Automatic twisting and folding device for the inner terminal of the new energy vehicle charging adapter

Abstract

The present invention discloses an automatic twisting and folding foot device for the inner terminal of a new energy vehicle charging adapter, comprising a fixed frame; two twisting and folding foot mechanisms, one of which is slidably connected to the upper portion of one side of the fixed frame, and the other is fixedly installed at the lower portion of the same side of the fixed frame; a lifting drive mechanism, the lifting drive mechanism being installed on the other side of the fixed frame and at least used to drive the twisting and folding foot mechanism slidably connected to one side of the fixed frame to perform lifting and lowering movements; the twisting and folding foot mechanism comprises a fixed seat, a knob mechanism, and a folding foot mechanism. The present invention can simultaneously twist and fold the feet of both ends of a flower spring in both forward and reverse directions, solving the problem of the existing one-way twisting method causing the flower spring spring to be off-center and uneven in texture. The overall design is reasonable, the structure is compact, the use is convenient, the production yield is high, and the practicality is strong.

Description

Technical Field

[0001] The present invention relates to the technical field of inner terminal assembly, and in particular to an automatic twisting and folding pin device for an inner terminal of a new energy vehicle charging adapter. Background Art

[0002] The advantages of the inner terminals (hereinafter referred to as inner terminals) in new energy vehicle charging adapters include excellent conductivity, corrosion resistance, and long life. The inner terminals are the core components of new energy vehicle charging adapters and consist of a copper sleeve and a spring (both made of the same copper material). The basic assembly process is as follows: first, turn the spring knob, then fold down the ends of the spring.

[0003] To ensure good conductivity, corrosion resistance and long service life of the charging terminal, the surfaces of the copper sleeve and the flower spring are silver-plated before assembly. During the assembly process, no obvious damage should be caused to the copper sleeve and the flower spring. After the flower spring is bent, the side of the pin is at 90° to the end face of the copper sleeve.

[0004] At present, the conventional inner terminal twisting and folding foot mechanism has the following shortcomings:

[0005] 1. The one-way twisting method is used, and the spring shrapnel is not centered, resulting in uneven texture after twisting and obvious damage to the spring. Only copper sleeves and springs without silver plating can be produced;

[0006] 2. The flower spring is obviously damaged, and only unsilver-plated copper sleeves and flower springs can be produced. After the pins are bent, the pin angles are messy and the production yield is low. Summary of the Invention

[0007] The purpose of the present invention is to provide an automatic twisting and folding foot device for the inner terminal of a new energy vehicle charging adapter. The device is provided with two twisting and folding foot mechanisms, which can simultaneously twist and fold the two ends of the flower spring in the forward and reverse directions, thereby solving the problem that the existing one-way twisting method causes the flower spring spring sheet to be not centered and the texture to be uneven. The overall design is reasonable, the structure is compact, the use is convenient, the production yield is high, and the practicality is strong.

[0008] In order to achieve the above objectives, the following technical solutions are adopted:

[0009] An automatic twisting and folding device for the inner terminal of a new energy vehicle charging adapter, comprising

[0010] Fixed frame;

[0011] Two rotating and flexing leg mechanisms, one of which is slidably connected to an upper portion of one side of the fixing frame, and the other is fixedly mounted on a lower portion of the same side of the fixing frame;

[0012] A lifting drive mechanism, the lifting drive mechanism being installed on the other side of the fixing frame and being used for at least driving a twisting and folding leg mechanism slidably connected to one side of the fixing frame to perform lifting motion;

[0013] The twisting and folding foot mechanism includes a fixed seat, a knob mechanism, and a folding foot mechanism; the knob mechanism includes a rotation drive assembly installed on one side of the fixed seat, and a knob shaft connected to the rotation drive assembly; the folding foot mechanism includes a folding foot lifting assembly installed on the other side of the fixed seat, a folding foot lifting seat connected to the folding foot lifting assembly, and a folding foot jig installed on the folding foot lifting seat; the folding foot jig is mounted on the knob shaft and can rotate relative to the folding foot jig with the knob shaft; the folding foot jig can also slide along the axial direction of the knob shaft under the drive of the folding foot lifting assembly.

[0014] Furthermore, the folding leg lifting seat is L-shaped, and the L-shaped vertical end of the folding leg lifting seat is connected to the folding leg lifting assembly, and the L-shaped horizontal end of the folding leg lifting seat extends horizontally to the bottom of the knob mechanism; a limiting notch is provided at the end of the L-shaped horizontal end of the folding leg lifting seat, and an arc-shaped slot is also provided on the inner wall of the limiting notch; the lower part of the knob shaft is movable through the limiting notch, and the folding leg jig is located in the arc-shaped slot.

[0015] Furthermore, the folding foot jig includes a rotating disk and a sleeve integrally connected to the bottom of the rotating disk; the rotating disk is movably arranged in the arc-shaped slot, and the top of the rotating disk is also provided with a first socket that passes through the bottom of the sleeve; the lower part of the knob shaft is arranged through the first socket.

[0016] Furthermore, the inner wall of the first socket is provided with a plurality of limit slots in the vertical direction, and the lower outer wall of the knob shaft is provided with a plurality of limit slides corresponding to the plurality of limit slots; when the lower part of the knob shaft is arranged through the first socket, each limit slide is correspondingly inserted into a limit slot.

[0017] Furthermore, a plurality of folding foot slots are provided at intervals on the circumference of the bottom of the sleeve; the folding foot slots are opened along the axial direction of the sleeve, and an upwardly inclined inclined surface is provided at one end of the folding foot slot away from the bottom of the sleeve.

[0018] Furthermore, the bottom of the knob shaft is of a conical structure.

[0019] Furthermore, the rotary drive assembly includes a rotary motor installed on one side of the fixed seat, a coupling connected to the rotary motor, and a ball screw assembly connected to the coupling; the knob shaft is connected to the ball screw assembly.

[0020] Furthermore, the folding leg lifting assembly includes a first slide rail assembly, a motor seat, and a first lifting motor; the motor seat and the first slide rail assembly are installed on the other side of the fixed seat, the first lifting motor is installed on the motor seat, and the first lifting motor also drives and connects to a first screw rod assembly; the folding leg lifting seat is arranged on the first slide rail assembly and is connected to the first screw rod assembly.

[0021] Furthermore, a second slide rail assembly is vertically mounted on an upper portion of one side of the fixing frame, and a lifting slide is disposed on the second slide rail assembly; one of the twisting and folding leg mechanisms is mounted on the lifting slide.

[0022] Furthermore, the lifting drive mechanism includes a second lifting motor installed on the other side of the fixed frame, a second screw assembly connected to the second lifting motor, and a connecting seat connected to the second screw assembly; the upper part of the side of the fixed frame where the lifting slide is provided is also provided with a lifting slide hole, and one end of the connecting seat passes through the lifting slide hole and is connected to the lifting slide.

[0023] By adopting the above scheme, the beneficial effects of the present invention are:

[0024] The device is equipped with two twisting and folding foot mechanisms, which can simultaneously twist and fold the two ends of the flower spring in the forward and reverse directions, solving the problem of the existing one-way twisting method causing the flower spring spring to be off-center and the texture to be uneven. The overall design is reasonable, the structure is compact, it is easy to use, the production yield is high, and it is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A perspective view of the present invention;

[0026] Figure 2 for Figure 1 A stereogram from another perspective;

[0027] Figure 3 A perspective view of the twisting and folding leg mechanism of the present invention;

[0028] Figure 4 for Figure 3 A three-dimensional image from another perspective (omitting part of the connecting plate of the fixing base);

[0029] Figure 5 A three-dimensional diagram of the folding leg lifting seat, the folding leg fixture, and the knob shaft of the present invention;

[0030] Figure 6 This is an exploded view of the folding foot jig and the knob shaft of the present invention;

[0031] Figure 7 This is a schematic diagram of the inner terminal assembly process;

[0032] The accompanying drawings illustrate:

[0033] 1—Fixed frame; 2—Twisting and folding foot mechanism;

[0034] 3—Lifting drive mechanism; 4—Lifting slide plate;

[0035] 21—fixed seat; 22—knob mechanism;

[0036] 23—Folding foot mechanism; 24—Limiting slide;

[0037] 31—Second lifting motor; 32—Second screw assembly;

[0038] 33—Connecting seat; 34—Lifting slide hole;

[0039] 221—knob shaft; 222—limit slider;

[0040] 223—rotating motor; 224—coupling;

[0041] 225—Ball screw assembly; 231—Folding leg lifting seat;

[0042] 232—Folding fixture; 233—Limiting notch;

[0043] 234—arc-shaped slot; 235—first lifting motor;

[0044] 236—first screw assembly; 2321—rotating disk;

[0045] 2322—sleeve; 2323—folding foot slot;

[0046] 2324—Inclined surface. DETAILED DESCRIPTION

[0047] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0048] Reference Figures 1 to 6 As shown, the present invention provides an automatic twisting and folding foot device for the inner terminal of a new energy vehicle charging adapter, comprising a fixing frame 1; two twisting and folding foot mechanisms 2, wherein one twisting and folding foot mechanism 2 is slidably connected to the upper part of one side of the fixing frame 1, and the other twisting and folding foot mechanism 2 is fixedly installed on the lower part of the side of the fixing frame 1; a lifting drive mechanism 3, wherein the lifting drive mechanism 3 is installed on the other side of the fixing frame 1, and is at least used to drive the twisting and folding foot mechanism 2 slidably connected to one side of the fixing frame 1 to perform lifting and lowering movements; the twisting and folding foot mechanism 2 comprises a fixing seat 21, a knob mechanism 22, and a folding foot mechanism 23; the rotating The button mechanism 22 includes a rotary drive assembly installed on one side of the fixed seat 21, and a knob shaft 221 connected to the rotary drive assembly; the folding foot mechanism 23 includes a folding foot lifting assembly installed on the other side of the fixed seat 21, a folding foot lifting seat 231 connected to the folding foot lifting assembly, and a folding foot jig 232 installed on the folding foot lifting seat 231; the folding foot jig 232 is sleeved on the knob shaft 221 and can rotate relative to the folding foot jig 232 with the knob shaft 221; the folding foot jig 232 can also slide along the axial direction of the knob shaft 221 under the drive of the folding foot lifting assembly.

[0049] Continue to refer to Figures 1 to 6 As shown in the figure, it is the assembly process of the inner terminal of the new energy vehicle charging adapter (hereinafter referred to as the inner terminal). This device mainly focuses on step 6 to twist the two ends of the flower spring and bend the pin 90°; the device can be placed vertically or horizontally for use. In one embodiment, it is described in a vertical placement manner. When working, the external manipulator moves the combination of the copper sleeve and the flower spring (such as Figure 7 , and the two folding foot lifting assemblies drive the folding foot fixture 232 connected thereto to move so as to press the pins at both ends of the flower spring, thereby simultaneously bending the pins at both ends of the flower spring to 90° to form inner terminals. Compared with the conventional one-way twisting method, the present device uses two twisting and folding foot mechanisms 2 to twist and bend both ends of the flower spring at the same time, and can apply pressure to both ends of the flower spring at the same time, so as to ensure that it remains in a centered state during the twisting and bending process, so that the texture is uniform and the product quality is improved.

[0050] In one embodiment, the folding foot lifting seat 231 has an L-shaped structure, and the L-shaped vertical end of the folding foot lifting seat 231 is connected to the folding foot lifting assembly, and the L-shaped horizontal end of the folding foot lifting seat 231 extends horizontally to the bottom of the knob mechanism 22; a limiting notch 233 is provided at the end of the L-shaped horizontal end of the folding foot lifting seat 231, and an arc-shaped slot 234 is also provided on the inner wall of the limiting notch 233; the lower part of the knob shaft 221 is movably arranged through the limiting notch 233, and the folding foot jig 232 is located in the arc-shaped slot 234; the folding foot jig 232 includes a rotating disk 2321, and a sleeve 2322 integrally connected to the bottom of the rotating disk 2321; the rotating disk 2321 is movably arranged in the arc-shaped slot 234, and the top of the rotating disk 2321 is also provided with a first socket that passes through the bottom of the sleeve 2322; the lower part of the knob shaft 221 is arranged through the first socket.

[0051] In this embodiment, the arc-shaped slot 234 is semicircular, and the rotating disk 2321 is located in the arc-shaped slot 234, and a gap is left between the rotating disk 2321 and the inner wall of the arc-shaped slot 234 so that the rotating disk 2321 can rotate in the arc-shaped slot 234. At the same time, when the folding foot lifting seat 231 is lifted or lowered, the rotating disk 2321 can also be driven to lift or lower through the arc-shaped slot 234; the lower part of the knob shaft 221 is connected to the rotating disk 2321 and the sleeve 2322 through the first jack, which can drive the rotating disk 2321 and the sleeve 2322 to perform synchronous rotation. At the same time, the rotating disk 2321 and the sleeve 2322 can slide along the axial direction of the knob shaft 221 under the drive of the folding foot lifting assembly.

[0052] In one embodiment, the inner wall of the first insertion hole is further provided with a plurality of limiting grooves 24 along the vertical direction, and the lower outer wall of the knob shaft 221 is further provided with a plurality of limiting slides 222 at locations corresponding to the limiting grooves 24. When the lower portion of the knob shaft 221 is inserted through the first insertion hole, each limiting slide 222 is inserted into a corresponding limiting groove 24. The provision of the limiting slides 222 and limiting grooves 24 ensures that the knob shaft 221 can drive the folding foot jig 232 to rotate synchronously, while also guiding the folding foot jig 232 to slide relative to the knob shaft 221, ensuring smooth sliding.

[0053] In one embodiment, a plurality of folding foot slots 2323 are spaced apart circumferentially on the bottom of the sleeve 2322 ; the folding foot slots 2323 are opened along the axial direction of the sleeve 2322 , and an upwardly inclined inclined surface 2324 is provided at one end of the folding foot slot 2323 away from the bottom of the sleeve 2322 .

[0054] In this embodiment, after the knob shaft 221 is inserted into the end of the copper sleeve to limit the flower spring in the copper sleeve, the knob shaft 221 can be driven by the rotary drive component to drive the sleeve 2322 to rotate, so that each pin at both ends of the flower spring is aligned with each folding foot slot 2323 at the bottom of the sleeve 2322, and then, under the drive of the folding foot lifting component, the folding foot fixture 232 is driven to slide so that each pin is inserted into a folding foot slot 2323; then, the two rotary drive components drive the knob shaft 221 and the folding foot fixture 232 to rotate in the forward and reverse directions respectively to twist the flower spring. , so that the flower spring forms an angle; then, the two folding leg lifting assemblies respectively drive the folding leg fixture 232 connected thereto to move, so that the inclined surface 2324 in the folding leg slot 2323 is pressed against the pins at both ends of the flower spring, and then the pins at both ends of the flower spring are bent 90° to form inner terminals. In this embodiment, the folding leg slot 2323 and the inclined surface 2324 are provided, which can ensure that the twisting and bending process is carried out smoothly and the quality of the product can be improved. In addition, the bottom of the knob shaft 221 is conical in structure, which can facilitate the knob shaft 221 to be inserted into the copper sleeve, fully contact with the flower spring, and thus facilitate the twisting of the flower spring.

[0055] In one embodiment, the rotation drive assembly includes a rotation motor 223 mounted on one side of the fixed base 21, a coupling 224 connected to the rotation motor 223, and a ball screw assembly 225 connected to the coupling 224. The knob shaft 221 is connected to the ball screw assembly 225. The use of a motor-screw transmission method ensures the stability of the rotation of the knob shaft 221.

[0056] In one embodiment, the folding leg lifting assembly includes a first slide rail assembly, a motor base, and a first lifting motor 235; the motor base and the first slide rail assembly are installed on the other side of the fixed base 21, the first lifting motor 235 is installed on the motor base, and the first lifting motor 235 also drives a first screw rod assembly 236; the folding leg lifting base 231 is arranged on the first slide rail assembly and connected to the first screw rod assembly 236; a second slide rail assembly is also installed on the upper part of one side of the fixed frame 1 in the vertical direction, and a lifting slide 4 is also arranged on the second slide rail assembly; one of the twisting and folding leg mechanisms 2 is installed on the lifting slide 4; the lifting drive mechanism 3 includes a second lifting motor 31 installed on the other side of the fixed frame 1, a second screw rod assembly 32 connected to the second lifting motor 31, and a connecting base 33 connected to the second screw rod assembly 32; a lifting slide hole 34 is also opened on the upper part of the side of the fixed frame 1 where the lifting slide 4 is provided, and one end of the connecting base 33 passes through the lifting slide hole 34 and is connected to the lifting slide 4. In this embodiment, the folding foot lifting assembly and the lifting drive mechanism 3 both adopt a motor screw transmission method, which can improve the stability of the folding fixture and the lifting slide 4.

[0057] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device for automatically twisting and folding the inner terminal of a new energy vehicle charging adapter, characterized in that: include Fixed frame; Two rotating and flexing leg mechanisms, one of which is slidably connected to an upper portion of one side of the fixing frame, and the other is fixedly mounted on a lower portion of the same side of the fixing frame; A lifting drive mechanism, the lifting drive mechanism being installed on the other side of the fixing frame and being used for at least driving a twisting and folding leg mechanism slidably connected to one side of the fixing frame to perform lifting motion; The twisting and folding foot mechanism includes a fixed seat, a knob mechanism, and a folding foot mechanism; the knob mechanism includes a rotation drive assembly mounted on one side of the fixed seat, and a knob shaft connected to the rotation drive assembly; the folding foot mechanism includes a folding foot lifting assembly mounted on the other side of the fixed seat, a folding foot lifting seat connected to the folding foot lifting assembly, and a folding foot jig mounted on the folding foot lifting seat; the folding foot jig is sleeved on the knob shaft and can rotate relative to the folding foot jig with the knob shaft; the folding foot jig can also slide along the axial direction of the knob shaft under the drive of the folding foot lifting assembly; The folding leg lifting seat is L-shaped, and the L-shaped vertical end of the folding leg lifting seat is connected to the folding leg lifting assembly, and the L-shaped horizontal end of the folding leg lifting seat extends horizontally to the bottom of the knob mechanism; a limiting notch is formed at the end of the L-shaped horizontal end of the folding leg lifting seat, and an arc-shaped slot is also formed on the inner wall of the limiting notch; the lower part of the knob shaft is movably arranged through the limiting notch, and the folding leg fixture is located in the arc-shaped slot; The foot-folding jig includes a rotating disk and a sleeve integrally connected to the bottom of the rotating disk; the rotating disk is movably arranged in the arc-shaped slot, and a first socket is formed on the top of the rotating disk and extends to the bottom of the sleeve; the lower portion of the knob shaft is arranged through the first socket; The inner wall of the first insertion hole is further provided with a plurality of limit sliding grooves in the vertical direction, and the lower outer wall of the knob shaft is further provided with a plurality of limit sliding strips at positions corresponding to the plurality of limit sliding grooves; when the lower portion of the knob shaft is arranged through the first insertion hole, each limit sliding strip is correspondingly inserted into a limit sliding groove; A plurality of folding foot slots are spaced apart on the circumference of the bottom of the sleeve; the folding foot slots are opened along the axial direction of the sleeve, and an upwardly inclined inclined surface is provided at one end of the folding foot slot away from the bottom of the sleeve.

2. The automatic twisting and folding device for the inner terminal of the new energy vehicle charging adapter according to claim 1 is characterized in that: The bottom of the knob shaft is in a conical structure.

3. The automatic twisting and folding device for the inner terminal of the new energy vehicle charging adapter according to claim 1 is characterized in that: The rotary drive assembly includes a rotary motor installed on one side of the fixing seat, a coupling connected to the rotary motor, and a ball screw assembly connected to the coupling; the knob shaft is connected to the ball screw assembly.

4. The automatic twisting and folding device for the inner terminal of the new energy vehicle charging adapter according to claim 1 is characterized in that: The folding leg lifting assembly includes a first slide rail assembly, a motor seat, and a first lifting motor; the motor seat and the first slide rail assembly are installed on the other side of the fixed seat, the first lifting motor is installed on the motor seat, and the first lifting motor also drives and connects to a first screw rod assembly; the folding leg lifting seat is arranged on the first slide rail assembly and is connected to the first screw rod assembly.

5. The automatic twisting and folding device for the inner terminal of the new energy vehicle charging adapter according to any one of claims 1 to 4, characterized in that: A second slide rail assembly is also installed on the upper part of one side of the fixing frame in the vertical direction, and a lifting slide plate is also arranged on the second slide rail assembly; one of the twisting and folding leg mechanisms is installed on the lifting slide plate.

6. The automatic twisting and folding device for the inner terminal of the new energy vehicle charging adapter according to claim 5, characterized in that: The lifting drive mechanism includes a second lifting motor installed on the other side of the fixed frame, a second screw rod assembly connected to the second lifting motor, and a connecting seat connected to the second screw rod assembly; the upper part of the side of the fixed frame where the lifting slide is provided is also provided with a lifting slide hole, and one end of the connecting seat passes through the lifting slide hole and is connected to the lifting slide.

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