An assembling device and method for a light guide strip and a lamp holder of a central instrument lamp of an automobile

By designing an automated assembly device, a cylinder and hydraulic buffer screw are used to achieve rapid and precise snap-fit ​​between the light guide strip and the lamp holder, solving the problems of low efficiency and misoperation in manual assembly, and improving assembly efficiency and safety.

CN122125918APending Publication Date: 2026-06-02BAODING LIFE AUTOMOTIVE LIGHTING GRP

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BAODING LIFE AUTOMOTIVE LIGHTING GRP
Filing Date
2026-03-24
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

In the existing technology, the assembly of the light guide strip and lamp holder of the central instrument light in automobiles relies on manual operation, which is inefficient, labor-intensive, and prone to problems such as missed pressing and incomplete pressing.

Method used

An assembly device was designed, including a frame, layered plates, upper and lower mounting plates, molds and a drive unit. The device achieves automated and rapid snap-fit ​​between the light guide strip and the lamp holder through a cylinder and a hydraulic buffer screw, ensuring precise snap-fit ​​assembly.

Benefits of technology

It enables quick and precise snap-fit ​​between the light guide strip and the lamp holder, improving assembly efficiency, reducing manual labor intensity, and avoiding problems such as missed pressing and inadequate pressing.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention relates to the field of automotive parts manufacturing technology, and discloses an assembly device for a light guide strip and lamp holder for an automotive central instrument light. The device includes a frame with a layered plate and a base plate on it, forming a working space between them. A lower mounting plate is located on the lower side of the working space, and a lower mold for supporting and positioning the light guide strip and lamp holder is mounted on the lower mounting plate. An upper mounting plate, which can be raised and lowered, is located on the upper side of the working space, and an upper mold is fixedly connected to it. A hydraulic buffer screw is located at the bottom of the upper mold corresponding to the snap-fit ​​position between the light guide strip and the lamp holder. A sliding bearing is located on the layered plate, and a guide rod is slidably mounted within the bearing. A spring is fitted onto the upper part of the guide rod, and a buffer stop is located at its end. The lower end of the guide rod is fixedly connected to the upper mounting plate. This assembly device can quickly press the snap-fit ​​of the light guide strip into the slot of the lamp holder, avoiding problems such as incomplete or missed snap-fit.
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Description

Technical Field

[0001] This invention relates to the field of automotive parts manufacturing technology, and in particular to an assembly device and method for automotive central instrument light guide strips and lamp holders. Background Technology

[0002] With the continuous development and innovation of the automotive industry and the continuous improvement of people's living standards, automobiles have become the main means of transportation. To enhance the refined experience for passengers, ambient lighting with light guides is now installed in specific locations within the vehicle, such as the dashboard or doors. Generally, dashboard light guides are assembled onto the lamp holder using clips. This is a crucial step in the dashboard light production process, and currently, the industry mostly uses manual assembly: operators must manually align the light guide with the clips and slots on the lamp holder, and then manually press to engage the clips. This method is inefficient and labor-intensive due to its reliance on manual operation; repeated pressing can easily cause hand fatigue and lead to missed or incomplete pressing. Summary of the Invention

[0003] One of the objectives of this invention is to provide an assembly device for a light guide strip and a lamp holder for a central instrument light in an automobile. This assembly device can quickly press the clips of the light guide strip into the slots of the lamp holder, and can avoid problems such as incomplete or missed engagement.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0005] An assembly device for a light guide strip and lamp holder for a car central instrument light includes a frame with a layered plate and a base plate on the frame. A working space is formed between the layered plate and the base plate. A lower mounting plate is provided on the lower side of the working space, and a lower mold for supporting and positioning the light guide strip and lamp holder is provided on the lower mounting plate. An upper mounting plate, which can be raised and lowered, is provided on the upper side of the working space. An upper mold is fixedly connected to the upper mounting plate, and a pressure rod is provided at the bottom of the upper mold corresponding to the snap-fit ​​position between the light guide strip and the lamp holder. A slide bearing is provided on the layered plate, and a guide rod is slidably disposed within the slide bearing. A spring is sleeved on the upper part of the guide rod, and a buffer stop is provided at the end. The lower end of the guide rod is fixedly connected to the upper mounting plate.

[0006] Preferably, a drive device is fixed on the upper side of the layered plate, the output shaft of the drive device faces downward and is fixedly connected to the upper mounting plate, and the guide rods are symmetrically arranged on both sides of the drive device.

[0007] Preferably, a sliding block that can slide back and forth is provided on the lower mounting plate, and the lower mold is fixedly connected to the sliding block.

[0008] Preferably, the lower mounting plate is fixed to the lower side of the frame, and two slide rails are provided on the lower mounting plate. The bottom of the slide is provided with a base that cooperates with the slide rails. It also includes a drive cylinder, and the output shaft of the drive cylinder is fixedly connected to the rear side of the slide.

[0009] Preferably, a plurality of support rods are fixedly connected to the lower side of the upper mounting plate, and the upper mold is fixedly connected to the lower end of the support rods; the pressure rod is a hydraulic buffer screw.

[0010] Preferably, a sliding rod is fixedly connected around the lower mounting plate, and a sliding hole is provided at the corresponding position on the upper mounting plate. A slide bearing is fixedly connected at the sliding hole, and the slide bearing is sleeved on the sliding rod and slides up and down along the sliding rod.

[0011] Preferably, it also includes a start switch and a control component, the control component being connected to the drive device, the start switch, the power supply, and the drive cylinder; the start switch is a double-button safety interlock switch; the control unit also includes a display screen.

[0012] Preferably, the working space is surrounded by protective panels and has an opening at the front; the upper side of the frame is also provided with a top plate, and a baffle is provided between the top plate and the layered plate.

[0013] Preferably, it also includes a safety light curtain disposed on both sides of the opening and electrically connected to the control component.

[0014] The second objective of this invention is to provide a method for assembling a light guide strip and a lamp holder for a central instrument light in an automobile. This assembly method uses the assembly device described above, and the process is simple and avoids the problem of missing presses and rework.

[0015] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0016] A method for assembling a light guide strip and lamp holder for a car central instrument panel light, using the assembly device described above, assembles the light guide strip and lamp holder on the car dashboard, specifically including the following steps:

[0017] Step 1: Control the output shaft of the drive cylinder to extend the drive slide and the lower mold forward to a position close to the opening;

[0018] Step 2: Place the light guide strip and lamp holder of the instrument panel on the lower mold, and align the positions of the clips on the light guide strip and lamp holder;

[0019] Step 3: Control the output shaft of the drive cylinder to retract and drive the slide and lower mold to retract to below the upper mold;

[0020] Step 4: Press the start switch with both hands. The control component controls the drive device to move the upper mounting plate and upper mold downwards quickly, and press the hydraulic buffer screw into the position of the light guide strip and lamp holder buckle and groove.

[0021] Step 5: The drive unit drives the upper mounting plate and upper mold to quickly return to their original positions;

[0022] Step 6: Again control the output shaft of the drive cylinder to extend the drive slide and the lower mold forward to a position close to the opening, and remove the locked light guide strip and lamp holder from the lower mold; repeat steps 1 to 5 to continue assembling the next light guide strip and lamp holder.

[0023] Compared with the existing technology, the present technical solution has the following beneficial effects:

[0024] The working space is located between the layered plate and the base plate. A lower mounting plate is located on the lower side of this working space, and it has a lower mold for supporting and positioning the light guide strip and lamp holder. An upper mounting plate, which can be raised and lowered, is located on the upper side of this working space. An upper mold is fixedly connected to the upper mounting plate. A pressure rod is located at the bottom of the upper mold corresponding to the snap-fit ​​positions of the light guide strip and lamp holder, and the pressure rod engages with the snap-fit. The instrument panel light guide strip and lamp holder are placed on the lower mold, aligning the snap-fit ​​and slot positions on the light guide strip and lamp holder. The lower mold moves the pressure rod downwards, pressing down on the snap-fit ​​or slot to engage them, thus snapping the light guide strip and lamp holder together. Multiple snap-fits on the light guide strip and lamp holder are assembled with a single press, improving work efficiency. Guide rods are provided to ensure the stability of the upper mounting plate's vertical movement. Furthermore, a spring is fitted onto the upper part of the guide rod, and a buffer stop is provided at the end. When the upper mounting plate moves downward, the guide rod follows and descends until the buffer stop contacts the spring. The spring is compressed and absorbs most of the downward impact force of the upper mounting plate, slowing down the contact speed between the pressure rod and the buckle or slot, while ensuring that the pressure rod has sufficient pressing force on the buckle or slot. Furthermore, the pressure rod is a hydraulic buffer screw used to buffer the downward impact force, ensuring precise engagement of the buckle. Attached Figure Description

[0025] Fig. 1 This is a three-dimensional structural diagram of the present invention;

[0026] Fig. 2 This is a three-dimensional structural schematic diagram of the invention from a second angle (without the protective plate and top plate);

[0027] Fig. 3 This is a front view of the present invention;

[0028] Fig. 4 This is a three-dimensional structural diagram of the lower mounting plate and lower mold of the present invention.

[0029] In the diagram: 1. Frame; 2. Layered plate; 3. Base plate; 4. Upper mounting plate; 5. Upper mold; 6. Pressure rod; 7. Second bearing; 8. Guide rod; 9. Buffer stop; 10. Lower mounting plate; 11. Slide block; 13. Lower mold; 14. Drive device; 15. Start switch; 16. Control components; 17. Guard plate; 18. Top plate; 19. Baffle; 20. Slide rail; 21. Drive cylinder; 22. Support rod; 23. Slide rod; 24. Second bearing; 25. Safety light curtain; 26. Emergency stop button; 27. Limiting protrusion. Detailed Implementation

[0030] The embodiments of the present invention will be further described below with reference to the accompanying drawings:

[0031] As attached Figs. 1 to 4 As shown, an assembly device for a light guide strip and lamp holder of an automotive central instrument light includes a frame 1, on which a layered plate 2 and a base plate 3 are provided. The space between the layered plate 2 and the base plate 3 is a working space. A lower mounting plate 10 is provided on the lower side of the working space, and a lower mold 13 for supporting and positioning the light guide strip and lamp holder is provided on the lower mounting plate 10. An upper mounting plate 4, which can be raised and lowered, is provided on the upper mounting plate 4, and an upper mold 5 is fixedly connected to the upper mounting plate 4. A pressure rod 6 is provided at the bottom of the upper mold 5 corresponding to the position of the light guide strip and lamp holder snap-fit, and the pressure rod 6 engages with the snap-fit. The instrument light light guide strip and lamp holder are placed on the lower mold 13, and the snap-fit ​​and slot positions on the light guide strip and lamp holder are aligned. The lower mold 5 drives the pressure rod downwards, and the pressure rod 6 presses down on the snap-fit ​​or slot to engage them, thus snapping the light guide strip and lamp holder together. Furthermore, multiple snap-fits on the light guide strip and lamp holder are assembled by a single press, improving work efficiency.

[0032] A slide bearing 7 is provided on the layered plate 2, and a guide rod 8 is slidably arranged inside the slide bearing 7. The lower end of the guide rod 8 is fixedly connected to the upper mounting plate 4 and moves up and down with the upper mounting plate 4 to ensure the stability of the upper mounting plate 4's vertical movement. Furthermore, a spring (not shown in the attached diagram) is sleeved on the upper part of the guide rod 8, and a buffer stop 9 is provided at the end. When the upper mounting plate 4 moves downward, the guide rod 8 follows and descends until the buffer stop 9 contacts the spring. This is the first stroke, and the upper mounting plate 4 descends quickly, saving time. This provides sufficient height in the working space for workers to easily replace the instrument panel light guide strip and lamp holder, without affecting the production rhythm of the light guide strip and lamp holder. Afterward, the upper mounting plate 4 continues to descend rapidly. At this time, the spring is compressed and absorbs the downward impact force of the upper mounting plate 4, slowing down the contact speed between the pressure rod 6 and the buckle or slot, while ensuring that the pressure rod 6 has sufficient pressing force on the buckle or slot. Furthermore, the pressure rod 6 is a hydraulic buffer screw used to buffer the downward impact force and ensure precise buckle engagement.

[0033] In a preferred embodiment, slide rods 23 are fixedly connected around the lower mounting plate 10, and slide holes are provided at corresponding positions on the upper mounting plate 4. Slide bearings 24 are fixedly connected to the slide holes, and the slide bearings 24 are sleeved on the slide rods 23 and slide up and down on the slide rods 23. This further ensures the smoothness of the movement of the upper mounting plate 4 and the upper mold 5.

[0034] In a preferred embodiment, a top plate 18 is provided on the upper side of the frame 1, and a baffle 19 is provided between the top plate 18 and the layered plate 2. A storage space is formed between the top plate 18, the layered plate 2, and the baffle 19. A drive device 14 and control components (not shown in the figures) are provided in the equipment room. The drive device 14 is fixedly installed on the upper side of the layered plate 2, and the output shaft of the drive device 14 passes through the layered plate 2 and faces downward and is fixedly connected to the upper mounting plate 4. The drive device 14 drives the upper mounting plate 4 and the upper mold 5 to move up and down. Preferably, the drive device 14 is a vertically moving cylinder. Further, guide rods 8 are symmetrically arranged on both sides of the drive device 14.

[0035] In a preferred embodiment, the lower mounting plate 10 is fixedly connected to the base plate 3 on the lower side of the frame 1, and two slide rails 20, preferably THK slide rails, are provided on the lower mounting plate 10. A slide block 11 is slidably arranged on the slide rail 20, and the lower mold 13 is fixedly connected to the slide block 11. Preferably, a base 12 that cooperates with the slide rail 20 is provided at the bottom of the slide block 11. The system also includes a drive cylinder 21, the output shaft of which is fixedly connected to the rear side of the slide block 11. The drive cylinder 21 drives the slide block 11 to slide along the slide rail 20 toward the outer side of the work area, which is convenient for workers to install or remove the instrument panel light guide strip and lamp holder. For example, when it is necessary to install the instrument panel light guide strip and lamp holder, the drive cylinder 21 drives the slide block 11 and the lower mold 13 to move forward to the open position of the work space. After the installation is completed, the drive cylinder 21 drives the slide block 11 and the lower mold 13 to move backward to below the upper mold.

[0036] In a preferred embodiment, a plurality of support rods 22 are fixedly connected to the lower side of the upper mounting plate 4, preferably six rods, and the upper mold 5 is fixedly connected to the lower end of the support rods 55. This provides space for the hydraulic buffer screws via the support rods 22, and the structure is simple and easy to install.

[0037] In a preferred embodiment, the workspace is surrounded by protective panels 17, which are made of transparent plexiglass to allow observation of the work process and prevent foreign objects from entering. An opening is provided at the front of the workspace for loading and unloading workpieces. Furthermore, a safety light curtain 25 is included, located on both sides of the opening and electrically connected to the control components. When the safety light curtain 25 is blocked, the equipment immediately stops operating to prevent personal injury caused by hands entering the workspace.

[0038] In a preferred embodiment, the system further includes a start switch 15 and a control component (not shown in the figures). The control component is connected to the drive unit 14, the start switch 15, the power supply, and the drive cylinder 21, and is used to control the operation of the equipment. The control unit also includes a display screen for setting equipment parameters. The control component and related electrical components are housed within a storage space. Furthermore, the start switch 15 is a double-button safety interlock switch; it is symmetrically positioned on the outside of the opening of the work space, allowing the equipment to be started by pressing both hands simultaneously, preventing accidental operation with one hand.

[0039] In a preferred embodiment, a power indicator light is provided on the outer side of the upper side of the rack 1 to indicate the power-on status of the equipment. An emergency stop button is also included, which is installed on the lower outer side of the rack 1 and electrically connected to the control components. Pressing the button in an emergency will cut off the power to the equipment and stop all operations.

[0040] In a preferred embodiment, the frame 1 is made of aluminum alloy as the main support structure, which combines strength and lightweight characteristics.

[0041] This application also provides a method for assembling a light guide strip and lamp holder for a central instrument panel light in an automobile. The assembly device for the light guide strip and lamp holder using the above-described technical solution assembles the light guide strip and lamp holder on the automobile dashboard, specifically including the following steps:

[0042] Step 1: Control the output shaft of the drive cylinder 21 to extend the drive slide 11 and the lower mold 13 forward to a position close to the opening;

[0043] Step 2: Place the light guide strip and lamp holder of the instrument panel on the lower mold 13, and align the positions of the clips and slots of the light guide strip and lamp holder;

[0044] Step 3: Control the output shaft of the drive cylinder 21 to retract and drive the slide block 11 and the lower mold 13 to retract to below the upper mold 5;

[0045] Step 4: Press the start switch 15 with both hands. The control component controls the drive device 14 to drive the upper mounting plate 4 and the upper mold 5 to move downward quickly, and make the hydraulic buffer screw 6 press against the position of the light guide strip and the lamp holder buckle.

[0046] Step 5: The drive device 14 drives the upper mounting plate 4 and the upper mold 5 to quickly retract and reset;

[0047] Step 6: Control the output shaft of the drive cylinder 21 to extend the drive slide 11 and the lower mold 13 forward to a position close to the opening, and remove the light guide strip and lamp holder that are locked together from the lower mold 13.

[0048] Step 7: Repeat steps 1 to 5 to continue assembling the next light guide strip and lamp holder.

[0049] The embodiments are merely illustrative of the concept and implementation of the present invention and are not intended to limit it. Under the concept of the present invention, technical solutions without substantial changes are still within the scope of protection.

Claims

1. An assembly device for a light guide strip and lamp holder for a central instrument panel light in an automobile, comprising a frame, characterized in that, The frame is equipped with a layered plate and a base plate, with a working space between them. A lower mounting plate is located on the lower side of the working space, and a lower mold is provided on the lower mounting plate to support and position the light guide strip and the lamp holder. An upper mounting plate that can be raised and lowered is located on the upper side of the working space, and an upper mold is fixedly connected to the upper mounting plate. A pressure rod is provided at the bottom of the upper mold corresponding to the position where the light guide strip and the lamp holder are snapped together. A slide bearing is provided on the layered plate, and a guide rod is slidably arranged in the slide bearing. A spring is sleeved on the upper part of the guide rod, and a buffer stop is provided at the end. The lower end of the guide rod is fixedly connected to the upper mounting plate.

2. The assembly device for the automotive central instrument light guide strip and lamp holder as described in claim 1, characterized in that, A drive device is fixed on the upper side of the layered plate. The output shaft of the drive device faces downward and is fixedly connected to the upper mounting plate. The guide rods are symmetrically arranged on both sides of the drive device.

3. The assembly device for the automotive central instrument light guide strip and lamp holder as described in claim 2, characterized in that, A sliding block is provided on the lower mounting plate, and the lower mold is fixedly connected to the sliding block.

4. The assembly device for the automotive central instrument light guide strip and lamp holder as described in claim 3, characterized in that, The lower mounting plate is fixed to the lower side of the frame, and two slide rails are provided on the lower mounting plate. The bottom of the slide is provided with a base that cooperates with the slide rails. It also includes a drive cylinder, and the output shaft of the drive cylinder is fixedly connected to the rear side of the slide.

5. The assembly device for the automotive central instrument light guide strip and lamp holder as described in claim 1, characterized in that, Several support rods are fixedly connected to the lower side of the upper mounting plate, and the upper mold is fixedly connected to the lower end of the support rods; the pressure rod is a hydraulic buffer screw.

6. The assembly apparatus for the light guide strip and lamp holder of the automotive central instrument light as described in claim 1, characterized in that, A sliding rod is fixedly connected around the lower mounting plate, and a sliding hole is provided at the corresponding position on the upper mounting plate. A sliding bearing is fixedly connected at the sliding hole, and the sliding bearing is sleeved on the sliding rod and slides up and down along the sliding rod.

7. The assembly device for the automotive central instrument light guide strip and lamp holder as described in claim 1, characterized in that, It also includes a start switch and a control component, the control component being connected to the drive device, start switch, power supply and drive cylinder; the start switch is a double-button safety interlock switch; the control unit also includes a display screen.

8. The assembly device for the automotive central instrument light guide strip and lamp holder as described in claim 1, characterized in that, The workspace is surrounded by protective panels and has an opening at the front; the frame is also provided with a top plate, and a baffle is provided between the top plate and the layered plate.

9. The assembly device for the automotive central instrument light guide strip and lamp holder as described in claim 8, characterized in that, It also includes safety light curtains, which are disposed on both sides of the opening and electrically connected to the control components.

10. A method for assembling a light guide strip and lamp holder for a central instrument panel light in an automobile, characterized in that, The assembly apparatus for the light guide strip and lamp holder of the automotive central instrument light according to any one of claims 1 to 9 is used to assemble the light guide strip and lamp holder on the automotive dashboard, specifically including the following steps: Step 1: Control the output shaft of the drive cylinder to extend the drive slide and the lower mold forward to a position close to the opening; Step 2: Place the light guide strip and lamp holder of the instrument panel on the lower mold, and align the positions of the clips on the light guide strip and lamp holder; Step 3: Control the output shaft of the drive cylinder to retract and drive the slide and lower mold to retract to below the upper mold; Step 4: Press the start switch with both hands. The control component controls the drive device to move the upper mounting plate and upper mold downwards quickly, and press the hydraulic buffer screw into the position of the light guide strip and lamp holder buckle and groove. Step 5: The drive unit drives the upper mounting plate and upper mold to quickly return to their original positions; Step 6: Again control the output shaft of the drive cylinder to extend the drive slide and the lower mold forward to a position close to the opening, and remove the locked light guide strip and lamp holder from the lower mold; repeat steps 1 to 5 to continue assembling the next light guide strip and lamp holder.