A positioning device for crimping a cable terminal

Abstract

The utility model discloses a kind of positioning devices for crimping cable terminal, comprising: base, fixed seat, set on base, for compressing cable;First locating seat, set on base, with first mating surface;Second locating seat, set on base, with second mating surface;The first mating surface and second mating surface are used to butt against terminal, the plane where first mating surface and second mating surface are located intersects. Through the positioning device of the utility model, before crimping terminal, first through the angle intersection of first mating surface and second mating surface, the angle after the crimping of two terminals is forcedly restrained, the accurate control to the terminal angle of two ends of cable is realized, the cable is twisted due to the angle difference of motor and gear box installation surface, and then the effect that metal terminal is not stressed is reached after cable fastening, wiring is smooth without twisting.

Description

Technical Field

[0001] This utility model belongs to the field of cable terminal crimping devices, specifically, it relates to a positioning device for crimping cable terminals. Background Technology

[0002] Connecting cables are required between the motor and gearbox on the bogie of a rail vehicle to ensure grounding protection and electromagnetic compatibility. The connecting cables are fixed by bolting the metal terminals at both ends of the cable to the bolt posts on the surface of the housing. The contact surfaces between the terminals and the grounding posts must be specified according to the process requirements. The bolt posts on the motor and gearbox housings are on different planes in the longitudinal direction. The terminals on the gearbox side are tightened longitudinally, and the terminals on the motor side are tightened laterally.

[0003] After crimping the metal terminals of the connecting cable with crimping pliers, if the contact surfaces of the two terminals do not reach the specified angle, the insulation layer and internal core wires of the installed cable will be twisted, and the twisting force will be transmitted to the terminal. In severe cases, it may cause gaps or creases to form between the contact surface of the terminal tail and the grounding post. During the operation of rail vehicles, due to high-speed operation and high-frequency vibration of the bogie, coupled with the large diameter of the connecting cable causing stress concentration at the terminal, the above situation may cause the terminal tail to bear fatigue stress for a long time, thus posing a risk of breakage.

[0004] Currently, the main solution for connecting cables is to rely on manual cutting and crimping. However, this method has the following drawbacks:

[0005] Due to inconsistencies in manual operation, deviations in the crimping angle may occur. These subtle differences are difficult to detect in subsequent quality inspections, but they will gradually appear during product use, eventually leading to connection failure or performance degradation, thus affecting the reliability of the final product, generating waste and defective products, resulting in material waste and increased manufacturing costs.

[0006] During terminal crimping operations, relying solely on the operator's visual judgment to determine whether the preset crimping angle has been reached is prone to deviations, which can negatively impact the final connection quality.

[0007] In view of this, this utility model is hereby proposed. Utility Model Content

[0008] In order to solve at least some of the problems mentioned above, the first utility model objective of this utility model is to provide a positioning device for crimping cable terminals, which can improve the accuracy of the crimping angle of the terminal on the cable.

[0009] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0010] A positioning device for crimping cable terminals, comprising:

[0011] Base

[0012] A mounting bracket, mounted on the base, is used to clamp the cable.

[0013] The first positioning seat is set on the base and has a first mating surface;

[0014] The second positioning seat is set on the base and has a second mating surface;

[0015] The first mating surface and the second mating surface are used to abut against the terminal, and the planes on which the first mating surface and the second mating surface are located intersect.

[0016] In some embodiments, the first mating surface is perpendicular to the upper surface of the base, and the second mating surface is parallel to the upper surface of the base.

[0017] In some embodiments, the base is provided with a first linear guide rail extending along a first direction, and the first positioning seat and the second positioning seat are disposed on both sides of the fixed seat along the first direction, and at least one of the first positioning seat and the second positioning seat is slidably connected to the first linear guide rail.

[0018] The first positioning seat is slidably connected to the first linear guide rail, and the second positioning seat is fixedly connected to the base;

[0019] A first slider is slidably connected to the first linear guide rail, and the first positioning seat is connected to the first slider.

[0020] In some embodiments, the first positioning seat is provided with a positioning groove for placing a terminal, the groove wall on the upper surface of the vertical base of the positioning groove is configured as the first mating surface, the first mating surface is provided with a first positioning hole, and a first positioning post is inserted into the first positioning hole.

[0021] The first positioning hole extends in a direction perpendicular to the first mating surface;

[0022] The positioning groove is provided with a second positioning hole, which penetrates the positioning groove along the direction perpendicular to the upper surface of the base. A pin is inserted into the second positioning hole, and a receiving space for clamping the terminal is formed between the pin and the first mating surface.

[0023] In some embodiments, the top surface of the second positioning seat is configured as the second mating surface, and a second positioning hole is provided on the second mating surface, and a second positioning pin is inserted into the second positioning hole;

[0024] The second positioning hole extends in a direction perpendicular to the second mating surface.

[0025] Furthermore, the fixing seat includes a fixing groove with an opening and a clamping clamp disposed at the opening, the clamping clamp being used to adjust the diameter of the fixing groove.

[0026] In some embodiments, the base is provided with a wire clamping support for splicing cables, a wire clamping tool is connected to the wire clamping support, a second slider is slidably connected to the first linear guide rail, and the wire clamping support is connected to the second slider.

[0027] Furthermore, the base is provided with a second linear guide rail extending along the first direction, and a third slider is slidably connected to the second linear guide rail. The end of the wire clamp away from the wire clamping support is connected to the third slider.

[0028] In some embodiments, the wire crimping support has a channel for the terminal to pass through, and the jaws of the wire crimping pliers engage with the channel;

[0029] The wire clamping support includes a base plate and two limiting posts spaced apart on the top surface of the base plate. The base plate and the limiting posts form the channel, and a clearance opening is formed between the two limiting posts for the jaws of the wire clamping pliers to extend into the channel.

[0030] The top surface of the base plate is provided with a clearance groove, which is located between two limiting posts and is used to receive the jaws of the crimping pliers.

[0031] Furthermore, the base is provided with a scale extending along a first direction.

[0032] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art.

[0033] The positioning device of this utility model, before crimping the terminals, firstly through the first mating surface and second mating surface with intersecting angles, forcibly constrains the angle of the two terminals after crimping, thereby achieving accurate control of the angle of the terminals at both ends of the cable, reducing cable twisting caused by the angle difference between the motor and gearbox mounting surfaces, and thus achieving the effect of smooth cable routing without twisting after cable fastening and no stress on the metal terminals.

[0034] The positioning device of this utility model adapts to cables of different specifications through a sliding positioning seat. Before crimping, it ensures that the cable is kept straight and that the terminals at both ends are always in close contact with the mating surface, avoiding the terminals from tilting due to the cable length deviation and reducing the impact on the positioning angle of the cable terminals.

[0035] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0036] The accompanying drawings, as part of this utility model, are used to provide a further understanding of the present utility model. The illustrative embodiments and descriptions of the present utility model are used to explain the present utility model, but do not constitute an undue limitation of the present utility model. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0037] Figure 1 This is a perspective view of the positioning device for crimping cable terminals provided in an embodiment of the present invention;

[0038] Figure 2 This is a top view of the positioning device for crimping cable terminals provided in this embodiment of the present invention;

[0039] Figure 3 This is a front view of the positioning device for crimping cable terminals provided in this embodiment of the present invention;

[0040] Figure 4 This is a right view of the positioning device for crimping cable terminals provided in this embodiment of the present invention;

[0041] Figure 5 This is a schematic diagram of the structure after crimping terminals onto both ends of the cable according to an embodiment of the present invention.

[0042] In the picture:

[0043] 1. Base;

[0044] 2. Fixing base; 21. Fixing slot; 22. Clamping pliers;

[0045] 3. First positioning seat; 31. First mating surface; 32. Positioning groove; 33. First positioning hole; 34. First positioning pin; 35. Pin;

[0046] 4. Second positioning seat; 41. Second mating surface; 42. Second positioning hole; 43. Second positioning pin;

[0047] 5. First linear guide rail; 51. First slider; 52. Second slider;

[0048] 6. Wire clamp support; 61. Wire clamping pliers; 62. Base plate; 63. Limiting post; 64. Clearance groove;

[0049] 7. Second linear guide; 71. Third slider;

[0050] 8. Scale;

[0051] 9. Cables;

[0052] 10. Terminal.

[0053] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0054] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0055] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0056] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0057] It should be noted that a connecting cable is required to connect the motor and gearbox on the bogie of a rail vehicle. (See [reference needed]). Figure 5 Both ends of the connecting cable 9 are crimped with terminals 10. Terminals 10 are generally made of metal and have a wiring end and a contact end. The wiring end has a circular wiring chamber to accommodate the circular cable end. The contact end is flat and has a through hole. The flat contact end facilitates contact with the wall of the motor housing or gearbox. The through hole, along with screws, studs, or other mounting hardware, secures the contact end to the wall of the motor housing or gearbox. For simplicity, the angles of the terminals described below refer to the angle between the plane of the contact end of the terminal and the upper surface of the base.

[0058] To improve the accuracy of the crimping angle when crimping terminals onto cables, please refer to... Figures 1 to 5This utility model provides a positioning device for crimping cable terminals, including a base 1, a fixing seat 2, a first positioning seat 3, and a second positioning seat 4. The fixing seat 2 is disposed on the base 1 and is used to crimp the cable 9. The first positioning seat 3 is disposed on the base 1 and has a first mating surface 31. The second positioning seat 4 is disposed on the base 1 and has a second mating surface 41. The first mating surface 31 and the second mating surface 41 are used to abut the terminal, and the planes containing the first mating surface 31 and the second mating surface 41 intersect.

[0059] Furthermore, the base 1 is made of rigid metal sheet, with its top surface being a horizontal plane for supporting other components. The fixing seat 2 is vertically fixed to the center of the top surface of the base 1 and is equipped with an adjustable cable 9 clamping mechanism for clamping the cable 9. The first positioning seat 3 is located at one end of the top surface of the base 1 and has a first mating surface 31, which is an inclined plane at a specific angle to the horizontal plane. In conjunction with the motor of the rail vehicle, the angle of inclination of the first mating surface 31 is adapted to the installation direction of the motor-side bolts. The second positioning seat 4 is located at the other end of the top surface of the base 1 and has a second mating surface 41, which is also an inclined plane at a specific angle to the horizontal plane, but intersects with the plane containing the first mating surface 31. In conjunction with the gearbox of the rail vehicle, the angle of inclination of the second mating surface 41 is adapted to the installation direction of the gearbox-side bolts.

[0060] When crimping the terminal 10 on the positioning device, place the cable 9 in the fixed seat 2 and clamp the cable 9 with the clamping mechanism to prevent the cable 9 from rotating; then, place the terminal 10 at one end of the cable 9 against the first mating surface 31 of the first positioning seat 3 and the terminal 10 at the other end against the second mating surface 41 of the second positioning seat 4; then use the crimping pliers 61 to crimp the terminals 10 at both ends respectively to ensure that the terminals are completely fitted with the corresponding mating surfaces.

[0061] After crimping, the angles of the terminals 10 (abutment ends) at both ends of the cable 9 are precisely defined as follows: the terminal 10 on one side of the first positioning seat 3 is parallel to the first mating surface 31, and the terminal 10 on one side of the second positioning seat 4 is parallel to the second mating surface 41, so as to match the spatial orientation difference between the bolt posts of the motor and the gearbox housing.

[0062] The positioning device of this invention, before crimping the terminals, forcibly constrains the angle of the two terminals after crimping by the first mating surface 31 and the second mating surface 41 with intersecting angles, thereby achieving accurate control of the angle of the terminals at both ends of the cable. This reduces cable twisting caused by the angle difference between the motor and gearbox mounting surfaces, resulting in smooth cable routing without twisting after cable tightening and no stress on the metal terminals. The terminals at both ends of the cable are fully fitted with the contact surfaces of the grounding bolt posts of the motor and gearbox, respectively, avoiding the risk of fatigue fracture caused by torsional stress concentration at the tail of the terminal, reducing rework, reducing the amount of cable and metal terminals used, and saving construction costs.

[0063] In some implementations, see Figures 1 to 5 The first mating surface 31 is perpendicular to the upper surface of the base 1, and the second mating surface 41 is parallel to the upper surface of the base 1. The first mating surface 31 is used to position the terminal 10 that needs to be horizontally fastened to the motor side, and the second mating surface 41 is used to position the terminal 10 that needs to be vertically fastened to the gearbox side.

[0064] Furthermore, the surface perpendicular to the upper surface of the base 1 is a vertical plane, and the surface parallel to the upper surface of the base 1 is a horizontal plane.

[0065] In some embodiments, the first mating surface 31 and the upper surface of the base 1 have a first included angle, and the second mating surface 41 and the upper surface of the base 1 have a second included angle. Operators can preset the sizes of the first and second included angles to control the terminals at both ends of the cable at specific angles. For example, in addition to the aforementioned vertical and horizontal angles, the first and second included angles can also be set to any angle between 10°, 20°, 30°, 40°, 50°, 60°, 70°, and 80°.

[0066] In some implementations, see Figures 1 to 4 The base 1 is provided with a first linear guide rail 5 extending along a first direction. The first positioning seat 3 and the second positioning seat 4 are arranged on both sides of the fixed base 2 along the first direction. At least one of the first positioning seat 3 and the second positioning seat 4 is slidably connected to the first linear guide rail 5. The distance between the first positioning seat 3 and the second positioning seat 4 can be adjusted by sliding to adapt to cables of different lengths.

[0067] When adjusting the distance between the first positioning seat 3 and the second positioning seat 4, slide the first positioning seat 3 or the second positioning seat 4 so that the distance between the first mating surface 31 and the second mating surface 41 matches the cable length; then clamp the middle part of the cable in the fixing seat 2; the terminal 10 at one end of the cable 9 is attached to the first mating surface 31; the terminal 10 at the other end of the cable is attached to the second mating surface 41; keep the two terminals 10 in full contact with the two mating surfaces, and then crimp the terminals 10 at both ends of the cable.

[0068] The positioning device adapts to cables of different specifications through a sliding positioning seat. Before crimping, it ensures that the cable is kept straight and that the terminals 10 at both ends are always in close contact with the mating surface. This avoids the terminals 10 being tilted due to the cable length deviation and reduces the impact on the positioning angle of the terminals at both ends of the cable.

[0069] Furthermore, the first positioning seat 3 is slidably connected to the first linear guide rail 5, and the second positioning seat 4 is fixedly connected to the base 1; or, the first positioning seat 3 is fixedly connected to the base 1, and the second positioning seat 4 is slidably connected to the first linear guide rail 5; or, both the first positioning seat 3 and the second positioning seat 4 are slidably connected to the first linear guide rail 5.

[0070] Furthermore, taking the example of the first positioning seat 3 being slidably connected to the first linear guide rail 5 and the second positioning seat 4 being fixedly connected to the base 1, a first slider 51 is slidably connected to the first linear guide rail 5, and the first positioning seat 3 is connected to the first slider 51. By pushing the first slider 51 to move along the first linear guide rail 5, the distance between the first positioning seat 3 and the second positioning seat 4 can be adjusted, thereby matching cables of different lengths. It is understandable that if one of the first positioning seat 3 and the second positioning seat 4 can slide, the distance between them can be adjusted. A fixed connection only requires a connector for fixation, while a sliding fit requires a separate first slider 51, which is relatively more expensive. Fixing one of the second positioning seats 4 to the base 1 can save costs.

[0071] In some implementations, see [reference] Figure 1 The first positioning seat 3, the fixed seat 2, and the second positioning seat 4 are located on the same side of the first linear guide rail 5.

[0072] In some implementations, see Figures 1 to 4 The first positioning base 3 is provided with a positioning groove 32 for placing the terminal 10. The groove wall on the upper surface of the vertical base 1 of the positioning groove 32 is configured as a first mating surface 31. The first mating surface 31 is provided with a first positioning hole 33, and a first positioning post 34 is inserted into the first positioning hole 33.

[0073] Furthermore, the positioning groove 32 has a U-shaped groove with the opening facing forward, which is used to place the motor side terminal and position the terminal in the vertical direction. The vertical groove wall of the positioning groove 32 is configured as a first mating surface 31, that is, the first mating surface 31 is perpendicular to the upper surface of the base 1. The first positioning post 34 is detachably inserted into the first positioning hole 33, which is used to pass through the terminal reserved hole to achieve front and rear direction limitation.

[0074] When crimping the cable 9 and the terminal 10, place the terminal 10 at one end of the cable 9 into the positioning groove 32 of the first positioning seat 3, insert the first positioning post 34 into the reserved hole of the terminal 10 and the first positioning hole 33, lock the circumferential position of the terminal 10, push the first positioning seat 3 to slide along the guide rail, so that the cable 9 is straightened and the terminal 10 at the other end of the cable is in contact with the second mating surface 41. After crimping, pull out the first positioning post 34 and take out the cable 9.

[0075] Based on the constraint of the terminal contact surface angle by the first mating surface 31, the first positioning post 34 also restricts the rotational freedom of the terminal to prevent deflection during crimping, thus achieving double limiting.

[0076] The U-shaped structure of the positioning groove 32 can guide the terminal to be accurately placed. The insertion mechanism of the first positioning post 34 ensures that the terminal reserved hole is coaxial with the first positioning hole 33, eliminates assembly deviation, and enables the terminal 10 to achieve zero-gap fit with the first mating surface 31, thereby improving the accuracy of the assembly angle.

[0077] Furthermore, the first positioning hole 33 extends in a direction perpendicular to the first mating surface 31, that is, the first positioning hole 33 is opened in the horizontal direction.

[0078] Furthermore, the positioning groove 32 is provided with a second positioning hole 42, which penetrates the positioning groove 32 along the direction perpendicular to the upper surface of the base 1. A pin 35 is inserted into the second positioning hole 42, and a receiving space for clamping the terminal 10 is formed between the pin 35 and the first mating surface 31.

[0079] Furthermore, the pin 35 is a pluggable cylindrical pin that is inserted into the second positioning hole 42. The accommodating space is formed by the gap between the outer surface of the pin 35 and the first mating surface 31, and the size matches the thickness of the terminal.

[0080] After the terminal 10 is placed into the positioning groove 32, the pin 35 is inserted, and the terminal 10 is clamped between the pin 35 and the first mating surface 31. Then, the first positioning post 34 is simultaneously inserted into the terminal pre-drilled hole. At this time, the terminal 10 is rigidly clamped on both sides, which further reduces the micro-movement of the terminal during the crimping process, ensures that the terminal and the first mating surface 31 fit together with zero gap, and further improves the accuracy of the terminal assembly angle.

[0081] In some implementations, see Figures 1 to 4 The top surface of the second positioning seat 4 is configured as a second mating surface 41, and a second positioning hole 42 is provided on the second mating surface 41. A second positioning post 43 is inserted into the second positioning hole 42.

[0082] Furthermore, the second mating surface 41 is a horizontal reference surface parallel to the upper surface of the base 1, the second positioning hole 42 penetrates the second mating surface 41 vertically, and the second positioning pin 43 is a pluggable cylindrical pin that is inserted into the second positioning hole 42.

[0083] After the terminal 10 at one end of the cable is limited by the first positioning seat 3, the terminal 10 at the other end of the cable 9 is placed flat on the second mating surface 41, and the second positioning post 43 is inserted through the terminal reserved hole and the second positioning hole 42 to limit the terminal 10 in a circumferential manner. After the terminals 10 at both ends of the cable 9 are fully constrained, crimping is performed.

[0084] The first positioning post 34 and the second positioning post 43 force the pre-drilled holes of the terminal 10 to align, ensuring that the contact surface is not offset during installation. The orthogonality of the horizontal and vertical reference planes ensures that the cable is not subjected to torsional load, further improving the accuracy of the assembly angle of the terminal 10.

[0085] Furthermore, the second positioning hole 42 extends in a direction perpendicular to the second mating surface 41, that is, the second positioning hole 42 is opened in a vertical direction.

[0086] In some implementations, seeFigures 1 to 4 The fixing seat 2 includes a fixing groove 21 with an opening and a clamping clamp 22 disposed at the opening. The clamping clamp 22 is used to adjust the diameter of the fixing groove 21.

[0087] Furthermore, the fixing groove 21 is a U-shaped groove with its opening facing upwards, used to accommodate the cable insulation layer. The clamping clamp 22 is hinged to one side of the opening of the fixing groove 21 and includes an adjusting bolt and a clamping arm that can rotate around the hinge axis. The adjusting bolt passes through the free end of the clamping arm and can be screwed in and out to adjust the effective diameter of the fixing groove 21.

[0088] When clamping cable 9, tighten the adjusting bolt and press down the pressure arm. At this time, the diameter of the fixing groove 21 decreases, clamping the insulation layer of cable 9. When releasing cable 9, loosen the adjusting bolt, raise the pressure arm, expand the diameter of the fixing groove 21, and then release cable 9. The user can pre-adjust the height of the adjusting bolt according to the outer diameter of the cable so that the diameter of the fixing groove 21 is slightly larger than the diameter of the cable.

[0089] The fixing groove 21 and the clamping clamp 22 are used to rigidly fix the middle of the cable. During crimping, the force on the terminals at both ends of the cable is not transmitted to the cable, ensuring that the terminals and mating surfaces fit together with zero offset, and improving the accuracy of the terminal assembly angle.

[0090] In some implementations, see Figure 1 One or more fixed seats 2 can be set. When multiple fixed seats 2 are set, they are spaced apart along the first direction.

[0091] In some implementations, see Figures 1 to 4 The base 1 is provided with a wire clamping support 6 for splicing cables 9. A wire clamping pliers 61 is connected to the wire clamping support 6. A second slider 52 is slidably connected to the first linear guide rail 5. The wire clamping support 6 is connected to the second slider 52.

[0092] Furthermore, the wire crimping support 6 is a rectangular platform, which is connected to the first linear guide rail 5 via the second slider 52. The wire crimping pliers 61 is a hydraulic crimping tool, which is rigidly connected to the top surface of the wire crimping support 6. The second slider 52 is slidably engaged with the first linear guide rail 5 and moves independently of the first slider 51.

[0093] When adjusting the crimping support 6, first slide the first positioning seat 3 to adjust the spacing and fix the cable 9, constraining the terminals at both ends, then push the crimping support 6 along the guide rail to the target position, and the crimping pliers 61 press down to complete the terminal crimping.

[0094] The crimping pliers 61 are coaxially aligned with the first positioning seat 3 and the second positioning seat 4 to eliminate crimping eccentric force. The guidance of the first linear guide rail 5 ensures that the movement trajectory of the crimping pliers 61 is parallel to the cable axis. The crimping force is applied along the terminal axis to prevent crimping deformation from causing uneven contact surfaces and to reduce stress concentration at the tail of the terminal.

[0095] Furthermore, the sliding wire crimping support 6 can eliminate the need for manual handling of the heavy-duty wire crimping pliers 61.

[0096] In some implementations, see Figures 1 to 4 The base 1 is provided with a second linear guide rail 7 extending in the first direction, and a third slider 71 is slidably connected to the second linear guide rail 7. The end of the wire clamp 61 facing away from the wire clamp support 6 is connected to the third slider 71.

[0097] One end of the crimping pliers 61 is rigidly connected to the crimping support 6, and the other end of the crimping pliers 61 is connected to the third slider 71. When the crimping pliers 61 performs crimping, the support point of the crimping pliers 61 and the crimping support 6 bears the main pressure. The other end of the crimping pliers 61 serves as a sliding fulcrum to keep the crimping pliers 61 horizontal and stable, and to prevent crimping deformation from causing uneven contact surfaces.

[0098] In some implementations, see Figures 1 to 4 The wire crimping support 6 has a channel for the terminal 10 to pass through. The jaws of the wire crimping pliers 61 are aligned with the channel. The wire crimping support 6 includes a base plate 62 and two limiting posts 63 spaced apart on the top surface of the base plate 62. The base plate 62 and the limiting posts 63 form a channel. An allowance opening is formed between the two limiting posts 63 for the jaws of the wire crimping pliers 61 to extend into the channel. The top surface of the base plate 62 is provided with an allowance groove 64, which is located between the two limiting posts 63 and is used to receive the jaws of the wire crimping pliers 61.

[0099] Furthermore, the base plate 62 includes a rectangular steel plate, two limiting posts 63 are vertically fixed to the top surface of the base plate 62, the channel is formed by the top surface of the base plate 62 and the inner sides of the two limiting posts 63, the size matches the cross section of the terminal 10, the clearance opening is the opening between the two limiting posts 63, and the clearance groove 64 is opened in the center of the top surface of the base plate 62, located between the two limiting posts 63.

[0100] When the crimping pliers 61 are connected to the crimping support 6, their jaws pass through the clearance opening and the bottom is embedded in the clearance groove 64, and the outer wall of the jaws abuts against the inner side of the limiting post 63.

[0101] When crimping the cable and terminal 10, the terminal 10 is passed horizontally through the channel, with the bottom surface of the terminal 10 adhering to the top surface of the base plate 62 and the two sides close to the limiting post 63. Then, the jaws of the crimping pliers 61 are passed through the clearance opening, and the bottom of the jaws enters the clearance groove 64. The inner wall of the jaws is coplanar with the inner side of the limiting post 63, forming a fully enclosed guide. Then, the crimping pliers 61 is closed, and the terminal 10 is compressed inside the jaws.

[0102] The channels provided, namely the top surface of the base plate 62 and the inner side of the limiting post 63, can guide and position the jaws of the crimping pliers 61, making installation accurate and convenient.

[0103] Furthermore, the clearance groove 64 with a certain depth can ensure that the lower limit position of the jaws is lower than the bottom surface of the terminal 10, and the crimping force is fully applied to the terminal body, controlling the downward pressing stroke of the jaws of the crimping pliers 61 and avoiding excessive compression of the terminal. At the same time, the bottom of the jaws of the crimping pliers 61 is embedded in the clearance groove 64, which plays a positioning role for the crimping pliers 61, reducing the risk of the crimping pliers 61 shifting during the crimping process and improving assembly accuracy.

[0104] In some implementations, see Figure 1 and Figure 2 The base 1 is provided with a scale 8 extending in the first direction.

[0105] For example, the scale 8 is a stainless steel strip, which is fixed to the side of the base 1 along the first direction.

[0106] Furthermore, a scale 8 is provided between the first linear guide 5 and the second linear guide 7, or a scale 8 is provided on the side of both the first linear guide 5 and the second linear guide 7. Users can use the scale 8 to verify the sliding adjustment distance, reduce the accumulation of misalignment caused by multiple adjustments, and improve assembly accuracy.

[0107] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-mentioned technical content to create equivalent embodiments without departing from the scope of the present utility model. The implementation schemes in the above embodiments can also be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A positioning device for crimping cable terminals, characterized in that, include: Base A mounting bracket, mounted on the base, is used to clamp the cable. The first positioning seat is set on the base and has a first mating surface; The second positioning seat is set on the base and has a second mating surface; The first mating surface and the second mating surface are used to abut against the terminal, and the planes on which the first mating surface and the second mating surface are located intersect.

2. The positioning device for crimping cable terminals according to claim 1, characterized in that, The first mating surface is perpendicular to the upper surface of the base, and the second mating surface is parallel to the upper surface of the base.

3. The positioning device for crimping cable terminals according to claim 1, characterized in that, The base is provided with a first linear guide rail extending along a first direction, and the first positioning seat and the second positioning seat are arranged on both sides of the fixed seat along the first direction. At least one of the first positioning seat and the second positioning seat is slidably connected to the first linear guide rail. The first positioning seat is slidably connected to the first linear guide rail, and the second positioning seat is fixedly connected to the base; A first slider is slidably connected to the first linear guide rail, and the first positioning seat is connected to the first slider.

4. The positioning device for crimping cable terminals according to claim 1, characterized in that, The first positioning seat is provided with a positioning groove for placing a terminal. The groove wall on the upper surface of the vertical base of the positioning groove is configured as the first mating surface. The first mating surface is provided with a first positioning hole, and a first positioning post is inserted into the first positioning hole. The first positioning hole extends in a direction perpendicular to the first mating surface; The positioning groove is provided with a second positioning hole, which penetrates the positioning groove along the direction perpendicular to the upper surface of the base. A pin is inserted into the second positioning hole, and a receiving space for clamping the terminal is formed between the pin and the first mating surface.

5. The positioning device for crimping cable terminals according to claim 1, characterized in that, The top surface of the second positioning seat is configured as the second mating surface, and a second positioning hole is provided on the second mating surface, and a second positioning pin is inserted into the second positioning hole; The second positioning hole extends in a direction perpendicular to the second mating surface.

6. The positioning device for crimping cable terminals according to any one of claims 1-5, characterized in that, The fixing base includes a fixing groove with an opening and a clamping clamp disposed at the opening, the clamping clamp being used to adjust the diameter of the fixing groove.

7. The positioning device for crimping cable terminals according to claim 3, characterized in that, The base is provided with a wire clamping support for splicing cables, and a wire clamping tool is connected to the wire clamping support. A second slider is slidably connected to the first linear guide rail, and the wire clamping support is connected to the second slider.

8. The positioning device for crimping cable terminals according to claim 7, characterized in that, The base is provided with a second linear guide rail extending along a first direction, and a third slider is slidably connected to the second linear guide rail. The end of the wire clamp away from the wire clamping support is connected to the third slider.

9. The positioning device for crimping cable terminals according to claim 7, characterized in that, The wire clamping support is provided with a channel for the terminal to pass through, and the jaws of the wire clamping pliers are engaged with the channel; The wire clamping support includes a base plate and two limiting posts spaced apart on the top surface of the base plate. The base plate and the limiting posts form the channel, and a clearance opening is formed between the two limiting posts for the jaws of the wire clamping pliers to extend into the channel. The top surface of the base plate is provided with a clearance groove, which is located between two limiting posts and is used to receive the jaws of the crimping pliers.

10. The positioning device for crimping cable terminals according to claim 1, characterized in that, The base is provided with a scale extending in a first direction.

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