Rotary multi-station automatic assembling equipment for automobile door panel buckles

Abstract

The rotary multi-station automatic assembling equipment comprises a rotary table, a feeding station, an assembling station and a discharging station are sequentially arranged in the circumferential direction, the feeding station is provided with a buckle vibration disc and a feeding mechanism, the assembling station is provided with a gasket vibration disc and an assembling mechanism, the discharging station is provided with a discharging mechanism, and the gasket vibration disc is provided with a gasket vibration disc and an assembling mechanism. A plurality of positioning jigs are arranged on the rotary table, a groove embedded with the buckle base and positioning blocks distributed in the circumferential direction of the groove are arranged at the top end of the rotary table, and the positioning blocks can stably fix the buckles in the rotary process to prevent the buckles from falling off; in the stages of feeding, assembling and discharging, the positioning blocks can move outwards, interference is avoided, according to the structure, the positioning jig is reasonably designed to be matched with the rotation action, the problems of inaccurate positioning, serious interference and the like in the buckle assembling process of a traditional clamping groove conveying mode are solved, and the assembling precision and efficiency are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile parts assembly, in particular to a rotary multi-station automatic assembly device for automobile door panel buckles. Background Art

[0002] In the current domestic automotive door manufacturing industry, traditional manual labor is still prevalent in the door panel clip assembly process. This production method has significant technical shortcomings: on the one hand, complete reliance on manual operation leads to low assembly efficiency, difficulty in increasing production cycle time, and limited production output; on the other hand, a large number of skilled workers are required to perform intensive, repetitive tasks, which not only keeps labor costs high, but also easily leads to occupational health issues due to long-term work. Furthermore, the quality consistency of purely manual assembly is difficult to ensure, and product qualification rates fluctuate greatly. This backward production model can no longer meet the stringent requirements of high-quality development of the automotive manufacturing industry for production efficiency, cost control, and product quality. It is urgent to transform and upgrade the production method through automation and intelligent technology to resolve the contradiction between production efficiency and labor costs, improve the stability of assembly quality, and improve the working environment of workers.

[0003] In the prior art, for example, a Chinese invention patent application (publication number CN118875694A) discloses a multi-station automatic assembly machine and assembly method for automobile door panel buckles. The assembly machine includes a turntable and a first loading mechanism, a second loading mechanism, a pressing mechanism, and a unloading mechanism equidistantly arranged on the circumference of the turntable. The pressing mechanism includes a lifting plate; an adjustment component and a plurality of support rods extending in the vertical direction of the turntable are provided below the lifting plate; and an elastic rope ring is provided at the bottom of the support rod.

[0004] The above-mentioned assembly machine adopts the design of using an elastic rope ring to push the annular gasket to set the buckle, and the turntable drives the buckle through each working mechanism in sequence through the slot positioning to complete the assembly process. However, due to the small actual size of the buckle, there are obvious defects in the movement process: the slot and the buckle are not matched well, which causes the buckle to easily move, slide or even fall off during transportation and cannot maintain stable positioning; at the same time, the conventional slot structure has limited restraint force on the size buckle, and the buckle is more likely to deviate from the established track when the turntable runs at high speed. This transportation method based on the traditional slot is difficult to meet the process requirements of the buckle assembly. Summary of the Invention

[0005] In response to the problems existing in the prior art, a rotary multi-station automatic assembly equipment for automobile door panel buckles is provided. A positioning jig is arranged on a turntable, and a groove that can be engaged with the buckle base and a positioning block that can radially abut the buckle along the groove are provided at the top of the positioning jig. When the turntable rotates, the positioning block can stably fix the buckle to prevent it from detaching. During loading, assembly and unloading, the positioning block can move in a direction away from the buckle to prevent interference during loading, assembly and unloading, thereby solving the problem that the conveying method based on the traditional slot is difficult to meet the process requirements of the buckle assembly.

[0006] In order to solve the problems of the prior art, the present invention provides a rotary multi-station automatic assembly equipment for automobile door panel buckles, which is used to set the gasket on the buckle, including a turntable, and the turntable is provided with a loading station, an assembly station and an unloading station in sequence along its circumference. A buckle vibration plate and a loading mechanism are provided at the loading station, a gasket vibration plate and an assembly mechanism are provided at the assembly station, and a unloading mechanism is provided at the unloading station. Positioning fixtures are distributed along the circumference of the turntable, and the top of the positioning fixture is provided with a groove that can be engaged with the base of the buckle and positioning blocks distributed along the circumference of the groove. When the turntable rotates, the positioning block can abut on the buckle along the radial direction of the groove; during loading, assembling and unloading, the positioning block is away from the buckle along the radial direction of the groove.

[0007] Preferably, the positioning jig is also provided with an actuator capable of guiding the positioning block to move away from the buckle radially along the groove, and the loading station, assembly station and unloading station are all provided with triggering members capable of cooperating with the actuator. During the loading, assembly and unloading processes, the triggering member guides the actuator to drive the positioning block to move away from the buckle radially along the groove.

[0008] Preferably, the actuator includes a toothed disc and a rack, the toothed disc is rotatably arranged in the positioning jig, the toothed disc is coaxial with the groove, the toothed disc is provided with oblique grooves distributed along its circumference, the oblique grooves extend in a direction deviating from the radial direction of the toothed disc, the bottom end of the positioning block is provided with a guide pin extending into the oblique groove and slidingly cooperating with the rack, the rack passes through the positioning jig and engages with the toothed disc, and the trigger member is used to push the rack to slide relative to the positioning jig.

[0009] Preferably, the triggering member includes a linear push cylinder with the output end facing the turntable.

[0010] Preferably, the positioning jig is provided with a slide groove distributed along the circumference of the groove, the slide groove extends radially along the groove, a connecting block slidingly engaged with the slide groove is provided in the slide groove, the positioning block is provided at the top end of the connecting block, and the guide pin is provided at the bottom end of the connecting block.

[0011] Preferably, the slide groove is provided with a connecting rod extending along its length direction, and the connecting rod passes through the slider and is slidably engaged with the slider.

[0012] Preferably, an elastic element is provided between the end of the slide groove away from the groove and the connecting block.

[0013] Preferably, the positioning block has an abutting tip perpendicular to the axis of the groove, and an inclined surface is provided on the circumference of the abutting tip.

[0014] Preferably, the loading mechanism has the same structure as the unloading mechanism. The loading mechanism includes a finger cylinder that can be lifted and lowered and moved laterally at the loading station. A clamping block is provided at the clamping jaws of the finger cylinder, and the clamping block has a V-shaped groove extending longitudinally.

[0015] Preferably, the assembly mechanism includes a three-jaw cylinder that can be raised, lowered and moved laterally at the assembly station. A clamping plate is provided at the clamping jaws of the three-jaw cylinder, and a boss is provided on the inner side of the clamping plate facing the clamping jaws of the three-jaw cylinder. The boss is used to abut against the top of the gasket and press it onto the buckle when the clamping plate clamps the peripheral side of the gasket.

[0016] Compared with the prior art, the present invention has the following advantages: This application achieves precise positioning of the buckle during transportation by setting a positioning fixture on a turntable, opening an interlocking groove that matches the buckle base at the top of the positioning fixture, and configuring a radially movable positioning block: when the turntable rotates, the positioning block reliably abuts the buckle to ensure its stable fixation, effectively preventing displacement or falling off during transportation; at the loading and unloading and assembly stations, the positioning block can automatically avoid and radially exit the working position through the linkage between the trigger and the actuator on the positioning fixture, which not only ensures the smoothness of the process operation, but also avoids mechanical interference. This dynamic positioning mechanism breaks through the technical limitations of the traditional card slot conveying method. Through the synergistic effect of interlocking positioning and adjustable clamping, it solves the contradiction between the positioning stability of the buckle during transportation and the process accessibility, and provides a reliable solution for the assembly process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the buckle assembly.

[0018] Figure 2 It is a three-dimensional diagram of a rotary multi-station automatic assembly device for automobile door panel buckles according to the present invention.

[0019] Figure 3 The diagram is a top view of a rotary multi-station automatic assembly device for automobile door panel buckles according to the present invention.

[0020] Figure 4 It is a three-dimensional diagram of a feeding mechanism in a rotary multi-station automatic assembly device for automobile door panel buckles according to the present invention.

[0021] Figure 5It is a three-dimensional diagram of a positioning fixture in a rotary multi-station automatic assembly device for automobile door panel buckles according to the present invention.

[0022] Figure 6 It is a three-dimensional exploded view of a positioning fixture in a rotary multi-station automatic assembly device for automobile door panel buckles according to the present invention.

[0023] Figure 7 It is a three-dimensional diagram of an assembly mechanism in a rotary multi-station automatic assembly device for automobile door panel buckles according to the present invention.

[0024] Figure 8 yes Figure 7 A partial enlarged view of point A.

[0025] Figure 9 The present invention is a schematic diagram of a positioning jig in a rotary multi-station automatic assembly device for automobile door panel buckles during buckle loading.

[0026] Figure 10 The present invention is a schematic diagram of a positioning jig in a rotary multi-station automatic assembly device for automobile door panel buckles during gasket assembly.

[0027] The numbers in the figure are: 1. Turntable; 21. Snap-on vibration plate; 22. Loading mechanism; 221. Finger cylinder; 222. Clamping block; 31. Washer vibration plate; 32. Assembly mechanism; 331. Three-claw cylinder; 332. Clamping plate; 3321. Boss; 41. Unloading mechanism; 5. Positioning fixture; 51. Groove; 52. Positioning block; 521. Abutment tip; 53. Actuator; 531. Tooth plate; 5311. Bevel groove; 532. Rack; 533. Guide pin; 54. Slide groove; 55. Connecting block; 56. Connecting rod; 57. Elastic element; 6. Trigger. DETAILED DESCRIPTION

[0028] In order to further understand the features, technical means, specific objectives and functions achieved by the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] like Figure 1 、 Figure 2 and Figure 3As shown, a rotary multi-station automatic assembly equipment for automobile door panel buckles is used to set the gasket on the buckle, including a turntable 1. The turntable 1 is provided with a loading station, an assembly station and an unloading station in sequence along its circumference. A buckle vibration disk 21 and a loading mechanism 22 are provided at the loading station, a gasket vibration disk 31 and an assembly mechanism 32 are provided at the assembly station, and a unloading mechanism 41 is provided at the unloading station. Positioning fixtures 5 are distributed along the circumference of the turntable 1. The top of the positioning fixture 5 is provided with a groove 51 that can be engaged with the base of the buckle and positioning blocks 52 distributed circumferentially along the groove 51. When the turntable 1 rotates, the positioning block 52 can abut against the buckle along the radial direction of the groove 51; when loading, assembling and unloading, the positioning block 52 is radially away from the buckle along the groove 51.

[0030] The turntable 1 is used as a conveying unit, and the loading station, assembly station and unloading station are reasonably arranged along its circumferential direction to form a continuous and efficient assembly line.

[0031] At the loading station, the buckle vibration plate 21 and the loading mechanism 22 work together to ensure the directional supply of the buckle; the assembly station is equipped with a gasket vibration plate 31 and an assembly mechanism 32 to achieve precise fitting of the gasket; the unloading station completes the removal of the finished product through a special unloading mechanism 41.

[0032] A positioning fixture 5 is installed on the turntable 1. The interlocking groove 51 at its top precisely mates with the buckle base. Movable positioning blocks 52 are arranged circumferentially along the groove 51. During the rotary conveying phase, the positioning blocks 52 securely press against the buckle to ensure stable conveying. During the process operation phase, the positioning blocks 52 intelligently move out of the way, providing an unobstructed operating space for loading, assembly, and unloading. This dynamic positioning mechanism ensures both the buckle's positional accuracy during high-speed conveying and the smoothness of process operations at each station, effectively resolving the problems of unstable positioning and process interference that exist in traditional assembly equipment for micro-parts processing.

[0033] like Figure 3 As shown, the positioning fixture 5 is also provided with an actuator 53 that can guide the positioning block 52 to move away from the buckle along the radial direction of the groove 51. The loading station, assembly station and unloading station are all provided with a trigger member 6 that can cooperate with the actuator 53. During the loading, assembly and unloading processes, the trigger member 6 guides the actuator 53 to drive the positioning block 52 to move away from the buckle along the radial direction of the groove 51.

[0034] The positioning jig 5 also includes an actuator 53, which is connected to the positioning block 52 and is used to drive the positioning block 52 to move radially along the groove 51 during operation, specifically moving it away from the buckle, thereby automatically resetting or repositioning the positioning block 52. To achieve this function, triggering members 6 are provided at the loading, assembly, and unloading stations to trigger the actuator 53.

[0035] In the specific workflow, when the positioning fixture 5 moves to the loading, assembly, and unloading stations, the corresponding trigger member 6 engages or contacts the actuator 53, exerting force on the actuator 53, causing it to move the positioning block 52 radially away from the buckle along the groove 51. This movement not only releases the positioning block 52 from its original locked state but also creates smoother spatial conditions for subsequent workpiece loading, assembly operations, or finished product unloading, improving the consistency and efficiency of the entire automated operation process.

[0036] The above structure coordinates the movement of the positioning block 52 with the process progress by configuring the trigger member 6 at the key position, realizes the automatic control and adaptive adjustment of the positioning mechanism, avoids human intervention, and improves the intelligence level and working stability of the equipment.

[0037] like Figure 5 、 Figure 6 、 Figure 9 and Figure 10 As shown, the actuator 53 includes a toothed disc 531 and a rack 532. The toothed disc 531 is rotatably arranged in the positioning jig 5. The toothed disc 531 is coaxial with the groove 51. The toothed disc 531 is provided with oblique grooves 5311 distributed along its circumference. The oblique grooves 5311 extend in a direction deviating from the radial direction of the toothed disc 531. The bottom end of the positioning block 52 is provided with a guide pin 533 extending into the oblique groove 5311 and slidingly cooperating with it. The rack 532 passes through the positioning jig 5 and meshes with the toothed disc 531. The trigger member 6 is used to push the rack 532 to slide relative to the positioning jig 5.

[0038] In the positioning jig 5, the actuator 53 comprises a toothed disc 531 and a rack 532. The toothed disc 531 is a rotatable structure, coaxially arranged within the body of the positioning jig 5 along the central axis of the groove 51 and capable of rotation about its axis. The circumferential surface of the toothed disc 531 is provided with a plurality of evenly distributed beveled grooves 5311. These grooves 5311 extend inwardly from the circumference of the toothed disc 531, with their extension direction deviating from the radial direction of the toothed disc 531, forming a certain bevel angle to achieve radial guidance for the positioning block 52.

[0039] A guide pin 533 is provided at the bottom of the positioning block 52. This guide pin 533 extends vertically downward and is inserted into the aforementioned inclined slot 5311, forming a sliding fit with the inclined slot 5311. Due to the special arrangement of the inclined slot 5311, when the toothed disc 531 rotates, the inclined slot 5311 exerts a force component on the guide pin 533, thereby driving the positioning block 52 to move radially along the groove 51 in the fixture, particularly toward a position away from the buckle, thereby achieving the purpose of release or retreat.

[0040] The toothed disc 531 is driven by a meshing rack 532. The rack 532 is a linear sliding member that extends through the body of the positioning jig 5. One side of the rack's teeth meshes with the teeth of the toothed disc 531. The linear movement of the rack 532 drives the toothed disc 531 to rotate, thereby indirectly controlling the movement of the positioning block 52.

[0041] To automate the above-mentioned actions within the workflow, trigger members 6 are installed at the loading, assembly, and unloading stations. When the jig moves to the corresponding station, trigger member 6 contacts or presses against rack 532, pushing rack 532 to slide linearly relative to the main body of the positioning jig 5. The sliding of rack 532 in turn drives gear disc 531 to rotate, which, via the inclined slot 5311, drives guide pin 533, thereby moving the positioning block 52 radially along groove 51 to a position away from the buckle.

[0042] This structural arrangement enables full mechanical linkage and automatic triggering of the positioning block 52's drive control process, reducing manual operation while improving the equipment's collaborative efficiency and operational stability during loading, assembly, and unloading. Furthermore, this structure offers more compact space utilization, clear motion transmission, and excellent processing feasibility and engineering application value.

[0043] like Figure 3 As shown, the triggering member 6 includes a linear push cylinder with the output end facing the turntable 1.

[0044] The triggering element 6 specifically comprises a linear push cylinder mounted on the base of the device, with its output facing the turntable 1. This push cylinder can be pneumatic, hydraulic, or electric, with pneumatic being preferred for rapid response and high-frequency operation. The output of the push cylinder is a retractable structure capable of reciprocating in a linear direction in response to a control signal. Its axis of motion is arranged perpendicular or parallel to the trajectory of the jig, facilitating smooth coordination with the rack 532 provided in the jig.

[0045] During the specific working process, when the positioning jig 5 moves to the loading station, assembly station and unloading station in sequence with the turntable 1, the push cylinder at the corresponding position will receive the action command issued by the control system, drive its output end to extend straight out, and abut against the rack 532 set in the positioning jig 5, apply axial thrust, and cause the rack 532 to slide linearly relative to the positioning jig 5 body.

[0046] The rack 532 meshes with the toothed disc 531, and its sliding motion causes the toothed disc 531 to rotate. The inclined slot 5311 on the toothed disc 531 rotates accordingly, acting on the guide pin 533 inserted therein. This in turn causes the positioning block 52 to move radially along the groove 51, particularly away from the latch, thereby releasing or giving way. After the push cylinder completes its action, its output end automatically retracts to its initial position, preparing for the next jig or cycle.

[0047] like Figure 6 As shown, the positioning jig 5 is provided with a slide groove 54 distributed circumferentially along the groove 51, and the slide groove 54 extends radially along the groove 51. A connecting block 55 that slides with it is provided in the slide groove 54, and the positioning block 52 is provided at the top end of the connecting block 55, and the guide pin 533 is provided at the bottom end of the connecting block 55.

[0048] In the positioning fixture 5, a plurality of slide grooves 54 are distributed along the circumference of the groove 51, and each slide groove 54 extends along the radial direction of the groove 51. The whole is arranged radially outward from the center of the fixture, forming a multi-directional linkage guide structure.

[0049] Each chute 54 is provided with a connecting block 55, which forms a sliding fit with the chute 54 and can slide freely in the radial direction within the chute 54. To ensure smooth sliding and stable guiding function, the inner wall surface of the chute 54 can be precision machined or provided with a guide rail structure.

[0050] The connecting block 55 is designed as a one-piece, two-ended structure: a positioning block 52 is fixedly connected to its upper end, protruding upward from the fixture to limit, clamp, or position the workpiece. A guide pin 533 extends vertically downward from its lower end and is inserted into a circumferentially distributed inclined slot 5311 on the toothed disc 531. The guide pin 533 and the inclined slot 5311 form a sliding fit. When the toothed disc 531 rotates, the inclined guide formed by the inclined slot 5311 exerts a combined force on the guide pin 533, thereby driving the entire connecting block 55 to move radially within the slideway 54.

[0051] Through this structural design, when the toothed disc 531 rotates driven by the rack 532, the guide pin 533 in the inclined groove 5311 is displaced accordingly, thereby driving the connecting block 55 to slide radially along the slide groove 54, thereby realizing the automatic expansion or contraction operation of the positioning block 52. Especially when it is necessary to release the buckle or make way for other processes, it can ensure that the positioning block 52 retreats quickly and accurately to the predetermined position.

[0052] like Figure 6 As shown, a connecting rod 56 extending along the length direction of the sliding groove 54 is provided in the sliding groove 54, and the connecting rod 56 passes through the sliding block and is slidably engaged with the sliding block.

[0053] In the positioning jig 5, a connecting rod 56 is provided along the length of the chute 54. This connecting rod 56 serves as a guide member within the chute 54, extending through the interior of the slider and forming a sliding engagement with the slider. The combined design of the chute 54 and connecting rod 56 ensures the stability of the slider's motion while also enhancing the operational reliability of the positioning jig 5 under various operating conditions.

[0054] During operation, the slider slides axially within the chute 54 along the connecting rod 56. The force generated by the rotation of the toothed disc 531 drives the slider through the guide pin 533 to achieve linear reciprocating motion under the guidance of the connecting rod 56. The restraining effect of the connecting rod 56 on the slider not only effectively prevents radial shaking or deflection of the slider, but also ensures the linearity of its motion trajectory, thereby improving the accuracy and consistency of the movement of the positioning block 52.

[0055] When the jig enters a designated workstation, trigger member 6 pushes rack 532 to shift, which in turn rotates toothed disc 531. Guide pin 533, driven by beveled slot 5311, forces the slider to slide along connecting rod 56, thereby driving positioning block 52 within slot 54. Because connecting rod 56 provides continuous guidance, the slider remains stable even when the jig is operating at high speeds or undergoing frequent reciprocating motion, preventing shaking and misalignment caused by inertia or uneven force.

[0056] like Figure 6 As shown, an elastic element 57 is provided between the end of the sliding slot 54 away from the groove 51 and the connecting block 55 .

[0057] In the structural design of the slide groove 54, an elastic element 57 is provided between the end thereof away from the groove 51 and the connecting block 55, so as to provide an automatic reset force after the connecting block 55 completes a predetermined action, thereby ensuring that it returns to the initial standby state in time, thereby maintaining the cyclic stability and action consistency of the entire positioning mechanism.

[0058] The elastic element 57 is disposed within the inner side of the chute 54 or within the reserved cavity between the connecting block 55 and the end of the chute 54. Its installation direction aligns with the extension direction of the chute 54, typically in an axial arrangement. One end of the elastic element 57 is fixedly connected to the stop surface or inner wall at the end of the chute 54, while the other end is connected to the rear end of the connecting block 55. As the connecting block 55 moves toward the groove 51, the elastic element 57 is compressed and stores energy. When the external force is removed, the elastic potential energy is released, pushing the connecting block 55 to slide back to its original position.

[0059] During the operation of the equipment, when the trigger member 6 drives the rack 532 to slide, thereby causing the toothed disc 531 to rotate and push the guide pin 533 to drive the connecting block 55 to slide along the slide groove 54 toward the groove 51, the elastic element 57 is gradually compressed to store elastic potential energy; after the positioning action is completed or the external force is removed, the elastic element 57 automatically releases energy without external force obstruction, prompting the connecting block 55 to move in the opposite direction, driving the positioning block 52 to withdraw to its original position, completing the entire positioning-release-reset closed-loop cycle.

[0060] like Figure 9 and Figure 10 As shown, the positioning block 52 has an abutting tip 521 perpendicular to the axis of the groove 51 , and an inclined surface is provided on the periphery of the abutting tip 521 .

[0061] The structure of the positioning block 52 has been specifically optimized, and its front end is provided with an abutment tip 521 extending in a direction perpendicular to the axis of the groove 51. The tip is arranged in a conical or wedge shape and is used to achieve precise guidance and point contact limiting of the workpiece during the positioning process.

[0062] When the clip is delivered to the workstation, traditional vertical positioning structures are prone to problems such as "sticking" or "stuck and misaligned" due to certain positional tolerances and posture errors. The coordinated design of the abutment tip 521 and the circumferential inclined surface gradually "guides and corrects" the horizontal or angular errors of the workpiece to the target posture, achieving smooth insertion and automatic alignment, significantly reducing initial positioning sensitivity.

[0063] After the buckle assembly is complete, if automatic unloading is required, conventional vertical positioning blocks 52 may become stuck or blocked when disengaging. The inclined surface provides a gradual transition space, allowing the workpiece to smoothly disengage from the tip contact surface along the inclined direction when pushed or pulled, avoiding jamming or damage, and improving unloading smoothness and automation.

[0064] like Figure 4 As shown, the loading mechanism 22 has the same structure as the unloading mechanism 41. The loading mechanism 22 includes a finger cylinder 221 that can be raised and lowered and moved laterally at the loading station. A clamping block 222 is provided at the clamping claw of the finger cylinder 221, and the clamping block 222 has a V-shaped groove extending longitudinally.

[0065] The loading mechanism 22 and the unloading mechanism 41 share a common structural design, both comprising a finger cylinder 221 assembly capable of lifting and traversing at either the loading or unloading station. The finger cylinder 221, with its opening and closing structure, clamps the workpiece. A clamping block 222 is located at the front end of the clamping jaws. The clamping block 222 is machined longitudinally with a V-groove running through the structure to accommodate clips of various types and sizes. This V-groove provides excellent guidance and self-positioning capabilities, allowing the clip to automatically align between the clamping blocks 222 during the clamping process, improving clamping stability and repeatability.

[0066] To achieve coordinated lifting and lateral movement, the finger cylinder 221 is installed on a two-way linkage platform formed by a combination of a longitudinal slide and a transverse slide. The longitudinal slide is responsible for driving the cylinder to lift and lower vertically, allowing the clamping jaws to accurately align with the snap position or complete loading and unloading operations, while the transverse slide provides horizontal displacement capabilities, allowing the clamping jaws to flexibly switch between multiple workstations or areas to achieve tasks such as workpiece transportation, loading and unloading, or handover and transportation. Through the linkage between the two-level slides, the entire loading mechanism 22 can achieve flexible movement in three-dimensional space to adapt to the processing needs of workpieces at different heights, positions, and angles.

[0067] like Figure 7 and Figure 8 As shown, the assembly mechanism 32 includes a three-jaw cylinder 331 that can be raised, lowered, and moved laterally at the assembly station. A clamping plate 332 is provided at the clamping jaws of the three-jaw cylinder 331. A boss 3321 is provided on the inner side of the clamping plate 332 facing the clamping jaws of the three-jaw cylinder 331. The boss 3321 is used to abut against the top of the gasket and press it onto the buckle when the clamping plate 332 clamps the peripheral side of the gasket.

[0068] The three-jaw cylinder 331 clamps the workpiece in an embracing manner through a symmetrically opened and closed three-jaw structure, which can stably fix circular or annular components and is suitable for assembly operations of gasket-type parts. The ends of the jaws of the three-jaw cylinder 331 are each equipped with a clamping plate 332 for clamping. The clamping plate 332 is fixed to the front end of the jaw by a rigid connection or an adjustable structure, and a boss 3321 structure is provided on the clamping surface facing the inside of the cylinder. The boss 3321 protrudes from the surface of the clamping plate 332 in the vertical direction, and is used to push the upper surface of the gasket to the corresponding workpiece snap-on position while clamping the circumferential edge of the gasket, ensuring that the gasket can be accurately pressed and tightly fitted on the predetermined assembly position. The boss 3321 takes into account the outer diameter size of the gasket and its material properties during design, and has a certain guiding and buffering capacity to avoid deformation or scratches on the gasket during the clamping process, while improving assembly stability.

[0069] During use, the three-jaw cylinder 331 opens and closes in coordination, evenly advancing the clamping plate 332 to the outer periphery of the gasket. The clamping boss 3321 simultaneously applies balanced pressure in three directions, quickly and accurately positioning the gasket over the target buckle, and then pressing down to complete the fitting process. The three-point symmetrical force application structure effectively avoids misalignment or press-fit failure caused by unilateral force or tilted press-fitting, significantly improving assembly accuracy and process stability.

[0070] In order to achieve the coordinated cooperation of lifting and lateral movement, the three-claw cylinder 331 is installed on a two-way linkage platform formed by the combination of a longitudinal slide and a transverse slide.

[0071] The above embodiments merely represent one or more embodiments of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of protection of the present invention. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present invention, and such modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the appended claims.

Claims

1. A rotary multi-station automatic assembly equipment for automobile door panel buckles, used for setting gaskets on buckles, including a turntable, the turntable is provided with a loading station, an assembly station and a unloading station in sequence along its circumference, the loading station is provided with a buckle vibration plate and a loading mechanism, the assembly station is provided with a gasket vibration plate and an assembly mechanism, and the unloading station is provided with a unloading mechanism, characterized in that: There are positioning jigs distributed along the circumference of the turntable. The top of the positioning jig is provided with a groove that can be engaged with the base of the buckle and positioning blocks distributed along the circumference of the groove. When the turntable rotates, the positioning block can abut against the buckle along the radial direction of the groove; when loading, assembling and unloading, the positioning block moves away from the buckle along the radial direction of the groove.

2. The rotary multi-station automatic assembly equipment for automobile door panel buckles according to claim 1 is characterized in that: The positioning jig is also provided with an actuator that can guide the positioning block to move away from the buckle along the radial direction of the groove. The loading station, assembly station and unloading station are all provided with triggering members that can cooperate with the actuator. During the loading, assembly and unloading processes, the triggering member guides the actuator to drive the positioning block to move away from the buckle along the radial direction of the groove.

3. The rotary multi-station automatic assembly equipment for automobile door panel buckles according to claim 2 is characterized in that: The actuator includes a gear disc and a rack. The gear disc is rotatably arranged in the positioning jig. The gear disc is coaxial with the groove. The gear disc is provided with oblique grooves distributed along its circumference. The oblique grooves extend in a direction deviating from the radial direction of the gear disc. The bottom end of the positioning block is provided with a guide pin extending into the oblique groove and slidingly cooperating with the rack. The rack passes through the positioning jig and engages with the gear disc. The trigger is used to push the rack to slide relative to the positioning jig.

4. The rotary multi-station automatic assembly equipment for automobile door panel buckles according to claim 3 is characterized in that: The triggering component includes a linear push cylinder with an output end facing the turntable.

5. The rotary multi-station automatic assembly equipment for automobile door panel buckles according to claim 3 is characterized in that: The positioning fixture is provided with a slide groove distributed along the circumference of the groove, and the slide groove extends along the radial direction of the groove. A connecting block that slides with it is provided in the slide groove, the positioning block is provided at the top end of the connecting block, and the guide pin is provided at the bottom end of the connecting block.

6. The rotary multi-station automatic assembly equipment for automobile door panel buckles according to claim 5, characterized in that: The slide groove is provided with a connecting rod extending along the length direction thereof, and the connecting rod passes through the slider and is slidably engaged with the slider.

7. The rotary multi-station automatic assembly equipment for automobile door panel buckles according to claim 5, characterized in that: An elastic element is provided between an end of the sliding slot away from the groove and the connecting block.

8. The rotary multi-station automatic assembly equipment for automobile door panel buckles according to any one of claims 1 to 7, characterized in that: The positioning block has an abutting tip perpendicular to the axis of the groove, and an inclined surface is provided on the periphery of the abutting tip.

9. The rotary multi-station automatic assembly equipment for automobile door panel buckles according to any one of claims 1 to 7, characterized in that: The loading mechanism has the same structure as the unloading mechanism. The loading mechanism includes a finger cylinder that can be lifted and moved laterally at the loading station. A clamping block is provided at the clamping claw of the finger cylinder, and the clamping block has a V-shaped groove extending longitudinally.

10. The rotary multi-station automatic assembly equipment for automobile door panel buckles according to any one of claims 1 to 7, characterized in that: The assembly mechanism includes a three-jaw cylinder that can be raised and lowered and moved laterally at the assembly station. A clamping plate is provided at the clamping jaws of the three-jaw cylinder, and a boss is provided on the inner side of the clamping plate facing the clamping jaws of the three-jaw cylinder. The boss is used to abut against the top of the gasket when the clamping plate clamps the peripheral side of the gasket and press it onto the buckle.

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