CN216529779U

CN216529779U - Four dabber crimping instruments that many gears were adjusted

Info

Publication number: CN216529779U
Application number: CN202122922336.1U
Authority: CN
Inventors: 林颜
Original assignee: Zhejiang Jingrui Instrument Equipment Co ltd
Current assignee: Zhejiang Jingrui Instrument Equipment Co ltd
Priority date: 2021-11-25
Filing date: 2021-11-25
Publication date: 2022-05-13
Anticipated expiration: 2031-11-25

Abstract

The utility model discloses a four-core shaft press-connection tool with multi-gear adjustment, wherein a first handle is formed by two side face plates; the front end of the second handle is provided with a movable hole, a clamp shaft is rotatably arranged in the movable hole, the front end of the second handle is arranged at the front ends of the two side panels, and the second handle can rotate around the clamp shaft; the gear adjusting assembly is installed in the first handle and comprises an installation seat, a cam piece, a rotating shaft and a limiting piece, the installation seat is fixed on the first handle, the rotating shaft is rotatably installed on the installation seat, the cam piece is fixed on the rotating shaft, a plurality of step surfaces are arranged on the outer contour of the cam piece, the front end of the limiting piece is fixed on the clamp shaft, the rear end of the limiting piece abuts against the step surfaces of the cam piece, the rotating shaft drives the cam piece to rotate, and the limiting piece abuts against the step surfaces of the cam piece at different heights. The utility model has simple structure, controls the rotation of the clamp shaft through the step surfaces with different heights on the cam plate, changes the initial position of the clamp tooth in compression joint and changes the compression joint depth of the clamp tooth.

Description

Four dabber crimping instruments that many gears were adjusted

Technical Field

The utility model relates to the technical field of crimping tools, in particular to a four-mandrel crimping tool with multiple adjustable gears.

Background

The electrical connector consists of a fixed end electrical connector, i.e. a female contact (socket for short), and a free end electrical connector, i.e. a male contact (plug for short). The socket is fixed on the electric part through a square (round) plate (a welding mode is adopted individually), the plug is generally connected with a conducting wire, and the connection of the plug and the socket is realized through a connecting nut. The plug terminal and the lead are fixed by a crimping tool, the round-tube-shaped terminal is placed in a pressing block of the crimping tool, then the lead is placed in the terminal, and the pressing block extrudes a concave point inwards from the round tube of the terminal, so that the plug terminal and the lead are connected together. The terminal of different specifications, the degree of depth that produces the concave point during crimping requires differently, so be equipped with on the manual crimping tool and keep off a position regulation structure for adjust the crimping degree of depth of briquetting, but present fender position regulation structure is more complicated, keeps off the position and adjusts harder.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides a multi-gear-adjustment four-mandrel crimping tool which is simple in structure, can quickly adjust the manual crimping depth and meets the crimping requirements of different terminals.

Therefore, the technical scheme of the utility model is as follows: a four-mandrel press-connection tool with multi-gear adjustment comprises a first handle, a second handle and a gear adjustment assembly, wherein two sides of the first handle are formed by panels, and the front ends of the panels are provided with circular through holes; the front end of the second handle is provided with a movable hole, a clamp shaft is rotatably arranged in the movable hole, the front end of the second handle is arranged at the circular through hole of the panel, the clamp shaft is opposite to the circular through hole, and the second handle can rotate around the clamp shaft; the gear adjusting assembly is mounted in the first handle and comprises a mounting seat, a cam piece, a rotating shaft and a limiting piece, the mounting seat is fixed between two side face plates of the first handle, the rotating shaft is rotatably mounted on the mounting seat, the cam piece is fixed on the rotating shaft, a plurality of step faces are arranged on the outer contour of the cam piece, the front end of the limiting piece is fixed on the clamp shaft, the rear end of the limiting piece abuts against one of the step faces of the cam piece, the rotating shaft drives the cam piece to rotate, and the limiting piece abuts against the step faces of the cam piece at different heights to drive the clamp shaft to rotate.

When the second handle is pressed down, the mounting hole at the front end of the second handle and the front end of the clamp shaft rotate relatively, so that the clamp teeth in the clamp shaft start to press the terminal. Since the angle of rotation of the second handle is the same every time, and the angle of relative rotation between the movable hole and the clamp shaft is also the same, in order to change the crimping depth, the starting positions of the movable hole and the clamp shaft need to be changed, for example, the end of the original clamp tooth is abutted to the starting position of the crimping track surface, at this time, the clamp tooth is farthest away from the axis, and then the movable hole and the clamp shaft rotate by m degrees during crimping. If before crimping, the clamp shaft rotates n degrees first, so that the clamp teeth are close to the axis before crimping, then the clamp shaft rotates m degrees during crimping, compared with the starting position of the crimping track surface, the clamp shaft rotates (m + n) degrees, and as the distances from all points on the crimping track surface to the circle center are sequentially reduced, the moving strokes of the clamp teeth to the center are different, and the depths of concave points on the terminal are different. And spacing piece rear end supports directly over the cam piece, rotates as the cam piece, and the step face height directly over the cam piece can change to make spacing piece drive the pincers axle and take place to rotate, the initial position of pincers tooth changes, thereby realizes the function of many gears regulation crimping degree of depth.

Preferably, the handle control device further comprises a second handle control assembly, the second handle control assembly comprises a control block, a rack shaft, a pawl and a connecting shaft, the control block is hollow, the lower end of the control block is mounted on the mounting seat through the connecting shaft, the control block is rotatably connected with the connecting shaft, and the pawl is rotatably mounted at the upper end of the control block through a pin shaft; one end of the rack shaft is rotatably installed on the second handle, the other end of the rack shaft extends into the control block, and a toothed structure is arranged on one side, facing the pawl, of the rack shaft and matched with the pawl. When the second handle rotates around the clamp shaft, the rack shaft on the second handle and the pawl can move relatively to generate a click sound, and the sound stops to indicate that the second handle is pressed in place.

Preferably, the gear adjusting assembly further comprises a dial, a protruding knob is arranged in the middle of the dial, the rotating shaft penetrates through the panel and is fixedly connected with the knob, gear scales are arranged on the dial and are attached to the panel, a plurality of notches are formed in the dial, a positioning pin is fixed on the panel, and the positioning pin and the notches work in a matched mode; the dial can reciprocate relatively to the pivot, and drives the pivot rotation, and the pivot top is equipped with the bent needle spring. The dial is limited by the positioning pin on the panel under the normal state, so that the unstable compression joint depth is prevented in the use process; when the crimping depth needs to be changed, the dial is slightly pulled up, so that the notch on the dial is separated from the positioning pin, then the rotating shaft is driven to rotate, the dial is put down after the rotating shaft rotates to the position, and the positioning pin is clamped into the notch at the proper position of the dial; the curved needle spring can prevent the dial from being separated from the rotating shaft.

Preferably, a torsion spring nut is mounted on the first handle, a torsion spring is mounted on the torsion spring nut, one end of the torsion spring is fixed on the mounting seat, the other end of the torsion spring is mounted at the rear end of the limiting sheet, and the rear end of the limiting sheet is tightly abutted to one step surface of the cam sheet. The torsional spring nut can ensure that the rear end of the limiting piece is always tightly attached to the cam piece, so that the limiting piece is conveniently attached to step surfaces with different heights when the cam piece rotates, and the clamp shaft is driven to rotate.

Preferably, the axle center of the clamp shaft is provided with a crimping hole, the clamp shaft is provided with four mounting holes which are arranged in a cross shape, the center where the mounting holes intersect is the crimping hole, each mounting hole is internally provided with a clamp tooth, the front end of each clamp tooth extends into the crimping hole of the clamp shaft, and the rear end of each clamp tooth abuts against the movable hole of the second handle.

Preferably, the edge of the movable hole of the second handle is uniformly divided into four crimping track surfaces, the distance between each point on each crimping track surface and the center of a circle is different, the rear end of each forceps tooth abuts against the crimping track surface, when the rear end of each forceps tooth and the crimping track surface move relatively, each forceps tooth moves in the mounting hole of the forceps shaft under the action of the crimping track surface, and the front end of each forceps tooth moves oppositely in the crimping hole. The crimping track surface is provided with a starting position, the starting position is farthest away from the circle center, then the crimping track surface slowly inclines inwards, and the distance from each point to the circle center is gradually reduced.

Preferably, the first spring is sleeved on the forceps teeth, one end of the first spring abuts against the inner wall of the mounting hole, the other end of the first spring abuts against the tail end of the forceps teeth, and the tail end of the forceps teeth is tightly attached to the crimping track surface of the second handle of the forceps.

The front end of each tong tooth is a crimping part, the rear end of each tong tooth abuts against the crimping track surface of the second handle, and the distances between each point on the crimping track surface of the second handle and the circle center are different, so that when the second handle rotates, the positions of the tong teeth, which are in contact with the crimping track surface, change, and therefore the four tong teeth synchronously move towards the center, and the crimping part at the front end of each tong tooth completes crimping work on a terminal.

Compared with the prior art, the utility model has the beneficial effects that: the structure is simple, the rotation of the clamp shaft is controlled through the step surfaces with different heights on the cam plate, the relative position of the clamp shaft and the second handle mounting hole is changed, the initial position of clamp tooth pressure welding is changed, and the pressure welding depth of the clamp tooth is finally changed; different step faces on the cam plate correspond to different crimping depths, according to the use requirement, different step face quantities and step face thicknesses can be set on the cam plate, so that the number of the gear positions and the crimping depth corresponding to each gear can be adjusted by adjusting the crimping depth of the manual crimping tool, the manual crimping tool is suitable for crimping of terminals of different specifications, for example, the depth range of the fine small-caliber terminal required to be crimped is completely different from the depth range of the large-caliber terminal to be crimped, the thickness of each step face on the positioning block can be reduced by the small-caliber terminal, the crimping depth difference of different gears is reduced, and the crimping precision is improved.

Drawings

The following detailed description is made with reference to the accompanying drawings and embodiments of the present invention

FIG. 1 is a structural cross-sectional view of a gear adjustment assembly;

FIG. 2 is a schematic structural view of a gear adjustment assembly;

FIG. 3 is a cross-sectional view of the second handle control assembly;

fig. 4 is a schematic structural diagram of the present invention.

Labeled as: the clamp comprises a first handle 1, a positioning pin 11, a second handle 2, a movable hole 21, a pressure contact track surface 22, a starting part 23, a clamp shaft 3, clamp teeth 31, a mounting seat 41, a cam sheet 42, a rotating shaft 43, a limiting sheet 44, a dial 45, a step surface 46, a torsion spring nut 47, a torsion spring 48, a notch 49, a curved needle spring 50, a control block 51, a rack shaft 52, a pawl 53, a connecting shaft 54 and a toothed structure 55.

Detailed Description

In the description of the present invention, it should be noted that, for the terms of orientation, such as "central", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate that the orientation and positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific scope of the present invention.

Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, a definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and in the description of the utility model, "a number" or "a number" means two or more unless explicitly specified otherwise.

See the drawings. The four-mandrel crimping tool in the embodiment is a manual crimping tool and comprises a first handle 1, a second handle 2, a second handle control assembly and a gear adjusting assembly, wherein the first handle 1 is formed by panels on two sides, and the two panels are fixedly connected through a bottom plate to form a hollow structure; the front end of the panel is provided with a round through hole which can be used for placing the clamp shaft 3.

The second handle 2 is a slender structure, the front end of the second handle is a circular structure, a movable hole 21 is arranged in the middle of the circular structure, the movable hole is not circular, the edge of the movable hole is divided into four same crimping track surfaces 22, an initial position 23 is arranged on each crimping track surface, the initial position is farthest away from the circle center, then the crimping track surfaces slowly incline inwards, and the distance from each point to the circle center is gradually reduced.

A clamp shaft 3 is rotatably arranged in the movable hole 21, the front end of a second handle is arranged at the circular through hole of the panel, the clamp shaft is opposite to the circular through hole, and the second handle can rotate around the clamp shaft; the axle center department of pincers axle 3 is equipped with the crimping hole, is equipped with four mounting holes that are the cross and arrange on the pincers axle, and the center that the mounting hole intersects is the crimping hole, is equipped with pincers tooth 31 in every mounting hole, and the pincers tooth front end is sharp-pointed crimping portion, and the cover has first spring on the pincers tooth, and first spring one end is supported on the convex annular face of mounting hole inner wall, and one end is supported at the pincers tooth end for the terminal crimping orbit face 22 with the second handle of pincers tooth 31 closely laminates.

In the initial stage, the forceps teeth 31 are located at or close to the starting position of the crimping track surface 22, the crimping part at the front end of the forceps teeth does not extend into or does not completely extend into the crimping hole, a terminal can be placed in the crimping hole, the movable hole at the front end of the second handle rotates around the forceps shaft along with the pressing of the second handle, and in the rotating process, the tail end of the forceps teeth is pressed by the crimping track surface and moves towards the crimping hole, so that the crimping part at the front end of the forceps teeth extends into the crimping hole and crimps the terminal. The movable hole is provided with four same crimping track surfaces, so that the four forceps teeth synchronously move towards the crimping hole in the center, and the crimping part at the front ends of the forceps teeth crimp the terminal.

Because the second handle rotates the same angle every time, the relative rotation angle between the movable hole and the clamp shaft is the same, so in order to change the crimping depth, the initial position of the movable hole and the clamp shaft is changed, namely the tail end of the original clamp tooth is abutted to the initial position of the crimping track surface, and the clamp tooth is farthest away from the axis and then rotates m degrees during crimping. Before crimping, if the clamp shaft rotates n degrees first, the clamp teeth are close to the axis before crimping, then the clamp shaft rotates m degrees during crimping, compared with the starting position of a crimping track surface, the clamp shaft rotates (m + n) degrees, and the distances from all points on the crimping track surface to the circle center are sequentially reduced, so that the moving strokes of the clamp teeth to the center are different, and the depths of concave points on the terminal are different.

In order to rotate the clamp shaft, a gear adjusting assembly is arranged, the gear adjusting assembly is arranged in the first handle 1 and comprises a mounting seat 41, a cam piece 42, a rotating shaft 43, a limiting piece 44 and a dial 45, the mounting seat 41 is fixed between two side panels of the first handle 1, the rotating shaft 43 is rotatably arranged on the mounting seat 41, the cam piece 42 is fixed on the rotating shaft 43, a plurality of step surfaces 46 are arranged on the outer contour of the cam piece 41, and the distance from each step surface to the center of the rotating shaft is different; the front end of the limiting sheet 44 is annular and fixed on the caliper shaft 3, and the rear end is strip-shaped and is abutted against one of the step surfaces 46 of the cam sheet 42 (when the cam sheet stops rotating, the step surface above the cam sheet); a torsion spring nut 47 is installed on the first handle 1, a torsion spring 48 is installed on the torsion spring nut, one end of the torsion spring 48 is fixed on the installation seat 41, the other end of the torsion spring is installed at the rear end of the limiting sheet 44, and the rear end of the limiting sheet is tightly abutted to the step surface at the top of the cam sheet. The torsional spring nut can ensure that the rear end of the limiting piece is always tightly attached to the cam piece, so that the limiting piece is conveniently attached to step surfaces with different heights when the cam piece rotates, and the clamp shaft is driven to rotate.

A convex knob is arranged in the middle of the dial 45, the rotating shaft penetrates through the panel to be connected and fixed with the knob, gear scales are arranged on the dial and are attached to the panel, a plurality of notches 49 are arranged on the dial 45, a positioning pin 11 is fixed on the panel, and the positioning pin 11 is matched with the notches 49; the dial 45 can move up and down relative to the rotating shaft 43 and drive the rotating shaft to rotate, and a curved needle spring 50 is arranged above the rotating shaft. The dial is limited by the positioning pin on the panel under the normal state, so that the unstable compression joint depth is prevented in the use process; when the crimping depth needs to be changed, the dial is slightly pulled up, so that the notch on the dial is separated from the positioning pin, then the rotating shaft is driven to rotate, the dial is put down after the rotating shaft rotates to the position, and the positioning pin is clamped into the notch at the proper position of the dial; the curved needle spring can prevent the dial from being separated from the rotating shaft.

In order to ensure that the rotation angles of the second handle are consistent each time, a second handle control assembly is further arranged, the second handle control assembly comprises a control block 51, a rack shaft 52, a pawl 53 and a connecting shaft 54, the interior of the control block 51 is hollow, the lower end of the control block 51 is installed on the installation base 41 through the connecting shaft 54, the control block 51 is rotatably connected with the connecting shaft 54, and the pawl 53 is rotatably installed at the upper end of the control block 51 through a pin shaft; one end of the rack shaft 52 is rotatably arranged on the second handle 2, the other end of the rack shaft extends into the control block 51, and one side of the rack shaft, facing the pawl, is provided with a toothed structure 55 and is matched with the pawl. When the second handle rotates around the clamp shaft, the rack shaft on the second handle and the pawl can move relatively to generate a click sound, and the sound stops to indicate that the second handle is pressed in place.

When the second handle is pressed down, the mounting hole at the front end of the second handle and the jaw shaft rotate relatively, so that the jaw teeth in the jaw shaft start to press the terminal, the pressing depth at each time is the same under the condition that the initial relative positions of the mounting hole and the jaw shaft are not changed, after the initial relative positions of the mounting hole and the jaw shaft are changed, the initial positions of the jaw teeth are also changed, and when the second handle is pressed to the bottom, the final positions of the jaw teeth can also be changed, and the pressing depths can also be different. And spacing piece rear end supports directly over the cam piece, rotates as the cam piece, and the step face height directly over the cam piece can change to make spacing piece drive the pincers axle and take place to rotate, the initial position of pincers tooth changes, thereby realizes the function of many gears regulation crimping degree of depth.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the utility model may occur to those skilled in the art without departing from the principle of the utility model, and are considered to be within the scope of the utility model.

Claims

1. The utility model provides a four dabber crimping tools that many gears were adjusted which characterized in that: the gear adjusting mechanism comprises a first handle, a second handle and a gear adjusting component, wherein two sides of the first handle are formed by panels, and the front ends of the panels are provided with circular through holes; the front end of the second handle is provided with a movable hole, a clamp shaft is rotatably arranged in the movable hole, the front end of the second handle is arranged at the circular through hole of the panel, the clamp shaft is opposite to the circular through hole, and the second handle can rotate around the clamp shaft; the gear adjusting assembly is mounted in the first handle and comprises a mounting seat, a cam piece, a rotating shaft and a limiting piece, the mounting seat is fixed between two side face plates of the first handle, the rotating shaft is rotatably mounted on the mounting seat, the cam piece is fixed on the rotating shaft, a plurality of step faces are arranged on the outer contour of the cam piece, the front end of the limiting piece is fixed on the clamp shaft, the rear end of the limiting piece abuts against one of the step faces of the cam piece, the rotating shaft drives the cam piece to rotate, and the limiting piece abuts against the step faces of the cam piece at different heights to drive the clamp shaft to rotate.

2. A multi-gear adjustable four-spindle press-fitting tool as claimed in claim 1, wherein: the handle control assembly comprises a control block, a rack shaft, a pawl and a connecting shaft, the control block is hollow, the lower end of the control block is mounted on the mounting seat through the connecting shaft, the control block is rotatably connected with the connecting shaft, and the pawl is rotatably mounted at the upper end of the control block through a pin shaft; one end of the rack shaft is rotatably installed on the second handle, the other end of the rack shaft extends into the control block, and a toothed structure is arranged on one side, facing the pawl, of the rack shaft and matched with the pawl.

3. A multi-gear adjustable four-spindle press-fitting tool as claimed in claim 1, wherein: the gear adjusting assembly further comprises a dial, a protruding knob is arranged in the middle of the dial, the rotating shaft penetrates through the panel and is fixedly connected with the knob, gear scales are arranged on the dial and are attached to the panel, a plurality of notches are formed in the dial, a positioning pin is fixed on the panel, and the positioning pin and the notches work in a matched mode; the dial can reciprocate relatively to the pivot, and drives the pivot rotation, and the pivot top is equipped with the bent needle spring.

4. A multi-gear adjustable four-spindle press-fitting tool as claimed in claim 1, wherein: a torsion spring nut is mounted on the first handle, a torsion spring is mounted on the torsion spring nut, one end of the torsion spring is fixed on the mounting seat, the other end of the torsion spring is mounted at the rear end of the limiting sheet, and the rear end of the limiting sheet is tightly abutted to one of the step surfaces of the cam sheet.

5. A multi-gear adjustable four-spindle press-fitting tool as claimed in claim 1, wherein: the axle center department of pincers axle is equipped with the crimping hole, is equipped with four mounting holes that are the cross and arrange on the pincers axle, and the center that the mounting hole intersects is the crimping hole, is equipped with the pincers tooth in every mounting hole, and the pincers tooth front end stretches into the crimping hole of pincers axle, and the rear end supports on the movable orifice of second handle.

6. A multi-gear adjustable four-spindle press-fitting tool as claimed in claim 5, wherein: the movable hole edge of the second handle is evenly divided into four crimping track surfaces, the distance between each point on each crimping track surface and the circle center is different, the rear end of each clamp tooth abuts against the crimping track surface, when the rear end of each clamp tooth and the crimping track surface move relatively, the clamp teeth move in the mounting holes of the clamp shafts under the action of the crimping track surfaces, and the front ends of the clamp teeth move oppositely in the crimping holes.

7. A multi-gear adjustable four-spindle press-fitting tool as claimed in claim 5, wherein: the clamp tooth is sleeved with a first spring, one end of the first spring abuts against the inner wall of the mounting hole, the other end of the first spring abuts against the tail end of the clamp tooth, and the tail end of the clamp tooth is tightly attached to a crimping track surface of the second handle of the clamp.