An automatic grounding loop device for the end of an electrical wire

Abstract

This utility model discloses an automatic grounding ring device for the tail of an electric wire, including a base, on which an upper mold base and a lower mold base are respectively arranged. The upper mold base includes a movable block that is movably arranged on the base and a rivet knife arranged on the movable block, as well as a driving component arranged on the base to drive the movable block to move up and down. The lower mold base includes a base and a conveying groove arranged on the base. A receiving block is provided on one side of the base corresponding to the output end of the conveying groove. The receiving block and the rivet knife can be fitted into each other. A positioning component and a limiting component are respectively provided on the base near the output end of the conveying groove. The positioning component includes a positioning column that is movably arranged in the conveying groove and positioning clamps located on both sides of the conveying groove, as well as a driving component for driving the positioning column and the two clamps to move. The limiting component includes a third cylinder arranged on the base and a baffle arranged on the drive shaft of the third cylinder. The baffle is movably arranged on the base and located on one side of the receiving block.

Description

Technical Field

[0001] This utility model specifically relates to an automatic grounding ring device for the end of an electrical wire. Background Technology

[0002] In the field of wire processing, the installation of a grounding ring at the end of the wire is a crucial step in ensuring the safety of wire grounding. The ring terminal must be fixed to the end of the wire via riveting to form a stable grounding structure. However, existing methods for positioning the ring terminal only employ "single-sided clamping" or "single-direction positioning," failing to provide separate positioning for the "inner ring" and "terminal." This leads to potential posture deviations when the terminal is transported to the riveting position (such as terminal lifting or inner ring misalignment), causing misalignment between the riveting tool and the terminal, ultimately resulting in quality defects such as terminal deformation and loose connection between the wire and the terminal. Utility Model Content

[0003] In view of the defects of the existing technology, the technical problem to be solved by this utility model is to provide an automatic grounding ring device for the end of an electric wire.

[0004] An automatic grounding ring device for the tail of an electrical wire includes a base, on which an upper mold base and a lower mold base are respectively disposed. The upper mold base includes a movable block that is movably disposed on the base and a rivet knife disposed on the movable block, as well as a driving component disposed on the base that can drive the movable block to move up and down. The lower mold base includes a base and a conveying groove disposed on the base. A receiving block is provided on one side of the base corresponding to the output end of the conveying groove. The receiving block and the rivet knife can be correspondingly fitted together. A positioning component and a limiting component are respectively provided on the base near the output end of the conveying groove. The positioning component includes a positioning column that is movably disposed in the conveying groove, and positioning clamps located on both sides of the conveying groove that can move relatively closer or further away, as well as a driving component for driving the positioning column and the two clamps to move. The limiting component includes a third cylinder mounted on the base and a baffle mounted on the drive shaft of the third cylinder. The baffle is movably mounted on the base and located on one side of the receiving block. The baffle limits the connection end of the annular terminal in the conveying groove to be on the receiving block, while the inner ring of the corresponding annular terminal is in the conveying groove and cooperates with the positioning post.

[0005] In one embodiment, the drive assembly includes two first cylinders, which are disposed on the base, and the drive shafts of the two first cylinders are respectively connected to the clamping blocks one by one. A protrusion is provided on one side of one of the clamping blocks, and a guide slope and a plane are sequentially connected to the upper side of the protrusion. The lower end of the positioning post is an arc surface, and the arc surface abuts against the guide slope and the plane in sequence.

[0006] In one embodiment, a pushing member is provided on the base at the input end of the conveying groove; the pushing member includes a second cylinder and a pushing block, the pushing block is movably disposed in the conveying groove and is connected to the second cylinder, the second cylinder drives the pushing block to push the annular terminal in the conveying groove onto the receiving block.

[0007] In one embodiment, a guide rail is connected to the input end of the conveying trough on the base. An opening is provided through the bottom side of the output end of the guide rail. The push block is located in the opening, and one side of the push block is coplanar with the bottom inclined surface of the guide rail.

[0008] In one embodiment, the input end of the guide rail is connected to a linear vibrating feeder, and a photoelectric sensor is provided at the input end of the guide rail.

[0009] In one embodiment, a positioning seat is provided on the base on one side of the receiving block, and the upper end of the positioning seat has a positioning groove that can guide and position the wire.

[0010] In one embodiment, the base is provided with guide grooves through both sides of the conveying groove, and the two clamps are respectively movably disposed in the guide grooves.

[0011] In summary, the advantages of this utility model over the prior art are: The baffle of the limiting component of this utility model can accurately limit the position of the terminal wire end and the inner ring, ensuring that the terminal is always in the optimal riveting posture of "wire end support and inner ring positioning". Furthermore, through the combined design of "positioning post (vertical positioning inner ring) + positioning clamp (horizontal positioning both sides)", the three-dimensional precise positioning of the ring terminal is realized, which completely solves the terminal offset problem caused by the single-direction positioning of the existing device. The riveting alignment error can be controlled within ±0.1mm. Attached Figure Description

[0012] Figure 1 This is a perspective view of an automatic grounding ring device for the tail of an electrical wire according to one embodiment of the present invention; Figure 2 This is a top view of an automatic grounding ring device for the tail of an electrical wire in one embodiment of the present invention; Figure 3 As one embodiment of this utility model Figure 2 A schematic diagram of the AA cross-section; Figure 4 As one embodiment of this utility model Figure 3 Enlarged view of point A; Figure 5 As one embodiment of this utility model Figure 2 BB cross-sectional diagram; Figure 6As one embodiment of this utility model Figure 5 Enlarged diagram of point B. Detailed Implementation

[0013] The present invention will be further described below with reference to the accompanying drawings and specific embodiments: like Figures 1 to 6 The present invention preferably provides an automatic grounding ring device for the end of an electrical wire, comprising a base 1, on which an upper mold base and a lower mold base are respectively disposed. The upper mold base includes a movable block 2 movably disposed on the base 1 and a rivet 3 disposed on the movable block 2, and a driving member disposed on the base 1 to drive the movable block 2 to move up and down. The lower mold base comprises a base 1 and a conveying groove 5 disposed on the base 1. A receiving block 6 is provided on one side of the base 1 corresponding to the output end of the conveying groove 5. The receiving block 6 and the rivet 3 can be correspondingly engaged. A fixed... Positioning and limiting components; wherein, the positioning component includes a positioning column 7 that is movably disposed in the conveying groove 5, and positioning clamps 8 located on both sides of the conveying groove 5 that can move relatively closer or further away, and a driving assembly 9 for driving the positioning column 7 and the two clamps 8 to move; the limiting component includes a third cylinder 10 disposed on the base 1 and a baffle 11 disposed on the drive shaft of the third cylinder 10. The baffle 11 is movably disposed on the base 1 and located on one side of the receiving block 6. The baffle 11 limits the terminal of the annular terminal in the conveying groove 5 to be on the receiving block 6, while the inner ring of the corresponding annular terminal is in the conveying groove 5 and cooperates with the positioning column 7.

[0014] Specifically, the upper mold base is assembled above the base: the movable block is slidably connected to the base via a slide rail (not marked in the figure), the rivet is fixed to the lower end face of the movable block by bolts, and the driving component (not marked in the figure) is preferably a hydraulic cylinder or a servo cylinder. The cylinder body is fixed to the top of the base, and its drive shaft is rigidly connected to the upper end face of the movable block, which can drive the movable block to drive the rivet to move up and down reciprocally. The lower mold base is detachably connected to the base by bolts: the conveying groove is opened along the length of the base (the groove width is adapted to the outer diameter of the annular terminal), the receiving block is fixed to one side of the base by screws, and the upper end face of the receiving block is provided with a fitting groove that matches the shape of the rivet (to ensure that the rivet and the receiving block are accurately aligned during riveting); the positioning component and the limiting component are respectively installed on the base near the output end of the conveying groove.

[0015] The positioning pin is slidably installed in the through hole at the bottom of the conveying trough through the guide sleeve (not marked in the figure), and its upper end can extend out of the top surface of the conveying trough; the two positioning clamps are slidably connected to the bases on both sides of the conveying trough through the slider-guide rail structure; the drive component provides power to the positioning clamps, which can drive the two clamps to move closer or further away from each other along the guide rail. When the annular terminal is conveyed to the output end of the conveying trough, the drive assembly first drives the two positioning blocks to move closer to each other, clamping the two sides of the terminal in the horizontal direction to achieve horizontal positioning of the terminal; at the same time, the positioning column moves upward and inserts into the inner ring of the terminal, restricting the displacement of the inner ring of the terminal in the vertical direction, forming a three-dimensional positioning of "horizontal + vertical"; the cylinder body of the third cylinder is fixed on the base by the bracket, and the baffle is slidably connected to the side of the receiving block near the conveying trough by the linear bearing (not marked in the figure); the drive shaft of the third cylinder is fixedly connected to the lower end of the baffle, which can drive the baffle to move up and down along the linear bearing. The third cylinder drives the baffle to rise. When the terminal is pushed to the vicinity of the receiving block, the end of the terminal abuts against the baffle. At this time, the baffle restricts the terminal wiring end, ensuring that the terminal is in the preset posture of "the wiring end is completely placed on the receiving block and the inner ring is still in the conveying groove", which is ready for subsequent riveting.

[0016] Furthermore, the drive assembly 9 includes two first cylinders 12, which are disposed on the base 1, and the drive shafts of the two first cylinders 12 are respectively connected to the clamping blocks 8 one by one. A protrusion 13 is provided on one side of one of the clamping blocks 8. A guide slope 14 and a plane 15 are sequentially connected to the upper side of the protrusion 13. The lower end of the positioning post 7 is an arc surface, which abuts against the guide slope 14 and the plane 15 in sequence.

[0017] Specifically, when the terminal needs to be positioned, the two first cylinders start synchronously, driving the two positioning clamps to move closer to each other; the right clamp moves the protrusion to the left, and the guide slope of the protrusion first contacts the lower arc surface of the positioning post. As the clamp continues to move to the left, the positioning post slides upward along the guide sleeve under the guidance of the guide slope; when the two positioning clamps fully clamp the terminal, the lower arc surface of the positioning post just slides onto the plane of the protrusion. At this time, the upper end of the positioning post extends out of the top surface of the conveying groove and inserts into the inner ring of the terminal, completing the synchronous action of "horizontal clamping + vertical positioning"; after positioning is completed, the two first cylinders drive the clamps to move away, the protrusion moves to the right with the right clamp, and the positioning post slides down along the guide slope to reset under the action of gravity.

[0018] Furthermore, a pushing component is provided on the base 1 at the input end of the conveying groove 5; the pushing component includes a second cylinder 16 and a pushing block 17, the pushing block 17 is movably disposed in the conveying groove 5 and is connected to the second cylinder 16, and the second cylinder 16 drives the pushing block 17 to push the annular terminal in the conveying groove 5 onto the receiving block 6.

[0019] Specifically, the second cylinder drives the shaft to extend, causing the push block to slide along the slide groove towards the output end of the conveying groove; the push block pushes the terminal to move along the conveying groove until the terminal wiring end is completely placed on the receiving block and the inner ring and positioning post are still in contact; after being pushed into place, the second cylinder drives the shaft to retract, causing the push block to reset to the input end of the conveying groove, waiting for the next terminal.

[0020] Furthermore, the base 1 is connected to the input end of the conveying trough 5 by a guide rail 18. The bottom side of the output end of the guide rail 18 is provided with an opening 19. The push block 17 is located in the opening 19, and one side of the push block 17 is coplanar with the bottom inclined surface of the guide rail 18.

[0021] Specifically, the annular terminal slides in from the input end of the guide rail and slides down the inclined surface. Because the side of the push block is coplanar with the inclined surface, the terminal can smoothly slide through the opening and enter the conveying groove. When the terminal reaches the pushing position, the push block extends out from the opening and pushes the terminal along the conveying groove. After the pushing is completed, the push block retracts into the opening, without affecting the subsequent sliding of the terminal.

[0022] Furthermore, the input end of the guide rail 18 is connected to a linear vibrating feeder 20, and a photoelectric sensor is provided at the input end of the guide rail 18.

[0023] Specifically, the linear vibrating feeder is a relatively mature existing technology, and its structural principle will not be described in detail here. A photoelectric sensor (preferably diffuse reflection type, model E3Z-D61) is mounted above the input end of the guide rail via a bracket. The sensor's detection direction is perpendicular to the bottom surface of the guide rail, and its detection range covers the groove area of ​​the guide rail. The photoelectric sensor and the controller of the linear vibrating feeder are connected via signal lines to form a closed-loop control. When the linear vibrating feeder outputs a terminal to the guide rail, the sensor sends a signal to the controller, and the linear vibrating feeder stops vibrating and pauses feeding. When the second cylinder drives the pusher block to reset the terminal, the linear vibrating feeder restarts and outputs the next terminal.

[0024] Furthermore, a positioning seat 21 is provided on one side of the receiving block 6 on the base 1. The upper end of the positioning seat 21 has a recessed positioning groove 22 for guiding and positioning the wire. Specifically, before performing the ringing operation, the operator places the end of the wire (the conductor part after stripping) into the positioning groove. The V-shaped positioning groove automatically aligns the wire through the inclined surfaces on both sides (suitable for multiple specifications of wires with diameters of 0.5-2.5mm). Under the guidance of the positioning groove, the end of the wire naturally extends above the terminal wiring end. At this time, the alignment deviation between the wire conductor and the terminal wiring end is <0.08mm, which meets the riveting requirements.

[0025] Furthermore, the base 1 has guide grooves 23 extending through both sides of the conveying groove 5, and the two clamping plates 8 are respectively movably arranged in the guide grooves 23.

[0026] The foregoing has shown and described the basic principles and main features of this utility model, as well as its advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An automatic grounding ring device for the tail of an electrical wire, comprising a base (1), wherein an upper mold base and a lower mold base are respectively disposed on the base (1), the upper mold base comprising a movable block (2) movably disposed on the base (1) and a rivet (3) disposed on the movable block (2), and a driving component disposed on the base (1) capable of driving the movable block (2) to move up and down, characterized in that: The lower mold base includes a base (1) and a conveying groove (5) disposed on the base (1). A receiving block (6) is provided on one side of the base (1) corresponding to the output end of the conveying groove (5). The receiving block (6) can be fitted into the rivet (3). A positioning component and a limiting component are respectively provided on the output end of the base (1) near the conveying groove (5). The positioning component includes a positioning column (7) that is movably disposed in the conveying groove (5), a positioning clamp (8) located on both sides of the conveying groove (5) that can move relatively closer or further away, and a driving component (9) for driving the positioning column (7) and the two clamps (8) to move. The limiting component includes a third cylinder (10) disposed on the base (1) and a baffle (11) disposed on the drive shaft of the third cylinder (10). The baffle (11) is movably disposed on the base (1) and located on one side of the receiving block (6). The baffle (11) limits the wiring end of the annular terminal in the conveying groove (5) to be on the receiving block (6), while the inner ring of the corresponding annular terminal is in the conveying groove (5) and cooperates with the positioning column (7).

2. An automatic wire end grounding ring device according to claim 1, characterized in that: The drive assembly (9) includes two first cylinders (12), which are mounted on the base (1). The drive shafts of the two first cylinders (12) are connected to the clamping blocks (8) one by one. A protrusion (13) is provided on one side of one of the clamping blocks (8). A guide slope (14) and a plane (15) are connected sequentially on the upper side of the protrusion (13). The lower end of the positioning post (7) is an arc surface, which abuts against the guide slope (14) and the plane (15) in sequence.

3. An automatic wire end grounding ring device according to claim 1, characterized in that: The base (1) is provided with a pushing component at the input end of the conveying groove (5); the pushing component includes a second cylinder (16) and a push block (17). The push block (17) is movably disposed in the conveying groove (5) and is connected to the second cylinder (16). The second cylinder (16) drives the push block (17) to push the annular terminal in the conveying groove (5) onto the receiving block (6).

4. An automatic wire end grounding ring device according to claim 3, characterized in that: The base (1) is connected to the input end of the conveying trough (5) by a guide rail (18). The bottom side of the output end of the guide rail (18) is provided with an opening (19). The push block (17) is located in the opening (19), and one side of the push block (17) is coplanar with the bottom inclined surface of the guide rail (18).

5. An automatic wire end grounding ring device according to claim 4, characterized in that: The input end of the guide rail (18) is connected to a linear vibrating feeder (20), and a photoelectric sensor is provided at the input end of the guide rail (18).

6. An automatic wire end grounding ring device according to claim 1, characterized in that: The base (1) is provided with a positioning seat (21) on one side of the receiving block (6), and the upper end of the positioning seat (21) has a positioning groove (22) that can guide and position the wire.

7. An automatic wire end grounding ring device according to claim 1, characterized in that: The base (1) is provided with guide grooves (23) on both sides of the conveying groove (5), and the two clamping blocks (8) are respectively movably set in the guide grooves (23).

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