Terminal machine and crimping method for multi-core wire terminals

Abstract

The present invention relates to the technical field of terminal machines, and in particular to a terminal machine for crimping multi-core wire terminals, and a method for crimping multi-core wire terminals; the wire fixing assembly clamps and fixes the wire; the wire storage disk assembly includes a wire storage disk, the wire fixing assembly is concentrically arranged with the wire storage disk, the outer ring of the wire storage disk is provided with a storage groove, the core wire in the wire passes through the storage groove, and a conveying part is arranged on the outside of the storage groove. The wire fixing assembly is concentrically arranged with the wire storage disk, so that the distance from each core wire in the wire to the storage groove is equal, and the conveying part is arranged so that the core wire on the left side of the wire storage disk remains in a straight state, and the length of the core wire on the right side of the wire storage disk and the core wire entering the terminal assembly are equal. The device is arranged for the wires of multiple core wires, so that the lengths of the multiple core wires entering the terminal assembly are kept consistent to the greatest extent, the error of the terminal is reduced to a minimum, and the quality of the terminal for multiple core wires is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of terminal machines, and in particular to a terminal machine for crimping multi-core wire terminals, and a multi-core wire terminal crimping method. Background Art

[0002] A terminal machine is a machine used in wire processing. It can press the hardware head to the end of the wire and then make it conductive. The terminals made by the terminal machine are more convenient to connect and can stably connect two wires together.

[0003] When performing terminal operations on wires, the crimping position of the terminal post and the wire is related to the quality of the finished terminal. The boundary between the wire insulation and the conductor is required to be within the inspection window of the terminal post. Therefore, there are high requirements for the length of the wire inserted into the terminal assembly. It is easier to maintain the length of the wire inserted into a single-strand core wire, but it is more difficult to keep the length of each strand of the wire inserted at the same time consistent for multi-strand core wires. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a terminal machine for crimping multi-core wire terminals and a multi-core wire terminal crimping method.

[0005] The present invention solves the above technical problems through the following technical means:

[0006] A terminal machine for crimping multi-core wire terminals, comprising a wire fixing assembly and a wire storage tray assembly; the wire fixing assembly clamps and fixes the wire;

[0007] The wire storage disk assembly includes a wire storage disk, the wire fixing assembly is arranged concentrically with the wire storage disk, a storage groove is opened on the outer ring of the wire storage disk, the core wire in the wire passes through the storage groove, and a conveying part is arranged on the outer side of the storage groove. The conveying part conveys the core wire to a side away from the wire fixing assembly, so that a section of the core wire on the left side of the wire storage disk is kept in a straight state, and a section of the core wire on the right side of the wire storage disk is the same in length.

[0008] As an improvement of the above technical solution, the conveying part includes an inner ring plate, a first mounting groove is opened on the inner ring side wall of the inner ring plate, the first mounting groove is slidably matched with a U-shaped plate, an elastic member is arranged between the U-shaped plate and the inner wall of the first mounting groove and is connected through the elastic member, the inner wall of the U-shaped plate is connected to a first motor, and the output end of the first motor is connected to an outer roller for conveying and clamping the core wire.

[0009] As an improvement of the above technical solution, the conveying part further includes an inner roller;

[0010] The storage slot is provided with a second mounting slot, and the inner roller is rotatably connected to the second mounting slot.

[0011] As an improvement of the above technical solution, an outer ring plate is sleeved on the outer side of the inner ring plate;

[0012] The inner ring plate is composed of a plurality of arc-shaped plates, and an electric push rod is arranged between the arc-shaped plates and connected with the outer ring plate through the electric push rod.

[0013] As an improvement of the above technical solution, a second motor is provided on a side of the wire storage drum away from the wire fixing assembly, and an output end of the second motor is connected to the wire storage drum.

[0014] As an improvement of the above technical solution, it also includes a workbench, a support seat is arranged above the workbench, and a first slide groove is opened on the support seat;

[0015] The wire fixing assembly includes a sleeve with a wire running through it, a first sliding block rotatably matched with a first sliding groove is arranged on the outer ring of the sleeve, and three screws are threadedly matched with the side wall of the sleeve, and the three screws are equidistantly distributed in a ring.

[0016] As an improvement of the above technical solution, the upper end surface of the workbench is provided with a strip groove perpendicular to the wire storage disk, the support seat is slidably matched with the strip groove, the workbench thread is matched with a bolt, and one end of the bolt is against the support seat.

[0017] As an improvement of the above technical solution, the sleeve and the first slider are both provided with an opening, the central angle corresponding to the arc length of the opening is less than 120 degrees, the first slider is provided with a notch, the inner wall of the notch is provided with a second slide groove, an arc rod is provided in the notch, the arc rod is rotatably matched with the first slide groove, and the arc rod is connected to the second slider slidably matched with the second slide groove;

[0018] One end of the arc rod located outside the slot is connected to a first permanent magnet, and the first permanent magnet adsorbs a second permanent magnet connected to the opening of the first slider.

[0019] As an improvement of the above technical solution, it also includes a terminal crimping assembly, and the conveying part conveys one end of the core wire to the interior of the terminal crimping assembly for terminal crimping operation.

[0020] A multi-core wire terminal crimping method comprises the following steps:

[0021] S1. Skin cutting: peel off the skin of the wire to expose the inner core wire;

[0022] S2, single strand cutting: peel off the skin of multiple strands of core wires respectively, and in the process of peeling off the skin, ensure that the length of the skin peeled off for each strand of core wire is the same;

[0023] S3, core wire positioning, fixing the stripped wire in the wire fixing assembly;

[0024] Each core wire is placed in a storage tank respectively, and the corresponding conveying part conveys the core wire to the terminal assembly, and the length of the core wire in each terminal assembly is the same;

[0025] S4. Terminal striking: The terminal striking assembly is used to perform terminal striking operation on the core wire.

[0026] Beneficial effects of the present invention:

[0027] In the technical scheme of a terminal machine for crimping multi-core wire terminals, the wire fixing assembly clamps and fixes the wire, the core wire in the wire passes through the storage slot, and the conveying part conveys one end of the core wire to be crimped to the inside of the crimping assembly for crimping.

[0028] The wire fixing assembly is concentrically arranged with the wire storage disk so that the distance from each core wire in the wire to the storage slot is equal. The conveying part is arranged so that the core wire on the left side of the wire storage disk remains straight, and the lengths of the core wire on the right side of the wire storage disk and the core wire entering the terminal assembly are equal. This device is arranged for wires with multiple core wires so that the lengths of the multiple core wires entering the terminal assembly are kept consistent to the greatest extent, thereby reducing the error of the terminal to a minimum and ensuring the quality of the terminal punching of multiple core wires. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a structural schematic diagram of a terminal machine for crimping multi-core wire terminals according to an embodiment of the present application;

[0030] Figure 2 for Figure 1 A schematic diagram of the enlarged structure in the middle;

[0031] Figure 3 for Figure 1 Schematic diagram of the structure of the central storage reel assembly;

[0032] Figure 4 for Figure 3 A magnified schematic diagram of the structure B in the middle;

[0033] Figure 5 This is a schematic diagram of the cooperation between the workbench and the wire fixing assembly of the embodiment of the present application;

[0034] Figure 6 for Figure 5 Schematic diagram of the middle casing structure;

[0035] Figure numerals: base plate 1; workbench 2; support seat 201; first slide groove; strip groove 202; bolt 203; wire fixing assembly 3; sleeve 301; first slider 302; notch 303; second slide groove 3031; arc rod 304; second slider 3041; first permanent magnet 305; second permanent magnet 306; screw 307; wire storage disk assembly 4; wire storage disk 401; storage groove 4011; second motor 4012; conveying part 402; inner ring plate 4021; first mounting groove 4022; elastic member 4023; U-shaped plate 4024; first motor 4025; outer roller 4026; inner roller 4027; electric push rod 4028; outer ring plate 4029; terminal assembly 5. DETAILED DESCRIPTION

[0036] 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.

[0037] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0038] Example 1

[0039] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the present embodiment is a terminal machine for crimping multi-core wire terminals, comprising a wire fixing assembly 3, a wire storage tray assembly 4 and a terminal crimping assembly 5. The terminal crimping assembly 5 is realized by conventional technical means, which will not be described in detail here; the terminal crimping assembly 5 is connected to the bottom plate 1 through the second side plate;

[0040] The wire storage disk assembly 4 includes a wire storage disk 401, and the wire fixing assembly 3 is arranged concentrically with the wire storage disk 401. The outer circle of the wire storage disk 401 is provided with storage grooves 4011. The number of the storage grooves 4011 is set according to the number of strands of the core wire, and the storage grooves 4011 are distributed in a ring at equal distances. The core wire in the wire passes through the storage grooves 4011. The outer side of the storage groove 4011 is provided with a conveying part 402. The conveying part 402 conveys one end of the core wire to be terminald to the inside of the terminal terminal assembly 5 for terminal terminal operation.

[0041] In the technical scheme of the terminal machine for crimping multi-core wire terminals, the wire fixing assembly 3 clamps and fixes the wire, the core wire in the wire passes through the storage groove 4011, and the conveying part 402 conveys one end of the core wire to be crimped to the inside of the crimping terminal assembly 5 for crimping operation;

[0042] The wire fixing assembly 3 is concentrically arranged with the wire storage tray 401, so that the distance from each core wire in the wire to the storage slot 4011 is equal (regardless of the distribution state of the core wire in the wire, if the distribution state of the core wire in the wire is considered, the distance from each core wire in the wire to the storage slot 4011 is equal to the maximum extent), and the conveying part 402 is arranged so that the core wire on the left side of the wire storage tray 401 is kept straight, so that the length of the core wire on the right side of the wire storage tray 401 and the core wire entering the terminal assembly 5 are equal (see Figure 1 ), the device is set for the conductors of multiple core wires, so that the lengths of the multiple core wires entering the terminal assembly 5 are kept consistent to the greatest extent, the error of the terminal is reduced to a minimum, and the quality of the terminal is guaranteed.

[0043] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the conveying portion 402 includes an inner ring plate 4021, and a first mounting groove 4022 is opened on the inner ring side wall of the inner ring plate 4021. The first mounting groove 4022 is slidably matched with a U-shaped plate 4024. An elastic member 4023 is arranged between the U-shaped plate 4024 and the inner wall of the first mounting groove 4022 and connected through the elastic member 4023. The setting of the elastic member 4023 provides a buffering force to the inner roller 4027 to the outer roller 4026, so that the outer roller 4026 and the inner roller 4027 can clamp the core wire, but at the same time, the pressure on the core wire will not be too great, thereby ensuring the quality of the core wire. The inner wall of the U-shaped plate 4024 is connected to the first motor 4025, and the output end of the first motor 4025 is connected to the outer roller 4026 for conveying and clamping the core wire.

[0044] The conveying portion 402 also includes an inner roller 4027; a second mounting groove is opened on the storage groove 4011, and the inner roller 4027 is rotatably connected to the second mounting groove. The setting of the inner roller 4027 changes the sliding friction between the core wire and the storage groove 4011 into a rolling friction between the core wire and the inner roller 4027, thereby reducing the wear of the core wire when the core wire is conveyed.

[0045] The outer ring plate 4029 is sleeved on the outer side of the inner ring plate 4021, and the outer ring plate 4029 is connected to the bottom plate 1 through the first side plate; the inner ring plate 4021 is composed of a plurality of arc plates, and an electric push rod 4028 is provided between the arc plates and the outer ring plate 4029 and connected through the electric push rod 4028.

[0046] like Figure 1 As shown, a second motor 4012 is provided on the side of the wire storage tray 401 away from the wire fixing assembly 3, the bottom of the second motor 4012 is connected to the bottom plate 1 through the second side plate, and the output end of the second motor 4012 is connected to the wire storage tray 401; the second motor 4012 is powered on and started, driving the wire storage tray 401 to rotate synchronously. The setting of the second motor 4012 provides power for the rotation of the wire storage tray 401, thereby improving the convenience of the staff in operating the device.

[0047] In this case, by controlling the increase of the overall length of the electric push rod 4028, the inner ring plate 4021 and the outer roller 4026 are driven to move toward the outer ring plate 4029, that is, the distance between the outer roller 4026 and the inner roller 4027 is increased; by controlling the shortening of the overall length of the electric push rod 4028, the inner ring plate 4021 and the outer roller 4026 are driven to move away from the outer ring plate 4029, that is, the distance between the outer roller 4026 and the inner roller 4027 is increased;

[0048] After the wire is fixed inside the wire fixing assembly 3, the core wire is placed in the storage groove 4011. The specific process may be: 1. The distance between the inner roller 4027 and the outer roller 4026 at the corresponding storage groove 4011 is increased in sequence. After the core wire is placed, the distance between the two is shortened to clamp the core wire;

[0049] 2. Taking the outer roller 4026 at the uppermost end as an example, control the outer roller 4026 at the uppermost end to move away from the inner roller 4027, place the first strand of core wire, rotate the wire storage disk 401, move to the next storage slot 4011 to the outer roller 4026 at the uppermost end, place the second strand of core wire, repeat the above steps until all the core wires are placed, while the wire storage disk 401 rotates, under the action of the outer ring plate 4029, the core wire is confined in the storage slot 4011; the adjustable distance between the outer roller 4026 and the inner roller 4027 facilitates the placement of the core wire in the storage slot 4011, and facilitates the removal of the terminal end after the core wire is terminalized.

[0050] After the core wire is placed in the storage slot 4011, the first motor 4025 is started to drive the outer roller 4026 to rotate in the direction of rotation. Figure 2 As shown by the arrow in FIG. 1 , the rotating outer roller 4026 drives the core wire to be transported to the terminal assembly 5, as shown in FIG. Figure 1 As shown by the middle arrow, the core wire on the left side of the wire storage disk 401 remains straight, and the outer roller 4026 stops rotating. The outer roller 4026 has a clamping effect on the core wire. When performing the terminal operation, the outer roller 4026 and the inner roller 4027 clamp the core wire to avoid displacement of the core wire, thereby ensuring the quality of the terminal.

[0051] like Figure 1 , Figure 5 , Figure 6 As shown, it also includes a workbench 2, the lower end of the workbench 2 is connected to the base plate 1, a support seat 201 is arranged above the workbench 2, and a first slide groove is opened on the support seat 201; the wire fixing component 3 includes a sleeve 301 with a wire running through the inside, and a first slider 302 is arranged on the outer ring of the sleeve 301 to rotate with the first slide groove, and the side wall of the sleeve 301 is threaded with three screws 307, and the three screws 307 are equidistantly distributed in a ring.

[0052] The wire is placed in the sleeve 301, and the screws 307 are rotated the same number of times to fix the wire inside the sleeve 301. The three screws 307 are equidistantly distributed in a ring to fix the wire at the center point of the sleeve 301; the sleeve 301 and the support seat 201 are rotated to cooperate to avoid the situation where the wire is slightly twisted when the core wire is placed inside the storage groove 4011 after the wire is fixed due to the distribution position of the core wire inside the wire.

[0053] like Figure 5 As shown, the upper end surface of the workbench 2 is provided with a strip groove 202 perpendicular to the wire storage disk 401, the support seat 201 is slidably matched with the strip groove 202, and the workbench 2 is threadedly matched with a bolt 203, one end of the bolt 203 is against the support seat 201; the support seat 201 and the strip groove 202 are slidably matched, so that the wire fixing assembly 3 can move toward the direction close to the wire storage disk assembly 4 or away from the wire storage disk assembly 4. After the wire fixing assembly 3 is adjusted into place, the support seat 201 is fixed by the bolt 203, that is, the position of the wire fixing assembly 3 is fixed.

[0054] When fixing the wire in the wire fixing assembly 3, the length required for the wire to be located on the right side of the wire fixing assembly 3 is controlled to be less than a predetermined length. After being fixed in place, the position of the wire fixing assembly 3 is controlled to gradually feed the material until the length of the core wire located inside the terminal assembly 5 reaches a predetermined length, thereby avoiding the inability to quickly fix the wire at the required length position, shortening the required operation time, and improving the control accuracy of the wire position to ensure the quality of the terminal.

[0055] like Figure 5 , Figure 6 As shown, both the sleeve 301 and the first slider 302 are provided with openings, and the central angle corresponding to the arc length of the opening is less than 120 degrees. The first slider 302 is provided with a notch 303, and the inner wall of the notch 303 is provided with a second slide groove 3031. An arc rod 304 is provided in the notch 303, and the arc rod 304 is rotatably matched with the first slide groove. The arc rod 304 is connected to a second slider 3041 that is slidably matched with the second slide groove 3031; one end of the arc rod 304 located outside the notch 303 is connected to a first permanent magnet 305, and the first permanent magnet 305 is adsorbed with a second permanent magnet 306 connected to the opening of the first slider 302;

[0056] The arc rod 304 is fixed on the sleeve 301 by the magnetic attraction of the first permanent magnet 305 and the second permanent magnet 306 to form a complete circular ring to limit the wire. The sleeve 301 and the first slider 302 are both opened to avoid the situation where the wire is too long and inconvenient to be taken out. If the terminal is pulled out from one end, the terminal cannot be smoothly taken out of the sleeve 301 due to the increase in volume.

[0057] A multi-core wire terminal crimping method comprises the following steps:

[0058] S1. Skin cutting: peel off the skin of the wire to expose the inner core wire;

[0059] S2, single strand cutting: peel off the skin of multiple strands of core wires respectively, and in the process of peeling off the skin, ensure that the length of the skin peeled off for each strand of core wire is the same;

[0060] S3, core wire positioning, fixing the stripped wire in the wire fixing assembly 3;

[0061] Each strand of core wire is placed in the storage tank 4011, and the corresponding conveying part 402 conveys the core wire to the punching terminal assembly 5. The length of the core wire in each punching terminal assembly 5 is the same;

[0062] S4, terminal: The terminal assembly 5 performs terminal operation on the core wire.

[0063] Among them, in step S3, 1. when the stripped wire is fixed in the wire fixing assembly 3, the length required for the wire to be located on the right side of the wire fixing assembly 3 is controlled to be less than a predetermined length. When the conveying part 402 conveys the core wire, the position of the wire fixing assembly 3 is controlled to feed the material step by step until the length of the core wire located inside the terminal assembly 5 reaches a predetermined length.

[0064] The multi-core wire terminal crimping method has all the advantages of a multi-core wire terminal crimping machine for crimping terminals, such as each core wire of the multi-core wire is fed into the terminal crimping assembly with the same length and the terminal crimping quality is high.

[0065] It should be noted that, in this article, if there are first and second, etc., relational terms are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0066] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A terminal crimping machine for multi-core wire terminals, characterized in that: It comprises a wire fixing assembly (3) and a wire storage tray assembly (4); the wire fixing assembly (3) clamps and fixes the wire; The wire storage disk assembly (4) comprises a wire storage disk (401), the wire fixing assembly (3) and the wire storage disk (401) are arranged concentrically, the outer ring of the wire storage disk (401) is provided with a storage groove (4011), the core wire in the wire passes through the storage groove (4011), and a conveying part (402) is arranged on the outer side of the storage groove (4011), and the conveying part (402) conveys the core wire to a side away from the wire fixing assembly (3), so that a section of the core wire located on the left side of the wire storage disk (401) is kept in a straight state, and a section of the core wire located on the right side of the wire storage disk (401) is the same length; The conveying portion (402) comprises an inner ring plate (4021), a first mounting groove (4022) is provided on the inner ring side wall of the inner ring plate (4021), a U-shaped plate (4024) is slidably matched with the first mounting groove (4022), an elastic member (4023) is provided between the U-shaped plate (4024) and the inner wall of the first mounting groove (4022) and connected via the elastic member (4023), a first motor (4025) is connected to the inner wall of the U-shaped plate (4024), and an outer roller (4026) for conveying and clamping the core wire is connected to the output end of the first motor (4025); The conveying portion (402) further comprises an inner roller (4027); a second mounting groove is provided on the storage groove (4011), and the inner roller (4027) is rotatably connected to the second mounting groove; An outer ring plate (4029) is sleeved on the outer portion of the inner ring plate (4021); the inner ring plate (4021) is composed of a plurality of arc-shaped plates, and an electric push rod (4028) is provided between the arc-shaped plates and the outer ring plate (4029) and connected via the electric push rod (4028).

2. A terminal crimping machine for multi-core wire terminals according to claim 1, characterized in that: A second motor (4012) is provided on a side of the wire storage disk (401) away from the wire fixing assembly (3), and an output end of the second motor (4012) is connected to the wire storage disk (401).

3. A terminal crimping machine for multi-core wire terminals according to claim 1, characterized in that: It also comprises a workbench (2), a support seat (201) being arranged above the workbench (2), and a first slide groove being provided on the support seat (201); The wire fixing assembly (3) comprises a sleeve (301) with a wire running through it, a first sliding block (302) rotatably engaged with a first sliding groove is arranged on the outer ring of the sleeve (301), and three screws (307) are threadedly engaged with the side wall of the sleeve (301), and the three screws (307) are equidistantly distributed in a ring.

4. A terminal crimping machine for multi-core wire terminals according to claim 3, characterized in that: The upper end surface of the workbench (2) is provided with a strip groove (202) perpendicular to the wire storage disk (401); the support seat (201) is slidably matched with the strip groove (202); the workbench (2) is threadedly matched with a bolt (203); one end of the bolt (203) is abutted against the support seat (201).

5. A terminal crimping machine for multi-core wire terminals according to claim 3, characterized in that: The sleeve (301) and the first slider (302) are both provided with openings, the central angle corresponding to the arc length of the opening is less than (120) degrees, the first slider (302) is provided with a notch (303), the inner wall of the notch (303) is provided with a second slide groove (3031), an arc rod (304) is provided in the notch (303), the arc rod (304) is rotatably matched with the first slide groove, and the arc rod (304) is connected to a second slider (3041) slidably matched with the second slide groove (3031); One end of the arc-shaped rod (304) located outside the slot (303) is connected to a first permanent magnet (305), and the first permanent magnet (305) adsorbs a second permanent magnet (306) connected to the opening of the first slider (302).

6. A terminal crimping machine for multi-core wire terminals according to claim 1, characterized in that: It also includes a terminal crimping assembly (5), wherein the conveying portion (402) conveys one end of the core wire to the interior of the terminal crimping assembly (5) for performing a terminal crimping operation.

7. A crimping method for a multi-core wire terminal crimping machine according to any one of claims 1 to 6, characterized in that: The following steps are included: S1. Skin cutting: peel off the skin of the wire to expose the inner core wire; S2, single strand cutting: peel off the skin of multiple strands of core wires respectively, and in the process of peeling off the skin, ensure that the length of the skin peeled off for each strand of core wire is the same; S3, core wire positioning, fixing the stripped wire in the wire fixing assembly (3); Each strand of core wire is placed in a storage groove (4011) respectively, and the corresponding conveying part (402) conveys the core wire to a terminal assembly (5), wherein the length of the core wire in each terminal assembly (5) is the same; S4. Terminal tapping: The terminal tapping assembly (5) performs terminal tapping operation on the core wire.

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