Flexible assembly tool applied to automobile headrest framework

Abstract

The utility model belongs to the field of assembly, and provides a flexible assembly tool applied to an automobile headrest framework. The material moving module is arranged on the tool table, and the material moving module is used for grabbing and moving the headrest framework to be assembled and the outer guide sleeve to be assembled; the positioning module is used for fixing the headrest framework; the assembling module and the positioning module are arranged in an aligned mode, and the assembling module comprises a follow-up rod and a buffering explorator. Compared with the prior art, the device has the advantages that the follow-up rod movably abuts against the headrest framework and is matched with the buffering explorator to be static relative to the headrest framework in the assembling process, it is guaranteed that the outer guide sleeve can be accurately assembled into the headrest framework, and the outer guide sleeve can be accurately assembled into the headrest framework through the movement characteristic of the buffering explorator. Flexible assembly between the outer guide sleeve and the headrest framework is achieved, and the phenomenon that the outer guide sleeve or the headrest framework is damaged in the assembly process is effectively avoided.

Description

Technical Field

[0001] The utility model belongs to the field of assembly, and in particular relates to a flexible assembly tool used for an automobile headrest frame. Background Art

[0002] In the process of car seat manufacturing, the assembly of the headrest frame is an important process.

[0003] Traditional assembly methods mostly rely on manual operation, that is, they are completed in the form of assembly line operations, and the overall assembly efficiency is relatively low. In some automated assembly equipment, most of them position the headrest frame and the outer guide sleeve separately, and then use the push of a cylinder or oil cylinder to achieve the outer guide sleeve snapping into the headrest frame. This assembly method is not only prone to loose fit and improper installation between the two, but also the rigid assembly impact between the outer guide sleeve and the headrest frame during the assembly process is bound to cause damage to the parts, which directly affects the assembly efficiency and quality of the product. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a flexible assembly tool for an automobile headrest frame.

[0005] The technical solution adopted by the utility model to solve the technical problem is to propose a flexible assembly tool for automobile headrest frame, which is used to assemble the outer guide sleeve into the headrest frame with support rods, including: a tooling table;

[0006] A material transfer module is provided on the tooling table, and is used to grab and transfer the headrest frame and outer guide sleeve to be assembled;

[0007] A positioning module and an assembly module, wherein the positioning module is used to fix the headrest frame; the assembly module is aligned with the positioning module, and the assembly module includes a follower rod and a buffering mold, wherein the follower rod can be moved and pressed against the side wall of the headrest frame when the assembly module approaches the positioning module; the buffering mold is used to accommodate the outer guide sleeve and can drive the outer guide sleeve to move along an assembly direction away from the assembly module;

[0008] A transfer module is provided on the tooling table and is located above the positioning module. An auxiliary block is connected to the transfer module, and the auxiliary block is movably pressed against the top wall of the headrest frame.

[0009] When the assembly module drives the buffer mold to sleeve the support rod and approach the headrest frame, the buffer mold can remain stationary relative to the headrest frame as the assembly module continues to move along the assembly direction, so that the front end of the outer guide sleeve can cross the auxiliary block and be movably snapped into the headrest frame.

[0010] In the flexible assembly tooling for the headrest framework of the automobile described above, the assembly module further comprises:

[0011] an assembly motor arranged at the bottom of the tooling table, the output end of the assembly motor being drivingly connected with a lead screw; and a material moving plate provided with a movable block, the movable block being movable on the lead screw so as to allow the material moving plate to reciprocate along the axis of the lead screw;

[0012] a guide block and a guide rail, the guide rail being arranged on the tooling table in parallel with the lead screw, the guide block being connected with the material moving plate and movably clamped with the guide rail;

[0013] a fixed seat arranged on the material moving plate, and a guide rod connected with the fixed seat and penetrating through the buffer stopper so as to movably abut against the end of the support rod.

[0014] In the flexible assembly tooling for the headrest framework of the automobile described above, the positioning module comprises:

[0015] a lifting plate provided with a profiling seat for limiting the movement of the headrest framework to be assembled;

[0016] a lifting cylinder arranged at the bottom of the tooling table, the output end of the lifting cylinder being connected with the lifting plate so as to adjust the assembly height of the headrest framework;

[0017] a retracting assembly movably penetrating through the tooling table in the vertical direction, the retracting assembly being located between the lifting plate and the buffer stopper, the retracting assembly being provided with a pre-pressing block movably pressing against the support rod.

[0018] In the flexible assembly tooling for the headrest framework of the automobile described above, the buffer stopper comprises:

[0019] a buffer cylinder connected at the end of the material moving plate, the output end of the buffer cylinder being connected with a buffer plate;

[0020] a positioning seat connected with the fixed seat, the end of the positioning seat being movably hinged with a buffer block, the outer guide sleeve movably abutting against the buffer block;

[0021] an outer guide sleeve stopper arranged on the buffer plate, the outer guide sleeve stopper being formed with an accommodating cavity, the buffer block extending into the accommodating cavity.

[0022] In the flexible assembly tooling for the headrest framework of the automobile described above, the retracting assembly further comprises:

[0023] A retraction cylinder is installed at the bottom of the workbench, and an output end of the retraction cylinder is connected to a lifting plate;

[0024] The pre-compression cylinders are distributed at both ends of the lifting plate in the length direction, and the output ends of the pre-compression cylinders are connected to the pre-compression blocks to drive the pre-compression blocks to move closer to or away from the support rods.

[0025] In the above-mentioned flexible assembly tooling applied to the automobile headrest frame, the bottom end of the auxiliary block extends outward to form a protruding block, and a guiding slope is provided on the protruding block. The guiding slope is used to guide the front end of the outer guide sleeve to cross the protruding block and be snapped into the headrest frame.

[0026] In the above-mentioned flexible assembly tool for automobile headrest frames, the transfer module further includes:

[0027] A horizontal linear guide rail is arranged on the workbench, and an output end of the horizontal linear guide rail is connected to a vertical linear guide rail;

[0028] Guide sleeve and blanking cylinder, the output end of the vertical linear guide rail is connected to a mounting plate, a guide column is provided at the periphery of the lifting plate, the guide sleeve is connected to the mounting plate and movably sleeved on the guide column; the blanking cylinder is connected to the mounting plate and is used to grab the headrest frame;

[0029] A positioning cylinder is connected to the mounting plate, and an output end of the positioning cylinder is connected to the auxiliary block to drive the auxiliary block to move and press against the headrest frame;

[0030] A conveyor belt is arranged on the tooling table and is used to move the assembled products to the outside of the tooling table.

[0031] In the above-mentioned flexible assembly tool for automobile headrest frames, the material transfer module includes:

[0032] A fixed bracket, wherein a driving guide rail is configured on the workbench, one end of the fixed bracket is connected to the output end of the driving guide rail, and the other end is installed with a detection column, and the detection column is used to detect the position of the headrest frame;

[0033] A first grabbing cylinder and a second grabbing cylinder are vertically arranged on the fixing bracket, the first grabbing cylinder is symmetrically provided with first clamping jaws facing inward, and the second grabbing cylinder is symmetrically provided with second clamping jaws facing outward, the spacing between the first clamping jaws is smaller than the spacing between the second clamping jaws, and the first clamping jaws and the second clamping jaws are used to clamp the inner and outer walls of the headrest support rod respectively to reduce the deformation of the headrest support rod;

[0034] An adjusting component is movably arranged on the fixing bracket. A picking cylinder is provided on the adjusting component. The picking cylinder is used to grab and adjust the distance between the outer guide sleeve to be assembled and the headrest frame.

[0035] In the above-mentioned flexible assembly tool for automobile headrest frame, the adjustment component includes:

[0036] A driving member is mounted on the fixed bracket, wherein the output end of the driving member is connected to a gear;

[0037] A plurality of guide rods, wherein a fixed guide sleeve is connected in the fixed bracket, each of the fixed guide sleeves is movably connected to the guide rod, and a connecting plate is provided at the end of the guide rod, and the pickup cylinder is mounted on the connecting plate;

[0038] The movable rod is movably connected to the fixed bracket and is arranged in parallel with the guide rod. A plurality of mutually connected convex teeth are arranged in an array on the movable rod, and the convex teeth are movably engaged with the gear.

[0039] In the above-mentioned flexible assembly tooling applied to the automobile headrest frame, a mounting bracket is further provided on the tooling table, and a detection camera is configured on the mounting bracket. The detection camera is used to detect the quality of the assembled product.

[0040] Compared with the prior art, the present invention has the following beneficial effects:

[0041] (1) The utility model relates to a flexible assembly tool for a headrest frame of an automobile. The follower rod is movable against the headrest frame, and the buffering mold is stationary relative to the headrest frame during the assembly process. This not only ensures that the outer guide sleeve can be accurately assembled into the headrest frame, but also realizes flexible assembly between the outer guide sleeve and the headrest frame through the movable characteristics of the buffering mold, effectively avoiding damage to the outer guide sleeve or the headrest frame during the assembly process. At the same time, under the cooperation of the material transfer module, the positioning module and the loading and unloading module, the outer guide sleeve is automatically and accurately assembled with the headrest frame having the support rod, reducing the dependence on the operator and effectively improving the assembly quality and efficiency.

[0042] (2) By utilizing the different orientations of the first and second clamping jaws, combined with the different spacing between them, the stable gripping of the inner and outer walls of the headrest frame is effectively ensured, thus avoiding deformation of the headrest frame due to uneven gripping force.

[0043] (3) The relative position and distance between the outer guide sleeve and the headrest frame are adjusted by using the picking cylinder in conjunction with the adjustment component, which enhances the adaptability and flexibility of the equipment and meets the assembly requirements of different models of headrest frames. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 is a perspective view of the present application;

[0045] Figure 2 It is a schematic diagram of the installation structure of the positioning module and the assembly module;

[0046] Figure 3 It is a structural diagram of the buffer prototype;

[0047] Figure 4 It is a three-dimensional diagram of the transfer module;

[0048] Figure 5 This is a schematic diagram of the installation structure of the first grabbing cylinder and the second grabbing cylinder;

[0049] Figure 6 It is a schematic diagram of the installation structure of the adjustment component.

[0050] In the figure, 1, headrest frame; 10, support rod; 11, outer guide sleeve;

[0051] 2. Workbench; 20. Guide rail; 21. Drive rail; 22. Mounting bracket; 220. Inspection camera;

[0052] 3. Material transfer module; 30. Fixed bracket; 300. Fixed guide sleeve; 31. Detection column; 32. First grabbing cylinder; 320. First clamping jaw; 33. Second grabbing cylinder; 330. Second clamping jaw; 34. Adjustment assembly; 340. Pickup cylinder; 341. Driving member; 342. Gear; 343. Guide rod; 344. Connecting plate; 345. Moving rod; 345a. Protruding tooth;

[0053] 4. Positioning module; 40. Lifting plate; 400. Contour seat; 401. Guide column; 41. Lifting cylinder; 42. Retraction assembly; 420. Retraction cylinder; 421. Lifting plate; 422. Pre-compression cylinder; 423. Pre-compression block;

[0054] 5. Assembly module; 50. Follower rod; 51. Buffering mold; 510. Buffer cylinder; 511. Buffer plate; 512. Positioning seat; 513. Buffer block; 514. Outer guide sleeve mold; 515. Accommodating chamber; 52. Assembly motor; 520. Lead screw; 53. Material transfer plate; 530. Movable block; 531. Guide block; 54. Fixed seat; 55. Guide rod;

[0055] 6. Transfer module; 60. Auxiliary block; 600. Raised block; 600a. Guide slope; 61. Horizontal linear guide rail; 62. Vertical linear guide rail; 620. Mounting plate; 63. Guide sleeve; 64. Unloading cylinder; 65. Positioning cylinder; 66. Conveyor belt. DETAILED DESCRIPTION

[0056] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0057] like Figures 1 to 6 As shown, the utility model is a flexible assembly tool for a car headrest frame 1, which is used to assemble an outer guide sleeve 11 into the headrest frame 1 with a support rod 10. The assembly tool also includes: a tooling table 2; a material transfer module 3, which is arranged on the tooling table 2, and the material transfer module 3 is used to grab and transfer the headrest frame 1 and the outer guide sleeve 11 to be assembled; a positioning module 4 and an assembly module 5, and the positioning module 4 is used to fix the headrest frame 1; the assembly module 5 is aligned with the positioning module 4, and the assembly module 5 includes a follower rod 50 and a buffer backing mold 51, and the follower rod 50 can be moved and pressed against the headrest when the assembly module 5 approaches the positioning module 4. On the side wall of the frame 1; the buffer backing plate 51 is used to accommodate the outer guide sleeve 11, and can drive the outer guide sleeve 11 to move along the assembly direction away from the assembly module 5; the transfer module 6 is arranged on the workbench 2 and is located above the positioning module 4. The transfer module 6 is connected to the auxiliary block 60, and the auxiliary block 60 is movably pressed against the top wall of the headrest frame 1; when the assembly module 5 drives the buffer backing plate 51 to sleeve the support rod 10 and approaches the headrest frame 1, the buffer backing plate 51 can remain stationary relative to the headrest frame 1 as the assembly module 5 continues to move along the assembly direction, so that the front end of the outer guide sleeve 11 can cross the auxiliary block 60 and be movably snapped into the headrest frame 1.

[0058] Before the headrest frame 1 in this embodiment is assembled with the outer guide sleeve 11, the headrest frame 1 has been assembled with the headrest support rod 10, the unlocking rod and the locking wire (not shown in the figure). During the final assembly of the outer guide sleeve 11, attention should be paid to the problem of damage to the outer guide sleeve 11 or the headrest frame 1. Specifically, Figures 1 to 6 As shown, the material moving module 3 can respectively clamp the headrest frame 1 and the outer guide sleeve 11 to be assembled, and after the headrest frame 1 is limited by the positioning module 4, as the outer guide sleeve 11 is placed in the buffering paving die 51, the loading module 6 can drive the auxiliary block 60 to press against the top wall of the headrest frame 1. It should be noted that the loading module 6 can synchronously complete the grabbing of the headrest frame 1 at this time, so that the subsequent unloading operation can be started as soon as the assembly operation is completed, reducing unnecessary waiting time and ensuring the overall operation efficiency; in the process of the assembly module 5 pushing the buffering paving die 51 to approach the positioning module 4, the buffering paving die 51 is sleeved on the support rod 10 and continues to move toward the headrest frame 1. When the buffering paving die 51 is close to the positioning module 4, the follower rod 50 is movable against the side wall of the headrest frame 1 to play a pre-buffering effect; as the assembly module 5 continues to move along the assembly direction (i.e. Figure 2The follower rod 50 and the buffer mold 51 are designed to move in a direction that moves to the left. At this time, the buffer mold 51 no longer moves synchronously with the assembly module 5, but moves relative to the assembly module 5 (that is, it does not move relative to the headrest frame 1). The front end of the outer guide sleeve 11 can be ensured to cross the auxiliary block 60 and be snapped into the headrest frame 1 under the buffering effect. The structural design of the follower rod 50 and the buffer mold 51 not only ensures that the outer guide sleeve 11 can be accurately assembled into the headrest frame 1, but also realizes the flexible assembly between the outer guide sleeve 11 and the headrest frame 1 through the moving characteristics of the buffer mold 51, effectively avoiding the outer guide sleeve 11 from being subjected to additional impact force during the assembly process, ensuring that the product structure is not damaged, and improving the success rate and reliability of assembly.

[0059] The assembly module 5 also includes: an assembly motor 52 and a material moving plate 53. The assembly motor 52 is arranged at the bottom of the workbench 2, and the output end of the assembly motor 52 is connected to the screw 520 with a transmission; a movable block 530 is provided on the material moving plate 53, and the movable block 530 is movable on the screw 520 so that the material moving plate 53 can reciprocate along the axial direction of the screw 520; a guide block 531 and a guide rail 20, the guide rail 20 is installed on the workbench 2 and is arranged parallel to the screw 520, the guide block 531 is connected to the material moving plate 53 and movably engages the guide rail 20; a fixed seat 54 and a guide rod 55, the fixed seat 54 is installed on the material moving plate 53, and the buffer paving die 51 is movably arranged at the end of the fixed seat 54 near the positioning module 4; the guide rod 55 is connected to the fixed seat 54 and passes through the buffer paving die 51, so as to movably rest against the end of the support rod 10.

[0060] Further, if Figures 1 to 3 As shown, after the outer guide sleeve 11 and the headrest frame 1 to be assembled are placed in place, the assembly motor 52 can be turned on to drive the screw 520 to rotate (force is transmitted through a synchronous belt drive, not shown in the figure), and the rotational motion of the screw 520 is converted into a linear motion of the shifting plate 53, so that the shifting plate 53 can quickly approach the contour seat 400 along the axis direction of the screw 520. During this process, the cooperation between the guide rail 20 and the guide block 531 effectively ensures that the movement of the shifting plate 53 is smooth and without deviation, thereby providing a guarantee for the assembly accuracy and quality. It should be noted that in the process of the shifting plate 53 approaching the contour seat 400 The overall moving speed is relatively fast, so as to save the displacement time of feeding. After approaching the contoured seat 400, the above-mentioned follower rod 50 can be movably pressed against the headrest frame 1. Relying on the installation method in which the follower rod 50 is hinged to the fixed seat 54, the follower rod 50 can simultaneously play the role of buffering and pressing against the headrest frame 1; not only that, the guide rod 55 can be pressed against the end of the support rod 10 in advance, so that the buffering mold 51 can smoothly drive the outer guide sleeve 11 to be sleeved on the support rod 10 and gradually approach the headrest frame 1, playing a guiding and limiting role during the assembly operation, ensuring that the outer guide sleeve 11 can be accurately assembled into the headrest frame 1.

[0061] The buffer paving die 51 includes: a buffer cylinder 510, connected to the end of the material moving plate 53, and the output end of the buffer cylinder 510 is connected to the buffer plate 511; a positioning seat 512, connected to the fixed seat 54, and the end of the positioning seat 512 is movably hinged with a buffer block 513, and the outer guide sleeve 11 movably rests against the buffer block 513; an outer guide sleeve paving die 514, installed on the buffer plate 511, and an accommodating cavity 515 is formed in the outer guide sleeve paving die 514, and the buffer block 513 extends into the accommodating cavity 515.

[0062] At the moment when the outer guide sleeve 11 and the headrest frame 1 are pressed against each other, that is, during assembly, the buffer cylinder 510 drives the buffer plate 511 to gradually move away from the contour seat 400. Figure 3 As shown, since the top end of the buffer block 513 is movably hinged to the positioning seat 512, and the buffer block 513 is located on the side of the outer guide sleeve backing 514 away from the contour seat 400, the buffer plate 511 cooperates with the synchronous movement of the buffer block 513, allowing the outer guide sleeve 11 to flexibly cross the auxiliary block 60 and snap into the headrest frame 1, pressing against the steel wire. In general, this overall structure not only enables the outer guide sleeve 11 to be assembled to quickly reach the assembly position, but also, through the cooperation of the buffer plate 511 and the buffer block 513, in conjunction with the auxiliary block 60, completes the flexible and stable snap-fit ​​assembly process of the outer guide sleeve 11 and the headrest frame 1. While ensuring the smoothness and accuracy of the overall assembly process, it also significantly improves production efficiency and product quality.

[0063] The positioning module 4 includes: a lifting plate 40, on which a contour seat 400 is provided, which is used to limit the movement of the headrest frame 1 to be assembled; a lifting cylinder 41, which is arranged at the bottom of the workbench 2, and the output end of the lifting cylinder 41 is connected to the lifting plate 40 to adjust the assembly height of the headrest frame 1; a shrinking component 42 that can move along the vertical direction through the workbench 2, the shrinking component 42 is located between the lifting plate 40 and the buffer backing 51, and a pre-pressing block 423 is provided on the shrinking component 42, which is movably pressed against the support rod 10.

[0064] like Figures 1 to 2As shown, when the material transfer module 3 places the headrest frame 1 to be assembled in the contour seat 400, the characteristics of the contour seat 400 can effectively limit the displacement of the headrest frame 1. Before the assembly operation starts, the retraction component 42 can drive the pre-pressing block 423 to extend from the bottom of the workbench 2 to one side of the support rod 10, and the pre-pressing block 423 is movably pressed on the support rod 10 of the headrest frame 1, thereby providing a guarantee for the overall stability of the headrest frame 1; as the above-mentioned transfer module 6 drives the auxiliary block 60 to press the headrest frame 1, and when the transfer module 6 grasps the headrest frame 1, the lifting cylinder 41 drives the lifting plate 40 to lift upward, thereby adjusting the height of the contour seat 400 and the headrest frame 1 relative to the workbench 2, ensuring that the support rod 10 on the headrest frame 1 can be aligned with the guide rod 55, thereby ensuring the smoothness and accuracy of the subsequent buffer mold 51 driving the outer guide sleeve 11 to accurately fit the support rod 10 and snap into the headrest frame 1. It can be seen that the positioning module 4 is adapted to headrest frames 1 of different sizes and types through various designs such as height adjustment, pre-pressing and fixing, and synchronous tightening, thereby improving the versatility of the tooling, realizing efficient and precise assembly of the headrest frame 1 and the outer guide sleeve 11, and effectively ensuring assembly quality and production efficiency.

[0065] The shrinking assembly 42 also includes: a shrinking cylinder 420, which is installed at the bottom of the workbench 2, and the output end of the shrinking cylinder 420 is connected to the lifting plate 421; a pre-stressing cylinder 422, which is distributed at both ends of the lifting plate 421 in the length direction, and the output end of the pre-stressing cylinder 422 is connected to the pre-stressing block 423, which is used to drive the pre-stressing block 423 close to or away from the support rod 10.

[0066] Further, if Figure 2 As shown, when the headrest frame 1 to be assembled is placed in the contoured seat 400, the retracting cylinder 420 can lift the pre-stressing cylinder 422 originally at the bottom of the tooling table 2 to one side of the support rod 10, so as to ensure that the pre-stressing cylinder 422 can drive the pre-stressing block 423 to be accurately pressed on the support rod 10, thereby providing a guarantee for the overall stability of the headrest frame 1 and also ensuring the smoothness and accuracy of the subsequent assembly of the outer guide sleeve 11. It should be noted that before the assembly operation is started, the retracting cylinder 420 can retract the pre-stressing cylinder 422 to the bottom of the tooling table 2 again to avoid position interference problems with the pre-stressing block 423 during the subsequent assembly operation, thereby ensuring the smoothness of the assembly tool during the implementation of the entire assembly process.

[0067] The transfer module 6 further comprises a horizontal linear guide rail 61 arranged on the tooling table 2, an output end of the horizontal linear guide rail 61 being connected with a vertical linear guide rail 62; a guide sleeve 63 and a blanking cylinder 64, an output end of the vertical linear guide rail 62 being connected with a mounting plate 620, a periphery of the lifting plate 40 being provided with a guide column 401, the guide sleeve 63 being connected with the mounting plate 620 and movably sleeved on the guide column 401; the blanking cylinder 64 being connected with the mounting plate 620 and used for grabbing the headrest framework 1; a positioning cylinder 65 being connected with the mounting plate 620, an output end of the positioning cylinder 65 being connected with the auxiliary block 60, so as to drive the auxiliary block 60 to movably abut against the headrest framework 1; and a conveying belt 66 being arranged on the tooling table 2 and used for moving the assembled product to outside of the tooling table 2.

[0068] As shown in Figures 2 to 4 , it should be noted that, in the process of assembling the outer guide sleeve 11 and the headrest framework 1, the horizontal linear guide rail 61 cooperates with the vertical linear guide rail 62 to move the mounting plate 620 to above the headrest framework 1, and with the driving of the vertical linear guide rail 62, the blanking cylinder 64 (which has the same structure and principle as the blanking jaw) can directly extend into the headrest framework 1 and grab it, that is, the blanking cylinder 64 can not only fix the headrest framework 1 during assembly, but also can perform blanking operation on the finished product at the first time after assembly, so as to facilitate subsequent feeding and assembly of the headrest framework 1 and the outer guide sleeve 11 which have not been assembled, greatly shortening the tact time, reducing unnecessary waiting time and material transfer time, and improving the overall operation efficiency of the equipment.

[0069] The auxiliary block 60 is outwardly extended at a bottom end to form a protruding block 600, the protruding block 600 being provided with a guide inclined surface 600a, the guide inclined surface 600a being used to guide the front end of the outer guide sleeve 11 to cross the protruding block 600 and be buckled in the headrest framework 1.

[0070] Preferably, as shown in Figure 2 and Figure 4 , the flexible adjustment of the position of the auxiliary block 60 by the positioning cylinder 65 enables the protruding block and the guide inclined surface 600a on the auxiliary block 60 to effectively guide the end of the outer guide sleeve 11 to cross and movably buckle into the headrest framework 1, ensuring the smoothness and accuracy during assembly, and also enabling the structure to adapt to headrest frameworks 1 of different shapes and sizes, improving the versatility and adaptability of the equipment. After assembly of the finished product is completed, the blanking cylinder 64 cooperates with the horizontal linear guide rail 61 and the vertical linear guide rail 62 to place the finished product on the conveying belt 66, thereby completing the blanking operation of the finished product.

[0071] The material moving module 3 includes: a fixed bracket 30, a driving guide rail 21 is arranged on the workbench 2, one end of the fixed bracket 30 is connected to the output end of the driving guide rail 21, and the other end is equipped with a detection column 31, the detection column 31 is used to detect the position of the headrest frame 1; a first grabbing cylinder 32 and a second grabbing cylinder 33 are arranged on the fixed bracket 30 in the vertical direction, the first grabbing cylinder 32 is symmetrically provided with a first clamping jaw 320 facing inward, and the second grabbing cylinder 33 is symmetrically provided with a second clamping jaw 330 facing outward, the spacing between the first clamping jaws 320 is smaller than the spacing between the second clamping jaws 330, and the first clamping jaw 320 and the second clamping jaw 330 are used to clamp the inner and outer walls of the headrest support rod 10 respectively to reduce the deformation of the headrest support rod 10; an adjustment component 34, which is movably arranged on the fixed bracket 30, and the adjustment component 34 is provided with a picking cylinder 340, which is used to grab and adjust the distance between the outer guide sleeve 11 to be assembled and the headrest frame 1.

[0072] like Figures 5 and 6 As shown, the drive rail 21 in this embodiment is composed of a longitudinal drive rail and a horizontal drive rail connected to each other, wherein the fixed bracket 30 is installed at the output end of the longitudinal drive rail. After the control system receives the signal from the detection column 31 that the headrest frame 1 and the outer guide sleeve 11 have moved into position, the first grasping cylinder 32 and the second grasping cylinder 33 can synchronously complete the grasping action on the headrest frame 1. During this process, the first clamping jaw 320 and the second clamping jaw 330 of this embodiment adopt an inner and outer clamping jaw design, which can evenly distribute the point of force while clamping, effectively avoiding unnecessary deformation of the semi-finished product during transportation, and ensuring that the appearance and quality of the product are not affected. For this reason, by adjusting the spacing between the first clamping jaw 320 or the second clamping jaw 330, the clamping member can be used to grasp headrest frames 1 of different sizes, with strong adaptability and flexibility.

[0073] The adjustment assembly 34 includes: a driving member 341, which is installed on the fixed bracket 30, and the output end of the driving member 341 is connected to the gear 342; a plurality of guide rods 343, and the fixed guide sleeve 300 is connected to the fixed bracket 30, and each fixed guide sleeve 300 is movably connected to the guide rod 343, and the end of the guide rod 343 is provided with a connecting plate 344, and the picking cylinder 340 is installed on the connecting plate 344; a moving rod 345, which is movably connected to the fixed bracket 30 and is arranged parallel to the guide rod 343, and a plurality of mutually connected convex teeth 345a are arranged in an array on the moving rod 345, and the convex teeth 345a are movably engaged with the gear 342.

[0074] Further, if Figures 5 and 6As shown, in addition to grasping the headrest frame 1, this embodiment can also pick up the outer guide sleeve 11. Specifically, when the driving member 341 drives the gear 342 to rotate, the gear 342 engages with the cam on the movable rod 345, causing the rotation of the gear 342 to cause the movable rod 345 to move along its axial direction, thereby achieving precise positioning of the picking cylinder 340 on the connecting plate 344, ensuring that the picking cylinder 340 can accurately clamp the outer guide sleeve 11. It is precisely because of the forward and reverse rotation of the driving member 341 that the picking cylinder 340 can move in both directions relative to the fixed bracket 30 (i.e., move closer or further away), thereby facilitating different work requirements. For example, the position of the picking cylinder 340 can be flexibly adjusted according to the different sizes or position requirements of the support rod 10, which also greatly facilitates the subsequent assembly steps of the outer guide sleeve 11. It should be noted that the driving member 341 in this embodiment can be replaced by other drive devices such as a stepper motor or servo motor.

[0075] Preferably, the workbench 2 in this embodiment is also provided with a mounting bracket 22, and the mounting bracket 22 is equipped with an inspection camera 220. The inspection camera 220 can detect the quality of the assembled product, and then effectively distinguish between defective products and qualified products, to ensure that the finished product can meet the customer's usage requirements during use.

[0076] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0077] In addition, terms such as "first," "second," and "an" in this utility model are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0078] In this utility model, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0079] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

Claims

1. A flexible assembly tool for a car headrest frame, used to assemble an outer guide sleeve into a headrest frame having a support rod, characterized in that: include: Workbench; A material transfer module is provided on the tooling table, and is used to grab and transfer the headrest frame and outer guide sleeve to be assembled; A positioning module and an assembly module, wherein the positioning module is used to fix the headrest frame; the assembly module is aligned with the positioning module, and the assembly module includes a follower rod and a buffering mold, wherein the follower rod can be moved and pressed against the side wall of the headrest frame when the assembly module approaches the positioning module; the buffering mold is used to accommodate the outer guide sleeve and can drive the outer guide sleeve to move along an assembly direction away from the assembly module; A transfer module is provided on the tooling table and is located above the positioning module. An auxiliary block is connected to the transfer module, and the auxiliary block is movably pressed against the top wall of the headrest frame. When the assembly module drives the buffer mold to sleeve the support rod and approach the headrest frame, the buffer mold can remain stationary relative to the headrest frame as the assembly module continues to move along the assembly direction, so that the front end of the outer guide sleeve can cross the auxiliary block and be movably snapped into the headrest frame.

2. The flexible assembly tool for automobile headrest frame according to claim 1, characterized in that: The assembly module also includes: An assembly motor and a material moving plate, wherein the assembly motor is arranged at the bottom of the tooling table, and the output end of the assembly motor is connected to a lead screw with a transmission; a movable block is provided on the material moving plate, and the movable block moves on the lead screw to allow the material moving plate to reciprocate along the axis of the lead screw; A guide block and a guide rail, wherein the guide rail is mounted on the tooling table and arranged parallel to the lead screw, and the guide block is connected to the material moving plate and movably engaged with the guide rail; A fixed seat and a guide rod, the fixed seat is installed on the material moving plate, and the buffering mold is movably arranged at the end of the fixed seat close to the positioning module; the guide rod is connected to the fixed seat and passes through the buffering mold to movably lean against the end of the support rod.

3. The flexible assembly tool for automobile headrest frame according to claim 1, characterized in that: The positioning module includes: A lifting plate, on which a contoured seat is disposed, the contoured seat being used to limit the movement of the headrest frame to be assembled; A lifting cylinder is provided at the bottom of the workbench, and an output end of the lifting cylinder is connected to the lifting plate to adjust the assembly height of the headrest frame; A shrinking component can be movably passed through the tooling table in a vertical direction, and the shrinking component is located between the lifting plate and the buffering mold. A pre-pressing block is provided on the shrinking component, and the pre-pressing block is movably pressed against the support rod.

4. The flexible assembly tool for automobile headrest frame according to claim 2, characterized in that: The buffer profile includes: A buffer cylinder is connected to the end of the material moving plate, and the output end of the buffer cylinder is connected to the buffer plate; A positioning seat is connected to the fixing seat, wherein the end of the positioning seat is movably hinged with a buffer block, and the outer guide sleeve movably abuts against the buffer block; The outer guide sleeve mold is installed on the buffer plate. An accommodating cavity is formed in the outer guide sleeve mold, and the buffer block extends into the accommodating cavity.

5. The flexible assembly tool for automobile headrest frame according to claim 3, characterized in that: The shrinking assembly further comprises: A retraction cylinder is installed at the bottom of the workbench, and an output end of the retraction cylinder is connected to a lifting plate; The pre-compression cylinders are distributed at both ends of the lifting plate in the length direction, and the output ends of the pre-compression cylinders are connected to the pre-compression blocks to drive the pre-compression blocks to move closer to or away from the support rods.

6. The flexible assembly tool for automobile headrest frame according to claim 1, characterized in that: The bottom end of the auxiliary block extends outward to form a protruding block, and a guiding slope is provided on the protruding block. The guiding slope is used to guide the front end of the outer guide sleeve to cross the protruding block and be snapped into the headrest frame.

7. The flexible assembly tool for automobile headrest frame according to claim 3, characterized in that: The transfer module also includes: A horizontal linear guide rail is arranged on the workbench, and an output end of the horizontal linear guide rail is connected to a vertical linear guide rail; Guide sleeve and blanking cylinder, the output end of the vertical linear guide rail is connected to a mounting plate, a guide column is provided at the periphery of the lifting plate, the guide sleeve is connected to the mounting plate and movably sleeved on the guide column; the blanking cylinder is connected to the mounting plate and is used to grab the headrest frame; A positioning cylinder is connected to the mounting plate, and an output end of the positioning cylinder is connected to the auxiliary block to drive the auxiliary block to move and press against the headrest frame; A conveyor belt is arranged on the tooling table and is used to move the assembled products to the outside of the tooling table.

8. The flexible assembly tool for automobile headrest frame according to claim 1, characterized in that: The material transfer module includes: A fixed bracket, wherein a driving guide rail is configured on the workbench, one end of the fixed bracket is connected to the output end of the driving guide rail, and the other end is installed with a detection column, and the detection column is used to detect the position of the headrest frame; A first grabbing cylinder and a second grabbing cylinder are vertically arranged on the fixing bracket, the first grabbing cylinder is symmetrically provided with first clamping jaws facing inward, and the second grabbing cylinder is symmetrically provided with second clamping jaws facing outward, the spacing between the first clamping jaws is smaller than the spacing between the second clamping jaws, and the first clamping jaws and the second clamping jaws are used to clamp the inner and outer walls of the headrest support rod respectively to reduce the deformation of the headrest support rod; An adjusting component is movably arranged on the fixing bracket. A picking cylinder is provided on the adjusting component. The picking cylinder is used to grab and adjust the distance between the outer guide sleeve to be assembled and the headrest frame.

9. The flexible assembly tool for automobile headrest frame according to claim 8, characterized in that: The adjustment component includes: A driving member is mounted on the fixed bracket, wherein the output end of the driving member is connected to a gear; A plurality of guide rods, wherein a fixed guide sleeve is connected in the fixed bracket, each of the fixed guide sleeves is movably connected to the guide rod, and a connecting plate is provided at the end of the guide rod, and the pickup cylinder is mounted on the connecting plate; The movable rod is movably connected to the fixed bracket and is arranged in parallel with the guide rod. A plurality of mutually connected convex teeth are arranged in an array on the movable rod, and the convex teeth are movably engaged with the gear.

10. The flexible assembly tool for automobile headrest frame according to claim 1, characterized in that: The workbench is also provided with a mounting bracket, and the mounting bracket is equipped with a detection camera, and the detection camera is used to detect the quality of the assembled product.

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