CN210576963U

CN210576963U - Wire terminal crimping mould

Info

Publication number: CN210576963U
Application number: CN201922088631.4U
Authority: CN
Inventors: 曾治杰
Original assignee: Shenzhen Hrt Technology Co ltd
Current assignee: Shenzhen Hrt Technology Co ltd
Priority date: 2019-11-28
Filing date: 2019-11-28
Publication date: 2020-05-19
Anticipated expiration: 2029-11-28

Abstract

The application discloses a wire terminal crimping die which comprises a rack, mounting seats, a cutter and a sensor, wherein each mounting seat comprises a first mounting seat and a second mounting seat; the cutter comprises an upper inner cutter, an upper outer cutter, a lower inner cutter and a lower outer cutter, the upper inner cutter and the upper outer cutter are arranged at the upper end of the frame in a lifting manner, the lower inner cutter is arranged on the first mounting seat, and the lower outer cutter is arranged on the second mounting seat; the sensor includes first sensor and second sensor, and first sensor is connected with first mount pad, and the second sensor is connected with the second mount pad, and first sensor and second sensor are used for detecting the terminal crimping in-process respectively, and the pressure change that first mount pad and second mount pad received. The pressure applied to the insulation pin area and the conductor crimping area of the terminal wire is respectively obtained and compared with the standard pressure, and a defective crimping product is detected.

Description

Wire terminal crimping mould

Technical Field

The application relates to the technical field of processing equipment, in particular to a wire terminal crimping die.

Background

A complete set of terminal machine crimping system includes terminal machine and wire rod terminal crimping mould, and wire rod terminal crimping mould installs on the terminal machine, and this mould is removable, and different terminals need different moulds. During crimping, the terminal crimping that the wire rod terminal crimping mould will electrically conduct is on the wire rod to make the wire rod can conveniently connect other interfaces. The upper blade is driven by a punch of the device to move downwards to be combined with the lower blade on the base to complete the crimping of the wire. The upper blade is divided into an upper outer cutter and an upper inner cutter, the lower blade is divided into a lower outer cutter and a lower inner cutter, wherein the upper outer cutter and the lower outer cutter finish the crimping of the insulation crimping area of the terminal and the wire rod together, and the upper inner cutter and the lower inner cutter finish the crimping of the conductor crimping area of the terminal together. The insulation presser foot region is used for connecting a rubber sheet and a terminal of the electric wire, and plays a role of fixing the terminal, and the conductor crimping region is used for connecting a metal core wire and the terminal of the electric wire.

When crimping a terminal and a wire, there is a certain probability of poor crimping due to various factors such as less core wire, terminal deformation, etc., which may cause a slight change in crimping force, thereby affecting the connection quality of the wire. In order to determine whether the pressure welding is abnormal or not and to eliminate defective products, the pressure welding force may be detected, that is, the difference between the pressure welding force when the pressure welding is normal and the pressure welding force when the pressure welding is abnormal is compared to determine whether the pressure welding is defective products or not.

The crimping force detection needs to be realized through a sensor, and the installation modes of the sensor are three, namely the sensor is installed on a hanging head (or called a punch head or a hanging head) of a terminal machine, a bottom plate of the terminal machine or an upright column of the terminal machine. In the installation schemes, when the sensor detects, the pressure change caused by the gaps or vibration of the crimping die and each transmission part of the terminal machine is coupled with the pressure change on the sensor, so that the crimping force cannot be accurately detected, and the pressure change of the lower inner cutter and the lower outer cutter cannot be distinguished, so that the detection capability has obvious defects.

Disclosure of Invention

The application provides a wire rod terminal crimping mould can solve present crimping power and detect not accurate enough problem.

In order to achieve the purpose, the following technical scheme is adopted in the application:

a wire terminal crimping die comprises a rack, a mounting seat, a cutter and a sensor, wherein the mounting seat comprises a first mounting seat and a second mounting seat which are mounted at the lower end of the rack; the cutter comprises an upper inner cutter, an upper outer cutter, a lower inner cutter and a lower outer cutter, the upper inner cutter and the upper outer cutter are arranged on a sliding block at the upper end of the rack in a lifting manner, the lower inner cutter is arranged on the first mounting seat, and the lower outer cutter is arranged on the second mounting seat; the lower inner cutter is vertically aligned with the upper inner cutter, and the lower outer cutter is vertically aligned with the upper outer cutter; the sensor includes first sensor and second sensor, and first sensor is connected with first mount pad, and the second sensor is connected with the second mount pad, and first sensor and second sensor are used for detecting the pressure that first mount pad and second mount pad received respectively.

The first mounting seat and the second mounting seat can be arranged at intervals up and down.

In the first implementation mode, the side end of the first mounting seat is flush with the side end of the second mounting seat, the side ends of the first mounting seat and the second mounting seat are provided with protrusions, the lower inner cutter and the lower outer cutter are provided with limiting holes, and the protrusions of the first mounting seat are clamped into the limiting holes of the lower inner cutter; the lower inner cutter is also provided with a dodging hole, the protrusion of the second mounting seat penetrates through the dodging hole of the lower inner cutter and then is clamped into the limiting hole of the lower outer cutter, and the dodging hole of the lower inner cutter is used for providing a dodging space for the protrusion of the second mounting seat.

The first installation seat and the second installation seat are arranged in a stepped structure at intervals from top to bottom, and the first installation seat is positioned above the second installation seat.

In the second implementation mode, the side ends of the first installation seat and the second installation seat are provided with protrusions, the lower inner cutter and the lower outer cutter are provided with limiting holes, the protrusions of the first installation seat are clamped into the limiting holes of the lower inner cutter, and the protrusions of the second installation seat are clamped into the limiting holes of the lower inner cutter.

In a third embodiment, the side ends of the first and second mounting seats are provided with outwardly extending knife grooves, the bottom end of the lower inner knife is embedded into the knife groove of the first mounting seat, and the bottom end of the lower outer knife is embedded into the knife groove of the second mounting seat.

Further, still include cutter and cutter seat, the cutter is installed in the outside of outer sword down, and cutter seat demountable installation is in the outside of cutter, and the cutter seat is used for compressing tightly cutter, outer sword and lower inner cutter down to the mount pad direction.

Further, the first sensor is mounted at the bottom in the first mounting seat, and the second sensor is mounted at the bottom in the second mounting seat.

The first mounting seat and the second mounting seat can also be arranged oppositely.

In the fourth embodiment, the first mounting seat and the second mounting seat are respectively provided with a bulge at the opposite side ends, the lower outer cutter and the lower inner cutter are respectively provided with a limiting hole, the bulge of the first mounting seat is clamped into the limiting hole of the lower inner cutter, and the bulge of the second mounting seat is clamped into the limiting hole of the lower outer cutter.

The beneficial effect of this application is:

1) the lower inner cutter and the lower outer cutter are respectively arranged on the first mounting seat and the second mounting seat, the first mounting seat and the second mounting seat are respectively connected with sensors, and the two sensors respectively acquire the pressure borne by the first mounting seat and the second mounting seat, namely the pressure borne by the insulating press foot area and the conductor press-connection area, so that the interference of other parts of the press-connection device is eliminated, the press-connection quality is convenient to judge whether the press-connection quality is qualified or not, the press-connection defective products are more effectively detected, and the situations of missing detection, false alarm and the like are avoided;

2) in the crimping process, the pressure received by the insulating crimping foot area is much smaller than that of the conductor crimping area, so that the pressure change at the position is smaller than the whole pressure change proportion, the traditional method can only detect the superposed pressure received by two areas and a cutter, and the poor crimping condition of the insulating crimping foot area can be detected in a more targeted manner after the device separately detects the insulating crimping foot area and the conductor crimping area.

Drawings

Fig. 1 is a perspective view of a wire terminal crimping die;

fig. 2 is an exploded view of a wire terminal crimping die in example 1;

FIG. 3 is a view showing the state of mounting the lower inner cutter in embodiment 1;

fig. 4 is a side sectional view of the mount, the lower inner blade, and the lower outer blade of example 1.

Detailed Description

The present application will be described in further detail below with reference to the accompanying drawings by way of specific embodiments.

The existing terminal crimping system comprises a terminal machine and a wire terminal crimping die, and a sensor is usually arranged on a punch of the terminal machine, a bottom plate of the terminal machine or an upright post of the terminal machine for detecting crimping force, the sensor at the position can only measure the approximate pressure of the punch in the downward crimping process, and the pressure comprises the total pressure after the inner knife, the outer knife and the cutter are stacked, so that the condition of insufficient accuracy exists. The pressure required by the insulation pressure foot area at the top end of the outer cutter is much smaller than that of the conductor pressure welding area at the top end of the inner cutter, namely the pressure change of the insulation pressure welding area is small relative to the change proportion of the total pressure, which can cause the condition that the poor pressure welding of the insulation pressure foot is difficult to detect. On the other hand, the cutter is used for cutting off the terminal from the terminal material belt, and the pressure has fluctuation, and the pressure is an obstruction factor for detecting the insulation pressing foot area and the conductor pressing area and can influence the detection results of the two detection areas. The existing detection method is that a sensor is arranged on a terminal machine instead of a wire terminal crimping die, so that accurate detection on the crimping quality of the wire terminal cannot be achieved, and the subsequent product assembly is influenced due to the fact that a large number of defective products are missed. The wire terminal crimping mould of this application can solve not enough that exists at present.

As shown in figure 1, a wire terminal crimping mould has material conveying district A and crimping district B, and material conveying district A conveys wire rod and terminal material area to crimping district B, carries out the crimping to wire rod and terminal by crimping district B, and mount pad, cutter and the sensor of this application have installed in crimping district B. A plurality of terminals are connected to the terminal strip, and the crimping device can cut each terminal from the terminal strip at the crimping zone B while crimping the terminal and the wire.

As shown in fig. 1 to 4, a wire terminal crimping die comprises a frame 1, a mounting seat 2, a cutter 3 and a sensor 4, wherein the frame 1 is a main body supporting part of the whole device. The mounting base 2 includes a first mounting base 21 and a second mounting base 22, and the first mounting base 21 and the second mounting base 22 are both mounted at the lower end of the frame 1. The cutter 3 includes an upper inner cutter, an upper outer cutter (not shown in the drawings), a lower inner cutter 31 and a lower outer cutter 32.

The upper end of the frame 1 is provided with a lifting punch 11, and an upper inner cutter and an upper outer cutter are arranged at the bottom of the punch 11. The lower inner blade 31 is mounted on the first mounting base 21 and the lower outer blade 32 is mounted on the second mounting base 22. In addition, the lower inner blade 31 and the upper inner blade are aligned up and down, the lower outer blade 32 and the upper outer blade are aligned up and down, the upper outer blade and the lower outer blade 32 jointly complete the crimping of the insulation crimping region of the terminal and the wire, and the upper inner blade and the lower inner blade 31 jointly complete the crimping of the conductor crimping region of the terminal.

As shown in fig. 4, the sensor 4 is a pressure sensor, the sensor 4 includes a first sensor 41 and a second sensor 42, the first sensor 41 and the second sensor 42 are respectively used for measuring the pressure applied to the first mounting seat 21 and the second mounting seat 22, because the first mounting seat 21 and the second mounting seat 22 deform under the pressure, and the sensor 4 outputs an electrical signal that changes with the deformation after detecting. The deformation of mount pad 2 is directly proportional to the pressure that the terminal received, therefore rear end processing system can accurately acquire the pressure that the insulating pin district and the conductor crimping district of terminal line received respectively through the signal of telecommunication of sensor 4. The atress of terminal can change in the bad crimping process, and the deformation of first mount pad 21 and second mount pad 22 is different when can leading to bad crimping with normal crimping, so through the pressure that detects two places and compare its standard pressure when with normal crimping, just can judge whether the crimping quality in insulating presser foot district and conductor crimping district accords with the standard.

The two mounting seats 2 can be arranged in a variety of positions, such as the first mounting seat 21 and the second mounting seat 22 are spaced up and down to prevent the mounting seats 2 from interfering with each other. The method comprises the following specific steps:

example 1:

as shown in fig. 2 and 4, the side ends of the first mounting seat 21 and the second mounting seat 22 are flush, and the side ends of the first mounting seat 21 and the second mounting seat have protrusions 23 extending outward. The lower inner knife 31 and the lower outer knife 32 are both provided with limiting holes 33 which can be clamped with the protrusions. As shown in fig. 4, during installation, the protrusion 23 of the first installation seat 21 can be just snapped into the limiting hole 33 of the lower inner blade 31; the length of the protrusion 23 of the second mounting seat 22 is longer than that of the protrusion 23 of the first mounting seat 21, and the protrusion 23 of the second mounting seat 22 is snapped into the limiting hole 33 of the lower outer blade 32.

Since the lower inner blade 31 is blocked between the lower outer blade 32 and the second mounting seat 22, a relief hole 34 is provided in the lower inner blade 31. The hole diameter of the avoiding hole 34 is larger than that of the limiting hole 33, so that the avoiding hole 34 can provide enough avoiding space for the protrusion 23 to avoid the contact between the protrusion 23 of the second mounting seat 22 and the lower inner cutter 31. Even if the lower inner blade 31 moves downward in the whole passive manner during the crimping process, the protrusion 23 of the second mounting seat 22 does not contact the hole wall of the avoidance hole 34 due to the sufficient avoidance space. The structure enables the bulge 23 of the first mounting seat 21 to be mounted and connected with the lower inner blade 31 only, and the bulge 23 of the second mounting seat 22 to be mounted and connected with the lower outer blade 32 only.

In this embodiment, as shown in fig. 2 and 4, the lower outer blade 32 is also provided with a relief hole 34, and when the installation length of the protrusion 23 of the first installation seat 21 exceeds the thickness of the lower inner blade 31, the relief hole 34 of the lower outer blade 32 can accommodate the protrusion 23 of the first installation seat 21, so as to prevent the protrusion 23 from pressing the lower outer blade 32 outwards.

Besides the side ends of the two mounting seats 2 being flush, the first mounting seat 21 and the second mounting seat 22 may be arranged at an interval up and down in a stepped structure, for example, the first mounting seat 21 is located above the second mounting seat 22, and the side end of the second mounting seat 22 and the side end of the first mounting seat 21 are stepped, as follows:

example 2:

the first mounting seat 21 is mounted above the second mounting seat 22, spaced apart. The side end of the first mounting seat 21 and the side end of the second mounting seat 22 are both provided with a protrusion 23, and the lower inner blade 31 and the lower outer blade 32 are both provided with a limiting hole 33. The lower inner cutter 31 is positioned at the side end of the first mounting seat 21, and the bulge 23 of the first mounting seat 21 is clamped into the limiting hole 33 of the lower inner cutter 31; the lower outer blade 32 is located at the side end of the second mounting seat 22, and the protrusion 23 of the second mounting seat 22 is snapped into the limiting hole 33 of the lower outer blade 32. In this embodiment, the lower outer blade 32 is higher than the lower inner blade, so that the top edges of the two blades 3 are flush, and the bottom of the lower inner blade 31 does not touch the second mounting seat 22.

Example 3:

the two mounting bases 2 are still arranged in a stepped structure at intervals up and down, the side ends of the two mounting bases are not provided with protrusions, instead, the side ends of the first mounting base 21 and the second mounting base 22 are provided with cutter grooves extending outwards, the bottom end of the lower inner cutter 31 is embedded into the cutter groove of the first mounting base 21, and the bottom end of the lower outer cutter 32 is embedded into the cutter groove of the second mounting base. The two cutters 2 apply pressure to the two cutter grooves respectively, so that the pressure applied to the two mounting seats 2 can be measured by different sensors 4.

A wire terminal crimping die further comprises a cutter 5 and a cutter holder 6, wherein the cutter 5 is mounted on the outer side of a lower outer cutter 32, and when a punch 11 descends, the cutter 5 cuts a terminal from a terminal strip. The cutter seat 6 is detachably mounted on the outer side of the cutter 5, and the cutter seat 6 is used for pressing the cutter 5, the lower outer cutter 32 and the lower inner cutter 31 towards the mounting seat 2.

The above-mentioned manner of arranging the two mounting seats 2 up and down is not limited, and the first mounting seat 21 and the second mounting seat 22 may be disposed opposite to each other.

Example 4:

the first and second mounting

seats

21 and 22 are oppositely disposed at the lower end of the frame 1, and the first and second mounting

seats

21 and 22 are each provided with a protrusion 23 at opposite lateral ends. The lower outer cutter 32 and the lower inner cutter 31 are both provided with limiting holes 33, the bulge 23 of the first mounting seat 21 is clamped into the limiting hole 33 of the lower inner cutter 31, and the bulge 23 of the second mounting seat 22 is clamped into the limiting hole 33 of the lower outer cutter 32, which is equivalent to that the two mounting seats 2 clamp the two cutters 3 at the middle position.

In this embodiment, the cutter 5 is provided with a cutter limiting hole, and the protrusion 23 of the second mounting seat 22 is sequentially inserted into the cutter limiting hole of the cutter 5 and the limiting hole 33 of the lower outer cutter 32, so that the cutter 5 is clamped between the lower outer cutter 32 and the second mounting seat 22.

In embodiments 1 to 4, the first sensor 41 is attached to the bottom inside the first mounting seat 21, and when the upper inner blade is pressed downward by the punch 11, the lower inner blade 31 is forced and applies the force to the first mounting seat 21, whereby the first sensor 41 measures the pressure of the conductor crimping region. Similarly, when the upper outer blade is pressed downward by the punch 11, the lower outer blade 32 is forced and applies the force to the second mounting seat 22, and the second sensor 42 measures the pressure in the insulating presser foot area.

In other embodiments, the positional relationship between the first mounting seat and the second mounting seat and the connection relationship between the sensor and the mounting seat may be of other types, and the mounting manner of the lower inner blade and the first mounting seat and the mounting manner of the lower outer blade and the second mounting seat may be of other types.

The utility model provides a terminal crimping mould has got rid of the influence of the pressure that the cutter received and whole terminal crimping device, acquires the pressure in insulating presser foot district and conductor crimping district respectively through first sensor and second sensor, can detect out the bad condition of crimping in insulating presser foot district or conductor crimping district effectively, judges more accurately and effectively.

The foregoing is a more detailed description of the present application in connection with specific embodiments thereof, and it is not intended that the present application be limited to the specific embodiments thereof. It will be apparent to those skilled in the art from this disclosure that many more simple derivations or substitutions can be made without departing from the inventive concepts herein.

Claims

1. The utility model provides a wire rod terminal crimping mould which characterized in that: the method comprises the following steps:

a frame;

the mounting seat comprises a first mounting seat and a second mounting seat, and the first mounting seat and the second mounting seat are mounted at the lower end of the rack;

the cutter comprises an upper inner cutter, an upper outer cutter, a lower inner cutter and a lower outer cutter, wherein the upper inner cutter and the upper outer cutter are arranged at the upper end of the rack in a lifting manner, the lower inner cutter is arranged on the first mounting seat, and the lower outer cutter is arranged on the second mounting seat; the lower inner cutter is vertically aligned with the upper inner cutter, and the lower outer cutter is vertically aligned with the upper outer cutter;

and the sensor comprises a first sensor and a second sensor, the first sensor is connected with the first mounting seat, the second sensor is connected with the second mounting seat, and the first sensor and the second sensor are respectively used for detecting the pressure applied to the first mounting seat and the second mounting seat.

2. The wire terminal crimping die of claim 1, wherein: the first mounting seat and the second mounting seat are arranged at intervals up and down.

3. The wire terminal crimping die of claim 2, wherein: the side end of the first mounting seat is flush with the side end of the second mounting seat, the side ends of the first mounting seat and the second mounting seat are provided with bulges, the lower inner cutter and the lower outer cutter are provided with limiting holes, and the bulges of the first mounting seat are clamped into the limiting holes of the lower inner cutter; the lower inner cutter is further provided with a dodging hole, the protrusion of the second mounting seat penetrates through the dodging hole of the lower inner cutter and then is clamped into the limiting hole of the lower outer cutter, and the dodging hole of the lower inner cutter is used for providing a dodging space for the protrusion of the second mounting seat.

4. The wire terminal crimping die of claim 2, wherein: the first installation seat and the second installation seat are arranged in a stepped structure at intervals from top to bottom, and the first installation seat is located above the second installation seat.

5. The wire terminal crimping die of claim 4, wherein: the side of first mount pad and second mount pad all has the arch, all be equipped with spacing hole down on interior sword and the outer sword down, the protruding card of first mount pad is gone into down the spacing downthehole of interior sword, the protruding card of second mount pad is gone into down the spacing downthehole of interior sword.

6. The wire terminal crimping die of claim 4, wherein: the side ends of the first mounting seat and the second mounting seat are respectively provided with a cutter groove extending outwards, the bottom end of the lower inner cutter is embedded into the cutter groove of the first mounting seat, and the bottom end of the lower outer cutter is embedded into the cutter groove of the second mounting seat.

7. The wire terminal crimping die of any one of claims 1-6, wherein: the cutting device is characterized by further comprising a cutter and a cutter seat, wherein the cutter is installed on the outer side of the lower outer cutter, the cutter seat is detachably installed on the outer side of the cutter, and the cutter seat is used for pressing the cutter, the lower outer cutter and the lower inner cutter towards the direction of the installation seat.

8. The wire terminal crimping die of any one of claims 1-6, wherein: the first sensor is arranged at the bottom in the first mounting seat, and the second sensor is arranged at the bottom in the second mounting seat.

9. The wire terminal crimping die of claim 1, wherein: the first mounting seat and the second mounting seat are arranged oppositely.

10. The wire terminal crimping die of claim 9, wherein: first mount pad and second mount pad are all equipped with the arch at both relative sides, outer sword all is equipped with spacing hole with interior sword down, the protruding card of first mount pad is gone into down the spacing downthehole of interior sword, the protruding card of second mount pad is gone into down the spacing downthehole of outer sword.