Automatic assembly device for reset coil spring of driving shaft of automobile seat angle adjuster

Abstract

The utility model discloses an automatic assembly device for a reset coil spring of a driving shaft of an automobile seat angle adjuster, and belongs to the technical field of special assembly devices for automobile parts. Comprising a machine base, the machine base is arranged along with an automatic assembly line of the automobile seat angle adjuster, and the bottom of the machine base is supported on a terrace or a support with the terrace as a carrier; the transition frame lifting mechanism is arranged at the upper part of the machine base; the transition frame is connected with the transition frame lifting mechanism and ascends and descends along with ascending and descending of the transition frame lifting mechanism; the rotating sleeve driving mechanism is arranged on the transition frame; and the coil spring foot mounting and positioning mechanism is connected with the rotating sleeve driving mechanism at the position corresponding to the lower part of the transition frame, the coil spring foot unhooking mechanism is fixed on the right side of the lower part of the transition frame, and the coil spring foot mounting and positioning mechanism is matched with the coil spring foot unhooking mechanism. The automatic assembling device has the advantages that the automatic assembling effect on the coil spring is good; the industrial high-efficiency production requirement is met.

Description

Technical Field

[0001] This utility model belongs to the technical field of special assembly devices for automotive parts, specifically relating to an automatic assembly device for the return disc spring of the drive shaft of an automotive seat adjuster. Background Technology

[0002] Typical examples of the structure and working mechanism of the aforementioned car seat adjuster drive shaft return disc spring (hereinafter referred to as "disc spring") can be found in, but are not limited to, the "car seat adjuster" published in CN105691250A.

[0003] In existing technologies, workers manually assemble the components that make up the structural system of a car seat adjuster. Among these, the assembly of the aforementioned disc spring is particularly troublesome, specifically in the following ways: the installation work is physically demanding, as it requires considerable strength to position the two ends of the disc spring, i.e., the two disc spring feet, using tools, resulting in significant physical exertion for the assemblers; the consistency or precision of the assembly is difficult or even impossible to guarantee, as manual assembly is to some extent related to factors such as the worker's physical strength, experience, mood, and sense of responsibility; due to the low efficiency of manual assembly, it is not suitable for the requirements of industrial-scale production; and manual assembly requires the utilization of valuable human resources.

[0004] The automated production line used to assemble all components of the entire automotive seat adjuster, including the aforementioned disc spring, undoubtedly has significant advantages. Taking the automated assembly of disc springs as an example, it can at least completely eliminate the aforementioned technical problems. The technical solution described below arose in this context. Utility Model Content

[0005] The present invention aims to provide an automatic assembly device for the reset disc spring of an automotive seat adjuster drive shaft, which helps to set the disc spring onto the gear plate seat in an automated assembly manner and make the two disc spring feet engage with the spring pin and the drive component respectively, thus overcoming the shortcomings of manual assembly and being suitable for use in automated assembly lines to meet the requirements of high-efficiency industrial production.

[0006] The present invention accomplishes its objective as follows: An automatic assembly device for the reset disc spring of a car seat adjuster drive shaft includes a base, which, in use, is installed alongside an automated assembly line for car seat adjusters and is supported on the floor or a support structure using the floor as a carrier; a transition frame lifting mechanism, which is located on the upper part of the base; a transition frame, which is connected to the transition frame lifting mechanism and rises and falls with the transition frame lifting mechanism; a rotating sleeve drive mechanism, which is located on the transition frame; a disc spring foot mounting and positioning mechanism and a disc spring foot unhooking mechanism, wherein the disc spring foot mounting and positioning mechanism is connected to the rotating sleeve drive mechanism at a position corresponding to the lower part of the transition frame, and the disc spring foot unhooking mechanism is fixed to the lower right side of the transition frame, and the disc spring foot mounting and positioning mechanism cooperates with the disc spring foot unhooking mechanism.

[0007] In a specific embodiment of this utility model, a backplate fixing seat step is formed on the upper front side and upper rear side of the base, respectively, at corresponding positions. The transition frame lifting mechanism includes a backplate, a transition frame lifting motor, a transition frame lifting screw, a nut sleeve, a transition frame fixing connection seat, a transition frame fixing connection seat slider, a transition frame fixing connection seat slider guide rail, and a coupling. The backplate is arranged longitudinally, and its lower bottom is fixed to the backplate fixing seat. The front and rear ends of the backplate fixing seat are fixed to the upper part of the base at positions corresponding to the backplate fixing seat steps by fixing seat fasteners. A pair of backplates with corresponding positions are fixed on the left side of the backplate. The reinforcing wing plates are fixed at their bottoms to the upward-facing side of the backplate fixing seat. The transition frame lifting motor is fixed to the transition frame lifting motor support seat with its shaft facing downwards. The transition frame lifting motor support seat is fixed to a pair of transition frame lifting motor support seat arms, which are fixed to the upper right side of the backplate by fasteners. The shaft of the transition frame lifting motor extends below the transition frame lifting motor support seat. The upper end of the transition frame lifting screw is rotatably supported on the screw head support bearing seat, which is connected to the upper pad by the screw head support bearing seat fixing bolt. The upper pad is fixed to the right side of the back plate. The screw head at the lower end of the transition frame lifting screw is rotatably supported on the lower support bearing seat of the screw head. The lower support bearing seat of the screw head is fixed to the lower pad by the screw head lower support bearing seat fixing bolt. The lower pad is fixed to the right side of the back plate. The nut sleeve is threadedly engaged with the transition frame lifting screw. A nut sleeve flange is formed on the nut sleeve. The nut sleeve flange is fixed to the upper part of the transition frame fixed connection seat by screws. The left side of the transition frame fixed connection seat is fixed to the right side of the transition frame fixed connection seat slider. The left side of the transition frame fixed connection seat slider and corresponding to the transition frame fixed connection seat slider are also fixed. The guide rail is positioned to form a sliding groove for the slider guide rail. This sliding groove and the slider guide rail of the transition frame fixed connection seat form a sliding pair that slides up and down. The slider guide rail of the transition frame fixed connection seat is fixed to the right side of the back plate in a longitudinal state at a position corresponding to the position between the upper and lower pads. The coupling is connected to the transition frame lifting motor shaft and the screw head extending above the screw head support bearing seat at a position between the transition frame lifting motor support seat and the screw head support bearing seat. The transition frame, together with the rotating sleeve drive mechanism, the disc spring foot mounting and positioning mechanism and the disc spring foot unhooking mechanism, is fixed to the right side of the transition frame fixed connection seat.

[0008] In another specific embodiment of this utility model, the transition frame lifting motor is a servo motor with forward and reverse rotation functions.

[0009] In yet another specific embodiment of the present utility model, the transition frame includes a longitudinal frame, a horizontal bracket, and a pair of frame reinforcing arms. The longitudinal frame is in the shape of the Chinese character '曰' or '目' and is fixedly connected to the right side of the fixed connection seat of the transition frame through longitudinal frame fixing screws. The left end of the horizontal bracket is fixed to the bottom of the longitudinal frame, and the longitudinal frame and the horizontal bracket form a structure with an L-shaped longitudinal section. The pair of frame reinforcing arms correspond to each other and are each in the shape of an L. The longitudinal parts of the pair of frame reinforcing arms are fixed to the longitudinal frame by screws, and the transverse parts of the pair of frame reinforcing arms are fixed to the horizontal bracket by screws. Among them, a reduction gearbox shaft clearance hole penetrating the thickness direction of the horizontal bracket is provided in the middle area of the horizontal bracket; the swivel drive mechanism is fixed to the horizontal bracket at a position corresponding to the reduction gearbox shaft clearance hole; the disc spring foot mounting and positioning mechanism is connected to the swivel drive mechanism at a position below the reduction gearbox shaft clearance hole; the disc spring foot unhooking mechanism is fixed to the right side of the horizontal bracket.

[0010] In still another specific embodiment of the present utility model, a hydraulic cylinder seat fixing cavity is formed on the right side of the horizontal bracket; the swivel drive mechanism includes a swivel drive motor and a swivel drive reduction gearbox. The swivel drive motor is arranged with its swivel drive motor shaft facing downward and is fixed to the top of the swivel drive reduction gearbox by a swivel drive motor seat through swivel drive motor seat fixing screws. The swivel drive motor shaft is in transmission cooperation with the swivel drive reduction gearbox, and the swivel drive reduction gearbox together with the swivel drive motor is fixed on the swivel drive reduction gearbox seat plate. The swivel drive reduction gearbox seat plate is fixed to the upward side of the horizontal bracket at a position corresponding to the transverse parts of the pair of frame reinforcing arms. The swivel drive reduction gearbox shaft of the swivel drive reduction gearbox extends to the lower side of the reduction gearbox shaft clearance hole; the disc spring foot mounting and positioning mechanism is connected to the swivel drive reduction gearbox shaft at a position corresponding to the lower side of the swivel drive reduction gearbox shaft; the swivel drive motor is a servo motor with a forward and reverse rotation function; the disc spring foot unhooking mechanism is fixed to the horizontal bracket corresponding to the hydraulic cylinder seat fixing cavity.

[0011] In another specific embodiment of this utility model, the disc spring foot mounting and positioning mechanism includes a rotating sleeve, a pressure block connecting column, a reaction spring, a disc spring foot pressure block, a hook spring foot seat, and a hook spring foot. Rotating sleeve fixing screw holes are spaced apart along the circumference of the rotating sleeve, extending from the upper part to the lower part in the height direction of the rotating sleeve. A rotating sleeve fixing screw is inserted into each of these holes from bottom to top, fixing the rotating sleeve to the lower end face of the rotating sleeve drive reduction gearbox shaft. A pressure block connecting column sliding cavity is formed at the upper part of the center position of the rotating sleeve, while a pressure block connecting column clearance hole communicating with the sliding cavity is formed at the lower end. A pressure block connecting column sliding guide plate is formed at the upper end of the pressure block connecting column, and the pressure block connecting column sliding guide plate is connected to the upper and lower parts of the pressure block connecting column. The cavity wall of the sliding cavity forms a sliding pair. The lower end of the pressure block connecting column extends into the relief hole of the pressure block connecting column. The upper end of the reaction spring is supported in the gearbox spring support recess formed on the lower end face of the rotating sleeve drive gearbox shaft. The lower end of the reaction spring is supported on the pressure block connecting column sliding guide plate spring support recess formed on the center position of the pressure block connecting column sliding guide plate on the upward side. The disc spring foot pressure block is located at the bottom of the rotating sleeve and is connected to the bottom of the pressure block connecting column by the disc spring foot pressure block connecting screw at the position corresponding to the relief hole of the pressure block connecting column. The hook spring foot seat is fixed to the side of the rotating sleeve facing the disc spring foot disengagement mechanism by the hook spring foot seat fixing screw. The hook spring foot is formed by the lower end of the hook spring foot seat, and the hook spring foot cooperates or disengages with the disc spring foot disengagement mechanism.

[0012] In a further specific embodiment of this utility model, a hook spring foot inclined surface is formed on the front and rear sides in the height direction of the hook spring foot, and a coiled spring foot anti-fall skirt is formed on the front and rear sides of the lower end of the hook spring foot.

[0013] In a further specific embodiment of this utility model, the coil spring foot release mechanism includes an actuating cylinder, a release actuating element stroke limiting block, a release actuating element, and a release actuating element limiting plate. The actuating cylinder fixing seat is fixed to the right side of the horizontal bracket by actuating cylinder fixing seat screw at a position corresponding to the actuating cylinder fixing cavity. The actuating cylinder column of the actuating cylinder faces downward. The release actuating element stroke limiting block is located below the actuating cylinder and is in contact with the lower surface of the actuating cylinder fixing seat. The release actuating element stroke limiting block fixing screw is fixed at a position corresponding to the limiting block fixing screw hole preset on the horizontal bracket and is horizontal. The bracket is fixed at the bottom, and a sliding groove with an open lower part is formed on the travel limit block of the unhooking actuator. The actuating cylinder extends into the sliding groove. The upper part of the unhooking actuator slides and engages with the sliding groove and is fixed to the end of the actuating cylinder. A hook spring foot engaging groove is formed at the front of the lower right end of the unhooking actuator. The hook spring foot engages or disengages with the hook spring foot engaging groove. The unhooking actuator limiting plate is fixed to the bottom of the travel limit block of the unhooking actuator by at least a pair of limiting plate fixing screws at the position corresponding to the bottom of the sliding groove, and the upper part of the unhooking actuator is limited in the sliding groove by the unhooking actuator limiting plate.

[0014] In yet another specific embodiment of this utility model, the actuating cylinder is a pneumatic cylinder.

[0015] In yet another specific embodiment of this utility model, the unhooking member is Z-shaped.

[0016] The technical advantages of the present invention are as follows: the transition frame connected to it can be raised and lowered by the transition frame lifting mechanism, and the lifting and lowering of the transition frame can drive the rotating sleeve drive mechanism, the disc spring foot mounting and positioning mechanism, and the disc spring foot unhooking mechanism set on it as a carrier to be raised and lowered accordingly. Furthermore, the disc spring foot mounting and positioning mechanism can hook the two disc spring feet with the spring needle and the driving component respectively. Moreover, the disc spring foot unhooking mechanism can disengage the disc spring foot mounting and positioning mechanism from the disc spring feet. Therefore, the automated assembly effect of the disc spring can be well reflected, making up for the various shortcomings of manual assembly. Since it can be matched with the automated assembly line, it can meet the requirements of high-efficiency industrial production. Attached Figure Description

[0017] Figure 1 This is a structural diagram of an embodiment of the present utility model;

[0018] Figure 2 for Figure 1 The exploded three-dimensional structural diagram of the rotating sleeve drive mechanism, the disc spring foot mounting and positioning mechanism, and the disc spring foot unhooking mechanism is shown.

[0019] Figure 3 This is a schematic diagram illustrating an application example of this utility model;

[0020] Figure 4 for Figure 3 The diagram shows a car seat adjuster. Detailed Implementation

[0021] In order to better understand the technical essence and beneficial effects of this utility model, the applicant provides a detailed description below by way of embodiments. However, the description of the embodiments is not intended to limit the solution of this utility model. Any formal but not substantive equivalent transformations made based on the concept of this utility model should be considered within the scope of the technical solution of this utility model.

[0022] In the following description, all directional or positional concepts involving up, down, left, right, front, and back are based on the current position. Figure 1 The position shown is for illustrative purposes only and should not be construed as a specific limitation on the technical solution provided by this utility model.

[0023] Please see Figure 1 The diagram shows a base 1, which, in use, is installed on an automated assembly line for automotive seat adjusters and is supported on the floor. However, it can also be supported on or installed on a support (or "frame") with the floor as the carrier. A transition frame lifting mechanism 2 is shown, which is located on the upper part of the aforementioned base 1. A transition frame 3 is shown, which is connected to the aforementioned transition frame lifting mechanism 2 and rises and falls with the rise and fall of the transition frame lifting mechanism 2. A rotating sleeve drive mechanism 4 is shown, which is located on the aforementioned transition frame 3. A coil spring foot mounting and positioning mechanism 5 and a coil spring foot unhooking mechanism 6 are shown. The coil spring foot mounting and positioning mechanism 5 is connected to the aforementioned rotating sleeve drive mechanism 4 at a position corresponding to the lower part of the aforementioned transition frame 3. The coil spring foot unhooking mechanism 6 is fixed to the lower right side of the aforementioned transition frame 3, and the aforementioned coil spring foot mounting and positioning mechanism 5 cooperates with the coil spring foot unhooking mechanism 6.

[0024] Depend on Figure 1 As shown, base plate fixing holes 1211 are provided at intervals on the extended edges 121 of the base plate 12 at the front and rear sides of the base plate 12 at the lower part of the aforementioned base 1. The base is fixed to the carrier mentioned above, such as the floor of the place of use or the bracket supported on the floor, or in other similar ways, as needed by bolts (not shown) at the positions corresponding to the base plate fixing holes 1211.

[0025] Please stay tuned. Figure 1On the upper front side and upper rear side of the aforementioned base 1, a back plate fixing seat step 11 (also called a "shoulder") is formed at corresponding positions. The aforementioned transition frame lifting mechanism 2 includes a back plate 21, a transition frame lifting motor 22, a transition frame lifting screw 23, a nut sleeve 24, a transition frame fixing connecting seat 25, a transition frame fixing connecting seat slider 26, a transition frame fixing connecting seat slider guide rail 27, and a coupling 28. The back plate 21 is arranged in a longitudinal state. The lower bottom of the back plate 21 is preferably fixed to the back plate fixing seat 211 by welding or by fasteners such as screws. The front end and rear end of the back plate fixing seat 211 are respectively located at the aforementioned back plate fixing seat step 11. The steps 11 of the plate fixing seat are each fixed to the upper part of the base 1 by fixing seat fasteners 2111. A pair of corresponding back plate reinforcing wing plates 212 are preferably fixed to the left side of the back plate 21 by welding. The bottom of these back plate reinforcing wing plates 212 is also preferably fixed to the upward-facing side of the aforementioned back plate fixing seat 211 by welding. The transition frame lifting motor 22 is fixed to the transition frame lifting motor support 221 with its shaft facing downwards. The transition frame lifting motor support 221 is fixed to a pair of transition frame lifting motor support arms 2211, and these pairs of transition frame lifting motor support arms 2211 are fixed to the upper part of the base 1 by fasteners such as… Figure 1The bracket fixing screw 22111 shown is fixed to the upper right side of the aforementioned back plate 21. The aforementioned transition frame lifting motor shaft extends to the underside of the transition frame lifting motor support 221. The upper end of the transition frame lifting screw 23's screw head 231 is rotatably supported on the screw head support bearing seat 2311. The screw head support bearing seat 2311 is fixed to the upper pad 23112 by the screw head support bearing seat fixing bolt 23111, and the upper pad 23112 is fixed to the right side of the aforementioned back plate 21. The transition frame lifting... The lower end of the screw 23 is rotatably supported on the lower support bearing seat 232 of the screw head. The lower support bearing seat 232 is fixed to the lower pad 23211 by a screw head lower support bearing seat fixing bolt 2321. The lower pad 23211 is fixed to the right side of the aforementioned back plate 21. The nut sleeve 24 is threadedly engaged with the transition frame lifting screw 23. A nut sleeve flange 241 is formed on the nut sleeve 24. This nut sleeve flange 241 is fixed to the upper part of the transition frame fixing connection seat 25 by screws. The left side of the transition frame fixed connecting seat 25 is fixed to the right side of the transition frame fixed connecting seat slider 26 by welding or by fasteners such as screws. A slider guide rail sliding groove 261 is formed on the left side of the transition frame fixed connecting seat slider 26 at a position corresponding to the transition frame fixed connecting seat slider guide rail 27. This slider guide rail sliding groove 261 and the transition frame fixed connecting seat slider guide rail 27 form a sliding pair that slides up and down. The transition frame fixed connecting seat slider guide rail 27 is located corresponding to the aforementioned upper and lower pads 23112. The position between 23211 is fixed to the right side of the back plate 21 in a longitudinal state. The coupling 28 is connected to the aforementioned transition frame lifting motor shaft and the aforementioned screw head 231 extending above the aforementioned screw head support bearing seat 2311 at the position between the aforementioned transition frame lifting motor support seat 221 and the screw head support bearing seat 2311. The aforementioned transition frame 3, together with the aforementioned rotating sleeve drive mechanism 4, the disc spring foot mounting and positioning mechanism 5 and the disc spring foot unhooking mechanism 6, is fixed to the right side of the aforementioned transition frame fixed connection seat 25.

[0026] In this embodiment, the aforementioned transition frame lifting motor 22 is a servo motor with forward and reverse rotation functions. Of course, if other motors with corresponding functions are used, it should be considered that they do not exceed the protection scope of this utility model, that is, they still fall within the scope of the technical content disclosed by this utility model.

[0027] The aforementioned transition frame 3 includes a longitudinal frame 31, a horizontal bracket 32, and a pair of frame reinforcing arms 33. The longitudinal frame 31 is preferably, but not limited to, shaped like the Chinese characters for "sun" or "eye," and is fixed to the right side of the aforementioned transition frame fixing connector 25 via longitudinal frame fixing screws 311. The left end of the horizontal bracket 32 ​​is fixed to the bottom of the longitudinal frame 31. The longitudinal frame 31 and the horizontal bracket 32 ​​together form an L-shaped longitudinal section for the transition frame 3. The pair of frame reinforcing arms 33 correspond to each other and are each L-shaped. The longitudinal... The part is fixed to the longitudinal frame 31 by screws, while the transverse part of the pair of frame reinforcing arms 33 is fixed to the horizontal bracket 32 ​​by screws. A gearbox shaft clearance hole 321 is provided in the middle region of the aforementioned horizontal bracket 32, penetrating the thickness direction of the horizontal bracket 32. The aforementioned swivel drive mechanism 4 is fixed to the aforementioned horizontal bracket 32 ​​at the position corresponding to the gearbox shaft clearance hole 321. The aforementioned coil spring foot mounting and positioning mechanism 5 is connected to the swivel drive mechanism 4 at the position corresponding to the lower part of the gearbox shaft clearance hole 321. The aforementioned coil spring foot unhooking mechanism 6 is fixed to the right side of the aforementioned horizontal bracket 32.

[0028] Please see Figure 2 And combined Figure 1 A cylinder seat fixing cavity 322 is formed on the right side of the aforementioned horizontal bracket 32; the aforementioned rotating sleeve drive mechanism 4 includes a rotating sleeve drive motor 41 and a rotating sleeve drive reduction gearbox 42. The rotating sleeve drive motor 41 is arranged with its rotating sleeve drive motor shaft facing downward and is fixed to the top of the rotating sleeve drive reduction gearbox 42 by the rotating sleeve drive motor seat 411 through the rotating sleeve drive motor seat fixing screws 4111. The rotating sleeve drive motor shaft is in transmission cooperation with the rotating sleeve drive reduction gearbox 42, and the rotating sleeve drive reduction gearbox 42 together with the rotating sleeve drive motor 41 is fixed on the rotating sleeve drive reduction gearbox seat plate 421. The gearbox seat plate 421 is fixed to the upward-facing side of the horizontal bracket 32 ​​at the position corresponding to the lateral portion of the aforementioned pair of frame reinforcing arms 33. The rotating drive gearbox shaft 422 of the rotating drive gearbox 42 extends below the aforementioned gearbox shaft clearance hole 321. The aforementioned coil spring foot mounting and positioning mechanism 5 is connected to the rotating drive gearbox shaft 422 at the position corresponding to the lower part of the aforementioned rotating drive gearbox shaft 422. The aforementioned rotating drive motor 41 is a servo motor with forward and reverse rotation functions. The aforementioned coil spring foot unhooking mechanism 6 is fixed to the aforementioned horizontal bracket 32 ​​at the position corresponding to the working cylinder seat fixing cavity 322.

[0029] See you later Figure 2 And combined Figure 1The aforementioned disc spring foot mounting and positioning mechanism 5 includes a rotating sleeve 51, a pressure block connecting column 52, a reaction spring 53, a disc spring foot pressure block 54, a hook spring foot seat 55, and a hook spring foot 56. A rotating sleeve fixing screw hole 511 is provided at intervals along the circumference of the rotating sleeve 51, extending from the upper part to the lower part of the rotating sleeve 51 in the height direction. A rotating sleeve fixing screw 5111 is inserted into the rotating sleeve fixing screw hole 511 from bottom to top, and the rotating sleeve fixing screw 5111 fixes the rotating sleeve 51 to the lower end face of the aforementioned rotating sleeve drive reduction gearbox shaft 422. A pressure block connecting column sliding cavity 512 is formed at the upper part of the center position of the rotating sleeve 51, and a pressure block connecting column clearance hole 513 communicating with the pressure block connecting column sliding cavity 512 is formed at the lower end. A pressure block connecting column sliding guide plate 521 is formed at the upper end of the pressure block connecting column 52. The pressure block connecting column sliding guide plate 521 communicates with the cavity of the pressure block connecting column sliding cavity 512. The wall forms a sliding pair. The lower end of the pressure block connecting post 52 extends into the pressure block connecting post clearance hole 513. The upper end of the reaction spring 53 is supported in the gearbox spring support recess formed on the lower end face of the rotating sleeve drive gearbox shaft 422. The lower end of the reaction spring 53 is supported on the pressure block connecting post sliding guide disk spring support recess 5211 formed on the upward side of the pressure block connecting post sliding guide disk 521. The disc spring foot pressure block 54 is located at the bottom of the aforementioned rotating sleeve 51 and is connected to the bottom of the pressure block connecting post 52 by the disc spring foot pressure block connecting screw 541 at the position corresponding to the aforementioned pressure block connecting post clearance hole 513. The hook spring foot seat 55 is fixed to the side of the rotating sleeve 51 facing the aforementioned disc spring foot unhooking mechanism 6 by the hook spring foot seat fixing screw 551. The hook spring foot 56 is preferably formed by directly extending from the lower end of the hook spring foot seat 55, and the hook spring foot 56 cooperates or disengages with the disc spring foot unhooking mechanism 6.

[0030] If the hook spring foot 56 and the hook spring foot seat 55 are pre-configured as independent separate structures, and then the two are fixed together by a fixing method such as welding, then it should be regarded as an equivalent technical means and has not deviated from the technical connotation of this utility model.

[0031] See you later Figure 1 and Figure 2 A spring-loaded inclined surface 561 is formed on the front and rear sides of the aforementioned spring-loaded foot 56 in the height direction, and a coiled spring anti-fall-off skirt 562 is formed on the front and rear sides of the lower end of the spring-loaded foot 56. From the foregoing description and in conjunction with... Figure 1 and Figure 2 As shown and in conjunction with professional knowledge, the positive significance of the inclined surface 561 of the hook spring foot on the front and rear sides of the hook spring foot 56 is that: because the inclined surface 561 of the hook spring foot has a reasonable inclination angle, it can enable the spring spring foot to be inclined at a reasonable angle. Figure 3 and Figure 4The disc spring 71 of the car seat adjuster 7 shown in the diagram has detached from its spring pin hook 711. After assembly, the spring pin hook 711 will undoubtedly hook onto the disc spring. Figure 4 The spring pin 72 is shown in detail; the spring pin 72 is also called a "pin".

[0032] The aforementioned spring-loaded release mechanism 6 includes an actuating cylinder 61, a release actuating element stroke limiting block 62, a release actuating element 63, and a release actuating element limiting plate 64. The actuating cylinder fixing seat 611 of the actuating cylinder 61 is fixed to the right side of the aforementioned horizontal bracket 32 ​​at a position corresponding to the aforementioned actuating cylinder fixing cavity 322 via an actuating cylinder fixing seat screw 6111. The actuating cylinder column 612 of the actuating cylinder 61 faces downwards. The release actuating element stroke limiting block 62, corresponding to the lower part of the actuating cylinder 61 and in contact with the lower surface of the aforementioned actuating cylinder fixing seat 611, is fixed to the lower part of the horizontal bracket 32 ​​via a release actuating element stroke limiting block fixing screw 621 at a position corresponding to the limiting block fixing screw hole 323 preset on the horizontal bracket 32. During release... The hooking action stroke limiting block 62 has a groove 622 with an open lower part. The aforementioned actuating cylinder 612 extends into the groove 622. The upper part of the hooking action 63 slides and engages with the groove 622 and is fixed to the end of the actuating cylinder 612. A hook spring foot engaging groove 631 is formed in front of the lower right end of the hooking action 63. The hook spring foot 56 engages or disengages with the hook spring foot engaging groove 631. The hooking action limiting plate 64 is fixed to the bottom of the hooking action stroke limiting block 62 by at least a pair of limiting plate fixing screws 641 at the position corresponding to the bottom of the groove 622, and the upper part of the hooking action 63 is limited in the groove 622 by the hooking action limiting plate 64.

[0033] In this embodiment, the aforementioned actuating cylinder 61 is a pneumatic cylinder; the aforementioned unhooking actuating member 63 is shaped like a Z (also known as a "zigzag" shape).

[0034] Please see Figure 3 and Figure 4 , Figure 3 The diagram shows the present invention installed as part of an automated assembly line for automotive seat adjusters, and... Figure 3The diagram shows a rotary table 8, with mold bases 81 fixed at intervals around its perimeter. Preferably, a robotic arm is used to mount car seat adjusters 7 to be fitted with disc springs 71. After assembly, as the rotary table 8 rotates, the disc springs 71 of the next car seat adjuster 7 are assembled. Once the disc springs 71 are assembled on the gear plate, the process continues until the entire car seat adjuster 7 is fully assembled and the robotic arm is removed from the mold base 81. This cycle repeats. Since the structure and working mechanism of the rotary table 8 can be found in, but not limited to, CN108857406A (Refrigeration Compressor Motor Starter Assembly Device), the applicant will not elaborate further.

[0035] Applicant based on Figure 3 and Figure 4 And combined Figure 1 and Figure 2 The working principle of this utility model is described (i.e., the assembly process of the "coil spring" is described). When the rotary disk 8 rotates under the aforementioned rhythmic rotation effect, the mold base 81 on it carries the spring... Figure 4 When the detailed car seat adjuster 7 is rotated to the position corresponding to the lower part of the disc spring foot pressure block 54, the rotary table 81 stops rotating. In this state, the transition frame lifting motor 22 of the transition frame lifting mechanism 2 operates. Since the transition frame lifting motor shaft of the transition frame lifting motor 22 and the screw head 231 of the transition frame lifting screw 23 are connected by a coupling 28, the transition frame lifting motor shaft drives the screw head 231 through the coupling 28. The screw head 231 causes the transition frame lifting screw 23 to rotate, and the transition frame lifting screw 23 causes the nut sleeve 24, which is threaded with it, to move downward. As the nut sleeve 24 moves downward, it causes the transition frame fixed connecting seat 25, the transition frame fixed connecting seat slider 26, which forms a sliding pair with the transition frame fixed connecting seat slider guide rail 27, and the transition frame 3, which is fixed to the right side of the transition frame fixed connecting seat 25, to move downward together. As the transition frame 3 moves downward, it drives the rotating sleeve drive mechanism 4, the coil spring foot mounting and positioning mechanism 5, and the coil spring foot unhooking mechanism 6, all mounted on the transition frame 3, to descend simultaneously until the bottom surface of the coil spring foot pressure block 54 abuts against the PLC (Programmable Logic Controller) set by the electrical controller, according to the downward stroke. Figure 4The coil spring 71 is shown with its coil spring drive member insert 712 and the upper surface of the drive member 73. Next, the transition frame lifting motor 22 continues to operate, causing the coil spring foot pressure block 54 to descend a certain distance. At this time, the coil spring foot pressure block 54 overcomes the reaction force of the reaction spring 53 and moves upward a certain distance. The degree of this upward displacement is the degree of compression of the reaction spring 53. At this time, the hook spring foot 56 extends downward and inserts into the coil spring hook foot cavity 7111 of the coil spring needle hook foot 711. The anti-detachment skirt 562 of the hook spring foot 56 hooks the lower edge of the coil spring needle hook foot 711. Next, the rotating drive motor 41 of the rotating drive mechanism 4 rotates clockwise, causing the hook spring foot 56 to pull the coil spring needle hook foot 711 towards the spring needle 72 formed on the gear plate seat, that is, towards the hook spring foot mating groove 631 of the unhooking action member 63. At the same time, the aforementioned transition frame lifting motor 22 operates in reverse, causing the aforementioned rotating sleeve drive mechanism 4, the spring foot mounting and positioning mechanism 5, and the spring foot unhooking mechanism 6, including the spring foot pressure block 54, to rise with the transition frame 3, with the degree of rise being... Figure 4 The distance between the height of the spring needle 72 and the height of the spring needle is shown. At this time, the spring foot pressure block 54 is pushed downward under the action of the aforementioned reaction spring 53, so that the lower surface of the spring foot pressure block 54 always abuts against the aforementioned spring foot drive member insert 712 and the upper surface of the drive member 73. The spring hook foot 56 alone lifts the spring needle hook foot 711 to a state of suspension above the spring needle 72. Then, the operating cylinder 61 of the structure system of the spring needle release mechanism 6 works. The operating cylinder column 612 moves downward and extends out of the cylinder body. Through the spring hook foot mating groove 631 of the release member 63, it pushes the spring needle hook foot 711 to fall off along the aforementioned spring hook foot inclined surface 561, that is, to make the spring needle hook foot 711 fall off the spring hook foot 56, so that the aforementioned spring hook foot cavity 7111 is fitted on the spring needle 72, completing the assembly of the spring needle 71. At this point, after assembly is complete, the rotating drive motor 41 operates counterclockwise, causing the hook spring foot 56 to extend from the aforementioned hook spring foot mating groove 631, i.e., to leave the hook spring foot mating groove 631. Then, following the same working process described above, the next coil spring 71 on the mold base 81 of the rotary table 8 is assembled.

[0036] The applicant needs to explain that: due to the Figure 4 The central hole 731 of the driving component 73 is a spline hole, and the rotation of the driving component 73 is achieved by a drive shaft that mates with the spline hole 731. Therefore, the applicant defines this application as an automatic assembly device for a car seat adjuster drive shaft return disc spring. Specifically, the disc spring 71 drives the driving component 73, and the driving component 73 drives the spline shaft, which is splined and mates with its central hole 731. Since the structure and working mechanism of the aforementioned car seat adjuster can be found in patent documents such as CN105691250A mentioned above, the applicant will not elaborate further.

[0037] In summary, the technical solution provided by this utility model makes up for the shortcomings of the prior art, successfully completes the invention task, and faithfully realizes the technical effects described by the applicant in the above technical effect column.

Claims

1. An automatic assembly device for the return disc spring of a car seat adjuster drive shaft, characterized in that: Comprising a machine base (1), which is arranged along an automated assembly line of an automotive seat recliner in the usage state and is supported at the bottom by a bracket set on the floor or with the floor as the carrier; a transition frame lifting mechanism (2), which is arranged on the upper part of the said machine base (1); a transition frame (3), which is connected to the said transition frame lifting mechanism (2) and rises and falls with the lifting and falling of the transition frame lifting mechanism (2); a swivel sleeve driving mechanism (4), which is arranged on the said transition frame (3); a disc spring foot mounting and positioning mechanism (5) and a disc spring foot unhooking mechanism (6), the disc spring foot mounting and positioning mechanism (5) is connected to the said swivel sleeve driving mechanism (4) at a position corresponding to the lower part of the said transition frame (3), the disc spring foot unhooking mechanism (6) is fixed to the lower right side of the said transition frame (3), and the disc spring foot mounting and positioning mechanism (5) cooperates with the disc spring foot unhooking mechanism (6).

2. The automatic assembly device for the return disc spring of the car seat adjuster drive shaft according to claim 1, characterized in that: A backplate fixing seat step (11) is formed on the upper front side and upper rear side of the base (1) at corresponding positions; the transition frame lifting mechanism (2) includes a backplate (21), a transition frame lifting motor (22), a transition frame lifting screw (23), a nut sleeve (24), a transition frame fixing connection seat (25), a transition frame fixing connection seat slider (26), a transition frame fixing connection seat slider guide rail (27), and a coupling (28). The backplate (21) is arranged in a longitudinal state. The bottom of the lower end of the backplate (21) is fixed to the backplate fixing seat (211). The front end and rear end of the backplate fixing seat (211) are respectively secured by fixing seat fasteners (211) at positions corresponding to the backplate fixing seat step (11). 111) is fixed to the upper part of the base (1). A pair of back plate reinforcing wing plates (212) with corresponding positions are fixed on the left side of the back plate (21). The bottom of the pair of back plate reinforcing wing plates (212) is fixed to the upward side of the back plate fixing seat (211). The transition frame lifting motor (22) is fixed on the transition frame lifting motor support seat (221) with its transition frame lifting motor shaft facing downward. The transition frame lifting motor support seat (221) is fixed on a pair of transition frame lifting motor support seat arms (2211). The pair of transition frame lifting motor support seat arms (2211) are fixed to the upper right side of the back plate (21) by fasteners. The transition frame lifting motor shaft extends to the transition frame lifting motor support seat. Below (221), the upper end of the transition frame lifting screw (23) has its screw head (231) rotatably supported on the screw head support bearing seat (2311). The screw head support bearing seat (2311) is fixed to the upper pad (23112) by the screw head support bearing seat fixing bolt (23111), and the upper pad (23112) is fixed to the right side of the back plate (21). The lower end of the transition frame lifting screw (23) has its screw head rotatably supported on the screw head lower support bearing seat (232). The screw head lower support bearing seat (232) is fixed to the lower pad (23211) by the screw head lower support bearing seat fixing bolt (2321), and the lower pad (23211) is fixed to the right side of the back plate (21). The right side of the plate (21) is fixed, and the nut sleeve (24) is threadedly engaged with the transition frame lifting screw (23). A nut sleeve flange (241) is formed on the nut sleeve (24), which is fixed to the upper part of the transition frame fixed connecting seat (25) by screws. The left side of the transition frame fixed connecting seat (25) is fixed to the right side of the transition frame fixed connecting seat slider (26). A slider guide sliding mating groove (261) is formed on the left side of the transition frame fixed connecting seat slider (26) and at the position corresponding to the transition frame fixed connecting seat slider guide rail (27). The slider guide sliding mating groove (261) and the transition frame fixed connecting seat slider guide rail (27) form a sliding pair that slides up and down.The transition frame fixed connecting seat slider guide rail (27) is fixed longitudinally to the right side of the back plate (21) at a position corresponding to the upper and lower pads (23112, 23211). The coupling (28) is connected to the transition frame lifting motor shaft and the screw head (231) extending above the screw head support bearing seat (2311) at a position between the transition frame lifting motor support seat (221) and the screw head support bearing seat (2311). The transition frame (3), together with the rotating sleeve drive mechanism (4), the disc spring foot mounting and positioning mechanism (5), and the disc spring foot unhooking mechanism (6), is fixed to the right side of the transition frame fixed connecting seat (25).

3. The automatic assembly device for the return disc spring of the car seat adjuster drive shaft according to claim 2, characterized in that: The said transition frame lifting motor (22) is a servo motor with forward and reverse rotation functions.

4. The automatic assembly device for the return disc spring of the car seat adjuster drive shaft according to claim 2, characterized in that: The said transition frame (3) comprises a longitudinal frame (31), a horizontal bracket (32) and a pair of frame reinforcing arms (33), the shape of the longitudinal frame (31) is in the shape of the Chinese character '曰' or '目' and is fixedly connected to the right side of the said transition frame fixed connection seat (25) by longitudinal frame fixing screws (311), the left end of the horizontal bracket (32) is fixedly connected to the bottom of the longitudinal frame (31), and the transition frame (3) is formed into a structure with an L-shaped longitudinal section by the longitudinal frame (31) and the horizontal bracket (32), the pair of frame reinforcing arms (33) correspond to each other and each is in the shape of an L, the longitudinal parts of the pair of frame reinforcing arms (33) are fixed to the longitudinal frame (31) by screws, and the transverse parts of the pair of frame reinforcing arms (33) are fixed to the horizontal bracket (32) by screws, wherein, a reducer box shaft clearance hole (321) penetrating the thickness direction of the horizontal bracket (32) is provided in the middle area of the said horizontal bracket (32); the said swivel sleeve driving mechanism (4) is fixed to the said horizontal bracket (32) at a position corresponding to the reducer box shaft clearance hole (321); the disc spring foot mounting and positioning mechanism (5) is connected to the swivel sleeve driving mechanism (4) at a position corresponding to the lower part of the reducer box shaft clearance hole (321); the disc spring foot unhooking mechanism (6) is fixed to the right side of the said horizontal bracket (32).

5. The automatic assembly device for the return disc spring of the car seat adjuster drive shaft according to claim 4, characterized in that: A cylinder seat fixing cavity (322) is formed on the right side of the horizontal bracket (32); the rotating sleeve drive mechanism (4) includes a rotating sleeve drive motor (41) and a rotating sleeve drive reduction gearbox (42). The rotating sleeve drive motor (41) is set with its rotating sleeve drive motor shaft facing downward and is fixed to the top of the rotating sleeve drive reduction gearbox (42) by the rotating sleeve drive motor seat (411) through the rotating sleeve drive motor seat fixing screw (4111). The rotating sleeve drive motor shaft is in transmission cooperation with the rotating sleeve drive reduction gearbox (42) and the rotating sleeve drive reduction gearbox (42) together with the rotating sleeve drive motor (41) is fixed on the rotating sleeve drive reduction gearbox seat plate (421). The housing plate (421) is fixed to the side of the horizontal bracket (32) facing upwards at the position between the transverse portions corresponding to the pair of frame reinforcing arms (33). The rotating drive gearbox shaft (422) of the rotating drive gearbox (42) extends below the gearbox shaft clearance hole (321). The coil spring foot mounting and positioning mechanism (5) is connected to the rotating drive gearbox shaft (422) at the position corresponding to the lower part of the rotating drive gearbox shaft (422). The rotating drive motor (41) is a servo motor with forward and reverse rotation functions. The coil spring foot unhooking mechanism (6) is fixed to the horizontal bracket (32) at the position corresponding to the working cylinder seat fixing cavity (322).

6. The automatic assembly device for the return disc spring of the car seat adjuster drive shaft according to claim 5, characterized in that: The aforementioned coil spring foot mounting and positioning mechanism (5) includes a rotating sleeve (51), a pressure block connecting column (52), a reaction spring (53), a coil spring foot pressure block (54), a hook spring foot seat (55), and a hook spring foot (56). A rotating sleeve fixing screw hole (511) is provided at intervals along the circumference of the rotating sleeve (51), extending from the upper part to the lower part of the rotating sleeve (51) in the height direction. A rotating sleeve fixing screw (5111) is inserted from bottom to top into the rotating sleeve fixing screw hole (511). The rotating sleeve (51) is fixed to the lower end face of the rotating sleeve drive reduction gearbox shaft (422). A sliding cavity (512) for the upper part of the rotating sleeve (51) is formed at the center position. A relief hole (513) for the pressure block connecting column is formed at the lower end, which communicates with the sliding cavity (512). A sliding guide plate (521) for the pressure block connecting column (52) is formed at the upper end of the pressure block connecting column (52). The sliding guide plate (521) for the pressure block connecting column communicates with the sliding cavity (512). The cavity wall of 12) forms a sliding pair. The lower end of the pressure block connecting column (52) extends into the pressure block connecting column relief hole (513). The upper end of the reaction spring (53) is supported in the gearbox spring support recess formed on the lower end face of the rotating drive gearbox shaft (422). The lower end of the reaction spring (53) is supported on the pressure block connecting column sliding guide plate spring support recess (5211) formed on the center position of the upward-facing side of the pressure block connecting column sliding guide plate (521). The disc spring foot pressure block (54) is located at The bottom of the rotating sleeve (51) is connected to the bottom of the pressure block connecting post (52) by the spring foot pressure block connecting screw (541) at the position corresponding to the pressure block connecting post clearance hole (513). The hook spring foot seat (55) is fixed to the rotating sleeve (51) on the side facing the spring foot unhooking mechanism (6) by the hook spring foot seat fixing screw (551). The hook spring foot (56) is formed by extending from the lower end of the hook spring foot seat (55), and the hook spring foot (56) cooperates with or disengages from the spring foot unhooking mechanism (6).

7. The automatic assembly device for the return disc spring of the car seat adjuster drive shaft according to claim 6, characterized in that: A spring-loaded inclined surface (561) is formed on the front and rear sides in the height direction of the spring-loaded foot (56), and a spring-loaded anti-fall skirt (562) is formed on the front and rear sides of the lower end of the spring-loaded foot (56).

8. The automatic assembly device for the return disc spring of the car seat adjuster drive shaft according to claim 6, characterized in that: The aforementioned spring-loaded release mechanism (6) includes an actuating cylinder (61), a release action stroke limiting block (62), a release action (63), and a release action limiting plate (64). The actuating cylinder fixing seat (611) of the actuating cylinder (61) is fixed to the right side of the horizontal bracket (32) by an actuating cylinder fixing seat screw (6111) at a position corresponding to the actuating cylinder fixing cavity (322). The actuating cylinder column (612) of the actuating cylinder (61) faces downward. The release action stroke limiting block (62) is located below the actuating cylinder (61) and is in contact with the lower surface of the actuating cylinder fixing seat (611) by a release action stroke limiting block fixing screw (621) at a position corresponding to the limiting block fixing screw hole (323) preset on the horizontal bracket (32). The unhooking action stroke limiting block (62) has a groove (622) with an open lower part. The actuating cylinder (612) extends into the groove (622). The upper part of the unhooking action (63) slides and engages with the groove (622) and is fixed to the end of the actuating cylinder (612). A hook spring foot engaging groove (631) is formed in front of the lower right end of the unhooking action (63). The hook spring foot (56) engages or disengages with the hook spring foot engaging groove (631). The unhooking action limiting plate (64) is fixed to the bottom of the unhooking action stroke limiting block (62) by at least a pair of limiting plate fixing screws (641) at the position corresponding to the bottom of the groove (622). The unhooking action limiting plate (64) limits the upper part of the unhooking action (63) in the groove (622).

9. The automatic assembly device for the return disc spring of the car seat adjuster drive shaft according to claim 8, characterized in that: The working cylinder (61) is a pneumatic cylinder.

10. The automatic assembly device for the return disc spring of the car seat adjuster drive shaft according to claim 8, characterized in that: The unhooking component (63) is shaped like a Z.

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