An automatic crimping press head structure

Abstract

The utility model discloses an automatic crimping pressure head structure, its characterized in that, the pressure head structure includes pressure head fixed plate and sets up the needle template on pressure head fixed plate, and the circuit board is fixed between pressure head fixed plate and needle template, be provided with the float board with needle template swing joint on needle template, be provided with the connector profiling slot on the float board, be provided with the cooperation groove on needle template, the connector profiling slot inserts cooperation groove, and the connector inserts connector profiling slot and realizes the compression of connector in float board.

Description

Technical Field

[0001] This utility model relates to the field of integrated manufacturing process of display panels such as large-size LCD panels, and is also applicable to all similar automatic crimping applications of connectors, specifically in the field of integrated testing technology for large-size LCD display panels. Background Technology

[0002] In the LCD panel testing industry, most products require illumination before testing. A common method is automatic crimping to establish an electrical connection between the product and the light source. However, the success rate fluctuates depending on the accuracy of connector feature capture, which is affected by factors such as the resolution of the light source camera and the clarity of the connector features. As customers demand greater stability in automatic crimping success rates, current structures cannot meet their requirements. Existing crimping structures rely on a camera above the crimp head to capture and calculate connector features, with position correction along the θ-axis. The crimp head then descends to the crimping position, resulting in significant success rate fluctuations. Current technology has the following drawbacks.

[0003] Insufficient camera capture accuracy: Existing crimping systems rely on a camera above the crimp head to capture connector features, but this has significant limitations in practical applications. Camera resolution directly affects feature recognition accuracy; when the connector feature size is smaller than the physical size represented by a single camera pixel (e.g., 0.01mm / pixel), it can lead to positioning errors. Furthermore, there is a conflict between camera field of view and resolution: a large field of view reduces the accuracy per pixel, while a small field of view may fail to fully capture connector features.

[0004] Dynamic compensation delay exists; the θ-axis position correction involves a mechanical response delay, with a lag of approximately 50-100ms between the camera detecting the deviation and the pressure head actually completing the compensation. For high-speed crimping systems (e.g., more than 60 times per minute), this delay can lead to a systematic deviation between the actual crimping position and the calculated position.

[0005] Insufficient clarity of connector features and poor quality of connector surface plating (such as gold or silver plating) can affect feature reflectivity. Inferior plating may lead to blurred features or uneven reflectivity. The reflectivity of the connector surface can cause fluctuations in image contrast, which in turn affects the stability of the feature extraction algorithm.

[0006] Therefore, it is necessary to develop a structure that can improve the success rate and stability of automatic crimping, reduce the deviation of the crimping position caused by the automatic positioning deviation during detection, and improve the accuracy of automatic crimping. Utility Model Content

[0007] This invention provides an automatic crimping head structure that uses the mechanical limiting of the connector's shape to solve the crimping position deviation caused by movement error, thereby improving the success rate and stability of insertion.

[0008] One technical solution adopted by this utility model is: An automatic crimping head structure, characterized in that the crimping head structure includes a crimping head fixing plate and a needle template disposed on the crimping head fixing plate, and the circuit board is fixed between the crimping head fixing plate and the needle template; The needle template is provided with a floating plate that is movably connected to the needle template. The floating plate is provided with a connector contour groove, and the pin template is provided with a mating groove. The connector contour groove is embedded in the mating groove, and the connector is embedded in the connector contour groove to achieve the pressing of the connector on the floating plate.

[0009] A first pin fixing seat is provided on the outside of the mating groove, and a first pin for connecting the circuit board is fixed on the first pin fixing seat. A second pin fixing seat is provided on the side wall of the connector, and a second pin is provided on the second pin fixing seat. The connector is pressed into the connector groove of the floating plate, and the second pin contacts the first pin.

[0010] The circuit board has a plurality of contacts arranged at equal intervals, and each contact is connected to the first pin.

[0011] Both the first pin holder and the second pin holder are elongated pin holders.

[0012] The first pin holder is provided with a plurality of circular holes, and a plurality of the first pins are engaged in the plurality of circular holes; The second pin is L-shaped.

[0013] The connector contour groove has an opening on one side, and the two sides of the connector contour groove opening are engaged with the first pin fixing seat, with the opening avoiding the first pin on the first pin fixing seat. The second pin contacts the first pin through the opening.

[0014] The needle template is provided with a spring placement groove, the spring body is placed in the spring placement groove, and the floating plate is pressed onto the spring body; The floating plate has guide posts embedded at its four corners, and one end of each guide post is fixed to the needle template.

[0015] The needle template is provided with a floating plate placement position, and the floating plate placement position has a rectangular recessed platform that faces downwards.

[0016] The shape of the connector contour groove is the same as the shape of the connector except for the second pin fixing part.

[0017] The circuit board is an FPC board or a PCB board, and the end of the FPC board or the PCB board away from the pressure head structure is connected to external components.

[0018] This invention has the following advantages over existing technologies: 1. The automatic crimping head structure of this invention features a floating plate with a connector contour groove, and a needle template with a corresponding mating groove for the connector contour groove. This enables the connector to be pressed against the floating plate, and the floating plate against the needle template. The shape characteristics of the connector contour groove are used for mechanical positioning and correction of the crimping position, improving the success rate of crimping. 2. The floating plate and the needle template are connected by a spring, providing cushioning for the floating plate. When the floating plate is not pressed down, the needle pins of the needle template are below the opening of the floating plate, which better protects the needle pins. During the crimping process, the connector needle pins slowly contact the needle template, further improving the protection of the needle pins on the needle template, reducing physical wear of the needle pins, and increasing the service life of the crimping head structure. Attached Figure Description

[0019] 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.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0021] Figure 2 This is a schematic diagram of the needle template of the device of this utility model.

[0022] Reference numerals: 1-Fixing plate, 2-Circuit board, 3-Pin template, 301-Spring body, 302-Spring placement slot, 303-Guide post, 304-Floating plate placement position, 4-Floating plate, 5-Connector contouring slot, 6-Mating slot, 601-First pin fixing seat, 602-First pin, 7-Connector, 701-Second pin fixing seat, 702-Second pin. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Examples of these preferred embodiments are illustrated in the drawings. The embodiments of this utility model shown in and described with reference to the drawings are merely exemplary, and this utility model is not limited to these embodiments.

[0024] It should also be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and / or processing steps closely related to the solution according to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0025] Furthermore, in the description of this utility model, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] Example 1 This embodiment provides an automatic crimping head structure, which includes a crimping head fixing plate 1 and a needle template 3 disposed on the crimping head fixing plate 1. A circuit board 2 is fixed between the crimping head fixing plate 1 and the needle template 3. A floating plate 4 is provided on the needle template 3 and is movably connected to it. A connector contouring groove 5 is provided on the floating plate 4, and a mating groove 6 is provided on the needle template 3. The connector contouring groove 5 is embedded in the mating groove 6, and the connector 7 is embedded in the connector contouring groove 5 to achieve the crimping of the connector 7 on the floating plate 4. This utility model ensures accurate positioning during crimping by setting a contouring positioning structure in the automatic crimping head, thereby enhancing the success rate of crimping and improving the efficiency of testing. At the same time, when the connector 7 is crimped onto the floating plate 4, since the floating plate 4 is movably connected to the needle template 3, the pins of the connector 7 slowly contact the needle template during the crimping process, which can improve the protection of the pins on the needle template 3, reduce the physical wear of the pins, and improve the service life of the crimping head structure.

[0027] The following text combines Figure 1 as well as Figure 2 The detailed explanation of the scheme in this embodiment is as follows: This embodiment provides an automatic crimping head structure, including a crimping head fixing plate 1 and a needle template 3 disposed on the crimping head fixing plate 1. A circuit board 2 is disposed between the crimping head fixing plate 1 and the needle template 3. The circuit board 2 is an FPC board or a PCB board. External components are connected to one end of the circuit board 2 away from the crimping head structure. The circuit board 2 is connected to a connector 7 at the position of the crimping head fixing plate 1, and the other end is connected to the target component. A first pin 602 is provided on the needle template 3, and a plurality of contacts are equidistantly arranged on the circuit board 2. Each contact is connected to the first pin 602, realizing the electrical connection between the needle template 3 and the circuit board 2.

[0028] The needle template 3 is also provided with a floating plate placement position, which is a rectangular recessed platform that opens downwards. The floating plate 4 is placed on the floating plate placement position, and the floating plate 4 is movably connected to the needle template 3. Specifically, the needle template 3 is provided with a spring placement groove 302, and the spring body 301 is placed in the spring placement groove 302. The floating plate 4 is pressed onto the spring body 301. Four guide posts 303 are fixedly provided on the needle template 3. The four corners of the floating plate 4 pass through the guide posts 303. The floating plate 4 slides up and down along the guide posts 303 and automatically rebounds under the action of the spring body 301 to complete the movable connection between the floating plate 4 and the needle template 3.

[0029] To facilitate the movement of the floating plate 4, a connector contour groove 5 is provided on the floating plate 4, and the pin template 3 is provided with a corresponding mating groove 6 that cooperates with the connector contour groove 5. The mating groove 6 is as follows: Figure 2 As shown, when the floating plate 4 is fixed on the needle template 3, the connector contour groove 5 is inserted into the mating groove 6, and there is no interference with the needle template 3 when the floating plate 4 floats up and down.

[0030] like Figure 1 As shown, the side wall of connector 7 is provided with a second pin retainer 701. The second pin retainer 701 is elongated and has an L-shaped second pin 702 on it; as shown... Figure 2 As shown, a first pin fixing seat 601 is provided on the outer side of the mating groove 6 of the pin template 3. A first pin 602 for connecting the circuit board 2 is fixed on the first pin fixing seat 601. A plurality of round holes are provided on the first pin fixing seat 601. The plurality of first pins 602 on the first pin fixing seat 601 are engaged in the plurality of round holes to fix the first pins 602. The electrical connection of the connector can be completed when the first pin 602 contacts the second pin 702.

[0031] To facilitate the fixation of the connector body, the shape of the connector contour groove 5 on the floating plate 4 is set to be similar to the shape of the connector 7 except for the second pin fixing seat 701. Therefore, the connector 7 can be smoothly engaged on the floating plate 4, using the shape for mechanical limiting, thereby improving the success rate and efficiency of crimping.

[0032] To facilitate electrical connection of connector 7, an opening is provided on one side of connector contour groove 5. The two sides of the opening of connector contour groove 5 are engaged with the first pin fixing seat 601, and the opening of connector contour groove 5 avoids the first pin 602 on the first pin fixing seat 601. During pressing, the second pin 702 on connector 7 can contact the first pin 602 through the opening on floating plate 4, reducing structural interference between floating plate 4 and connector 7.

[0033] In this embodiment, when the connector 7 is crimped and fixed onto the floating plate 4, the connector 7 is embedded in the connector contour groove 5 of the floating plate 4. When the floating plate 4 is pressed down, the spring between the floating plate 4 and the pin template 3 can provide cushioning for the floating plate 4. Therefore, the connector 7 is slowly pressed down until the second pin 702 on the connector contacts the first pin 602 on the pin template 3. When the second pin 702 contacts the first pin 602, the floating plate 4 contacts the pin template 3. Therefore, the contact between the second pin 702 and the first pin 602 is limited, and the first pin 602 and the second pin 702 will not be damaged due to excessive compression. Moreover, because the floating plate 4 descends slowly, the first pin 602 and the second pin 702 slowly contact each other, so excessive wear of the pins will not occur.

[0034] Meanwhile, when the floating plate 4 is not pressed down, the first pin 602 is below the opening of the floating plate, and the floating plate 4 can provide protection for the first pin 602. The device of this utility model can better protect the pin.

[0035] The automatic crimping head structure of this utility model can also achieve automatic crimping through an external crimping mechanism. With the matching of the connector contour groove 5 and the outer shape of the connector body, it provides a limit for crimping, ensuring that the crimping process is accurate and controllable, reducing the probability of rework, and improving crimping efficiency.

[0036] The above provides a detailed description of the automatic crimping head structure provided by this utility model. Specific examples have been used to illustrate the structure and working principle of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the scope of protection of the claims of this utility model.

Claims

1. An automatic crimping head structure, characterized in that, The pressure head structure includes a pressure head fixing plate (1) and a needle template (3) disposed on the pressure head fixing plate (1), and a circuit board (2) is fixed between the pressure head fixing plate (1) and the needle template (3); The needle template (3) is provided with a floating plate (4) that is movably connected to the needle template (3); The floating plate (4) is provided with a connector contour groove (5), and the pin template (3) is provided with a mating groove (6). The connector contour groove (5) is embedded in the mating groove (6), and the connector (7) is embedded in the connector contour groove (5) to achieve the pressing of the connector (7) on the floating plate (4).

2. The automatic crimping head structure according to claim 1, characterized in that, A first pin fixing seat (601) is provided on the outside of the mating groove (6), and a first pin (602) connecting the circuit board (2) is fixed on the first pin fixing seat (601). A second pin fixing seat (701) is provided on the side wall of the connector (7), and a second pin (702) is provided on the second pin fixing seat (701). The connector (7) is pressed into the connector contour groove (5) of the floating plate (4), and the second pin (702) contacts the first pin (602).

3. The automatic crimping head structure according to claim 2, characterized in that, The circuit board (2) has a plurality of contacts arranged at equal intervals, and each of the contacts is connected to the first pin (602).

4. The automatic crimping head structure according to claim 2, characterized in that, Both the first pin holder (601) and the second pin holder (701) are elongated pin holders.

5. The automatic crimping head structure according to claim 4, characterized in that, The first pin holder (601) is provided with a plurality of round holes, and a plurality of the first pins (602) are engaged in the plurality of round holes; The second pin (702) is L-shaped.

6. The automatic crimping head structure according to claim 2, characterized in that, The connector contour groove (5) has an opening on one side, and the two sides of the opening of the connector contour groove (5) are engaged on the first pin fixing seat (601), and the opening avoids the first pin (602) on the first pin fixing seat (601). The second pin (702) contacts the first pin (602) through the opening.

7. The automatic crimping head structure according to claim 1, characterized in that, The needle template (3) is provided with a spring placement groove (302), the spring body (301) is placed in the spring placement groove (302), and the floating plate (4) is pressed onto the spring body (301); The floating plate (4) has guide posts (303) embedded at its four corners, and one end of the guide post (303) is fixed to the needle template (3).

8. The automatic crimping head structure according to claim 1, characterized in that, The needle template (3) is provided with a floating plate placement position, which is a rectangular recessed platform that is opened downwards.

9. The automatic crimping head structure according to claim 2, characterized in that, The shape of the connector contour groove (5) is the same as that of the connector except for the second pin holder (701).

10. The automatic crimping head structure according to claim 1, characterized in that, The circuit board (2) is an FPC board or a PCB board, and the end of the FPC board or the PCB board away from the pressure head structure is connected to external components.

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