A terminal for quickly fixing a wire and its crimping fixture

Abstract

A terminal for quickly fixing a wire and its crimping jig. The terminal for quickly fixing a wire includes a terminal housing and a metal sheet. The terminal housing includes a body, a receiving groove, and a through hole. The metal sheet includes a base, a clamping sheet, and a wire stripping assembly. One end of two clamping sheets is connected to the base, and the other ends are bent towards each other. The crimping jig for quickly fixing a wire includes a base, a downward pressing mechanism, and a crimping mechanism. The crimping mechanism includes a pressing head block, a clamping block, a first pressing block, and a second pressing block. One end of the clamping block has an arc-shaped structure that is recessed inward. When the crimping mechanism presses downward, the two clamping sheets bend inward along the arc-shaped structure to clamp the wire tightly. The first pressing block and the second pressing block will press the wire into the wire stripping assembly and strip the outer insulating layer under the action of the wire stripping assembly, realizing automatic wire stripping and directly clamping the wire tightly, improving the efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of wiring terminals, and particularly relates to a terminal for quickly fixing a wire and a crimping jig therefor. Background Art

[0002] A wiring terminal is a fitting product used to achieve electrical connection and is applied for the convenience of wire connection. It is actually a metal sheet enclosed in insulating plastic, with holes at both ends for inserting wires and pins, and can be connected or disconnected as needed, which is more convenient and fast. In the prior art, the connection of wires to the terminal and the jig is achieved by inserting the wire into the connector and then tightening screws or other means to press the wire, thereby realizing electrical connection. For example, a crimping type wiring terminal and its usage method disclosed in Patent No. CN202011439607.1 mainly consists of a base component and a pressing component assembly. In actual use, after installing the wire at the installation position on the insulating base, the wire is fixed and pressed by rotating the pressing component, which is convenient and fast. Although this does not require screwing, the insulating layer outside the wire still needs to be manually peeled off before use, and automatic wire stripping and fixing cannot be achieved. At the same time, the whole process is relatively complex and the efficiency is low. Summary of the Invention

[0003] In view of this, the present invention provides a terminal for quickly fixing a wire and a crimping jig therefor to solve the above technical problems.

[0004] A terminal for quickly fixing a wire includes a terminal housing and a plurality of metal sheets provided on the terminal housing. The terminal housing includes a body, a plurality of receiving grooves provided on the body, and a plurality of through holes provided on the body. The plurality of receiving grooves are arranged side by side on one side of the body, one end of the receiving groove communicates with the side wall of the body, and the other end communicates with the through hole. The metal sheet includes a base provided in the receiving groove, a contact piece provided at one end of the base, two holding pieces provided at the other end of the base, and two wire stripping assemblies provided on the base. The contact piece is provided at one end of the base close to the through hole, the holding pieces are located on both sides of the base at the end far from the through hole, one end of the two holding pieces is connected to the base, and the other end bends towards each other. The wire stripping assemblies are located between the contact piece and the holding pieces, and each wire stripping assembly includes two wire stripping pieces arranged at intervals, one end of the two wire stripping pieces is vertically provided on the base, and the other end bends in a direction away from each other.

[0005] Further, the terminal housing includes a plurality of positioning grooves provided on the body, and a positioning block provided on the body. The arrangement direction of the positioning grooves is parallel to the arrangement direction of the plurality of receiving grooves, and each receiving groove corresponds to one positioning groove.

[0006] Further, the metal sheet is integrally formed by bending and shearing a sheet material.

[0007] Further, the contact piece has an L-shaped structure and one end is vertically provided on the base.

[0008] A crimping fixture for quickly fixing a wire. The crimping fixture for quickly fixing a wire is used to press a wire into the terminal of the quickly fixing wire. The crimping fixture for quickly fixing a wire includes a base, a downward pressing mechanism provided on the base, and a crimping mechanism provided on the downward pressing mechanism. One end of the base is provided with a notch, and the terminal of the quickly fixing wire is arranged on the notch. The downward pressing mechanism drives the crimping mechanism to press down or move up. The crimping mechanism includes a pressing head block provided on the downward pressing mechanism, a clamping block provided on the pressing head block, a first pressing block provided on the pressing head block, and a second pressing block provided on the pressing head block. One end of the clamping block facing the terminal of the quickly fixing wire has an arc-shaped structure that is recessed inward, and the clamping block corresponds to the position of the clamping piece. When the crimping mechanism presses down, the clamping block will press down the wire and insert between the clamping piece and the receiving groove, so that after the wire is pressed in, the two clamping pieces will bend inward along the arc-shaped structure to clamp the wire tightly. The first pressing block is located between the clamping block and the second pressing block and is spaced apart from each other. When the crimping mechanism presses down, the first pressing block and the second pressing block will press the wire into the wire stripping assembly and strip the outer insulating layer under the action of the wire stripping assembly.

[0009] Further, the crimping fixture for quickly fixing a wire further includes a positioning mechanism provided on the base. The positioning mechanism includes a positioning block provided on the base, a flange extending from the positioning block, and a ball plunger provided on the positioning block.

[0010] Further, one end of the positioning block is arranged on the side wall of the notch, and the ball plunger is inserted at the other end. The flange is located on the end face of the positioning block facing the notch and is spaced from the side wall of the notch, so that the flange, the positioning block, and the side wall of the notch form a groove structure. The positioning block is slidably arranged in the groove structure. The extending direction of the groove structure is parallel to the arrangement direction of the receiving grooves, and the ball plunger abuts against the positioning groove.

[0011] Further, the pressing mechanism includes a housing disposed on the base, a rotating handle disposed on the housing, a rotating shaft rotatably connecting the housing and the rotating handle, a pressing rod assembly inserted into the housing, and a reset rod disposed on the housing.

[0012] Further, the arc-shaped groove is located between the rotating shaft and the reset rod, and the opening direction of the arc-shaped groove faces the rotating shaft.

[0013] Further, the pressing rod assembly includes a pressing rod vertically inserted into the housing, a Slide bar inserted into the pressing rod, and a pin shaft inserted into the pressing rod. The pressing rod penetrates the housing. The central axis of the sliding rod is perpendicular to the central axis of the pressing rod. Both ends of the sliding rod slide in the arc-shaped groove and are inserted into the rotating handle. The pin shaft is located at one end of the pressing rod close to the notch.

[0014] Compared with the prior art, the metal sheet of the terminal for quickly fixing a wire provided by the present invention includes a base, a contact piece, a clamping piece, and a wire stripping assembly. The clamping pieces are located on both sides of the base away from one end of the through hole. One end of the two clamping pieces is connected to the base, and the other end is bent toward each other. The wire stripping assembly includes two wire stripping pieces arranged at intervals. One end of the two wire stripping pieces is vertically arranged on the base, and the other end is bent in a direction away from each other. One end of the clamping block of the crimping jig for quickly fixing a wire is an arc-shaped structure recessed inward and corresponds to the position of the clamping piece. The first pressing block is located between the clamping block and the second pressing block and is arranged at intervals. When the crimping mechanism presses down, the clamping block will press down the wire and insert it between the clamping piece and the receiving groove. At the same time, since one end of the clamping block is an arc-shaped structure recessed inward, after the wire is pressed in, the two clamping pieces will bend inward along this arc-shaped structure, thereby clamping the wire tightly. And the first pressing block and the second pressing block will press the wire into the wire stripping assembly and strip the outer insulating layer under the action of the wire stripping assembly, thereby realizing automatic wire stripping and directly clamping the wire tightly, improving the efficiency. Description of the Drawings

[0015] Figure 1 It is a schematic structural diagram of a terminal for quickly fixing a wire and its crimping jig provided by the present invention.

[0016] Figure 2 For Figure 1 schematic structural diagram of the terminal for quickly fixing a wire.

[0017] Figure 3 For Figure 2Exploded structure schematic diagram of the terminal for quickly fixing wire

[0018] Figure 4 For Figure 2 Cross-sectional view of the terminal for quickly fixing wire

[0019] Figure 5 For Figure 2 Schematic diagram of the structure of the metal sheet of the terminal for quickly fixing wire

[0020] Figure 6 For Figure 1 Schematic diagram of the structure of the crimping jig for quickly fixing wire

[0021] Figure 7 For Figure 6 Exploded structure schematic diagram of the crimping jig for quickly fixing wire

[0022] Figure 8 For Figure 6 Schematic diagram of the structure of the positioning mechanism of the crimping jig for quickly fixing wire

[0023] Figure 9 For Figure 1 Schematic diagram of the structure of the crimping mechanism of the crimping jig for quickly fixing wire Detailed implementation manners

[0024] The following further elaborates on the specific embodiments of the present invention. It should be understood that the description of the embodiments of the present invention herein is not intended to limit the protection scope of the present invention.

[0025] As Figures 1 to 5 shown, it is a schematic diagram of the structure of the terminal for quickly fixing wire provided by the present invention. The terminal for quickly fixing wire includes a terminal housing 10 and a plurality of metal sheets 20 provided on the terminal housing 10. It can be imagined that the terminal for quickly fixing wire and its crimping jig also include some other functional modules, such as pins and fixing components, etc., which are well-known technologies to those skilled in the art and will not be elaborated herein.

[0026] The terminal housing 10 includes a body 11, a plurality of receiving grooves 12 provided on the body 11, a plurality of through holes 13 provided on the body 11, a plurality of positioning grooves 14 provided on the body 11, and a positioning block 15 provided on the body 11.

[0027] The body 11 is rectangular and made of plastic material, and is used to carry the above-mentioned various functional modules. A plurality of the receiving grooves 12 are arranged side by side on one side of the body 11 and are used to arrange the metal sheets 20. In this embodiment, two rows of the receiving grooves 12 are respectively provided on two opposite end faces of the body 11, so as to increase the number of wire connections. One end of the receiving groove 12 communicates with the side wall of the body 11, and the other end communicates with the through hole 13, so that the wire can pass through from the end where the receiving groove 12 communicates with the side wall of the body 11 after being pressed in. The through hole 13 communicates with the receiving groove 12, so that the guide pin can penetrate through the through hole 13 to contact the metal sheet 20 in the receiving groove 12. The arrangement direction of the positioning grooves 14 is parallel to the arrangement direction of the plurality of receiving grooves 12, and each receiving groove 12 corresponds to one positioning groove 14. The positioning groove 14 is used to cooperate with the crimping fixture for quickly fixing the wire, so as to ensure the correct position of the metal sheet 20 in the receiving groove 12 and the fixture, so as to ensure the accuracy of crimping. The positioning block 15 is located on the same end face of the positioning groove 14, and the positioning block 15 is used to cooperate with the fixture to define the sliding direction of the terminal housing 10, so as to ensure that the terminal housing 10 slides along the arrangement direction of the receiving grooves 12 and prevent it from sliding out of the fixture.

[0028] The metal sheet 20 is integrally formed by bending and shearing a sheet material. The metal sheet 20 includes a base 21 arranged in the receiving groove 12, a contact piece 22 arranged at one end of the base 21, two holding pieces 23 arranged at the other end of the base 21, and two wire stripping assemblies 24 arranged on the base 21.

[0029] The base 21 serves as the substrate of the metal sheet 20, and its structure should be the prior art and will not be elaborated here. The contact piece 22 has an L-shaped structure, and one end is vertically arranged at one end of the base 21 close to the through hole 13, so that the guide pin contacts the contact piece 22 after passing through the through hole 13.

[0030] The holding pieces 23 are located on both sides of the base 21 at the end far from the through hole 13, and are used to hold the wire tightly by being bent by the fixture after the wire is pressed in. The specific description will be given below in combination with the crimping fixture for quickly fixing the wire. One end of the two holding pieces 23 is connected to the base 21, and the other ends are bent towards each other, so that one end where the two holding pieces 23 are close to each other has a certain guiding effect to facilitate the fixture to bend the holding pieces 23.

[0031] The wire stripping component 24 is located between the contact piece 22 and the clamping piece 23. The wire stripping component 24 includes two wire stripping pieces 241 arranged at intervals. One end of each of the two wire stripping pieces 241 is vertically arranged on the base 21, and the other end is bent in a direction away from each other, so as to have a certain guiding effect when the wire is pressed in. The wire can slide between the two wire stripping pieces 241 and be squeezed by the two wire stripping pieces 241, resulting in the stripping of the insulating layer on the outer layer of the wire, connecting the wire to the wire stripping pieces 241, and then connecting the wire and the pin through the metal piece 20.

[0032] The present invention also provides a pressing fixture for quickly fixing a wire, such as Figures 6 to 9 shown in the structural schematic diagram of the crimping fixture for quickly fixing a wire.

[0033] The crimping fixture for quickly fixing a wire includes a base 30, a downward pressing mechanism 40 arranged on the base 30, a positioning mechanism 50 arranged on the base 30, and a crimping mechanism 60 arranged on the downward pressing mechanism 40. It can be imagined that the crimping fixture for quickly fixing a wire also includes some other functional modules, such as an elastic component, a connecting component, etc., which are well-known technologies to those skilled in the art and will not be elaborated here.

[0034] One end of the base 30 is provided with a notch 31, and the notch 31 is used to accommodate the positioning mechanism 50 and the terminal for quickly fixing a wire. Therefore, the notch 31 is provided with a plurality of grooves for positioning or facilitating the placement of the terminal, which should be prior art and will not be elaborated here. The base 30 is used to carry the above-mentioned various functional modules, that is, the downward pressing mechanism 40 and the positioning mechanism 50. Therefore, the base 30 is provided with various functional structures, such as through holes, springs for rebounding the downward pressing mechanism 40, jigs, etc. to complete the installation and assembly of the above-mentioned functional modules, which can be set according to actual needs and will not be described in detail one by one here.

[0035] The downward pressing mechanism 40 includes a housing 41 arranged on the base 30, a rotating handle 42 arranged on the housing 41, a rotating shaft 43 rotatably connecting the housing 41 and the rotating handle 42, a pressing rod assembly 44 inserted on the housing 41, and a reset rod 45 arranged on the housing 41.

[0036] The housing 41 is arranged on the base 30 by inserting fasteners, and two arc grooves 411 are respectively arranged on both sides of one end of the housing 41 close to the notch 31, and the reset rod 45 is inserted into the end away from the notch 31. The arc groove 411 is located between the rotating shaft 43 and the reset rod 45, and the opening direction of the arc groove 411 faces the rotating shaft 43, so that the extension direction of the arc groove 411 is the same as the rotation direction of the rotating handle 42, so that the pressure rod assembly 44 moves vertically, and the specific description will be described below in conjunction with the pressure rod assembly 44.

[0037] One end of the rotating handle 42 close to the notch 31 is rotatably connected to the housing 41 via the rotating shaft 43 , so that the rotating handle 42 rotates around the rotating point of the rotating shaft 43 .

[0038] The pressure rod assembly 44 includes a pressure rod 441 vertically inserted on the housing 41 , a sliding rod 442 inserted on the pressure rod 441 , and a pin shaft 443 inserted on the pressure rod 441 .

[0039] The pressing rod 441 passes through the housing 41, the central axis of the sliding rod 442 is perpendicular to the central axis of the pressing rod 441, and the two ends of the sliding rod 442 slide in the arc groove 411 and are inserted on the rotating handle 42. When the rotating handle 42 rotates at the rotation point of the rotating shaft 43, it can drive the sliding rod 442 to slide in the arc groove 411, and the sliding rod 442 drives the pressing rod 441 to move vertically up and down, thereby pressing down or raising the crimping mechanism 60. The pin 443 is located at one end of the pressing rod 441 close to the notch 31, and is used to fix the crimping mechanism 60.

[0040] The reset rod 45 passes through the housing 41 and is movably inserted on the base 30. When the rotating handle 42 is pressed down and rotated, the reset rod 45 is also pressed down. When the rotating handle 42 is released, the reset rod 45 resets and presses against the rotating handle 42, pushing the rotating handle 42 back to its original position, so that the crimping mechanism 60 rises.

[0041] The positioning mechanism 50 includes a positioning block 51 disposed on the base 30 , a flange 52 extending from the positioning block 51 , and a ball plunger 53 disposed on the positioning block 51 .

[0042] One end of the positioning block 51 is disposed on the side wall of the notch 31, and the ball plunger 53 is inserted into the other end. The flange 52 is located on the end face of the positioning block 51 facing the notch 31 and is spaced from the side wall of the notch 31, so that a groove-shaped structure is formed by the flange 52, the positioning block 51, and the side wall of the notch 31. The positioning block 15 is slidably disposed in the groove-shaped structure. The extending direction of the groove-shaped structure is parallel to the arrangement direction of the receiving grooves 12, so that the sliding direction of the terminal for quickly fixing the wire is fixed, and the receiving groove 12 can be switched by sliding along the groove-shaped structure to crimp the metal sheet 20 in different receiving grooves 12. The ball plunger 53 abuts against the positioning groove 14 to fix the terminal for quickly fixing the wire so that it does not move during crimping.

[0043] The crimping mechanism 60 includes a crimping head block 61 disposed on the pressing rod 441, a clamping block 62 disposed on the crimping head block 61, a first pressing block 63 disposed on the crimping head block 61, and a second pressing block 64 disposed on the crimping head block 61.

[0044] One end of the clamping block 62 facing the terminal for quickly fixing the wire is in an arc-shaped structure recessed inward. The clamping block 62 corresponds to the position of the clamping piece 23. When the crimping mechanism 60 is pressed down, the clamping block 62 will press down the wire and insert between the clamping piece 23 and the receiving groove 12. At the same time, since one end of the clamping block 62 is an arc-shaped structure recessed inward, the two clamping pieces 23 will bend inward along the arc-shaped structure after the wire is pressed in, so as to clamp the wire tightly.

[0045] The first pressing block 63 is located between the clamping block 62 and the second pressing block 64 and is spaced from each other. The spaced spaces are respectively used to avoid the two wire stripping assemblies 24 to prevent hitting the wire stripping assemblies 24 when pressing down. When the crimping mechanism 60 is pressed down, the first pressing block 63 and the second pressing block 64 will press down the wire, press the wire into the wire stripping assembly 24 and strip the outer insulating layer under the action of the wire stripping assembly 24, so as to realize automatic wire stripping.

[0046] Compared with the prior art, the metal sheet 20 of the terminal for quickly fixing a wire in the present invention includes a base 21, a contact piece 22, a clamping piece 23, and a wire stripping assembly 24. The clamping piece 23 is located on both sides of the end of the base 21 away from the through hole 13. One end of the two clamping pieces 23 is connected to the base 21, and the other ends are bent towards each other. The wire stripping assembly 24 includes two wire stripping pieces 241 arranged at intervals. One end of the two wire stripping pieces 241 is vertically arranged on the base 21, and the other ends are bent in directions away from each other. One end of the clamping block 62 of the crimping jig for quickly fixing a wire is an arc-shaped structure recessed inward and corresponds to the position of the clamping piece 23. The first pressing block 63 is located between the clamping block 62 and the second pressing block 64 and is arranged at intervals. When the crimping mechanism 60 presses down, the clamping block 62 will press down the wire and insert between the clamping piece 23 and the receiving groove 12. At the same time, since one end of the clamping block 62 is an arc-shaped structure recessed inward, after the wire is pressed in, the two clamping pieces 23 will bend inwardly against the arc-shaped structure, thereby clamping the wire tightly. And the first pressing block 63 and the second pressing block 64 will press the wire into the wire stripping assembly 24 and strip the outer insulating layer under the action of the wire stripping assembly 24, thereby realizing automatic wire stripping and directly clamping the wire tightly, improving efficiency.

[0047] The above are only the preferred embodiments of the present invention and are not used to limit the protection scope of the present invention. Any modifications, equivalent replacements or improvements within the spirit of the present invention are all covered within the scope of the claims of the present invention.

Claims

1. A terminal for quickly fixing a wire, characterized in that: The terminal for quickly fixing a wire includes a terminal housing and a plurality of metal sheets arranged on the terminal housing. The terminal housing includes a body, a plurality of receiving grooves arranged on the body, and a plurality of through holes arranged on the body. The plurality of receiving grooves are arranged side by side on one side of the body. One end of the receiving groove communicates with the side wall of the body, and the other end communicates with the through hole. The metal sheet includes a base arranged in the receiving groove, a contact piece arranged at one end of the base, two clamping pieces arranged at the other end of the base, and two wire stripping components arranged on the base. The contact piece is arranged at one end of the base close to the through hole. The clamping pieces are located on both sides of the base away from the through hole. One end of the two clamping pieces is connected to the base, and the other end is bent towards each other. The wire stripping components are located between the contact piece and the clamping pieces. The wire stripping components include two wire stripping pieces arranged at intervals. One end of the two wire stripping pieces is vertically arranged on the base, and the other end is bent in a direction away from each other.

2. The terminal for quickly fixing a wire according to claim 1, characterized in that: The terminal housing includes a plurality of positioning grooves arranged on the body and a positioning block arranged on the body. The arrangement direction of the positioning grooves is parallel to the arrangement direction of the plurality of receiving grooves, and each receiving groove corresponds to a positioning groove.

3. The terminal for quickly fixing a wire according to claim 1, characterized in that: The metal sheet is integrally formed by bending and shearing a sheet material.

4. The terminal for quickly fixing a wire according to claim 1, characterized in that: The contact piece has an L-shaped structure and one end is vertically arranged on the base.

5. A crimping jig for quickly fixing a wire, the crimping jig for quickly fixing a wire is used to press a wire into the terminal for quickly fixing a wire according to any one of claims 1 to 4, characterized in that: The crimping fixture for quickly fixing a wire includes a base, a downward pressing mechanism disposed on the base, and a crimping mechanism disposed on the downward pressing mechanism. One end of the base is provided with a notch, and the terminal for quickly fixing the wire is disposed on the notch. The downward pressing mechanism drives the crimping mechanism to press down or move upward. The crimping mechanism includes a pressing head block disposed on the downward pressing mechanism, a clamping block disposed on the pressing head block, a first pressing block disposed on the pressing head block, and a second pressing block disposed on the pressing head block. One end of the clamping block facing the terminal of the wire for quickly fixing is in an arc-shaped structure that is recessed inward, and the clamping block corresponds to the position of the clamping piece. When the crimping mechanism presses down, the clamping block will press down the wire and insert between the clamping piece and the receiving groove, so that after the wire is pressed in, the two clamping pieces will bend inward along the arc-shaped structure to clamp the wire. The first pressing block is located between the clamping block and the second pressing block and is spaced apart from each other. When the crimping mechanism presses down, the first pressing block and the second pressing block will press the wire into the wire stripping assembly and strip the outer insulating layer under the action of the wire stripping assembly.

6. The crimping fixture for quickly fixing a wire according to claim 5, characterized in that: the crimping fixture for quickly fixing a wire further includes a positioning mechanism disposed on the base. The positioning mechanism includes a positioning block disposed on the base, a flange extending from the positioning block, and a ball plunger disposed on the positioning block.

7. The crimping fixture for quickly fixing a wire according to claim 6, characterized in that: one end of the positioning block is disposed on the side wall of the notch, and the ball plunger is inserted at the other end. The flange is located on the end face of the positioning block facing the notch and is spaced apart from the side wall of the notch, so that the flange, the positioning block, and the side wall of the notch form a groove-shaped structure. The positioning block is slidably disposed in the groove-shaped structure, and the extending direction of the groove-shaped structure is parallel to the arrangement direction of the receiving grooves. The ball plunger abuts against the positioning groove.

8. The crimping fixture for quickly fixing a wire according to claim 5, characterized in that: the downward pressing mechanism includes a housing disposed on the base, a rotating handle disposed on the housing, a rotating shaft rotatably connecting the housing and the rotating handle, a pressing rod assembly inserted into the housing, and a reset rod disposed on the housing.

9. The crimping fixture for quickly fixing a wire according to claim 8, characterized in that: two arc-shaped grooves are respectively provided on both sides of one end of the housing close to the notch. The arc-shaped grooves are located between the rotating shaft and the reset rod, and the opening direction of the arc-shaped grooves faces the rotating shaft.

10. The crimping fixture for quickly fixing a wire according to claim 9, characterized in that: The pressure rod assembly includes a pressure rod vertically inserted on the housing, a slide rod inserted on the pressure rod, and a pin shaft inserted on the pressure rod. The pressure rod penetrates through the housing. The central axis of the slide rod is perpendicular to the central axis of the pressure rod. Both ends of the slide rod slide in the arc-shaped grooves respectively and are inserted on the rotating handle. The pin shaft is located at one end of the pressure rod close to the notch.

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