A positioning and bending device for connector pins

Abstract

This utility model relates to a positioning and bending device for connector pins, comprising: a positioning part for positioning the connector after the pin is inserted; a bending part for bending the connector pin; and a bending adjustment fixture for adjusting the positioning part to confirm the bending center. This utility model facilitates the determination of the bending center position and provides support for the pin by conforming the shape of the front end of the bending cover plate, improving the consistency and stability of product bending, thereby ensuring the accuracy of the product pins and product quality.

Description

Technical Field

[0001] This utility model relates to a connector assembly device, and more particularly to a positioning and bending device for connector pins, belonging to the field of electronic component assembly technology. Background Technology

[0002] Most existing connector pin bending processes use cylinders to provide bending and positioning power, and most existing bending equipment does not determine the bending center for bending, resulting in the following drawbacks: When using a cylinder to apply rotational force for bending, it is necessary to use a limit screw to position each bend. This cannot meet the needs of various products with different angles, and the force provided by the cylinder is not stable, making it difficult to guarantee product stability. Bending without determining the bending center cannot guarantee product consistency and affects product quality. Utility Model Content

[0003] This invention aims to solve the aforementioned problems and provide a positioning and bending device for connector pins. This device uses a motor as the rotational power source and integrates the product and rear positioning into a single design. It allows for vertical and horizontal adjustment, solving the problem of centering during bending and thus improving the assembly accuracy and quality of the connector.

[0004] To solve the above problems, the technical solution adopted by this utility model is as follows: A positioning and bending device for connector pins, used to position and bend connector pins after insertion, characterized in that it includes: The positioning part is used to position the connector after the insertion pin. It includes an adjustable positioning fixing block and a rear positioning plate fixing block, and a rear positioning plate fixed on the rear positioning plate fixing block. A bending positioning rod driven by a cam mechanism is slidably adapted above the rear positioning plate. A bending cover plate is provided at the front end of the bending positioning rod. The front end of the bending cover plate is designed with a corresponding contour structure according to the bending radius of the pin. The bending section, used to bend the pins of the connector, includes a bending body that is rotatably mounted and driven and controlled by a motor, and a bending mechanism disposed on the bending body; the bending mechanism includes a bending plate that is mounted on a slide and driven and controlled by a bending positioning cylinder, and a limiting screw and a limiting block that are mounted on the front end of the bottom of the slide to limit the movement stroke of the bending plate. A bending adjustment fixture is used to adjust the positioning part to confirm the bending center. It includes a fixture body with a bottom clamp and two arc heads on the top. The two arc heads are used to fit the inner arc surface of the bending body, and the bottom clamp is used to fit the contour structure at the front end of the bending cover plate. Furthermore, it also includes a conveyor section configured as a track, which is laid along the axial direction of the bending body of the bending section to provide a connector after the pin is inserted.

[0005] Furthermore, the positioning fixing block is installed on the base plate through the waist hole and keyway to realize the front and back adjustment of the positioning part; the rear positioning plate fixing block is installed on one side of the positioning fixing block through the elongated hole to realize the up and down adjustment of the positioning part.

[0006] Furthermore, the cam mechanism includes a rear positioning cylinder, a linear push rod, and a roller follower. The rear positioning cylinder outputs upwards to connect with the linear push rod. The upper sliding end of the linear push rod contacts and adapts to the roller follower through a cam curve set on one side. The roller follower is mounted on a follower mounting block, and the follower mounting block is fixedly connected to the rear end of the bent positioning rod, and together they are slidably mounted in a preset groove above the rear positioning plate. The cam mechanism also includes a tension spring that provides a reset function for the follower mounting block.

[0007] Furthermore, the upper part of the bending cover plate has a square groove for accommodating the elastic pressing component; the elastic pressing component includes a pressing baffle with a slot on one side, a pressing block that slides up and down and is adapted to the slot of the pressing baffle, and a spring pressing plate located above the pressing baffle. A compression spring is provided between the spring pressing plate and the pressing block. The pressing baffle is fixed to the bending positioning rod by bolts, and the spring pressing plate is fixed to the pressing baffle by bolts. The pressing block has a slot that is adapted to the slot of the pressing baffle, and the slot has a predetermined height.

[0008] Furthermore, the front end of the bent cover plate has a contoured chamfer.

[0009] Furthermore, the slide is fixed to one end face of the bending body with a groove, the bending positioning cylinder is fixed to one side of the slide by a cylinder fixing plate, a groove is provided above the slide and a slider controlled by the output of the bending positioning cylinder is installed in the groove, the end of the slider is connected to the bending plate, and a pin groove adapted to the connector pin is opened above the bending plate.

[0010] Furthermore, the limiting block is installed at the bottom front end of the slide table, and the limiting screw is installed at the front end of the slider.

[0011] This utility model discloses a positioning and bending device for connector pins. It changes the traditional fixed positioning method to adjustable positioning, which makes it easier to determine the bending center position. The device also provides support for the pin by conforming the front end of the bending cover plate, thereby improving the consistency and stability of the product bending and ensuring the accuracy of the product pins and the product quality. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the positioning and bending equipment structure in Example 1; Figure 2 This is a schematic diagram of the positioning part structure; Figure 3This is a schematic diagram of the bending section structure; Figure 4 This is a schematic diagram of the bending mechanism; Figure 5 This is a schematic diagram showing the positional status of the bending body, positioning part, and bending mechanism. Figure 6 This is a schematic diagram of the main bending structure; Figure 7 This is a schematic diagram of the elastic pressure assembly structure; Figure 8 This is a schematic diagram of the bending mechanism at the first angle. Figure 9 This is a schematic diagram of the second angle structure of the bending mechanism; Figure 10 This is a schematic diagram of the bending adjustment fixture structure; Figure 11 This is a schematic diagram of the connector before and after bending. Detailed Implementation

[0013] The present invention will now be described in detail with reference to the accompanying drawings.

[0014] Example 1 A positioning and bending device for connector pins, such as Figure 1 As shown, it includes a positioning part 1 for positioning the connector after the pin is inserted, a bending part 2 for bending the connector pin, a conveying part 3 for conveying the connector into the mechanism and conveying the product after bending, and a bending adjustment fixture 4 for adjusting the positioning part 1 to confirm the bending center.

[0015] The positioning part 1 is installed on one side of the conveying part, such as Figure 2As shown, its structure includes a positioning fixing block 1a, a rear positioning plate fixing block 1b, a cylinder positioning plate 1c, a rear positioning cylinder 11, a linear push rod 12, a roller follower 13, a bending positioning rod 14, a rear positioning plate 15, a bending cover plate 16, and an elastic pressing assembly 17. The positioning fixing block 1a is mounted on the equipment base plate via a waist hole and a keyway, allowing the positioning part 1 to be adjusted forward and backward on the base plate. The rear positioning plate fixing block 1b is mounted on one side of the positioning fixing block 1a via a long hole, allowing the positioning part 1 to be adjusted vertically. The rear positioning plate 15 and the cylinder positioning plate 1c are respectively fixed to the upper and lower ends of the rear positioning plate fixing block 1b. A guide block 1d and a guide cover plate 1e, which provide positioning guidance for the linear push rod 12, are installed on the other side of the rear positioning plate fixing block 1b. A proximity sensor is installed on one side of the guide cover plate 1e. The rear positioning cylinder 11 is installed below the cylinder positioning plate 1c and outputs a connecting linear push rod 12 upwards. The linear push rod 12 is slidably installed in the longitudinal channel constructed by the guide block 1d and the guide cover plate 1e. The upper end of the linear push rod 12 contacts and adapts to the roller follower 13 installed on the follower mounting block 18 through a cam curve set on one side. The follower mounting block 18 is fixedly connected to the rear end of the bending positioning rod 14 and is slidably installed together in a preset slide groove above the rear positioning plate 15. The front end of the bending positioning rod 14 is provided with a plug-in positioning structure for engaging with one side of the connector housing. A tension spring 19 is connected between the top of the guide cover plate 1e and the follower mounting block 18. A bending cover plate 16 is installed at the front end of the rear positioning plate 15. The front end of the bending cover plate 16 is designed with a corresponding contoured chamfer 16a according to the needle bending radius. A square groove for accommodating the elastic pressure assembly 17 is opened on the upper part of the bending cover plate 16. The elastic pressure assembly 17 is as follows: Figure 7 As shown, the connector includes a pressure baffle 171 with a slot on one side, a pressure block 172 that slides vertically within the slot of the pressure baffle 171, and a spring pressure plate 173 located above the pressure baffle 171. A compression spring 174 is provided between the spring pressure plate 173 and the pressure block 172. The pressure baffle 171 is fixed to the bending positioning rod 14 by bolts, and the spring pressure plate 173 is fixed to the pressure baffle 171 by bolts. The pressure block 172 has a slot that matches the slot of the pressure baffle 171, and the slot has a predetermined height. Through the sliding relationship between the two, the pressure block 172 can slide vertically along the pressure baffle 171, and at the same time, with the action of the compression spring 174, the pressure block 172 can elastically press down and position itself on the connector housing.

[0016] The bending part 2 is installed on the other side of the conveying part 3 and is adapted to the positioning part 1, such as... Figure 3As shown, its structure includes a rotatably mounted bending body 21, a stepper motor 22 that provides rotational torque to the bending body 21, and a bending mechanism 23 for performing bending actions.

[0017] The bending body 21 adopts a horizontal cylindrical structure, such as Figure 6 As shown, its central through hole provides a through channel for the conveying section 3, and the edges on both sides of its cylinder are respectively mounted on two vertical plates of the equipment by bearings. The bending body 21 has a groove that runs radially downward along the top of the cylinder.

[0018] The stepper motor 22 provides bending rotational force to the bending body 21 via belt drive; The bending mechanism 23 is as follows Figure 8-9 As shown, it includes a bending positioning cylinder 231, a cylinder positioning plate 232, a slide table 233, a bending plate 234, a limiting block 235, and a limiting screw 236; the slide table 233 is fixed to one end face of the bending body 21 with a groove, and the bending positioning cylinder 231 is fixed to one side of the slide table 233 by the cylinder fixing plate 232; a groove is provided above the slide table 233 and a slider 237 controlled by the output of the bending positioning cylinder 231 is installed in the groove, and the end of the slider 237... The connecting bending plate 234 has a pin groove on its upper part that matches the connector pin. The bottom front end of the slide table 231 is fixedly installed with a limit block 234. The front end of the slider 237 is installed with a length adjustable limit screw 236 connected by a thread. The limit screw 236 and the limit block 234 work together to limit the movement stroke of the bending plate 234 by adjusting the length of the limit screw 234, thereby adapting to the bending requirements of connector pins of different lengths.

[0019] The bending adjustment fixture 4 is used to find the bending center of the needle to determine the position of the positioning part 1, such as Figure 10 As shown, its structure includes a fixture body 41, symmetrically arranged arc heads 42 on both sides above the fixture body 41, and a clamping platform 43 disposed below the fixture body 41. The arc radius of the arc head 42 is the same as the radius of the bending body 21. The clamping platform 43 is used to fit into the contour chamfer 16a at the front end of the bending cover plate 16. When using the bending adjustment fixture 4, the fixture body 41 is first placed inside the bending body 21, so that the arc heads 42 on both sides above it fit against the inner surface of the bending body 21. At this time, the position of the contour chamfer 16a at the front end of the bending cover plate 16 can be determined by the position of the inner chamfer of the clamping platform 43 below the fixture body 41. The position of the positioning part 1 is thus determined and adjusted, thereby ensuring the consistency and stability of the bending center and product quality.

[0020] The operation process of the positioning and bending device for connector pins in this embodiment is as follows: 1. Place the bending adjustment fixture 4 on top of the bending body 21, so that the two arc heads 42 on the top of the fixture are close to the concave arc surfaces on both sides of the top of the bending body 21. At this time, the position of the chamfer inside the clamping table 43 below the fixture can be used as a reference to determine the bending center. Adjust the position of the positioning part 1 based on this, so that the chamfer 16a of the bending cover plate 16 of the positioning part 1 is close to this bending center.

[0021] 2. Adjust the limit screw 236 to a suitable distance according to the length of the connector pin to ensure that the bending plate 234 obtains a suitable movement stroke.

[0022] 3. When the conveying unit 3 delivers the connector after the pin insertion to the end of the rear positioning plate 15 of the positioning unit 1, the pressure block 172 of the elastic pressure assembly 17 presses and positions the connector.

[0023] 4. The rear positioning cylinder 11 drives the linear push rod 12 to rise upwards, and pushes the roller follower 13 forward through the cam curve on one side to push the bending positioning rod 14 to slide forward along the upper part of the rear positioning plate 15 until the insertion positioning structure at the front end of the bending positioning rod 14 contacts one side of the connector, thus completing the positioning of one side of the connector.

[0024] 5. The bending positioning cylinder 231 of the bending mechanism 23 drives the bending plate 234 to move below the bending cover plate 16, and causes the pins below the bending cover plate 16 to be inserted into the pin grooves on the upper surface of the bending plate 234.

[0025] 6. The stepper motor 22 drives the bending body 21 to rotate through the belt drive mechanism, which in turn drives the bending mechanism 23 on the bending body 21 to rotate by a predetermined angle, and finally completes the bending of the connector pin through the bending plate 234.

[0026] This embodiment of a positioning and bending device for connector pins changes the traditional fixed positioning method to adjustable positioning, which makes it easier to determine the bending center position. The device also provides support for the pin by conforming the front end of the bending cover plate, thereby improving the consistency and stability of product bending and ensuring the accuracy of the product pins and the product quality.

[0027] This utility model is not limited to the embodiments discussed above. The above description of specific embodiments is intended to describe and illustrate the technical solutions involved in this utility model. Obvious variations, substitutions, or combinations based on the teachings of this utility model should also be considered to fall within the protection scope of this utility model. The above specific embodiments are used to disclose the best implementation method of this utility model, so that those skilled in the art can apply various embodiments and alternative methods of this utility model to achieve the purpose of this utility model.

Claims

1. A positioning and bending device for connector pins, used to position and bend connector pins after insertion, characterized in that, include: The positioning part is used to position the connector after the insertion pin. It includes an adjustable positioning fixing block and a rear positioning plate fixing block, and a rear positioning plate fixed on the rear positioning plate fixing block. A bending positioning rod driven by a cam mechanism is slidably adapted above the rear positioning plate. A bending cover plate is provided at the front end of the bending positioning rod. The front end of the bending cover plate is designed with a corresponding contour structure according to the bending radius of the pin. The bending section, used to bend the pins of the connector, includes a bending body that is rotatably mounted and driven and controlled by a motor, and a bending mechanism disposed on the bending body; the bending mechanism includes a bending plate that is mounted on a slide and driven and controlled by a bending positioning cylinder, and a limiting screw and a limiting block that are mounted on the front end of the bottom of the slide to limit the movement stroke of the bending plate. A bending adjustment fixture is used to adjust the positioning part to confirm the bending center. It includes a fixture body with a bottom clamp and two arc heads on the top. The two arc heads are used to fit the inner arc surface of the bending body, and the bottom clamp is used to fit the contour structure at the front end of the bending cover plate.

2. The positioning and bending device for connector pins as described in claim 1, characterized in that, It also includes a conveyor section configured as a track, which is laid along the axial direction of the bending body of the bending section to provide a connector after the pin is inserted.

3. The positioning and bending device for connector pins as described in claim 2, characterized in that, The positioning and fixing block is installed on the base plate through the waist hole and keyway to realize the front and back adjustment of the positioning part; the rear positioning plate fixing block is installed on one side of the positioning and fixing block through the elongated hole to realize the up and down adjustment of the positioning part.

4. The positioning and bending device for connector pins as described in claim 3, characterized in that, The cam mechanism includes a rear positioning cylinder, a linear push rod, and a roller follower. The rear positioning cylinder outputs upwards and connects to the linear push rod. The upper sliding end of the linear push rod contacts and adapts to the roller follower through a cam curve set on one side. The roller follower is mounted on a follower mounting block, and the follower mounting block is fixedly connected to the rear end of the bent positioning rod, and together they are slidably mounted in a preset groove above the rear positioning plate. The cam mechanism also includes a tension spring that provides a reset function for the follower mounting block.

5. A positioning and bending device for connector pins as described in claim 4, characterized in that, The upper part of the bending cover plate has a square groove for accommodating the elastic pressing component; the elastic pressing component includes a pressing baffle with a slot on one side, a pressing block that slides up and down and is adapted to the slot of the pressing baffle, and a spring pressing plate located above the pressing baffle. A compression spring is provided between the spring pressing plate and the pressing block. The pressing baffle is fixed to the bending positioning rod by bolts, and the spring pressing plate is fixed to the pressing baffle by bolts. The pressing block has a slot that is adapted to the slot of the pressing baffle, and the slot has a predetermined height.

6. The positioning and bending device for connector pins as described in claim 5, characterized in that, The front end of the bent cover plate has a contoured chamfer.

7. A positioning and bending device for connector pins as described in claim 6, characterized in that, The slide is fixed to one end face of the bending body with a groove. The bending positioning cylinder is fixed to one side of the slide by a cylinder fixing plate. A groove is provided above the slide and a slider controlled by the output of the bending positioning cylinder is installed in the groove. The end of the slider is connected to the bending plate. A pin groove adapted to the connector pin is opened above the bending plate.

8. The positioning and bending device for connector pins as described in claim 7, characterized in that, The limiting block is installed at the bottom front end of the slide table, and the limiting screw is installed at the front end of the slider.

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