Wire plugging mechanism with buffer device

Abstract

The utility model relates to the technical field of wire plugging mechanisms, and discloses a wire plugging mechanism with a buffer device, which comprises a wire plugging clamp and a driving mechanism used for driving the wire plugging clamp to move to plug a wire rod, the driving mechanism comprises an X-axis driving device, a Y-axis driving device and a Z-axis driving device which are connected in sequence, and the wire plugging clamp is arranged on the Z-axis driving device; the device further comprises a buffer device used for buffering wire plugging force, the buffer device comprises a buffer spring and a buffer track, the buffer track is arranged on the Z-axis driving device, the wire plugging clamp is slidably connected with the buffer track, one end of the buffer spring is connected with the buffer track, and the other end of the buffer spring abuts against the wire plugging clamp. According to the utility model, the buffer device is additionally arranged between the driving mechanism and the wire plugging clamp to buffer the wire plugging force, so that the plugging force of the wire plugging mechanism is better controlled, the excessive plugging of wires is effectively prevented, and the yield is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wire insertion mechanisms, in particular to a wire insertion mechanism with a buffer device. Background Art

[0002] A terminal connector is a connector used to connect electronic devices. It has multiple pins or sockets for transmitting current, signals or data. Terminal connectors are widely used in electronic devices, circuit boards, wires and cables, etc. to connect and fix electronic components and realize the connection and transmission functions of circuits.

[0003] The forming process of the terminal connector includes two parts. One is the forming of the terminal wire, which includes the steps of cutting, stripping, tinning and terminal taping of the wire; the other is the forming of the connector, which is to insert the formed terminal wire into the inside of the plastic shell to form a complete terminal connector. In the latter step, the plug-in action is often achieved through a plug-in mechanism, but the existing plug-in mechanism consists of only two parts: a wire clamp and a driving mechanism, which makes it difficult to control the force when the driving mechanism drives the wire clamp to plug the wire. If the force is too small, the wire is easy to be not plugged in properly and the plugging is unsuccessful; if the force is too large, it is very easy for the terminal and the plastic shell to be over-plugged, and a collision occurs inside. Both are very easy to be damaged, resulting in a high defective rate of the product, and more costs are required to make up for this problem. In view of this, the inventor made a new invention. Utility Model Content

[0004] The utility model aims to provide a wire insertion mechanism with a buffer device in view of the deficiencies in the prior art, which has the characteristics of low defect rate and low production cost.

[0005] To achieve the above-mentioned purpose, the utility model is a wire insertion mechanism with a buffer device, including a wire insertion clamp and a driving mechanism for driving the wire insertion clamp to move and insert wires, the driving mechanism including an X-axis driving device, a Y-axis driving device and a Z-axis driving device connected in sequence, the wire insertion clamp is arranged on the Z-axis driving device, and the X-axis driving device, the Y-axis driving device and the Z-axis driving device cooperate to drive the wire insertion clamp to reciprocate along the X, Y and Z axis directions; it also includes a buffer device for buffering the wire insertion force, the buffer device includes a buffer spring and a buffer rail, the buffer rail is arranged on the Z-axis driving device and the wire insertion clamp is slidably connected to the buffer rail, one end of the buffer spring is connected to the buffer rail, and the other end abuts the wire insertion clamp.

[0006] Furthermore, the X-axis driving device includes a first driving motor and an X-axis linear module, and the first driving motor drives the Y-axis driving device to move along the direction of the X-axis linear module.

[0007] Furthermore, the Y-axis driving device includes a second driving motor and a Y-axis linear module, and the second driving motor drives the Z-axis driving device to move along the direction of the Y-axis linear module.

[0008] Preferably, the Y-axis linear module is provided with a limit plate, the limit plate is movably connected to the wire plug clamp, and the limit plate is provided with a limit sliding groove adapted to the wire plug clamp.

[0009] Furthermore, the Z-axis driving device includes a driving cylinder and a Z-axis linear module, and the driving cylinder drives the wire clamp to move along the direction of the Z-axis linear module.

[0010] Preferably, a positioning clamp for assisting in positioning the end of the wire is provided between the Z-axis linear module and the wire plug clamp.

[0011] Furthermore, the positioning clamping plate includes a first positioning plate and a second positioning plate that are arranged opposite to each other, and the first positioning plate and the second positioning plate form a positioning channel that is narrow at the rear and wide at the front.

[0012] Furthermore, the wire clamp includes a box body, a power block is arranged in the box body, the power block is hinged with a first connecting arm and a second connecting arm, the first connecting arm is hinged with a first clamping arm, the second connecting arm is hinged with a second clamping arm, limiting openings are arranged on both sides of the box body, a limiting block cooperating with the limiting opening is arranged in the box body, the first clamping arm and the second clamping arm are both hinged with the limiting block; it also includes a power device, the power device is provided with a push rod, and the front end of the push rod is fixedly connected to the power block.

[0013] Furthermore, the limiting block is provided with a protrusion protruding outward, and the protrusion cooperates with the limiting opening.

[0014] Furthermore, the first clamping arm is provided with a first slot, the second clamping arm is provided with a second slot, and a first spring is provided between the first slot and the second slot.

[0015] Beneficial effects: Compared with the prior art, the utility model is a wire insertion mechanism with a buffer device, including a wire insertion clamp and a driving mechanism for driving the wire insertion clamp to move the plug-in wire, and also includes a buffer device for buffering the wire insertion force; the utility model has the following advantages: 1. The improved structure and the addition of a buffer device can buffer the wire insertion force of the terminal wire and effectively improve the yield rate of the terminal connector; 2. The single-time plug-in success rate is high, the production efficiency is high, and the preparation cost can be significantly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0017] Figure 2 It is a schematic diagram of the driving mechanism structure of the utility model.

[0018] Figure 3 It is a schematic diagram of the structure of the buffer device of the utility model.

[0019] Figure 4 It is a schematic diagram of the limit plate structure of the utility model.

[0020] Figure 5 This is a schematic diagram of the positioning splint structure of the utility model.

[0021] Figure 6 It is a cross-sectional schematic diagram of the wire plug clamp of the present utility model.

[0022] Figure 7 The utility model is a schematic diagram of the exploded structure of the wire plug clamp.

[0023] Reference numerals include:

[0024] Plug clamp--1, box--11, power block--12, first connecting arm--13, first clamping arm--131, first slot--132, second connecting arm--14, second clamping arm--141, second slot--142, limit opening--15, limit block--16, protrusion--161, power device--17, push rod--171, first spring--18, driving mechanism--2, X-axis driving device--21, first driving motor--211 , X-axis linear module--212, Y-axis driving device--22, second driving motor--221, Y-axis linear module--222, limiting plate--223, limiting slide groove--224, Z-axis driving device--23, driving cylinder--231, Z-axis linear module--232, buffer device--3, buffer spring--31, buffer rail--32, positioning clamp--4, first positioning plate--41, second positioning plate--42, positioning channel--43. DETAILED DESCRIPTION

[0025] The following is combined with Figures 1 to 7 The utility model is described in detail.

[0026] The utility model is a wire insertion mechanism with a buffer device 3, including a wire insertion clamp 1 and a driving mechanism 2 for driving the wire insertion clamp 1 to move and insert wires, the driving mechanism 2 includes an X-axis driving device 21, a Y-axis driving device 22 and a Z-axis driving device 23 connected in sequence, the wire insertion clamp 1 is arranged on the Z-axis driving device 23, the X-axis driving device 21, the Y-axis driving device 22 and the Z-axis driving device 23 cooperate to drive the wire insertion clamp 1 to reciprocate along the X, Y and Z axis directions, so as to realize the movement of the wire insertion clamp 1 to any position so as to insert the wires into the inside of the plastic shell. It also includes a buffer device 3 for buffering the force of wire insertion, the buffer device 3 includes a buffer spring 31 and a buffer track 32, the buffer track 32 is arranged on the Z-axis driving device 23 and the wire insertion clamp 1 is slidably connected to the buffer track 32, one end of the buffer spring 31 is connected to the buffer track 32, and the other end abuts against the wire insertion clamp 1.

[0027] When the plug-in clamp 1 moves backward under the drive of the Y-axis drive device 22 to plug in the wire, in order to ensure that the wire is plugged in place, the plug-in force is generally controlled to be slightly greater than the clamping force between the terminal and the plastic shell. However, if there is no buffer device 3, the extra force is difficult to control. After the buffer device 3 is installed, the plug-in clamp 1 can be immediately controlled to release the wire when the plug-in clamp 1 just plugs the terminal into the plastic shell, and the buffer spring 31 can be used to drive the plug-in clamp 1 to move forward along the buffer track 32, and the plug-in clamp 1 is ejected to ensure that the terminal will not be plugged in excessively and damage the plastic shell, effectively improving the yield rate of the terminal connector. On the other hand, under the action of the buffer device 3, the terminal wire can be successfully plugged in at a single time, which can also improve the production efficiency of the terminal connector and reduce its production cost.

[0028] In this technical solution, the X-axis driving device 21 includes a first driving motor 211 and an X-axis linear module 212 , and the first driving motor 211 drives the Y-axis driving device 22 to move along the direction of the X-axis linear module 212 .

[0029] As another embodiment, the Y-axis driving device 22 includes a second driving motor 221 and a Y-axis linear module 222 , and the second driving motor 221 drives the Z-axis driving device 23 to move along the direction of the Y-axis linear module 222 .

[0030] As another embodiment, the Z-axis driving device 23 includes a driving cylinder 231 and a Z-axis linear module 232 , and the driving cylinder 231 drives the plug-in clamp 1 to move along the direction of the Z-axis linear module 232 .

[0031] The X-axis driving device 21, the Y-axis driving device 22 and the Z-axis driving device 23 are each a power mechanism and form a complete three-axis driving mechanism 2 to drive the plug-in clamp 1 to move to any position for plugging in wires.

[0032] Preferably, the Y-axis linear module 222 is provided with a limit plate 223, the limit plate 223 is movably connected to the plug-in clamp 1, and the limit plate 223 is provided with a limit slide groove 224 adapted to the plug-in clamp 1. When the driving cylinder 231 drives the plug-in clamp 1 to reciprocate up and down along the Z-axis linear module 232, the other side of the plug-in clamp 1 will also move along the limit slide groove 224 of the limit plate 223, thereby improving the stability of the movement of the plug-in clamp 1.

[0033] In order to further improve the technical solution, a positioning clamp 4 for assisting in positioning the end of the wire is further provided between the Z-axis linear module 232 and the plug-in clamp 1 .

[0034] As an embodiment, the positioning clamp plate 4 includes a first positioning plate 41 and a second positioning plate 42 that are arranged opposite to each other, and the first positioning plate 41 and the second positioning plate 42 form a positioning channel 43 that is narrow at the back and wide at the front. When the wire is sent from the external wire feeding clamp to the plug-in clamp 1, the wire passes through the wide end of the positioning channel 43 and is guided and positioned by the gradually narrowing positioning channel 43, and then the plug-in clamp 1 clamps the wire and inserts the positioned terminal wire into the plastic shell. The positioning clamp plate 4 can assist in positioning the wire so as to facilitate subsequent precise plug-in of the wire.

[0035] In the present technical solution, the plug clamp 1 includes a box body 11, a power block 12 is arranged in the box body 11, the power block 12 is hinged with a first connecting arm 13 and a second connecting arm 14, the first connecting arm 13 is hinged with a first clamping arm 131, the second connecting arm 14 is hinged with a second clamping arm 141, limiting openings 15 are arranged on both sides of the box body 11, a limiting block 16 cooperating with the limiting opening 15 is arranged in the box body 11, the first clamping arm 131 and the second clamping arm 141 are both hinged with the limiting block 16; it also includes a power device 17, the power device 17 is provided with a push rod 171, and the front end of the push rod 171 is fixedly connected to the power block 12. The power device 17 is a cylinder, and the inner angle of the hinge between the first connecting arm 13 and the first clamping arm 131, the second connecting arm 14 and the second clamping arm 141 is less than 180° and greater than 120°. The working principle of the present invention is as follows: ①, the cylinder provides power to push the power block 12, and the power block 12 continues to push the first connecting arm 13, the second connecting arm 14, the first clamping arm 131, the second clamping arm 141 and the limit block 16 forward; ②, after the limit block 16 moves a certain distance, it is stuck by the limit opening 15 and stops moving. Because the first clamping arm 131 and the second clamping arm 141 are hinged to the limit block 16, the first clamping arm 131 and the second clamping arm 141 also stop moving forward; ③, the power block 12 continues to push the first connecting arm 13 and the second connecting arm 14 forward. At this time, the first connecting arm 1 3, the position where the first clamp arm 131 and the second clamp arm 14 are hinged to the second clamp arm 141 is stressed and stretched outward, and the hinged position where the limit block 16 is hinged to the first clamp arm 131 and the second clamp arm 141 is used as a fulcrum, so that the front ends of the first clamp arm 131 and the second clamp arm 141 are brought inward to form a clamping structure to clamp the wire; ④, the cylinder retracts the push rod 171, pulling the power block 12, and the power block 12 pulls back the first connecting arm 13, the second connecting arm 14, the first clamp arm 131, the second clamp arm 141 and the limit block 16; ⑤, the position where the first connecting arm 13 and the second connecting arm 14 are hinged to the first clamp arm 131 and the second clamp arm 141 is affected by the pulling force and shrinks back, and the front ends of the first clamp arm 131 and the second clamp arm 141 are separated, and the clamped wire is released, completing the wire releasing action.

[0036] The wire clamp 1 of the present technical solution only needs one cylinder to realize the clamping action, has a simple structure, low manufacturing cost, and saves the space occupied by the wire clamping device in the terminal machine equipment; because only one cylinder is used, the wire clamping device will immediately clamp the wire after it is lowered, with high speed and high work efficiency. At the same time, the prior art uses the precise coordination control required by the double cylinders, while the present invention is easier to control because it uses a power device 17 such as a cylinder.

[0037] Preferably, the limit block 16 is provided with a protruding block 161 protruding outward, and the protruding block 161 cooperates with the limit opening 15. The wire clamping device of the terminal machine usually clamps the wire downward, and when the power device 17 drives the power block 12 to continue to push downward, the protruding block 161 will be pressed by the lower end of the limit opening 15, thereby stopping the limit block 16, the first clamping arm 131 and the second clamping arm 141 from moving, and a squeezing force is formed between the limit block 16 and the power block 12, and the power block 12 continues to push downward, driving the first clamping arm 131 and the second clamping arm 141 to close their downward front ends, completing the wire clamping action; similarly, the power device 17 When the driving power block 12 is continuously pulled upward, a pulling force is formed between the limit block 16 and the power block 12, pulling the limit block 16 upward, and at the same time, the upward ends of the first clamp arm 131 and the second clamp arm 141 are pulled together, and the downward front ends will separate to release the clamped wire. When the protrusion 161 is supported by the upper end of the limit opening 15, the limit block 16 stops moving upward, and the front ends of the first clamp arm 131 and the second clamp arm 141 are opened to the maximum extent, and the rising action and wire release action of the wire clamping device are completed. By using the method of cooperating with the protrusion 161 and the limit opening 15, the descending depth of the wire clamping device can be intuitively seen, and fillers can be added to the limit opening 15 to adjust the position where the limit block 16 stays, thereby adjusting the descending depth of the wire clamping device.

[0038] Preferably, the first clamp arm 131 is provided with a first slot 132, the second clamp arm 141 is provided with a second slot 142, and a first spring 18 is provided between the first slot 132 and the second slot 142. The limit block 16 has friction with the box body 11 when moving up and down, so when the limit block 16 descends or rises, the timing of the front ends of the first clamp arm 131 and the second clamp arm 141 closing or separating is unstable. In order to improve stability, the inventors provide the first spring 18 at the front ends of the first clamp arm 131 and the second clamp arm 141.

[0039] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The contents of this specification should not be understood as limiting the present invention.

Claims

1. A wire insertion mechanism with a buffer device, comprising a wire insertion clamp (1) and a driving mechanism (2) for driving the wire insertion clamp (1) to move and insert wires, characterized in that: The driving mechanism (2) comprises an X-axis driving device (21), a Y-axis driving device (22) and a Z-axis driving device (23) which are connected in sequence, the plug-in clamp (1) being arranged on the Z-axis driving device (23), and the X-axis driving device (21), the Y-axis driving device (22) and the Z-axis driving device (23) being used in cooperation to drive the plug-in clamp (1) to reciprocate along the X-axis, Y-axis and Z-axis directions; and further comprising a buffer device (3) for buffering the plug-in force, the buffer device (3) comprising a buffer spring (31) and a buffer track (32), the buffer track (32) being arranged on the Z-axis driving device (23) and the plug-in clamp (1) being slidably connected to the buffer track (32), one end of the buffer spring (31) being connected to the buffer track (32) and the other end being abutted against the plug-in clamp (1).

2. A wire insertion mechanism with a buffer device according to claim 1, characterized in that: The X-axis driving device (21) comprises a first driving motor (211) and an X-axis linear module (212); the first driving motor (211) drives the Y-axis driving device (22) to move along the direction of the X-axis linear module (212).

3. A wire insertion mechanism with a buffer device according to claim 1, characterized in that: The Y-axis driving device (22) comprises a second driving motor (221) and a Y-axis linear module (222), and the second driving motor (221) drives the Z-axis driving device (23) to move along the direction of the Y-axis linear module (222).

4. A wire insertion mechanism with a buffer device according to claim 3, characterized in that: The Y-axis linear module (222) is provided with a limit plate (223), the limit plate (223) is movably connected to the plug-in clamp (1), and the limit plate (223) is provided with a limit sliding groove (224) adapted to the plug-in clamp (1).

5. The wire insertion mechanism with a buffer device according to claim 1, characterized in that: The Z-axis driving device (23) comprises a driving cylinder (231) and a Z-axis linear module (232), and the driving cylinder (231) drives the plug-in clamp (1) to move along the direction of the Z-axis linear module (232).

6. A wire insertion mechanism with a buffer device according to claim 5, characterized in that: A positioning clamp (4) for assisting in positioning the end of the wire is also provided between the Z-axis linear module (232) and the wire plug clamp (1).

7. A wire insertion mechanism with a buffer device according to claim 6, characterized in that: The positioning clamping plate (4) comprises a first positioning plate (41) and a second positioning plate (42) which are arranged opposite to each other, and the first positioning plate (41) and the second positioning plate (42) form a positioning channel (43) which is narrow at the rear and wide at the front.

8. The wire insertion mechanism with a buffer device according to claim 1, characterized in that: The plug-in clamp (1) comprises a box body (11), a power block (12) is arranged in the box body (11), the power block (12) is hinged with a first connecting arm (13) and a second connecting arm (14), the first connecting arm (13) is hinged with a first clamping arm (131), the second connecting arm (14) is hinged with a second clamping arm (141), limiting openings (15) are arranged on both sides of the box body (11), a limiting block (16) matched with the limiting opening (15) is arranged in the box body (11), the first clamping arm (131) and the second clamping arm (141) are both hinged with the limiting block (16); and the power device (17) is also provided with a push rod (171), the front end of the push rod (171) is fixedly connected to the power block (12).

9. A wire insertion mechanism with a buffer device according to claim 8, characterized in that: The limiting block (16) is provided with a protrusion (161) protruding outwards, and the protrusion (161) cooperates with the limiting opening (15).

10. The wire insertion mechanism with a buffer device according to claim 8, characterized in that: The first clamp arm (131) is provided with a first slot (132), the second clamp arm (141) is provided with a second slot (142), and a first spring (18) is provided between the first slot (132) and the second slot (142).

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