Automatic assembling machine and automatic assembling method for automobile rearview mirror bearing support

Abstract

The application relates to the technical field of automatic assembly, in particular to an automatic assembly machine and an automatic assembly method for a bearing support of an automobile rearview mirror, which comprises a machine table, a support frame fixed on the machine table, and a fixing plate fixed on the support frame; a feeding assembly arranged on the machine table and used for conveying the support and the bearing to a required assembly position; a lifting mechanism arranged on the fixing plate and comprising a receiving plate, a clamping assembly arranged on the receiving plate, and the lifting mechanism being capable of performing an assembly action on the bearing through the clamping assembly after the clamping assembly clamps the bearing; and a rotation testing mechanism arranged on the lifting mechanism and capable of driving the bearing to rotate through the clamping assembly, wherein if the bearing is assembled in place, the resistance of the bearing is small when the bearing rotates, and if the bearing is assembled with deviation, the resistance of the bearing is large when the bearing rotates, so that the effect of automatically testing the bearing after assembly can be achieved.

Description

Technical Field

[0001] This invention relates to the field of automatic assembly technology, specifically to an automatic assembly machine and method for automotive rearview mirror bearing supports. Background Technology

[0002] The rearview mirror bearing bracket is crucial for ensuring that the rearview mirror can be manually or electrically adjusted. At the same time, it must also have a certain degree of waterproof and dustproof effect to prevent rainwater from entering the interior of the car, and it must also have a certain strength to withstand vibrations and wind resistance during driving.

[0003] When assembling the bearings and supports of a car rearview mirror, precision fitting and special tools are usually required to ensure assembly quality.

[0004] During assembly, mechanical pressing is usually used. When the support and bearing are in the required assembly position, a pneumatic or hydraulic press can be used to apply downward pressure to the bearing to achieve the assembly between the bearing and the support. However, existing assembly usually uses a turntable feeding method. When the turntable rotates, the bearing may shift off from the support due to inertia, which may lead to the bearing or support being compressed and deformed.

[0005] To address this, the bearing can be positioned before press-fitting. Centering can prevent misalignment between the bearing and the support, which could lead to improper installation. However, the bearing and support may have manufacturing tolerances. After assembly, existing equipment requires transferring the bearing support to the corresponding testing equipment to check the assembly results. It is not possible to test the bearing support directly and quickly after assembly and take corresponding actions, which complicates the assembly process and makes it prone to missed detections. Summary of the Invention

[0006] The purpose of this invention is to provide an automatic assembly machine and method for automotive rearview mirror bearing supports, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] Automatic assembly machine for automotive rearview mirror bearing supports, including:

[0009] The machine base, and the support frame fixed on the machine base, with a fixing plate fixed on the support frame;

[0010] Also includes:

[0011] The feeding assembly, located on the machine platform, is used to transport the supports and bearings to the required assembly position;

[0012] A lifting mechanism is provided on the fixed plate, including a receiving plate. A clamping assembly is provided on the receiving plate. The lifting mechanism can perform an assembly action on the bearing after the clamping assembly clamps the bearing.

[0013] A rotating testing mechanism is mounted on the lifting mechanism. The rotating testing mechanism can drive the bearing to rotate through the clamping assembly to perform a resistance test on the bearing.

[0014] As a further aspect of the present invention: the feeding assembly includes a rotating disk rotatably mounted on the machine platform, and a plurality of loading platforms are fixed on the rotating disk in a circumferentially equidistant arrangement, with a placement groove formed at the upper end of the loading platform.

[0015] As a further embodiment of the present invention: the lifting mechanism includes a first cylinder fixed on the fixed plate, and a support plate is fixed to the telescopic end of the first cylinder.

[0016] As a further embodiment of the present invention: the lifting mechanism further includes a transmission rod rotatably mounted on the support plate, a rotating plate rotatably mounted on the transmission rod, and a guide column fixedly connected to the receiving plate on the rotating plate.

[0017] As a further embodiment of the present invention: the clamping assembly includes a sliding groove formed on the receiving plate and arranged symmetrically, a sliding block is slidably installed in the sliding groove, a card plate is fixed to the side wall of the sliding block, and an extension plate is fixed to the card plate.

[0018] As a further embodiment of the present invention: the clamping assembly further includes a second cylinder fixed on the receiving plate, and the telescopic end of the second cylinder is fixedly connected to a push rod that is fixedly connected to the sliding block.

[0019] As a further embodiment of the present invention: the rotating testing mechanism includes a motor fixed on the support plate, the output shaft of the motor being connected to the transmission rod, a movable rod sliding axially inside the transmission rod, and a rotating sleeve fixedly connected to the receiving plate being sleeved on the movable rod.

[0020] As a further embodiment of the present invention: the rotating testing mechanism further includes a spiral groove formed on the outer circumference of the transmission rod, the transmission rod having an axially sliding movable plate slidably connected to the guide post, and a limiting post fixedly connected to the movable rod through the spiral groove on the inner wall of the movable plate.

[0021] As a further embodiment of the present invention: a bracket is fixed on the fixing plate, a storage tank is fixed on the bracket, a feeding pump is fixed on the top of the storage tank, a conveying pipe is connected to the feeding pump, and a nozzle is connected to the end of the conveying pipe.

[0022] An automatic assembly method for automotive rearview mirror bearing supports includes the following steps:

[0023] Step 1: Place the supports and bearings to be assembled on the feeding assembly, and control the supports and bearings to move to the required assembly position under the action of the feeding assembly;

[0024] Step 2: The lifting mechanism controls the movement of the receiving plate, causing the clamping component to move to the position where it mates with the bearing and clamps the bearing;

[0025] Step 3: After clamping is completed, the lifting mechanism applies downward pressure to the bearing through the clamping assembly to assemble the bearing and the support by press fitting.

[0026] Step 4: After assembly, the rotating testing mechanism controls the bearing rotation through the clamping components and performs a resistance test on the bearing based on the rotational resistance.

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows: This application can test whether the bearing is installed in place by measuring the change in resistance encountered when the bearing rotates. Specifically, the support and bearing are moved to the required pressing position, the lifting mechanism operates, and the clamping assembly is moved to the position to cooperate with the bearing through the receiving plate. Under the action of the clamping assembly, the bearing is clamped. After clamping, the lifting mechanism provides downward pressure to the bearing through the clamping assembly to press the bearing into the support. The rotation testing mechanism operates and drives the bearing to rotate through the clamping assembly. If the bearing is assembled in place, the bearing generates less resistance when rotating, and the rotation testing mechanism can smoothly drive the bearing to rotate. If there is a deviation in the bearing assembly, causing the bearing to jam or lock when rotating, the bearing rotation resistance is large, or it cannot rotate. The rotation testing mechanism will then activate. In this way, the effect of quickly testing the assembly result after assembly can be achieved by observing the movement state of the rotation testing mechanism.

[0028] Because the two clamping plates are arranged in a triangular concave and inclined shape on the side that is close to each other, the two clamping plates are controlled to move towards each other by the second cylinder. This can clamp the bearing when the clamping plate abuts against the outer wall of the bearing circumference, and can center the bearing during the clamping process. This ensures that the bearing and the support are always in a mutually cooperating state, and avoids the problem of displacement deviation between the bearing and the support due to inertia when the rotating disk controls the movement of the platform.

[0029] During bearing rotation testing, the movable plate can maintain its position or move along the guide column towards the rotating plate depending on whether the bearing is in a normal free-rotation state, a stuck resistance rotation state, or a locked state during assembly. This allows for rapid judgment of the bearing and support assembly status. Simultaneously, the sensor can control the pumping of lubricating fluid based on the positional changes of the movable plate. When the bearing is in a slightly stuck state, the combined effect of rotational force and lubricating fluid can further guide the bearing assembly. In this way, the assembly status test can be performed simultaneously after assembly, simplifying the entire assembly testing process and improving the assembly efficiency of the bearing support. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of an embodiment of an automatic assembly machine for automotive rearview mirror bearing supports.

[0031] Figure 2 This is a structural schematic diagram of another angle in an embodiment of an automatic assembly machine for automotive rearview mirror bearing supports.

[0032] Figure 3 This is a schematic diagram showing the connection relationship between the feeding component, part of the lifting mechanism, and the clamping component in an embodiment of an automatic assembly machine for automotive rearview mirror bearing supports.

[0033] Figure 4 for Figure 3 Another structural diagram from a different angle.

[0034] Figure 5 This is a schematic diagram of the feeding component in an embodiment of an automatic assembly machine for automotive rearview mirror bearing supports.

[0035] Figure 6 This is a schematic diagram of the lifting mechanism, part of the rotation testing mechanism, and the clamping assembly in an embodiment of an automatic assembly machine for automotive rearview mirror bearing supports.

[0036] Figure 7 for Figure 6 A magnified schematic diagram of the structure at point A in the middle.

[0037] Figure 8 This is a schematic diagram showing the connection relationship between some lifting mechanisms, some rotating testing mechanisms, and clamping components in an embodiment of an automatic assembly machine for automotive rearview mirror bearing supports.

[0038] Figure 9 This is an exploded view of some clamping components in an embodiment of an automatic assembly machine for automotive rearview mirror bearing supports.

[0039] Figure 10 This is an exploded structural diagram of the rotating test mechanism in an embodiment of an automatic assembly machine for automotive rearview mirror bearing supports.

[0040] In the diagram: 1. Machine base; 2. Rotary disc; 3. Carrying platform; 301. Placement slot; 4. Support frame; 5. Fixing plate; 6. First cylinder; 7. Support plate; 8. Motor; 9. Transmission rod; 901. Spiral groove; 10. Movable rod; 11. Rotating sleeve; 12. Receiving plate; 1201. Slide groove; 13. Sliding block; 14. Clamping plate; 1401. Extension plate; 15. Second cylinder; 16. Push rod; 17. Rotating plate; 18. Sensor; 19. Guide column; 20. Movable plate; 2001. Limiting column; 21. Spring; 22. Bracket; 23. Storage tank; 24. Feed pump; 25. Conveying pipe; 26. Nozzle. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] Furthermore, elements in this invention are referred to as being "fixed to" or "set on" another element, which may be directly on the other element or may also include an intervening element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or may also include an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0043] Please see Figures 1-10 In this embodiment of the invention, the automatic assembly machine for automotive rearview mirror bearing supports includes:

[0044] Machine base 1, and support frame 4 fixed on machine base 1, with a fixing plate 5 fixed on support frame 4;

[0045] Also includes:

[0046] The feeding assembly, mounted on the machine base 1, is used to transport the support and bearing to the required assembly position;

[0047] The lifting mechanism is mounted on the fixed plate 5 and includes a receiving plate 12. The receiving plate 12 is provided with a clamping assembly. The lifting mechanism can perform an assembly action on the bearing after the clamping assembly clamps the bearing.

[0048] A rotating testing mechanism is mounted on the lifting mechanism. The rotating testing mechanism can drive the bearing to rotate through the clamping assembly to perform a resistance test on the bearing.

[0049] Specifically, when assembling the bearings and supports of a car rearview mirror, mechanical pressing can be used. When the supports and bearings are placed sequentially on the feeding assembly, the feeding assembly controls the movement of the supports and bearings to the required pressing position. At this time, the lifting mechanism operates, and through the receiving plate 12, it drives the clamping assembly to move to the position where it mates with the bearing. Under the action of the clamping assembly, the bearing is clamped. After clamping, the lifting mechanism provides downward pressure to the bearing through the clamping assembly to press the bearing into the support. After assembly, the rotation testing mechanism operates, driving the bearing to rotate through the clamping assembly. If the bearing is properly assembled, the resistance generated during rotation is small, and the rotation testing mechanism can smoothly drive the bearing to rotate. If there is a deviation in the bearing assembly, causing the bearing to jam or lock during rotation, the bearing will experience greater rotational resistance or be unable to rotate. In this case, the rotation testing mechanism will activate. Thus, by observing the movement of the rotation testing mechanism, the assembly results can be quickly tested after assembly.

[0050] Please see Figures 1-5 The feeding assembly includes a rotating disk 2 rotatably mounted on the machine base 1. Multiple loading platforms 3 are fixed on the rotating disk 2 and are distributed equidistantly in a circle. A placement groove 301 is formed on the upper end of each loading platform 3.

[0051] In detail, the placement groove 301 cooperates with the support. When it is necessary to assemble the support and the bearing, the support can be placed in the placement groove 301 first, and the bearing to be assembled can be placed above the required engagement position of the support. At this time, mechanical pressing can be performed to complete the assembly. Under the action of the rotating disk 2, the platform 3 is controlled to move to guide the support and the bearing to the required assembly position. The above steps are repeated to achieve the purpose of intermittent feeding and assembly.

[0052] Please see Figures 1-4 , Figure 6 , Figure 8 The lifting mechanism includes a first cylinder 6 fixed on the fixed plate 5, and a support plate 7 is fixed to the telescopic end of the first cylinder 6. The lifting mechanism also includes a transmission rod 9 rotatably mounted on the support plate 7, a rotating plate 17 rotatably mounted on the transmission rod 9, and a guide column 19 fixedly connected to the receiving plate 12 on the rotating plate 17.

[0053] Please see Figures 1-4 , Figure 6 , Figure 8 , Figure 9The clamping assembly includes a sliding groove 1201 formed on the receiving plate 12 and arranged symmetrically. A sliding block 13 is slidably installed in the sliding groove 1201. A clamping plate 14 is fixed to the side wall of the sliding block 13. An extension plate 1401 is fixed on the clamping plate 14. The clamping assembly also includes a second cylinder 15 fixed on the receiving plate 12. The telescopic end of the second cylinder 15 is fixed with a push rod 16 fixedly connected to the sliding block 13.

[0054] It should be noted that the second cylinder 15 is a double-headed cylinder, which can synchronously control the movement of two symmetrically arranged sliding blocks 13. In the initial state, under the action of the second cylinder 15, the push rod 16 controls the sliding block 13 to be located at the end of the stroke on one side of the slide groove 1201, so that the distance between the two sliding blocks 13 is maximized, and the two clamping plates 14 are located at the end of the stroke on the side away from each other. Under the action of the first cylinder 6, the support plate 7 is located at the end of the stroke away from the direction of the rotating disk 2, so that the distance between the clamping plate 14 and the platform 3 is maximized.

[0055] When the support and bearing need to be assembled together, the first cylinder 6 pushes the support plate 7 to move away from the fixed plate 5, thereby driving the transmission rod 9 to move. The transmission rod 9 will drive the guide column 19 to move through the rotating plate 17, so as to control the receiving plate 12 to move towards the platform 3. Under the action of the receiving plate 12, the sliding block 13 controls the movement of the clamping plate 14. When the clamping plate 14 moves to the position of engaging with the bearing and the extension plate 1401 is above the bearing, the second cylinder 15 works and controls the two sliding blocks 13 to slide along the length of the slide groove 1201 and move towards each other, thereby driving the clamping plate 14 to move. When the inclined surface of the clamping plate 14 abuts against the outer circumference of the bearing, the bearing is in a clamped state and in a centrally positioned state, and the extension plate 1401 is in contact with the upper end surface of the bearing.

[0056] At this time, the first cylinder 6 continues to work, thereby providing downward pressure on the bearing towards the support through the clamping plate 14 and the extension plate 1401. When the downward pressure reaches a certain value, the bearing will enter the groove formed on the support, thereby completing the mutual assembly of the bearing and the support. After the assembly and testing are completed, the second cylinder 15 controls the sliding block 13 to reset, so that the clamping plate 14 separates from the bearing. The first cylinder 6 controls the support plate 7 to reset. Under the action of the rotating disk 2, the next stage 3 is controlled to move to the assembly position. The above steps are repeated to realize the continuous assembly of the support and the bearing.

[0057] Preferably, since the two clamping plates 14 are arranged in a triangular concave and inclined shape on the side that is close to each other, the two clamping plates 14 are controlled to move towards each other by the second cylinder 15. This can clamp the bearing when the clamping plate 14 abuts against the outer wall of the bearing circumference, and can center the bearing during the clamping process. This ensures that the bearing and the support are always in a mutually cooperating state, and avoids the problem of displacement deviation between the bearing and the support due to inertia when the rotating disk 2 controls the movement of the platform 3.

[0058] Please see Figures 6-8 , Figure 10 The rotating testing mechanism includes a motor 8 fixed on the support plate 7. The output shaft of the motor 8 is connected to the transmission rod 9. A movable rod 10 slides axially inside the transmission rod 9. A rotating sleeve 11 fixedly connected to the receiving plate 12 is sleeved on the movable rod 10. The rotating testing mechanism also includes a spiral groove 901 formed on the outer circumference of the transmission rod 9. A movable plate 20 slides axially on the transmission rod 9 and is slidably connected to the guide post 19. A limiting post 2001 that passes through the spiral groove 901 and is fixedly connected to the movable rod 10 is fixed on the inner wall of the movable plate 20.

[0059] Please see Figures 1-4 , Figure 6 A bracket 22 is fixed on the fixed plate 5, a storage tank 23 is fixed on the bracket 22, a feeding pump 24 is fixed on the top of the storage tank 23, a conveying pipe 25 is connected to the feeding pump 24, and a nozzle 26 is connected to the end of the conveying pipe 25.

[0060] Furthermore, a key is fixed to the outer circumference of the movable rod 10, and a keyway is formed on the inner wall of the rotating sleeve 11 to cooperate with the key. With the cooperation of the key and the keyway, the movable rod 10 and the rotating sleeve 11 can rotate synchronously. Since a guide post 19 is fixed between the rotating plate 17 and the receiving plate 12, the distance between the rotating sleeve 11 and the transmission rod 9 will not change under the action of the guide post 19. Therefore, when the movable rod 10 slides along the axial direction of the transmission rod 9, it will not affect the position of the rotating sleeve 11.

[0061] In the initial state, the distance between the movable plate 20 and the rotating plate 17 is at its maximum, so that the limiting post 2001 is located at the end of the stroke of the spiral groove 901 on the side away from the rotating plate 17. Under the action of the limiting post 2001, the size of the movable rod 10 and the transmission rod 9 when they fit together is the minimum, and the size of the movable rod 10 and the rotating sleeve 11 when they fit together is the maximum. The elongation of the spring 21 in its natural state is greater than the maximum distance between the movable plate 20 and the rotating plate 17. Therefore, the spring 21 is in a pre-compressed state and always provides the movable plate 20 with a thrust in the direction away from the rotating plate 17. In this state, through the cooperation of the limiting post 2001 and the spiral groove 901, the transmission rod 9 has a tendency to rotate. The direction of this rotation tendency is defined as forward rotation.

[0062] When the clamping plate 14 holds the bearing and the extension plate 1401 is in contact with the upper end of the bearing, the first cylinder 6 controls the support plate 7 to move toward the rotating disk 2. Under the action of the guide column 19, the distance between the receiving plate 12 and the rotating plate 17 will not change. Therefore, the position of the movable rod 10 in the rotating sleeve 11 will not change. The clamping plate 14 and the extension plate 1401 will provide downward pressure to the bearing to assemble the bearing and the support. During this process, the nozzle 26 moves with the receiving plate 12 to ensure that the nozzle 26 is always in the matching position of the connection point between the bearing and the clamp during the assembly and testing process.

[0063] If the machining accuracy of the support or bearing is not high after assembly, or if the position of the support in the placement groove 301 is offset, or if the bearing is subjected to offset force, the bearing and support will not be installed properly, resulting in jamming or locking. Therefore, the bearing needs to be tested after assembly.

[0064] A sensor 18 is fixed on the rotating plate 17, which can detect the position change of the movable plate 20. Under the action of the motor 8, the transmission rod 9 is reversed. If the bearing and the support are assembled in place, the resistance generated when the bearing rotates is small and it can rotate freely. Under the action of the spring 21, the movable plate 20 is controlled to rotate synchronously with the transmission rod 9 through the limit post 2001 and the spiral groove 901. The position of the movable plate 20 on the guide post 19 will not change. Thus, through the cooperation of the key and the keyway, the rotating sleeve 11 is controlled to rotate synchronously, so as to drive the bearing to rotate freely through the clamping plate 14. No other operation is required during the detection process. After the detection is completed, the clamping plate 14 is controlled to release the bearing so that the next support and bearing can be assembled.

[0065] If the bearing and support are not properly assembled, the bearing will jam or lock during rotation, resulting in high rotational resistance or even failure to rotate. If only the bearing is jammed, the rotational force provided by the spring 21 to the movable rod 10 via the limiting post 2001 and the helical groove 901 when the transmission rod 9 rotates cannot overcome the jamming resistance of the bearing. This causes relative rotation between the transmission rod 9 and the movable rod 10. The transmission rod 9 will drive the helical groove 901 to move, causing the limiting post 2001 to slide relative to the transmission rod 9 along the helical groove 901. This allows the movable plate 20 to slide axially along the guide post 19 and move towards the rotating plate 17. Under the action of the movable plate 20, the spring 21 is compressed. When the compression of the spring 21 reaches a certain value, the limiting post 2001 and the helical groove 901 provide the movable rod 10 with the rotational force... The rotational force of 0 will overcome the jamming resistance of the bearing, thereby driving the bearing to rotate. If the jamming is not serious, the rotational force can provide a certain correction effect to the bearing and the support. For example, slight jamming caused by tolerance fit or assembly tilt can control the bearing to return to the correct position. At the same time, under the action of sensor 18, the feed pump 24 can be controlled to work according to the displacement of the movable plate 20. Under the action of feed pump 24, the lubricant in storage tank 23 is transported to nozzle 26 through delivery pipe 25, and the lubricant is sprayed onto the contact surface between the bearing and the support through nozzle 26. In this way, through the dual action of rotational force and lubricant, the bearing in a slightly jammed state can be guided to the correct assembly position, which not only achieves the purpose of detection, but also avoids the need for manual adjustment of the bearing state afterward.

[0066] If the jamming is severe, it indicates that the movement stroke of the movable plate 20 has increased. If the jamming resistance remains high after the lubricant is sprayed, rework is required. Similarly, if the bearing and the support are locked, the movement stroke of the movable plate 20 is at its maximum. When the spring 21 reaches its maximum compression, the bearing cannot rotate with the transmission rod 9. In this case, the situation can be recorded, and after the jamming plate 14 separates from the bearing, the bearing and the support are controlled to undergo rework. When the sensor 18 detects the displacement of the movable plate 20 in this state, it will not control the feed pump 24 to work.

[0067] Preferably, during the rotation test of the bearing, the movable plate 20 can maintain its position or move along the guide column 19 toward the rotating plate 17 according to whether the bearing is in a normal free rotation state, a stuck resistance rotation state, or a locked non-rotation state during assembly. This achieves the effect of quickly judging the assembly state of the bearing and the support. At the same time, the sensor 18 can also control the pumping of lubricating fluid according to the position change of the movable plate 20. This achieves the effect of further guiding the assembly of the bearing through the dual cooperation of rotational force and lubricating fluid when the bearing is in a slightly stuck state. In this way, the purpose of performing the assembly state test can be achieved simultaneously after assembly, thereby simplifying the entire assembly test process and increasing the assembly efficiency of the bearing support.

[0068] An automatic assembly method for automotive rearview mirror bearing supports includes the following steps:

[0069] Step 1: Place the supports and bearings to be assembled on the feeding assembly, and control the supports and bearings to move to the required assembly position under the action of the feeding assembly;

[0070] Step 2: The lifting mechanism controls the movement of the receiving plate 12, so that the clamping component moves to the position that mates with the bearing and clamps the bearing;

[0071] Step 3: After clamping is completed, the lifting mechanism applies downward pressure to the bearing through the clamping assembly to assemble the bearing and the support by press fitting.

[0072] Step 4: After assembly, the rotating testing mechanism controls the bearing rotation through the clamping components and performs a resistance test on the bearing based on the rotational resistance.

[0073] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0074] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. Automatic assembly machine for automotive rearview mirror bearing supports, including: The machine base, and the support frame fixed on the machine base, with a fixing plate fixed on the support frame; Its characteristic is that it further includes: The feeding assembly, located on the machine platform, is used to transport the supports and bearings to the required assembly position; A lifting mechanism is provided on the fixed plate, including a receiving plate. A clamping assembly is provided on the receiving plate. The lifting mechanism can perform an assembly action on the bearing after the clamping assembly clamps the bearing. A rotating testing mechanism is mounted on the lifting mechanism. The rotating testing mechanism can drive the bearing to rotate through the clamping assembly in order to perform a resistance test on the bearing. The lifting mechanism includes a first cylinder fixed on the fixed plate, and a support plate is fixed to the telescopic end of the first cylinder. The lifting mechanism further includes a transmission rod rotatably mounted on the support plate, a rotating plate rotatably mounted on the transmission rod, and a guide column fixedly connected to the receiving plate on the rotating plate; The rotating testing mechanism includes a motor fixed on the support plate, the output shaft of the motor being connected to the transmission rod, a movable rod sliding axially inside the transmission rod, and a rotating sleeve fixedly connected to the receiving plate being sleeved on the movable rod; The rotating testing mechanism further includes a spiral groove formed on the outer circumference of the transmission rod, and the transmission rod has an axially sliding movable plate that is slidably connected to the guide post. The inner wall of the movable plate is fixed with a limiting post that passes through the spiral groove and is fixedly connected to the movable rod.

2. The automatic assembling machine for the bearing support of the automobile rearview mirror shaft according to claim 1, characterized in that, The feeding assembly includes a rotating disk rotatably mounted on the machine platform, and a plurality of loading platforms are fixed on the rotating disk in a circumferentially equidistant arrangement, with a placement groove formed at the upper end of each loading platform.

3. The automatic assembly machine for automotive rearview mirror bearing supports according to claim 1, characterized in that, The clamping assembly includes symmetrically arranged sliding grooves formed on the receiving plate, a sliding block slidably installed in the sliding groove, a clamping plate fixed to the side wall of the sliding block, and an extension plate fixed to the clamping plate.

4. The automatic assembly machine for automotive rearview mirror bearing supports according to claim 3, characterized in that, The clamping assembly also includes a second cylinder fixed to the receiving plate, and the telescopic end of the second cylinder is fixed with a push rod that is fixedly connected to the sliding block.

5. The automatic assembly machine for automotive rearview mirror bearing supports according to claim 1, characterized in that, A bracket is fixed on the fixed plate, a storage tank is fixed on the bracket, a feeding pump is fixed on the top of the storage tank, a conveying pipe is connected to the feeding pump, and a nozzle is connected to the end of the conveying pipe.

6. An automatic assembly method for automotive rearview mirror bearing supports, employing the automatic assembly machine for automotive rearview mirror bearing supports as described in any one of claims 1-5, characterized in that, Includes the following steps: Step 1: Place the supports and bearings to be assembled on the feeding assembly, and control the supports and bearings to move to the required assembly position under the action of the feeding assembly; Step 2: The lifting mechanism controls the movement of the receiving plate, causing the clamping component to move to the position where it mates with the bearing and clamps the bearing; Step 3: After clamping is completed, the lifting mechanism applies downward pressure to the bearing through the clamping assembly to assemble the bearing and the support by press fitting. Step 4: After assembly, the rotating testing mechanism controls the bearing rotation through the clamping components and performs a resistance test on the bearing based on the rotational resistance.

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