A crimping tool for CPCI connector rework

Abstract

The utility model relates to connector assembly technical field provides a kind of compression tool for CPCI connector rework, it include: base, support block and compression block;Base is used to place the circuit board that has been crimped with CPCI connector with rework, the area corresponding with CPCI connector on base is equipped with multiple mounting holes, and it is used to accommodate CPCI connector and is penetrated in base;At least one support block is installed in mounting hole, multiple guide holes are set one-to-one with the pin hole on circuit board, and guide hole is used to supply the pin of the first side of backplane connector to set;Compression block has multiple side-by-side arrangement's accommodating groove towards the side of backplane connector, accommodating groove is used to accommodate the pin of the second side of backplane connector, to carry out crimping between rework backplane connector and circuit board under the action of the crimping force of compression block to backplane connector.This embodiment can adapt to the rework replacement of CPCI connector in different positions, enhance the universality of compression tool, improve the rework efficiency of compression tool.

Description

Technical Field

[0001] This utility model relates to the field of connector assembly technology, and in particular to a crimping tool for reworking CPCI connectors. Background Technology

[0002] When connecting a CPCI connector to a circuit board, specialized tooling is required to assist in the connection between the CPCI connector and the circuit board to ensure a high success rate of crimping. The crimping between the circuit board and the CPCI connector typically uses a pin-pin mating method, where the pins on the connector are pressed into pinholes on the circuit board.

[0003] Since CPCI connectors consist of a backplane connector and a mating housing, in practical applications, the backplane connector must first be crimped onto the circuit board, and then the mating housing is assembled onto the exposed pins of the backplane connector on the other side of the circuit board. Currently, crimping fixtures are only suitable for crimping a single side of the connector to the circuit board, i.e., the connector pins do not protrude from the circuit board or the exposed pins do not require the mating housing. In actual production, if some of the multiple CPCI connectors already installed on the circuit board are damaged and need to be replaced, and only the damaged connectors are replaced, the existing crimping fixtures cannot be used because the backplane connectors are now all mounted on the mating housing, unlike the initial crimping state. Utility Model Content

[0004] This invention provides a crimping fixture for reworking CPCI connectors, which solves the problem that existing crimping fixtures are only suitable for assembling CPCI connectors and circuit boards for the first crimping on one side, and cannot meet the crimping requirements for reworking CPCI connectors.

[0005] This utility model provides a crimping fixture for reworking CPCI connectors, comprising:

[0006] A base is used to place a circuit board that has been crimped with a CPCI connector and is to be reworked. The base has multiple mounting holes in the area corresponding to the CPCI connector. The mounting holes pass through the base along the thickness direction and are used to accommodate the CPCI connector.

[0007] A support block, at least one of the support blocks is installed in the mounting hole, the support block is correspondingly set to the backplane connector to be reworked, the support block is provided with a plurality of through guide holes, the plurality of guide holes are respectively set to correspond one-to-one with the pin holes on the circuit board, the guide holes are used for the pins of the first side of the backplane connector to pass through;

[0008] A crimping block has multiple side-by-side receiving slots on the side facing the backplane connector. The receiving slots are used to receive pins on the second side of the backplane connector, so that the reworked backplane connector is crimped to the circuit board under the crimping force of the crimping block on the backplane connector.

[0009] According to the present invention, a crimping fixture for reworking CPCI connectors is provided, wherein the thickness of the support block is greater than the length of the pins on the first side of the reworked backplane connector protruding from the circuit board.

[0010] According to the present invention, a crimping tool for reworking CPCI connectors is provided, wherein the guide hole has a frustum structure;

[0011] The larger end of the frustum structure faces the circuit board, and the central axis of the frustum structure is coaxial with the central axis of the pin hole of the circuit board.

[0012] According to the present invention, a crimping fixture for reworking CPCI connectors is provided, wherein the diameter of the large end of the frustum structure is 0.18 mm to 0.22 mm larger than the pin on the first side, and the diameter of the small end of the frustum structure is 0 mm to 0.02 mm larger than the pin on the first side.

[0013] According to the present invention, a crimping tool for reworking CPCI connectors is provided, wherein the crimping block has positioning holes on both sides facing the inner wall of the backplate connector.

[0014] The inner wall of the backplate connector has a positioning structure, the positioning hole is adapted to the positioning structure and is arranged along the height direction of the crimping block.

[0015] According to the present invention, a crimping fixture for reworking CPCI connectors is provided, wherein the two sides of the receiving groove are arranged in parallel, and the bottom of the receiving groove is arc-shaped.

[0016] According to the present invention, a crimping fixture for reworking CPCI connectors is provided, wherein the wall of the mounting hole is inclined along the height direction of the base, and the diameter of the mounting hole on the side facing the circuit board is larger than the diameter on the side away from the circuit board.

[0017] The outer wall of the support block is also inclined, and the outer wall of the support block is adapted to the inner wall of the mounting hole.

[0018] According to the present invention, a crimping fixture for reworking CPCI connectors is provided, wherein the base has a groove on the side facing the circuit board, and the groove is used to clamp the circuit board.

[0019] According to the present invention, a crimping fixture for reworking CPCI connectors is provided, wherein the base has a pickup groove on the side facing the circuit board;

[0020] The pickup slot extends perpendicularly to the groove. When the circuit board is installed in the groove, both ends of the pickup slot are exposed on opposite sides of the circuit board.

[0021] According to the present invention, a crimping fixture for reworking CPCI connectors is provided, wherein the groove is provided with a rounded corner at the corner of the circuit board.

[0022] This utility model provides a crimping fixture for reworking CPCI connectors. After a damaged CPCI connector is disassembled, the crimping fixture assists in the assembly of a new backplane connector and circuit board. The crimping fixture includes a base, a crimping block, and a support block. The base supports the backplane connector and has mounting holes to accommodate undamaged CPCI connectors that do not need to be disassembled. At least one support block is provided for mounting within the corresponding mounting holes of the backplane connector to be reworked. The support block has guide holes to accommodate pins on the first side of the backplane connector. The crimping block has receiving grooves to accommodate pins on the second side of the backplane connector, thus facilitating the crimping process between the reworked backplane connector and circuit board. During the crimping process, the receiving groove protects the pins on the second side of the backplane connector, while the guide hole protects and guides the pins on the first side of the backplane connector. This ensures that the pins on both sides of the backplane connector are protected during crimping, preventing pin deformation and ensuring reliability during the crimping process between the CPCI connector and the circuit board. Furthermore, the support block can be installed in different mounting holes as needed, and CPCI connectors that do not require rework can be well supported by the base. Only reworked CPCI connectors need to be disassembled and replaced. This adaptability to rework and replacement of CPCI connectors in different positions enhances the versatility of the crimping fixture and improves its rework efficiency. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the main structure of the backplane connector provided by this utility model.

[0025] Figure 2 This is a three-dimensional structural diagram of the pressure shell provided by this utility model.

[0026] Figure 3 This is a schematic diagram of the installation of the CPCI connector and circuit board provided by this utility model.

[0027] Figure 4 This is a top view of the support block provided by this utility model.

[0028] Figure 5 This utility model provides Figure 4 A cross-sectional structural diagram.

[0029] Figure 6 This is a schematic diagram of the main structure of the crimping block provided by this utility model.

[0030] Figure 7 This is a top view of the pressing block provided by this utility model.

[0031] Figure 8 This is a top view of the base provided by this utility model.

[0032] Figure 9 This utility model provides Figure 8 A cross-sectional structural diagram.

[0033] Figure label:

[0034] 1. Crimping fixture;

[0035] 11. Base; 12. Pressing block; 13. Support block; 111. Mounting hole; 112. Groove; 113. Pick-up slot; 114. Rounded corner; 121. Receiving slot; 122. Positioning hole; 131. Guide hole; 1311. Large end; 1312. Small end;

[0036] 2. CPCI connector; 21. Backplane connector; 22. Press-fit housing; 211. Pins on the first side; 212. Pins on the second side;

[0037] 3. Circuit board. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. 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.

[0039] In the description of the embodiments of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of clarifying the embodiments of 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 the embodiments of this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0040] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model according to the specific circumstances.

[0041] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0042] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0043] The following is combined Figures 1 to 9The crimping fixture for reworking CPCI connectors provided in this utility model will be described in detail through specific embodiments and application scenarios.

[0044] like Figure 4 , Figure 6 and Figure 8 As shown, this embodiment provides a crimping fixture 1 for reworking CPCI connectors, including: a base 11, a support block 13 and a crimping block 12.

[0045] The base 11 is used to place the circuit board 3 that has been crimped with the CPCI connector 2 and is to be reworked. The area on the base 11 corresponding to the CPCI connector 2 is provided with multiple mounting holes 111. Along the thickness direction of the base 11, the multiple mounting holes 111 pass through the base 11 and are used to accommodate the CPCI connector 2.

[0046] At least one support block 13 is installed in the mounting hole 111. The support block 13 is correspondingly set to the backplane connector 21 to be reworked. The support block 13 is provided with multiple through guide holes 131. The multiple guide holes 131 are corresponding to the pin holes on the circuit board 3. The guide holes 131 are used for the pins 211 on the first side of the backplane connector 21 to pass through.

[0047] The crimping block 12 has a plurality of side-by-side receiving slots 121 on the side facing the backplane connector 21. The receiving slots 121 are used to receive the pins 212 on the second side of the backplane connector 21, so that the reworked backplane connector 21 is crimped to the circuit board 3 under the crimping force of the crimping block 12 on the backplane connector 21.

[0048] Understandably, such as Figure 1 , Figure 2 and Figure 3 As shown, the CPCI connector 2 includes a backplane connector 21 and a mating housing 22. When assembling the CPCI connector 2 with the circuit board 3, the backplane connector 21 and the mating housing 22 are installed from both sides of the circuit board 3 respectively. The pins 211 on the first side of the backplane connector 21 pass through the pin holes of the circuit board 3 and are inserted into the pin holes of the mating housing 22.

[0049] Typically, there is one circuit board 3. Multiple mounting areas corresponding to the CPCI connector 2 are typically provided on the circuit board 3, spaced apart. Multiple CPCI connectors 2 are usually mounted on the circuit board 3. When some CPCI connectors 2 are damaged and need replacement, the damaged backplane connector 21 and mating housing 22 are removed from the circuit board 3, and the replacement backplane connector 21 and mating housing 22 are installed. In this embodiment, a crimping fixture 1 is used to assist in the rework installation of the CPCI connectors 2.

[0050] The base 11 provides mounting support for the circuit board 3. In this embodiment, the base 11 is provided with multiple mounting holes 111, which can accommodate CPCI connectors 2. Therefore, when reworking the CPCI connectors 2, only the damaged CPCI connectors 2 need to be removed, while the remaining undamaged CPCI connectors 2 can remain on the circuit board 3. Then, the circuit board 3, which has been crimped with the CPCI connectors 2, is placed on the base 11, and the undamaged CPCI connectors 2 are aligned with the mounting holes 111 and inserted. At this time, the circuit board 3 and the base 11 achieve good support, and it is not necessary to remove the crimping shell 22 of the crimped CPCI connectors 2. Subsequently, only the reworked CPCI connectors 2 need to be crimped, saving the crimping process and improving the efficiency of rework.

[0051] To ensure the re-crimping effect of the reworked backplane connector 21 and circuit board 3, this embodiment uses a support block 13 to assist in the crimping process. The support block 13 is placed within the mounting holes 111. Specifically, only one support block 13 can be used, with each support block 13 sequentially placed within the mounting holes 111 corresponding to the CPCI connector 2 to be reworked. After installing one backplane connector 21 and circuit board 3, the support block 13 is moved to the next mounting hole 111. Alternatively, multiple support blocks 13 can be used, each placed within a different mounting hole 111 corresponding to a different backplane connector 21 to be reworked.

[0052] Because the pins 211 on the first side of the backplane connector 21 are relatively long, they are prone to deformation, bending, or even breakage during the crimping process between the backplane connector 21 and the circuit board 3 after passing through the pin holes of the circuit board 3. Therefore, this embodiment provides multiple guide holes 131 on the support block 13. Since the guide holes 131 correspond one-to-one with the pin holes of the circuit board 3, that is, multiple guide holes 131 correspond one-to-one with the first pins of the backplane connector 21, the first-side pins 211, passing through the pin holes of the circuit board 3, can extend into the corresponding guide holes 131 and continue to move forward along the depth direction of the guide holes 131 under the guidance of the guide holes 131. Because the guide holes 131 can guide and constrain the movement direction of the first-side pins 211, the first-side pins 211 can maintain a vertical position during movement, thereby avoiding deformation and bending of the first-side pins 211 during movement. Furthermore, since each pin 211 on the first side can extend into the corresponding guide hole 131 after passing through the circuit board 3, the adjacent pins 211 on the first side can move within their respective guide holes 131, thus avoiding interference between the adjacent pins 211 on the first side.

[0053] On the side of the circuit board 3 facing away from the base 11, this embodiment provides a crimping block 12 to assist in the installation of the reworked backplane connector 21. Multiple receiving slots 121 are arranged side-by-side, each corresponding to a row of pins 212 on the second side. The multiple rows of receiving slots 121 can accommodate multiple rows of pins 212 on the second side. When the crimping block 12 is installed onto the reworked backplane connector 21, the pins 212 on the second side of the backplane connector 21 all extend into the receiving slots 121. The plane formed by the openings of the multiple receiving slots 121 abuts against the housing of the backplane connector 21. The pushing force on the crimping block 12 can be directly transmitted to the backplane connector 21 through the plane at the opening, avoiding stress on the pins 212 on the second side of the backplane connector 21, thus protecting the pins 212 on the second side. Specifically, the depth of the receiving slot 121 is less than the height of the crimping block 12. The portion of the crimping block 12 without the receiving groove 121 is positioned away from the backplate connector 21, and the force of the crimping device is applied to the solid portion of the crimping block 12. The solid portion of the crimping block 12 avoids deformation when subjected to force, while simultaneously transmitting the force to the portion with the receiving groove 121. This allows the force on the crimping block 12 to be transmitted through the solid portion, via the groove wall of the receiving groove 121, to the plane abutting against the housing of the backplate connector 21. This achieves precise transmission of the crimping device's force and protects the pins 212 on the second side from being shielded during the crimping process. The groove wall of the receiving groove 121 constrains the transmission path of the crimping force.

[0054] The present invention provides a crimping fixture 1 for reworking CPCI connectors. This fixture assists in crimping during the assembly of a new backplane connector 21 and circuit board 3 after the damaged CPCI connector 2 has been disassembled. The crimping fixture 1 includes a base 11, a crimping block 12, and a support block 13. The base 11 supports the backplane connector 21 and has mounting holes 111 to accommodate undamaged CPCI connector 2 that does not need to be disassembled. At least one support block 13 is provided for installation within the corresponding mounting holes 111 of the backplane connector 21 to be reworked. A guide hole 131 is provided on the support block 13 to accommodate the pins 211 on the first side of the backplane connector 21. The crimping block 12 has a receiving groove 121 to accommodate the pins 212 on the second side of the backplane connector 21, thus facilitating the crimping of the reworked backplane connector. During the crimping process between the connector 21 and the circuit board 3, the receiving groove 121 can protect the pins 212 on the second side of the backplate connector 21, and the guide hole 131 can protect and guide the pins 211 on the first side of the backplate connector 21, so that the pins on both sides of the backplate connector 21 can be protected during the crimping process, avoiding pin deformation and achieving reliability in the crimping process between the CPCI connector 2 and the circuit board 3. In addition, the support block 13 can be installed in different mounting holes 111 as needed, and the CPCI connector 2 that does not need to be reworked can also be well supported by the base 11. Only the CPCI connector 2 that needs to be reworked needs to be disassembled and replaced. It can adapt to the rework and replacement of CPCI connector 2 in different positions, enhance the universality of the crimping fixture 1, and improve the rework efficiency of the crimping fixture 1.

[0055] like Figure 4 and Figure 5 As shown, the thickness of the support block 13 in this embodiment is greater than the length of the pin 211 on the first side of the reworked backplane connector 21 that protrudes from the circuit board 3.

[0056] Understandably, to ensure that the pins 211 on the first side of the backplane connector 21 are protected along their entire length, the thickness of the base 11 in this embodiment is greater than the length of the pins 211 on the first side of the backplane connector 21 that protrude from the circuit board 3, that is, the length of the guide hole 131 is greater than the length of the pins 211 on the first side that protrude from the circuit board 3. The pins 211 on the first side of the backplane connector 21 pass through the pin holes of the circuit board 3 and extend into the guide holes 131, without protruding from the guide holes 131. This further ensures that after the pins 211 on the first side pass through the pin holes of the circuit board 3, they are constrained by their respective guide holes 131, and no interference between adjacent pins occurs.

[0057] Specifically, the length of the guide hole 131 is 0.18 to 0.22 mm longer than the length of the pin 211 on the first side of the backplane connector 21 that protrudes from the circuit board 3.

[0058] like Figure 4 and Figure 5 As shown, the guide hole 131 in this embodiment has a frustum structure.

[0059] The larger end 1311 of the frustum structure faces the circuit board 3, and the central axis of the frustum structure is coaxial with the central axis of the pin hole of the circuit board 3.

[0060] Understandably, the inner diameter of the guide hole 131 of the frustum structure is slightly larger at one end and slightly smaller at the other. The inner wall of the guide hole 131 is inclined relative to the central axis of the frustum structure. Since the larger end 1311 of the frustum structure faces the circuit board 3 and the smaller end 1312 of the frustum structure faces the side of the base 11 away from the circuit board 3, the diameter of the guide hole 131 gradually narrows along the thickness direction of the base 11. During the process of the first-side pin 211 extending into the guide hole 131, the first-side pin 211 is constrained and limited by the gradually narrowing circular hole, which is beneficial to the reliability and stability of the movement of the first-side pin 211 relative to the base 11.

[0061] like Figure 4 and Figure 5 As shown, in this embodiment, the diameter of the large end 1311 of the frustum structure is 0.18 mm to 0.22 mm larger than the pin 211 on the first side, and the diameter of the small end 1112 of the frustum structure is 0 mm to 0.02 mm larger than the pin 211 on the first side.

[0062] Understandably, the diameter of the larger end 1311 of the frustum structure can be 0.18 mm, 0.2 mm, or 0.22 mm larger than the pin 211 on the first side. The diameter of the smaller end 1312 of the frustum structure can be 0 mm, 0.01 mm, or 0.02 mm larger than the pin 211 on the first side.

[0063] In one example, the diameter of the pins of CPCI connector 2 is 0.6 mm. The diameter of the large end 1311 of the frustum structure in this embodiment can be 0.78 mm, 0.8 mm, or 0.82 mm. The diameter of the small end 1312 of the frustum structure in this embodiment can be 0.6 mm, 0.61 mm, or 0.62 mm.

[0064] like Figure 6 and Figure 7 As shown, the crimping block 12 in this embodiment has positioning holes 122 on both sides of the inner wall of the backplate connector 21.

[0065] The inner wall of the backplate connector 21 has a positioning structure, the positioning hole 122 is adapted to the positioning structure and is set along the height direction of the crimping block 12.

[0066] Understandably, the crimp block 12 has positioning holes 122 on both sides, which can mate with the positioning structure of the backplane connector 21. When the crimp block 12 is installed onto the reworked backplane connector 21, the positioning holes 122 can quickly position the crimp block 12 relative to the backplane connector 21, so that each row of pins 212 on the second side of the backplane connector 21 corresponds to each receiving slot 121, without the need for repeated adjustments to the relative positions of the pins and receiving slots 121 on site. The positioning holes 122 in this embodiment improve the assembly efficiency of the crimp block 12 and the backplane connector 21 and ensure the accuracy of the assembly.

[0067] like Figure 6 and Figure 7 As shown, in this embodiment, the two sides of the receiving groove 121 are arranged in parallel, and the bottom of the receiving groove 121 is arc-shaped.

[0068] Understandably, the parallel arrangement of the two sides of the receiving groove 121 creates a receiving space between the two sides to accommodate the pin 212 on the second side. The bottom of the receiving groove 121 is arc-shaped to prevent the tip of the inserted pin from contacting the receiving groove 121, thus providing an arc-shaped transition space for the tip of the pin 212 on the second side and ensuring protection for the tip of the pin 212 on the second side.

[0069] like Figure 5 and Figure 9 As shown, in this embodiment, the wall of the mounting hole 111 is inclined along the height direction of the base 11, and the diameter of the mounting hole 111 on the side facing the circuit board 3 is larger than the diameter of the side away from the circuit board 3.

[0070] The outer wall of the support block 13 is also inclined, and the outer wall of the support block 13 is adapted to the inner wall of the mounting hole 111.

[0071] Understandably, because the wall of the mounting hole 111 is inclined, the outer wall of the support block 13 is also inclined. When the support block 13 is inserted into the mounting hole 111, the inclined wall can guide the center of the support block 13 to coincide with the center of the mounting hole 111. This allows the guide hole 131 on the support block 13 to be aligned with the pin hole on the circuit board 3, facilitating the insertion of the pin 211 on the first side of the backplane connector 21 into the guide hole 131.

[0072] Optionally, the angle between the outer wall of the support block 13 and the height direction of the support block 13 is α, and α can be 5°.

[0073] Optionally, the angle between the wall of the mounting hole 111 and the height direction of the base 11 is β, and β can also be 5°.

[0074] It should be noted that, in order to ensure that there is no interference when the crimped CPCI connector 2 is assembled in the mounting hole 111, the size of the hole wall at the end of the mounting hole 111 away from the circuit board 3 needs to be no less than the size of the outer contour of the CPCI connector 2.

[0075] like Figure 8 As shown, the base 11 of this embodiment has a groove 112 on the side facing the circuit board 3, and the groove 112 is used to hold the circuit board 3.

[0076] Understandably, the inner wall of the groove 112 is the same size as the circuit board 3, which can hold the circuit board 3 in the groove 112, ensuring that the circuit board 3 will not wobble during the pressing process with the backplate connector 21, and also ensuring that the pin holes on the circuit board 3 correspond one-to-one with the guide holes 131 of the support block 13.

[0077] like Figure 8 As shown, the base 11 in this embodiment has a pickup slot 113 on the side facing the circuit board 3.

[0078] The pickup slot 113 extends perpendicularly to the groove 112. When the circuit board 3 is installed in the groove 112, the two ends of the pickup slot 113 are exposed on opposite sides of the circuit board 3.

[0079] Understandably, after the circuit board 3 is crimped with the backplate connector 21, the circuit board 3 and the base 11 are in close contact due to the crimping force, making it difficult to remove the circuit board 3 from the base 11. The pickup slot 113 can accommodate the operator's fingers, allowing the operator to pry the circuit board 3 with their fingers, thus facilitating the quick removal of the circuit board 3 from the base 11 and enabling subsequent assembly of the circuit board 3 with the pressure shell 22.

[0080] Optionally, this embodiment has multiple pickup slots 113, which allows multiple fingers to be inserted into multiple pickup slots 113 when the circuit board 3 is long, so as to remove the circuit board 3 from the base 11, thereby improving the efficiency of removing the circuit board 3 from the base 11.

[0081] like Figure 8 As shown, the groove 112 in this embodiment is provided with a rounded corner 114 at the corner where it is fitted onto the circuit board 3.

[0082] Understandably, since the groove 112 and the circuit board 3 are the same size, the four corners of the circuit board 3 are easily damaged at the connection points with the groove 112. To protect the four corners of the circuit board 3, this embodiment provides rounded corners 114 at the corners where the groove 112 and the circuit board 3 are fitted together. The rounded corners 114 prevent the connection between the circuit board 3 and the groove 112 from being completely locked, leaving a gap. During the crimping process between the circuit board 3 and the backplate connector 21, the force on the corners of the circuit board 3 can be absorbed by the gaps in the rounded corners 114, ensuring the integrity of the four corners of the circuit board 3 during the crimping process.

[0083] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A crimping tool for reworking CPCI connectors, characterized in that, include: A base is used to place a circuit board that has been crimped with a CPCI connector and is to be reworked. The base has multiple mounting holes in the area corresponding to the CPCI connector. The mounting holes pass through the base along the thickness direction and are used to accommodate the CPCI connector. A support block, at least one of the support blocks is installed in the mounting hole, the support block is correspondingly set to the backplane connector to be reworked, the support block is provided with a plurality of through guide holes, the plurality of guide holes are respectively set to correspond one-to-one with the pin holes on the circuit board, the guide holes are used for the pins of the first side of the backplane connector to pass through; A crimping block has multiple side-by-side receiving slots on the side facing the backplane connector. The receiving slots are used to receive pins on the second side of the backplane connector, so that the reworked backplane connector is crimped to the circuit board under the crimping force of the crimping block on the backplane connector.

2. The crimping fixture for reworking CPCI connectors according to claim 1, characterized in that, The thickness of the support block is greater than the length of the pins on the first side of the reworked backplane connector that protrude from the circuit board.

3. The crimping fixture for reworking CPCI connectors according to claim 1, characterized in that, The guide hole has a frustum structure; The larger end of the frustum structure faces the circuit board, and the central axis of the frustum structure is coaxial with the central axis of the pin hole of the circuit board.

4. The crimping fixture for reworking CPCI connectors according to claim 3, characterized in that, The diameter of the larger end of the frustum structure is 0.18 mm to 0.22 mm larger than the pin on the first side, and the diameter of the smaller end of the frustum structure is 0 mm to 0.02 mm larger than the pin on the first side.

5. The crimping fixture for reworking CPCI connectors according to claim 1, characterized in that, The crimping block has positioning holes on both sides facing the inner wall of the backplate connector; The inner wall of the backplate connector has a positioning structure, the positioning hole is adapted to the positioning structure and is arranged along the height direction of the crimping block.

6. The crimping fixture for reworking CPCI connectors according to claim 1, characterized in that, The walls of the receiving groove are arranged parallel to each other, and the bottom of the receiving groove is arc-shaped.

7. The crimping fixture for reworking CPCI connectors according to claim 1, characterized in that, Along the height direction of the base, the wall of the mounting hole is inclined, and the diameter of the mounting hole on the side facing the circuit board is larger than the diameter of the hole on the side away from the circuit board. The outer wall of the support block is also inclined, and the outer wall of the support block is adapted to the inner wall of the mounting hole.

8. The crimping fixture for reworking CPCI connectors according to claim 1, characterized in that, The base has a groove on the side facing the circuit board, the groove being used to hold the circuit board in place.

9. The crimping fixture for reworking CPCI connectors according to claim 8, characterized in that, The base has a pickup slot on the side facing the circuit board; The pickup slot extends perpendicularly to the groove. When the circuit board is installed in the groove, both ends of the pickup slot are exposed on opposite sides of the circuit board.

10. The crimping fixture for reworking CPCI connectors according to claim 8, characterized in that, The groove is provided with a rounded corner at the corner where it is fitted onto the circuit board.

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