Terminal precision crimping machine equipped with limiting structure

Abstract

The invention relates to the technical field of terminal crimping, and discloses a terminal precision crimping machine equipped with a limiting structure, which comprises a machine body, and the upper surface of the machine body is fixedly connected with a crimping mechanism used for crimping a terminal and a wire rod; the limiting part is used for clamping the terminal and the wire rod, and the limiting part is arranged on the upper surface of the machine body; wherein the limiting part comprises a terminal limiting piece and a wire rod limiting piece, the terminal limiting piece comprises a mounting frame, the mounting frame is connected to the upper surface of the machine body in a sliding mode, and a terminal clamping assembly is arranged in the mounting frame. The terminal precision crimping machine equipped with the limiting structure can effectively solve the problems that in the prior art, the placement accuracy of a wire and a terminal is difficult to guarantee by manual hand holding, the positions of the wire and the terminal need to be repeatedly adjusted to achieve a relatively ideal crimping effect, and when the wire is manually placed, the placement depth of each time cannot be guaranteed to be the same; and the crimping quality between the wire and the terminal is influenced.

Description

Technical Field

[0001] The invention relates to the technical field of terminal crimping, and in particular to a terminal precision crimping machine equipped with a limiting structure. Background Art

[0002] Terminal crimping is an electrical connection technology, which is mainly used for crimping the relevant connection parts of wires and cables with matching terminals to form inseparable, long-term and reliable electrical and mechanical connections to achieve circuit connection and signal transmission. Among them, terminal crimping machines are necessary tools for the power industry to perform continuous crimping during line infrastructure construction and line maintenance.

[0003] In the prior art, when crimping the terminal and the wire, the worker will hold the wire and the terminal, align the parts to be crimped and place them in the crimping machine. However, it is difficult to ensure the accuracy of the placement of the wire and the terminal by manual holding, and the position of the wire and the terminal needs to be adjusted repeatedly to achieve a relatively ideal crimping effect. In addition, when manually placing the wire, it is impossible to ensure that the depth of insertion is the same each time, which affects the crimping quality between the wire and the terminal. Summary of the invention

[0004] Technical issues solved In view of the above-mentioned shortcomings of the prior art, the present invention provides a terminal precision crimping machine equipped with a limiting structure, which can effectively solve the problem in the prior art that it is difficult to ensure the accuracy of the placement of the wires and terminals by manual holding, and the positions of the wires and terminals need to be repeatedly adjusted to achieve a more ideal crimping effect. In addition, when the wires are placed manually, it is impossible to ensure that the depth of placement is the same each time, which affects the crimping quality between the wires and the terminals.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: The present invention provides a terminal precision crimping machine with a limiting structure, comprising: A body, the upper surface of which is fixedly connected with a crimping mechanism for crimping terminals and wires; A limiting part, used for clamping the terminal and the wire, and the limiting part is arranged on the upper surface of the body; Among them, the limiting part includes a terminal limiting piece and a wire limiting piece, the terminal limiting piece includes a mounting frame, the mounting frame is slidably connected to the upper surface of the body, and a terminal clamping assembly is arranged in the mounting frame, and the wire limiting piece includes a fixing frame, the fixing frame is slidably connected to the upper surface of the body, and a wire clamping assembly is arranged in the fixing frame.

[0006] Furthermore, it also includes a translation mechanism for adjusting the positions of the terminal limiter and the wire limiter; The translation mechanism includes a double-headed screw, which is rotatably connected to the inner side of the body. The body drives the double-headed screw to rotate through a driving member arranged on the outer side thereof. The body is slidably connected to a mounting plate threadedly connected to the double-headed screw through a sliding hole opened on its upper surface, and two mounting plates are provided. The upper surfaces of the mounting plates are respectively fixedly connected to the lower surfaces of the mounting frame and the fixing frame.

[0007] Furthermore, the side wall of the mounting frame is fixedly connected with an abutment rod, and the fixing frame is rotatably connected with a movable rod via a support plate arranged on the side wall thereof, and the abutment rod and the movable rod are both designed with curved surfaces at one end close to each other.

[0008] Furthermore, the wire clamping assembly includes a limiting sleeve, which is movably connected to the inside of the fixed frame through a groove opened on its circumferential outer surface, and the limiting sleeve is rotatably connected to the ring frame through an annular groove opened on its circumferential outer surface, and the inner wall of the ring frame is fixedly connected to an arc-shaped protrusion.

[0009] Furthermore, the circumferential outer surface of the limiting sleeve is provided with a driving mechanism for driving the ring frame to rotate, and the driving mechanism includes a ring gear, which is fixedly installed on the circumferential outer surface of the ring frame. The circumferential outer surface of the limiting sleeve is detachably provided with a driving motor, and the output end of the driving motor is fixedly connected to a gear meshing with the ring gear.

[0010] Furthermore, the limiting sleeve is slidably connected to a slide rod via a slot hole opened on its circumferential surface, and the slide rod is provided with a plurality of slide rods distributed in an array along the circumference of the limiting sleeve, and the side wall of the slide rod is provided with a slot, and the slot is provided with a plurality of slide rods distributed along the slide rod array.

[0011] Furthermore, one end of the sliding rod is fixedly connected to an abutting arc block that fits with the circumferential outer surface of the arc-shaped protrusion, and the other end of the sliding rod is fixedly connected to a limiting arc plate, and the limiting arc plate is connected to the inner wall of the limiting sleeve through an elastic part arranged on its circumferential outer surface, and the limiting arc plate is fixedly connected to an abutting arc plate that fits with the circumferential outer surface of the wire through an elastic frame arranged on its circumferential outer surface.

[0012] Furthermore, the wire clamping assembly further includes a travel limiting mechanism for limiting the travel of the slide rod; The travel limit mechanism includes a limit hole, which is arranged inside the limit sleeve. The limit hole includes a guide groove and a through hole, and the guide groove and the through hole are connected. A locking wedge is slidably connected in the guide groove, and the locking wedge is connected to the inner wall of the guide groove through a round wire spring arranged on its surface.

[0013] Furthermore, an abutment plate is slidably connected in the through hole, and the abutment plate passes through the interior of the limiting arc plate and fits with the circumferential outer surface of the abutment arc plate.

[0014] Furthermore, the joint surfaces of the abutment plate and the engaging wedge block are both designed as inclined surfaces.

[0015] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects: The present invention is provided with a wire limiting member, and multiple slide bars move synchronously, which can ensure that the limiting arc plate approaches the wire at a uniform speed from different directions, so that the wire is accurately positioned at the center of the crimping area, avoiding the wire being manually fed into the crimping mechanism, simplifying the feeding steps, helping to ensure the accuracy of the crimping position, avoiding poor crimping due to wire deviation, and improving the crimping efficiency of the terminal. As the ring frame rotates, the elastic frame between the abutting arc plate and the limiting arc plate is compressed, which can reduce the distance between the two and apply a certain pressure to the wire, and this pressure can firmly fix the wire. When the engaging wedge enters the slot on the surface of the slide bar and fits each other, the movement of the slide bar is blocked, and the limiting arc plate and the abutting arc plate stop moving toward the wire, avoiding the excessive pressure generated by the limiting arc plate, resulting in deformation of the wire, damage to the internal conductor or destruction of the insulation layer, which affects normal use in the later stage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the present invention; Figure 2 It is a schematic structural diagram of a front view plane of an embodiment of the present invention; Figure 3 It is a three-dimensional structural schematic diagram of a terminal limiting member and a wire limiting member according to an embodiment of the present invention; Figure 4 It is a three-dimensional structural schematic diagram of the translation mechanism according to an embodiment of the present invention; Figure 5 This is a schematic structural diagram of a cross-section of a position limiting sleeve according to an embodiment of the present invention; Figure 6 For the embodiment of the present invention Figure 5 A schematic diagram of the structure enlargement in the middle; Figure 7 This is a schematic diagram of the structure of the three-dimensional separation of the wire limiting member according to an embodiment of the present invention; Figure 8 It is a schematic diagram of the structure of the limiting sleeve and the sliding rod being three-dimensionally separated in an embodiment of the present invention; Fig. 9It is a schematic structural diagram of the three-dimensional separation of the abutting arc plate, the limiting arc plate and the sliding rod according to an embodiment of the present invention.

[0018] The numbers in the figure represent respectively: 1, machine body; 11, crimping mechanism; 12, translation mechanism; 121, double-headed screw; 122, mounting plate; 2, limiting part; 21, terminal limiting piece; 211, mounting frame; 2111, abutment rod; 212, terminal clamping assembly; 22, wire limiting piece; 221, fixing frame; 2211, movable rod; 222, wire clamping assembly; 2221, limiting sleeve; 2222, ring frame; 22221, arc-shaped protrusion; 2223, sliding rod; 22231, slot; 2224, abutment arc block; 2225, limiting arc plate; 2226, abutment arc plate; 2227, travel limiting mechanism; 22271, limiting hole; 22272, engaging wedge block; 22273, abutment plate. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] The present invention will be further described below in conjunction with the embodiments. Example

[0021] See also Figure 1-Figure 9 The present invention provides a technical solution: a terminal precision crimping machine with a limiting structure, comprising: A body 1, the upper surface of which is fixedly connected with a crimping mechanism 11 for crimping terminals and wires; The limiting part 2 is used for clamping the terminal and the wire, and the limiting part 2 is arranged on the upper surface of the body 1; Among them, the limiting part 2 includes a terminal limiting piece 21 and a wire limiting piece 22, the terminal limiting piece 21 includes a mounting frame 211, the mounting frame 211 is slidably connected to the upper surface of the body 1, and a terminal clamping assembly 212 is arranged in the mounting frame 211, and the wire limiting piece 22 includes a fixing frame 221, the fixing frame 221 is slidably connected to the upper surface of the body 1, and a wire clamping assembly 222 is arranged in the fixing frame 221.

[0022] It also includes a translation mechanism 12 for adjusting the positions of the terminal stopper 21 and the wire stopper 22; The translation mechanism 12 includes a double-headed screw 121, which is rotatably connected to the inner side of the body 1. The body 1 drives the double-headed screw 121 to rotate through a driving member arranged on its outer side. The body 1 is slidably connected to a mounting plate 122 threadedly connected to the double-headed screw 121 through a sliding hole opened on its upper surface, and two mounting plates 122 are provided. The upper surfaces of the mounting plates 122 are respectively fixedly connected to the lower surfaces of the mounting frame 211 and the fixing frame 221.

[0023] The side wall of the mounting frame 211 is fixedly connected to an abutting rod 2111, and the fixing frame 221 is rotatably connected to a movable rod 2211 via a supporting plate arranged on the side wall thereof. The abutting rod 2111 and the movable rod 2211 are both designed with curved surfaces at one end close to each other.

[0024] The wire clamping assembly 222 includes a limiting sleeve 2221, which is movably connected to the inside of the fixing frame 221 through a groove provided on its circumferential outer surface. The limiting sleeve 2221 is rotatably connected to the ring frame 2222 through an annular groove provided on its circumferential outer surface, and an arc-shaped protrusion 22221 is fixedly connected to the inner wall of the ring frame 2222.

[0025] A driving mechanism for driving the ring frame 2222 to rotate is provided on the circumferential outer surface of the limiting sleeve 2221, and the driving mechanism includes a ring gear, which is fixedly installed on the circumferential outer surface of the ring frame 2222. A driving motor is detachably installed on the circumferential outer surface of the limiting sleeve 2221, and a gear meshing with the ring gear is fixedly connected to the output end of the driving motor.

[0026] The limiting sleeve 2221 is slidably connected to the sliding rod 2223 through a groove hole opened on its circumferential surface, and the sliding rod 2223 is provided with multiple and distributed in an array along the circumference of the limiting sleeve 2221. The side wall of the sliding rod 2223 is provided with a slot 22231, and the slot 22231 is provided with multiple and distributed in an array along the sliding rod 2223.

[0027] One end of the slide rod 2223 is fixedly connected to an abutting arc block 2224 that fits with the circumferential outer surface of the arc-shaped protrusion 22221, and the other end of the slide rod 2223 is fixedly connected to a limiting arc plate 2225, and the limiting arc plate 2225 is connected to the inner wall of the limiting sleeve 2221 through an elastic part arranged on its circumferential outer surface, and the limiting arc plate 2225 is fixedly connected to an abutting arc plate 2226 that fits with the circumferential outer surface of the wire through an elastic frame arranged on its circumferential outer surface.

[0028] The wire clamping assembly 222 also includes a travel limiting mechanism 2227 for limiting the travel of the slide bar 2223; The travel limit mechanism 2227 includes a limit hole 22271, which is arranged inside the limit sleeve 2221. The limit hole 22271 includes a guide groove and a through hole, and the guide groove and the through hole are connected. A locking wedge block 22272 is slidably connected in the guide groove, and the locking wedge block 22272 is connected to the inner wall of the guide groove through a round wire spring arranged on its surface.

[0029] An abutment plate 22273 is slidably connected in the through hole, and the abutment plate 22273 passes through the interior of the limiting arc plate 2225 and fits with the circumferential outer surface of the abutment arc plate 2226 .

[0030] The joint surfaces of the abutment plate 22273 and the engaging wedge block 22272 are both designed to be inclined.

[0031] The working principle and advantages of the terminal precision crimping machine with limited structure: In actual use, the staff will place the wires to be crimped and the terminals in the wire clamping assembly 222 and the terminal clamping assembly 212 respectively. The pressing block in the terminal clamping assembly 212 will firmly fix the terminals to be crimped inside it to prevent the terminals from loosening during the later crimping, which will affect the crimping quality between the terminals and the wires. When the wires extend into the limiting sleeve 2221, the driving mechanism provided on the outer surface of the limiting sleeve 2221 will drive the ring frame 2222 to rotate slowly and at a uniform speed. With the rotation of the ring frame 2222, the arc-shaped protrusions 22221 in the ring frame 2222 can be rotated synchronously.

[0032] When the arc-shaped protrusion 22221 rotates slowly and uniformly, the arc-shaped protrusion 22221 will gradually contact the abutting arc block 2224 at the end of the slide bar 2223 (the arc-shaped protrusion 22221 and the abutting arc block 2224 are both arc-shaped and convex). As the contact between the arc-shaped protrusion 22221 and the abutting arc block 2224 increases, the slide bar 2223 will drive the limiting arc plate 2225 to move inside the limiting sleeve 2221, and the elastic member on the circumferential outer surface of the limiting arc plate 2225 will be stretched. When the limiting arc plate 2225 gradually approaches the circumferential outer surface of the wire, the abutting arc plate 2226 on the surface of the limiting arc plate 2225 will first fit with the circumferential outer surface of the wire. When multiple abutting arc plates 2226 fit with the circumferential outer surface of the wire, the wire will complete the initial limit in the limiting sleeve 2221.

[0033] It is worth noting that after the limiting sleeve 2221 completes the initial limiting of the wire, the central axis of the terminal fixed in the terminal clamping assembly 212 coincides with each other, which is conducive to the accurate entry of the part to be crimped on the surface of the wire into the terminal when the translation mechanism 12 moves the wire clamping assembly 222 and the terminal clamping assembly 212. At the same time, multiple slide bars 2223 (the number of slide bars 2223 and limiting arc plates 2225 can be set according to actual operation requirements, and three are preferred here) move synchronously, which can ensure that the limiting arc plates 2225 approach the wire at a uniform speed from different directions, so that the wire is accurately positioned in the center of the crimping area, which helps to ensure the accuracy of the crimping position and avoid poor crimping due to wire deviation.

[0034] The present invention uses the wire clamping assembly 222, which has the following advantages: Advantage 1: The synchronous movement of multiple slide bars 2223 can ensure that the limiting arc plate 2225 approaches the wire at a uniform speed from different directions, so that the wire is accurately positioned at the center of the crimping area, avoiding the operator from manually feeding the wire into the crimping mechanism 11, simplifying the crimping loading steps, helping to ensure the accuracy of the crimping position, avoiding poor crimping due to wire deviation, and improving the crimping efficiency of the terminal.

[0035] Advantage two, by driving the ring frame 2222 to rotate and cooperating with the arc-shaped protrusion 22221, the sliding rod 2223 can drive the corresponding limiting arc plate 2225 to approach the wire for limiting. According to the different diameters of the wires, the sliding rod 2223 can be adjusted to drive the limiting arc plate 2225 to move, thereby realizing accurate positioning and limiting of wires of different specifications, thereby improving the versatility and flexibility of the crimping equipment.

[0036] Advantage three, multiple sliding rods 2223 drive the limiting arc plate 2225 to apply limiting force to the wire from multiple angles, which can evenly distribute the pressure on the circumferential outer surface of the wire. Compared with single-point or unilateral limiting, this method can avoid excessive local pressure on the wire and puncture or scratch the insulation layer of the wire, causing deformation and damage of the wire, affecting the normal use of the wire in the later stage.

[0037] After the abutting arc plate 2226 is fitted with the wire, the ring frame 2222 on the circumferential outer surface of the limiting sleeve 2221 continues to rotate. At this time, the contact degree between the arc-shaped protrusion 22221 and the abutting arc block 2224 is further increased, and the elastic frame between the abutting arc plate 2226 and the limiting arc plate 2225 will be compressed, so that the distance between the abutting arc plate 2226 and the limiting arc plate 2225 can be reduced, and then the abutting plate 22273 will move along the limiting hole 22271 to the side away from the abutting arc plate 2226, and the abutting plate 22273 will be rigid. When entering the limiting hole 22271, the inclined surface at the end of the abutment plate 22273 will fit with the inclined surface at the end of the engaging wedge block 22272. As the abutment plate 22273 enters the limiting hole 22271 more and more, the inclined surface at the end of the abutment plate 22273 will squeeze the inclined surface at the end of the engaging wedge block 22272, and then the engaging wedge block 22272 will be subjected to a horizontal component force, which will drive the engaging wedge block 22272 to move along the opening groove and gradually enter the engaging groove 22231 on the surface of the sliding rod 2223.

[0038] When the engaging wedge block 22272 enters the slot 22231, the plane of the engaging wedge block 22272 will fit together with the plane of the slot 22231, and the movement of the slide rod 2223 will be hindered by the engaging wedge block 22272. At this time, the external driving mechanism will stop driving the ring frame 2222 to rotate, so that the limiting arc plate 2225 and the abutting arc plate 2226 will stop moving toward the wire, so that the wire can be firmly fixed in the limiting sleeve 2221 to avoid position displacement during subsequent crimping.

[0039] The present invention adopts the travel limit mechanism 2227, which has the following advantages: As the ring frame 2222 rotates, the elastic frame between the abutting arc plate 2226 and the limiting arc plate 2225 is compressed, so that the distance between the two is reduced and a certain pressure is applied to the wire. This pressure can firmly fix the wire, and the elastic frame can also play a buffering role. After the engaging wedge block 22272 enters the slot 22231 on the surface of the sliding rod 2223 and fits each other, the movement of the sliding rod 2223 is blocked, and the limiting arc plate 2225 and the abutting arc plate 2226 stop moving toward the wire, thereby preventing the wire from being deformed, the internal conductor from being damaged, or the insulation layer from being destroyed due to excessive pressure generated by the limiting arc plate 2225, thereby protecting the structure and performance of the wire from being affected.

[0040] After the wire is fixed, the double-headed screw 121 at the bottom of the body 1 is driven to rotate by controlling the driving member. Since the threads at both ends of the double-headed screw 121 have opposite rotation directions, the two mounting plates 122 can move toward each other along the sliding hole, and then the wire clamping assembly 222 and the terminal clamping assembly 212 will synchronously approach the crimping mechanism 11 until the wire to be crimped enters the terminal. When the wire clamping assembly 222 and the terminal clamping assembly 212 are synchronously approaching the crimping mechanism 11, the abutting rod 2111 on the mounting frame 211 will contact the movable rod 2211 on the fixed frame 221, so that the movable rod 2211 will rotate along the internal pin shaft, and the end away from the abutting rod 2111 will gradually move toward the limiting sleeve 2221, so that the abutting rod 2111 will push the limiting sleeve 2221 to produce a short-distance displacement in the fixed frame 221, so that the limiting sleeve 2221 and the wire continue to move a short distance into the terminal, ensuring that the contact between the wire and the terminal is more sufficient. At this time, the double-headed screw 121 stops rotating, and the crimping mechanism 11 crimps the wire and the terminal.

[0041] It is worth noting that the limiting sleeve 2221 is damped and slides in the fixing frame 221, and a strong spring is provided between the limiting sleeve 2221 and the fixing frame 221. When the fixing frame 221 drives the limiting sleeve 2221 to move normally, the limiting sleeve 2221 will not move in the fixing frame 221. When the abutting rod 2111 and the movable rod 2211 abut against each other, the thrust generated by the movable rod 2211 can drive the limiting sleeve 2221 to move along the fixing frame 221. When the abutting rod 2111 and the movable rod 2211 are separated from each other, the strong spring can overcome the friction force to reset the limiting sleeve 2221 to facilitate the next processing.

[0042] The present invention adopts the abutment rod 2111 and the movable rod 2211, which has the following advantages: The abutment rod 2111 cooperates with the movable rod 2211 to make the limiting sleeve 2221 and the wire move a short distance into the terminal, so that the wire can also make contact with the part of the terminal that was not fully in contact, thereby significantly increasing the effective contact area between the two, making the contact between the wire and the terminal more complete, and making the mechanical connection between them more secure. Through this controllable short-distance displacement operation, the contact between the wire and the terminal can be made more stable and consistent during each crimping process, reducing the difference in crimping quality caused by human factors or equipment errors, and improving the product yield and production efficiency.

[0043] After the processing is completed, the staff controls the terminal clamping assembly 212, and the terminal clamping assembly 212 releases the limit on the terminal. At the same time, the staff controls the double-headed screw 121 to rotate in the opposite direction, so that the wire clamping assembly 222 and the terminal clamping assembly 212 can be separated from each other. Then, the driving mechanism rotates the ring frame 2222 in the opposite direction, and the arc-shaped protrusion 22221 on the ring frame 2222 gradually decreases the contact degree with the abutting arc block 2224. Since the size of the slot 22231 is larger than the size of the abutting plate 22273, the elastic member on the surface of the limiting arc plate 2225 gradually recovers, so that the slide bar 2223 will have a small range of displacement. At this time, the engaging wedge block 22272 will gradually move away from the matching inclined surface and contact the inclined surface in the slot 22231. Under the action of the inclined surface, the engaging wedge block 22272 will gradually break away from the slot 22231, thereby releasing the limit of the slide bar 2223. When the elastic member on the surface of the limiting arc plate 2225 is fully restored, the limiting arc plate 2225 and the abutting arc plate 2226 will be away from the wire, and the staff can take the crimped wire out of the limiting sleeve 2221.

[0044] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A terminal precision crimping machine with a limiting structure, characterized in that: include: A machine body (1), wherein a crimping mechanism (11) for crimping terminals and wires is fixedly connected to an upper surface of the machine body (1); A limiting portion (2) is used for clamping the terminal and the wire, and the limiting portion (2) is arranged on the upper surface of the body (1); The limiting portion (2) comprises a terminal limiting member (21) and a wire limiting member (22); the terminal limiting member (21) comprises a mounting frame (211); the mounting frame (211) is slidably connected to the upper surface of the body (1); a terminal clamping assembly (212) is provided in the mounting frame (211); the wire limiting member (22) comprises a fixing frame (221); the fixing frame (221) is slidably connected to the upper surface of the body (1); a wire clamping assembly (222) is provided in the fixing frame (221); The side wall of the mounting frame (211) is fixedly connected to an abutment rod (2111), the fixing frame (221) is rotatably connected to a movable rod (2211) via a support plate arranged on the side wall thereof, and the abutment rod (2111) and the movable rod (2211) are both designed with curved surfaces at one end close to each other; When the mounting frame (211) and the fixing frame (221) are brought close to each other, the abutting rod (2111) and the movable rod (2211) come into contact with each other, and the movable rod (2211) is driven to rotate by the abutting rod (2111). During the rotation process, the end of the movable rod (2211) away from the abutting rod (2111) can adjust the horizontal position of the wire clamping assembly (222).

2. According to claim 1, a terminal precision crimping machine with a limiting structure is characterized in that: It also includes a translation mechanism (12) for adjusting the positions of the terminal limiter (21) and the wire limiter (22); The translation mechanism (12) comprises a double-headed screw (121), wherein the double-headed screw (121) is rotatably connected to the inner side of the machine body (1), and the machine body (1) drives the double-headed screw (121) to rotate via a driving member arranged on the outer side thereof, and the machine body (1) is slidably connected to a mounting plate (122) threadedly connected to the double-headed screw (121) via a sliding hole provided on the upper surface thereof, and two mounting plates (122) are provided, and the upper surfaces of the mounting plates (122) are respectively fixedly connected to the lower surfaces of the mounting frame (211) and the fixing frame (221).

3. According to the terminal precision crimping machine with a limiting structure as claimed in claim 1, it is characterized in that: The wire clamping assembly (222) comprises a limiting sleeve (2221), the limiting sleeve (2221) being movably connected to the interior of the fixing frame (221) via a notch provided on its circumferential outer surface, the limiting sleeve (2221) being rotatably connected to the ring frame (2222) via a ring groove provided on its circumferential outer surface, and an arc-shaped protrusion (22221) being fixedly connected to the inner wall of the ring frame (2222).

4. A terminal precision crimping machine with a limiting structure according to claim 3, characterized in that: The outer circumferential surface of the limiting sleeve (2221) is provided with a driving mechanism for driving the ring frame (2222) to rotate, the driving mechanism comprising a gear ring, the gear ring being fixedly mounted on the outer circumferential surface of the ring frame (2222), a driving motor being detachably mounted on the outer circumferential surface of the limiting sleeve (2221), and a gear meshing with the gear ring being fixedly connected to the output end of the driving motor.

5. The terminal precision crimping machine with a limiting structure according to claim 3, characterized in that: The limiting sleeve (2221) is slidably connected to a slide bar (2223) via a slot hole provided on its circumferential surface, and the slide bar (2223) is provided with a plurality of slots distributed in an array along the circumference of the limiting sleeve (2221); a side wall of the slide bar (2223) is provided with a plurality of slots (22231), and the slots (22231) are provided with a plurality of slots distributed in an array along the slide bar (2223).

6. A terminal precision crimping machine with a limiting structure according to claim 5, characterized in that: One end of the slide bar (2223) is fixedly connected to an abutting arc block (2224) that fits the circumferential outer surface of the arc-shaped protrusion (22221); the other end of the slide bar (2223) is fixedly connected to a limiting arc plate (2225), and the limiting arc plate (2225) is connected to the inner wall of the limiting sleeve (2221) via an elastic member arranged on its circumferential outer surface; the limiting arc plate (2225) is fixedly connected to an abutting arc plate (2226) that fits the circumferential outer surface of the wire material via an elastic frame arranged on its circumferential outer surface.

7. The terminal precision crimping machine with a limiting structure according to claim 1, characterized in that: The wire clamping assembly (222) further comprises a travel limiting mechanism (2227) for limiting the travel of the sliding rod (2223); The travel limit mechanism (2227) comprises a limit hole (22271), wherein the limit hole (22271) is arranged inside the limit sleeve (2221), wherein the limit hole (22271) comprises a guide groove and a through hole, wherein the guide groove and the through hole are connected, wherein a locking wedge block (22272) is slidably connected in the guide groove, and the locking wedge block (22272) is connected to the inner wall of the guide groove via a round wire spring arranged on its surface.

8. A terminal precision crimping machine with a limiting structure according to claim 7, characterized in that: An abutment plate (22273) is slidably connected in the through hole, and the abutment plate (22273) passes through the interior of the limiting arc plate (2225) and fits with the circumferential outer surface of the abutment arc plate (2226).

9. A terminal precision crimping machine with a limiting structure according to claim 8, characterized in that: The engaging surfaces of the abutment plate (22273) and the engaging wedge block (22272) are both designed as inclined surfaces.

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