Height-adjustment-free quick positioning tool for bent insertion clearance fit contact element for connector

Abstract

The invention relates to a height-adjustment-free quick positioning tool for a bent insertion clearance fit contact element for a connector. The height-adjustment-free quick positioning tool consists of two parts, namely an auxiliary loading mechanism and an encapsulation clamp, the auxiliary loading mechanism comprises a locking nut, a pressing plate, a positioning block, a positioning column C, a positioning column B, a base fixing block and a positioning column A; the potting clamp comprises a fixing plate, contact pins, a bottom plate and screws. According to the invention, through the interference design of the encapsulation clamp, the contact piece is axially fixed, and the axial size of the contact piece is ensured; meanwhile, the orientation of the tail end of the contact piece is limited through the guide groove of the positioning block, and it is guaranteed that the orientation of the contact piece does not deflect; meanwhile, in order to facilitate the installation and disassembly of the contact piece, the positioning block is separated into independent thin blocks, thereby achieving the convenient installation of the contact piece and the rapid disassembly of the clamp, and guaranteeing the reliable assembly of the connector.

Description

TECHNICAL FIELD

[0001] The application relates to a connector with a bent insertion gap fit contact quick positioning tool without height adjustment, and belongs to the technical field of electric connectors. BACKGROUND

[0002] Rectangular connectors are widely used in micro devices due to the advantages of compact structure, reliable butt joint, high-density arrangement and good weldability. For connectors with small core number and regular arrangement, considering the miniaturization of the connector, gap fit is usually adopted between the contact and the base, and the contact may shake, thereby affecting the consistency of the product butt joint size (height). Auxiliary interference technology is usually used to assist in fixing the contact, and the size parameters of the connector are ensured through glue curing. For the connector with the contact in the bent insertion form and the gap fit with the base, due to the large number of contacts and the long contact, the auxiliary interference technology can inhibit the axial movement of the contact to a certain extent, but cannot limit the axial rotation of the contact, resulting in the problems of difficulty in adjusting the tail end orientation of the contact after glue curing and poor height consistency of the contact. Therefore, the product cannot be used conventionally, and a tool that can effectively ensure the size of the product is urgently needed in production. SUMMARY

[0003] The application aims to solve the technical problem that the contact can be well positioned and clamped during the process of contact installation and height adjustment, the consistency of the product butt joint size can be well ensured, and the product quality can be improved.

[0004] In order to solve the above technical problems, the application adopts the following technical scheme: A connector with a bent insertion gap fit contact quick positioning tool without height adjustment is composed of an auxiliary installation mechanism and a sealing clamp. The auxiliary installation mechanism comprises a locking nut, a pressing plate, a positioning block, a positioning column C, a positioning column B, a base fixing block and a positioning column A. The locking nut is provided with a threaded hole A for fixing the pressing plate and the positioning block. The pressing plate and the positioning block are provided with a guide hole and a waist-shaped hole, and the parts are arranged in a stepped manner to avoid the contact, and the positioning block is provided with a groove for fixing the orientation of the contact. The positioning column C is provided with two external threads to realize the connection between the locking nut and the base fixing block, and gap fit with the waist-shaped hole. The positioning column B is gap fit with the guide hole and cooperates with the positioning column C to limit the position of the positioning block. The base fixing block is internally provided with a sunken cavity for positioning a product base, and is also internally provided with through hole A, through hole B and threaded hole B, which are connected with positioning column B, positioning column C and positioning column A to form a stable fixing structure; The positioning column A forms an interference fit with the through hole B and forms a guide limit with the fixing plate. The potting fixture comprises a fixing plate, a pin, a bottom plate and a screw. The fixing plate is internally provided with through hole C which forms a clearance fit with the positioning column A, and threaded hole C which is connected with the screw, the pin and the bottom plate, and the counterbore is used for fixing the pin. The pin is stepped and forms a contact piece fixing structure arranged according to the product structure with the counterbore, and forms an interference fit with the product contact piece, so that the contact piece is fixed after being pressed in to avoid axial movement and size deviation. The bottom plate is internally provided with a counterbore for limiting the screw and bearing the whole tool.

[0005] The beneficial effects of the above technical solution are: The application provides a method for quickly installing a contact piece of a contact piece gap fit connector between a contact piece arrangement rule and a base, and the method can realize convenient installation of the contact piece and quick disassembly of the fixture based on a discrete thin block and a stepped relief structure positioning block. A guide groove is arranged on the positioning block to fix the tail end of the contact piece. The potting fixture is designed with interference to axially fix the contact piece and ensure the axial size of the contact piece. Reasonable size design ensures reliable assembly of the connector. BRIEF DESCRIPTION OF DRAWINGS

[0006] Figure 1 FIG. 1 is a structural schematic diagram of the connector with a bent pin gap fit contact piece of the application.

[0007] Figure 2 FIG. 2 is a left sectional view. Figure 1

[0008] Figure 3 FIG. 3 is a top view. Figure 1

[0009] Figure 4 FIG. 4 is an exploded structural schematic diagram of the connector with the bent pin gap fit contact piece of the application.

[0010] ​​In the diagram: 1-Locking nut, 2-Pressure plate, 3-Locking block A, 4-Locking block B, 5-Locking block C, 6-Locking block D, 7-Locking block E, 8-Locking block F, 9-Locking block G, 10-Locking block H, 11-Locking block I, 12-Locking pin C, 13-Locking pin B, 14-Base fixing block, 15-Locking pin A, 16-Fixing plate, 17-Pin, 18-Base plate, 19-Screw, 20-Base, 21- Contact A, 22-Contact B, 23-Contact C, 24-Contact D, 25-Contact E, 26-Contact F, 27-Contact G, 28-Contact H, 29-Contact I, 30-Threaded Hole A, 31-Guide Hole, 32-Oval Hole, 33-Groove, 34-Through Hole A, 35-Through Hole B, 36-Threaded Hole B, 37-Through Hole C, 38-Threaded Hole C, 39-Counterhole, 40-Counterhead Hole.

[0011] Figure 5 for Figure 4 A schematic diagram of the structure of the central base positioning block.

[0012] Figure 6 for Figure 5 A bottom view.

[0013] Figure 7 for Figure 4 A schematic diagram of the structure of the fixed block.

[0014] Figure 8 for Figure 7 Top view.

[0015] Figure 9 for Figure 7 Left view.

[0016] Figure 10 for Figure 4 A schematic diagram of the structure of the fixed plate in the middle.

[0017] Figure 11 for Figure 10 Top sectional view.

[0018] Figure 12 for Figure 4 A schematic diagram of the mid-base plate.

[0019] Figure 13 for Figure 12 Top sectional view. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for explaining the present invention and are not intended to limit the present invention.

[0021] A connector with a curved plug clearance fit contact tool for quick positioning without height adjustment, which is composed of an auxiliary loading mechanism and a potting clamp; The auxiliary loading mechanism comprises a locking nut 1, a pressing plate 2, positioning blocks 3-11, a positioning column C 12, a positioning column B 13, a base fixed block 14, and a positioning column A 15. The locking nut 1 is provided with a threaded hole A 30 for fixing the pressing plate 2 and the positioning blocks 3-11. The pressing plate 2 and the positioning blocks 3-11 are provided with a guide hole 31 and a waist-shaped hole 32, and the arrangement of the parts presents a stepped shape for avoiding the contact pieces 21-29, and each of the positioning blocks 3-11 is provided with a groove 33 for fixing the orientation of the contact pieces 21-29. The positioning column C 12 is provided with two external threads to realize the connection between the locking nut 1 and the base fixed block 14, and clearance fit with the waist-shaped hole 32. The positioning column B 13 clearance fits with the guide hole 31 and cooperates with the positioning column C 12 to form a position limit for the positioning blocks. The base fixed block 14 is provided with a sunken cavity inside for positioning the product base 20, and is also provided with a through hole A 34, a through hole B 35, and a threaded hole B 36 inside for connecting with the positioning column B 13, the positioning column C 12, and the positioning column A 15 to form a stable fixing structure. The positioning column A 15 forms an interference fit with the through hole B 35 and forms a guide limit with the fixed plate 16. The potting clamp comprises a fixed plate 16, a pin 17, a bottom plate 18, and a screw 19. The fixed plate 16 is provided with a through hole C 37 inside for clearance fit with the positioning column A 15, and a threaded hole C 38 for connecting with the screw 19, the pin 17, and the bottom plate 18, and a counterbore 39 for fixing the pin 17. The pin 17 presents a stepped shape and forms a contact piece fixing structure arranged according to the product structure with the counterbore 39, and presents an interference fit with the product contact piece, so that the contact piece is fixed after being pressed in to avoid axial movement and size deviation. The bottom plate 18 is provided with a countersunk hole 40 inside for limiting the screw 19 and bearing the whole tool.

[0022] When the tool is used, the base 20 is placed in the base fixing block 14; the combination of the base 20, the base fixing block 14, the positioning column A 15, the positioning column B 13 and the positioning column C 12 is placed on the potting clamp; the positioning block 11 is placed on the combination through the guide hole 31 and the waist-shaped hole 32, the corresponding contact piece is placed according to the base hole position, and is pressed into the potting clamp according to the positioning block guide groove 33; the corresponding positioning block 10-3 and the contact piece 21-29 are installed through the above process, and the corresponding pressing plate 2 is locked through the locking nut 1; the contact piece is fixed by using the glue liquid at the corresponding position of the contact piece 21-29, so as to prevent the contact piece from loosening and fixing the size; the locking nut 1 and the positioning column C 12 are removed, and the positioning blocks 3-11 are transversely taken out; the corresponding connector is taken out, and the contact piece orientation fixing and correction-free work are completed.

[0023] The potting clamp is designed with interference, the contact piece is axially fixed, the axial size of the contact piece is ensured, the tail end orientation of the contact piece is limited through the groove 33 of the positioning block 3-11, and the orientation of the contact piece is ensured not to be inclined; in order to facilitate the installation and dismounting of the contact piece, the positioning blocks 3-11 are divided into independent thin blocks, the contact piece is conveniently installed, and the clamp is quickly dismounted, so that the reliable assembly of the connector is ensured.

[0024] The axial size of the contact piece is determined by means of the potting clamp composed of the fixing plate 16, the pin 17, the bottom plate 18 and the screw 19, the pin and the contact piece adopt the interference fit mode, and the axial movement of the contact piece is prevented.

[0025] The positioning of the auxiliary loading device and the potting clamp depends on the cooperation between the through hole C 37 and the positioning column A 15, and a quick dismounting structure is formed.

[0026] After the contact piece is loaded and solidified, the potting clamp needs to be separated from the loading auxiliary device, the locking nut 1 and the positioning column B 13 are removed, the positioning blocks are transversely withdrawn from top to bottom, and the product is separated from the loading auxiliary device, so that the fixing of the contact piece of the product is completed.

[0027] Through strict size design of the loading auxiliary device, the contact piece can meet the corresponding size assembly requirement after being loaded, and the orientation of the contact piece is fixed, so that the height adjustment-free effect is achieved.

[0028] The above description is only for the preferred examples of the present application, and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement and the like made within the scope of the claims of the present application should be within the protection scope of the present application.

Claims

1. A quick-positioning fixture for connectors with bent-end gap fit contacts that requires no height adjustment, characterized in that: It consists of two parts: an auxiliary loading mechanism and a potting clamp. The auxiliary loading mechanism includes a locking nut (1), a pressure plate (2), a positioning block (3-11), a positioning post C (12), a positioning post B (13), a base fixing block (14), and a positioning post A (15). The locking nut (1) is provided with a threaded hole A (30) for fixing the pressure plate (2) and the positioning block (3-11). The pressure plate (2) and the positioning blocks (3-11) are provided with guide holes (31) and waist-shaped holes (32). The parts are arranged in a stepped manner to avoid contact parts (21-29). Grooves (33) are provided on the positioning blocks (3-11) to fix the orientation of the contact parts (21-29). The positioning post C (12) is provided with two external threads to realize the connection between the locking nut (1) and the base fixing block (14) and the clearance fit between it and the waist-shaped hole (32); The positioning post B (13) is clearance-fitted with the guide hole (31) and cooperates with the positioning post C (12) to restrict the position of the positioning block; The base fixing block (14) is provided with a recessed cavity for positioning the product base (20). The base fixing block (14) is also provided with a through hole A (34), a through hole B (35) and a threaded hole B (36), which are connected to the positioning posts B (13), C (12) and A (15) to form a stable fixing structure. The positioning post A (15) forms an interference fit with the through hole B (35) and forms a guide limit with the fixing plate (16); The potting fixture includes a fixing plate (16), a pin (17), a base plate (18), and screws (19). The fixing plate (16) has a through hole C (37) which is clearance-fitted with the positioning post A (15). The threaded hole C (38) is connected with the screw (19), the pin (17) and the base plate (18). The countersunk hole (39) is used to fix the pin (17). The pin (17) is stepped and forms a contact fixing structure with the countersunk hole (39) arranged according to the product structure. It also has an interference fit with the product contact. After the contact is pressed in, its pressing size is fixed to avoid axial movement and size deviation. The base plate (18) has a countersunk hole (40) for limiting the screw (19) and for supporting the entire tool.

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