure 2 and Figure 3 As shown, the first drive motor 11 is installed on the end face of the annular structure of the machine base 1, and the motor shaft of the first drive motor 11 is arranged horizontally; the third friction wheel 12 is fixedly sleeved on the motor shaft of the first drive motor 11; the fourth friction wheel 13 is arranged on the end face of the annular structure of the machine base 1, and at the same time frictionally transmits power to the third friction wheel 12 and the rotating ring 3.

[0052] During use, the first drive motor 11 is started, the first drive motor 11 drives the third friction wheel 12 to rotate, the third friction wheel 12 drives the rotating ring 3 to rotate through the fourth friction wheel 13, and the rotating ring 3 synchronously drives the annular bag 23 to rotate relative to the shift shaft 5 through the rotating shaft 21.

[0053] It can be understood that, in order to facilitate the provision of driving force for the rotation of the rotating ring 3, the grinding device for the automobile shift shaft can also be configured to also include a gear and an outer gear ring, wherein the gear is fixedly sleeved on the motor shaft of the first drive motor 11; the outer gear ring is fixedly sleeved on the rotating ring 3 and meshes with the gear to drive the rotating ring 3 to rotate.

[0054] In a further embodiment, in order to facilitate the installation of the rotating shaft 21 and enable the rotating shaft 21 to slide along the radial direction of the shift shaft 5, the grinding mechanism 2 is configured to also include a first telescopic rod 24, which extends along the radial direction of the rotating ring 3 and is connected between the rotating shaft 21 and the rotating ring 3 and can be telescopic.

[0055] Specifically in this embodiment, Figure 3 As shown, the number of the first telescopic rods 24 can be two, and the two first telescopic rods 24 are arranged at intervals along the axis direction of the rotating ring 3; Fig.10As shown, two fixing rings 212 are sleeved on the rotating shaft 21, and the two fixing rings 212 are respectively located on both sides of the ball sleeve 211, and the fixing rings 212 can rotate relative to the rotating shaft 21, and a groove 2121 is opened on the outer peripheral wall of each fixing ring 212, and the groove 2121 is set as a columnar structure; when the rotating shaft 21 is installed, the suspended ends of the two first telescopic rods 24 are respectively inserted into the two grooves 2121.

[0056] More specifically, the driving force for the extension and retraction of the first telescopic rod 24 may be provided by air pressure, and when the driving force for the extension and retraction of the first telescopic rod 24 is provided by air pressure, the first telescopic rod 24 and the air source together form a pneumatic cylinder.

[0057] During use, the pneumatic cylinder is started, and the output shaft of the pneumatic cylinder extends, synchronously driving the rotating shaft 21 to move along the radial direction of the shift shaft 5 and in a direction close to the shift shaft 5; the output shaft of the pneumatic cylinder retracts, synchronously driving the rotating shaft 21 to move along the radial direction of the shift shaft 5 and in a direction away from the shift shaft 5.

[0058] It can be understood that the driving force for the extension and retraction of the first telescopic rod 24 can also be provided by hydraulics or electrics. When the driving force for the extension and retraction of the first telescopic rod 24 is provided by hydraulics, the first telescopic rod 24 and the liquid source together constitute a hydraulic cylinder; when the driving force for the extension and retraction of the first telescopic rod 24 is provided by electrics, the first telescopic rod 24 and the electric source together constitute an electric cylinder.

[0059] In other embodiments, in order to facilitate relative sliding between the annular bag 23 and the shift shaft 5 along the axial direction of the shift shaft 5, the grinding device for the automobile shift shaft is configured to also include a first drive cylinder, which is installed on the top of the base 1, and the output shaft of the first drive cylinder is fixedly connected to the clamping mechanism, so as to drive the shift shaft 5 to slide along its own axial direction through the clamping mechanism.

[0060] During use, the first drive cylinder is started, and the output shaft of the first drive cylinder extends or retracts, synchronously driving the shift shaft 5 to slide along its own axial direction.

[0061] It can be understood that the first driving cylinder can be configured as any one of a hydraulic cylinder, a pneumatic cylinder or an electric cylinder.

[0062] In a further embodiment, in order to improve the grinding efficiency or adapt to the shift shaft 5 having multiple spiral grooves 501, the number of grinding mechanisms 2 can be multiple and arranged along the circumferential direction.

[0063] Specifically in this embodiment, the number of grinding mechanisms 2 can be set to three, and they are evenly arranged along the circumferential direction, and can grind a spiral groove 501 at the same time, so that in a single grinding stroke, the same spiral groove 501 can be grinded three times, which is conducive to improving the grinding efficiency; Fig.11As shown, a shift shaft 5 has three spiral grooves 501, and the starting ends of the three spiral grooves 501 are spaced 120 degrees apart in the circumferential direction. When grinding this shift shaft 5, the number of grinding mechanisms 2 can be set to three and evenly arranged in the circumferential direction, and the three spiral grooves 501 can be ground at the same time, so that in a single grinding stroke, the three spiral grooves 501 can be ground, which is beneficial to improve applicability.

[0064] In a further embodiment, in order to synchronously drive the multiple rotating shafts 21 to rotate, the grinding device for the automobile shift shaft is configured to further include a transmission mechanism 4, and the transmission mechanism 4 is configured to synchronously drive the multiple rotating shafts 21 to rotate.

[0065] Specifically in the embodiment, the transmission mechanism 4 can be configured to include a driving member and a plurality of second telescopic rods 42, the second telescopic rods 42 extending in the radial direction of the rotating ring 3 and being telescopic, the first end of the second telescopic rods 42 being arranged on the inner circumferential wall of the rotating ring 3, and the second end being suspended; the plurality of second telescopic rods 42 are arranged in the circumferential direction; a mounting shaft 43 is provided on the second end of each second telescopic rod 42, the axis of the mounting shaft 43 is parallel to the axis of the shift shaft 5 and is rotatable; a first friction wheel 44 is sleeved on each mounting shaft 43, the first friction wheel 44 is rotatable, and a friction belt 45 is commonly sleeved on all the first friction wheels 44 for transmission; a second friction wheel 46 is sleeved on each rotating shaft 21, the second friction wheel 46 is rotatable, and all the second friction wheels 46 are friction-driven with the friction belt 45; the driving member is configured to provide a driving force for rotating one of the first friction wheels 44.

[0066] like Figure 3 As shown, the number of the second telescopic rods 42 can be six, and they are evenly divided into three groups. The three groups of second telescopic rods 42 are evenly arranged along the circumferential direction, and the two second telescopic rods 42 in the same group are arranged at intervals along the axial direction of the rotating ring 3; to facilitate the installation of the mounting shaft 43, a mounting ring is fixedly provided at the end of the second end of each second telescopic rod 42, and the axis of the mounting ring is arranged parallel to the axis of the rotating ring 3. When installing, the two ends of the mounting shaft 43 are respectively inserted into the mounting rings on the two second telescopic rods 42 in the same group, and are coaxially arranged with the mounting rings and can rotate; the first friction wheel 44 is coaxially and fixedly sleeved on the mounting shaft 43; the friction belt 45 is set as an annular structure, and is simultaneously transmission sleeved on the three first friction wheels 44; the driving member is set as a second driving motor 41, and is installed on one of the mounting rings, and the motor shaft of the second driving motor 41 is coaxially and fixedly inserted on the mounting shaft 43 on the mounting ring; as shown Fig.10 As shown, the second friction wheel 46 is coaxially and fixedly sleeved on the rotating shaft 21 , and is located on both sides of one of the fixing rings 212 together with the ball sleeve 211 . The second friction wheel 46 is frictionally abutted against the outer side of the friction belt 45 during installation.

[0067] During use, the second drive motor 41 is started, and the second drive motor 41 drives the first friction wheel 44 to rotate through the installation shaft 43. The first friction wheel 44 and the other two first friction wheels 44 cooperate to drive the friction belt 45 to form a closed conveying loop; during the movement of the friction belt 45, the friction belt 45 drives the three second friction wheels 46 to rotate through friction transmission, and the second friction wheels 46 synchronously drive the respective rotating shafts 21 to rotate, and the rotating shaft 21 synchronously drives the annular capsule 23 thereon to rotate, so as to grind the shift shaft 5.

[0068] In a further embodiment, in order to facilitate automatic tensioning of the friction belt 45, the transmission mechanism 4 is configured to also include an elastic member, which is connected between the second end of the second telescopic rod 42 and the rotating ring 3. Under the elastic action of the elastic member, the second telescopic rod 42 has a tendency to shorten to tension the friction belt 45.

[0069] Specifically in this embodiment, the elastic member can be set as a tension spring, and the number can be set to six, and they are respectively inserted into the second telescopic rod 42. Under the action of the tension spring, the second telescopic rod 42 has a tendency to shorten, so that the friction belt 45 can be stretched open.

[0070] In other embodiments, the driving force for the extension and retraction of the second telescopic rod 42 can also be set to be provided by air pressure, hydraulic pressure or electric power, and when the driving force for the extension and retraction of the second telescopic rod 42 is provided by air pressure, the second telescopic rod 42 and the air source together constitute a pneumatic cylinder; when the driving force for the extension and retraction of the second telescopic rod 42 is provided by hydraulic pressure, the second telescopic rod 42 and the liquid source together constitute a hydraulic cylinder; when the driving force for the extension and retraction of the second telescopic rod 42 is provided by electric power, the second telescopic rod 42 and the electric source together constitute an electric cylinder, so as to be able to tension the friction belt 45.

[0071] In other embodiments, the transmission mechanism 4 can also be configured to include three third drive motors, which are respectively arranged on the suspended ends of the three groups of first telescopic rods 24, and the motor shafts of the third drive motors are coaxially and fixedly inserted on the rotating shaft 21.

[0072] During use, the three third drive motors are started at the same time, and the three third drive motors synchronously drive the respective rotating shafts 21 to rotate, and the rotating shaft 21 synchronously drives the annular capsule 23 thereon to rotate, so as to grind the shift shaft 5.

[0073] In other embodiments, in order to facilitate the annular bag 23 to slide relative to the shift shaft 5 along the spiral groove 501, the grinding device for the automobile shift shaft can be configured to also include a rotating mechanism and a moving mechanism, the rotating mechanism is configured to drive the shift shaft 5 to rotate; the moving mechanism is configured to provide a driving force for the shift shaft 5 to move along its own axial direction.

[0074] Specifically in this embodiment, the rotating mechanism can be configured to include a fourth drive motor, and the moving mechanism can be configured to be a second drive cylinder, wherein the second drive cylinder is installed on the top of the base 1, and the axis of the output shaft of the second drive cylinder extends in the horizontal direction and is arranged to coincide with the axis of the annular structure of the base 1; the fourth drive motor is installed at the end of the output shaft of the second drive cylinder, and the axis of the motor shaft of the fourth drive motor is in the horizontal direction and fixedly connected to the clamping mechanism, and the axis of the motor shaft of the fourth drive motor coincides with the axis of the shift shaft 5.

[0075] During use, the second drive cylinder and the fourth drive motor are started simultaneously, wherein the second drive cylinder drives the shift shaft 5 to move along its own axial direction relative to the annular capsule 23 through the fourth drive motor and the clamping mechanism; the fourth drive motor drives the shift shaft 5 to rotate, so that the shift shaft 5 can rotate relative to the annular capsule 23, so that the annular capsule 23 can slide along the spiral groove 501 relative to the shift shaft 5.

[0076] It can be understood that the second driving cylinder can be configured as any one of a hydraulic cylinder, a pneumatic cylinder or an electric cylinder.

[0077] In other embodiments, the force for the annular bladder 23 to expand may be provided by liquid.

[0078] Specifically in this embodiment, the liquid can be set as hydraulic oil, and is filled in the annular bag 23 when in use, so that the annular bag 23 is in an expanded state.

[0079] In other embodiments, the force for the annular capsule 23 to expand may also be provided by gas; specifically, the gas may be set to air, and filled inside the annular capsule 23 during use, so that the annular capsule 23 is in an expanded state.

[0080] In some other embodiments, the annular bag 23 is at least a double-layer structure, wherein the inner layer is a rubber layer 231 and the outer layer is a Teflon layer 232 .

[0081] Specifically in this embodiment, the provision of the rubber layer 231 enables the annular capsule 23 to deform freely; the provision of the Teflon layer 232 enables the annular capsule 23 to expand normally, but will not expand only toward one end like a balloon.

[0082] In other embodiments, the annular bladder 23 may also be configured as a three-layer structure, with the inner layer being a rubber layer 231 , the middle layer being a Teflon layer 232 , and the outermost layer being a nylon layer 233 , so as to improve the wear resistance of the annular bladder 23 .

[0083] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0084] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A grinding device for a vehicle shift shaft, characterized in that: The grinding device for the automobile shift shaft comprises: Machine base; a clamping mechanism configured to clamp a shift shaft; A grinding mechanism, the grinding mechanism comprising a rotating shaft, a sleeve ring, an annular bag and a plurality of brush rods, the rotating shaft is arranged on the machine base, the axis of the rotating shaft is parallel to the axis of the shift shaft, the rotating shaft can slide along the radial direction of the shift shaft and can rotate; the sleeve ball is hinged on the rotating shaft; the annular bag is sleeved on the sleeve ring; the plurality of brush rods are all arranged on the annular bag; when in use, the annular bag is partially inserted into the spiral groove on the shift shaft and is in an expanded state so as to adapt to the shape of the spiral groove, the annular bag can slide along the spiral groove relative to the shift shaft so as to grind the shift shaft through the brush rod; The force for the annular sac to expand is provided by liquid; The annular bag is at least a double-layer structure, with an inner layer being a rubber layer and an outer layer being a Teflon layer.

2. The grinding device for automobile shift shaft according to claim 1, characterized in that: The grinding device for the automobile shift shaft also includes a rotating ring, which is arranged on the machine base and can rotate; the rotating shaft is arranged on the rotating ring and can rotate synchronously with the rotating ring.

3. The grinding device for automobile shift shaft according to claim 2, characterized in that: The grinding mechanism further includes a first telescopic rod, which extends along the radial direction of the rotating ring and is connected between the rotating shaft and the rotating ring and can be telescopic.

4. The grinding device for automobile shift shaft according to claim 3, characterized in that: There are multiple grinding mechanisms, which are arranged along the circumferential direction.

5. The grinding device for automobile shift shaft according to claim 4, characterized in that: The grinding device for the automobile shift shaft also includes a transmission mechanism, and the transmission mechanism is configured to be able to synchronously drive the multiple rotating shafts to rotate.

6. The grinding device for automobile shift shaft according to claim 5, characterized in that: The transmission mechanism includes a driving member and a plurality of second telescopic rods, wherein the second telescopic rods extend in the radial direction of the rotating ring and are telescopic, wherein the first end of the second telescopic rod is arranged on the inner circumferential wall of the rotating ring, and the second end is suspended; the plurality of second telescopic rods are arranged in the circumferential direction; a mounting shaft is arranged on the second end of each of the second telescopic rods, wherein the axis of the mounting shaft is parallel to the axis of the shift shaft and is rotatable; a first friction wheel is sleeved on each of the mounting shafts, the first friction wheel is rotatable, and a friction belt is commonly sleeved on all of the first friction wheels; a second friction wheel is sleeved on each of the rotating shafts, the second friction wheel is rotatable, and all of the second friction wheels are frictionally driven with the friction belt; the driving member is configured to provide a driving force for rotating one of the first friction wheels.

7. The grinding device for automobile shift shaft according to claim 6, characterized in that: The transmission mechanism further comprises an elastic member connected between the second end of the second telescopic rod and the rotating ring. Under the elastic action of the elastic member, the second telescopic rod has a tendency to shorten so as to tension the friction belt.

8. The grinding device for automobile shift shaft according to claim 1, characterized in that: The grinding device for the automobile shift shaft also includes a rotating mechanism and a moving mechanism. The rotating mechanism is configured to drive the shift shaft to rotate; the moving mechanism is configured to provide a driving force for the shift shaft to move along its own axial direction.

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