Locking tooth detection and correction device of automobile seat angle adjuster

Abstract

The invention discloses a lock tooth detection and correction device of an automobile seat angle adjuster, and belongs to the technical field of supporting facilities of an automatic production line of automobile parts. A support is included; the lock tooth detection mechanism mounting rack lifting driving mechanism is arranged on the front side of the upper part of the bracket; the lock tooth detection mechanism mounting rack is connected with the lock tooth detection mechanism mounting rack lifting driving mechanism to form a sliding pair capable of sliding up and down; the lock tooth angle detection mechanism is arranged on the lock tooth detection mechanism mounting rack and ascends and descends along with the ascending and descending of the lock tooth detection mechanism mounting rack; the lock tooth angle correction mechanism is arranged on the lock tooth detection mechanism mounting rack at the position on the left side of the lock tooth angle detection mechanism and is rotationally connected with the lock tooth angle detection mechanism; and the rotary encoder is arranged on the lock tooth detection mechanism mounting rack and is in transmission connection with the lock tooth angle detection mechanism. The locking device has the advantages that the teeth of the toothed plate are fully and accurately meshed with the locking teeth of the fluted disc, and the occurrence of factors such as locking failure, abnormal sound generation and influence on operation and safety is avoided.

Description

Technical Field

[0001] The present invention belongs to the technical field of auxiliary facilities for an automated production line of automotive parts, and particularly relates to a locking tooth detection and correction device for an automotive seat adjuster. Background Art

[0002] The aforementioned locking teeth mainly but not limited to are the locking teeth of a tooth ring formed around the circumferential direction (i.e., the circumferential wall) of an accommodation cavity (i.e., a tooth disc cavity) of a tooth disc, as disclosed in Chinese patents CN205468633U (automotive seat adjuster) and CN205468634U (an automotive seat adjuster). The locking or unlocking of an adjuster of this structural form is reflected by the engagement or disengagement of the teeth of a small tooth plate with the locking teeth of the aforementioned tooth ring. However, due to comprehensive factors such as the accumulation of errors in the automated production process chain and / or interference from dynamic working conditions, there is inevitably a deviation in the locking tooth angle of the tooth ring, which affects the probability of engagement with the small tooth plate. Moreover, fluctuations in raw materials, such as uneven sheet thickness (with tolerances), differences in material springback, stamping process errors, die wear, positioning deviations (sheet feeding and positioning errors during stamping), inconsistent heat treatment deformation, component fitting tolerances, assembly stress interference, environmental factors, and so on and so forth, may all cause a probability of deviation in the locking tooth angle. Therefore, the positive significance of detecting and correcting the locking tooth angle of the tooth ring of the tooth disc to facilitate the good engagement of a set of small tooth plates with it at least includes: ensuring the engagement accuracy, avoiding locking failure or generating abnormal noises during adjustment; suppressing the cumulative error of multiple teeth; avoiding the risk of locking failure, preventing the seat back from accidentally reclining during emergency braking of the vehicle, and ensuring the safety of the occupants; eliminating abnormal noises and vibrations; improving the operating comfort on the vehicle, and so on. Summary of the Invention

[0003] The task of the present invention is to provide a locking tooth detection and correction device for an automotive seat adjuster that can make the locking tooth angle meet the good engagement of the teeth of a small tooth plate with the locking teeth of a tooth disc, thereby avoiding problems such as locking failure, generating abnormal noises, and affecting operation and safety during use.

[0004] The task of the present invention is accomplished in this way. A locking tooth detection and correction device for a car seat recliner includes a bracket, which is set up along with the automatic assembly line of the car seat recliner in the use state and the bottom is supported on the floor, while the upper part corresponds to the upper part of the automatic assembly line of the car seat recliner in a vacant state; a locking tooth detection mechanism mounting frame lifting and driving mechanism, the locking tooth detection mechanism mounting frame lifting and driving mechanism is arranged on the upper front side of the bracket; a locking tooth detection mechanism mounting frame, the locking tooth detection mechanism mounting frame is connected to the locking tooth detection mechanism mounting frame lifting and driving mechanism and A sliding pair that slides up and down with the lifting drive mechanism of the lock tooth detection mechanism mounting frame; a lock tooth angle detection mechanism, which is arranged on the lock tooth detection mechanism mounting frame and rises and falls with the lifting of the lock tooth detection mechanism mounting frame; a lock tooth angle correction mechanism, which is also arranged on the lock tooth detection mechanism mounting frame at a position on the left side of the lock tooth angle detection mechanism and is rotationally connected to the lock tooth angle detection mechanism; a rotary encoder, which is arranged on the lock tooth detection mechanism mounting frame and is transmission-connected to the lock tooth angle detection mechanism.

[0005] In a specific embodiment of the present invention, the bracket includes a left column, a right column and a crossing plate, the left and right columns correspond to each other on the left and right, and are respectively longitudinally arranged on the left and right sides of the automatic assembly line of the car seat angle adjuster when in use, and a left column fixing seat is provided at the lower end of the left column, and the left column fixing seat is fixed to the embedded parts on the floor, and a right column fixing seat is provided at the lower end of the right column, and the right column fixing seat is fixed to the embedded parts on the floor, the crossing plate is fixed between the upper ends of the left and right columns and corresponds to the top of the left car seat angle adjuster automatic assembly line in a vacant state; the locking tooth detection mechanism mounting frame lifting drive mechanism is arranged on the front side of the crossing plate.

[0006] In another specific embodiment of the present invention, the locking tooth detection mechanism mounting frame lifting drive mechanism includes a cover plate, a mounting frame lifting drive cylinder, a left longitudinal slide rail and a right longitudinal slide rail, the cover plate is fixed to the cover plate at a position corresponding to the middle of the front side of the crossing plate, and a mounting frame lifting drive cylinder fixing wing plate extends upward from the center position of the upper edge of the cover plate, the mounting frame lifting drive cylinder is in a state where its mounting frame lifting drive cylinder column is facing downward and is fixed to the front side of the mounting frame lifting drive cylinder fixing wing plate, the left longitudinal slide rail and the right longitudinal slide rail are fixed to the front side of the cover plate in a longitudinally parallel state at positions corresponding to the left and right sides of the mounting frame lifting drive cylinder column respectively; the locking tooth detection mechanism mounting frame is connected to the mounting frame lifting drive cylinder column and at the same time forms a sliding pair that slides up and down with the left longitudinal slide rail and the right longitudinal slide rail.

[0007] In yet another specific embodiment of the present invention, the mounting frame of the lock tooth detection mechanism includes an upper platform, a lower platform, a platform fixedly connected back plate, a left support connecting arm frame for the upper and lower platforms, a right support connecting arm frame for the upper and lower platforms, a pair of left buffer air springs and a pair of right buffer air springs. The left end and the right end of the upper platform are respectively fixed to the tops of the left support connecting arm frame for the upper and lower platforms and the right support connecting arm frame for the upper and lower platforms. At the center position of the rear side surface of the upper platform, a connecting seat for the mounting frame lifting driving cylinder column is fixed, and the connecting seat for the mounting frame lifting driving cylinder column is connected to the mounting frame lifting driving cylinder column. The left end and the right end of the lower platform are respectively fixed to the bottoms of the left support connecting arm frame for the upper and lower platforms and the right support connecting arm frame for the upper and lower platforms. The platform fixedly connected back plate is fixed longitudinally between the opposite sides of the rear side edge of the upper platform and the rear side edge of the lower platform. A left slider and a right slider are fixed to the rear side of the platform fixedly connected back plate. The left slider and the left longitudinal slide rail form a sliding pair for up and down sliding, and the right slider and the right longitudinal slide rail form a sliding pair for up and down sliding. And at the center positions of the left side surface and the right side surface of the platform fixedly connected back plate, a corresponding foot for the buffer air spring extends respectively. A pair of left buffer springs are fixed to the front side surface of the cover plate in a state of being vertically corresponding to each other at a position on the left side of the left longitudinal slide rail, and a pair of right buffer springs are fixed to the front side surface of the cover plate in a state of being vertically corresponding to each other at a position on the right side of the right longitudinal slide rail. The corresponding foot for the buffer air spring on the left side surface of the platform fixedly connected back plate corresponds to the space between a pair of left buffer springs, and the corresponding foot for the buffer air spring on the right side surface of the platform fixedly connected back plate corresponds to the space between a pair of right buffer springs; the lock tooth angle detection mechanism is arranged on the upper platform and the lower platform; the lock tooth angle deviation correction mechanism and the rotary encoder are arranged on the lower platform.

[0008] In another specific embodiment of the present invention, the lock tooth angle detection mechanism includes a detection motor, a detection reduction box, a limit boss clutch block, a toothed plate driving member shaft, a limit boss, a tension spring, a large transmission pulley, a transmission belt and a small transmission pulley. The detection motor is arranged on the detection reduction box with its detection motor shaft facing downward and cooperates with the detection reduction box transmission, and the detection reduction box is fixed to the upper platform together with the detection motor, and the detection reduction box shaft of the detection reduction box extends to the bottom of the upper platform, the limit boss clutch block is located below the upper platform and is fixed to the detection reduction box shaft, a clutch block tension spring connecting rod is fixed on the side of the limit boss clutch block facing the tension spring, and a pair of clutch claws are formed at the lower part of the limit boss clutch block, the space between the pair of clutch claws is formed as a limit boss protruding into the yield opening, and the middle part of the toothed plate driving member shaft rotates through the shaft bearing seat. The cam is supported on the lower platform, and the upper end of the gear plate driving shaft is formed with a shaft driving head with a diameter larger than the diameter of the gear plate driving shaft. The lower end of the gear plate driving shaft extends to the bottom of the lower platform and extends with a gear plate driving mating head with a diameter smaller than the diameter of the gear plate driving shaft. The limiting boss is directly formed on the side of the shaft driving head facing upward, and a limiting boss spring connecting rod is fixed on the side of the limiting boss facing the tension spring, and the middle part of the limiting boss corresponds to the limiting boss extending into the clearance opening, the tension spring is connected between the clutch block tension spring connecting rod and the limiting boss spring connecting rod, the large transmission pulley is fixed on the shaft driving head, one end of the transmission belt is sleeved on the small transmission pulley, and the other end is sleeved on the large transmission pulley, and the small transmission pulley is transmission-connected to the rotary encoder; the locking tooth angle correction mechanism is rotationally connected to the lower end of the gear plate driving shaft.

[0009] In yet another specific embodiment of the present invention, the large transmission pulley and the small transmission pulley are synchronous pulleys, and the transmission belt is a synchronous belt.

[0010] In a more specific embodiment of the present invention, a pair of rotary encoder fixing seat arms extend from the front side of the lower platform in a left-right corresponding state to each other, the space between the pair of rotary encoder fixing seat arms constitutes a rotary encoder mounting cavity, a rotary encoder fixing seat is fixed between the upward sides of the pair of rotary encoder fixing seat arms, the rotary encoder is located in the rotary encoder mounting cavity and is fixed to the rotary encoder fixing seat, the rotary encoder shaft of the rotary encoder extends to the top of the rotary encoder fixing seat, the signal output end of the rotary encoder is electrically connected to the electrical controller by a circuit, and the small transmission pulley is fixed to the rotary encoder shaft at a position corresponding to the top of the rotary encoder fixing seat.

[0011] In a further specific embodiment of the present invention, a snap ring groove is formed at the lower end of the rotating shaft of the tooth plate driving member and around the circumferential direction of the rotating shaft of the tooth plate driving member; the locking tooth angle deviation correction mechanism includes a deviation correction motor, a deviation correction reduction gearbox, a deviation correction driving wheel, a deviation correction wheel, an upper cover of the deviation correction wheel, and a pressure rod disc. The deviation correction motor is located on the left side of the detection reduction gearbox. The deviation correction motor is arranged on the deviation correction reduction gearbox with its deviation correction motor shaft facing downward and is in transmission cooperation with the deviation correction reduction gearbox. The deviation correction reduction gearbox together with the deviation correction motor is fixed on the upward side of the lower platform. The deviation correction reduction gearbox shaft of the deviation correction reduction gearbox extends below the lower platform. The deviation correction driving wheel is fixed to the deviation correction reduction gearbox shaft at a position corresponding to below the lower platform and the deviation correction driving wheel meshes with the deviation correction wheel. The deviation correction wheel is rotatably sleeved on the rotating shaft of the tooth plate driving member through a deviation correction wheel bearing arranged at its central position and at a position above the snap ring groove. The upper cover of the deviation correction wheel is arranged above the deviation correction wheel, and the pressure rod disc is located below the deviation correction wheel. The upper cover of the deviation correction wheel, the deviation correction wheel, and the pressure rod disc are fixed as a whole by a group of fasteners distributed at intervals. The deviation correction wheel together with the upper cover of the deviation correction wheel and the pressure rod disc is rotatably arranged at the lower end of the rotating shaft of the tooth plate driving member, and the lower surface of the pressure rod disc is limited against falling off by a snap ring inserted into the snap ring groove. Among them, a group of tooth disc pressure rods are arranged at intervals around the circumference of the pressure rod disc on the lower surface of the pressure rod disc.

[0012] In yet another more specific embodiment of the present invention, a deviation correction driving wheel fixing sleeve protruding from the upper surface of the deviation correction driving wheel is formed at the central position on the upward side of the deviation correction driving wheel. A key groove is formed on the wall of the deviation correction driving wheel fixing sleeve cavity of the deviation correction driving wheel fixing sleeve. The deviation correction driving wheel is fixedly connected to the deviation correction reduction gearbox shaft by the key groove on the wall of the deviation correction driving wheel fixing sleeve cavity.

[0013] In yet another further specific embodiment of the present invention, a deviation correction wheel upper cover central hole is formed at the central position of the upper cover of the deviation correction wheel, and a pressure rod disc central hole is formed at the central position of the pressure rod disc. The deviation correction wheel upper cover central hole, the deviation correction wheel bearing, and the pressure rod disc central hole are concentrically rotatably connected to the rotating shaft of the tooth plate driving member.

[0014] The technical effect of the technical solution provided by the present invention is as follows: Since the locking tooth angle detection mechanism detects whether the teeth of the tooth plate are engaged with the locking teeth on the cavity wall of the tooth disc cavity of the tooth disc, and the rotation encoder outputs a signal indicating whether they are engaged. When the rotation angle of the locking tooth angle detection mechanism is consistent with the set speed of the rotation encoder, it indicates engagement and there is no need to activate the locking tooth angle correction mechanism. When the teeth of the tooth plate are not engaged with the locking teeth, the rotation encoder outputs a signal indicating that the rotation angle of the locking tooth angle detection mechanism is inconsistent with the set rotation angle, and the tooth disc angle is adjusted by the operation of the locking tooth angle correction mechanism, so as to ensure that the teeth of the tooth plate are fully and accurately engaged with the locking teeth of the tooth disc, and avoid the occurrence of problems such as locking failure, abnormal noise, and affecting operation and safety factors during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a structural diagram of an embodiment of the present invention; Figure 2 is a schematic diagram of an application example of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] In order to more clearly understand the technical essence and beneficial effects of the present invention, detailed descriptions will be given below in the form of embodiments. However, the descriptions of the embodiments are not limitations on the technical solutions of the present invention. Any equivalent transformation that is merely formal rather than substantial based on the concept of the present invention should be regarded as falling within the scope of the technical solutions of the present invention.

[0017] In the following descriptions, all directional or positional concepts such as up, down, left, right, front, and back are based on Figure 1 the position state at that time, and thus cannot be understood as special limitations on the technical solutions provided by the present invention.

[0018] Please refer to Figure 1 and in combination with Figure 2 , a bracket 1 is shown. The bracket 1 is accompanied by an automatic assembly line 100 of an automotive seat adjuster in the use state ( Figure 21 and 10; a locking gear detection mechanism mounting frame lifting drive mechanism 2 is shown, and the locking gear detection mechanism mounting frame lifting drive mechanism 2 is arranged on the upper front side of the aforementioned bracket 1; a locking gear detection mechanism mounting frame 3 is shown, and the locking gear detection mechanism mounting frame 3 is connected to the aforementioned locking gear detection mechanism mounting frame lifting drive mechanism 2 and constitutes a sliding pair that slides up and down with the locking gear detection mechanism mounting frame lifting drive mechanism 2; a locking gear angle detection mechanism 4 is shown, and the locking gear angle detection mechanism 4 is arranged on the aforementioned locking gear detection mechanism mounting frame 3 and rises and falls with the lifting and lowering of the locking gear detection mechanism mounting frame 3; a locking gear angle correction mechanism 5 is shown, and the locking gear angle correction mechanism 5 is also arranged on the aforementioned locking gear detection mechanism mounting frame 3 at a position on the left side of the aforementioned locking gear angle detection mechanism 4 and is rotationally connected to the aforementioned locking gear angle detection mechanism 4; a rotary encoder 6 is shown, and the rotary encoder 6 is arranged on the aforementioned locking gear detection mechanism mounting frame 3 and is transmission-connected to the aforementioned locking gear angle detection mechanism 4.

[0019] The essential meaning of the above-mentioned rotational connection between the lock tooth angle correction mechanism 5 and the lock tooth angle detection mechanism 4 is that the components of the structural system of the lock tooth angle correction mechanism 5, such as the correction wheel 54, which will be described in detail below, are rotatably mounted on the structural system of the lock tooth angle detection mechanism 4 and on the gear plate drive shaft 44, which will also be described in detail below, but do not drive the gear plate drive shaft 44 to rotate.

[0020] Please see the key Figure 1 The aforementioned bracket 1 includes a left column 11, a right column 12 and a spanning plate 13. The left and right columns 11 and 12 correspond to each other on the left and right sides, and are respectively longitudinally arranged on the left and right sides of the detection station of the aforementioned automobile seat recliner automatic assembly line 100 when in use. A left column fixing seat 111 is provided at the lower end of the left column 11, and the left column fixing seat 111 is fixed to the embedded parts or similar carriers on the floor. Specifically, a left column fixing seat chassis 1111 is fixed to the lower part of the left column fixing seat 111, and the left column fixing seat chassis 1111 is fixed to the embedded parts or similar carriers on the floor. A right column fixing seat 121 is provided at the lower end of the right column 12, and the right column fixing seat 121 is fixed to the embedded part or similar carrier on the floor. Specifically, a right column fixing seat chassis 1211 is fixed to the lower part of the right column fixing seat 121, and the right column fixing seat chassis 1211 is fixed to the embedded part or similar carrier on the floor. The spanning plate 13 is fixed between the upper ends of the left and right columns 11 and 12 and corresponds to the upper part of the above-mentioned left car seat recliner automatic assembly line 100 in a vacant state; the above-mentioned lock tooth detection mechanism mounting frame lifting drive mechanism 2 is arranged on the front side of the above-mentioned spanning plate 13.

[0021] As shown in Figure 1 , a pair of upper and lower corresponding cross - plate left fixing seats 131 for fixing the left end of the cross - plate 13 to the left column 11 are arranged at the rear side of the left end of the foregoing cross - plate 13, and a pair of upper and lower corresponding cross - plate right fixing seats 132 for fixing the right end of the cross - plate 13 to the right column 12 are also arranged at the rear side of the right end of the cross - plate 13. In the form shown in Figure 1 and by means of fasteners such as bolts, the left end of the cross - plate 13 is reliably fixed to the left column 11 through the cross - plate left fixing seat 131. Similarly, the right end of the cross - plate 13 is reliably fixed to the right column 12 through the cross - plate right fixing seat 132 by means of fasteners such as bolts. In the present invention, it is defined as the cross - plate 13 because it spans above the inspection station of the automatic assembly line 100 of the vehicle seat recliner (the assembly line can also be called the "production line", and the same examples mentioned above and to be mentioned below). Figure 2

[0022] Continue to refer to Figure 1 , the above - mentioned lock - tooth detection mechanism mounting frame lifting drive mechanism 2 includes a cover plate 21, a mounting frame lifting drive actuator 22, a left longitudinal slide rail 23 and a right longitudinal slide rail 24. The cover plate 21 is fixed to the cover plate 21 by screws at a position corresponding to the middle part of the front side of the foregoing cross - plate 13, and a mounting frame lifting drive actuator fixed wing plate 211 extends upward at the central position of the upper edge of the cover plate 21. The mounting frame lifting drive actuator 22 is fixed to the front side of the mounting frame lifting drive actuator fixed wing plate 211 with its mounting frame lifting drive actuator column 221 facing downward. In this embodiment, the mounting frame lifting drive actuator 22 is a cylinder. The left longitudinal slide rail 23 and the right longitudinal slide rail 24 are fixed to the front side of the foregoing cover plate 21 in a longitudinally parallel state by screws at positions corresponding to the left and right sides of the mounting frame lifting drive actuator column 221 respectively; the above - mentioned lock - tooth detection mechanism mounting frame 3 is connected to the above - mentioned mounting frame lifting drive actuator column 221 and simultaneously forms a sliding pair for vertical sliding with the above - mentioned left longitudinal slide rail 23 and right longitudinal slide rail 24.

[0023] The above - mentioned lock - tooth detection mechanism mounting frame 3 includes an upper platform 31, a lower platform 32, a platform fixed connection back plate 33, an upper and lower platform left support connection arm frame 34, an upper and lower platform right support connection arm frame 35, a pair of left buffer air springs 36 and a pair of right buffer air springs 37. The left end and the right end of the upper platform 31 are fixed to the tops of the upper and lower platform left support connection arm frame 34 and the upper and lower platform right support connection arm frame 35 respectively by screws. A mounting frame lifting drive actuator column connection seat 311 is fixed at the central position of the rear side of the upper platform 31, and the mounting frame lifting drive actuator column connection seat 311 is connected to the above - mentioned mounting frame lifting drive actuator column 221. As shown in Figure 1As shown in the figure, a cylinder neck cavity 3111 is formed at the rear side of the cylinder column connecting seat 311 for the lifting drive of the mounting frame, and a cylinder neck 2211 is formed at the lower end of the cylinder column 221 for the lifting drive of the mounting frame. The cylinder neck 2211 is fitted into the cylinder neck cavity 3111, so that the entire mounting frame 3 of the lock tooth detection mechanism and the lock tooth angle detection mechanism 4, the lock tooth angle deviation correction mechanism 5 and the rotary encoder 6 provided with it as a carrier can be lifted and lowered with the lifting and lowering of the cylinder column 221 for the lifting drive of the mounting frame. The left end and the right end of the lower platform 32 are respectively fixed to the bottoms of the left support connecting arm frame 34 and the right support connecting arm frame 35 of the upper and lower platforms by screws. The platform fixed connection back plate 33 is fixed longitudinally by screws between the opposite sides of the rear side edge of the upper platform 31 and the rear side edge of the lower platform 32. A left slider 331 and a right slider 332 are respectively fixed to the rear side of the platform fixed connection back plate 33 by screws. The left slider 331 forms a sliding pair with the left longitudinal slide rail 23 for up and down sliding, and the right slider 332 forms a sliding pair with the right longitudinal slide rail 24 for up and down sliding. And a buffer air spring corresponding foot 333 extends from the center position of the left side surface and the right side surface of the platform fixed connection back plate 33. A pair of left buffer springs 36 are fixed to the front side surface of the cover plate 21 in a state of being vertically corresponding to each other at a position on the left side of the left longitudinal slide rail 23, and a pair of right buffer springs 37 are fixed to the front side surface of the cover plate 21 in a state of being vertically corresponding to each other at a position on the right side of the right longitudinal slide rail 24. The buffer air spring corresponding foot 333 on the left side surface of the platform fixed connection back plate 33 corresponds to the space between a pair of left buffer springs 36, and the buffer air spring corresponding foot 333 on the right side surface of the platform fixed connection back plate 33 corresponds to the space between a pair of right buffer springs 37; the aforementioned lock tooth angle detection mechanism 4 is arranged on the aforementioned upper platform 31 and the aforementioned lower platform 32; the aforementioned lock tooth angle deviation correction mechanism 5 and the aforementioned rotary encoder 6 are arranged on the aforementioned lower platform 32.

[0024] When the cylinder 22 for the lifting drive of the mounting frame works and the cylinder column 221 for the lifting drive of the mounting frame extends downward, that is, extends out of the cylinder body of the cylinder 22 for the lifting drive of the mounting frame, since the cylinder neck 2211 of the cylinder column 221 for the lifting drive of the mounting frame is fitted and connected with the cylinder neck cavity 3111 of the cylinder column connecting seat 311 of the upper platform 31, the entire mounting frame 3 of the lock tooth detection mechanism and the mechanisms provided with it as a carrier mentioned above can also be displaced downward, and vice versa.

[0025] Continue to see Figure 1, the aforementioned locking tooth angle detection mechanism 4 includes a detection motor 41, a detection speed reducer 42, a limit boss clutch block 43, a tooth plate driving member rotating shaft 44, a limit boss 45, a tension spring 46, a large transmission belt pulley 47, a transmission belt 48 and a small transmission belt pulley 49. The detection motor 41 is arranged on the detection speed reducer 42 with its detection motor shaft facing downward and is in transmission cooperation with the detection speed reducer 42. The detection speed reducer 42 together with the detection motor 41 is fixed on the aforementioned upper platform 31, and the detection speed reducer shaft 421 of the detection speed reducer 42 extends below the upper platform 31. The limit boss clutch block 43 is located below the upper platform 31 and is fixed to the aforementioned detection speed reducer shaft 421. A clutch block tension spring connecting rod 431 is fixed on one side of the limit boss clutch block 43 facing the tension spring 46, and a pair of clutch claws 432 are formed at the lower part of the limit boss clutch block 43. The space between the pair of clutch claws 432 constitutes a limit boss insertion relief opening 4321. The middle part of the tooth plate driving member rotating shaft 44 is rotatably supported on the aforementioned lower platform 32 through a rotating shaft bearing seat 441. The upper end of the tooth plate driving member rotating shaft 44 is formed with a rotating shaft driving head 442 having a diameter larger than that of the tooth plate driving member rotating shaft 44. The lower end of the tooth plate driving member rotating shaft 44 extends below the lower platform 32 and extends a tooth plate driving member mating head 443 having a diameter smaller than that of the tooth plate driving member rotating shaft 44. The limit boss 45 is directly formed on one side of the rotating shaft driving head 442 facing upward, and a limit boss tension spring connecting rod 451 is fixed on one side of the limit boss 45 facing the tension spring 46. The middle part of the limit boss 45 corresponds to the aforementioned limit boss insertion relief opening 4321. The tension spring 46 is connected between the aforementioned clutch block tension spring connecting rod 431 and the limit boss tension spring connecting rod 451. The large transmission belt pulley 47 is sleeved and fixed on the aforementioned rotating shaft driving head 442. One end of the transmission belt 48 is sleeved on the small transmission belt pulley 49, and the other end is sleeved on the large transmission belt pulley 47. The small transmission belt pulley 49 is in transmission connection with the aforementioned rotary encoder 6; the aforementioned locking tooth angle deviation correction mechanism 5 is rotatably connected to the lower end of the aforementioned tooth plate driving member rotating shaft 44.

[0026] In this embodiment, the aforementioned large transmission belt pulley 47 and the small transmission belt pulley 49 are synchronous belt pulleys. Correspondingly, the aforementioned transmission belt 48 is a synchronous belt.

[0027] Please still refer to Figure 1, a pair of rotary encoder fixing seat arms 321 extend from the front side of the aforementioned lower platform 32 in a left-right corresponding state to each other. The space between the pair of rotary encoder fixing seat arms 321 constitutes a rotary encoder installation cavity 3211. A rotary encoder fixing seat 3212 is fixed between the upper sides of the pair of rotary encoder fixing seat arms 321. The aforementioned rotary encoder 6 is located in the rotary encoder installation cavity 3211 and is fixed to the rotary encoder fixing seat 3212 by screws in a cantilever state or a suspended state. The rotary encoder shaft 61 of the rotary encoder 6 extends above the rotary encoder fixing seat 3212. The signal output end 62 of the rotary encoder 6 is electrically connected to the electrical controller by a circuit, and more specifically, is electrically connected to the PLC (programmable logic controller) of the electrical controller. The aforementioned small transmission pulley 49 is fixed to the rotary encoder shaft 61 at a position corresponding to the upper side of the rotary encoder fixing seat 3212.

[0028] Continue to see Figure 1 , a snap ring groove 444 is formed at the lower end of the aforementioned toothed plate driving member rotating shaft 44 and around the circumferential direction of the toothed plate driving member rotating shaft 44; the aforementioned locking tooth angle deviation correction mechanism 5 includes a deviation correction motor 51, a deviation correction reduction gearbox 52, a deviation correction driving wheel 53, a deviation correction wheel 54, a deviation correction wheel upper cover 55, and a pressure rod disc 56. The deviation correction motor 51 is located on the left side of the aforementioned detection reduction gearbox 42. The deviation correction motor 51 is arranged on the deviation correction reduction gearbox 52 with its deviation correction motor shaft facing downward and is in transmission cooperation with the deviation correction reduction gearbox 52. The deviation correction reduction gearbox 52 together with the deviation correction motor 51 is fixed to the upper side of the aforementioned lower platform 32. The deviation correction reduction gearbox shaft 521 of the deviation correction reduction gearbox 52 extends below the lower platform 32. The deviation correction driving wheel 53 is fixed to the deviation correction reduction gearbox shaft 521 at a position corresponding to the lower side of the lower platform 32 and the deviation correction driving wheel 53 meshes with the deviation correction wheel 54. The deviation correction wheel 54 is rotatably sleeved on the aforementioned toothed plate driving member rotating shaft 44 through a deviation correction wheel bearing 541 provided at its central position and at a position above the snap ring groove 444. The deviation correction wheel upper cover 55 is arranged above the deviation correction wheel 54. The pressure rod disc 56 is located below the deviation correction wheel 54. The deviation correction wheel upper cover 55, the deviation correction wheel 54, and the pressure rod disc 56 are fixed as a whole by a group of fasteners such as bolts distributed at intervals. The deviation correction wheel 54 together with the deviation correction wheel upper cover 55 and the pressure rod disc 56 is rotatably arranged at the lower end of the toothed plate driving member rotating shaft 44, and the lower surface of the pressure rod disc 56 is limited against falling off by a snap ring inserted into the snap ring groove 444. Among them, a group of tooth disc pressure rods 561 are arranged at intervals around the circumference of the pressure rod disc 56 on the lower surface of the aforementioned pressure rod disc 56.

[0029] At the central position on the upward side of the aforementioned deviation rectifying driving wheel 53, there is formed a deviation rectifying driving wheel fixing sleeve 531 protruding from the upper surface of the deviation rectifying driving wheel 53. On the wall of the deviation rectifying driving wheel fixing sleeve cavity 5311 of the deviation rectifying driving wheel fixing sleeve 531, there is formed a keyway 53111. The aforementioned deviation rectifying driving wheel 53 is fixedly connected to the aforementioned deviation rectifying reduction gearbox shaft 521 by key connection through the keyway 53111 on the wall of the deviation rectifying driving wheel fixing sleeve cavity 5311.

[0030] At the central position of the aforementioned deviation rectifying wheel upper cover 55, there is opened a deviation rectifying wheel upper cover central hole 551. At the central position of the aforementioned pressure rod disc 56, there is opened a pressure rod disc central hole 562. The deviation rectifying wheel upper cover central hole 551, the aforementioned deviation rectifying wheel bearing 541, and the pressure rod disc central hole 562 are concentrically and rotationally connected to the aforementioned toothed plate driving member rotating shaft 44, that is, sleeved on the toothed plate driving member rotating shaft 44.

[0031] Please refer to Figure 2 And in combination with Figure 1 , Figure 1 Figure 12 shows the above-mentioned automobile seat adjuster automatic assembly line 100 in the form of a conveyor belt, and also shows the carrier platform 7, which can also be called the adjuster clamping platform. After the previous process is completed and the toothed disc 81 of the automobile seat adjuster 8 covers the toothed disc seat, the central position of the toothed disc 81 has an operation shaft hole 811. The function of the operation shaft hole 811 is for the operation device to cooperate with it. The operation device can be either manual or electric. The position corresponding to the operation shaft hole 811 is exactly the camshaft hole of the driving mechanism with cam blocks in the structural system of the automobile seat adjuster 8. On the inner wall of the aforementioned toothed disc 81 and around the circumferential direction of the inner wall, locking teeth are formed. The function of the aforementioned driving mechanism with cam blocks is to push a group of toothed blocks (also called "toothed plates", the same below). The number of this group of toothed blocks is usually four, but it can also be three, or even two in a C shape. The cam blocks correspond to the central area at the opposite ends of a group of toothed blocks and can act on a group of toothed blocks simultaneously. And one end of a group of toothed blocks facing the locking teeth on the inner wall of the aforementioned toothed disc 81 is formed with toothed block teeth. When the aforementioned driving mechanism with cam blocks moves clockwise and makes a group of toothed blocks displace towards the locking teeth, then the toothed block teeth are engaged with the locking teeth of the toothed disc 81, and vice versa. Since the automobile seat adjuster 8 in this embodiment is mainly but not limited to the structural forms of CN205468633U (automobile seat adjuster) and CN205468634U (an automobile seat adjuster) mentioned in the previous background technology column, the applicant will no longer elaborate on the specific structure of the automobile seat adjuster 8, because those skilled in the art can fully understand it through reading the aforementioned patent documents which are not limited to examples.

[0032] The engaging head 443 of the toothed plate drive member that extends below the rotating shaft 44 of the toothed plate drive member mentioned above is actually equivalent to or simulates the component that drives the aforementioned drive mechanism with cam blocks in the usage state. In the present invention, the angle turned by the detection motor 41, that is, the angle turned by the rotating shaft 44 of the toothed plate drive member, is consistent with the preset angle of the rotary encoder 6. If they are not consistent, it indicates that the teeth of the aforementioned set of tooth blocks fail to engage with the locking teeth of the toothed disc 81. Therefore, it is necessary to correct the deviation of the toothed disc 81 so that it turns by an angle until the teeth of the tooth blocks engage with the locking teeth, because only in the engaged state can the angle turned by the detection motor 41 be consistent with the correct response angle of the pre-set rotary encoder 6.

[0033] When the vehicle platform 7 is conveyed to the position of the detection station where the present invention is located, the vehicle platform 7 pauses its movement for detection by the device of the present invention as follows: The mounting frame lifting drive cylinder 22 operates, and the mounting frame 3 of the lock tooth detection mechanism is driven downward by the cylinder rod 221 of the mounting frame lifting drive cylinder until the lower left and right buffer springs 36 and 37 in a pair of left and right buffer springs 36 and 37 descend to the limit (the specific stroke is controlled by the electric controller). At this time, due to the downward movement of the mounting frame 3 of the lock tooth detection mechanism, the engaging head 443 at the lower part of the tooth plate driving member rotating shaft 44 extends into or inserts into the operation shaft hole 811 of the tooth disc 81, and a set of tooth disc pressing rods 561 abut against one surface of the tooth disc 81 facing upward. Then the detection motor 41 operates to drive the detection speed reducer 42, and the detection speed reducer shaft 421 drives the limit boss clutch block 43. The limit boss clutch block 43 drives the limit boss 45 through the clutch block tension spring connecting rod 431, the tension spring 46 and the limit boss tension spring connecting member 451. At this time, the limit boss 45 drives the rotating shaft driving head 442 to rotate the tooth plate driving member rotating shaft 44. At the same time, the tooth plate driving member rotating shaft 44 drives the large belt pulley 47, which drives the small belt pulley 49 through the transmission belt 48. Since the small belt pulley 49 is fixed on the rotating encoder shaft 61 of the rotary encoder 6, the rotating encoder shaft 61 is driven by it, and the rotary encoder 6 obtains the rotation angle of the detection motor 41. At the same time, since the engaging head 443 of the tooth plate driving member is inserted into the driving mechanism with cam blocks in the structural system of the vehicle seat adjuster 8 through the operation shaft hole 811 (specifically, refer to the foregoing CN205468633U and CN205468634U), the engaging head 443 of the tooth plate driving member rotates the driving mechanism with cam blocks to displace a set of tooth blocks, so that the tooth teeth of the tooth blocks are engaged with the lock teeth of the tooth disc 81. As described above, if the rotation angle of the detection motor 41 is consistent with the preset rotation angle of the rotary encoder 6, it indicates that the installation position of the tooth disc 81 is correct, and the rotary encoder 6 feeds back a signal to the electric controller, causing the mounting frame lifting drive cylinder 22 of the mounting frame lifting drive mechanism 2 of the lock tooth detection mechanism to work in the reverse direction until the engaging head 443 of the tooth plate driving member withdraws upward from the operation shaft hole 811 of the tooth disc 81, and the vehicle platform 7 leaves the test station where the present invention is located. The next vehicle platform 7 carrying the vehicle seat adjuster 8 to be detected enters the test station.

[0034] During the above test process, if the detected rotation angle of the detection motor 41 is inconsistent with the predetermined angle of the rotary encoder 6, it indicates that the locking teeth of the tooth block teeth and the tooth disk 81 fail to mesh. Therefore, it is necessary to correct the deviation of the tooth disk 81, that is, to make the tooth disk 81 turn slightly by an angle. Specifically: the deviation correction motor 51 operates to drive the deviation correction speed reducer 52, the deviation correction speed reducer shaft 521 drives the deviation correction driving wheel 53, and the deviation correction driving wheel 53 drives the deviation correction wheel 54. Since a set of tooth disk pressing rods 561 (four in this embodiment) of the aforementioned pressing rod disk 56 fixed to the lower part of the deviation correction wheel 54 act like fingers and abut against the tooth disk 81, a set of tooth disk pressing rods 561 force the tooth disk 81 to turn by a certain angle. Then, the aforementioned locking tooth angle detection mechanism is enabled again, the tooth plate driving member rotating shaft 44 is rotated according to the process described by the applicant above, and the tooth plate driving member matching head 443 acts on the driving mechanism with a cam block again. The driving mechanism displaces a set of tooth blocks in the locking tooth direction of the tooth disk 81 through the cam block. If the tooth block teeth of the tooth block mesh with the locking teeth of the tooth disk 81, the rotation angle of the detection motor 41 will surely be consistent with the preset angle of the rotary encoder 6. If they are consistent, it indicates that the deviation correction work of the tooth disk 81 is completed, and the aforementioned tooth plate driving member rotating shaft 44 moves upward under the reverse operation of the mounting frame lifting driving cylinder 22. The carrier platform 7 leaves the detection station. It should be noted that: if the rotation angle of the detection motor 41 is inconsistent with the preset (i.e., set) angle of the rotary encoder 6, the mounting frame lifting driving cylinder 22 will not operate in the reverse direction temporarily, but still presses a set of tooth disk pressing rods 561 on the tooth disk 81 and corrects the deviation of the tooth disk 81 by the locking tooth angle deviation correction mechanism 5 until the rotation angle of the detection motor 41 is consistent with the preset degree of the rotary encoder 6.

[0035] In summary, the technical solution provided by the present invention makes up for the deficiencies in the prior art, successfully completes the invention task, and faithfully realizes the technical effects described by the applicant in the technical effect column above.

Claims

1. A locking tooth detection and correction device for a car seat recliner, characterized in that: The invention comprises a bracket (1), which is arranged along with an automatic assembly line (100) for adjusting the angle of an automobile seat in a state of use, and the bottom of the bracket (1) is supported on the ground, while the upper part corresponds to the upper part of the automatic assembly line (100) for adjusting the angle of an automobile seat in a vacant state; a locking gear detection mechanism mounting frame lifting and driving mechanism (2), the locking gear detection mechanism mounting frame lifting and driving mechanism (2) is arranged on the upper front side of the bracket (1); and a locking gear detection mechanism mounting frame (3), the locking gear detection mechanism mounting frame (3) is connected to the locking gear detection mechanism mounting frame lifting and driving mechanism (2) and forms a locking gear detection mechanism mounting frame lifting and driving mechanism (2) with the locking gear detection mechanism mounting frame lifting and driving mechanism (2). A sliding pair that slides up and down; a lock tooth angle detection mechanism (4), which is arranged on the lock tooth detection mechanism mounting frame (3) and rises and falls with the rise and fall of the lock tooth detection mechanism mounting frame (3); a lock tooth angle correction mechanism (5), which is also arranged on the lock tooth detection mechanism mounting frame (3) at a position on the left side of the lock tooth angle detection mechanism (4) and is rotationally connected to the lock tooth angle detection mechanism (4); and a rotary encoder (6), which is arranged on the lock tooth detection mechanism mounting frame (3) and is transmission-connected to the lock tooth angle detection mechanism (4).

2. The locking tooth detection and correction device of the car seat recliner according to claim 1, characterized in that: The bracket (1) comprises a left column (11), a right column (12) and a spanning plate (13), the left and right columns (11, 12) correspond to each other on the left and right sides, and are respectively arranged longitudinally on the left and right sides of the automatic assembly line (100) of the car seat recliner in a use state, and a left column fixing seat (111) is arranged at the lower end of the left column (11), and the left column fixing seat (111) is fixed to the embedded part on the floor, and a right column fixing seat (121) is arranged at the lower end of the right column (12), and the right column fixing seat (121) is fixed to the embedded part on the floor, and the spanning plate (13) is fixed between the upper ends of the left and right columns (11, 12) and corresponds to the upper side of the left automatic assembly line (100) of the car seat recliner in a vacant state; the locking tooth detection mechanism mounting frame lifting drive mechanism (2) is arranged on the front side of the spanning plate (13).

3. The locking tooth detection and correction device of the car seat recliner according to claim 2, characterized in that: The locking gear detection mechanism mounting frame lifting drive mechanism (2) comprises a cover plate (21), a mounting frame lifting drive cylinder (22), a left longitudinal slide rail (23) and a right longitudinal slide rail (24), wherein the cover plate (21) is fixed to the cover plate (21) at a position corresponding to the middle of the front side of the spanning plate (13), and a mounting frame lifting drive cylinder fixing wing plate (211) is extended upward at the center position of the upper edge of the cover plate (21), and the mounting frame lifting drive cylinder (22) is connected to the mounting frame lifting drive cylinder column (22 1) in a downward state, the front side of the wing plate (211) is fixed to the mounting frame lifting drive cylinder, and the left longitudinal slide rail (23) and the right longitudinal slide rail (24) are fixed to the front side of the cover plate (21) in a longitudinal parallel state at positions corresponding to the left and right sides of the mounting frame lifting drive cylinder column (221) respectively; the lock tooth detection mechanism mounting frame (3) is connected to the mounting frame lifting drive cylinder column (221) and at the same time forms a sliding pair that slides up and down with the left longitudinal slide rail (23) and the right longitudinal slide rail (24).

4. The locking tooth detection and correction device of the car seat recliner according to claim 3, characterized in that: The locking tooth detection mechanism mounting frame (3) comprises an upper platform (31), a lower platform (32), a platform fixedly connected back plate (33), a left supporting connecting arm frame (34) of the upper and lower platforms, a right supporting connecting arm frame (35) of the upper and lower platforms, a pair of left buffer gas springs (36) and a pair of right buffer gas springs (37). The left end and the right end of the upper platform (31) are respectively fixed to the top of the left supporting connecting arm frame (34) of the upper and lower platforms and the top of the right supporting connecting arm frame (35) of the upper and lower platforms. A mounting frame lifting drive cylinder column connecting seat (311) is fixed at the center position of the rear side surface of the upper platform (31). ), the mounting frame lifting drive cylinder column connecting seat (311) is connected to the mounting frame lifting drive cylinder column (221), the left end and the right end of the lower platform (32) are respectively fixed to the bottom of the upper and lower platform left support connecting arm frame (34) and the upper and lower platform right support connecting arm frame (35), the platform fixed connecting back plate (33) is fixed in a longitudinal state between the rear side edge of the upper platform (31) and the rear side edge of the lower platform (32) facing each other, and a left slider (331) and a right slider (332) are fixed on the rear side of the platform fixed connecting back plate (33), and the left slider (331) and the right slider (332) are fixed. The left longitudinal slide rail (23) constitutes a sliding pair that slides up and down, the right slider (332) and the right longitudinal slide rail (24) constitute a sliding pair that slides up and down, and a buffer gas spring corresponding foot (333) is extended from the center position of the left side and the right side of the back plate (33) fixedly connected to the platform, a pair of left buffer springs (36) are fixed to the front side of the cover plate (21) in a state corresponding to each other at the left side of the left longitudinal slide rail (23), and a pair of right buffer springs (37) are fixed to the front side of the cover plate (21) in a state corresponding to each other at the right side of the right longitudinal slide rail (24). The state is fixed to the front side of the cover plate (21); the corresponding foot (333) of the buffer gas spring located on the left side of the platform fixedly connected to the back plate (33) corresponds to between a pair of left buffer springs (36), and the corresponding foot (333) of the buffer gas spring located on the right side of the platform fixedly connected to the back plate (33) corresponds to between a pair of right buffer springs (37); the lock tooth angle detection mechanism (4) is arranged on the upper platform (31) and the lower platform (32); the lock tooth angle correction mechanism (5) and the rotary encoder (6) are arranged on the lower platform (32).

5. The locking tooth detection and correction device of the car seat recliner according to claim 4, characterized in that: The lock tooth angle detection mechanism (4) comprises a detection motor (41), a detection reduction box (42), a limit boss clutch block (43), a tooth plate drive shaft (44), a limit boss (45), a tension spring (46), a large transmission pulley (47), a transmission belt (48) and a small transmission pulley (49); the detection motor (41) is arranged on the detection reduction box (42) with its detection motor shaft facing downward and is in transmission cooperation with the detection reduction box (42); the detection reduction box (42) together with the detection motor (41) is fixed on the upper platform (31); and the detection reduction box (42) The detection reduction box shaft (421) extends to the bottom of the upper platform (31), the limit boss clutch block (43) is located below the upper platform (31) and is fixed to the detection reduction box shaft (421), a clutch block tension spring connecting rod (431) is fixed on the side of the limit boss clutch block (43) facing the tension spring (46), and a pair of clutch claws (432) are formed at the bottom of the limit boss clutch block (43), and the space between the pair of clutch claws (432) is formed as a limit boss protruding into the clearance opening (4321), and the middle part of the gear plate drive shaft (44) is rotated through the shaft bearing seat (441) The lower platform (32) is supported on the lower platform (32), the upper end of the gear plate drive shaft (44) is formed with a shaft drive head (442) whose diameter is larger than the diameter of the gear plate drive shaft (44), the lower end of the gear plate drive shaft (44) extends to the bottom of the lower platform (32) and extends with a gear plate drive mating head (443) whose diameter is smaller than the diameter of the gear plate drive shaft (44), the limiting boss (45) is directly formed on the side of the shaft drive head (442) facing upward, and a limiting boss tension spring connecting rod (451) is fixed on the side of the limiting boss (45) facing the tension spring (46), and The middle part of the limiting boss (45) corresponds to the limit boss extending into the clearance opening (4321), the tension spring (46) is connected between the clutch block tension spring connecting rod (431) and the limiting boss tension spring connecting rod (451), the large transmission pulley (47) is sleeved on the shaft driving head (442), one end of the transmission belt (48) is sleeved on the small transmission pulley (49), and the other end is sleeved on the large transmission pulley (47), the small transmission pulley (49) is transmission-connected to the rotary encoder (6); the locking tooth angle correction mechanism (5) is rotationally connected to the lower end of the gear plate driving member shaft (44).

6. The locking tooth detection and correction device of the car seat recliner according to claim 3, characterized in that: The large transmission pulley (47) and the small transmission pulley (49) are synchronous pulleys, and the transmission belt (48) is a synchronous belt.

7. The locking tooth detection and correction device of the car seat recliner according to claim 5, characterized in that: A pair of rotary encoder fixing seat arms (321) extend from the front side of the lower platform (32) in a state corresponding to each other on the left and right, the space between the pair of rotary encoder fixing seat arms (321) constitutes a rotary encoder installation cavity (3211), a rotary encoder fixing seat (3212) is fixed between the upper sides of the pair of rotary encoder fixing seat arms (321), the rotary encoder (6) is located in the rotary encoder installation cavity (3211) and is fixed to the rotary encoder fixing seat (3212), the rotary encoder shaft (61) of the rotary encoder (6) extends above the rotary encoder fixing seat (3212), the signal output end (62) of the rotary encoder (6) is electrically connected to the electrical controller via a circuit, and the small transmission pulley (49) is fixed to the rotary encoder shaft (61) at a position corresponding to the upper side of the rotary encoder fixing seat (3212).

8. The locking tooth detection and correction device of the car seat recliner according to claim 5, characterized in that: A retaining spring groove (444) is formed at the lower end of the gear plate drive shaft (44) and around the circumferential direction of the gear plate drive shaft (44); the locking gear angle correction mechanism (5) comprises a correction motor (51), a correction reduction box (52), a correction drive wheel (53), a correction wheel (54), a correction wheel upper cover (55) and a pressure rod plate (56), the correction motor (51) is located on the left side of the detection reduction box (42), and the correction motor (51) is The deflection correction motor shaft is arranged on the deflection correction reduction box (52) in a downwardly oriented state and is in transmission cooperation with the deflection correction reduction box (52). The deflection correction reduction box (52) together with the deflection correction motor (51) is fixed on the upwardly oriented side of the lower platform (32). The deflection correction reduction box shaft (521) of the deflection correction reduction box (52) extends to the bottom of the lower platform (32). The deflection correction driving wheel (53) is fixed to the deflection correction reduction box shaft (521) at a position corresponding to the bottom of the lower platform (32). The deflection correction driving wheel (53) is meshed with the deflection correction wheel (54), and the deflection correction wheel (54) is rotatably mounted on the toothed plate driving member rotating shaft (44) at a position above the retaining ring groove (444) through a deflection correction wheel bearing (541) arranged at a central position thereof, and the deflection correction wheel (54) is rotatably mounted on the toothed plate driving member rotating shaft (44) at a position above the retaining ring groove (444), the deflection correction wheel upper cover (55) is arranged above the deflection correction wheel (54), the pressure rod plate (56) is located below the deflection correction wheel (54), and the deflection correction wheel upper cover (55) and the pressure rod plate (56) are fixed to the deflection correction wheel (54) by a group of fasteners arranged at intervals. The deflection correction wheel (54) and the pressure rod plate (56) are fixed as a whole, and the deflection correction wheel (54) together with the deflection correction wheel cover (55) and the pressure rod plate (56) are rotatably arranged at the lower end of the gear plate driving member shaft (44), and the lower surface of the pressure rod plate (56) is prevented from falling off by a retaining spring inserted in the retaining spring groove (444), wherein a group of gear plate pressure rods (561) are arranged at intervals around the lower surface of the pressure rod plate (56) around the pressure rod plate (56).

9. The locking tooth detection and correction device of the car seat recliner according to claim 8, characterized in that: A deflection correcting drive wheel fixing sleeve (531) protruding from the upper surface of the deflection correcting drive wheel (53) is formed at the central position of the upward side of the deflection correcting drive wheel (53), and a key groove (53111) is formed on the cavity wall of the deflection correcting drive wheel fixing sleeve cavity (5311) of the deflection correcting drive wheel fixing sleeve (531). The deflection correcting drive wheel (53) is key-connected and fixed to the deflection correcting reduction gearbox shaft (521) by the key groove (53111) on the cavity wall of the deflection correcting drive wheel fixing sleeve cavity (5311).

10. The locking tooth detection and correction device of the car seat recliner according to claim 8, characterized in that: A center hole (551) of the correcting wheel cover is provided at the center position of the correcting wheel cover (55), and a center hole (562) of the pressure rod disk is provided at the center position of the pressure rod disk (56). The center hole (551) of the correcting wheel cover, the correcting wheel bearing (541) and the center hole (562) of the pressure rod disk are concentrically connected to the rotating shaft (44) of the gear plate driving member.

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