Wire pressing device capable of identifying crimping state and test system

Abstract

The invention discloses a wire pressing device capable of identifying a crimping state and a test system, and solves the problem that an existing wire pressing terminal cannot confirm whether wire crimping is good or not, and the wire pressing device specifically comprises a wire pressing terminal seat and a plurality of wire pressing terminals; a plurality of compression springs are arranged in the wire pressing terminal seat; the wire pressing terminal comprises a button, a limiting block and a PCB (Printed Circuit Board); the lower end of the button is arranged in the wire pressing terminal seat in a penetrating mode and abuts against the corresponding compression spring, a U-shaped installation cavity is formed in the bottom of the button, and the two parallel inner walls of the U-shaped installation cavity are each provided with a protruding edge. The limiting block penetrates through the U-shaped mounting cavity, and the two ends of the limiting block protrude out of the outer side of the button and are detachably connected with the wire pressing terminal seat; the PCB is arranged on the upper surfaces of the two protruding edges and located below the limiting block, the bottom of the PCB is connected with two identification wires which are not communicated, and the PCB is used for communicating the two identification wires through a to-be-detected wire which is connected between the PCB and the limiting block in a pressed mode under the action of the compression spring so as to identify the pressing connection state of the to-be-detected wire.

Description

Technical Field

[0001] The present invention relates to a wire pressing device and a testing system, and particularly to a wire pressing device and a testing system capable of identifying the crimping state. Background Art

[0002] During the production process of many electronic products, some of the externally led-out parts of the components are loose wires. If the product needs to be tested, generally, additional wires need to be welded, and then removed after the test is completed, which undoubtedly greatly increases the test workload. Using a wire pressing terminal is a means to quickly connect and disconnect wires. Traditional wire pressing terminals use conductive materials to crimp wires, but due to the existence of insulating wire sheaths on the wires, it is impossible to confirm whether the crimping is good. In the case of a large number of wires, it is impossible to quickly confirm whether it is a product quality problem or a wire crimping problem, resulting in very cumbersome troubleshooting work. Therefore, there is an urgent need for a wire pressing device that can quickly determine whether the crimping state is good after the wiring is completed. Summary of the Invention

[0003] In order to solve the technical problem that the existing wire pressing terminals cannot confirm whether the wire crimping state is good, the present invention provides a wire pressing device and a testing system capable of identifying the crimping state.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions: The present invention provides a wire pressing device capable of identifying the crimping state, which is characterized in that: It includes a wire pressing terminal seat and N wire pressing terminals, where N≥1 and is a positive integer; N compression springs corresponding to the N wire pressing terminals are arranged side by side in the wire pressing terminal seat; the bottom of the compression spring abuts against the wire pressing terminal; The wire pressing terminal includes a button, a limit block, and a PCB board; The lower end of the button passes through the wire pressing terminal seat, and its lower end abuts against the top of the corresponding compression spring. An open-down U-shaped installation cavity is provided at the bottom of the button. On the two parallel inner walls of the U-shaped installation cavity, there is respectively a convex rib parallel to the bottom of the U-shaped installation cavity, and the upper surfaces of the two convex ribs are on the same horizontal plane; The limit block passes through the U-shaped installation cavity, is located above the convex rib, and both ends protrude outside the button and are detachably connected to the wire pressing terminal seat for restricting the downward stroke of the button; The PCB board is arranged on the upper surfaces of the two convex ribs and is located below the limit block. Two unconnected identification wires are connected to the bottom of the PCB board; the identification wire 4 is used to connect to an external testing device; the PCB board is used to connect the two identification wires under the resilience of the compression spring by crimping the wire to be tested between the PCB board and the limit block, so as to identify the crimping state of the wire to be tested.

[0005] Further, the PCB board includes a substrate, a first pad and a second pad disposed on the upper surface of the substrate, and a third pad and a fourth pad disposed on the lower surface of the substrate; The first pad and the third pad are interconnected; The second pad and the fourth pad are interconnected; The third pad and the fourth pad are respectively connected to two identification wires.

[0006] Further, the wire pressing terminal seat includes a top plate, a front side plate, a bottom plate and a rear side plate; The top plate, the front side plate, the bottom plate and the rear side plate are sequentially connected end to end to form a square tube; An installation bump is provided between the top plate and the front side plate; N vertically penetrating stepped holes are arranged side by side in the installation bump along the horizontal direction of the top plate; the stepped holes include a small hole, a middle hole and a large hole arranged in sequence from bottom to top; a first step surface is formed between the small hole and the middle hole, and a second step surface is formed between the middle hole and the large hole; N first installation holes corresponding to the large holes in one-to-one correspondence are provided on the top plate; N second installation holes corresponding to the large holes in one-to-one correspondence are provided on the front side plate for installing the wire to be measured; N third installation holes corresponding to the small holes in one-to-one correspondence are provided on the bottom plate; the lower end of the button is inserted into the corresponding first installation hole and large hole; one end of the limiting block protruding from the button is inserted into the side wall of the corresponding large hole, and the other end protruding from the button is detachably connected to the front side plate; the PCB board is located in the corresponding large hole; N compression springs are installed in N middle holes, the bottom ends of which abut against the corresponding first step surfaces, and the top ends abut against the bottom surfaces of the corresponding buttons; the two identification wires are inserted into the corresponding compression springs and sequentially pass through the corresponding small holes and third installation holes.

[0007] Further, the limiting block is made of resin; A metal nut is embedded in the middle of the limiting block; N fourth installation holes corresponding to the limiting blocks in one-to-one correspondence are provided on the front side plate; a metal screw is provided in each fourth installation hole; the head of the metal screw is embedded in the front side plate, and the tail passes through the front side plate and the limiting block and is threadedly connected to the metal nut to realize the detachable connection between the limiting block and the front side plate.

[0008] Further, a prism is respectively provided below each convex rib; The two prisms are parallel to each other and are inserted into the compression spring.

[0009] Further, a limiting groove corresponding to the second installation hole is provided on the side wall of each large hole for restricting the insertion length of the wire to be measured.

[0010] Furthermore, a connecting and reinforcing plate is provided between the opposite faces of the two prisms.

[0011] Furthermore, the bottom surface of the limiting block is serrated; The top surface of the button is provided with a downwardly concave arc groove, and arc chamfers are provided at its edges. The rear side plate is detachably connected to the bottom plate and the top plate respectively.

[0012] The present invention also provides a test system capable of identifying the crimping state, which is characterized in that: It includes the above-mentioned wire crimping device capable of identifying the crimping state; It further includes N test devices; The N test devices correspond to N wire crimping terminals one by one; Two identification wires connected to the same PCB board are connected to the same test device.

[0013] Furthermore, the test device is a multimeter.

[0014] The beneficial effects of the present invention: 1. The wire crimping device capable of identifying the crimping state provided by the present invention is provided with a PCB board inside the wire crimping terminal, and two identification wires are connected to the PCB board. The wire to be tested is pressed on the PCB board by the limiting block, and it is possible to observe whether the two identification wires are connected, so as to accurately judge the crimping state of the wire to be tested, which is convenient and fast.

[0015] 2. The PCB board in the present invention is provided with four pads. The first pad and the second pad are arranged on the upper surface of the substrate and are not connected. The third pad and the fourth pad are arranged on the lower surface of the substrate and are respectively connected to the first pad and the second pad. When the wire to be tested is pressed between the first pad and the second pad, if the crimping state is good, the first pad and the second pad are connected, and then the two identification wires are connected, otherwise not; by testing the two identification wires, the crimping state of the wire to be tested can be quickly and accurately judged, thereby greatly improving the test efficiency.

[0016] 3. The present invention is provided with a wire crimping terminal seat that cooperates with the wire crimping terminal. The wire crimping terminal seat is provided with a stepped hole, a compression spring is arranged in the hole, and a second installation hole corresponding to the large hole is arranged on the front side plate. By pressing the button to compress the compression spring in the wire crimping terminal seat, the wire to be tested is placed through the second installation hole, and after releasing the hand, the compression spring pushes the button upward, and the wire to be tested can be crimped between the PCB board and the limiting block, and the operation is simple and fast, which is beneficial to improving the test efficiency.

[0017] 4. The wire crimping terminal seat provided by the present invention can be installed with N wire crimping terminals, and its structure is simple, easy to manufacture, and can adapt to more and more complex application scenarios.

[0018] 5. The limit block of the present invention is made of resin, and a metal nut is embedded in the limit block. Then, the detachable connection between the limit block and the front side plate is realized through the cooperation of the metal screw and the metal nut, which can reduce the production cost and ensure the reliability of its connection at the same time, killing two birds with one stone.

[0019] 6. A prism is provided at the bottom of the button of the present invention, and the prism extends into the compression spring to play a guiding role when the compression spring expands and contracts, thereby improving the stability of the entire wire pressing device.

[0020] 7. A limit groove is provided on the side wall of the large hole in the installation bump of the present invention, which can limit the length of the wire to be measured extending in, so as to confirm whether the wire to be measured is installed in place, improving the test efficiency.

[0021] 8. A connection reinforcement plate is also provided between the two prisms of the present invention, which can increase the stability of the button, making it more reassuring to use and the overall structure more reliable.

[0022] 9. The bottom surface of the limit block of the present invention is set to be serrated, and the serrations can increase the friction force, avoid the wire to be measured from slipping during the test, and improve the test reliability of the wire pressing device.

[0023] 10. An arc groove and an arc chamfer are provided on the top surface of the button of the present invention, which can reduce the discomfort caused by long-term pressing and improve the comfort of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic structural diagram of an embodiment of a wire pressing device capable of identifying the crimping state of the present invention; Figure 2 is a schematic structural diagram of a wire pressing terminal with a compression spring sleeved thereon in an embodiment of the present invention; Figure 3 is a schematic structural diagram of the button in an embodiment of the present invention Figure 1 ; Figure 4 is a schematic structural diagram of the button in an embodiment of the present invention Figure 2 ; Figure 5 is a schematic diagram of the upper surface of the PCB board in an embodiment of the present invention; Figure 6 is a schematic diagram of the lower surface of the PCB board in an embodiment of the present invention; Figure 7 is a schematic structural diagram of a wire pressing terminal seat in an embodiment of the present invention; Figure 8 is a cross-sectional view of a wire pressing device capable of identifying the crimping state in an embodiment of the present invention; Figure 9 is a sectional view of a wire pressing device capable of identifying the crimping state in an embodiment of the present invention.

[0025] Reference numerals in the drawings: 1 - Crimping terminal block, 11 - Top plate, 111 - First mounting hole, 12 - Front side plate, 121 - Second mounting hole, 122 - Fourth mounting hole, 13 - Bottom plate, 131 - Third mounting hole, 14 - Rear side plate, 15 - Compression spring, 16 - Mounting bump, 161 - Small hole, 162 - Medium hole, 163 - Large hole, 164 - First step surface, 165 - Second step surface, 166 - Limiting groove; 2 - Crimping terminal, 21 - Button, 211 - U-shaped mounting cavity, 212 - Ridge, 213 - Prism, 214 - Connecting reinforcement plate, 22 - Limiting block, 221 - Metal nut, 222 - Metal screw, 23 - PCB board, 230 - Substrate, 231 - First pad, 232 - Second pad, 233 - Third pad, 234 - Fourth pad; 3 - Wire to be measured; 4 - Identification wire. Detailed implementation manners

[0026] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the accompanying drawings and embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] An embodiment of the present invention provides a wire crimping device capable of identifying the crimping state, as Figure 1 shown, including a crimping terminal block 1 and N crimping terminals 2, where N≥1 and is a positive integer; in this embodiment, N = 8, and in other embodiments, N can be set to 6, 9, 10 according to requirements.

[0028] As Figure 2 shown, the crimping terminal 2 includes a button 21, a limiting block 22, and a PCB board 23.

[0029] As Figure 3 and Figure 4As shown, the lower end of the button 21 is inserted into the wire pressing terminal seat 1. There is a U-shaped mounting cavity 211 with an opening downward at the bottom of the button 21. On the two parallel inner walls of the U-shaped mounting cavity 211, there is a rib 212 parallel to the bottom of the U-shaped mounting cavity 211 respectively. The upper surfaces of the two ribs 212 are on the same horizontal plane; there is a prism 213 respectively below each rib 212; the two prisms 213 are parallel to each other, and there is a connecting reinforcement plate 214 between the opposite faces of the two prisms 213. The two prisms 213 and the connecting reinforcement plate 214 are all inserted into the compression spring 15 of the wire pressing terminal seat 1 for pressing and guiding. The top surface of the button 21 is provided with an arc groove sunken downward, and the edges are all provided with arc chamfers, which is beneficial to improving the pressing comfort.

[0030] The limit block 22 is inserted into the U-shaped mounting cavity 211 and is located above the rib 212. Its two ends protrude outside the button 21 and are detachably connected to the wire pressing terminal seat 1 for pressing the wire to be measured 3; in order to reduce costs, the limit block 22 in this embodiment is made of resin; at the same time, in order to improve the stability of the whole structure, a metal nut 221 is embedded in the middle of the limit block 22 in this embodiment; the bottom surface of the limit block 22 is set to be serrated, which can increase the friction between the limit block 22 and the wire to be measured 3 and prevent the wire to be measured 3 from slipping during measurement.

[0031] As Figure 5 and Figure 6 shown, the PCB board 23 is arranged on the upper surfaces of the two ribs 212 and is located below the limit block 22. The PCB board 23 includes a substrate 230, a first solder pad 231 and a second solder pad 232 arranged on the upper surface of the substrate 230, a third solder pad 233 and a fourth solder pad 234 arranged on the lower surface of the substrate 230; the first solder pad 231 and the third solder pad 233 are interconnected; the second solder pad 232 and the fourth solder pad 234 are interconnected; the areas of the first solder pad 231 and the second solder pad 232 are both larger than the areas of the third solder pad 233 and the fourth solder pad 234; the larger-area first solder pad 231 and second solder pad 232 are used to connect the wire to be measured 3; the third solder pad 233 and the fourth solder pad 234 are respectively connected to an identification wire 4; then when the first solder pad 231 and the second solder pad 232 are connected by the wire to be measured 3, the two identification wires 4 are connected; the identification wire 4 is used to connect an external test device.

[0032] As Figure 7 shown, the wire pressing terminal seat 1 includes a top plate 11, a front side plate 12, a bottom plate 13, a rear side plate 14 and eight compression springs 15; the top plate 11, the front side plate 12, the bottom plate 13 and the rear side plate 14 are connected end to end in sequence to form a square tube; in this embodiment, there are also left side plates and right side plates installed at both ends of the square tube, which together with the square tube form a rectangular box body. The rear side plate 14 is detachably connected to the bottom plate 13, the top plate 11, the left side plate and the right side plate respectively.

[0033] As Figure 8 and Figure 9 shown, there is an installation bump 16 between the top plate 11 and the front side plate 12; eight stepped holes penetrating up and down are arranged side by side along the horizontal direction of the top plate 11 in the installation bump 16; the stepped holes include small holes 161, medium holes 162 and large holes 163 arranged in sequence from bottom to top; a first step surface 164 is formed between the small hole 161 and the medium hole 162 of each stepped hole, and a second step surface 165 is formed between the medium hole 162 and the large hole 163.

[0034] Eight first installation holes 111 corresponding to and communicating with the large holes 163 one by one are provided on the top plate 11; eight second installation holes 121 corresponding to and communicating with the large holes 163 one by one are provided on the front side plate 12 for installing the wire to be tested 3; eight third installation holes 131 corresponding to the small holes are provided on the bottom plate 13; the lower end of the button 21 is inserted into the corresponding first installation hole 111 and large hole 163; one end of the limiting block 22 protruding from the button 21 is inserted into the side wall of the corresponding large hole 163, and the other end protruding from the button 21 is detachably connected to the front side plate 12; the PCB board 23 is located in the corresponding large hole 163; a limiting groove 166 corresponding to the second installation hole 121 is provided on the side wall of each large hole 163 for limiting the extending length of the wire to be tested 3.

[0035] Eight compression springs 15 are installed in eight medium holes 162; the bottom end of each compression spring 15 abuts against the corresponding first step surface 164, and the top end of each compression spring 15 abuts against the bottom surface of the corresponding button 21; two identification wires 4 are inserted into the corresponding compression springs 15 and sequentially pass through the corresponding small holes 161 and third installation holes 131 to connect the test equipment.

[0036] Eight fourth installation holes 122 corresponding to the limiting blocks 22 one by one are provided on the front side plate 12; a metal screw 222 is provided in each fourth installation hole 122; the head of the metal screw 222 is embedded in the front side plate 12, and its tail passes through the front side plate 12 and the limiting block 22 and is threadedly connected to the metal nut 221 to realize the detachable connection between the limiting block 22 and the front side plate 12.

[0037] Its using process includes the following steps: Step 1, installation; Open the rear side plate 14 of the wire pressing terminal block 1; Taking the installation of one of the wire pressing terminals 2 onto the wire pressing terminal base 1 as an example, first pass two identification wires 4 from bottom to top through the third mounting holes 131 on the bottom plate 13, then through the stepped holes on the mounting bumps 16. Slip compression springs 15 over the two identification wires 4, and place the compression springs 15 into the stepped holes, letting them fall into the small holes 161. Place the PCB board 23 on the upper surfaces of the two convex ribs 212 of the button 21. Connect the two identification wires 4 to the third pad 233 and the fourth pad 234 on the PCB board respectively. Place the PCB board 23 with the identification wires 4 connected and the button 21 together into the stepped hole, so that the prism 213 and the connection reinforcement plate 214 at the bottom of the button 21 extend into the compression spring 15, and the bottom of the button 21 contacts the top surface of the compression spring 15. At this time, pass the limit block 22 with the metal nut 221 embedded through the large hole 163 of the stepped hole from the mounting bump 16, and then pass the metal screw 222 through the corresponding second mounting hole 121 on the front side plate 12 and thread it with the metal nut 221. The limit block 22 is square as a whole, so just rotate the metal screw 222 directly; the installation steps of other wire pressing terminals 2 are the same.

[0038] After all the wire pressing terminals 2 are installed in place, then connect the rear side plate 14 to the top plate 11, the bottom plate 13, the left side plate and the right side plate, and the entire wire pressing device is installed.

[0039] Step 2, testing; Press the button 21, the compression spring 15 is compressed, and an installation space appears between the PCB board 23 and the limit block 22. Insert the wire to be tested 3 into this installation space until the end face of the wire to be tested 3 contacts the bottom of the limit groove 166 on the inner wall of the large hole 163. Release the button 21, the compression spring 15 rebounds and pushes the button 21 upward, then the wire to be tested 3 is crimped between the PCB board 23 and the limit block 22; Measure whether the two identification wires 4 connected to the same PCB board 23 are connected; If they are connected, it means that the wire to be tested 3 has connected the first pad 231 and the second pad 232 on the PCB board 23, that is, the crimping state of the wire to be tested 3 is good; Otherwise, it means that the wire to be tested 3 has not connected the first pad 231 and the second pad 232 on the PCB board 23, then the wire to be tested 3 has not achieved effective crimping.

[0040] This embodiment also provides a test system capable of identifying the crimping state, including the above-mentioned wire pressing device capable of identifying the crimping state, and further including 8 test devices; the 8 test devices correspond to the 8 wire pressing terminals 2 one by one; the two identification wires 4 connected to the same PCB board 23 are connected to the same test device, and each test device is used to test whether the two identification wires 4 connected to the same PCB board 23 are connected, so as to achieve the identification function. In this embodiment, the test device is a multimeter, but it is not limited to a multimeter.

[0041] As described above, it is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims described above.

Claims

1. A wire crimping device capable of identifying a crimping state, characterized in that: It comprises a crimping terminal seat (1) and N crimping terminals (2), where N is ≥ 1 and is a positive integer; N compression springs (15) corresponding to the N compression terminals (2) are arranged side by side in the compression terminal seat (1); the bottom of the compression spring (15) abuts against the compression terminal (2); The wire pressing terminal (2) comprises a button (21), a limit block (22) and a PCB board (23); The lower end of the button (21) is inserted into the wire crimping terminal seat (1), and the lower end thereof abuts against the top of the corresponding compression spring (15). The bottom of the button (21) is provided with a U-shaped installation cavity (211) opening downward, and two parallel inner walls of the U-shaped installation cavity (211) are respectively provided with a ridge (212) parallel to the bottom of the U-shaped installation cavity (211), and the upper surfaces of the two ridges (212) are located on the same horizontal plane; The limit block (22) is inserted into the U-shaped installation cavity (211) and is located above the convex ridge (212). Its two ends protrude from the outside of the button (21) and are detachably connected to the wire pressing terminal seat (1) to limit the downward travel of the button (21); The PCB board (23) is arranged on the upper surfaces of the two convex ridges (212) and is located below the limit block (22); the bottom of the PCB board (23) is connected to two unconnected identification wires (4); the identification wires (4) are used to connect external test equipment; the PCB board (23) is used to connect the two identification wires (4) through the wire to be tested (3) crimped between the PCB board (23) and the limit block (22) under the action of the rebound force of the compression spring (15) to identify the crimping state of the wire to be tested (3).

2. The wire crimping device capable of identifying the crimping state according to claim 1, characterized in that: The PCB board (23) comprises a substrate (230), a first solder pad (231) and a second solder pad (232) arranged on the upper surface of the substrate (230), and a third solder pad (233) and a fourth solder pad (234) arranged on the lower surface of the substrate (230); The first soldering pad (231) and the third soldering pad (233) are connected to each other; The second soldering pad (232) and the fourth soldering pad (234) are connected to each other; The third soldering pad (233) and the fourth soldering pad (234) are respectively connected to two identification wires (4).

3. The wire crimping device capable of identifying the crimping state according to claim 1 or 2, characterized in that: The crimping terminal seat (1) comprises a top plate (11), a front side plate (12), a bottom plate (13) and a rear side plate (14); The top plate (11), the front side plate (12), the bottom plate (13) and the rear side plate (14) are connected end to end in sequence to form a square tube; A mounting protrusion (16) is provided between the top plate (11) and the front side plate (12); N stepped holes are arranged side by side in a horizontal direction of the top plate (11) and are passed through from top to bottom; the stepped holes include a small hole (161), a middle hole (162) and a large hole (163) arranged in sequence from bottom to top; a first stepped surface (164) is formed between the small hole (161) and the middle hole (162), and a second stepped surface (165) is formed between the middle hole (162) and the large hole (163); The top plate (11) is provided with N first mounting holes (111) which are in one-to-one correspondence with the large holes (163); the front side plate (12) is provided with N second mounting holes (121) which are in one-to-one correspondence with the large holes (163) and are used to mount the wires (3) to be tested; the bottom plate (13) is provided with N third mounting holes (131) which are in one-to-one correspondence with the small holes; the lower end of the button (21) is penetrated in the corresponding first mounting hole (111) and the large hole (163); one end of the limit block (22) protruding from the button (21) is penetrated on the side wall of the corresponding large hole (163), and the other end protruding from the button (21) is detachably connected to the front side plate (12); the PCB board (23) is located in the corresponding large hole (163); N compression springs (15) are installed in N middle holes (162), with their bottom ends abutting against the corresponding first step surface (164) and their top ends abutting against the bottom surface of the corresponding button (21); two identification wires (4) are inserted into the corresponding compression springs (15) and sequentially pass through the corresponding small holes (161) and the third installation hole (131).

4. The wire crimping device capable of identifying the crimping state according to claim 3, characterized in that: The limit block (22) is made of resin; A metal nut (221) is embedded in the middle of the limit block (22); The front side plate (12) is provided with N fourth mounting holes (122) corresponding one to one with the limit blocks (22); a metal screw (222) is provided in each fourth mounting hole (122); the head of the metal screw (222) is embedded in the front side plate (12), and the tail of the metal screw (222) passes through the front side plate (12) and the limit block (22) to be threadedly connected to the metal nut (221), thereby realizing a detachable connection between the limit block (22) and the front side plate (12).

5. The wire crimping device capable of identifying crimping status according to claim 4, characterized in that: A prism (213) is provided below each of the convex ridges (212); The two prisms (213) are parallel to each other and are inserted into the compression spring (15).

6. The wire crimping device capable of identifying crimping status according to claim 5, characterized in that: A limiting groove (166) corresponding to the second mounting hole (121) is provided on the side wall of each of the large holes (163) and is used to limit the insertion length of the wire (3) to be measured.

7. The wire crimping device capable of identifying crimping status according to claim 6, characterized in that: A connecting reinforcement plate (214) is provided between the opposite surfaces of the two prisms (213).

8. The wire crimping device capable of identifying crimping status according to claim 7, characterized in that: The bottom surface of the limit block (22) is serrated; The top surface of the button (21) is provided with a downwardly recessed arc groove, and the edges thereof are all provided with arc chamfers; The rear side panels (14) are detachably connected to the bottom panel (13) and the top panel (11) respectively.

9. A testing system capable of identifying crimping status, characterized in that: A wire crimping device capable of identifying a crimping state as described in any one of claims 1 to 8; Also includes N test devices; The N test devices correspond one to one to the N wire crimping terminals (2); Two identification wires (4) connected to the same PCB board (23) are connected to the same test equipment.

10. The testing system capable of identifying crimping status according to claim 9, characterized in that: The testing device is a multimeter.

Images