Joint bearing grinding device

Abstract

The application discloses a kind of joint bearing grinding devices, it is related to bearing manufacturing technical field, including grinding frame, bracing assembly, power input component and power output component, and fixed component for clamping joint bearing is provided on grinding frame;Bracing assembly is taut to the inner ring of joint bearing;Power output component includes driving wheel, adjusting lever, force bar and rocker, force bar is eccentric and is arranged on driving wheel, rocker is rotatably connected with bracing assembly, and two ends of force bar are movably hinged with adjusting lever and rocker;Power input component is drivingly connected with driving wheel, to drive bracing assembly to complete elliptical motion with joint bearing by the crank connecting rod mechanism consisting of driving wheel, adjusting lever, force bar and rocker with power.The application realizes bearing automatic grinding, and grinding efficiency is greatly improved, and the friction force of bearing inner and outer rings can be determined by the force value measured by force bar, to determine whether joint bearing grinding is in place.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bearing manufacturing, in particular to a knuckle bearing grinding device. BACKGROUND

[0002] The knuckle bearing is a very important component, whether the gap between the inner ring and the outer ring of the bearing meets the assembly requirement will directly affect the service life of the connected product, therefore, it is particularly necessary to properly grind the knuckle bearing during the assembly stage to ensure that the gap between the inner ring and the outer ring of the bearing meets the assembly requirement. SUMMARY

[0003] The main purpose of the present application is to provide a knuckle bearing grinding device, which aims to solve the technical problem that the grinding precision of the knuckle bearing is difficult to control accurately in the prior art.

[0004] The technical scheme adopted by the present application is as follows:

[0005] A knuckle bearing grinding device comprises:

[0006] A grinding frame is provided with a fixing assembly for clamping the knuckle bearing;

[0007] A tensioning assembly is tensioned to the inner ring of the knuckle bearing;

[0008] A power output assembly comprises a driving wheel, an adjusting rod, a force measuring rod and a rocker arm, the force measuring rod is eccentrically arranged on the driving wheel, the rocker arm is rotationally connected with the tensioning assembly, and the two ends of the force measuring rod are movably hinged with the adjusting rod and the rocker arm, respectively; and

[0009] A power input assembly is drivingly connected with the driving wheel to drive the tensioning assembly to complete an elliptical motion together with the inner ring of the knuckle bearing through a crank linkage mechanism composed of the driving wheel, the adjusting rod, the force measuring rod and the rocker arm.

[0010] Optionally, the tensioning assembly comprises a tensioning shaft, the tensioning shaft extends into the inner ring of the knuckle bearing, one end of the tensioning shaft is provided with a tensioning claw that expands and contracts in the radial direction, and the other end of the tensioning shaft is provided with a tensioning claw adjusting screw that moves in the axial direction.

[0011] Optionally, one end of the tensioning shaft located outside the inner ring of the knuckle bearing is connected with the rocker arm through an adjusting bearing.

[0012] Optionally, the power input assembly comprises an input driving shaft, an input gear and a source driving wheel, the input gear is arranged on the input driving shaft, the input gear is engaged with the source driving wheel, and the source driving wheel is coaxially rotationally arranged with the driving wheel.

[0013] Optionally, the main wheel is provided with a plurality of adjusting holes along a certain radial line, and the adjusting rod can be connected to different adjusting holes to grind different types of joint bearings.

[0014] Optionally, the fixing assembly comprises a carrier and a clamping piece, the carrier is used for fixing the joint bearing, and the clamping piece is used for fixing the carrier to the grinding frame.

[0015] Optionally, the carrier comprises a U-shaped mounting joint and a fixing plate integrally formed in the mounting joint, and the fixing plate is provided with a bearing hole for mounting the joint bearing.

[0016] Optionally, the clamping piece comprises a fixed clamping plate and a movable clamping plate, the fixed clamping plate is fixed to the grinding frame, the movable clamping plate is mounted to the grinding frame and arranged opposite to the fixed clamping plate, the mounting joint is arranged between the movable clamping plate and the fixed clamping plate, and the movable clamping plate is provided with a locking bolt for fastening the mounting joint.

[0017] Optionally, the grinding frame is provided with a grinding grease storage box, and the grinding grease storage box is provided with a grinding grease flow guide pipe facing the joint bearing.

[0018] Optionally, the grinding grease storage box is provided with a grinding grease filling port, and the grinding grease filling port is provided with a sealing cover.

[0019] Compared with the prior art, the application has the following beneficial effects:

[0020] The joint bearing grinding device provided by the application comprises a fixing assembly, a power input assembly, a power output assembly and a tensioning assembly. The joint bearing to be ground is fixed to the grinding frame by the fixing assembly, and the power output assembly and the joint bearing are connected by the tensioning assembly. The joint bearing is driven to perform an elliptical motion by the power input assembly through the power output assembly, so that the inner ring and the outer ring of the joint bearing have relative motion to realize mutual grinding. During the grinding process, the inner and outer rings of the joint bearing are rubbed due to motion, so that the load cell is subjected to periodic tension and pressure during the grinding process. When the tension or pressure of the load cell tends to be stable, the grinding process of the joint bearing meets the requirements. Therefore, the joint bearing grinding device provided by the application can automatically grind the joint bearing and accurately and independently judge whether the grinding meets the requirements. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 The joint bearing grinding device provided by the application is provided with a U-shaped mounting joint and a fixing plate integrally formed in the mounting joint, and the fixing plate is provided with a bearing hole for mounting the joint bearing. Figure 1 ;

[0022] Figure 2 Schematic diagram of the three-dimensional structure of the joint bearing grinding device provided in the embodiment of the present application Figure 2 ;

[0023] Figure 3 Schematic diagram of the three-dimensional structure of the joint bearing grinding device provided in the embodiment of the present application Figure 3 ;

[0024] Figure 4 Schematic diagram of the three-dimensional structure of the joint bearing grinding device provided in the embodiment of the present application Figure 1 ;

[0025] Figure 5 Schematic diagram of the three-dimensional structure of the joint bearing grinding device provided in the embodiment of the present application Figure 1 ;

[0026] Figure 6 Schematic diagram of the three-dimensional structure of the joint bearing grinding device provided in the embodiment of the present application Figure 2 ;

[0027] Figure 7 Schematic diagram of the three-dimensional structure of the joint bearing grinding device provided in the embodiment of the present application Figure 3 ;

[0028] Figure 8 Schematic diagram of the three-dimensional structure of the joint bearing grinding device provided in the embodiment of the present application Figure 4 ;

[0029] Figure 9 Schematic diagram of the three-dimensional structure of the joint bearing grinding device provided in the embodiment of the present application ;

[0030] Figure 10 Schematic diagram of the three-dimensional structure of the joint bearing grinding device provided in the embodiment of the present application ;

[0031] Figure 11 Schematic diagram of the three-dimensional structure of the joint bearing grinding device provided in the embodiment of the present application ;

[0032] Figure 12 Schematic diagram of the three-dimensional structure of the joint bearing grinding device provided in the embodiment of the present application Figure 1 ;

[0033] Schematic diagram of the three-dimensional structure of the joint bearing grinding device provided in the embodiment of the present application Figure 13 ; Figure 2

[0034] Schematic diagram of the three-dimensional structure of the joint bearing grinding device provided in the embodiment of the present application Figure 14Fig. 1 is a schematic diagram of the transmission relationship between the power input assembly, the power output assembly and the tensioning assembly;

[0035] Figure 15 Fig. 2 is a schematic diagram of the transmission relationship between the power output assembly and the tensioning assembly Figure 1 ;

[0036] Figure 16 Fig. 3 is a schematic diagram of the transmission relationship between the power output assembly and the tensioning assembly Figure 2 ;

[0037] Figure 17 Fig. 4 is a schematic diagram of the coordinate system established with the center of the rotation shaft of the driving wheel as the center;

[0038] Figure 18 Fig. 5 is a schematic diagram of the force measured by the force measuring rod during the grinding process.

[0039] Explanation of reference signs in the drawings:

[0040] 1-grinding frame, 2-driving wheel, 3-fixing bolt, 4-moving clamping plate, 5-tightening bolt, 6-mounting joint, 7-input driving shaft, 8-source driving wheel, 9-grinding paste storage box, 10-sealing cover, 11-force measuring rod, 12-rocker arm, 13-adjusting hole, 14-positioning bolt, 15-adjusting rod, 16-grinding paste flow guide pipe, 17-tightening shaft, 18-adjusting bearing, 19-tightening claw, 20-rotation shaft, 21-first bushing, 22-second bushing, 23-key, 24-knuckle bearing, 25-tightening claw adjusting screw. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0042] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications will also change accordingly.

[0043] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixing", and the like should be understood in a broad sense, for example, "fixing" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium, can be internal connection of two elements or interaction relationship between two elements, unless otherwise clearly limited. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0044] In addition, if the description of "first", "second" and the like is involved in the embodiments of the present application, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. For example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art. When the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application.

[0045] As a supplement to the background art, the assembly of the joint bearing and the product joint belongs to interference assembly. Generally, after the joint bearing is installed, the inner ring and the outer ring of the bearing will be deformed due to stress and other reasons, and the size will be correspondingly reduced, resulting in that the running clearance of the inner ring and the outer ring of the joint bearing is reduced, or even cannot rotate normally. Therefore, in order to solve this problem during assembly, a certain external force is generally applied to the inner ring and the outer ring of the bearing, and the joint bearing is properly ground with grinding paste. The essence of the grinding process of the joint bearing is to change the assembly clearance of the inner ring and the outer ring of the joint bearing by external force. During the grinding process, if the external force is too large or the grinding time is too long, the clearance between the inner ring and the outer ring of the bearing will not meet the requirements, which may cause the bearing to be scrapped and even affect the service life of the assembled product. It can be seen that insufficient grinding or exceeding the specified grinding amount will have certain influence on the bearing and the assembled product.

[0046] To solve the technical problem of controlling the grinding amount of the bearing, the embodiments of the present application provide a joint bearing 24 grinding device, as shown in Figures 1 to 4As shown, the device includes a grinding frame 1, a tensioning assembly, a power input assembly and a power output assembly. One side of the grinding frame 1 is a processing station, and a fixing assembly for clamping the knuckle bearing 24 is arranged on one side of the processing station. The power input assembly provides power input for the grinding knuckle bearing 24, and the power output assembly is in transmission connection with the power input assembly. The tensioning assembly connects the knuckle bearing 24 and the power output assembly, and the power output assembly makes the knuckle bearing 24 complete an elliptical motion to achieve the purpose of grinding the gap between the inner ring and the outer ring.

[0047] Specifically,

[0048] As shown in the figure, Figures 1 to 4 As shown, the fixing assembly includes a carrier and a clamping piece, the carrier is used to fix the knuckle bearing 24, and the clamping piece is used to fix the carrier on the grinding frame 1. Specifically, the carrier includes a U-shaped mounting connector 6, the mounting connector 6 is fixed to the grinding frame 1 through the clamping piece, one side of the U-shaped opening of the mounting connector 6 faces the center of the grinding frame 1, and the inner side of the mounting connector 6 is provided with a fixing plate integrally formed with three sides of the mounting connector 6, one end of the fixing plate towards the center of the grinding frame 1 is provided with a bearing hole, and the knuckle bearing 24 to be ground is assembled in the bearing hole for grinding. The clamping piece includes a fixed clamping plate and a movable clamping plate 4, the fixed clamping plate is integrally formed on one side end face of the grinding frame 1, and the movable clamping plate 4 is arranged opposite to the fixed clamping plate. The movable clamping plate 4 and the fixed clamping plate form a clamping interval, and the mounting connector 6 is placed in the clamping interval. The movable clamping plate 4 is installed on the grinding frame 1 through the fixing bolt 3, and the locking bolt is further arranged on the movable clamping plate 4 and is perpendicular to the mounting connector 6. The mounting connector 6 is fastened between the movable clamping plate 4 and the fixed clamping plate through the locking bolt.

[0049] When the knuckle bearing 24 to be ground is clamped, the knuckle bearing 24 is assembled in the bearing hole, and then the mounting connector 6 is placed between the movable clamping plate 4 and the fixed clamping plate, and the mounting connector 6 is fastened by adjusting the locking bolt, so that the knuckle bearing 24 is clamped on the grinding frame 1.

[0050] After the knuckle bearing 24 is clamped on the grinding frame 1, in order to achieve the grinding of the knuckle bearing 24, as shown in the figure, Figures 1 to 16 As shown, a power input assembly is arranged on one end of the grinding frame 1 relative to the processing station, and the power input assembly includes an input driving shaft 7, an input gear and a source driving wheel 8. A through hole is arranged on the grinding frame 1 for the input driving shaft 7 to extend from the outside to the inside of the grinding frame 1, a first bushing 21 is installed in the through hole, the input driving shaft 7 passes through the first bushing 21, and the two are rotationally connected through a bearing. The input gear is fixedly installed on one end of the input driving shaft 7 inside the grinding frame 1, and the input gear and the source driving wheel 8 are in meshing engagement with each other.

[0051] The power output assembly comprises the driving wheel 2, the adjusting rod 15, the force measuring rod 11 and the rocker arm 12. The driving wheel 2 and the driving wheel 8 are fixedly assembled on the same rotating shaft 20 through the key 23, and the driving wheel 2 rotates synchronously under the driving of the driving wheel 8. The second bushing 22 is assembled on the central position of the rotating shaft 20 through a bearing, and the second bushing 22 is fixedly installed on a support which is fixedly installed in the inner side of the grinding frame 1, so that the driving wheel 2 and the driving wheel 8 are installed and positioned. Meanwhile, the adjusting hole 13 is eccentrically arranged on the radial end surface of the driving wheel 2, the adjusting rod 15 is fixedly installed in the adjusting hole 13 through the positioning bolt 14, one end of the force measuring rod 11 is hingedly connected with the end of the adjusting rod 15 away from the adjusting hole 13, and the other end of the force measuring rod 11 is hingedly connected with the rocker arm 12. Of course, it is understood that, in order to realize the grinding of joint bearings 24 of different models and increase the practicability and universality of the device, as shown in Figure 14 the adjusting hole 13 can be arranged on the driving wheel 2 in a certain radial line, and the adjusting rod 15 is fixedly installed in the adjusting hole 13 at different positions, so that the grinding of joint bearings 24 of different models can be realized.

[0052] In the above, the tensioning assembly comprises the tensioning shaft 17 and the tensioning claw 19. The rocker arm 12 is integrally formed with the shaft sleeve at the end away from the force measuring rod 11, the rocker arm 12 is sleeved with the shaft sleeve at one end on the tensioning shaft 17, and the adjusting bearing 18 is assembled between the shaft sleeve and the tensioning shaft 17, so that the rocker arm 12 is rotationally connected with the tensioning shaft 17. The end of the tensioning shaft 17 away from the rocker arm 12 extends into the inner ring of the joint bearing 24, and at least three tensioning claws 19 are arranged on the end of the tensioning shaft 17 extending into the joint bearing 24 in the circumferential direction. Meanwhile, the tensioning claw adjusting screw is arranged on the end of the tensioning shaft 17 located at the end of the tensioning claw 19 and moves in the axial direction. The length of the tensioning claw 19 extending outwards can be adjusted through the tensioning claw adjusting screw 25, so that the tensioning claw 19 can be tensioned in the inner ring of different joint bearings 24. Of course, the adjustment of the tensioning claw 19 adjusting screw to the expansion and contraction of the tensioning claw 19 is the same as the adjustment principle of the traditional three-jaw chuck, which will not be described here.

[0053] From the above, after the assembly of the joint bearing is completed, the external power, which can be a motor or a pneumatic tool, is connected with the input driving shaft 7, and then the input driving shaft 7 and the gear meshing mode drive the driving wheel 8 to rotate. The driving wheel 8 drives the driving wheel 2 to rotate through the rotating shaft 20 and the key 23. The driving wheel 2 drives the force measuring rod 11, the rocker arm 12 and the adjusting rod 15 to move through the adjusting hole 13 and the positioning bolt 14, so that the rocker arm 12 makes an elliptical motion in space, and the tensioning shaft 17 makes an elliptical motion in space through the adjusting bearing 18, and finally the joint bearing 24 makes an elliptical motion in space, so that the inner and outer rings of the joint bearing are ground.

[0054] As one of the inventive points of this application, to illustrate that the motion of the joint bearing is elliptical motion, the following detailed analysis is provided:

[0055] Let the angular velocity of the input drive shaft 7 be ω0, and the gear ratio between the input drive shaft 7 and the source drive wheel 8 be i. 78 The distances AC between the shaft of each adjusting hole 13 on the drive wheel 2 and the shaft of the drive wheel 2 are r1, r2, r3...r1, r2, r3...r2, r3...r3, r4, r5, r6, r7, r8, r9, r1, r2, r3, r4 ...1, r2, r3, r4, r6, r i (i = 1, 2, ..., N). The distance CB between the rotating shaft of the positioning bolt 14 and the rotating shaft of the tensioning shaft 7 is l, and the distance AB between the rotating shaft of the driving wheel 2 and the rotating shaft of the tensioning shaft 17 is k; the outer ring diameter EB of the adjusting bearing 18 is y1, and a plane coordinate system is established with the center point A of the rotating shaft of the driving wheel 2 as the origin. The positive direction of the X-axis is the direction indicated by AB, and the positive direction of the Y-axis is perpendicular to the X-axis. Figure 17 As shown:

[0056] Given that the angular velocity of the drive shaft 7 is ω0, and the gear ratio between the input drive shaft 7 and the source drive wheel 8 is i... 78 Then the angular velocity of the driving wheel 2 is ω=ω0×i 78 The angle Φ between lines CA and BA is ω0 × i 78 ×t (t is time).

[0057] Then line segment AF = r i ×cos(ω0×i 78 ×t), line segment CF=r i ×sin(ω0×i 78 ×t), line segment FB= AB- AF =Kr i ×cos(ω0×i 78 ×t); because available

[0058]

[0059] We can obtain AG = AB-GB =K-{[Kr i ×cos(ω0×i 78 ×t)]×y1} / L, that is, the x-coordinate of point E is XE=K-{[Kr i ×cos(ω0×i 78 ×t)]×y1} / L.

[0060] Similarly, That is, the ordinate of point E is YE = r i ×sin(ω0×i 78 ×t)×y1 / L.

[0061] The motion parameter equation of point E is:

[0062]

[0063] wherein ω0, K, L, i 78 , y1, r i are physical characteristic parameters, and the conversion into a general equation is:

[0064]

[0065] As is apparent from equation (2), point E is an elliptical motion trajectory, and the E point is the motion trajectory of the rocker arm 12, and the tensioning shaft 17 moves synchronously with the rocker arm, so the tensioning shaft 17 moves elliptically in space, and further causes the spherical plain bearing 24 to move elliptically in space.

[0066] At the same time, during the grinding of the spherical plain bearing 24, the force bar 11 will be subjected to periodic tension and pressure according to the friction between the inner and outer rings of the spherical plain bearing 24; according to Hooke's law F=k x Δx, when the friction between the inner and outer rings of the spherical plain bearing 24 is large, the tension or pressure value of the force bar 11 is large, and when the friction between the inner and outer rings of the spherical plain bearing 24 is small, the tension or pressure value of the force bar 11 is small.

[0067] During the grinding of the spherical plain bearing 24, since the spherical plain bearing 24 moves elliptically, the friction between the inner and outer rings thereof changes periodically, and the corresponding tension or pressure value of the force bar 11 also changes periodically, as shown in Figure 18 The force change measured by the force bar during the grinding process is shown in FIG. 4, and thus from Figure 18 it can be seen that only the required force during the grinding process needs to be measured by the force bar 11, and by observing the measured force value data, when the tension or pressure of the force bar 11 tends to be stable, the grinding process of the spherical plain bearing has met the requirements, so whether the force measured by the force bar tends to be stable can be used to judge whether the spherical plain bearing has been ground to meet the requirements, so as to accurately judge whether the grinding of the inner and outer rings of the spherical plain bearing is in place.

[0068] It can be understood that the force bar 11 is provided with a tension sensor at the end connected with the rocker arm 12, and the tension sensor is connected with the rocker arm 12 and can measure the received force.

[0069] In a more preferred embodiment, as shown in Figures 1 to 9As shown, the top side of the grinding frame 1 near the processing station side is also provided with a grinding paste storage tank 9, the top of which is provided with a filling opening, and a sealing cover 10 is arranged at the filling opening. The sealing cover 10 is opened to fill the grinding paste storage tank 9 with grinding paste. The bottom of the grinding paste storage tank 9 is provided with a grinding paste flow guide pipe 16 facing the spherical plain bearing 24. During the grinding process, the grinding paste is sprayed between the inner ring and the outer ring of the spherical plain bearing 24.

[0070] From the above, it can be seen that the spherical plain bearing 24 grinding device and the grinding and detection method provided by the embodiments of the present application are:

[0071] First, the spherical plain bearing 24 to be ground is assembled on the mounting joint 6, and then the mounting joint 6 is placed between the fixed clamping plate and the movable clamping plate 4, and the mounting joint 6 is fastened to the grinding frame 1 by the fastening bolt 5.

[0072] Next, the tensioning shaft 17 is inserted into the inner ring of the spherical plain bearing 24, and the tensioning claw 19 is adjusted and fixed with the inner ring of the spherical plain bearing 24 by adjusting the tensioning claw adjusting screw 25.

[0073] Then, the operator drives the input driving shaft 7 to rotate by using a pneumatic tool (or an electric motor) connected to the input driving shaft 7. Through the input driving shaft 7 and the gear meshing mode, the source driving wheel 8 is driven to rotate. The source driving wheel 8 drives the driving wheel 2 to rotate through the rotating shaft 20 and the key 23. The driving wheel 2 drives the force measuring rod 11, the rocker arm 12 and the adjusting rod 15 to move through the adjusting hole 13 and the positioning screw 14, so that the rocker arm 12 makes an elliptical motion in space, and the tensioning shaft 17 makes an elliptical motion in space through the adjusting bearing 18, and finally the spherical plain bearing 24 makes an elliptical motion in space, so that the inner and outer rings of the spherical plain bearing 24 are ground.

[0074] During the grinding process, by observing the change of the force value measured by the force measuring rod 11, when the measured force value gradually tends to be stable without obvious change, it means that the grinding of the inner and outer rings of the spherical plain bearing 24 is in place. At this time, the spherical plain bearing 24 can be disassembled for the next round of grinding.

[0075] In summary, the joint bearing grinding device provided by the embodiment of the application has the following advantages. The joint bearing to be ground is fixed to the grinding frame by the fixing assembly, and the joint bearing is connected to the power output assembly and the joint bearing by the tensioning assembly. The joint bearing is driven to perform elliptical motion by the power input assembly through the power output assembly, so that the inner ring and the outer ring of the joint bearing have relative motion to realize mutual grinding. During the grinding process, the inner and outer rings of the joint bearing are rubbed due to motion, so that the force bar is subjected to periodic tension and pressure during the grinding process. When the tension or pressure of the force bar tends to be stable, the grinding process of the joint bearing has met the requirements. Therefore, the joint bearing grinding device provided by the application can automatically grind the joint bearing and accurately and independently determine whether the grinding meets the requirements.

[0076] The above merely describes the preferred embodiments of the application and is not intended to limit the application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the application shall be included in the protection scope of the application.

Claims

1. A knuckle bearing grinding device characterized by, The application relates to a grinding device for knuckle bearings. The grinding device comprises a grinding frame, a fixing assembly arranged on the grinding frame for clamping the knuckle bearing, a tensioning assembly which is tensioned to the inner ring of the knuckle bearing, a power output assembly which comprises a driving wheel, an adjusting rod, a force measuring rod and a rocker arm, the force measuring rod is eccentrically arranged on the driving wheel, the rocker arm is rotationally connected with the tensioning assembly, and the two ends of the force measuring rod are respectively hingedly connected with the adjusting rod and the rocker arm, and a power input assembly which is transmissionally connected with the driving wheel to drive the tensioning assembly to complete an elliptical motion with the knuckle bearing through a crank linkage mechanism composed of the driving wheel, the adjusting rod, the force measuring rod and the rocker arm, and to spray grinding oil paste to the inner ring and the outer ring of the knuckle bearing during the elliptical motion of the knuckle bearing, and the friction between the inner ring and the outer ring of the knuckle bearing changes periodically during the elliptical motion of the knuckle bearing, and the tension or pressure value of the force measuring rod changes periodically, so that whether the knuckle bearing is ground to the required standard can be determined by observing the force data of the force measuring rod during the grinding process, and whether the grinding of the inner ring and the outer ring of the knuckle bearing is in place can be determined. The tensioning assembly comprises a tensioning shaft which is arranged in the inner ring of the knuckle bearing and provided with a radial tensioning claw, and the tensioning shaft is provided with a tensioning claw adjusting screw which is arranged at one end of the tensioning claw and moves along the axial direction. The tensioning shaft is connected with the rocker arm through an adjusting bearing at one end of the tensioning shaft which is located outside the inner ring of the knuckle bearing. The power input assembly comprises an input driving shaft, an input gear and a source driving wheel, the input gear is arranged on the input driving shaft, the input gear is engaged with the source driving wheel, and the source driving wheel is coaxially arranged with the driving wheel.

2. The articulating bearing grinding apparatus of claim 1, wherein, The driving wheel is provided with a plurality of adjusting holes along a certain radial straight line, and the adjusting rod can be connected in different adjusting holes to grind different types of knuckle bearings.

3. The articulating bearing grinding apparatus of claim 2, wherein, The fixing assembly comprises a carrier and a clamping piece, the carrier is used for fixing the knuckle bearing, and the clamping piece is used for fixing the carrier on the grinding frame.

4. The articulating bearing grinding apparatus of claim 1, wherein, The carrier comprises a U-shaped mounting connector and a fixing plate which is integrally formed in the mounting connector, and the fixing plate is provided with a bearing hole for mounting the knuckle bearing.

5. The articulating bearing polishing apparatus of claim 1, wherein, The clamping piece comprises a fixed clamping plate and a movable clamping plate, the fixed clamping plate is fixed on the grinding frame, the movable clamping plate is arranged opposite to the movable clamping plate and is mounted on the grinding frame, the mounting connector is arranged between the movable clamping plate and the fixed clamping plate, and the movable clamping plate is provided with locking bolts for fastening the mounting connector.

6. The articulating bearing polishing apparatus of claim 1, wherein, The grinding frame is provided with a grinding oil paste storage tank, and the grinding oil paste storage tank is provided with a grinding oil paste flow guide pipe which faces the knuckle bearing.

7. The articulating bearing grinding apparatus of claim 6, wherein, The grinding oil paste storage tank is provided with a grinding oil paste filling port, and the grinding oil paste filling port is provided with a sealing cover.

8. The articulating bearing grinding apparatus of claim 7, wherein, ​ 9. The articulating bearing grinder of claim 1, wherein, ​ 10. The articulating bearing grinding apparatus of claim 9, wherein, ​

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