Assembly tool for zero-gravity mechanism assembly of automobile seat

By designing special assembly tooling and utilizing the pushing and core alignment mechanism to achieve rapid installation of the slave motor assembly and the main motor assembly, the problem that existing tooling fixtures cannot meet the needs of mass production is solved, installation efficiency is improved, and labor intensity is reduced.

CN223313448UActive Publication Date: 2025-09-09CHONGQING QUAN SHENG AUTOMOBILE PARTS
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Patent Information

Application Number
CN202422606385.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-28
Publication Date
2025-09-09
Estimated Expiration
2034-10-28

AI Technical Summary

Technical Problem

Existing fixtures cannot meet the needs of mass production of the newly designed zero-gravity mechanism for car seats, and manual assembly efficiency is low and cannot meet production requirements.

Method used

An assembly tool is designed, which includes a base, a long slide rail, a short slide rail, a pushing mechanism, a core alignment mechanism, a cross-tube fixing mechanism, etc. The slave motor assembly and the main motor assembly are brought closer together through the pushing mechanism, and the shaft connection holes are aligned in advance using the core alignment mechanism to achieve quick installation.

Benefits of technology

The installation efficiency of the zero-gravity mechanism of automobile seats is improved, the labor intensity of workers is reduced, and the needs of mass production are met.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an assembling tool for a zero-gravity mechanism assembly of an automobile seat. The assembling tool comprises a base; the two long sliding rails are arranged on the base in parallel; the short slide rail is parallel to the two long slide rails and is positioned between the two long slide rails; the two pushing and pressing mechanisms are arranged at the two ends of the long sliding rail correspondingly; a fixed part of the pushing and pressing mechanism is arranged on the base, and a sliding part of the pushing and pressing mechanism is arranged on the long sliding rail; the two pushing and pressing mechanisms are respectively used for accommodating and fixing a slave motor component and a master motor component of the zero-gravity mechanism assembly of the automobile seat; the core aligning mechanism is arranged on the short slide rail and slides along the end slide rail; the core aligning end of the core aligning mechanism is right opposite to a rotating shaft connecting hole of a slave motor assembly and a rotating shaft connecting hole of a master motor assembly of the automobile seat zero-gravity mechanism assembly. And the transverse pipe fixing mechanism is arranged on the bottom plate and is used for accommodating the transverse pipe. Rapid production can be realized, and the labor intensity of workers is reduced.
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Description

Technical Field

[0001] The utility model relates to the field of automobile parts assembly, in particular to an assembly tool for a zero-gravity mechanism assembly of an automobile seat. Background Art

[0002] The zero-gravity seat of a car achieves the effect of zero gravity by changing the shape of the seat. The shape of the leg support part of the seat needs to be changed. A newly designed zero-gravity mechanism assembly structure is currently available. Figure 14 As shown, it includes a left mounting plate, a slave motor assembly (driven screw, slave pipe), a master motor assembly (driving screw, master pipe), a motor connecting flexible shaft, a cross pipe, and a right mounting plate. All of these components are connected and assembled together, and finally secured to the seat frame via the left and right mounting plates. To achieve zero gravity, the rotation of the master motor assembly causes the respective pipes of the slave and master motor assemblies to shift, thereby changing the shape of the leg rest.

[0003] However, the current tooling and fixtures do not match the newly designed zero-gravity mechanism of the car seat. In small-batch production, manual assembly (using other common auxiliary tools such as hydraulic presses, positioning plates, etc.) is not a big problem. However, when the product is verified and needs to be produced in large quantities, the efficiency of manual assembly will be completely unable to meet the production requirements. Therefore, how to make the zero-gravity mechanism of the car seat can be produced quickly has become an urgent problem that needs to be solved. Utility Model Content

[0004] In view of the above-mentioned defects of the prior art, the purpose of the present invention is to provide an assembly tool for the zero-gravity mechanism of an automobile seat, which can achieve rapid production and reduce the labor intensity of workers.

[0005] The purpose of this utility model is achieved through such technical solution:

[0006] An assembly tool for a zero-gravity mechanism assembly of an automobile seat, comprising:

[0007] base;

[0008] Two long slide rails are arranged parallel and side by side on the base;

[0009] The short slide rail is parallel to the two long slide rails and is located between the two long slide rails;

[0010] Two pushing mechanisms are respectively arranged at both ends of the long slide rail; the fixed portion of the pushing mechanism is arranged on the base, and the sliding portion is arranged on the long slide rail; the two pushing mechanisms respectively accommodate and fix the slave motor assembly and the master motor assembly of the zero-gravity mechanism assembly of the car seat;

[0011] The core alignment mechanism is provided on the short slide rail and slides along the end slide rail; the core alignment end of the core alignment mechanism is aligned with the shaft connection holes of the slave motor assembly and the main motor assembly of the zero gravity mechanism assembly of the automobile seat;

[0012] The transverse tube fixing mechanism is arranged on the bottom plate and accommodates the transverse tube.

[0013] Furthermore, the pushing mechanism includes:

[0014] The pushing cylinder is arranged on the base, and its axis is parallel to the long slide rail;

[0015] The bottom plate has a long slider matching the long slide rail on its lower surface; the bottom plate is connected to the telescopic end of the pushing cylinder;

[0016] A vertical plate is vertically arranged on the base plate;

[0017] An in-situ detection unit is provided on the vertical plate to detect the left mounting plate or the right mounting plate of the zero-gravity mechanism of the automobile seat;

[0018] The top pressure telescopic unit is arranged on the vertical plate and faces the horizontal tube accommodated on the horizontal tube fixing mechanism;

[0019] The screw rod receiving member is arranged on the bottom plate; it limits the main screw rod or the slave screw rod of the zero gravity mechanism of the car seat;

[0020] The pipe fixing unit is arranged on the bottom plate and limits and fixes the slave pipe or the main pipe of the zero-gravity mechanism of the automobile seat.

[0021] Furthermore, the vertical plate is provided with two through holes;

[0022] The presence detection unit comprises:

[0023] Two metal sensors are arranged on the inner side of the vertical plate and face the two through holes respectively.

[0024] Furthermore, the vertical plate is provided with a perforation; the inner wall of the perforation is provided with an enlarged diameter hole;

[0025] The top pressure telescopic unit comprises:

[0026] A telescopic sleeve is provided on the vertical plate opposite to the perforated hole; an opening is provided on the side of the telescopic sleeve opposite to the vertical plate;

[0027] a telescopic spring, disposed in the telescopic sleeve;

[0028] The positioning shaft has a tail portion located within the telescopic sleeve and abutting against the telescopic spring, and a head portion passing through the through hole and located on the outer side surface of the vertical plate. A guide frustum protrusion is provided at the center of the end surface of the head portion of the positioning shaft, and the maximum diameter of the frustum protrusion is smaller than the diameter of the positioning shaft. The positioning shaft positions the left mounting plate or the right mounting plate of the zero-gravity mechanism of the automobile seat;

[0029] After the left mounting plate or the right mounting plate of the zero-gravity mechanism of the automobile seat is sleeved on the positioning shaft, the lower end surface is fitted with the upper surface of the base plate for limiting position.

[0030] Furthermore, the pushing mechanism further includes a stripping unit, and the stripping unit includes:

[0031] The stripping motor is arranged at the tail of the telescopic sleeve;

[0032] The transmission shaft has a head connected to the rotating shaft of the stripping motor, and a tail passing through the telescopic sleeve and sleeved in the telescopic spring; the outer surface of the tail of the transmission shaft is provided with at least one protrusion;

[0033] The tail of the positioning shaft is provided with a socket for accommodating the tail of the transmission shaft; the inner wall of the socket is provided with a strip-shaped sliding groove matching the protrusion on the transmission shaft.

[0034] Furthermore, the screw rod accommodating member includes:

[0035] The accommodating seat is arranged on the bottom plate, and an accommodating notch groove is provided on the upper end surface; the accommodating notch groove limits the main screw rod or the slave screw rod of the zero gravity mechanism of the automobile seat.

[0036] Furthermore, the pipe fixing unit includes:

[0037] The pipe fixing seat is arranged on the bottom plate, and the upper end surface is provided with a pipe notch groove, and the pipe fixing seat is made of plastic material; the pipe notch groove limits the main pipe or the slave pipe of the zero-gravity mechanism of the car seat;

[0038] The pipe fitting pressing cylinder is arranged on the bottom plate; the pressing piece of the pipe fitting pressing cylinder faces the pipe fitting fixing seat and is made of plastic.

[0039] Furthermore, the core alignment mechanism includes:

[0040] A slide plate is provided on the end slide rail;

[0041] Two core-aligning seats are arranged on the slide plate opposite to each other, and the core-aligning seats are provided with core-aligning grooves for accommodating the motor connecting flexible shaft;

[0042] For the core piece, the outer contours at both ends are the same as those at both ends of the motor connecting flexible shaft;

[0043] A set of sleeves, which are placed on the outer surface of the core piece;

[0044] The positioning ear plate is fixedly connected to the sleeve. When the sleeve rotates, it interferes with a core seat to achieve rotation limitation of the core piece.

[0045] Furthermore, a positioning groove is provided on the side of the slide;

[0046] The core alignment mechanism further comprises a spring top ball component which is arranged on the base, wherein the top ball of the spring top ball is directly opposite to the positioning groove and limits the position of the slide plate on the end slide rail.

[0047] Furthermore, the transverse tube fixing mechanism includes:

[0048] Two transverse tube fixing seats are arranged on the base, and the upper end surfaces are provided with transverse tube notch grooves; the transverse tube notch grooves limit the transverse tubes of the zero gravity mechanism of the car seat;

[0049] A bottom column is provided on the base and is located between the two transverse tube fixing seats, with a lower surface thereof in contact with lower surfaces of the transverse tubes accommodated on the two transverse tube fixing seats;

[0050] The horizontal pipe pressing cylinder is arranged on the base; the pressing piece of the horizontal pipe pressing cylinder is directly facing the bottom column.

[0051] Due to the adoption of the above technical solution, the utility model has the following advantages:

[0052] By providing a structure that accommodates and limits the various components of the vehicle seat's zero-gravity mechanism assembly, all components are positioned. Two pressing mechanisms bring the slave and main motor assemblies closer together, assembling them together with the cross tube, improving installation efficiency. Furthermore, the centering mechanism pre-aligns the shaft connection holes of the slave and main motor assemblies, ensuring smooth connection of the motor connecting shafts with the two assemblies during installation.

[0053] Other advantages, objectives and features of the present invention will be described in part in the following description and will be apparent to those skilled in the art based on an examination of the following or may be learned from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] The accompanying drawings of the present invention are as follows:

[0055] Figure 1 Schematic diagram of the three-dimensional structure of the assembly tool for the zero-gravity mechanism of the automobile seat in this embodiment.

[0056] Figure 2 for Figure 1 Enlarged structural diagram at point A in the middle.

[0057] Figure 3 for Figure 1 Enlarged structural diagram at point B in the middle.

[0058] Figure 4 for Figure 1 Enlarged structural diagram at point C in the middle.

[0059] Figure 5 for Figure 1Enlarged structural diagram at point D in the middle.

[0060] Figure 6 Schematic diagram of the front view of the assembly tool for the zero-gravity mechanism of the automobile seat in this embodiment.

[0061] Figure 7 for Figure 6 Enlarged structural diagram at E in the middle.

[0062] Figure 8 for Figure 6 Schematic diagram of the structure of the FF section.

[0063] Figure 9 for Figure 8 Enlarged structural diagram at G in the middle.

[0064] Figure 10 for Figure 6 Schematic diagram of the structure at the HH section.

[0065] Figure 11 for Figure 10 Enlarged structural diagram at J in the middle.

[0066] Figure 12 This is a schematic diagram of the three-dimensional structure of the zero-gravity mechanism assembly of the automobile seat in this embodiment before assembly.

[0067] Figure 13 for Figure 12 Enlarged structural diagram at K in the middle.

[0068] Figure 14 Schematic diagram of the structure of the zero-gravity mechanism assembly of the automobile seat after assembly in this embodiment.

[0069] Figure: 1. Base; 2. Long slide rail; 3. Short slide rail; 41. Pushing cylinder; 42. Bottom plate; 43. Vertical plate; 431. Through hole; 432. Perforation; 4321. Expanded hole; 44. Metal sensor; 451. Telescopic sleeve; 452. Telescopic spring; 453. Positioning shaft; 4531. Guide round table protrusion; 4532. Insertion hole; 4533. Strip slide; 46. Accommodating seat; 461. Accommodating notch; 471. Pipe fixing seat; 4711. Pipe notch; 472. Pipe pressing cylinder; 481. Stripping motor; 482. Transmission Shaft; 4821. Protrusion; 51. Slide plate; 511. Positioning groove; 52. Core seat; 521. Core groove; 53. Core piece; 54. Kit; 55. Positioning ear plate; 56. Spring top ball piece; 61. Cross tube fixing seat; 611. Cross tube notch groove; 62. Bottom column; 63. Cross tube clamping cylinder; 71. Left mounting plate; 72. Slave motor assembly; 721. Driven pipe fitting; 722. Driven screw rod; 73. Main motor assembly; 731. Active pipe fitting; 732. Active screw rod; 74. Motor connecting flexible shaft; 75. Cross tube; 76. Right mounting plate. DETAILED DESCRIPTION

[0070] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0071] Example:

[0072] like Figures 1 to 11 As shown, an assembly tool for the zero-gravity mechanism of a car seat includes:

[0073] Base 1;

[0074] Two long slide rails 2 are arranged parallel and side by side on the base 1;

[0075] The short slide rail 3 is parallel to the two long slide rails 2 and is located between the two long slide rails 2;

[0076] Two pushing mechanisms are respectively arranged at both ends of the long slide rail 2; the fixed portion of the pushing mechanism is arranged on the base 1, and the sliding portion is arranged on the long slide rail 2; the two pushing mechanisms respectively accommodate the slave motor assembly 72 and the master motor assembly 73 of the zero-gravity mechanism assembly of the car seat;

[0077] The core alignment mechanism is provided on the short slide rail 3 and slides along the end slide rail; the core alignment end of the core alignment mechanism is aligned with the shaft connection holes of the slave motor assembly 72 and the main motor assembly 73 of the zero gravity mechanism assembly of the automobile seat;

[0078] The transverse tube 75 fixing mechanism is provided on the bottom plate 42 and accommodates the transverse tube 75 .

[0079] By providing a structure that accommodates and limits the various components of the vehicle seat zero-gravity mechanism assembly, all components are positioned. Two pushing mechanisms are used to bring the slave motor assembly 72 and the main motor assembly 73 closer together, allowing them to be assembled with the cross tube 75, improving installation efficiency. Furthermore, the core alignment mechanism allows the shaft connection holes of the slave motor assembly 72 and the main motor assembly 73 to be pre-positioned, ensuring that the motor connecting flexible shaft 74 can be smoothly connected to the slave motor assembly 72 and the main motor assembly 73 during installation.

[0080] In this embodiment, the pushing mechanism includes:

[0081] The pushing cylinder 41 is arranged on the base 1, and its axis is parallel to the long slide rail 2;

[0082] The bottom plate 42 has a long slider matching the long slide rail 2 on its lower surface; the bottom plate 42 is connected to the telescopic end of the pushing cylinder 41;

[0083] A vertical plate 43 is vertically arranged on the bottom plate 42;

[0084] An in-position detection unit is provided on the vertical plate 43 to detect the left mounting plate 71 or the right mounting plate 76 of the zero-gravity mechanism of the automobile seat;

[0085] The top pressure telescopic unit is provided on the vertical plate 43 and is directly opposite to the horizontal tube 75 accommodated on the fixing mechanism of the horizontal tube 75;

[0086] The screw rod accommodating member is provided on the bottom plate 42; it limits the main screw rod or the slave screw rod of the zero gravity mechanism of the car seat;

[0087] The pipe fixing unit is provided on the base plate 42 to limit and fix the secondary pipe or the main pipe of the zero-gravity mechanism of the automobile seat.

[0088] The pushing cylinder 41 controls the movement of the main motor assembly 73 or the slave motor assembly 72 .

[0089] In this embodiment, the vertical plate 43 is provided with two through holes 431;

[0090] The presence detection unit comprises:

[0091] Two metal sensors 44 are disposed on the inner side of the vertical plate 43 , facing the two through holes 431 respectively.

[0092] One of the metal sensors 44 can detect whether a left mounting plate 71 or a right mounting plate 76 is placed on the side of the vertical plate 43, and the other can correspond to the mounting hole on the corresponding left mounting plate 71 or right mounting plate 76, thereby determining whether the model of the placed left mounting plate 71 or right mounting plate 76 is correct.

[0093] In this embodiment, the vertical plate 43 is provided with a through hole 432 ; the inner wall of the through hole 432 is provided with an enlarged diameter hole 4321 ;

[0094] The top pressure telescopic unit comprises:

[0095] The telescopic sleeve 451 is provided on the vertical plate 43 opposite to the through hole 432; the telescopic sleeve 451 has an opening on the side facing the vertical plate 43;

[0096] The telescopic spring 452 is disposed in the telescopic sleeve 451;

[0097] The tail of the positioning shaft 453 is located in the telescopic sleeve 451 and is against the telescopic spring 452. The head passes through the through hole 432 and is located on the outer side of the vertical plate 43. The center of the head end face of the positioning shaft 453 is provided with a guide frustum protrusion 4531, and the maximum diameter of the frustum protrusion 4821 is smaller than the diameter of the positioning shaft 453; the positioning shaft 453 positions the left mounting plate 71 or the right mounting plate 76 of the zero-gravity mechanism of the automobile seat; after the left mounting plate 71 or the right mounting plate 76 of the zero-gravity mechanism of the automobile seat is sheathed on the positioning shaft 453, the lower end face is fitted with the upper surface of the base plate 42 for limiting the position.

[0098] The enlarged diameter hole 4321 can accommodate both ends of the transverse tube 75 to pass through the left mounting plate 71 or the right mounting plate 76 to avoid interference between the transverse tube 75 and the vertical plate 43 .

[0099] During the assembly process, the positioning shaft 453 is synchronously retreated to ensure that the cross tube 75 remains stable during the assembly process.

[0100] In this embodiment, the pushing mechanism further includes a stripping unit, and the stripping unit includes:

[0101] The stripping motor 481 is arranged at the tail of the telescopic sleeve 451;

[0102] The transmission shaft 482 has a head connected to the rotating shaft of the stripping motor 481 and a tail passing through the telescopic sleeve 451 and sleeved in the telescopic spring 452; the outer surface of the tail of the transmission shaft 482 is provided with at least one protrusion 4821;

[0103] The tail of the positioning shaft 453 is provided with a socket 4532 for accommodating the tail of the transmission shaft 482 ; the inner wall of the socket 4532 is provided with a strip-shaped sliding groove 4533 that matches the protrusion 4821 on the transmission shaft 482 .

[0104] The cross tube 75 is inserted into the left mounting plate 71 and the driven motor or the right mounting plate 76 and the active motor, and its surface will rub against them. Therefore, it is necessary to apply lubricant to both ends of the cross tube 75 before assembly. The lubricant will partially remain on the end face of the cross tube 75, and will be squeezed against the end face of the positioning shaft 453 during the assembly process. At this time, an adhesive force will be generated between the end face of the positioning shaft 453 and the end face of the cross tube 75, and between the guide frustum protrusion 4531 and the inner wall of the cross tube 75. At this time, if the positioning shaft 453 is forced to separate from the cross tube 75 directly by moving the pushing cylinder 41, an impact force will be generated at the moment of separation, which will cause vibration and affect the service life of the pushing cylinder 41. Therefore, it is necessary to reduce the adhesive force between the positioning shaft 453 and the cross tube 75 through the stripping motor 481, and then smoothly separate the positioning shaft 453 from the cross tube 75 through the pushing cylinder 41.

[0105] In this embodiment, the screw rod accommodating member includes:

[0106] The accommodating seat 46 is arranged on the bottom plate 42, and an accommodating notch groove 461 is provided on the upper end surface; the accommodating notch groove 461 limits the main screw rod or the slave screw rod of the zero-gravity mechanism of the automobile seat.

[0107] In this embodiment, the pipe fixing unit includes:

[0108] The pipe fixing seat 471 is provided on the bottom plate 42 and has a pipe notch 4711 on its upper end surface. The pipe fixing seat 471 is made of plastic. The pipe notch 4711 limits the main pipe or the slave pipe of the zero-gravity mechanism of the car seat.

[0109] The pipe pressing cylinder 472 is arranged on the base plate 42 ; the pressing member of the pipe pressing cylinder 472 faces the pipe fixing seat 471 and is made of plastic.

[0110] The surface of the pipe is sprayed with paint, and the plastic material can prevent the paint from being scratched.

[0111] In this embodiment, the core alignment mechanism includes:

[0112] Slide plate 51, arranged on the end slide rail;

[0113] Two core-aligning seats 52 are disposed opposite to each other on the slide 51 , and each core-aligning seat 52 is provided with a core-aligning groove 521 for accommodating the motor connecting flexible shaft 74 ;

[0114] The outer contours of the two ends of the core member 53 are the same as the outer contours of the two ends of the motor connecting flexible shaft 74;

[0115] The sleeve 54 is covered on the outer surface of the core member 53;

[0116] The positioning ear plate 55 is fixedly connected to the sleeve 54 . When the sleeve 54 rotates, it interferes with a core alignment seat 52 to limit the rotation of the core alignment member 53 .

[0117] The main motor assembly 73 and the slave motor assembly 72 are connected through the motor connecting flexible shaft 74, so the connecting holes of the main motor assembly 73 and the slave motor assembly 72 need to be aligned, otherwise the motor connecting flexible shaft 74 cannot be inserted into the main motor assembly 73 and the slave motor assembly 72. Therefore, the connecting holes of the main motor assembly 73 and the slave motor assembly 72 need to be manually adjusted before assembly.

[0118] By moving the slide plate 51 to the main motor assembly 73 or the slave motor assembly 72 respectively, aligning the motor connecting flexible shaft 74 with the connecting hole of the main motor assembly 73 or the slave motor assembly 72 and inserting it, the positioning ear plate 55 is rotated to force the connecting hole of the main motor assembly 73 or the slave motor assembly 72 to rotate, and finally when the positioning ear plate 55 interferes with the core seat 52, the positioning of the connecting hole is completed.

[0119] In this embodiment, a positioning groove 511 is provided on the side of the slide plate 51;

[0120] The centering mechanism further includes a spring top ball 56 , which is provided on the base 1 , and the top ball thereof faces the positioning groove 511 , thereby limiting the position of the slide 51 on the end slide rail.

[0121] The positioning groove 511 is used to control the core alignment mechanism to be in the middle position during assembly, so as to ensure that both ends of the motor connecting flexible shaft 74 are inserted synchronously during the assembly process.

[0122] In this embodiment, the fixing mechanism of the transverse tube 75 includes:

[0123] Two transverse tube fixing seats 61 are provided on the base 1, and the upper end surfaces are provided with transverse tube notch grooves 611; the transverse tube notch grooves 611 limit the transverse tube 75 of the zero gravity mechanism of the car seat;

[0124] The bottom column 62 is provided on the base 1 and is located between the two transverse tube fixing seats 61 , and its lower surface contacts the lower surface of the transverse tube 75 accommodated on the two transverse tube fixing seats 61 ;

[0125] The transverse tube pressing cylinder 63 is provided on the base 1 ; the pressing member of the transverse tube pressing cylinder 63 faces the bottom column 62 .

[0126] This embodiment is such that Figure 12 、 13As shown, all parts (except the motor connecting flexible shaft 74) are placed in the tooling of this embodiment, and then the core piece 53 is placed in the core seat 52, and the core seat 52 is pushed to move the cabinet toward the main motor assembly 73, and then the core piece 53 is controlled to rotate so that its end is inserted into the connecting hole of the main motor assembly 73, and then, the kit 54 is rotated so that the positioning ear plate 55 is against the core seat 52, so that the connecting hole of the main motor assembly 73 is adjusted into place, and the connecting hole of the slave motor assembly 72 is adjusted in the same way.

[0127] After the adjustment is completed, the core seat 52 is pushed to reset, that is, the positioning groove 511 and the spring ball member 56 are abutted, and then the core member 53 is removed and the motor connecting flexible shaft 74 is inserted.

[0128] Control the cross tube clamping cylinder 63 and the pipe clamping cylinder 472 to perform the clamping action, and then control the two pushing cylinders 41 to extend so that all accessories are assembled. After the assembly is completed, disconnect the extension force on the pushing cylinder 41, and then control the stripping motor 481 to rotate so that the positioning shaft 453 is separated from the cross bar. Subsequently, control all cross tube clamping cylinders 63 and the pipe clamping cylinder 472 to release the clamping action, control the pushing cylinder 41 to reset, and take out the assembled car seat zero gravity mechanism assembly.

[0129] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the utility model.

Claims

1. An assembly tool for a zero-gravity mechanism assembly of a car seat, characterized in that: include: base; Two long slide rails are arranged parallel and side by side on the base; The short slide rail is parallel to the two long slide rails and is located between the two long slide rails; Two pushing mechanisms are respectively arranged at both ends of the long slide rail; the fixed portion of the pushing mechanism is arranged on the base, and the sliding portion is arranged on the long slide rail; the two pushing mechanisms respectively accommodate and fix the slave motor assembly and the master motor assembly of the zero-gravity mechanism assembly of the car seat; The core alignment mechanism is provided on the short slide rail and slides along the end slide rail; the core alignment end of the core alignment mechanism is aligned with the shaft connection holes of the slave motor assembly and the main motor assembly of the zero gravity mechanism assembly of the automobile seat; The transverse tube fixing mechanism is arranged on the bottom plate and accommodates the transverse tube.

2. The vehicle seat zero gravity mechanism assembly tool according to claim 1, characterized in that: The pushing mechanism comprises: The pushing cylinder is arranged on the base, and its axis is parallel to the long slide rail; The bottom plate has a long slider matching the long slide rail on its lower surface; the bottom plate is connected to the telescopic end of the pushing cylinder; A vertical plate is vertically arranged on the base plate; An in-situ detection unit is provided on the vertical plate to detect the left mounting plate or the right mounting plate of the zero-gravity mechanism of the automobile seat; The top pressure telescopic unit is arranged on the vertical plate and faces the horizontal tube accommodated on the horizontal tube fixing mechanism; The screw rod receiving member is arranged on the bottom plate; it limits the main screw rod or the slave screw rod of the zero gravity mechanism of the car seat; The pipe fixing unit is arranged on the bottom plate and limits and fixes the slave pipe or the main pipe of the zero-gravity mechanism of the automobile seat.

3. The vehicle seat zero gravity mechanism assembly tool according to claim 2, characterized in that: The vertical plate is provided with two through holes; The presence detection unit comprises: Two metal sensors are arranged on the inner side of the vertical plate and face the two through holes respectively.

4. The vehicle seat zero gravity mechanism assembly tool according to claim 2, characterized in that: The vertical plate is provided with a perforation; the inner wall of the perforation is provided with an enlarged diameter hole; The top pressure telescopic unit includes: A telescopic sleeve is provided on the vertical plate opposite to the perforated hole; an opening is provided on the side of the telescopic sleeve opposite to the vertical plate; a telescopic spring, disposed in the telescopic sleeve; The positioning shaft has a tail portion located within the telescopic sleeve and abutting against the telescopic spring, and a head portion passing through the through hole and located on the outer side surface of the vertical plate. A guide frustum protrusion is provided at the center of the end surface of the head portion of the positioning shaft, and the maximum diameter of the frustum protrusion is smaller than the diameter of the positioning shaft. The positioning shaft positions the left mounting plate or the right mounting plate of the zero-gravity mechanism of the automobile seat; After the left mounting plate or the right mounting plate of the zero-gravity mechanism of the automobile seat is sleeved on the positioning shaft, the lower end surface is fitted with the upper surface of the base plate for limiting position.

5. The vehicle seat zero gravity mechanism assembly tool according to claim 4, characterized in that: The pushing mechanism further includes a stripping unit, which includes: The stripping motor is arranged at the tail of the telescopic sleeve; The transmission shaft has a head connected to the rotating shaft of the stripping motor, and a tail passing through the telescopic sleeve and sleeved in the telescopic spring; the outer surface of the tail of the transmission shaft is provided with at least one protrusion; The tail of the positioning shaft is provided with a socket for accommodating the tail of the transmission shaft; the inner wall of the socket is provided with a strip-shaped sliding groove matching the protrusion on the transmission shaft.

6. The vehicle seat zero gravity mechanism assembly tool according to claim 2, characterized in that: The screw rod accommodating member includes: The accommodating seat is arranged on the bottom plate, and an accommodating notch groove is provided on the upper end surface; the accommodating notch groove limits the main screw rod or the slave screw rod of the zero gravity mechanism of the automobile seat.

7. The vehicle seat zero gravity mechanism assembly tool according to claim 2, characterized in that: The pipe fixing unit includes: The pipe fixing seat is arranged on the bottom plate, and the upper end surface is provided with a pipe notch groove, and the pipe fixing seat is made of plastic material; the pipe notch groove limits the main pipe or the slave pipe of the zero-gravity mechanism of the car seat; The pipe fitting pressing cylinder is arranged on the bottom plate; the pressing piece of the pipe fitting pressing cylinder faces the pipe fitting fixing seat and is made of plastic.

8. The vehicle seat zero gravity mechanism assembly tool according to claim 1, characterized in that: The core alignment mechanism comprises: A slide plate is provided on the end slide rail; Two core-aligning seats are arranged on the slide plate opposite to each other, and the core-aligning seats are provided with core-aligning grooves for accommodating the motor connecting flexible shaft; For the core piece, the outer contours at both ends are the same as those at both ends of the motor connecting flexible shaft; A set of sleeves, which are placed on the outer surface of the core piece; The positioning ear plate is fixedly connected to the sleeve. When the sleeve rotates, it interferes with a core seat to achieve rotation limitation of the core piece.

9. The vehicle seat zero gravity mechanism assembly tool according to claim 8, characterized in that: A positioning groove is provided on the side of the slide; The core alignment mechanism further comprises a spring top ball component which is arranged on the base, wherein the top ball of the spring top ball is directly opposite to the positioning groove and limits the position of the slide plate on the end slide rail.

10. The vehicle seat zero gravity mechanism assembly tool according to claim 1, characterized in that: The cross tube fixing mechanism comprises: Two transverse tube fixing seats are arranged on the base, and the upper end surfaces are provided with transverse tube notch grooves; the transverse tube notch grooves limit the transverse tubes of the zero gravity mechanism of the car seat; A bottom column is provided on the base and is located between the two transverse tube fixing seats, with a lower surface thereof in contact with lower surfaces of the transverse tubes accommodated on the two transverse tube fixing seats; The horizontal pipe pressing cylinder is arranged on the base; the pressing piece of the horizontal pipe pressing cylinder is directly facing the bottom column.