Portable tubular terminal crimping device

Abstract

The application discloses a portable tubular terminal crimping device, which comprises a shell, a control module installed at a corresponding position inside the shell and a moving module driven by the control module. The application aims at solving the technical problems of too many mechanical transmission structures, poor adjustment convenience and low operation precision of the existing terminal crimping machine. The application effectively solves the technical problem of low adjustment efficiency for terminals with different diameters by storing the stroke data of the electric push rod in the controller. The application effectively solves the problem of large crimping stroke and force error of the traditional terminal crimping machine by directly driving the upper die through the electric push rod. The application effectively solves the problems of limited use scene of the traditional terminal crimping machine driven by hydraulic pressure and air pressure and high labor consumption of the manual crimping device by adopting electric driving. The application has the advantages of portability, adaptability to tubular terminals with different diameters and high precision.

Description

Technical Field

[0001] This application relates to the field of terminal crimping machines, and more specifically to a portable tubular terminal crimping device. Background Technology

[0002] In the fields of power, communications, automotive, and new energy, the assembly of wires and tubular terminals commonly employs crimping—a technology that achieves reliable connections through mechanical plastic deformation, relying on tubular terminal crimping devices. These devices, driven mechanically or pneumatically, apply precise pressure to the terminals and wires through a mold, causing plastic deformation and a tight bond, thus ensuring electrical conductivity and mechanical strength. Traditional hydraulic or pneumatic terminal crimping devices require corresponding pressure source interfaces in the work area, making portable applications difficult. While manual crimping devices are portable, they require significant manpower, are relatively inefficient, and lack consistent crimping quality, making them unsuitable for mass production.

[0003] A patent document with publication number CN222320776U, known to the inventor, discloses a terminal crimping machine. The machine uses a motor to drive a turntable to rotate, which in turn drives a moving seat to slide along a limiting groove via a transmission rod. This causes a mounting seat to slide along a slide rod, bringing the two crimping connectors close to the crimping terminals. The turntable rotates half a revolution to complete the crimping and then rotates another half revolution to reset. A shock absorber buffers the impact during crimping. After replacing the crimping connector, a knob can be rotated to adjust the mounting seat by sliding along the slide rod via an adjusting screw to finely adjust the crimping spacing.

[0004] However, in the process of implementing the technical solutions in the embodiments of this application, the inventors of this application discovered that the above-mentioned technology has at least the following technical problems: First, the device outputs pressure by driving a turntable through a motor and then driving a transmission rod. This connection method makes the movement speed of the mold non-linear, resulting in uneven output force, which directly affects the pressing quality. Second, the fine adjustment of the pressing gap relies on manually rotating the knob to drive the adjusting screw. For high-frequency, multi-size, or high-precision adjustment scenarios, this results in long operation time and insufficient automation. In addition, the motor rotation angle is too small to control. Allowing such a small device with large error to drive a large device will amplify the pressing error of the device, which will have an adverse effect on high-precision operations.

[0005] In light of the above technical background, existing terminal crimping machines still have significant shortcomings such as excessive mechanical transmission structures, poor adjustment convenience, and low operating accuracy. There is an urgent need for a new type of device that is highly portable, can adapt to tubular terminals of different diameters, has high operating accuracy, and high production speed.

[0006] The information disclosed in this background section is intended only to enhance the understanding of the background technology of this disclosure and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0007] In view of at least one of the above technical problems, this disclosure provides a portable tubular terminal crimping device, which solves the problems of low accuracy, limited applicability and complicated operation of traditional terminal crimping machines by means of a data-storing controller, a high-precision electric push rod and a multi-layer fin mold.

[0008] According to one aspect of this disclosure, a portable tubular terminal crimping device is provided, comprising a housing with a corresponding cross-section in the shape of an inverted triangle and a control module and an actuation module disposed inside the housing;

[0009] The control module includes a power module and a controller and a driver electrically connected to the power module, wherein the controller and the driver are communicatively connected.

[0010] The actuation module includes an electric push rod that is longitudinally inserted through the upper part of the square structure of the outer shell and fixed relative to the outer shell, and a mold disposed in a corresponding groove in the chamfered structure of the outer shell; the mold includes an upper mold fixed to the bottom of the electric push rod and a lower mold disposed below the upper mold and fixed to the lower part of the chamfered structure of the outer shell for corresponding engagement with the upper mold; the electric push rod is electrically connected to the driver, and the upper mold and the lower mold respectively include a V-shaped multi-layer fin-shaped groove structure for corresponding engagement to form a square terminal forming space.

[0011] Furthermore, the outer casing includes a housing and a top cover.

[0012] Furthermore, the electric push rod is fixed to the lower surface of the upper cover by bolts.

[0013] Furthermore, the electric actuator is fixed to the side wall of the housing by bolts.

[0014] Furthermore, the controller includes a screen, and the screen is embedded in a corresponding position in the housing.

[0015] Furthermore, a handle is provided on the upper surface of the outer casing.

[0016] Furthermore, the action module also includes a limiting groove vertically disposed at the C-shaped groove structure of the outer shell, and the two sides of the upper mold and the lower mold respectively slide and engage with the groove of the limiting groove.

[0017] Furthermore, the control module also includes control buttons embedded in the housing for controlling the start and stop of the controller.

[0018] Furthermore, the control module also includes a power socket fitted into the side wall of the housing for connecting to an external power source and electrically connected to the power module.

[0019] One or more technical solutions provided in the embodiments of this application have at least one of the following technical effects or advantages:

[0020] 1. By using a controller to control the stroke of the electric push rod, the technical problem of low adjustment efficiency for terminals of different diameters in the prior art is effectively solved, thereby achieving efficient adaptation to terminals of different diameters.

[0021] 2. By directly driving the upper die with an electric push rod, the problem of large errors in crimping stroke and force of traditional terminal crimping machines is effectively solved, thereby improving the accuracy of the product.

[0022] 3. The adoption of electric drive effectively solves the problems of limited application scenarios for traditional hydraulic and pneumatic terminal crimping machines and the high manpower consumption of manual crimping devices. It greatly expands the application scenarios of the device, enhances the portability of the equipment, reduces manpower, and improves accuracy. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of a portable tubular terminal crimping device according to an embodiment of this application.

[0024] Figure 2 This is a partial structural schematic diagram of a portable tubular terminal crimping device according to an embodiment of this application.

[0025] Figure 3 This is a schematic diagram of the control module of a portable tubular terminal crimping device in one embodiment of this application.

[0026] Figure 4 This is a schematic diagram of the operation module of a portable tubular terminal crimping device in one embodiment of this application.

[0027] Figure 5 This is a schematic diagram of the wiring harness connection of a portable tubular terminal crimping device in one embodiment of this application.

[0028] In the above figures, 1 is the outer shell, 11 is the housing, 12 is the top cover, 13 is the handle, 2 is the control module, 21 is the power socket, 22 is the power module, 23 is the controller, 24 is the driver, 25 is the control button, 3 is the action module, 31 is the electric push rod, 32 is the upper mold, 33 is the lower mold, and 34 is the limit groove. Detailed Implementation

[0029] In the description of this application, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," "vertical," "horizontal," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "connection" and "linkage" in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0030] Unless otherwise specified, the unit modules (components, structures, mechanisms) or sensors involved in the following embodiments are all conventional commercially available products.

[0031] This application provides a portable tubular terminal crimping device, which solves the problems of limited applicability, low mold adaptability, low production efficiency, and low product precision in the prior art. By using a data-storing controller, a high-precision electric pusher, and a multi-layer finned V-shaped mold, the terminal crimping machine achieves high portability, multi-size compatibility, and high precision.

[0032] The technical solution in this application is to solve the above problems, and the overall approach is as follows:

[0033] By selecting the terminal size to be crimped on the controller and matching it with a multi-layered finned V-shaped mold, multiple sizes can be adapted; high-precision operation is achieved through an electric push rod; and portability is improved through integrated design and the addition of a handle.

[0034] To better understand the technical solution of this application, the above technical solution will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] Example 1

[0036] Structural Description:

[0037] This example discloses a portable tubular terminal crimping device; see [link to documentation]. Figure 1 It includes a housing 1, a control module 2, and an action module 3. Their specific structures are as follows:

[0038] See Figure 2 The outer shell 1 is in the shape of a three-dimensional cabinet, which is a rectangular prism with a hollowed-out lower front. Inside it, a control module 2 and an action module 3 driven by the control module 2 are installed in the corresponding positions.

[0039] The outer casing 1 includes a housing 11 with several openings, a top cover 2 bolted to the top of the housing 11, and a handle 13 mounted on the upper surface of the top cover 2.

[0040] See Figure 3 The control module 2 includes a power socket 21, a power module 22, a controller 23, a driver 24, and a control button 25. They are all installed inside the housing 1 and are electrically connected to the action module 3 through the driver 24.

[0041] See Figure 2 , Figure 3 and Figure 5 The specific structure and circuit connection of control module 2 are as follows: The power socket (including power switch) 21 is bolted to the right opening of housing 11, providing external power for the device. This electrically driven power supply greatly expands the device's application scenarios, enhances portability, reduces manpower, and improves precision. The power socket 21 is electrically connected via a cable to the power module 22, which is bolted to the rear right side of the housing 1. Two cables extend from the power module 22, connecting to the controller 23 (installed at the front opening of housing 11) and the driver 24 (installed on the rear left side of the housing 1), respectively. The driver 24 is a DM556. A cable for digital signal transmission connects the controller 23 and the driver 24. The controller 23 is connected via a cable to control buttons 25 that control the device's operation. The controller can store motor current data for the electric actuator to reach a defined stroke, thus achieving efficient adaptation to terminals of different diameters.

[0042] The electric actuator 31 is installed below the upper cover 12, and its actuator extends to the outside of the housing through an opening on the upper surface of the hollow portion of the housing 11. See also Figure 4 A multi-layered finned V-shaped mold upper mold 32 is fixed below the push rod. The electric push rod directly drives the upper mold, thereby improving the product's precision. A lower mold 33 is installed at the corresponding position below the upper mold 32, and is fixed to the lower surface of the hollowed-out portion of the housing 11 by bolts. A limit groove 34 is located close to the side and rear of the mold, limiting the three surfaces of the mold to ensure linear movement with each press, preventing the upper mold 32 from rotating backwards. The multi-layered finned V-shaped mold has a V-angle of 90°. The fins of the upper and lower molds are parallel and do not interfere with each other, thus achieving interlocking of the fins during pressing, forming an adjustable square space at the center of the mold.

[0043] Preparation work, i.e., work process:

[0044] 1. Preparation: When using this device for the first time, connect the power socket 21 to the electrical outlet using the power cord, and turn on the power switch next to the power socket 21. At this time, the AC power is transformed by the power module and supplied to the controller 23 and the driver 24. The controller 23 starts and performs a crimping test, i.e., a pressure test, to determine the number of rotations of the motor of the electric push rod 31 required to complete the crimping of terminals of various sizes (tensile test: after each batch of crimping, a tensile testing machine is used to perform tensile testing to ensure that the products meet the standards). The test data is manually input into the controller 23, so that the device can increase or decrease the vertical displacement stroke of the electric push rod 31 according to the selected terminal size, thereby achieving the purpose of adapting to tubular terminals of different diameters.

[0045] 2. Work Flow: After completing the preparation work, assemble the tubular terminals (i.e., wires) to be crimped and place them above the lower mold, holding them with one hand; according to the different diameters of the tubular terminals, input the required diameter of the tubular terminals to be crimped in the page of the controller 23; click the control button 25, and the controller 23 transmits the digital pulse signal to the driver 24 through the cable. The driver 24 converts the digital pulse signal sent by the controller into a precise stepper motor coil current, thereby controlling the electric push rod 31 to complete the up and down movement of the same stroke at a certain frequency, while driving the upper mold to move up and down, completing the batch crimping of the tubular terminals.

[0046] If it is necessary to replace the tubular terminals with other diameters at this time, click the control button 25, the equipment will stop and the electric push rod 31 will return to the shortest stroke position. Enter the new diameter of the terminal to be crimped in the controller 23, click the control button 25, and the controller 23 will transmit the modified signal to the driver 24 through the cable, control the change of its power supply to the motor, thereby controlling the electric push rod 31 to complete the up and down reciprocating motion according to the new stroke frequency, while driving the upper mold to move up and down, and completing the batch crimping of the new diameter tubular terminals.

[0047] Example 2

[0048] Structural Description:

[0049] This example discloses a portable tubular terminal crimping device, which is identical in structure to Embodiment 1 except for the following differences: the electric push rod is fixed to the side wall of the housing by bolts.

[0050] Preparation work, i.e., work process:

[0051] Same as Example 1.

[0052] Although some preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0053] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from the spirit and scope of its inventive concept. Therefore, if these modifications and variations of this utility model fall within the scope of the claims of this application and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A portable tubular terminal crimping device, characterized in that, It includes an outer shell with a corresponding cross-section in the shape of an inverted triangle, and a control module and an action module disposed inside the outer shell; The control module includes a power module and a controller and a driver electrically connected to the power module, wherein the controller and the driver are communicatively connected. The actuation module includes an electric push rod that is longitudinally inserted through the upper part of the square structure of the outer shell and fixed relative to the outer shell, and a mold disposed in a corresponding groove in the chamfered structure of the outer shell; the mold includes an upper mold fixed to the bottom of the electric push rod and a lower mold disposed below the upper mold and fixed to the lower part of the chamfered structure of the outer shell for corresponding engagement with the upper mold; the electric push rod is electrically connected to the driver, and the upper mold and the lower mold respectively include a V-shaped multi-layer fin-shaped groove structure for corresponding engagement to form a square terminal forming space.

2. The portable tubular terminal crimping device according to claim 1, characterized in that, The outer casing includes a housing and a top cover.

3. The portable tubular terminal crimping device according to claim 2, characterized in that, The electric push rod is fixed to the lower surface of the upper cover by bolts.

4. The portable tubular terminal crimping device according to claim 1, characterized in that, The electric actuator is fixed to the side wall of the housing by bolts.

5. The portable tubular terminal crimping device according to claim 1, characterized in that, The controller includes a screen, which is embedded in a corresponding position on the housing.

6. The portable tubular terminal crimping device according to claim 1, characterized in that, The upper surface of the outer casing is provided with a handle.

7. The portable tubular terminal crimping device according to claim 1, characterized in that, The action module also includes a limiting groove vertically disposed at the indented groove structure of the outer shell, and the two sides of the upper mold and the lower mold respectively slide and engage with the groove of the limiting groove.

8. The portable tubular terminal crimping device according to claim 1, characterized in that, The control module also includes control buttons embedded in the housing for controlling the start and stop of the controller.

9. The portable tubular terminal crimping device according to claim 1, characterized in that, The control module also includes a power socket fitted into the side wall of the housing for connecting to an external power source and electrically connected to the power module.

Images