A high-density pin socket connector for a PCB general testing machine and its manufacturing process

Abstract

The present invention relates to a needle base connector, specifically to a high-density needle base connector for a PCB general testing machine and its manufacturing process. The connector includes: an insert component and an overall encapsulation component; the insert encapsulates the circular terminal group; among them, the A circular terminal group and the B circular terminal group are arranged side by side in an alternating manner; the bending directions of the upper bending and the lower bending are opposite. The bending directions of the upper bends of the A circular terminal group and the B circular terminal group are opposite, the bending directions of the lower bends of the A circular terminal group and the B circular terminal group are opposite, and the terminal tails of the A insert component and the B insert component are stacked in a uniformly concave-convex and alternating manner, showing a complementary and meshing state. The beneficial effects are: high overall dimensional accuracy, high form and position accuracy, high position accuracy, meeting the requirements of stability and durability, and being able to reduce costs.

Description

Technical Field

[0001] The present invention relates to the field of needle base connectors, and particularly to a needle base connector for a PCB general test machine bed that can be mass-produced, has a large contact area, high precision, strong stability, and strong durability, and its manufacturing process. Background Art

[0002] The current needle base connector stacks multiple single pieces one by one, and then uses a stainless steel strip with positioning holes to press on both ends of the device to position and fix the multiple single pieces together. Due to size limitations, the strength of the stainless steel strip part itself is insufficient and it is prone to deformation, resulting in positional tolerance of the needle head of the needle base connector and cumulative assembly tolerance after assembly, and precise positioning cannot be performed. The currently used needle base connector cannot meet the requirements for precise positioning, stability, and durability. Summary of the Invention

[0003] To solve the above technical problems, the present invention provides a needle base connector for a PCB general test machine bed that can be mass-produced, has a large contact area, high precision, strong stability, and durability, and its manufacturing process.

[0004] The technical solution provided by the present invention is: a high-density needle base connector for a PCB general test machine and its manufacturing process, and the connector includes: an insert component and an overall encapsulation component;

[0005] The insert component includes an insert and a round terminal group; the insert encapsulates the round terminal group;

[0006] The round terminal group contains no less than 2 round terminals;

[0007] The round terminal includes a terminal head, a terminal middle part, and a terminal tail;

[0008] The middle between the terminal head and the terminal tail is the terminal middle part;

[0009] One end of the terminal head is stamped into a cylinder;

[0010] There is an upper bend between the terminal head and the terminal middle part;

[0011] There is a lower bend between the terminal tail and the terminal middle part;

[0012] The insert is an upper encapsulation and a middle encapsulation;

[0013] The upper encapsulation encapsulates the cylinder of the terminal head;

[0014] The middle encapsulation encapsulates the terminal middle part;

[0015] The insert components are connected in parallel to form an insert component row;

[0016] The overall encapsulation member performs overall encapsulation on the insert component row.

[0017] Further optimization: The round terminal group includes an A round terminal group and a B round terminal group; the A round terminal group and the B round terminal group are staggered and arranged side by side.

[0018] Further optimization: The bending directions of the upper bending and the lower bending are opposite.

[0019] Further optimization: The bending directions of the upper bending of the A round terminal group and the B round terminal group are opposite, and the bending directions of the lower bending of the A round terminal group and the B round terminal group are opposite, so as to expand the distance between the round terminals while the terminal heads of the A round terminal group and the B round terminal group are on the same straight line and the terminal tails are on the same straight line.

[0020] Further optimization: The top of the terminal head is exposed above the upper encapsulation; the terminal tail is exposed on one side of the middle encapsulation.

[0021] Further optimization: An overall encapsulation groove is provided between the upper encapsulation and the middle encapsulation, and three side encapsulation grooves with different lengths are provided on the other side of the middle encapsulation; the overall encapsulation performs overall encapsulation on the overall encapsulation groove and the side encapsulation grooves.

[0022] Further optimization: The insert component includes an A insert component and a B insert component; the terminal tails of the A insert component and the B insert component are evenly stacked in a concave-convex and staggered manner, showing a complementary and meshing state.

[0023] Further optimization: The A insert component and the B insert component are stacked in a staggered and side-by-side manner.

[0024] Further optimization: The cylinder of the terminal head is stamped along the central axis. First, it is stamped into a V-shaped cross-section, then into a U-shaped cross-section, and finally into a circular shape, so as to increase the contact area at the top of the terminal.

[0025] Further optimization: This process includes the following steps:

[0026] First, roll the round terminal head; first cut the round terminal from the copper sheet; then stamp it along the central axis, first into a V-shaped cross-section, then into a U-shaped cross-section, and finally into a circular shape.

[0027] Second, bend the round terminal group. Bend it in two groups. The bending directions of the upper bending and the lower bending of the terminals in the same group are opposite; the bending directions of different groups are opposite; the two groups are staggered and arranged side by side; thereby expanding the distance between the round terminals.

[0028] Third, perform insertion. Stagger the arrangement distance of the round terminal group and perform insertion to form an A insert component and a B insert component.

[0029] Fourth, stagger and stack the A insert component and the B insert component; the terminal tails of the A insert component and the B insert component are evenly stacked with alternating concave and convex shapes, presenting a complementary and meshing state;

[0030] Fifth, perform overall positioning on the stacked insert components; position them with a positioning fixture, which can achieve sufficient strength and precision, and the dimensional accuracy can reach ±0.005 mm;

[0031] Sixth, perform overall sealing on the side sealing glue groove and the overall sealing glue groove.

[0032] After adopting the above technical solutions, the beneficial effects of the present invention are:

[0033] Compared with the disclosed technical solutions, the innovation points of the pin socket connector and its manufacturing process of the present invention are as follows: 1. After the single pieces are stacked, they are positioned in a high-precision positioning fixture, eliminating the positional tolerance during the stacking process and the cumulative tolerance between the pieces. Therefore, the overall dimensional accuracy and geometric tolerance of the pin socket connector are high. 2. After the single pieces are stacked, each needle head is repositioned by a high-precision positioning hole, ensuring the position accuracy of the needle head. 3. The overall sealing process of the present invention can make the pin socket connector not a loose structure but an integral whole, meeting the requirements of stability and durability. 4. The overall sealing process of the present invention eliminates the positioning parts on the pin socket connector and the process of assembling the positioning parts, which can reduce costs. Description of the Drawings

[0034] Figure 1 It is a diagram of the A insert component;

[0035] Figure 2 It is a diagram of the B insert component;

[0036] Figure 3 It is a diagram of the round terminal group;

[0037] Figure 4 It is a sectional view of the rolled round terminal head;

[0038] Figure 5 It is a diagram of the A round terminal group;

[0039] Figure 6 It is a diagram of the B round terminal group;

[0040] Figure 7 It is a partial sectional view of the insert component;

[0041] Figure 8 It is an arrangement diagram of the insert component;

[0042] Figure 9 It is a diagram of the connector with overall sealing. Detailed Embodiments

[0043] The following combines the attachedFigures 1 to 9 and specific embodiments are used to describe the present invention in detail, but it is not intended to limit the present invention. Embodiment

[0044] As shown in the Figures 1 to 9 accompanying drawings, a high-density pin socket connector for a PCB general testing machine and its manufacturing process, the connector comprising: an insert component 1 and an overall encapsulation member 2;

[0045] The insert component 1 includes an insert 11 and a round terminal group 12; the insert 11 encapsulates the round terminal group 12;

[0046] The round terminal group 12 includes not less than 2 round terminals 121;

[0047] The round terminal 121 includes a terminal head 1211, a terminal middle part 1212, and a terminal tail 1213;

[0048] The terminal middle part 1212 is located between the terminal head 1211 and the terminal tail 1213;

[0049] One end of the terminal head 1211 is stamped into a cylinder;

[0050] An upper bend 1214 is provided between the terminal head 1211 and the terminal middle part 1212;

[0051] A lower bend 1215 is provided between the terminal tail 1213 and the terminal middle part 1212;

[0052] The insert 11 includes an upper encapsulation 111 and a middle encapsulation 112;

[0053] The upper encapsulation 111 encapsulates the cylinder of the terminal head 1211;

[0054] The middle encapsulation 112 encapsulates the terminal middle part 1212;

[0055] The insert components 1 are connected in parallel to form an insert component row 3;

[0056] The overall encapsulation member 2 performs overall encapsulation on the insert component row 3.

[0057] The round terminal group 12 includes an A round terminal group 13 and a B round terminal group 14; wherein the A round terminal group 13 and the B round terminal group 14 are staggered and arranged side by side;

[0058] The bending directions of the upper bend 1214 and the lower bend 1215 are opposite.

[0059] The bending directions of the upper bends 1214 on the A circular terminal group 13 and the B circular terminal group 14 are opposite, and the bending directions of the lower bends 1215 on the A circular terminal group 13 and the B circular terminal group 14 are opposite. While expanding the spacing between the circular terminals 121, the terminal heads 1211 of the A circular terminal group 13 and the B circular terminal group 14 are on the same straight line and the terminal tails 1213 are on the same straight line.

[0060] The top of the terminal head 1211 is exposed above the top of the upper sealant 111; the terminal tail 1213 is exposed on one side of the middle sealant 112.

[0061] An integral sealant groove 113 is provided between the upper sealant 111 and the middle sealant 112, and three side sealant grooves 114 with different lengths are provided on the other side of the middle sealant 112; among them, the integral sealant 2 performs integral sealing on the integral sealant groove 113 and the side sealant grooves 114.

[0062] The insert component 1 includes an A insert component 16 and a B insert component 17; the terminal tails 1213 of the A insert component 16 and the B insert component 17 are stacked in a uniformly concave-convex and staggered manner, showing a complementary and meshing shape.

[0063] The A insert component 16 and the B insert component 17 are stacked in an alternating and parallel manner.

[0064] The cylinder of the terminal head 1211 is stamped along the central axis. First, it is stamped into a V-shaped cross-section, then into a U-shaped cross-section, and finally into a circular shape, for increasing the contact area at the top of the terminal.

[0065] Embodiment 2

[0066] As shown in the attached Figure 1 and Figure 9 figures, the process includes the following steps:

[0067] First, roll the head of the circular terminal; first cut the circular terminal from the copper sheet; then stamp it along the central axis, first into a V-shaped cross-section, then into a U-shaped cross-section, and finally into a circular shape;

[0068] Second, bend the circular terminal group. Bend it in two groups. The bending directions of the upper bends and the lower bends of the terminals in the same group are opposite; the bending directions of different groups are opposite; the two groups are staggered side by side; thereby expanding the spacing between the circular terminals;

[0069] Third, perform insertion. Stagger the arrangement spacing of the circular terminal group and perform insertion to form an A insert component and a B insert component;

[0070] Fourth, stack the A insert component and the B insert component in an alternating manner; the terminal tails of the A insert component and the B insert component are stacked in a uniformly concave-convex and staggered manner, showing a complementary and meshing shape;

[0071] Fifth, perform overall positioning on the stacked insert components; the positioning is carried out by a positioning fixture, which can achieve sufficient strength and precision, and the dimensional precision can reach ±0.005 mm;

[0072] Sixth, perform overall sealing on the side sealant grooves and the overall sealant grooves.

[0073] Thus, the object of the present invention is achieved. The overall dimensional precision of the pin connector is high, and the form and position precision is high.

[0074] Each needle is repositioned by a high-precision positioning hole, ensuring the position precision of the needle. It meets the requirements of stability and durability and can reduce costs.

[0075] As is known by common technical knowledge, the technical solution can be implemented by other embodiments that do not depart from its spiritual essence or essential features. Therefore, the above-disclosed embodiments are illustrative in all aspects and not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are encompassed by the present invention.

Claims

1. A high-density pin socket connector for a PCB general testing machine, the connector comprising: Insert component and integral encapsulation component; characterized in that: The insert component includes an insert and a round terminal group; the insert encapsulates the round terminal group; The round terminal group contains no less than 2 round terminals; The round terminal includes a terminal head, a terminal middle part, and a terminal tail; The middle between the terminal head and the terminal tail is the terminal middle part; One end of the terminal head is stamped into a cylinder; There is an upper bend between the terminal head and the terminal middle part; There is a lower bend between the terminal tail and the terminal middle part; The insert is upper encapsulation and middle encapsulation; The upper encapsulation encapsulates the cylinder of the terminal head; The middle encapsulation encapsulates the terminal middle part; The insert components are connected in parallel to form an insert component row; The integral encapsulation component integrally encapsulates the insert component row; The round terminal group includes an A round terminal group and a B round terminal group; the A round terminal group and the B round terminal group are staggered and arranged side by side; the bending directions of the upper bend and the lower bend are opposite; the bending directions of the upper bends of the A round terminal group and the B round terminal group are opposite, and the bending directions of the lower bends of the A round terminal group and the B round terminal group are opposite, for expanding the distance between the round terminals while the terminal heads of the A round terminal group and the B round terminal group are on the same straight line and the terminal tails are on the same straight line; the insert component includes an A insert component and a B insert component; the terminal tails of the A insert component and the B insert component are evenly concavo-convex and staggered and stacked, showing a complementary and meshing state.

2. The high-density pin socket connector for a PCB general testing machine according to claim 1, wherein: The top of the terminal head is exposed on the top of the upper encapsulation; the terminal tail is exposed on one side of the middle encapsulation.

3. A high-density pin socket connector for a PCB general testing machine according to claim 1, characterized in that: There is an integral encapsulation groove between the upper encapsulation and the middle encapsulation, and there are three side encapsulation grooves with different lengths on the other side of the middle encapsulation; the integral encapsulation component integrally encapsulates the integral encapsulation groove and the side encapsulation grooves.

4. A high-density pin socket connector for a general PCB testing machine according to claim 1, characterized in that: The A insert component and the B insert component are staggered and arranged side by side and stacked.

5. A high-density pin socket connector for a PCB general testing machine according to claim 1, characterized in that: The cylinder of the terminal head is stamped along the central axis first into a V-shaped cross-section, then into a U-shaped cross-section, and finally into a circular shape, for increasing the contact area at the top of the terminal.

6. The manufacturing process of a high-density pin socket connector for a PCB general testing machine is characterized by: This process includes the following steps: First, roll the round terminal head; first cut the round terminal from the copper sheet; then stamp it along the central axis first into a V-shaped cross-section, then into a U-shaped cross-section, and finally into a circular shape; Second, bend the round terminal group, bend it in two groups, the bending directions of the upper bend and the lower bend of the terminals in the same group are opposite; the bending directions of different groups are opposite; the two groups are staggered and arranged side by side; thereby expanding the distance between the round terminals; Third, perform insertion, stagger the arrangement spacing of the round terminal group, and perform insertion to form an A insert component and a B insert component; Fourth, stack the A insert component and the B insert component in a staggered manner; the terminal tails of the A insert component and the B insert component are evenly concavo-convex and staggered and stacked, showing a complementary and meshing state; Fifth, perform overall positioning on the stacked insert components; perform positioning by a positioning fixture, and the positioning fixture can achieve sufficient strength and precision, and the dimensional precision reaches ±0.005 mm; Sixth, integrally encapsulate the side encapsulation grooves and the integral encapsulation groove.

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