Twist pin connector terminal leveling tool

Abstract

The invention discloses a cable pin connector terminal leveling tool, and belongs to the technical field of connector assembly tools, the cable pin connector terminal leveling tool comprises a fixing plate, pressing seats are horizontally arranged on the two sides of the fixing plate, a row of positioning pipes with the same height are vertically and upwards inserted into the surface of a bottom plate between the two pressing seats, plugs are inserted into the inner walls of the positioning pipes, and each plug comprises a shell. A wire harness and a base are sequentially arranged in the shell from top to bottom, a twist needle vertically arranged downwards penetrates through the base and comprises a needle body and a needle tip from top to bottom, a contact ball penetrates through the needle tip, the outer diameter of the needle body is consistent with the outer diameter of the positioning pipe, one end of the needle body is fixedly connected with the wire harness, and the other end of the needle body is fixedly connected with the wire harness. The needle point is connected to the inner wall of the positioning pipe in a sliding mode, the contact ball is connected to the inner wall of the positioning pipe in an interference fit mode, after the terminal leveling device is applied, the terminal leveling process is simple, efficiency is high, and the assembling efficiency and the height size consistency rate of a follow-up connector can be greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of connector assembly tooling, in particular to a twist pin connector terminal flattening tooling. Background Art

[0002] Connector terminals are an accessory product used to achieve electrical connections and belong to the category of connectors. With the improvement of industrial automation and the increasingly stringent requirements of industrial control, the use of terminal blocks has gradually increased. Terminal blocks are not only widely used in industry, but also in the electronics industry. The scope of use is becoming more and more extensive, and the types are also increasing.

[0003] During the assembly process of the connector terminal, due to the cumulative error of the height dimensions of the twist pin assembly products under various parts, the height dimensions of the products need to be assisted by the height fixture to meet the height dimension requirements of the products. The current height fixture will have height dimension deviations after the height is adjusted, baked and the wire is pulled, and the consistency of the height dimensions cannot be achieved (mainly reflected in the plug end), which has seriously affected the production efficiency and quality consistency of the products.

[0004] The height of the connector contacts affects the product docking performance and product appearance quality. Therefore, it is necessary to develop a fixture that does not require height adjustment to improve product production efficiency and height consistency. Summary of the invention

[0005] The purpose of the present invention is to overcome the above-mentioned background technical difficulties and provide a terminal leveling tool for a twist pin connector with simple operation and high terminal leveling degree.

[0006] In order to achieve the above purpose, the technical solution adopted is: a flattening tool for twist pin connector terminals, comprising a fixing plate, with pressure seats horizontally arranged on both sides of the fixing plate, and a row of positioning tubes with the same height inserted vertically upward on the bottom plate surface between the two pressure seats, The inner wall of the positioning tube is plugged with a plug, the plug includes a shell, a wiring harness and a base are arranged in the shell from top to bottom, a twist needle arranged vertically downward is penetrated in the base, the twist needle includes a needle body and a needle tip from top to bottom, a contact ball is penetrated by the needle tip, the outer diameter of the needle body is consistent with the outer diameter of the positioning tube, the outer diameter of the needle body is consistent with the outer diameter of the positioning tube, one end of the needle body is fixedly connected to the wiring harness, and the other end is connected to an end of the positioning tube away from the fixed plate, the needle tip is slidably connected to the inner wall of the positioning tube, and the contact ball is interference connected to the inner wall of the positioning tube; A slide groove is provided in each of the pressure seats, and the sliding direction of the slide groove is perpendicular to the direction in which the positioning tube is discharged. A slider is slidably connected in each of the slide grooves. The outer walls of the two pressure seats close to the ends of the positioning tube are provided with slots horizontally arranged with the position of the positioning tube. Pressure plates are inserted in the two slots, and the two ends of the pressure plates pass through the slots and connect with the outer wall of the slider. When the needle body abuts the positioning tube, the bottom surface of the pressure plate connects with the top end of the needle body.

[0007] Furthermore, a base plate is fixedly connected to the lower part of the fixed plate by multiple bolts, a clamp is provided under the base plate, a placement groove for placing the base plate is opened on the surface of the clamp, and the clamp is provided with upwardly extending and height-adjustable adjustment rods on both sides of the fixed plate pressure seat, and the ends of two adjustment rods are connected to wire cross bars, and the wiring harness is evenly discharged onto the guide cross bar.

[0008] Furthermore, both ends of the slide groove of the pressure seat are provided with limit grooves for limiting the sliding of the slider, the outer wall of the slider close to the positioning tube end is connected to a pressure block mounted on the surface of the slot, the outer walls at both ends of the pressure plate are slidably connected to both sides of the inner wall of the slot, and the height of the two ends of the pressure plate is consistent with the depth of the slot.

[0009] Furthermore, the outer wall of the base away from the positioning tube end and the inner wall of the shell are glue-filling cavities, and the bottom surface of the pressure plate is provided with a stepped avoidance groove that avoids the top of the shell.

[0010] Further, the steps of using the twist pin connector terminal leveling tool are as follows: ① Glue the base: bond the outer wall of the base to the inner wall of the shell and completely cure; ② Install the twist needles: Place the base plate in the fixture and insert multiple twist needles into the base one by one; ③ Primer: Apply a layer of primer under the step of the twist needle, separate the wire harnesses by row, press the pressure plate on the needle end face of the twist needle close to the wire harness end, slide the slider so that the pressure block on the slider presses the slot and then locks the pressure plate; ④Curing: Hang the wire harness on the conductor crossbar and put the fixture into the oven for curing; ⑤ Check the height and eccentricity of the twist needle: slide the slider, take out the pressing plate, and check the height of the product and the eccentricity of the twist needle; ⑥Potting: After the height and eccentricity are qualified, the glue cavity will be fully potted.

[0011] Furthermore, the length of the positioning tube is greater than the length of the needle tip.

[0012] Furthermore, the positioning tube is arranged on the surface of the bottom plate and then penetrates the fixing plate.

[0013] The beneficial effects of adopting the above scheme are as follows: when using this type of flattening tool for the terminals of the twisted pin connector, the twisted pin of the plug is inserted into the positioning tube on the fixed plate, and then the two ends of the pressure plate are respectively inserted into the slots of the pressure seats at both ends of the fixed plate, and the slider is slid until the outer wall of the pressure plate is connected. At this time, the bottom end of the needle body of the twisted pin is in contact with the outer wall of the top of the positioning tube, and the needle tip is inserted into the inner wall of the positioning tube. The contact ball on the needle tip is inserted into the inner wall of the positioning tube through interference. At this time, the hand presses the pressure plate, and the outer wall of the needle body is in contact with the positioning tube, so the needle body will not be able to move downward again. Since the height of the positioning tubes is consistent, the overall flatness of the needle body can be guaranteed while pressing the pressure plate. At this time, the wiring harness is injected with glue, and then the pressure plate is taken out, and the overall flattening of the terminals of the twisted pin connector is completed. After application, the terminal flattening process is simple and efficient, which can greatly improve the assembly efficiency and the high and low size consistency rate of subsequent connectors. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the flattening tool for the twist pin connector terminal of the present invention.

[0015] Figure 2 for Figure 1 Top view of the .

[0016] Figure 3 for Figure 1 Schematic diagram of the structure of the twist pin connector terminal leveling tool after the slider is removed.

[0017] Figure 4 for Figure 1 Schematic diagram of the structure of the twist pin connector terminal leveling tool after removing the shell.

[0018] Figure 5 for Figure 4 Schematic diagram of the structure of the twist pin connector terminal leveling tool after the base is removed.

[0019] Figure 6 for Figure 5 Schematic diagram of the structure of part A.

[0020] Figure 7 A schematic diagram of the fixture structure.

[0021] Figure 8 This is a schematic diagram of the structure of the bottom plate, the fixing plate, the twist pins and the positioning tube in the third embodiment.

[0022] Fig. 9 for Figure 8 Top view of the .

[0023] Fig.10 It is a structural schematic diagram of the leveling tool in Example 7.

[0024] In the figure, 1, pressure seat; 2, bottom plate; 3, fixing plate; 4, slide groove; 5, slider; 6, pressure plate; 7, wiring harness; 8, housing; 9, glue filling chamber; 10, positioning tube; 11, needle body; 12, contact ball; 13, needle tip; 14, wire cross bar; 15, adjustment rod; 16, avoidance groove; 17, clamp; 18, placement groove; 19, sliding plate; 20, sliding groove; 21, base; 22, slot; 23, operation panel; 24, positioning block; 25, cushion block; 26, plug hole; 27, socket. DETAILED DESCRIPTION

[0025] The technical scheme of the present invention is clearly and completely described below in conjunction with the specific embodiments of the present invention. The described embodiments are only part of the embodiments of the present invention, not all. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0026] Embodiment 1 like Figure 1-6 A flattening tool for twist pin connector terminals, comprising a fixing plate 3, with press seats 1 arranged horizontally on both sides of the fixing plate 3, and a row of positioning tubes 10 with the same height inserted vertically upward on the surface of the bottom plate 2 between the two press seats 1, A plug is inserted into the inner wall of the positioning tube 10, and the plug includes a shell 8, and a wiring harness 7 and a base 21 are arranged in the shell 8 from top to bottom in sequence. A twisted needle arranged vertically downward is penetrated in the base 21, and the twisted needle includes a needle body 11 and a needle tip 13 from top to bottom, and a contact ball 12 is penetrated by the needle tip 13. The outer diameter of the needle body 11 is consistent with the outer diameter of the positioning tube 10, and the outer diameter of the needle body 11 is consistent with the outer diameter of the positioning tube 10. One end of the needle body 11 is fixedly connected to the wiring harness 7, and the other end is connected to the end of the positioning tube 10 away from the fixing plate 3. The needle tip 13 is slidably connected to the inner wall of the positioning tube 10, and the contact ball 12 is interference connected to the inner wall of the positioning tube 10; A slide groove 4 is opened in each of the pressure seats 1, and the sliding direction of the slide groove 4 is set perpendicular to the discharge direction of the positioning tube 10. A slider 5 is slidably connected in each of the slide grooves 4. The outer walls of the two pressure seats 1 close to the positioning tube 10 are opened with slots 22 set horizontally with the position of the positioning tube 10. Press plates 6 are inserted in the two slots 22. The two ends of the press plate 6 pass through the slots 22 and connect with the outer wall of the slider 5. When the needle body 11 abuts against the positioning tube 10, the bottom surface of the press plate 6 connects with the top of the needle body 11.

[0027] During specific implementation, both ends of the slide groove 4 of the pressure seat 1 are provided with limit grooves for limiting the sliding of the slider 5, and the outer wall of the slider 5 close to the end of the positioning tube 10 is connected to a pressure block mounted on the surface of the slot 22, and the outer walls at both ends of the pressure plate 6 are slidably connected to both sides of the inner wall of the slot 22, and the height of the two ends of the pressure plate 6 is consistent with the depth of the slot 22.

[0028] In specific implementation, the outer wall of the base 21 away from the end of the positioning tube 10 and the inner wall of the shell 8 form a glue injection cavity 9, and the bottom surface of the pressing plate 6 is provided with a stepped avoidance groove 16 that avoids the top of the shell 8.

[0029] In the specific implementation, in order to ensure the stability of the connection between the base 21 and the shell 8, the base 21 and the shell 8 are first bonded and cured, and then the twist needle is inserted for primer and the tail end face of the contact piece is pressed with the pressing plate 6 to completely cure the primer at one time.

[0030] The specific implementation method is as follows: When this type of twist pin connector terminal leveling tool is in use, the twist pin of the plug is inserted into the positioning tube 10 on the fixed plate 3, and then the two ends of the pressure plate 6 are respectively inserted into the slots 22 of the pressure seat 1 at both ends of the fixed plate 3, and the slider 5 is slid until it is connected to the outer wall of the pressure plate 6. At this time, the bottom end of the needle body 11 of the twist pin is in contact with the outer wall of the top of the positioning tube 10, and the needle tip 13 is inserted into the inner wall of the positioning tube 10. The contact ball 12 on the needle tip 13 is inserted into the inner wall of the positioning tube 10 with interference fit. At this time, the pressure plate 6 is pressed by hand. Since the outer wall of the needle body 11 is in contact with the positioning tube 10, the needle body 11 will not be able to move downward again. Since the height of the positioning tube 10 is consistent, the overall leveling of the needle body 11 can be guaranteed while pressing the pressure plate 6. At this time, the wiring harness 7 is injected with glue, and then the pressure plate 6 is taken out, and the overall leveling work of the terminal of the twist pin connector is completed.

[0031] Through the action of the positioning tube 10 and the pressing plate 6, the two end surfaces of the needle body 11 are pressed after the wire and then the twist needle are installed in the plug, ensuring that the height of the twist needle is consistent after high-temperature curing, thereby achieving the purpose of no height adjustment.

[0032] The contact head of the twist needle is inserted into the positioning tube 10 through interference fit, and the positive pressure generated by the fatness of the twist needle and the vertical processing of the wire ensure that the twist needle is always in the center of the hole after solidification, thereby achieving the purpose of no deviation correction.

[0033] After overall application, the terminal leveling process is simple and efficient, which can greatly improve the assembly efficiency and the high and low size consistency of subsequent connectors.

[0034] Embodiment 2 On the basis of the first embodiment, the applicant takes into account that when the wiring harness 7 is subsequently formed in the plug, the twist pins may be pulled, resulting in the subsequent height inconsistency of the twist pins. Therefore, the applicant takes into account the above-mentioned problem, such as Figure 7The applicant has fixedly connected a base plate 2 under the fixing plate 3 by multiple bolts, and a clamp 17 is provided under the base plate 2. A placement groove 18 for placing the base plate 2 is opened on the surface of the clamp 17. The clamp 17 is provided with upwardly extending and height-adjustable adjustment rods 15 on both sides of the fixing plate 3 pressure seat 1. The ends of the two adjustment rods 15 are connected to the wire cross bars 14, and the wire harness 7 is evenly discharged to the guide cross bar.

[0035] In the specific implementation, the bottom plate 2 is placed in the placement groove 18, and then the wire harness 7 is arranged on the wire cross bar 14 during the shaping process and the pressing process in the first embodiment, ensuring that the wire harness 7 is perpendicular to the wire cross bar 14, and the twist needle can be ensured to be centered after baking and curing. On the basis of the first embodiment, the terminal leveling efficiency is higher and the effect is better.

[0036] Embodiment 3 On the basis of the first and second embodiments, the applicant considers that the twist needle may have a slight offset at the end of the base 21, and the tilt calibration effect of the first and second embodiments is not good for this situation. In order to further ensure the tilt effect of the needle body 11, as shown in FIG. Figure 8 and Fig. 9 By pulling the operating plate 23, the operating plate 23 drives the sliding plate 19 to slide in the sliding groove 20. During the pulling process, the needle tip 13 and the contact ball 12 of the twist needle are inserted into the inner wall of the positioning tube 10. At this time, the positioning tube 10 will drive the inclined sleeve to be subjected to a certain force, causing it to twist to a certain extent. After the operating plate 23 is reset, the twist needle is basically vertical. Compared with the second embodiment, the terminal leveling effect is better.

[0037] Embodiment 4 On the basis of the third embodiment, in order to consider the reset effect of the sliding plate 19 after sliding, the applicant connects a reset mechanism between the outer wall of the sliding plate 19 on one side of the sliding direction in the sliding groove 20 and the inner wall of the sliding groove 20, and the reset mechanism is a spring. After application, when the operating plate 23 is released, the spring will drive the operating plate 23 to automatically reset, making the operation simpler.

[0038] Embodiment 5 On the basis of the third and fourth embodiments, the applicant considers that when adjusting the reset of the contact head, it may be better to pull the sliding plate 19 left and right, therefore, after the sliding plate 19 is vertically arranged below the twist pin, the sliding plate 19 is horizontally displaced 0.03-0.5mm left and right on the sliding groove 20, and reset springs are connected to both ends of the sliding plate 19 and the inner wall of the sliding groove 20. After this arrangement, it can ensure that the adjustment tilt effect of the twist pin is better, the overall terminal leveling effect is better, and the operability is also simple.

[0039] Embodiment 6 The steps for using the twist pin connector terminal leveling tool are as follows: ① Bonding the base 21: bonding the outer wall of the base 21 to the inner wall of the housing 8 and completely curing; ② Installing the twist needles: placing the bottom plate 2 in the fixture 17, and inserting a plurality of twist needles into the base 21 in sequence; ③ Primer: Apply a layer of primer under the step of the twist needle, separate the wire harness 7 by row, press the end face of the needle body 11 of the twist needle close to the end of the wire harness 7 with the pressing plate 6, slide the slider 5 so that the pressing block on the slider 5 presses the slot 22 and then locks the pressing plate 6; ④ Curing: hang the wire harness 7 on the conductor crossbar 14 and put the fixture 17 into an oven for curing; ⑤ Check the height and eccentricity of the twist needle: slide the slider 5, take out the pressing plate 6, and check the height of the product and the eccentricity of the twist needle; ⑥ Potting: After the height dimensions and eccentricity are qualified, the potting cavity 9 is completely potted.

[0040] In a specific implementation, two avoidance grooves 16 are formed at the positioning end of the pressure plate 6 to prevent interference with the housing 8 during positioning.

[0041] In the specific implementation, the slot spacing of the slots 22 at both ends of the pressing seat 1 is set according to the arrangement spacing of the wiring harness 7, and the height positioning dimension of the pressing plate 6 is set according to the end surface dimension of the needle body 11 pressed after the plug is assembled.

[0042] Embodiment 7 In the application process of the above embodiment, the applicant indicates that the tooling in the present invention is not only suitable for leveling the height of the terminal at the twist pin plug end, but also can be used to level the socket 27 end connected to the twist pin plug, such as Fig.10 A terminal leveling tool for a twist pin connector comprises a bottom plate 2, a press seat 1 is provided at the left and right ends of the bottom plate 2, a pad 25 is provided on the surface of the bottom plate 2, a socket 27 is provided on the pad 25, and a plurality of vertical downward plug holes 26 are provided on the outer wall of the pad 25, and the height of the positioning block 24 is slightly lower than that of the positioning block 24, and the outer wall of the positioning block 24 is connected to the inner wall of the socket 27, and the top surface of the pad 25 is connected to the plug holes 26 in the socket 27, and a pressure plate 6 is pressed on one end of the plurality of plug holes 26 away from the pad 25, and the two ends of the pressure plate 6 are inserted in the press seat 1, and a slider 5 for pressing the surface of the pressure plate 6 is provided on the press seat 1.

[0043] After the overall setting, the principle of the tooling is basically the same as the principle of the tooling in the above embodiment, except that by setting the pad 25, the terminal of the plug hole 26 in the socket 27 can be leveled when the pressing block is pressed. At the same time, when the socket 27 is inserted into the pad 25, the relative position of the socket 27 and the pad 25 can be ensured to be faster and more accurate through the setting of the positioning block 24, making the overall leveling process more stable and efficient.

[0044] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

[0045] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A flattening tool for twist pin connector terminals, characterized by: It comprises a fixing plate (3), with pressure seats (1) being horizontally arranged on both sides of the fixing plate (3), and a row of positioning tubes (10) having the same height being inserted vertically upward on the surface of the bottom plate (2) between the two pressure seats (1). A plug is inserted into the inner wall of the positioning tube (10), and the plug comprises a shell (8), wherein a wiring harness (7) and a base (21) are arranged in sequence from top to bottom in the shell (8), and a twisted needle arranged vertically downward is penetrated in the base (21), and the twisted needle comprises a needle body (11) and a needle tip (13) from top to bottom, and a contact ball (12) is penetrated in the needle tip (13), and the outer diameter of the needle body (11) is consistent with the outer diameter of the positioning tube (10), and the outer diameter of the needle body (11) is consistent with the outer diameter of the positioning tube (10), one end of the needle body (11) is fixedly connected to the wiring harness (7), and the other end is connected to an end of the positioning tube (10) away from the fixing plate (3), the needle tip (13) is slidably connected to the inner wall of the positioning tube (10), and the contact ball (12) is interference-connected to the inner wall of the positioning tube (10); A slide groove (4) is provided in each of the pressure seats (1), and the sliding direction of the slide groove (4) is perpendicular to the discharge direction of the positioning tube (10). A slider (5) is slidably connected in each of the slide grooves (4). The outer walls of the two pressure seats (1) close to the positioning tube (10) are provided with slots (22) which are arranged horizontally with the position of the positioning tube (10). Press plates (6) are inserted in the two slots (22). The two ends of the press plates (6) pass through the slots (22) and are connected to the outer wall of the slider (5). When the needle body (11) abuts against the positioning tube (10), the bottom surface of the press plate (6) is connected to the top of the needle body (11).

2. The twist pin connector terminal leveling tool according to claim 1, characterized in that: A base plate (2) is fixedly connected to the fixing plate (3) by a plurality of bolts, a clamp (17) is provided below the base plate (2), a placement groove (18) for placing the base plate (2) is provided on the surface of the clamp (17), and the clamp (17) is provided with adjustment rods (15) extending upward and adjustable in height on both sides of the fixing plate (3) pressure seat (1), the ends of the two adjustment rods (15) are connected to wire cross bars (14), and the wire harness (7) is evenly discharged onto the guide cross bar.

3. The twist pin connector terminal leveling tool according to claim 2, characterized in that: Limiting grooves for limiting the sliding movement of the slider (5) are provided at both ends of the slide groove (4) of the pressure seat (1); the outer wall of the slider (5) close to the end of the positioning tube (10) is connected to a pressure block mounted on the surface of the slot (22); the outer walls at both ends of the pressure plate (6) are slidably connected to the inner walls of the slot (22); the heights of the two ends of the pressure plate (6) are consistent with the depth of the slot (22).

4. The flattening tool for twist pin connector terminals according to claim 3, characterized in that: The outer wall of the base (21) away from the end of the positioning tube (10) and the inner wall of the shell (8) form a glue injection cavity (9), and the bottom surface of the pressing plate (6) is provided with a stepped avoidance groove (16) that avoids the top of the shell (8).

5. The twist pin connector terminal leveling tool according to claim 4, characterized in that: The steps for using the twist pin connector terminal leveling tool are as follows: ① Bonding the base (21): bonding the outer wall of the base (21) to the inner wall of the housing (8) and completely curing; ② Installing the twist needles: placing the bottom plate (2) in the fixture (17), and inserting a plurality of twist needles into the base (21) in sequence; ③ Primer: Apply a layer of primer under the step of the twist needle, separate the wire harness (7) in rows, press the end face of the needle body (11) of the twist needle close to the end of the wire harness (7) with the pressing plate (6), slide the slider (5) so that the pressing block on the slider (5) presses the slot (22) and then locks the pressing plate (6); ④ Curing: hang the wire harness (7) on the conductor crossbar (14), and put the fixture (17) into an oven for curing; ⑤ Check the height and eccentricity of the twist needle: Slide the slider (5), remove the pressing plate (6), and check the height of the product and the eccentricity of the twist needle; ⑥ Potting: After the height dimensions and eccentricity are qualified, the potting cavity (9) is completely potted.

6. The twist pin connector terminal leveling tool according to claim 1, characterized in that: The length of the positioning tube (10) is greater than the length of the needle tip (13).

7. The twist pin connector terminal leveling tool according to claim 2, characterized in that: The positioning tube (10) is arranged on the surface of the bottom plate (2) and then penetrates the fixing plate (3).

8. The twist pin connector terminal leveling tool according to claim 7, characterized in that: The bottom plate (2) is provided with a sliding groove (20) on its surface, a sliding plate (19) is slidably connected to the sliding groove (20), the positioning plate is fixed to the surface of the sliding plate (19), the sliding length of the sliding plate (19) in the sliding groove (20) is 0.05-0.2 mm, an operating plate (23) is connected to one side of the sliding plate (19), and a through hole is provided on the surface of the fixed plate (3) for the end of the positioning plate to pass through.

9. The twist pin connector terminal leveling tool according to claim 8, characterized in that: A reset mechanism is connected between an outer wall of the sliding plate (19) on one side in the sliding direction of the sliding groove (20) and an inner wall of the sliding groove (20), and the reset mechanism is a spring.

10. The twist pin connector terminal leveling tool according to claim 9, characterized in that: The sliding plate (19) is horizontally displaced 0.03-0.5 mm left and right on the sliding groove (20), and return springs are connected to both ends of the sliding plate (19) and the inner wall of the sliding groove (20).

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