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

Abstract

The invention 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] The invention belongs to the technical field of special assembly devices for automobile parts, and in particular relates to an automatic assembly device for a reset coil spring of a driving shaft of an automobile seat recliner. Background Art

[0002] Typical examples of the structure and action mechanism of the aforementioned automobile seat recliner drive shaft return coil spring (hereinafter referred to as "coil spring") can be found in, but not limited to, the "Automobile Seat Recliner" published in CN105691250A.

[0003] In the prior art, workers manually assemble the components constituting the structural system of the car seat recliner, among which the assembly of the aforementioned coil spring is relatively troublesome, which is specifically manifested in the following aspects: the installation work is intensive, because it requires sufficient strength to position the two ends of the coil spring, i.e., the two coil spring legs, with the help of tools, and the assemblers consume a lot of physical energy; the consistency or accuracy of the assembly is difficult or even impossible to guarantee, because manual assembly is to a certain extent related to factors such as the worker's physical fitness, experience, emotions and sense of responsibility; due to the low efficiency of manual assembly, it is not suitable for industrialized production requirements; manual assembly requires the use of valuable human resources.

[0004] The mode of assembling all the components of the entire car seat recliner, including the aforementioned coil spring, by using an automated production line is undoubtedly of great positive significance. Taking the automated assembly of coil springs as an example, it can at least completely eliminate the aforementioned technical problems. The technical solution to be introduced below is produced under this background. Summary of the invention

[0005] The task of the present invention is to provide an automatic assembly device for the reset coil spring of the driving shaft of the car seat recliner, which helps to set the coil spring to the gear disc seat in an automated assembly manner and makes the two coil spring feet respectively engage with the spring needle and the driving member to make up for the shortcomings of manual assembly, and is conducive to matching with the automated assembly line to meet the requirements of industrialized high-efficiency production.

[0006] The task of the present invention is accomplished in this way. An automatic assembly device for a reset coil spring of a car seat recliner drive shaft includes a machine base, which is arranged along with the automatic assembly line of the car seat recliner in the use state and the bottom is supported on the floor or on a bracket arranged with the floor as a carrier; a transition frame lifting mechanism, which is arranged on the upper part of the machine base; a transition frame, which is connected to the transition frame lifting mechanism and rises and falls with the lifting and lowering of the transition frame lifting mechanism; a rotating sleeve driving mechanism, which is arranged on the transition frame; a coil spring foot installation and positioning mechanism and a coil spring foot unhooking mechanism, the coil spring foot installation and positioning mechanism is connected to the rotating sleeve driving mechanism at a position corresponding to the bottom of the transition frame, the coil spring foot unhooking mechanism is fixed to the lower right side of the transition frame, and the coil spring foot installation and positioning mechanism cooperates with the coil spring foot unhooking mechanism.

[0007] In a specific embodiment of the present invention, a back plate fixing seat step is formed on the upper front side and the upper rear side of the machine base and at positions corresponding to each other; the transition frame lifting mechanism includes a back plate, a transition frame lifting motor, a transition frame lifting screw, a nut sleeve, a transition frame fixed connecting seat, a transition frame fixed connecting seat slider, a transition frame fixed connecting seat slider guide rail and a coupling, the back plate is arranged in a longitudinal state, the lower bottom of the back plate is fixed to the back plate fixing seat, the front end and the rear end of the back plate fixing seat are fixed to the upper part of the machine base at positions corresponding to the back plate fixing seat steps by fixing seat fasteners, and a pair of back plate reinforcements corresponding to each other are fixed on the left side of the back plate The wing plate, the bottom of the pair of back plate reinforcing wing plates is fixed to the side of the back plate fixing seat facing upward, the transition frame lifting motor is fixed on the transition frame lifting motor support seat with its transition frame lifting motor shaft facing downward, the transition frame lifting motor support seat is fixed on a pair of transition frame lifting motor support seat brackets, and the pair of transition frame lifting motor support seat brackets are fixed to the upper right side of the back plate through fasteners, the transition frame lifting motor shaft extends to the bottom of the transition frame lifting motor support seat, the screw head at the upper end of the transition frame lifting screw is rotatably supported on the supporting bearing seat on the screw head, and the supporting bearing seat on the screw head is fixed to the upper pad through the supporting bearing seat fixing bolts on the screw head. The cam is fixed to the right side of the back plate, and the screw head at the lower end of the transition frame lifting screw is rotatably supported on the screw head lower supporting bearing seat, and the screw head lower supporting bearing seat is fixed to the lower pad by the screw head lower supporting bearing seat fixing bolt, and the lower pad is fixed to the right side of the back plate, the nut sleeve cooperates with the transition frame lifting screw thread, and a nut sleeve flange edge is formed on the nut sleeve, and the nut sleeve flange edge is fixed to the upper part of the transition frame fixed connecting seat by screws, and the left side of the transition frame fixed connecting seat is fixed to the right side of the transition frame fixed connecting seat slider, on the left side of the transition frame fixed connecting seat slider and corresponding to the transition frame fixed connecting seat slider The guide rail is formed with a slider guide sliding matching groove, and the slider guide sliding matching groove and the transition frame fixed connection seat slider guide rail form a sliding pair that slides up and down. The transition frame fixed connection seat slider guide rail is fixed to the right side of the back plate in a longitudinal state at a position corresponding to between the upper and lower pads, and the coupling is connected to the transition frame lifting motor shaft and the screw head extending above the supporting bearing seat on the screw head 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 driving mechanism, the coil spring foot installation positioning mechanism and the coil spring foot unhooking mechanism are fixed to the right side of the transition frame fixed connection seat.

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

[0009] In another specific embodiment of the present invention, the transition frame includes a longitudinal frame, a horizontal bracket and a pair of frame reinforcement arms. The longitudinal frame is shaped like a Chinese character "曰" or "目" and is fixed to the right side surface of the transition frame fixed connection seat by the 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 transition frame with an L-shaped longitudinal cross-section. The pair of frame reinforcement arms correspond to each other and are each L-shaped. The longitudinal parts of the pair of frame reinforcement arms are fixed to the longitudinal frame by screws, and the transverse parts of the pair of frame reinforcement arms are fixed to the horizontal bracket by screws, wherein a reduction gear shaft clearance hole is provided in the middle area of ​​the horizontal bracket and passes through the thickness direction of the horizontal bracket; the rotating sleeve drive mechanism is fixed to the horizontal bracket at a position corresponding to the reduction gear shaft clearance hole; the coil spring foot installation and positioning mechanism is connected to the rotating sleeve drive mechanism at a position corresponding to the position below the reduction gear shaft clearance hole; the coil spring foot unhooking mechanism is fixed to the right side of the horizontal bracket.

[0010] In another specific embodiment of the present invention, a working cylinder seat fixing cavity is formed on the right side of the horizontal bracket; the rotating sleeve driving mechanism includes a rotating sleeve driving motor and a rotating sleeve driving reduction box, the rotating sleeve driving motor is arranged with its rotating sleeve driving motor shaft facing downward and is fixed to the top of the rotating sleeve driving reduction box by the rotating sleeve driving motor seat through the rotating sleeve driving motor seat fixing screws, the rotating sleeve driving motor shaft and the rotating sleeve driving reduction box are transmission-coordinated and the rotating sleeve driving reduction box is fixed to the rotating sleeve driving reduction box seat plate together with the rotating sleeve driving motor, the rotating sleeve driving reduction box seat plate is fixed to the upward side of the horizontal bracket at a position corresponding to the lateral parts between the pair of frame reinforcement arms, and the rotating sleeve driving reduction box shaft of the rotating sleeve driving reduction box extends to the bottom of the reduction box shaft clearance hole; the coil spring foot installation and positioning mechanism is connected to the rotating sleeve driving reduction box shaft at a position corresponding to the bottom of the rotating sleeve driving reduction box shaft; the rotating sleeve driving motor is a servo motor with forward and reverse functions; the coil spring foot unhooking mechanism is fixed to the horizontal bracket at the position corresponding to the working cylinder seat fixing cavity.

[0011] In another specific embodiment of the present invention, the disc spring foot installation 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 in the circumferential direction of the rotating sleeve and pass from the upper part of the rotating sleeve in the height direction to the lower part. A rotating sleeve fixing screw is inserted from bottom to top in the rotating sleeve fixing screw hole, and the rotating sleeve is fixed to the lower end surface of the rotating sleeve driving reduction box shaft by the rotating sleeve fixing screw. A pressure block connecting column up and down sliding cavity is formed at the upper part of the central position of the rotating sleeve, and a pressure block connecting column yield hole communicating with the pressure block connecting column up and down 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 slides up and down with the pressure block connecting column The cavity wall of the dynamic cavity constitutes a sliding pair, the lower end of the pressure block connecting column extends into the pressure block connecting column yield hole, the upper end of the reaction spring is supported in the reduction box spring supporting pit formed on the lower end face of the rotating sleeve driving reduction box shaft, and the lower end of the reaction spring is supported on the pressure block connecting column sliding guide disk spring supporting pit formed on the central position of the side of the upward side of the sliding guide disk of the pressure block connecting column. The coil 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 coil spring foot pressure block connecting screw at the position corresponding to the pressure block connecting column yield hole, the hook spring foot seat is fixed to the side of the rotating sleeve toward the coil spring foot unhooking mechanism by the hook spring foot seat fixing screw, the hook spring foot is formed by the lower end extension of the hook spring foot seat, and the hook spring foot cooperates or disengages with the coil spring foot unhooking mechanism.

[0012] In a further specific embodiment of the present invention, a hook spring foot inclined surface is formed on the front and rear side surfaces in the height direction of the hook spring foot, and a coil spring foot anti-falling 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 the present invention, the disc spring foot unhooking mechanism includes an operating cylinder, an unhooking operating member stroke limit block, an unhooking operating member and an unhooking member limiting plate, the operating cylinder fixing seat of the operating cylinder is fixed to the right side of the horizontal bracket by an operating cylinder fixing seat screw at a position corresponding to the operating cylinder fixing cavity, the operating cylinder column of the operating cylinder faces downward, the unhooking operating member stroke limit block corresponds to the bottom of the operating cylinder and is fixed to the horizontal bracket by the unhooking operating member stroke limit block fixing screw at a position corresponding to the limit block fixing screw hole preset on the horizontal bracket in a state of being in contact with the lower surface of the operating cylinder fixing seat. The frame is fixed at the bottom, and a slide groove with an open lower portion is formed on the stroke limit block of the unhooking action member, and the action cylinder column extends into the slide groove, and the upper portion of the unhooking action member is slidably matched with the slide groove and fixed to the end of the action cylinder column, and a hook spring foot matching groove is formed in front of the lower right end of the unhooking action member, and the hook spring foot is matched or released with the hook spring foot matching groove, and the unhooking member limiting plate is fixed to the bottom of the unhooking action member stroke limit block at a position corresponding to the bottom of the slide groove by at least a pair of limiting plate fixing screws, and the upper portion of the unhooking action member is limited in the slide groove by the unhooking member limiting plate.

[0014] In yet another specific embodiment of the present invention, the working cylinder is a gas cylinder.

[0015] In yet another specific embodiment of the present invention, the unhooking cylinder is in a Z-shape.

[0016] The technical effect of the technical solution provided by the present invention is that the transition frame connected to it can be driven to rise and fall by the transition frame lifting mechanism, and the lifting of the transition frame drives the rotating sleeve driving mechanism, the coil spring foot installation and positioning mechanism and the coil spring foot unhooking mechanism arranged with it as a carrier to rise and fall accordingly, and the two coil spring feet of the coil spring can be respectively hooked with the spring needle and the driving member by the coil spring foot installation and positioning mechanism, and the coil spring foot unhooking mechanism can be used to disengage the coil spring foot installation and positioning mechanism from the coil spring foot, thereby being able to well reflect the automated assembly effect of the coil spring and make up for various deficiencies of manual assembly; and because it can be matched with an automated assembly line, it can adapt to the requirements of industrialized high-efficiency production. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of an embodiment of the present invention; Figure 2 for Figure 1 The three-dimensional exploded structure diagram of the rotating sleeve driving mechanism, the coil spring foot installation and positioning mechanism and the coil spring foot unhooking mechanism shown; Figure 3 It is a schematic diagram of an application example of the present invention; Figure 4 for Figure 3Schematic diagram of a car seat recliner shown. DETAILED DESCRIPTION

[0018] In order to more clearly understand the technical essence and beneficial effects of the present invention, the applicant provides a detailed description in the form of embodiments below. However, the description of the embodiments is not a limitation of the present invention. Any equivalent changes made based on the concept of the present invention that are merely formal and not substantial should be regarded as within the scope of the technical solution of the present invention.

[0019] In the following description, all concepts related to up, down, left, right, front and back directions or orientations are based on the current Figure 1 The position states shown are for example only and should not be understood as a special limitation on the technical solution provided by the present invention.

[0020] See also Figure 1 , showing a machine base 1, which is arranged in an automated assembly line for car seat recliners in use and has its bottom supported on the floor, but can also be supported on or arranged on a bracket (also called a "frame") arranged with the floor as a carrier; showing a transition frame lifting mechanism 2, which is arranged on the upper part of the aforementioned machine base 1; showing a transition frame 3, 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; showing a rotating sleeve driving mechanism 4, which is arranged on the aforementioned transition frame 3; showing a coil spring foot installation and positioning mechanism 5 and a coil spring foot unhooking mechanism 6, the coil spring foot installation and positioning mechanism 5 is connected to the aforementioned rotating sleeve driving 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 installation and positioning mechanism 5 cooperates with the coil spring foot unhooking mechanism 6.

[0021] Depend on Figure 1 As shown, base plate fixing holes 1211 are provided at intervals on the front and rear extended edges 121 of the base bottom plate 12 at the lower part of the aforementioned base 1, and the base is fixed to the above-mentioned carrier such as the floor of the place of use or a bracket supported on the floor at positions corresponding to the base plate fixing holes 1211 by bolts not shown in the figure, as required, or fixed in other similar ways.

[0022] Please continue to see Figure 1, a back plate fixing seat step 11 (also called "shoulder") is formed at the upper front side and the upper rear side of the aforementioned machine base 1 and 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 fixed connection seat 25, a transition frame fixed connection seat slider 26, a transition frame fixed connection seat slider guide rail 27 and a coupling 28, the back plate 21 is arranged in a longitudinal state, and the lower end bottom of the back plate 21 is preferably fixed to the back plate fixing seat 211 by welding or by fasteners such as screws, and the front and rear ends of the back plate fixing seat 211 correspond to the aforementioned back plate. The positions of the plate fixing seat steps 11 are fixed to the upper part of the machine base 1 by fixing seat fasteners 2111, and a pair of back plate reinforcement wing plates 212 corresponding to each other are preferably fixed on the left side of the back plate 21 by welding, and the bottom of the pair of back plate reinforcement wing plates 212 is also preferably fixed to the upper side of the aforementioned back plate fixing seat 211 by welding, and the transition frame lifting motor 22 is fixed to the transition frame lifting motor support seat 221 with its transition frame lifting motor shaft facing downward, and the transition frame lifting motor support seat 221 is fixed to a pair of transition frame lifting motor support seat brackets 2211, and the pair of transition frame lifting motor support seat brackets 2211 are fixed by fasteners such as Figure 1The bracket fixing screw 22111 shown is fixed to the upper right side of the back plate 21, the transition frame lifting motor shaft extends to the bottom of the transition frame lifting motor support seat 221, the screw head 231 at the upper end of the transition frame lifting screw 23 is rotatably supported on the supporting bearing seat 2311 on the screw head, the supporting bearing seat 2311 on the screw head is fixed to the upper pad 23112 through the supporting bearing seat fixing bolt 23111 on the screw head, and the upper pad 23112 is fixed to the right side of the back plate 21, and the transition frame lifting The screw head at the lower end of the screw rod 23 is rotatably supported on the screw head lower support bearing seat 232, and the screw head lower support bearing seat 232 is fixed to the lower pad 23211 through the screw head lower support bearing seat fixing bolt 2321, and the lower pad 23211 is fixed to the right side of the aforementioned back plate 21, and the nut sleeve 24 is threadedly matched with the transition frame lifting screw rod 23, and a nut sleeve flange edge 241 is formed on the nut sleeve 24, and the nut sleeve flange edge 241 is fixed to the upper part of the transition frame fixed connection seat 25 through screws, and the The left side of the transition frame fixed connection seat 25 is fixed to the right side surface of the transition frame fixed connection seat slider 26 by welding or by fasteners such as screws. A slider guide rail sliding matching groove 261 is formed on the left side of the transition frame fixed connection seat slider 26 and at a position corresponding to the transition frame fixed connection seat slider guide rail 27. The slider guide rail sliding matching groove 261 and the transition frame fixed connection seat slider guide rail 27 form a sliding pair that slides up and down. The transition frame fixed connection seat slider guide rail 27 corresponds to the upper and lower pads 23112, The position between 23211 is fixed to the right side surface of the back plate 21 in a longitudinal state, and 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 supporting bearing seat 2311 at a position between the aforementioned transition frame lifting motor support seat 221 and the aforementioned screw head supporting bearing seat 2311; the aforementioned transition frame 3 together with the aforementioned rotating sleeve driving mechanism 4, the coil spring foot installation positioning mechanism 5 and the coil spring foot unhooking mechanism 6 are fixed to the right side surface of the aforementioned transition frame fixed connection seat 25.

[0023] In this embodiment, the aforementioned transition rack 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 it does not exceed the protection scope of the present invention, that is, it still belongs to the technical connotation scope disclosed by the present invention.

[0024] The aforementioned transition frame 3 includes a longitudinal frame 31, a horizontal bracket 32 ​​and a pair of frame reinforcement arms 33. The shape of the longitudinal frame 31 is preferably, but not limited to, in the shape of a Chinese character "曰" or "目" and is fixed to the right side of the aforementioned transition frame fixed connection seat 25 by a longitudinal frame fixing screw 311. The left end of the horizontal bracket 32 ​​is fixed to the bottom of the longitudinal frame 31, and the longitudinal frame 31 and the horizontal bracket 32 ​​form a transition frame 3 with an L-shaped longitudinal section. The pair of frame reinforcement arms 33 correspond to each other and are each L-shaped. The longitudinal cross-sectional shape of the pair of frame reinforcement arms 33 is L-shaped. The part is fixed to the longitudinal frame 31 by screws, and the lateral part of a pair of frame reinforcement arms 33 is fixed to the horizontal bracket 32 ​​by screws, wherein a reduction gear shaft clearance hole 321 is opened in the middle area of ​​the horizontal bracket 32 ​​and passes through the thickness direction of the horizontal bracket 32; the aforementioned swivel sleeve drive mechanism 4 is fixed to the aforementioned horizontal bracket 32 ​​at a position corresponding to the reduction gear shaft clearance hole 321; the aforementioned coil spring foot installation and positioning mechanism 5 is connected to the swivel sleeve drive mechanism 4 at a position corresponding to the lower part of the reduction gear shaft clearance hole 321; the aforementioned coil spring foot unhooking mechanism 6 is fixed to the right side of the aforementioned horizontal bracket 32.

[0025] See also Figure 2 And combined with Figure 1 , a cylinder seat fixing chamber 322 is formed on the right side of the aforementioned horizontal bracket 32; the aforementioned swivel drive mechanism 4 includes a swivel drive motor 41 and a swivel drive reduction box 42, the swivel drive motor 41 is arranged with its swivel drive motor shaft facing downward and is fixed to the top of the swivel drive reduction box 42 by the swivel drive motor seat 411 through the swivel drive motor seat fixing screws 4111, the swivel drive motor shaft is in transmission cooperation with the swivel drive reduction box 42 and is fixed to the swivel drive reduction box seat plate 421 together with the swivel drive motor 41. The gear box seat plate 421 is fixed to the upward side of the horizontal bracket 32 ​​at a position corresponding to the lateral parts of the aforementioned pair of frame reinforcement arms 33, and the swivel sleeve drive reducer shaft 422 of the swivel sleeve drive reducer 42 extends to the bottom of the aforementioned reducer shaft clearance hole 321; the aforementioned coil spring foot installation positioning mechanism 5 is connected to the swivel sleeve drive reducer shaft 422 at a position corresponding to the bottom of the aforementioned swivel sleeve drive reducer shaft 422; the aforementioned swivel sleeve 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 a position corresponding to the fixing cavity 322 of the working cylinder seat.

[0026] See you next time Figure 2 And combined with Figure 1The aforementioned coil spring foot installation 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. Rotating sleeve fixing screw holes 511 are spaced apart in the circumferential direction of the rotating sleeve 51 and pass through from the upper part to the lower part in the height direction of the rotating sleeve 51. Rotating sleeve fixing screws 5111 are inserted from bottom to top in the rotating sleeve fixing screw holes 511. The rotating sleeve 51 is fixed to the lower end surface of the aforementioned rotating sleeve driving reduction box shaft 422 by the rotating sleeve fixing screws 5111. A pressure block connecting column up and down sliding cavity 512 is formed at the upper part of the central position of the rotating sleeve 51, and a pressure block connecting column yielding hole 513 communicating with the pressure block connecting column up and down 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 and the cavity of the pressure block connecting column up and down sliding cavity 512 are connected. The wall forms a sliding pair, the lower end of the pressure block connecting column 52 penetrates into the pressure block connecting column yield hole 513, the upper end of the reaction spring 53 is supported in the reduction box spring supporting pit formed on the lower end face of the rotating sleeve driving reduction box shaft 422, and the lower end of the reaction spring 53 is supported on the pressure block connecting column sliding guide disk spring supporting pit 5211 formed in the central position of the upward side of the pressure block connecting column sliding guide disk 521, the coil 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 column 52 by the coil spring foot pressure block connecting screw 541 at the position corresponding to the aforementioned pressure block connecting column yield hole 513, the hook spring foot seat 55 is fixed to the side of the rotating sleeve 51 toward the aforementioned coil spring foot unhooking mechanism 6 by the hook spring foot seat fixing screw 551, the hook spring foot 56 is preferably directly extended from the lower end of the hook spring foot seat 55, and the hook spring foot 56 cooperates or disengages with the coil spring foot unhooking mechanism 6.

[0027] If the hook spring foot 56 and the hook spring foot seat 55 are pre-constructed as independent split 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 does not deviate from the technical connotation scope disclosed in the present invention.

[0028] See you next time Figure 1 and Figure 2 A hook spring foot inclined surface 561 is formed on the front and rear sides of the height direction of the hook spring foot 56, and a coil spring foot anti-falling skirt 562 is formed on the front and rear sides of the lower end of the hook spring foot 56. Figure 1 and Figure 2 As shown in FIG. 1 and combined with professional common sense, the positive significance of the hook spring foot inclined surface 561 formed on the front and rear sides of the hook spring foot 56 is that: since the hook spring foot inclined surface 561 has a reasonable inclination angle, it can make the hook spring foot Figure 3 and Figure 4The coil spring pin hook 711 of the coil spring 71 of the structural system of the car seat recliner 7 shown in the figure falls off. After the assembly is completed, the coil spring pin hook 711 is undoubtedly hooked on the Figure 4 The spring pin 72 shown in detail is also called a "pin".

[0029] The aforementioned disc spring foot unhooking mechanism 6 includes an operating cylinder 61, an unhooking operating member stroke limit block 62, an unhooking operating member 63 and an unhooking member limiting plate 64, the operating cylinder fixing seat 611 of the operating cylinder 61 is fixed to the right side of the aforementioned horizontal bracket 32 ​​at a position corresponding to the aforementioned operating cylinder seat fixing cavity 322 by an operating cylinder fixing seat screw 6111, the operating cylinder column 612 of the operating cylinder 61 faces downward, the unhooking operating member stroke limit block 62 corresponds to the bottom of the operating cylinder 61 and is fixed to the bottom of the horizontal bracket 32 ​​by an unhooking operating member stroke limit block fixing screw 621 at a position corresponding to the limit block fixing screw hole 323 preset on the horizontal bracket 32 ​​in a state of being in contact with the lower surface of the aforementioned operating cylinder fixing seat 611, A slide groove 622 with an open lower portion is formed on the stroke limit block 62 of the hooking member, and the aforementioned acting cylinder column 612 extends into the slide groove 622. The upper portion of the unhooking member 63 is slidably matched with the aforementioned slide groove 622 and is fixed to the end of the aforementioned acting cylinder column 612 in an up-and-down manner. A hook spring foot matching groove 631 is formed in front of the lower right end of the unhooking member 63, and the aforementioned hook spring foot 56 is matched or released with the hook spring foot matching groove 631. The unhooking member limiting plate 64 is fixed to the bottom of the unhooking member stroke limit block 62 at a position corresponding to the bottom of the aforementioned slide groove 622 by at least a pair of limiting plate fixing screws 641, and the upper portion of the unhooking member 63 is limited in the aforementioned slide groove 622 by the unhooking member limiting plate 64.

[0030] In the present embodiment, the aforementioned action cylinder 61 is an air cylinder; the aforementioned hook-off action cylinder 63 is in a Z-shape (also called a zigzag shape).

[0031] See also Figure 3 and Figure 4 , Figure 3 The present invention is shown as a situation where the automatic assembly line of the car seat recliner is set up, and Figure 3A rotating disk 8 is shown in the figure, and a mold base 81 is arranged (fixed) at intervals on the edges of the rotating disk 8. The automobile seat recliner 7 to be assembled with a coil spring 71 is preferably provided on the mold base 81 by a manipulator. After the assembly is completed, the coil spring 71 of the next automobile seat recliner 7 is assembled with the rotation of the rotating disk 8, and the next process is entered after the assembly of the coil spring 71 on the gear disk seat is completed, until the entire automobile seat recliner 7 is fully assembled and the manipulator is removed from the mold base 81, and the cycle is repeated. Since the structural form and working mechanism of the aforementioned rotating disk 8 can be referred to but not limited to CN108857406A (refrigeration compressor motor starter assembly device), the applicant will not elaborate on it.

[0032] Applicant's basis Figure 3 and Figure 4 And combined with Figure 1 and Figure 2 Describing the working principle of the present invention (i.e. describing the assembly process of the "coil spring"), when the rotary disk 8 rotates under the aforementioned rhythmic rotation effect, the mold base 81 thereon carries the Figure 4 When the detailed automobile seat recliner 7 rotates to the position corresponding to the coil spring foot pressure block 54, the rotating disk 81 stops rotating. In this state, the transition frame lifting motor 22 of the transition frame lifting mechanism 2 works. 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 the coupling 28, the transition frame lifting motor shaft drives the screw head 231 through the coupling 28, and the screw head 231 rotates the transition frame lifting screw 23, and the transition frame lifting screw 23 causes the nut sleeve 24 threadedly matched with it to move downward. As the nut sleeve 24 moves downward, the transition frame fixed connection seat 25, the transition frame fixed connection seat slider 26 that forms a sliding pair with the transition frame fixed connection seat slider guide rail 27, and the transition frame 3 fixed to the right side of the transition frame fixed connection seat 25 are moved downward together. As the transition frame 3 moves downward, the transition frame 3 drives the rotating sleeve driving mechanism 4, the coil spring foot installation positioning mechanism 5 and the coil spring foot hook release mechanism 6 which are provided with the transition frame 3 as a carrier to descend simultaneously, until the bottom surface of the coil spring foot pressure block 54 is abutted against the bottom surface of the coil spring foot pressure block 54 according to the descending stroke set by the PLC (programmable logic controller) of the electrical controller. Figure 4The coil spring driving member inserting foot 712 of the coil spring 71 and the upper surface of the driving member 73 are shown. Then, the transition frame lifting motor 22 continues to work and the coil spring foot pressure block 54 is lowered by 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 by a certain distance. The degree of upward displacement is the degree of compression of the reaction spring 53. At this time, the hook spring foot 56 extends downward into the coil spring foot cavity 7111 of the coil spring needle hook foot 711, and the coil spring foot anti-falling skirt 562 of the hook spring foot 56 hooks the lower edge of the coil spring needle hook foot 711. Then, the rotating sleeve driving motor 41 of the structural system of the rotating sleeve driving mechanism 4 rotates clockwise, so that the hook spring foot 56 pulls the coil spring needle hook foot 711 to move closer to the direction of the spring needle 72 formed on the toothed disc seat, that is, to the direction of the hook spring foot matching groove 631 of the hook-off action member 63. At the same time, the aforementioned transition frame lifting motor 22 works in the reverse direction, so that the aforementioned rotating sleeve driving mechanism 4 including the coil spring foot pressure block 54, the coil spring foot installation positioning mechanism 5 and the coil spring foot unhooking mechanism 6 rise with the transition frame 3, and the rising degree is Figure 4 The height of the spring needle 72 is shown, and the coil spring foot pressure block 54 is pushed downward under the action of the aforementioned reaction spring 53, so that the lower surface of the coil spring foot pressure block 54 always abuts against the aforementioned coil spring foot driving member embedded foot 712 and the upper surface of the driving member 73, and the coil spring needle hook foot 711 is lifted by the hook spring foot 56 alone to be suspended above or in a corresponding state above the spring needle 72. Then, the working cylinder 61 of the structural system of the coil spring foot hooking mechanism 6 works, and the working cylinder column 612 moves downward, that is, extends out of the cylinder body, and pushes the coil spring needle hook foot 711 to fall off along the aforementioned hook spring foot inclined surface 561 through the hook spring foot matching groove 631 of the hooking action member 63, that is, the coil spring needle hook foot 711 falls off from the hook spring foot 56, so that the aforementioned coil spring hook foot cavity 7111 is sleeved on the spring needle 72, and the assembly of the coil spring 71 is completed. At this time, i.e. after the assembly is completed, the rotary sleeve driving motor 41 works counterclockwise to allow the hook spring foot 56 to be extended from the aforementioned hook spring foot matching groove 631, i.e. to leave the hook spring foot matching groove 631. The next coil spring 71 on the die base 81 of the rotary disk 8 is assembled according to the aforementioned similar working process.

[0033] The applicant needs to explain that: Figure 4 The central hole 731 of the driving member 73 shown in detail is a spline hole, and the rotation of the driving member 73 is achieved by a driving shaft matched with the spline hole 731, so the applicant defines the name of this application as an automatic assembly device for the return coil spring of the driving shaft of the car seat recliner. Specifically, the coil spring 71 drives the driving member 73, and the driving member 73 drives the spline shaft, i.e., the driving shaft, which is spline-matched with its central hole 731. Since the structure and working mechanism of the car seat recliner of the aforementioned structural form can be mainly referred to the patent documents such as CN105691250A mentioned above, the applicant will not repeat them.

[0034] In summary, the technical solution provided by the present invention makes up for the shortcomings of the existing technology, successfully completes the invention task, and faithfully realizes the technical effects stated by the applicant in the technical effect column above.

Claims

1. An automatic assembly device for a return coil spring of a driving shaft of a car seat recliner, characterized in that: Comprising a machine base (1), the machine base (1) is arranged along with an automatic assembly line of an automotive seat adjuster in a use state and is supported at the bottom on the floor or on a bracket carried by the floor; a transition frame lifting mechanism (2), the transition frame lifting mechanism (2) is arranged on the upper part of the machine base (1); a transition frame (3), the transition frame (3) is connected with the transition frame lifting mechanism (2) and rises and falls with the rise and fall of the transition frame lifting mechanism (2); a swivel drive mechanism (4), the swivel drive mechanism (4) is arranged on the 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 with the swivel drive mechanism (4) at a position corresponding to the lower part of the transition frame (3), the disc spring foot unhooking mechanism (6) is fixed to the lower right side of the 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 coil spring of the driving shaft of the car seat recliner according to claim 1 is characterized in that: A back plate fixing seat step (11) is formed on the upper front side and the upper rear side of the machine base (1) and at positions corresponding to each other; the transition frame lifting mechanism (2) comprises a back plate (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 back plate (21) is arranged in a longitudinal state, the lower end of the back plate (21) is fixed to the back plate fixing seat (211), and the front end and the rear end of the back plate fixing seat (211) are respectively connected at positions corresponding to the back plate fixing seat step (11) by fixing seat fasteners (2 111) is fixed to the upper part of the machine base (1), and a pair of back plate reinforcement wing plates (212) corresponding to each other are fixed on the left side of the back plate (21), and the bottom of the pair of back plate reinforcement wing plates (212) is fixed to the side of the back plate fixing seat (211) facing upward, and the transition frame lifting motor (22) is fixed to the transition frame lifting motor support seat (221) with its transition frame lifting motor shaft facing downward, and the transition frame lifting motor support seat (221) is fixed to a pair of transition frame lifting motor support seat brackets (2211), and the pair of transition frame lifting motor support seat brackets (2211) are fixed to the upper right side of the back plate (21) through fasteners, and the transition frame lifting motor shaft extends to the transition frame lifting motor support seat (221), the screw head (231) at the upper end of the transition frame lifting screw (23) 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 back plate (21), and the screw head at the lower end of the transition frame lifting screw (23) is 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 back plate (21). The right side of the plate (21) is fixed, the nut sleeve (24) is threadedly matched with the transition frame lifting screw (23), a nut sleeve flange edge (241) is formed on the nut sleeve (24), and the nut sleeve flange edge (241) is fixed to the upper part of the transition frame fixed connection seat (25) by screws, and the left side of the transition frame fixed connection seat (25) is fixed to the right side of the transition frame fixed connection seat slider (26), and a slider guide rail sliding matching groove (261) is formed on the left side of the transition frame fixed connection seat slider (26) and at a position corresponding to the transition frame fixed connection seat slider guide rail (27), and the slider guide rail sliding matching groove (261) and the transition frame fixed connection seat slider guide rail (27) form a sliding pair that slides up and down,The slider guide rail (27) of the transition frame fixed connection seat is fixed to the right side of the back plate (21) in a longitudinal state at a position corresponding to the position between the upper and lower pads (23112, 23211), and the coupling (28) is connected to the transition frame lifting motor shaft and the screw head (231) extending above the screw head 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 driving mechanism (4), the coil spring foot installation positioning mechanism (5) and the coil spring foot unhooking mechanism (6) are fixed to the right side of the transition frame fixed connection seat (25).

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

4. The automatic assembly device for the return coil spring of the driving shaft of the car seat recliner according to claim 2 is characterized in that: The 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 surface of the transition frame fixed connection seat (25) through 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). A pair of frame reinforcing arms (33) correspond to each other and are each in an L shape. 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. Among them, a reduction gearbox shaft relief hole (321) penetrating through the thickness direction of the horizontal bracket (32) is provided in the middle area of the horizontal bracket (32); the swivel drive mechanism (4) is fixed to the horizontal bracket (32) at a position corresponding to the reduction gearbox shaft relief hole (321); the disc spring foot mounting and positioning mechanism (5) is connected with the swivel drive mechanism (4) at a position corresponding to the lower part of the reduction gearbox shaft relief hole (321); the disc spring foot unhooking mechanism (6) is fixed to the right side of the horizontal bracket (32).

5. The automatic assembly device for the return coil spring of the driving shaft of the car seat recliner according to claim 4 is characterized in that: A cylinder seat fixing chamber (322) is formed on the right side of the horizontal bracket (32); the sleeve drive mechanism (4) comprises a sleeve drive motor (41) and a sleeve drive reduction box (42); the sleeve drive motor (41) is arranged with its sleeve drive motor shaft facing downward and is fixed to the top of the sleeve drive reduction box (42) by a sleeve drive motor seat fixing screw (4111); the sleeve drive motor shaft is in transmission cooperation with the sleeve drive reduction box (42) and the sleeve drive reduction box (42) is fixed to the sleeve drive reduction box seat plate (421) together with the sleeve drive motor (41); the sleeve drive reduction box (42) and the sleeve drive motor (41) are fixed to the sleeve drive reduction box seat plate (421). The box seat plate (421) is fixed to the upward side of the horizontal bracket (32) at a position corresponding to the lateral parts of the pair of frame reinforcement arms (33); the rotating sleeve driving reduction box shaft (422) of the rotating sleeve driving reduction box (42) extends to the bottom of the reduction box shaft clearance hole (321); the coil spring foot installation positioning mechanism (5) is connected to the rotating sleeve driving reduction box shaft (422) at a position corresponding to the bottom of the rotating sleeve driving reduction box shaft (422); the rotating sleeve driving 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 a position corresponding to the fixing cavity (322) of the action cylinder seat.

6. The automatic assembly device for the return coil spring of the driving shaft of the car seat recliner according to claim 5, characterized in that: The coil spring foot installation and positioning mechanism (5) comprises 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). Rotating sleeve fixing screw holes (511) are provided at intervals in the circumferential direction of the rotating sleeve (51) and pass through from the upper part to the lower part in the height direction of the rotating sleeve (51). Rotating sleeve fixing screws (5111) are inserted from bottom to top in the rotating sleeve fixing screw holes (511). The rotating sleeve fixing screws (5111) are provided to fix the rotating sleeve (5111) to the rotating sleeve (5111). ) fixes the rotating sleeve (51) to the lower end face of the rotating sleeve driving reduction box shaft (422), a pressing block connecting column up-and-down sliding cavity (512) is formed at the upper part of the central position of the rotating sleeve (51), and a pressing block connecting column clearance hole (513) communicating with the pressing block connecting column up-and-down sliding cavity (512) is formed at the lower end, and a pressing block connecting column sliding guide plate (521) is formed at the upper end of the pressing block connecting column (52), and the pressing block connecting column sliding guide plate (521) is connected to the pressing block connecting column up-and-down sliding cavity (5 The cavity wall of the pressure block connecting column (52) forms a sliding pair, the lower end of the pressure block connecting column protrudes into the pressure block connecting column clearance hole (513), the upper end of the reaction spring (53) is supported in the reduction box spring support pit formed on the lower end surface of the rotating sleeve driving reduction box shaft (422), and the lower end of the reaction spring (53) is supported on the pressure block connecting column sliding guide plate spring support pit (5211) formed at the central position of the side of the pressure block connecting column sliding guide plate (521) facing upward, and the coil spring foot pressure block (54) is located The bottom of the rotating sleeve (51) is connected to the bottom of the pressure block connecting column (52) by a coil spring foot pressure block connecting screw (541) at a position corresponding to the pressure block connecting column clearance hole (513); the hook spring foot seat (55) is fixed to the rotating sleeve (51) toward one side of the coil spring foot unhooking mechanism (6) by a 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) is matched or unmatched with the coil spring foot unhooking mechanism (6).

7. The automatic assembly device for the return coil spring of the driving shaft of the car seat recliner according to claim 6, characterized in that: A hook spring foot inclined surface (561) is formed on the front and rear side surfaces in the height direction of the hook spring foot (56), and a coil spring foot anti-falling skirt (562) is formed on the front and rear sides of the lower end of the hook spring foot (56).

8. The automatic assembly device for the return coil spring of the driving shaft of the car seat recliner according to claim 6, characterized in that: The coil spring foot unhooking mechanism (6) comprises an acting cylinder (61), an unhooking acting member stroke limit block (62), an unhooking acting member (63) and an unhooking member limiting plate (64); an acting cylinder fixing seat (611) of the acting cylinder (61) is fixed to the right side of the horizontal bracket (32) at a position corresponding to the acting cylinder seat fixing cavity (322) by an acting cylinder fixing seat screw (6111); an acting cylinder column (612) of the acting cylinder (61) faces downward; the unhooking acting member stroke limit block (62) corresponds to the bottom of the acting cylinder (61) and is fixed to the bottom of the horizontal bracket (32) by an unhooking acting member stroke limit block fixing screw (621) at a position corresponding to a limit block fixing screw hole (323) preset on the horizontal bracket (32) in a state of being in contact with the lower surface of the acting cylinder fixing seat (611); The travel limit block (62) of the unhooking member is provided with a slide groove (622) with an open bottom, the cylinder column (612) extends into the slide groove (622), the upper part of the unhooking member (63) is slidably matched with the slide groove (622) and fixed with the end of the cylinder column (612) in an up-and-down manner, and a hook spring foot matching groove (631) is formed in front of the lower right end of the unhooking member (63), the hook spring foot (56) is matched or released with the hook spring foot matching groove (631), the unhooking member limiting plate (64) is fixed to the bottom of the travel limit block (62) of the unhooking member at a position corresponding to the bottom of the slide groove (622) by at least one pair of limiting plate fixing screws (641), and the upper part of the unhooking member (63) is limited in the slide groove (622) by the unhooking member limiting plate (64).

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

10. The automatic assembly device for the return coil spring of the driving shaft of the car seat recliner according to claim 8, characterized in that: The hook-off cylinder (63) is in a Z-shape.

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