A wire crimping tool assembly, a wire crimping tool using the assembly, and a method of using the same

Abstract

A wire crimping pliers assembly, a wire crimping pliers using the assembly and a method of using the same. A wire crimping pliers assembly comprises a pressing rod for pressing a cold-pressed bare terminal, a pressing block acting on the pressing rod, an elastic member and a first fixing rod for cooperating with the pressing block to provide pressure to the pressing rod, the elastic member is placed between the rod end of the first fixing rod and the pressing block, the first fixing rod passes through the elastic member and the pressing block and is fixed on the wire crimping pliers, a push rod for providing reverse pressure, and a second fixing rod for fixing the pressing block; holes are opened at corresponding places of the wire crimping pliers so that the wire crimping pliers assembly can be installed; the handle is closed to allow the pressing rod to press one of the two sides of the weld of the cold-pressed bare terminal tube portion and collapse it, and after reaching the specified position, the push rod lifts the pressing block, after which the assembly loses its effect on the cold-pressed bare terminal, and the side of the terminal that is not pressed is pressed against the collapsed side to form a weld overlap area, thereby achieving a firm and beautiful effect.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical tools, and in particular to a wire crimping tool assembly, a wire crimping tool using the assembly and a method of using the same. Background Art

[0002] In the process of automated wiring, cold-pressed bare terminals are indispensable parts as connectors, which require crimping pliers. At present, no matter how the traditional crimping pliers are adjusted, gaps are easily formed at the welds of the cold-pressed bare terminal tubes after being pressed, because the two sides of the welds of the cold-pressed bare terminal tubes are at the same height, making the wiring neither firm nor beautiful. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a wire crimping pliers assembly, a wire crimping pliers using the assembly and a method of using the same, which can allow a height difference to appear on both sides of the weld of the cold-pressed bare terminal tube part, thereby forming an overlapping area at the weld of the cold-pressed bare terminal tube part, making the wiring both firm and beautiful.

[0004] To solve the above technical problems, the present invention provides a wire crimping pliers assembly, which includes a pressing rod for pressing a cold-pressed bare terminal, the cross-sectional area of ​​the rod end of the pressing rod being larger than the cross-sectional area of ​​the rod wall; a pressing block acting on the pressing rod, the pressing block being provided with a first through hole and a second through hole; an elastic member and a first fixed rod that cooperate with the pressing block to provide pressure to the pressing rod, the cross-sectional area of ​​the rod end of the first fixed rod being larger than the cross-sectional area of ​​the rod wall, the elastic member being placed between the rod end of the first fixed rod and the pressing block, the first fixed rod passing through the elastic member and the first through hole; a push rod that provides reverse pressure; a second fixed rod that fixes the pressing block, the cross-sectional area of ​​the rod end of the second fixed rod being larger than the cross-sectional area of ​​the rod wall, and the second fixed rod passing through the second through hole.

[0005] As a further improvement of the present invention, the elastic member is a mold spring.

[0006] As a further improvement of the present invention, the first fixing rod is a screw rod.

[0007] A wire crimping pliers comprises a handle, a left part of a pliers head, a right part of a pliers head, a pliers head connecting piece, and a wire crimping pliers assembly; a pliers convex is provided on the inner side of the left part of the pliers head, and a pliers concave is provided on the inner side of the right part of the pliers head; a third through hole, a fourth through hole, a first fixing point, and a second fixing point are also provided on the right part of the pliers head; the third through hole is opened from the pliers concave in the opposite direction of the pliers convex, the third through hole is matched with the pressure rod, and the length of the pressure rod is longer than the depth of the third through hole; the fourth through hole is arranged in the direction from the third through hole toward the pliers head connecting piece, the fourth through hole is matched with the push rod, and the length of the push rod is longer than the depth of the fourth through hole; the first fixing point is arranged between the third through hole and the fourth through hole, the first fixing rod passes through the elastic member and the first through hole and is fixed on the first fixing point; the second fixing point is arranged on the extension line of the third through hole toward the fourth through hole, the second fixing rod passes through the second through hole and is fixed on the second fixing point, the second fixing rod plays the role of fixing the pressing block, and allows the pressing block to have a certain range of movement.

[0008] As a further improvement of the present invention, the third through hole, the fourth through hole, the first fixing point, and the second fixing point are all related to the outer center line of the right part of the pliers head.

[0009] A method for using a wire crimping pliers comprises the following steps:

[0010] 1) Align one of the two sides of the weld of the cold pressed bare terminal tube with the pressing rod passing through the third through hole;

[0011] 2) Start closing the handle, the pressure of the pressure block is transmitted to the cold pressing terminal by the pressure rod, so that the pressed side of the weld collapses;

[0012] 3) Close the handle further, one end of the push rod touches the inner wall of the left part of the clamp head, and the other end of the push rod lifts the pressing block, so that the pressing block loses the pressure on the pressing rod, and the pressing rod also loses the pressure on the cold-pressed bare terminal;

[0013] 4) Close the handles further, the cold pressed bare terminal is subjected to the inward pressure of the clamp recess, and the unpressed side of the weld is pressed toward the collapsed side to form an overlapping part, thereby achieving the benefits of firmness and beauty. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention is further described in detail below in conjunction with the accompanying drawings:

[0015] Attached Figure 1 This is a schematic diagram of the wire crimping pliers of the present invention before being assembled;

[0016] Attached Figure 2 This is a schematic diagram of the wire crimping pliers of the present invention after being assembled;

[0017] Attached Figure 3A schematic diagram of the pressing block of the wire crimping tool assembly of the present invention;

[0018] Attached Figure 4 This is a schematic diagram of the cold pressed bare terminal.

[0019] In the figure: handle 1, left part of pliers head 2, pliers protrusion 21, right part of pliers head 3, pliers recess 31, third through hole 32, fourth through hole 33, first fixing point 34, second fixing point 35, pliers head connecting piece 23, pressure rod 36, push rod 37, pressure block 4, first through hole 44, second through hole 45, elastic member 54, first fixing rod 64, second fixing rod 55, cold pressed bare terminal 7, cold pressed bare terminal tube weld 71. DETAILED DESCRIPTION

[0020] The technical solution of the present invention is further described in detail below in conjunction with specific embodiments.

[0021] like Figures 1 to 4 As shown, a wire crimping pliers assembly includes a pressing rod 36 for pressing a cold-pressed bare terminal, wherein the cross-sectional area of ​​the rod end of the pressing rod 36 is larger than the cross-sectional area of ​​the rod wall; a pressing block 4 acting on the pressing rod 36, wherein the pressing block 4 is provided with a first through hole 44 and a second through hole 45; an elastic member 54 and a first fixing rod 64 for cooperating with the pressing block 4 to provide pressure to the pressing rod 36, wherein the cross-sectional area of ​​the rod end of the first fixing rod 64 is larger than the cross-sectional area of ​​the rod wall, the elastic member 54 is placed between the rod end of the first fixing rod 64 and the pressing block 4, and the first fixing rod 64 passes through the elastic member 54 and the first through hole 44; a top rod 37 for providing reverse pressure; a second fixing rod 55 for fixing the pressing block 4, wherein the cross-sectional area of ​​the rod end of the second fixing rod 55 is larger than the cross-sectional area of ​​the rod wall, and the second fixing rod 55 passes through the second through hole 54.

[0022] The elastic member 54 is a mold spring, the first fixing rod 64 and the second fixing rod 55 are screw rods, and the length of the push rod 37 is restricted by the length of the pressure rod 36 .

[0023] A wire crimping pliers, comprising a handle 1, a left pliers head 2, a right pliers head 3, a pliers head connecting piece 23, and a wire crimping pliers assembly; the inner side of the left pliers head 2 is provided with a pliers protrusion 21, and the inner side of the right pliers head 3 is provided with a pliers recess 31; the right pliers head 3 is also provided with a third through hole 32, a fourth through hole 33, a first fixing point 34, and a second fixing point 35; the third through hole 32 is opened from the pliers recess 31 in the opposite direction of the pliers protrusion 21, the third through hole 32 is adapted to the pressing rod 36, and the length of the pressing rod 36 is longer than the depth of the third through hole 32; the fourth through hole 33 is arranged in the direction of the third through hole 32 toward the pliers head connecting piece 23, and the fourth through hole 33 and the top The first fixing point 34 is arranged between the third through hole 32 and the fourth through hole 33, and the first fixing point 34 and the second fixing point 35 are screw holes; the first fixing rod 64 passes through the elastic member 54 and the first through hole 44 and is fixed on the first fixing point 34; the second fixing point 35 is arranged on the extension line of the third through hole 32 toward the fourth through hole 33, and the second fixing rod 55 passes through the second through hole 45 and is fixed on the second fixing point 35, and the second fixing rod 55 plays the role of fixing the pressing block 4 and allows the pressing block 4 to have a certain range of motion.

[0024] A method for using a wire crimping pliers comprises the following steps:

[0025] 1) Align one side of the two sides of the weld 71 of the cold pressed bare terminal tube with the pressing rod 36 passing through the third through hole 32;

[0026] 2) The handle 1 starts to be closed, and the pressure of the pressing block 4 is transmitted to the cold-pressed bare terminal 7 by the pressing rod 36, so that the weld 71 is collapsed on the pressed side;

[0027] 3) The handle 1 is further closed, and one end of the push rod 37 touches the inner wall of the left part 2 of the clamp head, and the other end of the push rod 37 pushes up the pressing block 4, so that the pressing block 4 loses the pressure on the pressing rod 36, and the pressing rod 36 also loses the pressure on the cold pressed bare terminal 7;

[0028] 4) Further closing the handle 1, the cold pressed bare terminal 7 is subjected to the inward pressure of the clamp recess 31, and the unpressed side of the weld 71 is pressed toward the collapsed side to form an overlapping part, thereby achieving the benefits of firmness and aesthetics.

[0029] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art. The general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A wire crimping tool assembly, characterized in that: It includes a pressing rod for pressing a cold-pressed bare terminal, wherein the cross-sectional area of ​​the rod end of the pressing rod is larger than the cross-sectional area of ​​the rod wall; a pressing block acting on the pressing rod, wherein the pressing block is provided with a first through hole and a second through hole; an elastic member and a first fixing rod for cooperating with the pressing block to provide pressure to the pressing rod, wherein the cross-sectional area of ​​the rod end of the first fixing rod is larger than the cross-sectional area of ​​the rod wall, the elastic member is placed between the rod end of the first fixing rod and the pressing block, and the first fixing rod passes through the elastic member and the first through hole; a top rod for providing reverse pressure; and a second fixing rod for fixing the pressing block, wherein the cross-sectional area of ​​the rod end of the second fixing rod is larger than the cross-sectional area of ​​the rod wall, and the second fixing rod passes through the second through hole.

2. The crimping tool assembly according to claim 1, characterized in that: The elastic member is a mold spring.

3. The wire crimping tool assembly according to claim 1, characterized in that: The first fixing rod is a screw rod.

4. A wire crimping tool using the wire crimping tool assembly according to claim 1, characterized in that: It includes a handle, a left part of a pliers head, a right part of a pliers head, a pliers head connecting piece, and a wire crimping pliers assembly; a pliers convexity is provided on the inner side of the left part of the pliers head, and a pliers concave is provided on the inner side of the right part of the pliers head; the right part of the pliers head is also provided with a third through hole, a fourth through hole, a first fixed point, and a second fixed point; the third through hole is opened from the pliers concave toward the opposite direction of the pliers convexity, the third through hole and the pressure rod are matched, and the length of the pressure rod is longer than the depth of the third through hole; the fourth through hole is arranged in the direction from the third through hole toward the pliers head connecting piece, the fourth through hole and the push rod are matched, and the length of the push rod is longer than the depth of the fourth through hole; the first fixed point is arranged between the third through hole and the fourth through hole, the first fixing rod passes through the elastic member and the first through hole and is fixed to the first fixed point; the second fixed point is arranged on the extension line of the third through hole toward the fourth through hole, and the second fixing rod passes through the second through hole and is fixed to the second fixed point.

5. The crimping pliers according to claim 4, characterized in that: The third through hole, the fourth through hole, the first fixing point, and the second fixing point are all related to the outer center line of the right part of the pliers head.

6. The method for using a wire crimping tool according to claim 4, characterized in that: The following steps are involved: 1) Align one of the two sides of the weld of the cold pressed bare terminal tube with the pressing rod passing through the third through hole; 2) Start closing the handle, the pressure of the pressure block is transmitted to the cold pressing terminal by the pressure rod, so that the pressed side of the weld collapses; 3) Close the handle further, one end of the push rod touches the inner wall of the left part of the clamp head, and the other end of the push rod lifts the pressing block, so that the pressing block loses the pressure on the pressing rod, and the pressing rod also loses the pressure on the cold-pressed bare terminal; 4) Close the handles further, the cold pressed bare terminal is subjected to the inward pressure of the clamp recess, and the unpressed side of the weld is pressed toward the collapsed side to form an overlapping part.

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