An electrical connector connection angle measurement device and method

Abstract

The application belongs to the technical field of cable accessory processing, and particularly relates to an electric connector connecting piece angle measuring device and method. The device comprises a dial mechanism and a connecting piece fixing mechanism. The dial mechanism and the connecting piece fixing mechanism are connected. The dial mechanism comprises a pointer and a dial. The middle part of the pointer is connected with the center of the dial, and the pointer rotates on the dial. The pointer is connected with the connecting piece fixing mechanism. The dial is provided with a fixing assembly for fixing the electric connector and a positioning assembly for positioning the central axis of the electric connector, and the side of the dial close to the pointer is further provided with a dial scale value along the circumferential direction of the dial. The fixing assembly comprises a plurality of fixing claws, and the plurality of fixing claws are evenly arranged along the circumferential direction of the dial. The positioning assembly comprises a positioning piece, and the positioning piece is arranged on the dial. The deviation angle of the electric connector and the connecting piece can be observed, the central axis of the connecting piece and the central axis of the end surface of the electric connector are adjusted to be in the same horizontal plane, and the efficiency of cable processing and assembly is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of cable accessory processing, and particularly relates to an electric connector connecting piece angle measuring device and method. BACKGROUND

[0002] As the transmission nerve of the aircraft signal, the cable plays an irreplaceable role in the normal work of the aircraft. Part of the cable plug connecting piece is a bent connecting piece. When the bent connecting piece is connected with the aircraft product, due to the limitation of the position of the main key groove, there is a certain angle between the connecting piece and the main key groove. If the angle of the connecting piece is not appropriate, interference may occur between the plug and the plug or between the plug and other parts. Therefore, it is necessary to ensure the quality of the installation of the plug of the bent connecting piece and the accuracy of the angle of the connecting piece. At present, the angle of the bent connecting piece is basically relied on manual visual inspection. There is a large error in visual inspection, which often leads to the rework of the cable in subsequent installation and connection. Therefore, the existing measurement method for the electric connector has a large error, and needs to be improved.

[0003] For example, a Chinese patent with the patent number CN113739749A, the publication date of December 3, 2021, and the patent name of Angle measuring device for electric connector and bent accessory, the technical solution of which is as follows: The invention relates to the field of aviation circuit installation, and particularly relates to an angle measuring device for an electric connector and a bent accessory. The installation piece formed by connecting the aviation electric connector and the bent accessory is arranged between the base and the angle measuring device body. The base is also provided with a positioning reference. The projection of the positioning reference on the angle measuring device body coincides with the angle scale line of the angle measuring device body. The tail of the rear accessory of the bent accessory is perpendicular to the positioning reference. Since the axis of the bent accessory is perpendicular to the tail of the rear accessory, the axis of the bent accessory coincides with the angle scale line on the angle measuring scale disc. Thus, the angle measuring device body can directly measure the angle between the bent accessory and the main key groove on the electric connector.

[0004] Although the above-mentioned patent solves the shortcomings of low efficiency and high error rate of manual measurement using an ordinary protractor, the installation method of the device of the above-mentioned patent is complex, and the first and second concentric circle mark lines need to be aligned during measurement. Therefore, there are still the shortcomings of high measurement error rate and complex device usage. SUMMARY

[0005] In order to solve the problems in the prior art, the application provides an electric connector connecting piece angle measuring device and method, which is simple to install and operate, and has high accuracy in measurement.

[0006] In order to achieve the above technical effects, the technical solution of the present application is as follows:

[0007] In a first aspect, an electric connector connecting piece angle measuring device includes a dial mechanism and a connecting piece fixing mechanism; the dial mechanism and the connecting piece fixing mechanism are connected; the dial mechanism includes a pointer and a dial; the middle part of the pointer is connected with the center of the dial, and the pointer rotates on the dial; the pointer is connected with the connecting piece fixing mechanism; the side of the dial away from the pointer is provided with a fixing assembly for fixing the electric connector and a positioning assembly for positioning the central axis of the end surface of the electric connector, and the side of the dial close to the pointer is further provided with a dial scale value along the circumferential direction of the dial; the fixing assembly includes a plurality of fixing claws, and the plurality of fixing claws are uniformly arranged along the circumferential direction of the dial; the positioning assembly includes a positioning piece, and the positioning piece is arranged on the dial.

[0008] Further, the fixing assembly further includes a limiting rod; the limiting rod is arranged on the dial along the radial direction of the dial; the fixing claw is sleeved on the limiting rod, and the fixing claw slides on the limiting rod; one end of the limiting rod is connected with a limiting block, and the other end of the limiting rod is connected with the dial; the limiting block and the fixing claw are connected through a first elastic piece; the first elastic piece is sleeved on the limiting rod; the limiting block is fixedly arranged on the dial.

[0009] Further, a radial strip-shaped groove is arranged on the circumferential direction of the dial.

[0010] Further, a limiting rod is arranged in each strip-shaped groove, and a limiting block is arranged inside each strip-shaped groove; the limiting block is arranged on the end part of the strip-shaped groove away from the center of the dial.

[0011] Further, the three strip-shaped grooves are equal in angle; the limiting rod is three.

[0012] Further, the positioning assembly further includes a supporting rod; the supporting rod is arranged on the dial along the radial direction of the dial, and the position of the supporting rod corresponds to the zero scale value of the dial scale value; the positioning piece is sleeved on the supporting rod; the positioning piece is sleeved on the supporting rod, and the positioning piece is connected with a slot arranged on the electric connector; the slot is arranged along the central axis direction of the end surface of the electric connector; the positioning piece slides on the supporting rod; the supporting rod is sleeved with a second elastic piece at the end close to the center of the dial; one end of the second elastic piece is connected with the positioning piece, and the other end of the second elastic piece is connected with the dial.

[0013] Further, a hollow hole is arranged on the dial; the supporting rod is arranged on the hollow hole.

[0014] Further, the connecting piece fixing mechanism includes a connecting shaft and an abutting assembly; the connecting shaft is connected with the abutting assembly, and the connecting shaft is connected with the bottom of the pointer; the abutting assembly abuts with the surface of the connecting piece.

[0015] Further, the abutting assembly comprises a fixed shaft and an abutting head; the fixed shaft and the abutting head are connected, and the fixed shaft is connected with the connecting shaft; the abutting head is abutted with the connecting piece.

[0016] Further, the middle part of the pointer is provided with a latch, and the latch is connected with a bearing on the dial plate; the bearing is arranged at the center of the dial plate.

[0017] Further, the first elastic member and the second elastic member are both springs.

[0018] In a second aspect, a method for measuring the angle of an electrical connector connecting piece comprises the following specific steps:

[0019] S1: connecting the positioning piece of the positioning assembly in the dial plate mechanism with the slot of the electrical connector, and fixing the electrical connector by using the plurality of fixing claws of the fixing assembly in the dial plate mechanism;

[0020] S2: abutting the connecting piece fixing mechanism with the connecting piece;

[0021] S3: reading the dial scale value pointed by the pointer, judging the angle between the connecting piece and the electrical connector according to the read dial scale value, and then adjusting the connection between the connecting piece and the electrical connector.

[0022] Further, the dial plate mechanism and the connecting piece fixing mechanism are connected; the dial plate mechanism comprises a pointer and a dial plate; the middle part of the pointer is connected with the center of the dial plate, and the dial plate rotates on the middle part of the pointer; the pointer is connected with the connecting piece fixing mechanism for fixing the connecting piece.

[0023] Further, the dial plate is provided, on the side away from the pointer, with a fixing assembly for fixing the electrical connector and a positioning assembly for positioning the central axis of the end surface of the electrical connector, and the side of the dial plate close to the pointer is further provided, in the circumferential direction of the dial plate, with a dial scale value.

[0024] Further, the fixing assembly comprises a plurality of fixing claws, and the plurality of fixing claws are uniformly arranged in the circumferential direction of the dial plate; the positioning assembly comprises a positioning piece, and the positioning piece is connected with the slot formed on the electrical connector.

[0025] According to the above technical solution, the present application has the following beneficial effects:

[0026] 1. The device of the present application adopts a dial mechanism and a connecting fixing structure, the deviation angle between the central axis of the end surface of the electrical connector and the central axis of the connecting piece can be observed from the dial mechanism, so that the central axis of the connecting piece and the central axis of the end surface of the electrical connector can be accurately adjusted to be in the same horizontal plane according to the angle between the pointer and the dial, the installation angle is not deviated, and the efficiency of the later cable processing and assembly is improved.

[0027] 2. In the device of the present application, the fixing assembly adopts a limiting rod, a fixing claw, a first elastic member and a limiting block, the position of the fixing claw on the limiting rod can be adjusted according to the size of the end of the electrical connector, and the fixing claw is provided with clamping force by the first elastic member, so that the electrical connector is quickly fixed, and the fixing mode of the fixing assembly is simple and convenient to operate.

[0028] 3. In the device of the present application, the positioning assembly adopts a supporting rod, a positioning member and a second elastic member, so that the positioning assembly can quickly position the central axis of the electrical connector, which is more convenient and more accurate than the alignment of the concentric circle mark line in the prior art.

[0029] 4. In the device of the present application, the connecting piece fixing mechanism adopts a connecting shaft, a fixing shaft and an abutting head, the abutting head is abutted with the connecting piece, and since the connecting shaft is connected with the pointer of the dial mechanism, if there is a deviation angle between the central axis of the connecting piece and the electrical connector, the connecting shaft will also drive the pointer to deviate, thereby achieving the technical effect of quickly and accurately measuring the deviation angle between the central axis of the connecting piece and the electrical connector.

[0030] 5. The method of the present application can quickly obtain the deviation angle between the central axis of the electrical connector and the connecting piece by reading the dial scale value on the pointer, thereby facilitating the subsequent quick adjustment of the connection between the connecting piece and the electrical connector. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is an assembly structure diagram of the device of the present application and the electrical connector and the connecting piece.

[0032] Figure 2 It is a perspective structure diagram of the device of the present application.

[0033] Figure 3 It is an assembly structure diagram of the electrical connector and the connecting piece.

[0034] In the drawings: 1-dial, 11-hollow hole, 2-pointer, 21-latch, 3-fixing assembly, 31-fixing claw, 32-limiting block, 33-limiting rod, 34-first elastic member, 4-positioning assembly, 41-supporting rod, 42-positioning member, 43-second elastic member, 5-connecting piece fixing mechanism, 51-connecting shaft, 52-fixing shaft, 53-abutting head, 6-electrical connector, 61-slot, 7-connecting piece. DETAILED DESCRIPTION

[0035] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application.

[0036] Embodiment 1

[0037] As shown in Figure 1 and Figure 2 An electric connector connecting piece angle measuring device includes a dial mechanism and a connecting piece fixing mechanism 5; the dial mechanism and the connecting piece fixing mechanism 5 are connected; the dial mechanism includes a pointer 2 and a dial 1; the middle part of the pointer 2 is connected with the center of the dial 1, and the pointer 2 rotates on the dial 1; the dial 1 can also rotate with the middle part of the pointer 2 as the center; the pointer 2 is connected with the connecting piece fixing mechanism 5; the dial 1 away from the pointer 2 is provided with a fixing assembly 3 for fixing the electric connector 6 and a positioning assembly 4 for positioning the end surface center axis of the electric connector 6, and the side of the dial 1 close to the pointer 2 is also provided with a dial scale value along the circumferential direction of the dial 1; when the pointer 2 rotates, it will point to the corresponding dial scale value, and the angle deviation between the connecting piece 7 and the center axis of the electric connector 6 can be judged according to the pointed dial scale value; the accuracy of the dial scale value can be made according to the needs when the dial 1 is made; the fixing assembly 3 includes a plurality of fixing claws 31, and the plurality of fixing claws 31 are uniformly arranged along the circumferential direction of the dial 1; the positioning assembly 4 includes a positioning piece 42, and the positioning piece 42 is arranged on the dial 1.

[0038] Embodiment 2

[0039] Based on the basis of embodiment 1, as shown in Figure 2As shown, the fixing assembly 3 further comprises a limiting rod 33; the limiting rod 33 is arranged on the dial 1 along the radial direction of the dial 1; the limiting rod 33 is specifically arranged to have a length from the center of the dial 1 to the outer circumference of the dial 1; the fixing claw 31 is sleeved on the limiting rod 33, and the fixing claw 31 slides on the limiting rod 33, so that the fixing claw 31 is convenient for fixing the end of the electrical connector 6 of different sizes; the fixing claw 31 is L-shaped, and the claw part of the fixing claw 31 extends along the axial direction of the dial 1 and is perpendicular to the dial 1, so that the claw part of the fixing claw 31 extending out is convenient for fixing and clamping the electrical connector 6; one end of the limiting rod 33 is connected with the limiting block 32, and the other end of the limiting rod 33 is connected with the dial 1; the limiting block 32 limits the movement of the fixing claw 31, so as to prevent the fixing claw 31 from being damaged by falling off the dial 1 due to excessive movement; the limiting block 32 is fixedly arranged on the dial 1; the limiting block 32 and the fixing claw 31 are connected through the first elastic element 34; the first elastic element 34 is sleeved on the limiting rod 33; the first elastic element 34 provides clamping force for the fixing claw 31 when the fixing claw 31 clamps the electrical connector 6; when it is necessary to fix and clamp the electrical connector 6, the fixing claw 31 on the dial 1 is pushed away, at this time, the first elastic element 34 is in a compressed state, when the electrical connector 6 is started to be clamped, the fixing claw 31 is released, and because the first elastic element 34 starts to rebound due to compression, the fixing claw 31 clamps the electrical connector 6 at this time; because the electrical connector 6 is clamped, the first elastic element 34 is not in a completely rebounded state, so the spring is still in a compressed state, and the rebounding force generated by the spring is converted into a continuous clamping force of the fixing claw 31, so as to prevent displacement between the dial 1 and the end surface of the electrical connector 6.

[0040] As shown in the figure, Figure 2 As shown, a radial strip-shaped groove is arranged in the circumferential direction of the dial; one limiting rod 33 is arranged in each strip-shaped groove, and a limiting block 32 is arranged inside each strip-shaped groove; the limiting block 32 is arranged on the end part of the strip-shaped groove away from the center of the dial 1; there are three strip-shaped grooves, and the included angles between the three strip-shaped grooves are equal, each of which is 120 degrees; there are three limiting rods 33, so there are three fixing claws 31 on the dial 1; the main function of arranging the strip-shaped grooves on the dial 1 is to facilitate the sliding of the fixing claw 31 in the fixing assembly 3 in the grooves, so as to achieve the effect of clamping and fixing the electrical connector 6.

[0041] As shown in the figure, Figure 2As shown, the positioning assembly 4 also includes a support rod 41; the support rod 41 is arranged on the dial 1 along the radial direction of the dial 1, and the position of the support rod 41 corresponds to the zero scale value of the dial 1 scale value; the positioning member 42 is sleeved on the support rod 41, and the positioning member 42 is connected to the slot 61 opened on the electrical connector 6; the slot 61 is opened in the direction of the central axis of the end surface of the electrical connector 6; when the positioning member 42 is connected to the slot 61, the positioning assembly 4 of the dial mechanism is also positioned to the central axis of the end surface of the electrical connector 6, and the position of the central axis at this time also points to the 0 scale of the dial scale value on the dial 1; the positioning member 42 slides on the support rod 41; the support rod 41 is sleeved with a second elastic member 43 at one end close to the center of the dial 1; one end of the second elastic member 43 is connected to the positioning member 42, and the other end of the second elastic member 43 is connected to the dial 1; the first elastic member 34 and the second elastic member 43 are both springs; as shown Figure 2 and Figure 3 As shown, the positioning member 42 is made of metal material and can be fixedly matched with the slot 61 on the electrical connector 6; the second elastic member 43 provides elastic force for the positioning member 42 along the direction of the support rod 41, so that the positioning member 42 is more firmly fixed in the electrical connection slot 61; a hollow hole 11 is opened on the dial 1; the support rod 41 is provided on the hollow hole 11; as shown Figure 2 As shown, three hollow holes 11 are provided on the dial 1 , which are used to facilitate the installation of the positioning member 42 and reduce the weight of the dial 1 .

[0042] Example 3

[0043] Based on Example 1, Figure 2 As shown, the connector fixing mechanism 5 is arranged below the dial 1 mechanism, and the connector fixing mechanism 5 includes a connecting shaft 51 and an abutment assembly; the connecting shaft 51 is connected to the abutment assembly, and the connecting shaft 51 is connected to the bottom of the pointer 2; the abutment assembly abuts against the surface of the connector 7; the abutment assembly includes a fixed shaft 52 and an abutment head 53; the fixed shaft 52 and the abutment head 53 are connected, and the fixed shaft 52 is connected to the connecting shaft 51; the abutment head 53 abuts against the connector 7; the end of the abutment head 53 is provided with an abutment surface, and the surface of the abutment surface fits with the surface of the connector 7; the abutment surface is V-shaped, which can cooperate with the curved surface structure of the surface of the connector 7 to prevent rotation or sliding between the abutment head 53 and the connector 7 during measurement; a latch 21 is provided on the middle part of the pointer 2, and the latch 21 is connected to the bearing on the dial 1. The purpose of providing the latch 21 and the bearing is to enable both the pointer 2 and the dial 1 to rotate movably; the bearing is provided at the center of the dial 1.

[0044] Example 4

[0045] Based on Example 2 and Example 3, Figure 3As shown, when the connecting piece 7 is connected with the electric connector 6, as shown in Figure 1 As shown, at this time, the middle axis of the electric connector 6 is positioned by the positioning assembly 4 on the dial mechanism, and the electric connector 6 is fixed by the fixing assembly 3 on the dial mechanism; the connecting piece fixing mechanism 5 is abutted with the connecting piece 7; the dial scale value pointed by the pointer 2 on the dial mechanism 1 is read; if there is an included angle between the pointer 2 and the 0 scale on the dial 1, the middle axis of the electric connector 6 and the middle axis of the connecting piece 7 have an included angle, the fixed ring on the electric connector 6 needs to be rotated to adjust, so that the connecting piece 7 can continue to rotate, and the connection between the connecting piece 7 and the electric connector 6 is adjusted according to the angle of deviation, until there is no included angle between the pointer 2 and the 0 scale on the dial 1, at this time, the middle axis of the electric connector 6 and the middle axis of the connecting piece 7 have no included angle, and the adjustment is completed.

[0046] Embodiment 5

[0047] As shown in Figure 1 An electric connector connecting piece angle measurement method, comprising the following specific method steps:

[0048] S1: connect the positioning piece 42 of the positioning assembly 4 in the dial mechanism with the slot 61 of the electric connector 6, and fix the electric connector 6 by the plurality of fixing claws 31 of the fixing assembly 3 in the dial mechanism 1;

[0049] S2: abut the connecting piece fixing mechanism 5 with the connecting piece 7;

[0050] S3: read the dial scale value pointed by the pointer 2, judge the angle between the connecting piece 7 and the electric connector 6 according to the read dial scale value, and adjust the connection between the connecting piece 7 and the electric connector 6.

[0051] Before step S1, the electric connector 6 is connected and fixed with the connecting piece 7, so that the middle axis of the connecting piece 7 and the middle axis of the end surface of the electric connector 6 are visually in the same plane; therefore, before S1, the connection between the connecting piece 7 and the electric connector 6 is completed, at this time, the deviation angle between the middle axis of the connecting piece 7 and the middle axis of the end surface of the electric connector 6 is directly measured by using the device;

[0052] The dial mechanism is connected with the connecting piece fixing mechanism 5; the dial mechanism comprises the pointer 2 and the dial 1; the middle part of the pointer 2 is connected with the center of the dial 1, and the dial 1 rotates on the middle part of the pointer 2; the pointer 2 is connected with the connecting piece fixing mechanism 5 for fixing the connecting piece 7.

[0053] The dial 1 is provided with the fixing assembly 3 for fixing the electric connector 6 and the positioning assembly 4 for positioning the middle axis of the end surface of the electric connector 6, and the side of the dial 1 close to the pointer 2 is further provided with a dial scale value along the circumference of the dial 1.

[0054] The fixing assembly 3 comprises a plurality of fixing claws 31, and the plurality of fixing claws 31 are evenly arranged along the circumferential direction of the dial 1; the positioning assembly 4 comprises a positioning piece 42, and the positioning piece 42 is connected with the insertion slot 61 formed on the electric connector 6.

[0055] The above description is a detailed description of the preferred embodiments of the present application, but the embodiments are not intended to limit the patent application scope of the present application, and any changes or modifications within the technical spirit of the present application should be covered by the patent scope of the present application.

Claims

1. An electrical connector angle measuring device, characterized in that: The invention comprises a dial mechanism and a connector fixing mechanism (5); the dial mechanism and the connector fixing mechanism (5) are connected; the dial mechanism comprises a pointer (2) and a dial (1); the middle of the pointer (2) is connected to the center of the dial (1), and the pointer (2) rotates on the dial (1); the pointer (2) is connected to the connector fixing mechanism (5); a fixing component (3) for fixing an electric connector (6) and a positioning component (4) for positioning the central axis of the end surface of the electric connector (6) are provided on the side of the dial (1) away from the pointer (2), and a dial scale value is also provided on the side of the dial (1) close to the pointer (2) along the circumference of the dial (1); the fixing component (3) comprises a plurality of fixing components. The plurality of fixed claws (31) are evenly arranged along the circumferential direction of the dial (1); the positioning assembly (4) includes a positioning member (42), and the positioning member (42) is arranged on the dial (1); the fixing assembly (3) also includes a limiting rod (33); the limiting rod (33) is arranged on the dial (1) along the radial direction of the dial (1); the fixed claw (31) is sleeved on the limiting rod (33), and the fixed claw (31) slides on the limiting rod (33); one end of the limiting rod (33) is connected to the limiting block (32), and the other end of the limiting rod (33) is connected to the dial (1); the limiting block (32) and the fixed claw (31) are connected via a first elastic member (34); the first elastic member (34) is provided between the limiting block (32) and the fixed claw (31 ... An elastic member (34) is sleeved on the limit rod (33); the limit block (32) is fixedly arranged on the dial (1); the positioning assembly (4) also includes a support rod (41); the support rod (41) is arranged on the dial (1) along the radial direction of the dial (1), and the position of the support rod (41) corresponds to the zero scale value of the dial scale value; the positioning member (42) is sleeved on the support rod (41), and the positioning member (42) is connected to a slot (61) provided on the electrical connector (6); the slot (61) is provided in the direction of the central axis of the end surface of the electrical connector (6); the positioning member (42) slides on the support rod (41); the support rod (41) is located near the center of the dial (1) One end of the center is sleeved with a second elastic member (43); one end of the second elastic member (43) is connected to the positioning member (42), and the other end of the second elastic member (43) is connected to the dial (1); the connecting member fixing mechanism (5) includes a connecting shaft (51) and an abutting assembly; the connecting shaft (51) is connected to the abutting assembly, and the connecting shaft (51) is connected to the bottom of the pointer (2); the abutting assembly abuts against the surface of the connecting member (7); the abutting assembly includes a fixed shaft (52) and an abutting joint (53); the fixed shaft (52) and the abutting joint (53) are connected, and the fixed shaft (52) is connected to the connecting shaft (51); the abutting joint (53) abuts against the connecting member (7).

2. The electrical connector angle measuring device according to claim 1, wherein: The dial (1) is provided with radial strip-shaped grooves in the circumferential direction.

3. The electrical connector angle measuring device according to claim 2, wherein: A limiting rod (33) is provided in each strip-shaped groove, and a limiting block (32) is provided inside each strip-shaped groove; the limiting block (32) is provided on the end of the strip-shaped groove away from the center direction of the dial (1).

4. The electrical connector angle measuring device according to claim 3, wherein: There are three strip-shaped grooves, and the angles between the three strip-shaped grooves are equal; there are three limiting rods (33).

5. The electrical connector angle measuring device according to claim 1, wherein: A hollow hole (11) is provided on the dial (1); a support rod (41) is provided on the hollow hole (11).

6. The electrical connector angle measuring device according to claim 1, characterized in that: A latch (21) is provided on the middle of the pointer (2), and the latch (21) is connected to a bearing on the dial (1); the bearing is provided at the center of the dial (1).

7. The electrical connector angle measuring device according to claim 1, characterized in that: The first elastic member (34) and the second elastic member (43) are both springs.

8. A method for measuring the angle of an electrical connector, characterized in that: The method is implemented based on the electrical connector connection member angle measuring device according to any one of claims 1 to 7, and includes the following specific method steps: S1: Connecting the positioning member (42) of the positioning component (4) in the dial mechanism to the slot (61) of the electrical connector (6), and fixing the electrical connector (6) using a plurality of fixing claws (31) of the fixing component (3) in the dial mechanism; S2: abutting the connecting member fixing mechanism (5) against the connecting member (7); S3: Reading the dial scale value pointed by the pointer (2), judging the angle between the connecting member (7) and the electrical connector (6) based on the read dial scale value, and then adjusting the connection between the connecting member (7) and the electrical connector (6).

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