Crimping device of vehicle-mounted screen FPC

Abstract

The utility model provides a crimping device of a vehicle-mounted screen FPC, which is characterized in that the crimping device comprises at least one group of crimping modules provided with pressure heads, and each crimping module specifically comprises an X-direction driving module used for adjusting the position of the pressure head in the X direction; and the crimping module is arranged on the X-direction driving module and specifically comprises a Y-direction receding mechanism and a Z-direction crimping mechanism arranged on the Y-direction receding mechanism, a pressing assembly is arranged at the driving end of the Z-direction crimping mechanism, and the Y-direction receding mechanism is used for moving the Z-direction crimping mechanism right above the pressing head backwards and restoring the Z-direction crimping mechanism to the original position. And the Z-direction crimping mechanism is used for driving the pressing assembly to press downwards. By arranging the Y-direction yielding mechanism, a barrier-free operation space is created right above the pressure head, so that a product to be tested can be stably placed on the pressure head from top to bottom in an accurate and errorless manner, and the innovative design greatly improves the success probability of placing the product to be tested on the pressure head.

Description

TECHNICAL FIELD

[0001] The utility model discloses display panel detection field especially relates to a kind of crimping device of vehicle-mounted screen FPC. BACKGROUND

[0002] In the prior art of crimping device technical field, a plurality of functional components are configured above the pressing head, aiming to achieve efficient and accurate crimping operation. This makes the positioning of the crimping end of the product under test before crimping a problem that needs to be solved. Specifically, since the crimping end is generally made of flexible circuit board material, this material is prone to sagging or bending during positioning by moving to the upper side of the pressing head due to its inherent softness and variability. This sagging or bending not only significantly increases the complexity and technical difficulty of the crimping operation, but more importantly, it directly and severely affects the success rate of crimping. When the crimping end cannot maintain the required horizontal position due to sagging, or is blocked by other components due to sagging at the end, resulting in failure to move smoothly under the pressing head for crimping, the entire product testing or production process will be disrupted, directly leading to the failure of the product under test. This phenomenon not only significantly reduces production efficiency and greatly increases scrap rates, but also poses a significant obstacle and challenge to effective control of production costs and stable improvement of product quality. SUMMARY

[0003] To solve all or part of the problems of the prior art, the utility model provides a crimping device for vehicle-mounted screen FPC, which creates an unobstructed operating space above the pressing head by providing a Y-direction retreat mechanism, ensuring that the product under test can be placed smoothly on the pressing head in a precise and accurate manner from top to bottom. This innovative design greatly improves the success probability of placing the product under test on the pressing head.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0005] A crimping device for vehicle-mounted screen FPC, comprising at least one crimping module provided with a pressing head, the crimping module specifically comprising:

[0006] An X-direction drive module for adjusting the position of the pressing head in the X-direction;

[0007] A crimping module provided on the X-direction drive module, specifically comprising a Y-direction retreat mechanism and a Z-direction crimping mechanism provided on the Y-direction retreat mechanism, the drive end of the Z-direction crimping mechanism being provided with a pressing assembly, the Y-direction retreat mechanism being used to move the Z-direction crimping mechanism above the pressing head backward and restore to the original position, and the Z-direction crimping mechanism being used to drive the pressing assembly to press down.

[0008] The crimping die set further comprises a θ direction correction mechanism and a vision unit arranged on the Y direction retreat mechanism, the vision unit is used for taking pictures of the pressure head and the product to be tested, and the θ direction correction mechanism is used for adjusting the position of the pressure head in the θ direction.

[0009] The crimping die set comprises a base, the Y direction retreat mechanism is installed on the base through a support frame, the Y direction retreat mechanism comprises a second transmission rod, a sliding seat and a Y shaft motor, one end of the second transmission rod is connected with the output end of the Y shaft motor, and the sliding seat is installed on the second transmission rod and moves on the second transmission rod under the driving of the Y shaft motor.

[0010] The Z direction crimping mechanism and the vision unit are installed on the sliding seat, the vision unit comprises a camera and a light source, the shooting range of the camera and the illumination range of the light source are the crimping position of the pressure head.

[0011] Two parallel second guide rails are further arranged on the support frame, the bottom of the sliding seat is provided with a sliding block corresponding to the second guide rails, and the sliding seat is movably installed on the second guide rails through the sliding block.

[0012] The crimping die set comprises a base, the θ direction correction mechanism is arranged on the base, and the pressure head is arranged at the driving end of the θ direction driving mechanism; the θ direction correction mechanism comprises a hollow rotating platform and a θ direction motor, the output end of the θ direction motor is connected with the input end of the hollow rotating platform, and the output end of the hollow rotating platform is connected with the pressure head through a first connecting plate.

[0013] The θ direction correction mechanism further comprises a displacement sensing device, specifically comprising a sensing block arranged on the first connecting plate, and a first sensor and a second sensor arranged on the base and corresponding to the sensing block, the first sensor corresponds to the initial position of the pressure head, and the first sensor corresponds to the rotation limit position.

[0014] The X direction driving module comprises two parallel first guide rails, and further comprises two X direction driving mechanisms arranged in parallel between the two first guide rails; the X direction driving mechanism comprises a first transmission rod and an X shaft motor, one end of the first transmission rod is connected with the output end of the X shaft motor; the base is movably installed on the first transmission rod through a nut block and moves on the first transmission rod under the driving of the X shaft motor.

[0015] An installation hole and a retreat hole are arranged on the base, the base is installed on the first transmission rod through the installation hole and a connecting block, the retreat hole is used for avoiding the first transmission rod of another set of crimping die sets, and the bottom of the base is provided with a sliding block matched with the first guide rail.

[0016] It also includes a controller, which is located below the crimping module and is electrically connected to the crimping head via a wire.

[0017] This utility model has at least the following beneficial effects:

[0018] 1) By integrating an X-axis drive module, a Y-axis retraction mechanism, and a θ-axis correction mechanism, precise, all-around control of the pressure head position is achieved. Before crimping, the Y-axis retraction mechanism automatically removes relevant components above the pressure head, providing unobstructed placement space for the crimping end of the product under test and effectively preventing sagging or bending of the flexible circuit board during movement. Simultaneously, the θ-axis correction mechanism fine-tunes the pressure head position based on image information captured by the vision unit, ensuring a perfect correspondence between the crimping point of the product under test and the crimping point of the pressure head, thereby significantly improving crimping accuracy and success rate.

[0019] 2) The X-axis drive module employs two parallel first guide rails. The clearance holes on the base effectively prevent mutual interference between adjacent crimping modules during movement, allowing multiple crimping modules to operate simultaneously, independently, and precisely. Furthermore, the displacement sensing device further enhances the safety and stability of the equipment, effectively preventing damage or poor crimping caused by excessive rotation. These designs enable the crimping device of this invention to exhibit stronger compatibility and stability when adapting to different models and specifications of products under test. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the specific embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of a crimping device for a vehicle-mounted screen FPC according to an embodiment of this utility model.

[0022] Figure 2 Provided for the embodiments of this utility model Figure 1 A schematic diagram of the medium-pressure connection module.

[0023] Figure 3 Provided for the embodiments of this utility model Figure 2 Side view of the pressing module when the Y-axis retraction mechanism is in its initial position.

[0024] Figure 4 Provided for the embodiments of this utility model Figure 2 Side view of the pressing module when the Y-axis retraction mechanism moves backward.

[0025] Reference numerals: 1-X-axis drive module; 101-first guide rail; 102-X-axis drive mechanism; 1021-first transmission rod; 1022-X-axis motor; 2-pressing module; 201-base; 2011-support frame; 202-Y-axis retraction mechanism; 203-Z-axis pressing mechanism; 204-vision unit; 2041-camera; 2042-light source; 205-θ-axis correction mechanism; 2051-displacement sensing device; 3-stage; 4-controller. Detailed Implementation

[0026] The technical solutions in specific embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] In this embodiment of the utility model, in conjunction with reference to the reference Figures 1 to 4 As shown, a crimping device for automotive-grade FPC (flexible printed circuit board) is provided. This device includes a platform 3, on which at least one set of crimping modules are integrated. Each crimping module is equipped with a crimping head for crimping. Specifically, the crimping module includes an X-axis drive module 1 and a crimping module 2. The X-axis drive module 1 is responsible for adjusting the position of the crimping head along the X-axis direction to ensure horizontal displacement accuracy during crimping. The crimping module 2 is mounted on the X-axis drive module 1 and is responsible for adjusting the position of the crimping head in the θ-axis direction and performing crimping operations in the Z-axis direction to meet complex crimping requirements. The crimping module 2 further includes a Y-axis retraction mechanism 202, a θ-axis correction mechanism 205, a Z-axis crimping mechanism 203, and a vision unit 204. The Y-axis retraction mechanism 202 automatically and smoothly removes components located directly above the crimping head before crimping, ensuring unobstructed placement of the product under test from top to bottom. The θ-axis correction mechanism 205 fine-tunes the position of the crimping head in the rotational direction (θ-axis) to ensure complete alignment between the crimping head and the product under test, reducing crimping defects caused by angular deviations. The Z-axis crimping mechanism 203 performs the crimping operation in the Z-axis direction. The vision unit 204 is responsible for photographing the crimping head and the product under test, achieving precise positioning through image processing algorithms, and providing reliable data support for the crimping operation.

[0028] Specifically, the crimping die set 2 is designed with a base 201, a theta correction mechanism 205 is installed on the base 201, and a pressure head is arranged at the driving end of the theta driving mechanism to realize rotation adjustment. The theta correction mechanism 205 is mainly composed of a hollow rotating platform and a theta motor, the output end of the theta motor is connected with the input end of the hollow rotating platform to form a driving system, and the output end of the hollow rotating platform is connected with the pressure head through a first connecting plate to ensure the transmission of the rotating action. In addition, in order to further improve the precision and safety of the crimping operation, the theta correction mechanism 205 is also provided with a displacement sensing device 2051. The device is composed of a sensing block arranged on the first connecting plate, and a first sensor and a second sensor installed on the base 201 and accurately corresponding to the sensing block. Among them, the first sensor is accurately arranged at the initial position of the pressure head, which is used to monitor the state before the pressure head starts to rotate; and the second sensor corresponds to the limit position of rotation, which ensures that the pressure head will not exceed the safety range in the rotation process, thereby effectively preventing equipment damage or poor crimping caused by excessive rotation.

[0029] A support frame 2011 is also installed on the base 201, the theta correction mechanism 205 is installed in the hollow interior space of the support frame 2011, and a Y-retreating mechanism 202 is installed on the top of the support frame 2011. The Y-retreating mechanism 202 is mainly composed of a second transmission rod, a sliding seat and a Y-axis motor, wherein one end of the second transmission rod is connected with the output end of the Y-axis motor to form an efficient driving system. The sliding seat is matched and installed on the second transmission rod, and the sliding seat can smoothly and stably move along the second transmission rod under the drive of the Y-axis motor, thereby realizing accurate retreat in the Y direction. The Z-direction crimping mechanism 203 and the visual unit 204 are arranged on the sliding seat. Among them, the Z-direction crimping mechanism 203 includes a Z-axis motor and a pressing assembly, the pressing assembly is installed at the driving end of the Z-axis motor, and can realize accurate crimping action in the Z-axis direction. The visual unit 204 integrates a camera 2041 and a light source 2042, the camera 2041 and the light source 2042 are respectively installed on the support frame 2011 through connecting pieces, and the shooting range of the camera 2041 and the illumination range of the light source 2042 are both set as the crimping position of the pressure head, thereby ensuring the visual positioning accuracy in the crimping process. In addition, in order to enhance the stability and movement precision of the sliding seat, two parallel second guide rails are arranged on the top of the support frame 2011. The bottom of the sliding seat is provided with a sliding block corresponding to the second guide rail, so that the sliding seat can be smoothly and stably installed on the second guide rail through the sliding block, thereby further improving the stability and precision of the Y-retreating mechanism 202.

[0030] The X-direction driving module 1 mainly comprises two first guide rails 101 arranged in parallel on the support platform 3, which serve as the basic support structure of the module and ensure the linearity and stability of movement. Between the two first guide rails 101, an X-direction driving mechanism 102 is arranged, which is composed of a first transmission rod 1021 and an X-axis motor 1022. One end of the first transmission rod 1021 is connected to the output end of the X-axis motor 1022, and the driving force of the motor is used to realize the rotation of the first transmission rod 1021, which in turn converts the rotary motion into linear motion. The other end is connected to the base 201 of the crimping module 2 through a nut block, realizing the accurate movement of the base 201 in the X-axis direction. The base 201, as a key component of the crimping module 2, has a mounting hole opened on it. This hole not only ensures the stable assembly of the base 201 and the first transmission rod 1021 through the nut block, but also guarantees the structural strength and movement accuracy of the module as a whole. In addition, in order to accommodate the parallel operation of multiple crimping modules in the same plane, a cleverly designed avoiding hole is also opened on the base 201. This design effectively avoids the mutual interference of the first transmission rods 1021 of adjacent crimping modules during movement, thereby ensuring that multiple crimping modules can operate simultaneously, independently and accurately. Furthermore, the bottom of the base 201 is equipped with sliding blocks matching the first guide rails 101, which improve the movement stability and accuracy of the base 201 in the X-axis direction. In this embodiment, both the first transmission rod 1021 and the second transmission rod are designed as a screw rod.

[0031] In this embodiment, two sets of crimping modules are provided, and the X-direction driving modules 1 of the two sets of crimping modules share the same set of first guide rail 101 systems, and the two X-direction driving mechanisms 102 are arranged in parallel between the two first guide rails 101. This design not only optimizes the space layout, but also improves the overall efficiency and flexibility of the equipment. In addition, the bottom of the support platform 3 is also provided with a controller 4, which is a PG signal generator (Pattern Generator, image signal generator). The controller 4 is electrically connected to the pressure head through a wire, and then establishes a complete electrical link with the product to be tested. This link provides the necessary electrical connection basis for the point screen test process immediately after the crimping process is completed. In the point screen test process, the controller 4 uses the image signal generated by the PG signal generator to comprehensively detect the screen of the product to be tested, thereby ensuring the quality and reliability of the product.

[0032] The vehicle-mounted screen FPC crimping device provided by the utility model realizes comprehensive automation, high-precision positioning and efficient operation in the crimping process through the integrated X-direction driving module 1, the multifunctional crimping module 2 and the innovative Y-direction yielding mechanism 202. Among them, the theta correction mechanism 205 is combined with the visual unit 204, which ensures the accurate alignment of the pressure head and the product to be measured, and greatly reduces the crimping defects; the design of the Y-direction yielding mechanism 202 provides an obstacle-free space for the stable placement of the product to be measured, effectively avoiding the sagging or bending problem of the flexible circuit board material; and the accurate control of the Z-direction crimping mechanism 203 further improves the crimping quality. In addition, the device is also compatible with the parallel operation of multiple crimping modules, optimizes the space layout and improves the production efficiency. In particular, the controller 4 and the PG signal generating device equipped on the loading platform 3 provide an electrical connection basis for the point screen testing process after crimping, ensuring the final quality and reliability of the product.

[0033] The utility model also provides a kind of crimping method of vehicle-mounted screen FPC, using the crimping device described above is implemented, specifically including the following steps:

[0034] S1.Preliminary debugging stage, first according to the specific model of product to be measured, system automatically calls the X-direction position parameter matched with it;Then, the X-direction driving module 1 in crimping module is accurately moved according to these parameter instructions, to ensure that the pressure head is positioned to the preset crimping position, to lay a foundation for subsequent operation;

[0035] S2.Product preparation and positioning, this stage starts Y-direction yielding mechanism 202, the mechanism drives the related components installed on it, located above the pressure head, and translates backward as a whole, to make enough operating space above the pressure head;Then, the crimping end of product to be measured is moved to the exact above of pressure head, and is placed stably on the pressure head in the way from top to bottom;After completing product placement, Y-direction yielding mechanism 202 is started again, drives related components to restore to original position, to prepare for crimping operation;

[0036] S3.Crimp operation is executed, in this step, first, visual unit 204 is used to take a photo of product to be measured, to obtain its image information;Then, crimping module adjusts and corrects the position of pressure head in theta direction (i.e. rotation angle) according to these image information, to ensure that the crimping point of product to be measured and the crimping point of pressure head can completely coincide;After correction is completed, Z-direction crimping mechanism 203 drives pressure head to press down slowly under control, to complete the whole crimping operation.

[0037] The FPC crimping method of the vehicle-mounted screen provided by the utility model not only successfully realizes the overall automation, high precision and high efficiency of the crimping operation, but also makes breakthrough progress in significantly improving the crimping success rate. Specifically, the utility model ingeniously sets the Y direction yielding mechanism 202, which can drive all the related functional components above the pressure head to translate backward as a whole in the crimping preparation stage, thereby creating sufficient and barrier-free operation space. This design innovation enables the crimping end of the product under test to be smoothly placed on the pressure head in a more stable and top-down manner. Compared with the traditional method in which the crimping end needs to be positioned on the pressure head by moving to the side, the utility model effectively avoids the drooping or bending phenomenon caused by the inherent softness and variability of the flexible circuit board material, thereby greatly reducing the error and failure rate in the crimping process. Through this series of careful design and optimization, the utility model not only improves the reliability and stability of the crimping operation, but also brings a more efficient and high-quality solution to the manufacturing process of the vehicle-mounted screen FPC.

[0038] In summary, the utility model not only significantly improves the precision and efficiency of the crimping operation of the vehicle-mounted screen FPC, but also provides a powerful guarantee for the quality control of the product.

[0039] It should be noted that for those skilled in the art, without departing from the principles of the utility model, the utility model can be improved and modified in several ways, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A crimping device for a vehicle-mounted screen FPC, characterized by comprising: The crimping module comprises at least one set of pressure heads, and specifically comprises: An X-direction driving module (1) for adjusting the position of the pressure head in the X-direction; A crimping module (2) provided on the X-direction driving module (1), specifically comprising a Y-direction retreat mechanism (202) and a Z-direction crimping mechanism (203) provided on the Y-direction retreat mechanism (202), the driving end of the Z-direction crimping mechanism (203) is provided with a pressing assembly, the Y-direction retreat mechanism (202) is used for moving the Z-direction crimping mechanism (203) above the pressure head backward and restoring to the original position, and the Z-direction crimping mechanism (203) is used for driving the pressing assembly to press downward; The crimping module (2) further comprises a θ-direction correction mechanism (205) and a visual unit (204) provided on the Y-direction retreat mechanism (202), the visual unit (204) is used for photographing and positioning the pressure head and the product to be tested, and the θ-direction correction mechanism (205) is used for adjusting the position of the pressure head in the θ-direction. The crimping module (2) comprises a base (201), the θ-direction correction mechanism (205) is provided on the base (201), and the pressure head is provided at the driving end of the θ-direction driving mechanism; the Y-direction retreat mechanism (202) is installed on the base (201) through a support frame (2011).

2. The apparatus of claim 1, wherein, The Y-direction retreat mechanism (202) comprises a second transmission rod, a sliding seat and a Y-axis motor, one end of the second transmission rod is connected with the output end of the Y-axis motor, and the sliding seat is installed on the second transmission rod and moves on the second transmission rod under the driving of the Y-axis motor.

3. The apparatus of claim 2, wherein, The Z-direction crimping mechanism (203) and the visual unit (204) are installed on the sliding seat, the visual unit (204) comprises a camera (2041) and a light source (2042), and the shooting range of the camera (2041) and the illumination range of the light source (2042) are the crimping position of the pressure head.

4. The apparatus of claim 2, wherein, Two parallel second guide rails are further provided on the support frame (2011), the bottom of the sliding seat is provided with a sliding block corresponding to the second guide rails, and the sliding seat is movably installed on the second guide rails through the sliding block.

5. The apparatus of claim 1, wherein, The θ-direction correction mechanism (205) comprises a hollow rotating platform and a θ-direction motor, the output end of the θ-direction motor is connected with the input end of the hollow rotating platform, and the output end of the hollow rotating platform is connected with the pressure head through a first connecting plate.

6. The apparatus of claim 5, wherein, The θ-direction correction mechanism (205) further comprises a displacement sensing device (2051), specifically comprising an induction block provided on the first connecting plate, and a first sensor and a second sensor provided on the base (201) and corresponding to the induction block, the first sensor corresponds to the initial position of the pressure head, and the first sensor corresponds to the rotation limit position.

7. The apparatus of claim 1, wherein, The X-direction driving module (1) comprises two parallel first guide rails (101), and two parallel X-direction driving mechanisms (102) arranged between the two first guide rails (101); the X-direction driving mechanism (102) comprises a first transmission rod (1021) and an X-axis motor (1022), one end of the first transmission rod (1021) is connected with the output end of the X-axis motor (1022); the base (201) is movably installed on the first transmission rod (1021) through a nut block and moves on the first transmission rod (1021) under the driving of the X-axis motor (1022).

8. The apparatus of claim 7, wherein, The base (201) is provided with a mounting hole and a avoiding hole, the mounting hole is used for mounting the connecting block on the first transmission rod (1021), and the avoiding hole is used for avoiding the first transmission rod (1021) of another set of crimping modules (2); the bottom of the base (201) is provided with a sliding block matched with the first guide rail (101).

9. The apparatus of claim 1, wherein, The controller (4) is arranged below the crimping module and is electrically connected with the pressure head through a wire.

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