Tubular terminal multi-surface crimping device

Abstract

The utility model discloses a tubular terminal multi-surface crimping device, and relates to the technical field of tubular terminal crimping. The crimping die comprises an upper crimping die and a lower crimping die which are oppositely arranged. A driving device and a slope pressing block are arranged on the upper crimping die, the driving device is connected to the top of the upper crimping die, and the slope pressing block is fixed to the side wall of the upper crimping die; a multi-face crimping assembly is arranged on the side wall, located below the inclined face pressing block, of the lower crimping die and comprises a fixed disc and a plurality of rotary crimping blocks arranged on the fixed disc in a radial mode, and a positioning shaft perpendicularly fixed to the fixed disc is arranged in the middle of each rotary crimping block in a penetrating mode. The end, close to the radiation center, of the rotary crimping block is provided with a crimping inclined face, the end, away from the radiation center, of the rotary crimping block is connected with a rotary ring, and the rotary ring is provided with a clamping protruding part and a reset piece. The crimping device can adapt to tubular terminals of various specifications, and can avoid the situation that the tubular terminals are stuck to the die after being crimped.

Description

Technical Field

[0001] The utility model relates to the technical field of tubular terminal crimping, in particular to a tubular terminal multi-surface crimping device. Background Art

[0002] The following steps are involved in the processing of wire harnesses: first, the insulation of the wire is stripped off, then the exposed metal part of the wire is inserted into the tubular terminal, and finally, the tubular terminal is squeezed and crimped onto the wire through a crimping device, thereby firmly connecting the two together.

[0003] However, the existing crimping devices generally use a two-sided crimping technology to crimp the tubular terminals, that is, the upper and lower crimping molds respectively drive the upper and lower crimping blocks to crimp the tubular terminals on both sides. Since the sizes of the concave structures and convex structures respectively provided on the upper and lower crimping blocks are fixed, a set of upper and lower crimping blocks can only crimp tubular terminals of one specification. Different specifications require manual replacement of the upper and lower crimping blocks of corresponding specifications, resulting in low production efficiency. In addition, when the upper and lower crimping blocks are crimped, the tubular terminals are squeezed in the concave structure. After the crimping is completed, the tubular terminals may stick to the concave structure, thereby causing the problem of material stripping. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a multi-faceted crimping device for tubular terminals, which can adapt to tubular terminals of various specifications and avoid the problem of mold sticking after the tubular terminals are crimped.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A multi-sided crimping device for a tubular terminal comprises an upper crimping die and a lower crimping die which are arranged relatively to each other; a driving device and an inclined surface pressing block are provided on the upper crimping die, the driving device is connected to the top of the upper crimping die, and is used to drive the upper crimping die to move up and down, and the inclined surface pressing block is fixed to the side wall of the upper crimping die; a multi-sided crimping assembly is provided on the side wall of the lower crimping die below the inclined surface pressing block, the multi-sided crimping assembly comprises a fixed disk and a plurality of rotating crimping blocks radially arranged on the fixed disk, a positioning shaft vertically fixed to the fixed disk is passed through the middle of each rotating crimping block, each rotating crimping block can rotate around the positioning shaft, a crimping inclined surface is provided on the end of each rotating crimping block close to the radial center, and a rotating ring is connected to the end of all rotating crimping blocks away from the radial center, the rotating ring is provided with a clamping protrusion matching the inclined surface pressing block, and a reset member connected to the lower crimping die.

[0007] In some embodiments, the inner ring of the rotating ring is provided with a plurality of limiting notches that match the rotating crimping block at intervals along the circumferential direction; and one end of the rotating crimping block away from the radiation center is provided in the limiting notch.

[0008] In at least one embodiment, a cover plate is provided on the rotating ring; one end of the positioning shaft is vertically fixed on the fixed disk, and the other end is vertically connected to the cover plate.

[0009] Compared with the prior art, the present invention achieves at least the following beneficial effects:

[0010] (1) During the crimping process of the multi-faceted crimping assembly of the present invention, the inclined surface pressing block presses downward the cam portion of the rotating ring, thereby driving the rotating ring to simultaneously rotate clockwise, causing the plurality of rotating crimping blocks to be squeezed toward the center, shrinking the crimping channel, and thereby simultaneously pressing the plurality of crimping inclined surfaces against the tubular terminal. Since the size of the crimping channel is determined by the rotation angle of the rotating crimping block, and the rotation angle of the rotating crimping block is determined by the downward movement distance of the inclined surface pressing block, the moving distance of the inclined surface pressing block can be adjusted by the driving device to adapt to the crimping of tubular terminals of various specifications, thereby improving production efficiency.

[0011] (2) After the multi-faceted crimping assembly of the present invention is crimped, the inclined crimping block moves upward to reset, and the rotating ring rotates counterclockwise to reset under the action of the reset member, so that the multiple rotating crimping blocks rotate counterclockwise at the same time, the crimping channel opens, and the tubular terminal and the wire can be smoothly removed, avoiding the problem of the tubular terminal sticking to the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] One or more embodiments of the present invention will now be described, by way of example only, with reference to the accompanying drawings, in which:

[0013] Figure 1 This is a schematic structural diagram of an embodiment of the present utility model;

[0014] Figure 2 This is a schematic diagram of the exploded structure of the multi-sided crimping assembly according to an embodiment of the present utility model;

[0015] Figure 3 This is a schematic diagram of the connection structure of the rotary crimping block and the rotary ring according to an embodiment of the present utility model;

[0016] Figure 4 This is a structural schematic diagram of a rotary crimping block according to an embodiment of the present utility model.

[0017] The numbers in the figure are: 1. Upper crimping die; 11. Upper mounting groove; 2. Lower crimping die; 21. Lower mounting groove; 3. Inclined pressure block; 4. Multi-sided crimping assembly; 41. Fixed plate; 42. Rotating crimping block; 421. Positioning shaft; 422. Crimping inclined surface; 5. Rotating ring; 51. Clamping protrusion; 52. Limiting notch; 6. Reset member; 7. Cover plate; 8. Crimping ridge; 9. Tubular terminal. DETAILED DESCRIPTION

[0018] The present invention will be described in detail below with reference to the exemplary embodiments in the accompanying drawings. However, it should be understood that the present invention can be implemented in a variety of different forms and should not be construed as being limited to the embodiments described herein. These embodiments are provided herein to make the disclosure of the present application more complete and to fully convey the concepts of the present application to those skilled in the art.

[0019] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting this application. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, "several" and "multiple" mean two or more, unless otherwise clearly and specifically defined. In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be interpreted broadly. For example, they can refer to fixed, removable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; or internal communication between two components. A person skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances. In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or the first and second features being in contact through another feature between them. Furthermore, "above," "above," and "above" a first feature may include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher level than the second feature. "Below," "below," and "below" a first feature may include the first feature being directly below or diagonally below the second feature, or simply indicate that the first feature is at a lower level than the second feature.

[0020] like Figures 1 to 4As shown, a multi-faceted crimping device for a tubular terminal comprises an upper crimping die 1 and a lower crimping die 2 arranged opposite to each other; the upper crimping die 1 is provided with a driving device and an inclined surface pressing block 3, the driving device being connected to the top of the upper crimping die 1 and used to drive the upper crimping die 1 to move up and down, and the inclined surface pressing block 3 being fixed to the side wall of the upper crimping die 1; the side wall of the lower crimping die 2 located below the inclined surface pressing block 3 is provided with a multi-faceted crimping assembly 4, the multi-faceted crimping assembly 4 comprising a fixing plate 41 and a plurality of radially arranged fixing plates 41. 1, each rotary crimping block 42 is provided with a positioning shaft 421 vertically fixed on the fixed disk 41 in the middle thereof, each rotary crimping block 42 can rotate around the positioning shaft 421, and each rotary crimping block 42 is provided with a crimping inclined surface 422 at one end close to the radial center, and all rotary crimping blocks 42 are connected to a rotating ring 5 at one end away from the radial center, and a clamping protrusion 51 matching the inclined surface pressing block 3 is provided on the rotating ring 5, and a reset member 6 connected to the lower crimping die 2 is also provided.

[0021] It should be noted that the multi-sided crimping assembly 4 can set the number of rotating crimping blocks 42 according to actual needs. There is no restriction on the number of rotating crimping blocks 42. Different numbers of rotating crimping blocks 42 can perform crimping work on a corresponding number of crimping surfaces on the tubular terminal 9.

[0022] The working principle of the present invention is as follows: when the terminal is loaded onto the multi-faceted crimping assembly 4 of the lower crimping die 2, that is, the tubular terminal 9 is placed in the crimping channel formed by the radial center of the plurality of rotating crimping blocks 42, the wire moves onto the terminal, and the upper crimping die 1 moves downward under the drive of the driving device, and the inclined surface pressing block 3 presses down the clamping protrusion 51 of the rotating ring 5, so that the rotating ring 5 rotates clockwise and drives the plurality of rotating crimping blocks 42 to rotate clockwise at the same time, so that the plurality of rotating crimping blocks 42 are squeezed toward the center, the crimping channel is reduced, and the plurality of crimping inclined surfaces 422 are simultaneously pressed on the tubular terminal 9, so as to realize the multi-faceted crimping of the tubular terminal 9; since the size of the crimping channel is determined by the rotation of the crimping die 1 during the crimping process, the size of the crimping channel is determined by the rotation of the crimping die 1 The rotation angle of the crimping block 42 is determined by the distance that the inclined surface pressing block 3 moves downward. Therefore, by adjusting the moving distance of the inclined surface pressing block 3 by the driving device, it is possible to adapt to the crimping of tubular terminals 9 of various specifications. The cross-section of the tubular terminal 9 after crimping becomes smaller, and it can be easily inserted into a terminal row with a small hole. After the crimping is completed, the driving device drives the upper crimping die 1 to drive the inclined surface pressing block 3 to move upward for reset. The rotating ring 5 rotates counterclockwise and resets under the action of the reset member 6, thereby driving multiple rotary crimping blocks 42 to rotate counterclockwise at the same time. The crimping channel is widened, and the tubular terminal 9 and the wire can be smoothly removed, avoiding the problem of the tubular terminal 9 sticking to the die.

[0023] Optionally, the inner ring of the rotating ring 5 is provided with a plurality of limiting notches 52 matching the rotating crimping block 42 at intervals along the circumferential direction, and the end of the rotating crimping block 42 away from the radial center is arranged in the limiting notch 52; thus, when the rotating ring 5 rotates, the rotating crimping block 42 can be driven to rotate, thereby controlling the size of the crimping channel of the rotating crimping block 42.

[0024] Furthermore, a cover plate 7 is provided on the rotating ring 5 ; one end of the positioning shaft 421 is vertically fixed on the fixed disk 41 , and the other end is vertically connected to the cover plate 7 .

[0025] Optionally, a plurality of crimping ridges 8 are provided at intervals on the crimping bevel 422 ; thus, when the crimping bevel 422 is pressed against the tubular terminal 9 , friction can be increased and embossings of corresponding shapes can be formed on the tubular terminal 9 .

[0026] Optionally, the reset member 6 is a tension spring, and one end of the reset member 6 is connected to the lower crimping mold 2 through a hook, and the other end of the reset member 6 is connected to the rotating ring 5 through a hook.

[0027] The driving device is not shown in the figure. Optionally, the driving device includes a servo motor and a reducer. The reducer is respectively connected to the servo motor and the upper crimping mold 1. The servo motor is used to drive the reducer to drive the upper crimping mold 1 to move up and down for crimping; through the combination of the servo motor and the reducer, the servo motor can make the reducer rotate to output a larger torque to drive the upper crimping mold 1 to move, and accurately adjust the size of the crimping channel without adjusting the mechanical structure.

[0028] In some embodiments of the present invention, the upper crimping mold 1 and the lower crimping mold 2 are both cylindrical, and the side wall of the upper crimping mold 1 is provided with multiple upper mounting grooves 11 at intervals along the circumferential direction, and the side wall of the lower crimping mold 2 is provided with multiple lower mounting grooves 21 at intervals along the circumferential direction. The upper mounting grooves 11 and the lower mounting grooves 21 are used to install crimping blocks; each corresponding set of crimping blocks above and below is used to crimp a terminal of a specification by two-sided crimping. Multiple sets of crimping blocks of different specifications can be arranged on the upper crimping mold 1 and the lower crimping mold as needed, so that in the present invention, the tubular terminal 9 can be crimped by using the multi-sided crimping assembly 4 in a multi-sided crimping manner, and the tubular terminal 9 can be crimped by using the crimping blocks of the upper mounting groove 11 and the lower mounting groove 21 in a two-sided crimping manner.

[0029] It should be understood that all the above embodiments are illustrative rather than restrictive. Any modifications, equivalent changes and modifications made by those skilled in the art to the specific embodiments described above under the concept of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A multi-faceted crimping device for tubular terminals, characterized by: It includes an upper crimping die and a lower crimping die that are arranged opposite to each other; The upper crimping die is provided with a driving device and an inclined surface pressing block, the driving device is connected to the top of the upper crimping die, and is used to drive the upper crimping die to move up and down, and the inclined surface pressing block is fixed to the side wall of the upper crimping die; The lower crimping die is provided with a multi-sided crimping assembly on the side wall below the inclined surface pressing block. The multi-sided crimping assembly includes a fixed disk and a plurality of rotating crimping blocks radially arranged on the fixed disk. A positioning shaft vertically fixed to the fixed disk is passed through the middle of each rotating crimping block. Each rotating crimping block can rotate around the positioning shaft. A crimping slope is provided at one end of each rotating crimping block close to the radial center. A rotating ring is connected to one end of all rotating crimping blocks away from the radial center. A clamping protrusion matching the inclined surface pressing block is provided on the rotating ring, and a reset member connected to the lower crimping die is also provided.

2. The multi-faceted crimping device for tubular terminals according to claim 1, characterized in that: The inner ring of the rotating ring is provided with a plurality of limiting notches which match the rotating crimping block at intervals along the circumferential direction; and one end of the rotating crimping block away from the radiation center is arranged in the limiting notch.

3. The multi-surface crimping device for tubular terminals according to claim 1 or 2, characterized in that: A cover plate is provided on the rotating ring; one end of the positioning shaft is vertically fixed on the fixed disk, and the other end is vertically connected to the cover plate.

4. The multi-faceted crimping device for tubular terminals according to claim 1, wherein: A plurality of crimping convex strips are arranged on the crimping inclined surface at intervals.

5. The multi-surface crimping device for tubular terminals according to claim 1, characterized in that: The reset member is a tension spring, and one end of the reset member is connected to the lower crimping die by a hook, and the other end of the reset member is connected to the rotating ring by a hook.

6. The multi-surface crimping device for tubular terminals according to claim 1, characterized in that: The driving device includes a servo motor and a reducer, the reducer is connected to the servo motor and the upper crimping die respectively, and the servo motor is used to drive the reducer to drive the upper crimping die to move up and down for crimping.

7. The multi-surface crimping device for tubular terminals according to claim 1, characterized in that: The upper crimping mold and the lower crimping mold are both cylindrical, the side wall of the upper crimping mold is provided with a plurality of upper mounting grooves at intervals along the circumference, and the side wall of the lower crimping mold is provided with a plurality of lower mounting grooves at intervals along the circumference, and the upper mounting grooves and the lower mounting grooves are used to install the crimping block.

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