Plastic shell assembling equipment and method

Abstract

The invention relates to the technical field of wire harness processing, in particular to a plastic shell assembling device and method. The plastic shell positioning mechanism is provided with a plastic shell positioning seat, the plastic shell positioning seat is provided with a plastic shell positioning groove matched with the plastic shell part, and the plastic shell positioning groove is internally provided with an insertion hole corresponding to the auxiliary hole in the clamping groove of the plastic shell part; the bearing mechanism comprises an ejection column corresponding to the insertion hole and a lifting driving piece connected with the ejection column and used for driving the ejection column to ascend and descend; the wire harness clamping mechanism comprises two wire clamps which can be relatively close to or far away from each other; the wire pressing mechanism comprises a wire pressing head arranged opposite to the plastic shell positioning seat and a wire pressing driving part used for driving the wire pressing head to be close to or away from the plastic shell positioning seat; wherein the support pillar is configured to firstly pass through the jack to abut against the pin terminal of the wire harness body, and then synchronously move with the wire pressing head until the pin terminal on the wire harness body enters the clamping groove of the plastic shell. The invention further requests to protect an assembling method of the plastic shell assembling equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of wire harness processing, and in particular to a plastic shell assembly device and method. Background Art

[0002] like Figure 1 As shown in the figure, it is an exploded view of the connection of the twisted pair connector, including a plastic shell and a wiring harness body, wherein the end of the wiring harness body has a crimped pin terminal, and the plastic shell has a card slot corresponding to the two pin terminals. The card slot is set to an inward-buckled structure. When making a specific connection, the two pin terminals need to be pressed into the two card slots.

[0003] In the prior art, twisted-pair connector assembly is often done manually, where two pins are pressed into the slots one by one to secure the connection. However, this connection method is not only inefficient but also results in large errors in the pin terminals' connection. Furthermore, when automated mechanical assembly is used, the alignment accuracy between the pins and the slots is insufficient, which can easily lead to misalignment and even damage to the plastic housing.

[0004] Therefore, how to achieve accurate and efficient installation of pin terminals has become a problem that needs to be solved urgently. Summary of the Invention

[0005] In view of at least one of the above technical problems, the present invention provides a molded case assembly device and method, which adopts structural improvements to improve the accuracy and efficiency of molded case assembly.

[0006] According to a first aspect of the present invention, there is provided a molded case assembly device comprising: Support frame; A molded shell positioning mechanism is provided on the support frame, wherein the molded shell positioning mechanism has a molded shell positioning seat, the molded shell positioning seat has a molded shell positioning groove adapted to the molded shell component, and the molded shell positioning groove has a socket corresponding to the process hole in the card slot of the molded shell component; The receiving mechanism is arranged at the bottom of the plastic shell positioning seat, and includes a top column corresponding to the socket and a lifting driving member connected to the top column for driving the top column to move up and down; A wire harness clamping mechanism is provided on a side of the molded housing positioning seat away from the receiving mechanism, and the wire harness clamping mechanism includes two wire clamps that can be relatively close to or away from each other, and is used to clamp the wire harness body; A wire pressing mechanism is arranged above the wire harness clamping mechanism, and the wire pressing mechanism includes a wire pressing head arranged opposite to the molded case positioning seat, and a wire pressing driving member for driving the wire pressing head to approach or move away from the molded case positioning seat; Among them, the top column is configured to first pass through the jack and abut against the pin terminal of the wiring harness body, and then move synchronously with the wire pressing head abutting the other end of the pin terminal to the pin terminal on the wiring harness body and enter the card slot of the plastic shell.

[0007] Furthermore, the contour of the mold shell positioning groove is adapted to the shape of the mold shell component, and the end of the mold shell positioning groove also has a stop portion whose width is smaller than the width of the end of the mold shell component. The position of the stop portion is configured so that when the end of the mold shell component abuts against the stop portion, the socket corresponds to the process hole on the mold shell component.

[0008] Furthermore, the top of the top column has a first curved surface, and the curvature of the first curved surface conforms to the side wall of the plug-in terminal.

[0009] Furthermore, the two wire clamps have strip-shaped holes on their mating surfaces facing away from each other, and the strip-shaped holes are arranged through the thickness direction of the wire clamps, and the top column can be inserted into the strip-shaped holes.

[0010] Furthermore, the wire clamps are provided with an in-position sensor arranged in the direction of the clamping joint surface, and the wire clamps are configured to move closer to each other to clamp the wire harness after the in-position sensor detects the wire harness.

[0011] Furthermore, the crimping head has two parallel crimping posts, which can be inserted into the strip-shaped hole. The crimping post has a second curved surface on the surface facing the plastic shell positioning seat, and the curvature of the second curved surface is fitted with the side wall of the plug-in terminal.

[0012] Furthermore, the second arc-shaped surfaces of the two wire pressing posts have a protruding wire-dividing portion on the side close to each other, and the wire-dividing portion first contacts the inner wall of the plug-in terminal when approaching the wiring harness body.

[0013] Furthermore, the wire clamp is configured to open after both the first curved surface and the second curved surface are in contact with the pin terminal.

[0014] Furthermore, the wire pressing column and the push column move synchronously toward the direction of the plastic shell positioning seat after contacting the pin terminal, so that the pin terminal is snapped into the slot.

[0015] According to a second aspect of the present invention, there is also provided an assembly method for the above-mentioned molded case assembly device, comprising the following steps: Place the plastic shell into the plastic shell positioning groove so that the socket is aligned with the process hole on the plastic shell positioning piece; Place the wire harness body in the middle of the wire clamp so that the wire clamp holds the wire harness body; The driving post passes through the socket and contacts the pin terminal; Drive the wire pressing post to move to contact the pin terminal and open the wire clamp; The push column and the wire pressing column are synchronously driven to drive the pin terminal to move toward the plastic shell. After the pin terminal is inserted into the slot of the plastic shell, the push column and the wire pressing column retreat to their initial positions.

[0016] The beneficial effects of the present invention are as follows: the present invention provides a push column that can be inserted into the insertion hole in the positioning groove of the plastic shell, so that the push column first contacts the pin terminal of the wiring harness body, and then under the support of the pressure head of the wire pressing mechanism and the pin terminal, the wire pressing head and the push column drive the pin terminal of the wiring harness body to move toward the slot synchronously. Under the guiding action of the push column, the pin terminal can be accurately inserted into the slot of the plastic shell. Compared with the existing technology, not only the assembly accuracy of the wiring harness body and the plastic shell is improved, but also the assembly efficiency is improved with the help of mechanical automation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 It is a structural diagram of the plastic shell assembly in the background technology of the present invention; Figure 2 Schematic diagram of the assembly principle of the molded case assembly equipment in an embodiment of the present invention; Figure 3 Schematic diagram of the structure of the molded case assembly equipment in an embodiment of the present invention; Figure 4 Schematic diagram of the structure of the molded case positioning mechanism in an embodiment of the present invention; Figure 5 Schematic diagram of the structure of the molded case positioning mechanism in an embodiment of the present invention; Figure 6 In the embodiment of the present invention Figure 5 A local enlarged structural diagram in FIG. Figure 7 This is a structural diagram of the receiving mechanism in an embodiment of the present invention; Figure 8 In the embodiment of the present invention Figure 7 A schematic diagram of the local enlarged structure at point B in FIG. Figure 9 Schematic diagram of the structure of the wire harness clamping mechanism in an embodiment of the present invention; Figure 10 In the embodiment of the present invention Figure 9 A schematic diagram of the partially enlarged structure at point C in FIG. Figure 11 Schematic diagram of the structure of the molded case assembly equipment in an embodiment of the present invention; Figure 12 In the embodiment of the present invention Figure 11 A schematic diagram of the local enlarged structure at D in FIG. Figure 13 1 is a flowchart of the steps of the molded shell assembly method in an embodiment of the present invention.

[0019] Explanation of the accompanying drawings: 01, plastic shell; 01a, slot; 02, wiring harness body; 02a, pin terminal; 1, support frame; 2, plastic shell positioning mechanism; 21, plastic shell positioning seat; 211, plastic shell positioning slot; 211a, stopper; 212, socket; 3, receiving mechanism; 31, top column; 32, lifting drive component; 4, wiring harness clamping mechanism; 41, wire clamp; 41a, strip hole; 42, in-position sensor; 5, wire pressing mechanism; 51, wire pressing head; 511, wire pressing column; 511a, second arc-shaped surface; 511b, branching part; 52, wire pressing drive component. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0023] like Figures 1 to 12 The molded case assembly device shown includes a support frame 1, a molded case positioning mechanism 2, a receiving mechanism 3, a wire harness clamping mechanism 4 and a wire pressing mechanism 5, as shown in FIG. Figure 3As shown in , the support frame 1 is used to support and fix the remaining mechanisms. It can be formed by profiles or directly supported by metal plates. The molded shell positioning mechanism 2 is arranged on the support frame 1. The molded shell positioning mechanism 2 has a molded shell positioning seat 21. The molded shell positioning seat 21 has a molded shell positioning groove 211 adapted to the molded shell part 01. The molded shell positioning groove 211 has a socket 212 corresponding to the process hole in the slot 01a of the molded shell part 01. It should be pointed out here that the process hole of the molded shell refers to the hole position on the structure of the molded shell itself, which is used for snapping with the remaining structures or snapping with the connecting parts. The receiving mechanism 3 is arranged at the bottom of the molded shell positioning seat 21, including a top column 31 corresponding to the socket 212 and a lifting drive member 32 connected to the top column 31 for driving the top column 31 to rise and fall. The receiving mechanism 3 is fixed on the support frame 1 and is arranged opposite to the molded shell positioning seat 21. The top column 31 is arranged toward the socket 212 in the molded shell positioning groove 211. The wire harness clamping mechanism 4 is arranged on the side of the molded shell positioning seat 21 away from the receiving mechanism 3. The wire harness clamping mechanism 4 includes two wire clamps 41 that can be relatively close to or away from each other, and is used to clamp the wire harness body 02. In an embodiment of the present invention, the wire harness clamping mechanism 4 is arranged above the molded shell positioning seat 21 and is arranged in close contact with the molded shell positioning seat 21, and the clamping center of the wire clamp 41 corresponds to the molded shell positioning groove 211. The wire pressing mechanism 5 is arranged above the wire harness clamping mechanism 4. The wire pressing mechanism 5 includes a wire pressing head 51 arranged relative to the molded shell positioning seat 21, and a wire pressing drive 52 for driving the wire pressing head 51 to move close to or away from the molded shell positioning seat 21. It should be pointed out here that the wire pressing drive 52 has various structural forms. For example, a servo motor can be used to drive the rotation of the screw rod to drive the nut seat to move back and forth up and down. Those skilled in the art can also choose according to their needs.

[0024] Please refer to Figure 2 , which is a working principle diagram of the molded case assembly equipment in an embodiment of the present invention. During assembly, the top post 31 is configured to first pass through the socket 212 and abut against the pin terminal 02a of the wiring harness body 02. Then, it moves synchronously with the wire pressing head 51 abutting the other end of the pin terminal 02a until the pin terminal 02a on the wiring harness body 02 enters the slot 01a of the molded case 01. Through this configuration, the top post 31 and the wire pressing head 51 can clamp and position the pin terminal 02a in the vertical direction. In addition, the cooperation between the top post 31 and the socket 212 during the downward movement also realizes a guiding function, allowing the pin terminal 02a to be accurately snapped into the slot 01a of the molded case 01.

[0025] In the above embodiment, by setting the top column 31 that can be inserted into the plug hole 212 in the positioning groove 211 of the plastic shell, the top column 31 first contacts the pin terminal 02a of the wiring harness body 02, and then under the support of the pressure head of the wire pressing mechanism 5 and the pin terminal 02a, the wire pressing head 51 and the top column 31 drive the pin terminal 02a of the wiring harness body 02 to move toward the slot 01a synchronously. Under the guiding action of the top column 31, the pin terminal 02a can be accurately inserted into the slot 01a of the plastic shell 01. Compared with the existing technology, not only the assembly accuracy of the wiring harness body 02 and the plastic shell 01 is improved, but also the assembly efficiency is improved with the help of mechanical automation.

[0026] On the basis of the above embodiment, in the embodiment of the present invention, in order to further improve the accuracy of the placement of the plastic shell, as shown in FIG. Figure 6 As shown in , the contour of the molded case positioning groove 211 is adapted to the shape of the molded case 01. The end of the molded case positioning groove 211 also has a stopper 211a whose width is smaller than the width of the end of the molded case 01. The position of the stopper 211a is configured so that when the end of the molded case 01 abuts the stopper 211a, the insertion hole 212 corresponds to the process hole on the molded case 01. The width here can be the width of the stopper 211a, or it can be as shown in FIG. Figure 6 The distance between the two stoppers 211a shown in FIG. , through the contoured arrangement of the stoppers 211a and the molded case positioning grooves 211, ensures that when the molded case 01 is placed in place, the process hole and the insertion hole 212 are aligned. This arrangement helps to improve the success rate of assembly and prevents the top column 31 from interfering with the molded case 01 during the upward movement.

[0027] Please continue to refer to Figure 7 and Figure 8 In this embodiment of the present invention, the top of the top post 31 has a first curved surface, the curvature of which conforms to the sidewall of the plug terminal. This first curved surface not only guides the top post 31 as it rises to contact the pin terminal 02a, ensuring that the pin terminal 02a is centered on the first curved surface, but also improves the positioning accuracy of the pin terminal 02a when it is inserted into the slot 01a, preventing it from shaking.

[0028] In some embodiments of the present invention, Figure 9 and Figure 10 As shown in the figure, to prevent the wiring harness from shifting when the clamps 41 are opened, the two clamps 41 have strip-shaped holes 41a on their mating surfaces, facing away from each other. These holes 41a extend through the thickness of the clamps 41, allowing the push pins 31 to penetrate into these holes. This structure allows the push pins 31 to enter the holes 41a and contact the two pin terminals 02a before the clamps 41 are opened, thus preventing wiring harness displacement caused by excessive clamping.

[0029] In order to improve the efficiency of assembly, in the embodiment of the present invention, the wire clamp 41 adopts an induction automatic clamping structure, specifically as follows Figure 10 As shown in FIG, the wire clamps 41 further include an in-position sensor 42 disposed toward the clamping interface. The wire clamps 41 are configured to move toward each other to clamp the wire harness after the in-position sensor 42 detects the wire harness. The in-position sensor 42 may be a photoelectric sensor or a laser sensor. The wire harness emitted by the in-position sensor 42 is directed toward the clamping center of the wire clamps 41. When the emitted light is blocked, it determines that a wire harness has been placed between the two wire clamps 41, and then drives the two wire clamps 41 to move toward the center to clamp the wire harness.

[0030] Please continue to refer to Figure 11 and Figure 12 In an embodiment of the present invention, the crimping head 51 has two parallel crimping posts 511 that can be inserted into the strip-shaped hole 41a. The surface of the crimping post 511 facing the molded case positioning seat 21 has a second curved surface 511a, the curvature of which aligns with the side wall of the plug-in terminal. The arrangement of the crimping posts 511 allows the crimping posts 511 to be inserted into the strip-shaped hole 41a before the wire clamp 41 is opened, allowing the second curved surface 511a to contact the upper surface of the pin terminal 02a, further achieving the positioning function.

[0031] In addition, in the embodiments of the present invention, please continue to refer to Figure 12 The second curved surfaces 511a of the two crimping posts 511 also have a protruding branching portion 511b on the side closest to each other. The branching portion 511b first contacts the inner wall of the plug-in terminal when approaching the wiring harness body 02. The protruding branching portion 511b can push the two clamped pin terminals 02a away from each other. This structural arrangement facilitates the two pin terminals 02a being supported by the first and second curved surfaces 511a at upper and lower positions, respectively.

[0032] In some embodiments of the present invention, to prevent the movement of the wire clamp 41 from affecting the wiring harness body 02, the wire clamp 41 is configured to open after both the first curved surface 511a and the second curved surface 511a contact the pin terminal 02a. That is, after the wiring harness body 02 is clamped, the first curved surface 511a contacts the pin terminal 02a by moving the top post 31 upward, and the second curved surface 511a contacts the pin terminal 02a by pressing the wire pressing post 511 downward. Of course, it should be pointed out here that in the embodiments of the present invention, the order of moving the wire pressing post 511 and the top post 31 is not limited. The wire spacing between the two pin terminals 02a can also be separated to a set distance by first moving the wire pressing post 511 until it presses the pin terminal 02a, and then the top post 31 is driven upward to ensure the reliability of supporting the pin terminal 02a.

[0033] In the embodiment of the present invention, the wire pressing post 511 and the lifting post 31 simultaneously move toward the molded case retaining seat 21 after contacting the pin terminal 02a, allowing the pin terminal 02a to be snapped into the slot 01a. Specifically, as the wire pressing post 511 moves downward, the lifting post 31 also moves downward at the same speed. This structural arrangement further ensures the stability of the wiring harness body 02 during movement and ensures the pin terminal 02a is accurately snapped into the slot 01a.

[0034] In an embodiment of the present invention, a method for assembling the above-mentioned molded shell assembly device is also provided. Figure 13 As shown in , the following steps are included: S10: Place the molded shell 01 into the molded shell positioning groove 211 so that the insertion hole 212 is aligned with the process hole on the molded shell positioning piece; the placement here can be manual placement or can be clamped and transferred by a robot and then placed.

[0035] S20: Place the wire harness body 02 between the wire clamp 41 so that the wire clamp 41 clamps the wire harness body 02. Similarly, the wire harness body 02 can be placed manually or by a mechanical device.

[0036] S30: Drive the top column 31 through the insertion hole 212 and contact the pin terminal 02a; the lifting driving member 32 used to drive the top column 31 can also adopt a motor screw structure to realize a structural form in which the nut seat drives the top column 31 to move up and down.

[0037] S40: driving the wire pressing post 511 to move to contact the pin terminal 02a and open the wire clamp 41; it should be noted here that the opening and closing of the wire clamp 41 can be achieved in the form of a cylinder or other structural forms.

[0038] S50: The push post 31 and the wire pressing post 511 are synchronously driven to move the pin terminal 02a toward the molded case 01. After the pin terminal 02a is inserted into the slot 01a of the molded case 01, the push post 31 and the wire pressing post 511 return to their initial positions. The initial position is where the top of the push post 31 is at the bottom of the molded case positioning seat 21, and the wire pressing post 511 is at the top of the molded case positioning seat 21.

[0039] Those skilled in the art will appreciate that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plastic shell assembly device, characterized in that: include: Support frame; A molded shell positioning mechanism is provided on the support frame, wherein the molded shell positioning mechanism has a molded shell positioning seat, the molded shell positioning seat has a molded shell positioning groove adapted to the molded shell component, and the molded shell positioning groove has a socket corresponding to the process hole in the card slot of the molded shell component; The receiving mechanism is arranged at the bottom of the plastic shell positioning seat, and includes a top column corresponding to the socket and a lifting driving member connected to the top column for driving the top column to move up and down; A wire harness clamping mechanism is provided on a side of the molded housing positioning seat away from the receiving mechanism, and the wire harness clamping mechanism includes two wire clamps that can be relatively close to or away from each other, and is used to clamp the wire harness body; A wire pressing mechanism is arranged above the wire harness clamping mechanism, and the wire pressing mechanism includes a wire pressing head arranged opposite to the molded case positioning seat, and a wire pressing driving member for driving the wire pressing head to approach or move away from the molded case positioning seat; Among them, the top column is configured to first pass through the jack and abut against the pin terminal of the wiring harness body, and then move synchronously with the wire pressing head abutting the other end of the pin terminal to the pin terminal on the wiring harness body and enter the card slot of the plastic shell.

2. The molded shell assembly equipment according to claim 1, characterized in that: The contour of the mold shell positioning groove is adapted to the shape of the mold shell component. The end of the mold shell positioning groove also has a stop portion whose width is smaller than the width of the end of the mold shell component. The position of the stop portion is configured so that when the end of the mold shell component abuts against the stop portion, the socket corresponds to the process hole on the mold shell component.

3. The molded shell assembly equipment according to claim 1, characterized in that: The top of the top column has a first arc-shaped surface, and the curvature of the first arc-shaped surface conforms to the side wall of the plug-in terminal.

4. The molded shell assembly equipment according to claim 3, characterized in that: The two wire clamps have strip holes on their butt joint surfaces that are opened in a direction away from each other. The strip holes are set through in the thickness direction of the wire clamps, and the top column can be inserted into the strip holes.

5. The molded shell assembly equipment according to claim 4, characterized in that: The wire clamps also have an in-position sensor arranged toward the clamping interface. The wire clamps are configured to move closer to each other to clamp the wire harness after the in-position sensor detects the wire harness.

6. The molded shell assembly equipment according to claim 4, characterized in that: The crimping head has two parallel crimping posts, which can be inserted into the strip-shaped holes. The crimping posts have a second curved surface on the surface facing the plastic shell positioning seat, and the curvature of the second curved surface is fitted with the side wall of the plug-in terminal.

7. The molded shell assembly equipment according to claim 6, characterized in that: The second arc-shaped surfaces of the two wire pressing posts are provided with a protruding wire dividing portion on the side close to each other. The wire dividing portion first contacts the inner wall of the plug-in terminal when approaching the wiring harness body.

8. The molded case assembly equipment according to claim 7, characterized in that: The wire clamp is configured to open after both the first curved surface and the second curved surface are in contact with the pin terminal.

9. The molded shell assembly equipment according to claim 8, characterized in that: The wire pressing column and the push column move synchronously toward the direction of the plastic shell positioning seat after contacting the pin terminal, so that the pin terminal is clamped into the clamping slot.

10. The assembly method of the molded shell assembly equipment according to claim 9, characterized in that: The following steps are involved: Place the plastic shell into the plastic shell positioning groove so that the socket is aligned with the process hole on the plastic shell positioning piece; Place the wire harness body in the middle of the wire clamp so that the wire clamp holds the wire harness body; The driving post passes through the socket and contacts the pin terminal; Drive the wire pressing post to move to contact the pin terminal and open the wire clamp; The push column and the wire pressing column are synchronously driven to drive the pin terminal to move toward the plastic shell. After the pin terminal is inserted into the slot of the plastic shell, the push column and the wire pressing column retreat to their initial positions.

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