Handheld fixing device for bearing

Abstract

The utility model relates to a fixing device, in particular to a handheld fixing device for a bearing. The utility model discloses a handheld fixing device for a bearing. Comprising a bottom supporting assembly, a pre-positioning assembly arranged at the center position of the bottom supporting assembly, an adjusting and fixing assembly arranged on the bottom supporting assembly and spaced from the periphery of the pre-positioning assembly, and a power control grabbing assembly arranged on the periphery of the bottom supporting assembly. The utility model aims to provide the handheld fixing device for the bearing, which is easy to carry and more practical.

Description

Technical Field

[0001] The utility model relates to a fixing device, in particular to a handheld fixing device for a bearing. Background Art

[0002] Bearings are components that stabilize and reduce the load friction coefficient during mechanical transmission. Alternatively, they are used to reduce the friction coefficient during power transmission and maintain the center position of the shaft when other parts move relative to each other on the shaft.

[0003] Currently, most bearings are clamped and fixed by seat clamps for bearing inspection and processing. Clamping by seat clamps not only fixes the position and is cumbersome to operate, but also makes the bearings easily shifted, making it very inconvenient to use. Utility Model Content

[0004] In view of this, the present invention provides a handheld fixing device for a bearing, with the purpose of providing a handheld fixing device for a bearing that is easy to carry and more practical.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A handheld fixing device for a bearing, comprising a bottom support assembly, a pre-positioning assembly arranged at the center of the bottom support assembly, an adjustment and fixing assembly arranged on the bottom support assembly and with a peripheral gap from the pre-positioning assembly, and a power control gripping assembly arranged on the periphery of the bottom support assembly; the bottom support assembly comprises a bottom support plate and a plurality of slide grooves arranged in a circular array along the center of the bottom support plate; the pre-positioning assembly comprises an upper pre-positioning post and a lower pre-positioning post arranged at the center of the bottom support plate at intervals from top to bottom, an upper fixing groove is provided at the center of the lower part of the upper pre-positioning post, a lower fixing groove is provided at the center of the upper part of the lower pre-positioning post, a micro motor is fixedly provided on the top of the upper fixing groove, and a lower part of the micro motor is fixedly provided The gear train is fixedly connected to the gear unit and the gear is fixedly connected to the gear unit in a horizontal manner, and a driving gear is fixedly connected to the driving gear in a horizontal manner. A plurality of driven gears are meshed and connected to the driving gear. The plurality of driven gears are correspondingly connected to the transmission ends of the plurality of multi-stage telescopic components, and the moving ends of the plurality of multi-stage telescopic components are correspondingly provided with rubber baffles; the adjustment and fixing component includes a plurality of guide cylinders correspondingly provided in the slide groove through sliders, a plurality of arc-shaped telescopic fixing plates correspondingly fixedly connected to the guide cylinder push-pull rods in the plurality of guide cylinders, and a plurality of electric push rods whose two ends are respectively provided on the peripheries of two adjacent guide cylinders; the power control gripping component includes a gripping handle provided on the periphery of the bottom support plate, a controller provided in the gripping handle, and a keypad provided on the outside of the gripping handle.

[0007] Preferably, the multi-stage telescopic assembly includes a driving screw fixedly inserted into the driven gear, and the driving screw is rotatably arranged on the upper pre-positioning column at one end adjacent to the driving gear. The outer periphery of the driving screw on the side away from the driving gear is sequentially sleeved with an inner adjustment cylinder, a middle adjustment cylinder, an outer adjustment cylinder and a limit fixing cylinder from the inside to the outside.

[0008] Preferably, it further comprises a pressure sensor, wherein a plurality of the pressure sensors are correspondingly arranged on the protruding ends of the push-pull rods of the guide cylinder, and the starting switches of the plurality of the pressure sensors are electrically connected to the controller.

[0009] Preferably, the controller is electrically connected to the starting switch of the guide cylinder push-pull rod, the starting switch of the micro motor, the starting switch of the electric push rod and the keypad respectively.

[0010] Preferably, a plurality of limiting protrusions are correspondingly provided in the slide groove, and the plurality of limiting protrusions are all made of insulating rubber material.

[0011] Preferably, an anti-slip cover is provided on the outer periphery of the gripping handle.

[0012] Preferably, magnetic layers are correspondingly provided at both ends of each of the arc-shaped telescopic fixing plates.

[0013] Preferably, the plurality of arc-shaped telescopic fixing plates are all made of a high-strength and high-toughness alloy material.

[0014] The beneficial effects of the utility model are:

[0015] 1. The utility model includes a bottom support assembly, a pre-positioning assembly arranged at the center of the bottom support assembly, an adjustment and fixing assembly arranged on the bottom support assembly and with a peripheral gap from the pre-positioning assembly, and a power control gripping assembly arranged on the periphery of the bottom support assembly, wherein the arrangement of the bottom support assembly provides placement space and effective support for the components on the entire bearing fixing device, the arrangement of the pre-positioning assembly can perform preliminary positioning of the bearing to be fixed, the arrangement of the adjustment and fixing assembly can be adjusted to quickly fix bearings of different sizes and models, and the arrangement of the power control gripping assembly makes it convenient for the user to take and place the bearing fixing device while also being able to adjust the bearing fixing device The electrical components on the bearing are controlled so that the bearing fixing device can normally perform its functions. Generally speaking, compared with the previous bearing fixing devices, this fixing device is more portable and can fix various types of bearings, and the bearings can be preliminarily positioned by the pre-positioning component, which improves the efficiency of bearing fixing to a certain extent and is more flexible and practical; the bottom support component includes a bottom support plate and a plurality of slide grooves arranged in a circular array along the center of the bottom support plate, wherein the bottom support plate can be a symmetrical shape such as a square or a circle, and the present embodiment is not limited thereto. This arrangement provides placement space and effective support for the components on the entire bearing fixing device through the bottom support plate and the slide grooves thereon; pre-positioning The assembly includes an upper pre-positioning column and a lower pre-positioning column which are spaced from top to bottom at the center of the bottom support plate. An upper fixing groove is provided at the center of the lower part of the upper pre-positioning column, and a lower fixing groove is provided at the center of the upper part of the lower pre-positioning column. A micro motor is fixedly provided on the top of the upper fixing groove. A rotating shaft is fixedly connected to the bottom of the micro motor. The lower periphery of the rotating shaft is horizontally fixedly connected to a driving gear. The top surface of the driving gear is located below the upper pre-positioning column and the bottom surface is located above the lower pre-positioning column. A plurality of driven gears are meshed with the driving gear, and the plurality of driven gears are vertically meshed with the driving gear. The plurality of driven gears are correspondingly connected to the transmission ends of the plurality of multi-stage telescopic assemblies. The movement of the plurality of multi-stage telescopic assemblies A rubber baffle is provided at the corresponding end, and a placement groove is opened on the outer periphery of the upper pre-positioning column and the lower pre-positioning column corresponding to the rubber baffle, and the area of ​​the rubber baffle is larger than the area of ​​the placement groove opening. Multiple multi-stage telescopic components are all located in the placement groove. The micro motor can adopt the FRK-130CH DC brushed motor produced by Shenzhen Fushunxin Hardware and Electrical Co., Ltd. This setting can perform preliminary positioning of the inner ring of the bearing through the synchronous extension and contraction of multiple multi-stage telescopic components in the placement groove and the synchronous movement of multiple rubber baffles corresponding to the multiple multi-stage telescopic components during the extension and contraction process, which provides an effective benchmark for the subsequent further positioning of the bearing. At the same time, the setting of the rubber baffle also avoids damage to the bearing during the fixing process;The adjusting and fixing assembly includes a plurality of guide cylinders correspondingly arranged in the slide groove through sliders, a plurality of arc-shaped telescopic fixing plates correspondingly fixedly connected to the guide cylinder push-pull rods in the plurality of guide cylinders, and a plurality of electric push rods respectively arranged on the periphery of two adjacent guide cylinders at both ends. The electric push rod can adopt the Juying 12 / 24V micro-pen-type electric push rod produced by Zhejiang Juying Intelligent Technology Co., Ltd., wherein the plurality of arc-shaped telescopic fixing plates are adjacent to each other through the magnetic attraction of the magnetic layers at both ends to form a telescopic fixing ring plate. This setting can be achieved by controlling the synchronous pushing and pulling of the plurality of guide cylinder push-pull rods and the synchronous extension and retraction of the plurality of electric push rods, and at the same time, the plurality of sliders drive the synchronous sliding of the plurality of guide cylinders and the simultaneous extension and retraction of the plurality of arc-shaped telescopic fixing plates, thereby quickly adjusting and fixing the bearings according to the size and model of the bearings; the power control gripping assembly includes a gripping handle arranged on the periphery of the bottom support plate, a controller arranged in the gripping handle, and a keypad arranged on the outside of the gripping handle. The controller can adopt a small controller PNOZmult The i2 model controller is compatible with common communication networks and can simultaneously connect, control, and monitor multiple components. The handle allows users to quickly carry the bearing fixture or secure it. The controller and keyboard control the electrical components on the bearing fixture, ensuring the device functions properly.

[0016] 2. The multi-stage telescopic assembly of the utility model includes a driving screw fixedly arranged in the driven gear, the outer periphery of the driving screw adjacent to the driving gear has no thread, the end of the driving screw adjacent to the driving gear is rotatably arranged on the upper pre-positioning column, and the outer periphery of the driving screw away from the driving gear is sequentially sleeved with an inner adjustment cylinder, a middle adjustment cylinder, an outer adjustment cylinder and a limit fixing cylinder from the inside to the outside, wherein the limit fixing cylinder is fixedly arranged on the upper pre-positioning column ring and the lower pre-positioning column on the side adjacent to the driven gear, a first guide groove is opened in the limit fixing cylinder, and the outer wall of the outer adjustment cylinder is slidably arranged on the first In the guide groove, the inner side of the inner end of the outer adjusting cylinder (the end adjacent to the driven gear) is connected to the outer peripheral thread of the driving screw, and the inner end of the outer adjusting cylinder (the end adjacent to the driven gear) and the inner end of the inner adjusting cylinder (the end adjacent to the driven gear) are connected in an annular rotation through an annular rotating connector. The annular rotating connector can adopt a 360° rotating connector commonly available on the market or other connectors that can realize the rotation movement of the inner adjusting cylinder. The specific structure of the annular rotating connector does not fall within the scope of protection of this embodiment, so this embodiment does not limit its structure. The inner end of the inner adjusting cylinder The inner side of the end portion (the end portion adjacent to the driven gear) is connected to the outer periphery of the driving screw, the outer periphery of the inner adjusting cylinder is provided with an external thread, and a second guide groove is provided in the outer adjusting cylinder. The outer wall of the middle adjusting cylinder is slidably provided in the second guide groove, and the inner side of the inner end portion of the middle adjusting cylinder (the end portion adjacent to the driven gear) is connected to the outer periphery of the inner adjusting cylinder. The micro motor is controlled by the controller to drive the rotating shaft and the driving gear fixedly connected to the rotating shaft to rotate, and the driving gear then drives the driven gear meshing with it to rotate, and the rotation of the driven gear can drive the driving screw to rotate, and the driving screw The rotation of the rod can drive the outer adjusting cylinder to move linearly along the periphery of the driving screw under the limiting guiding action of the first guide groove, and drive the inner adjusting cylinder to move with the outer adjusting cylinder and rotate along the periphery of the driving screw. The rotation of the inner adjusting cylinder can synchronously drive the middle adjusting cylinder to move linearly along the periphery of the inner adjusting cylinder under the limiting guiding action of the second guide groove, and then drive the rubber baffle to adjust its position through the inner adjusting cylinder. The principle of the whole process is simple, and the extension and folding of the multi-stage telescopic assembly can be quickly realized, which is conducive to quickly adjusting the position of the rubber baffle to quickly realize the pre-positioning of the bearing.

[0017] 3. The utility model also includes a pressure sensor, and multiple pressure sensors are correspondingly arranged on the protruding ends of the push-pull rods of the guide cylinder. The start switches of the multiple pressure sensors are electrically connected to the controller. The pressure sensor can adopt the CYG500 series silicon piezoresistive miniature and thin dynamic pressure sensor produced by Kunshan Shuangqiao Sensor Measurement and Control Technology Co., Ltd. The pressure sensor can monitor the pressure of bearings of different sizes and models when they are fixed in real time under the joint action of the pre-positioning component and the adjustment and fixing component, so that the user can quickly judge the degree to which the bearing is tightened and fixed.

[0018] 4. The controller of the utility model is electrically connected to the starting switch of the guide cylinder push-pull rod, the starting switch of the micro motor, the starting switch of the electric push rod and the keyboard respectively. This setting enables the bearing fixing device to normally perform its function by controlling the starting switch of the guide cylinder push-pull rod, the starting switch of the micro motor, the starting switch of the electric push rod and the keyboard respectively.

[0019] 5. In the slide groove of the present invention, a plurality of limiting protrusions are correspondingly provided. The plurality of limiting protrusions are made of insulating rubber material. The setting of the limiting protrusions can limit the slider, which is conducive to the rapid fixation of the bearing.

[0020] 6. The outer periphery of the gripping handle of the utility model is provided with an anti-slip cover, which makes the user safer when holding the device and reduces the possibility of the bearing fixing device slipping during use.

[0021] 7. In the present invention, magnetic layers are provided at both ends of each arc-shaped telescopic fixing plate. This arrangement enables multiple arc-shaped telescopic fixing plates to be adjacent to each other through the magnetic attraction of the magnetic layers at both ends to form a telescopic fixing ring plate together through magnetic attraction, thereby facilitating the fixation of the bearing.

[0022] 8. The multiple arc-shaped telescopic fixing plates of the present invention are all made of high-strength and high-toughness alloy materials. This arrangement ensures the service life of the bearing fixing device while also ensuring its working efficiency when fixing the bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of a top-view cross-sectional structure of the present utility model;

[0024] Figure 2 This is a schematic diagram of the top structure of the utility model;

[0025] Figure 3 This is a side sectional structural diagram of the present utility model;

[0026] Figure 4 This is a schematic diagram of the installation structure of the multi-stage telescopic assembly of the utility model;

[0027] Figure 5 for Figure 3 Schematic diagram of the enlarged structure of part A;

[0028] Figure 6 for Figure 4 Schematic diagram of the enlarged structure of part B.

[0029] Reference numerals: 1: bottom support assembly, 2: pre-positioning assembly, 3: adjustment and fixing assembly, 4: power control gripping assembly, 5: bottom support plate, 6: slide, 7: upper pre-positioning column, 8: lower pre-positioning column, 9: upper fixing groove, 10: lower fixing groove, 11: micro motor, 12: rotating shaft, 13: driving gear, 14: driven gear, 15: multi-stage telescopic assembly, 16: rubber baffle, 17: slider, 18: guide cylinder, 19: guide cylinder push Pull rod, 20: Arc-shaped telescopic fixing plate, 21: Electric push rod, 22: Grasping handle, 23: Controller, 24: Keyboard, 25: Driving screw, 26: Inner adjustment cylinder, 27: Middle adjustment cylinder, 28: Outer adjustment cylinder, 29: Limit fixing cylinder, 30: Pressure sensor, 31: Limiting protrusion, 32: Anti-slip sleeve, 33: Magnetic layer, 34: Placement slot, 35: First guide slot, 36: Second guide slot, 37: Annular rotating connector. DETAILED DESCRIPTION

[0030] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0031] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model 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 limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of this utility model, 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 can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, 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 this utility model based on the specific circumstances.

[0033] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5and Figure 6As shown, it includes a bottom support component 1, a pre-positioning component 2 arranged at the center position of the bottom support component 1, an adjustment and fixing component 3 arranged on the bottom support component 1 and with a peripheral gap with the pre-positioning component 2, and a power control gripping component 4 arranged on the periphery of the bottom support component 1, wherein the setting of the bottom support component 1 provides placement space and effective support for the parts on the entire bearing fixing device, the setting of the pre-positioning component 2 can perform preliminary positioning of the bearing to be fixed, the setting of the adjustment and fixing component 3 can be adjusted to quickly fix bearings of different sizes and models, and the setting of the power control gripping component 4 makes it convenient for the user to take and place the bearing fixing device while also fixing the bearing. The electrical components on the device are controlled so that the bearing fixing device can normally perform its functions. Generally speaking, compared with previous bearing fixing devices, this fixing device is more portable and can fix various types of bearings, and the bearing can be preliminarily positioned by the pre-positioning component 2, which improves the efficiency of bearing fixing to a certain extent and is more flexible and practical; the bottom support component 1 includes a bottom support plate 5 and a plurality of slide grooves 6 opened in a ring array along the center of the bottom support plate 5, wherein the bottom support plate 5 can be a symmetrical shape such as a square or a circle, and this embodiment is not limited to this. This arrangement provides placement space and effective support for the components on the entire bearing fixing device through the bottom support plate 5 and the slide grooves 6 thereon;The pre-positioning assembly 2 includes an upper pre-positioning column 7 and a lower pre-positioning column 8 spaced apart from top to bottom and arranged at the center position of the bottom support plate 5. An upper fixing groove 9 is provided at the center of the lower part of the upper pre-positioning column 7, and a lower fixing groove 10 is provided at the center of the upper part of the lower pre-positioning column 8. A micro motor 11 is fixedly provided on the top of the upper fixing groove 9. A rotating shaft 12 is fixedly connected to the bottom of the micro motor 11. The lower periphery of the rotating shaft 12 is horizontally fixedly connected to a driving gear 13. The top surface of the driving gear 13 is located below the upper pre-positioning column 7 and the bottom end surface is located above the lower pre-positioning column 8. A plurality of driven gears 14 are meshed and connected to the driving gear 13. The driven gears 14 are all vertically meshed with the driving gears 13, and the multiple driven gears 14 are correspondingly connected to the transmission ends of the multiple multi-stage telescopic components 15. The mobile ends of the multiple multi-stage telescopic components 15 are correspondingly provided with rubber baffles 16. The outer periphery of the upper pre-positioning column 7 and the lower pre-positioning column 8 corresponds to the rubber baffles 16 and is provided with placement grooves 34. The area of ​​the rubber baffles 16 is larger than the area of ​​the opening of the placement groove 34. The multiple multi-stage telescopic components 15 are all located in the placement groove 34. The micro motor 11 can adopt the FRK-130CH DC brushed motor produced by Shenzhen Fushunxin Hardware and Electrical Co., Ltd. This setting can be placed through the placement groove 34. The synchronous extension and contraction of the multiple multi-stage telescopic components 15 and the synchronous movement of the multiple rubber baffles 16 correspondingly connected to the multiple multi-stage telescopic components 15 during the extension and contraction process perform preliminary positioning of the inner ring of the bearing, providing an effective reference for the subsequent further positioning of the bearing. At the same time, the setting of the rubber baffles 16 also avoids damage to the bearing during the fixing process; the adjustment fixing component 3 includes a plurality of guide cylinders 18 correspondingly arranged in the slide groove 6 through the slider 17, a plurality of arc-shaped telescopic fixing plates 20 correspondingly connected to the guide cylinder push-pull rods 19 in the multiple guide cylinders 18, and two ends respectively arranged on two adjacent guide cylinders. 18. The multiple electric push rods 21 on the periphery can be the Juying 12 / 24V miniature pen-type electric push rods 21 produced by Zhejiang Juying Intelligent Technology Co., Ltd., wherein the multiple arc-shaped telescopic fixed plates 20 are adjacent to each other through the magnetic attraction of the magnetic layers 33 at both ends to form a telescopic fixed ring plate. This setting can be controlled by controlling the synchronous push and pull of the multiple guide cylinder push-pull rods 19 and the synchronous extension and retraction of the multiple electric push rods 21. At the same time, the multiple sliders 17 drive the synchronous sliding of the multiple guide cylinders 18 and the simultaneous extension and retraction of the multiple arc-shaped telescopic fixed plates 20, thereby quickly adjusting and fixing the bearings according to the size and model of the bearings;The power control grip assembly 4 includes a grip handle 22 disposed on the periphery of the bottom support plate 5, a controller 23 disposed within the grip handle 22, and a keypad 24 disposed outside the grip handle 22. The controller 23 can be a small controller such as the PNOZmulti 2 model. This controller 23 is compatible with common communication networks and can simultaneously control and monitor the connections of multiple components. The grip handle 22 allows the user to quickly carry the bearing fixture or use it to quickly secure a bearing. The controller 23 and keypad 24 together control the electrical components of the bearing fixture, ensuring the proper function of the device.

[0034] like Figure 3 、 Figure 4 、 Figure 4 and Figure 6As shown, the multi-stage telescopic assembly 15 includes a driving screw 25 fixedly arranged in the driven gear 14, and the outer periphery of the driving screw 25 adjacent to the driving gear 13 has no thread, and the end of the driving screw 25 adjacent to the driving gear 13 is rotatably arranged on the upper pre-positioning column 7, and the outer periphery of the driving screw 25 away from the driving gear 13 is sequentially sleeved with an inner adjustment cylinder 26, a middle adjustment cylinder 27, an outer adjustment cylinder 28 and a limiting fixed cylinder 29 from the inside to the outside, wherein the limiting fixed cylinder 29 is fixedly arranged on the upper pre-positioning column 7 ring and the lower pre-positioning column 8 on the side adjacent to the driven gear 14, and a first guide groove 35 is opened in the limiting fixed cylinder 29, and the outer wall of the outer adjustment cylinder 28 is slidingly arranged In the first guide groove 35, the inner side of the inner end of the outer layer adjusting cylinder 28 (the end adjacent to the driven gear 14) is connected to the outer periphery of the driving screw 25 by a thread, and the inner end of the outer layer adjusting cylinder 28 (the end adjacent to the driven gear 14) and the inner end of the inner layer adjusting cylinder 26 (the end adjacent to the driven gear 14) are connected in an annular rotation through an annular rotating connector 37. The annular rotating connector can adopt a 360° rotating connector commonly available on the market or other connectors that can realize the rotation movement of the inner layer adjusting cylinder 26. The specific structure of the annular rotating connector 37 does not fall within the scope of protection of this embodiment, so this embodiment does not limit its structure. The inner end of the inner layer adjusting cylinder 26 (the end adjacent to the driven gear 14) is connected in an annular rotation through an annular rotating connector 37. The inner side of the end of the driven gear 14 is connected to the outer periphery of the driving screw 25, the outer periphery of the inner adjusting cylinder 26 is provided with an external thread, and a second guide groove 36 is provided in the outer adjusting cylinder 28. The outer wall of the middle adjusting cylinder 27 is slidably provided in the second guide groove 36, and the inner side of the inner end of the middle adjusting cylinder 27 (adjacent to the end of the driven gear 14) is connected to the outer periphery of the inner adjusting cylinder 26. The controller 23 controls the micro motor 11 to drive the rotating shaft 12 and the driving gear 13 fixedly connected to the rotating shaft 12 to rotate, and the driving gear 13 then drives the driven gear 14 meshing with it to rotate. The rotation of the driven gear 14 can drive the driving screw 25 to rotate, driving The rotation of the screw 25 can drive the outer adjusting cylinder 28 to move linearly along the periphery of the driving screw 25 under the limiting and guiding action of the first guide groove 35, and drive the inner adjusting cylinder 26 to move with the outer adjusting cylinder 28 and rotate along the periphery of the driving screw 25. The rotation of the inner adjusting cylinder 26 can synchronously drive the middle adjusting cylinder 27 to move linearly along the periphery of the inner adjusting cylinder 26 under the limiting and guiding action of the second guide groove 36, and then drive the rubber baffle 16 to adjust its position through the inner adjusting cylinder 26. The principle of the whole process is simple, and the extension and folding of the multi-stage telescopic assembly 15 can be quickly realized, which is conducive to quickly adjusting the position of the rubber baffle 16 to quickly realize the pre-positioning of the bearing.

[0035] like Figure 2As shown, it also includes a pressure sensor 30. Multiple pressure sensors 30 are correspondingly arranged on the protruding ends of the guide cylinder push-pull rods 19. The start switches of the multiple pressure sensors 30 are electrically connected to the controller 23. The pressure sensor 30 can adopt the CYG500 series silicon piezoresistive miniature, thin dynamic pressure sensor 30 produced by Kunshan Shuangqiao Sensor Measurement and Control Technology Co., Ltd. The pressure sensor 30 can monitor the pressure of bearings of different sizes and models when they are fixed in real time under the joint action of the pre-positioning component 2 and the adjustment and fixing component 3, so that the user can quickly judge the degree to which the bearings are tightened and fixed.

[0036] like Figure 1 、 Figure 2 、 Figure 3 and Figure 5 As shown, the controller 23 is electrically connected to the starting switch of the guide cylinder push-pull rod 19, the starting switch of the micro motor 11, the starting switch of the electric push rod 21 and the keypad 24 respectively. This setting enables the bearing fixing device to normally perform its function by controlling the starting switch of the guide cylinder push-pull rod 19, the starting switch of the micro motor 11, the starting switch of the electric push rod 21 and the keypad 24 respectively through the controller 23.

[0037] like Figure 3 As shown, a plurality of limiting protrusions 31 are correspondingly provided in the slide groove 6. The plurality of limiting protrusions 31 are all made of insulating rubber material. The setting of the limiting protrusions 31 can limit the slider 17, which is conducive to the rapid fixation of the bearing.

[0038] like Figure 2 As shown, an anti-slip sleeve 32 is provided on the outer periphery of the gripping handle 22. This arrangement makes it safer for the user to hold the device and reduces the possibility of the bearing fixing device slipping during use.

[0039] like Figure 1 and Figure 2 As shown, a magnetic layer 33 is provided at both ends of each arc-shaped telescopic fixing plate 20. This arrangement allows multiple arc-shaped telescopic fixing plates 20 to form a telescopic fixing ring plate together through the magnetic attraction effect of the magnetic layers 33 at both ends, thereby facilitating the fixation of the bearing.

[0040] like Figure 1 、 Figure 2 、 Figure 3 and Figure 5 As shown, the multiple arc-shaped telescopic fixing plates 20 are all made of high-strength, high-toughness alloy material. This arrangement ensures the service life of the bearing fixing device while also ensuring its working efficiency when fixing the bearing.

[0041] The specific operating principle is:

[0042] When using this handheld fixing device for bearings, the user first needs to place the handheld fixing device for bearings to the working position by holding the gripping handle, place the bearing to be fixed on the periphery of the upper pre-positioning column and the lower pre-positioning column, connect the external power supply, so that all electrical components on this device are in operation or standby state, and then click the keyboard to control the micro motor to drive the rotating shaft and the driving gear fixed to the rotating shaft to rotate through the controller. The driving gear then drives the driven gear meshed with it to rotate. The rotation of the driven gear can drive the driving screw to rotate. The rotation of the driving screw can drive the outer adjustment cylinder to move linearly along the periphery of the driving screw under the limiting guide action of the first guide groove, and drive the inner adjustment cylinder to move with the outer adjustment cylinder and rotate along the periphery of the driving screw. The rotation of the inner adjustment cylinder can synchronously drive the middle adjustment cylinder to move linearly along the periphery of the inner adjustment cylinder under the limiting guide action of the second guide groove, and then drive the rubber baffle to be positioned through the inner adjustment cylinder. The position is adjusted until the rubber baffle contacts the inner ring of the bearing to complete the initial positioning of the bearing. The principle of the whole process is simple, and the extension and folding of the multi-stage telescopic assembly can be quickly realized, which is conducive to quickly adjusting the position of the rubber baffle to quickly realize the pre-positioning of the bearing; click on the keyboard, and under the control of the controller, multiple guide cylinder push-pull rods are pushed and pulled synchronously, and multiple electric push rods are extended and retracted synchronously. At the same time, multiple sliders drive multiple guide cylinders to slide synchronously, and multiple arc-shaped telescopic fixed plates are extended and retracted simultaneously, so as to quickly adjust according to the size and model of the bearing. At the same time, the pressure sensor synchronously monitors the pressure value of the bearing. When the value monitored by the pressure sensor reaches the critical value of the pressure required for the fixed bearing size and model, the pressure sensor transmits the value to the controller in the form of an electrical signal. The controller controls the multiple guide cylinder push-pull rods to stop pushing and pulling, and controls the multiple electric push rods to stop extending and retracting. At this time, the multiple arc-shaped telescopic fixed plates synchronously fix the outer ring of the bearing, thereby completing the fixation of the bearing.

[0043] The electrical components appearing in this article can all be connected to the external main controller and 220V AC power through a transformer, and the main controller can be a conventional known device such as a computer that plays a control role. Conventional known devices such as computers that play a control role can receive various data signals monitored by this device in real time. The electrical components provided by the utility model are only used for the purpose of this technical solution based on the structural characteristics of the product. The product will be adjusted and modified after purchase to make it more compatible and consistent with the technical solution of the utility model. It is a technical solution for the best application of this technical solution. The model of its product can be replaced and modified according to the required technical parameters. It is well known to technical personnel in this field. Therefore, technical personnel in this field can clearly obtain corresponding usage effects through the technical solution provided by the utility model.

[0044] The control method of the present invention is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by a person skilled in the art. The provision of power is also common knowledge in the art. In addition, the present invention is mainly used to protect mechanical devices. Therefore, the control method and circuit connection are not explained in detail in the present invention.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A handheld fixing device for a bearing, characterized in that: The invention comprises a bottom support component, a pre-positioning component arranged at the center of the bottom support component, an adjustment and fixing component arranged on the bottom support component and with a peripheral gap from the pre-positioning component, and a power control gripping component arranged on the periphery of the bottom support component; The bottom support assembly includes a bottom support plate and a plurality of slide grooves arranged in a circular array along the center of the bottom support plate; The pre-positioning assembly includes an upper pre-positioning column and a lower pre-positioning column which are spaced from top to bottom and arranged at the center position of the bottom support plate. An upper fixing groove is provided at the center of the lower part of the upper pre-positioning column, and a lower fixing groove is provided at the center of the upper part of the lower pre-positioning column. A micro motor is fixedly provided on the top of the upper fixing groove, and a rotating shaft is fixedly connected to the bottom of the micro motor. A driving gear is fixedly connected to the lower periphery of the rotating shaft in a horizontal manner, and a plurality of driven gears are meshed with the driving gear. The plurality of driven gears are correspondingly connected to the transmission ends of the plurality of multi-stage telescopic assemblies, and the moving ends of the plurality of multi-stage telescopic assemblies are correspondingly provided with rubber baffles; The adjusting and fixing assembly includes a plurality of guide cylinders correspondingly arranged in the slide grooves through sliders, a plurality of arc-shaped telescopic fixing plates correspondingly fixedly connected to the guide cylinder push-pull rods in the plurality of guide cylinders, and a plurality of electric push rods with two ends respectively arranged on the periphery of two adjacent guide cylinders; The power control grip assembly includes a grip handle arranged on the periphery of the bottom support plate, a controller arranged in the grip handle, and a keypad arranged outside the grip handle.

2. A handheld fixing device for a bearing according to claim 1, characterized in that: The multi-stage telescopic assembly includes a driving screw fixedly inserted into the driven gear, and one end of the driving screw adjacent to the driving gear is rotatably set on the upper pre-positioning column. The outer periphery of the driving screw on the side away from the driving gear is sequentially sleeved with an inner adjustment cylinder, a middle adjustment cylinder, an outer adjustment cylinder and a limit fixing cylinder from the inside to the outside.

3. A handheld fixing device for a bearing according to claim 1, characterized in that: It also includes a pressure sensor, and a plurality of the pressure sensors are correspondingly arranged on the protruding ends of the push-pull rods of the guide cylinder, and the starting switches of the plurality of pressure sensors are electrically connected to the controller.

4. A handheld fixing device for a bearing according to claim 1, characterized in that: The controller is electrically connected to the starting switch of the guide cylinder push-pull rod, the starting switch of the micro motor, the starting switch of the electric push rod and the keypad respectively.

5. A handheld fixing device for a bearing according to claim 1, characterized in that: A plurality of limiting protrusions are correspondingly arranged in the slide groove, and the plurality of limiting protrusions are all made of insulating rubber material.

6. A handheld fixing device for a bearing according to claim 1, characterized in that: An anti-slip cover is provided on the outer periphery of the gripping handle.

7. A handheld fixing device for a bearing according to claim 1, characterized in that: Both ends of each arc-shaped telescopic fixing plate are correspondingly provided with a magnetic attraction layer.

8. A handheld fixing device for a bearing according to claim 1, characterized in that: The plurality of arc-shaped telescopic fixing plates are all made of a high-strength and high-toughness alloy material.

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