A fast mounting device for terminal insert

Abstract

The application relates to the technical field of terminal assembly, in particular to a fast-assembly equipment for terminal inserts, which comprises a transverse rack, a vertical rack fixed on the transverse rack, a transverse groove seat arranged in the transverse rack, the transverse groove seat simultaneously bringing a gasket and an insert into the bottom of the vertical rack, a tooling arranged on the vertical rack, a top seat arranged below the tooling on the transverse groove seat, a heating body arranged in the top seat, the tooling comprising a clamping device and a second driving device, when the insert is pushed into the clamping device and clamped by the top seat passing through the gasket, the inner ring of the gasket is heated to expand, a first stroke switch is arranged on the left and right stroke positions of the transverse groove seat relative to the tooling, the structure is compact, the stroke is short, and the efficiency is high; stroke control is adopted to realize automation; uniform interference fit is formed through thermal expansion and cold contraction, mechanical damage is avoided, air tightness and electrical stability are ensured, and the product quality is improved.

Description

Technical Field

[0001] This invention relates to the field of terminal assembly technology, and in particular to a quick-installation device for terminal plugs. Background Technology

[0002] In the fields of electronic component manufacturing, automotive wiring harness assembly, and industrial connector production, the assembly efficiency and reliability of terminal blocks directly affect product performance and the level of production line automation. Traditional assembly mainly relies on manual or semi-automatic equipment to crimp the gaskets and plugs, requiring pre-heating and expansion of the gaskets before insertion, or employing a cold-pressing process. Such scenarios place stringent requirements on assembly accuracy, thermal expansion control, and process connection efficiency. For example, Chinese patent application number CN202410999634.6 discloses a terminal connector processing equipment. The key technical points of its solution include a frame, a transport channel for placing terminal connectors, a transport mechanism for conveying terminal connectors, and a pressing mechanism located at the end of the transport channel. The pressing mechanism includes a first housing fixedly connected to the frame.

[0003] The existing assembly equipment has the following defects: the locking effect after the plug and gasket are inserted is not good; the mechanical stress generated by cold pressing assembly can easily damage the brittle gasket and reduce the sealing performance of the plug and gasket; there is a lack of an integrated stroke and temperature coordination control mechanism, making it difficult to achieve precise synchronization between high temperature expansion and plug insertion, which affects efficiency. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides a quick-installation device for terminal plugs, comprising a horizontal frame with a vertical frame fixed thereon. A horizontal slot is provided within the horizontal frame, which simultaneously guides a washer and a plug into the bottom of the vertical frame. A fixture is provided on the vertical frame, and a top seat is provided below the fixture on the horizontal slot. A heating element is provided within the top seat. A clamping device and a second driving device are provided on the fixture. When the top seat pushes the plug into the clamping device through the washer and clamps it, it also heats the inner ring of the washer to expand. A first limit switch is provided at the left-right travel position of the horizontal slot relative to the fixture, and a second limit switch is provided at the up-down travel position of the fixture relative to the top seat. The second limit switch is electrically connected to the clamping device and the second driving device. A first driving device is provided at the bottom of the top seat, electrically connected to the first limit switch.

[0005] As a further preferred embodiment, a third driving device is fixed inside the transverse frame, and the third driving device drives and connects to the transverse slot. The first driving device, the second driving device, and the third driving device are electric cylinders. The quick-installation device for the terminal plug is also equipped with a controller. The controller is equipped with at least a timing module and a control module. The timing module is connected to the first limit switch and the second limit switch and is controlled by the control module.

[0006] As a further preferred embodiment, the transverse frame has a first through hole opening upwards, and the transverse slot has a second through hole opening. When the transverse slot moves to the bottom of the tooling, it brings the second through hole to overlap with the first through hole vertically.

[0007] As a further preferred embodiment, the transverse slot seat includes a push seat fixed on the third drive device and a carrier fixed inside the push seat. A stepped groove is formed downward from the top of the carrier. The second through hole is formed on the bottom surface of the carrier. The stepped groove is located above the second through hole and is vertically connected to the second through hole.

[0008] As a further preferred embodiment, a limiting seat is fixed on the front of the vertical frame, the limiting seat extending horizontally forward and having a rubber seat.

[0009] As a further preferred embodiment, the clamping device includes a pressure plate fixed to the bottom of the second driving device, connecting frames hinged to the left and right ends of the pressure plate, a gas spring disposed above the pressure plate and driven between the left and right connecting frames, and a rubber roller connected to the left and right connecting frames. The second limit switch is fixed to the bottom surface of the pressure plate and located in the raised position of the top seat. When the top seat pushes the insert to rise to contact the second limit switch, it triggers the second limit switch and activates the second driving device to push the pressure plate down. The pressure plate pushes the insert down and welds it into the inner ring of the washer.

[0010] As a further preferred embodiment, a spring seat is fixed on the bottom surface of the pressure plate, the spring seat faces downward and corresponds to the rising position of the plug-in, there are at least four spring seats, and they are evenly distributed, the second limit switch is located between the four spring seats, when the plug-in rises, the top surface first squeezes the spring seat to compress and store force, and then triggers the second limit switch.

[0011] As a further preferred embodiment, the top seat has the same shape as the inner ring of the washer, and it consists of two parts: an outer metal shell and a heating element disposed inside the metal shell. The shape of the heating element is the same as that of the metal shell, and the outer wall of the heating element is in close contact with the inner wall of the metal shell.

[0012] The advantages of this invention compared to the prior art are: 1. A horizontal and vertical frame is installed. The horizontal frame contains a horizontal slot and a heated top seat. The vertical frame is equipped with a clamping device. The gasket is placed in the horizontal slot, and the insert is placed above the gasket. The gasket and insert are simultaneously conveyed to the lower fixture via the horizontal slot. After the inner ring of the gasket is instantly heated and expanded, the top seat continues to push the insert upward into the clamping device. The clamping device descends to insert the insert into the thermally expanded gasket. The gasket's heat-melting effect locks it in place with the insert, completing rapid assembly. This solves the problems of poor locking effect after insert and gasket insertion, and the mechanical stress generated by cold pressing assembly easily damages brittle gaskets, reducing the sealing performance of the insert and gasket.

[0013] 2. A first limit switch is installed at the travel position of the transverse slot seat. A tooling and a second drive device are installed on the tooling of the vertical frame. A first drive device is installed at the bottom of the top seat. The traveling end of the transverse slot seat makes precise contact with the first limit switch, controlling the top seat to continue pushing the plug-in upward into the clamping device. The clamping device descends to insert the plug-in into the thermally expanded washer. The heat-melting effect of the washer locks and fixes the plug-in, completing rapid assembly and achieving automation. The top seat pushes the plug-in into the clamping device above through the washer, while the washer undergoes rapid thermal expansion. The structure is compact, the stroke is short, and the efficiency is high. Stroke control achieves automation. Thermal expansion and contraction form a uniform interference fit, avoiding mechanical damage, ensuring airtightness and electrical stability, and improving product quality. Attached Figure Description

[0014] Figure 1 This is a first-view diagram of a quick-installation device for terminal plugs provided in an embodiment of the present invention; in the figure, B represents a gasket and C represents a plug assembled into the gasket. Figure 2 A quick-installation device for terminal plugs provided for embodiments of the present invention comprises... Figure 1 Enlarged schematic diagram of part A; Figure 3 A quick-installation device for terminal plugs provided for embodiments of the present invention comprises... Figure 1 A schematic diagram of the main view plane; Figure 4 A quick-installation device for terminal plugs provided for embodiments of the present invention comprises... Figure 1 The diagram is taken from a bottom view, showing the first drive unit removed. Figure 5 A top-view schematic diagram of a quick-installation device for terminal plugs provided in an embodiment of the present invention; Figure 6This is a schematic diagram of the cut-out structure of a quick-installation device for terminal plugs provided in an embodiment of the present invention during operation.

[0015] In the diagram: 1. Horizontal frame; 2. Vertical frame; 201. Limit seat; 202. Rubber seat; 3. Horizontal groove seat; 5. Tooling; 6. Top seat; 7. First limit switch; 8. Second limit switch; 9. Clamping device; 901. Pressure plate; 902. Connecting frame; 903. Gas spring; 904. Rubber roller; 9011. Spring seat; 101. First through hole; 301. Second through hole; 302. Push seat; 303. Carrier seat; 304. Stepped groove. Detailed Implementation

[0016] The above and other embodiments and advantages of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0017] In one implementation, such as Figures 1-6 As shown: This embodiment provides a quick-installation device for terminal plugs, including a horizontal frame 1, a vertical frame 2 fixed on the horizontal frame 1, a horizontal slot 3 provided inside the horizontal frame 1, the horizontal slot 3 simultaneously guides the washer and plug into the bottom of the vertical frame 2, a fixture 5 is provided on the vertical frame 2, a top seat 6 is provided below the fixture 5 on the horizontal slot 3, a heating element is provided inside the top seat 6, and a clamping device 9 and a second driving device are provided on the fixture 5. When the top seat 6 passes through the washer and pushes the plug into the clamping device 9 for clamping, it also heats the inner ring of the washer to expand. The slot 3 is provided with a first limit switch 7 at the left and right travel position relative to the tooling 5, and the tooling 5 is provided with a second limit switch 8 at the up and down travel position relative to the top seat 6. The second limit switch 8 is electrically connected to the clamping device 9 and the second drive device. The bottom of the top seat 6 is provided with a first drive device electrically connected to the first limit switch 7. The quick-installation device for the terminal plug is also provided with a controller. The controller is provided with at least a timing module and a control module. The timing module is connected to the first limit switch 7 and the second limit switch 8 and is controlled by the control module.

[0018] like Figure 1 , Figure 2As shown, washer B is placed in the transverse slot 3, and plug-in C is placed above washer B. The inner ring size of washer B is smaller than the outer contour size of plug-in C, achieving a tight fit after assembly. Washer B and plug-in C are synchronously conveyed to the bottom of fixture 5 and above the station where top seat 6 is located via transverse slot 3. When the traveling end of transverse slot 3 makes precise contact with the first limit switch 7, the following technical effects will occur: first, it triggers a third-party heating device to provide heat to the heating element in top seat 6; second, it triggers the first driving device to push top seat 6 through the inner ring of washer B, instantly heating and expanding the inner ring of washer B. Then, insert C is pushed upwards into clamping device 9. After the timing module in the control system counts down, the first drive device descends, and the second drive device drives clamping device 9 to descend. Clamping device 9 then drives insert C to descend, and the continued descent of the second drive device pushes insert C into the thermally expanded washer B. The transverse slot 3 continues to push the assembly of insert C and washer B to the right end for discharge, and then returns to the original position. At this time, the first limit switch 7 is disabled, the heating element in the top seat 6 stops heating, and the first and second drive devices return to their positions, ready for the next use. As can be seen from the above assembly principle, after the washer B cools and shrinks, it forms an interference fit, realizing a non-destructive fastening connection between insert C and washer B. The heat-melting effect of washer B is used to lock and fix it to insert C, and a rapid assembly is completed. This solves the problems of poor locking effect after insertion of plug-in C and gasket B, and the mechanical stress generated by cold pressing assembly easily damaging the brittle gasket and reducing the sealing performance of plug-in C and gasket B. In the above assembly process, the top seat 6 pushes plug-in C into the clamping device 9 above the gasket B for clamping while the gasket B completes rapid thermal expansion. The structure is compact, the stroke is short, and the efficiency is high. The stroke control realizes automation.

[0019] In addition, when the clamping device 9 inserts plug C into washer B, the bottom end of plug C eventually falls into the transverse slot 3 and forms pressure between it and the transverse slot 3. At this time, the clamping device 9 continues to descend, while plug C stops moving. The top end of plug C provides a reverse thrust to the second limit switch 8, triggering the second limit switch 8 to control the second drive device to drive the fixture 5 to descend. The fixture 5 drives the clamping device 9 to descend and insert plug C into washer B to complete the tight welding assembly. At the same time, the first drive device retracts downward to the original position. After the timing module counts down, the second drive fixture 5 rises to reset. At this time, the locking force of plug C inserted into washer B is greater than the clamping force of clamping device 9. As clamping device 9 rises, it lifts the assembly of plug C and washer B upward, cooperating with other robotic arms or other unloading mechanisms to achieve high-level unloading. The power for the device to drive plug C to rise and trigger the second limit switch 8 comes from plug C (the product) itself, making the structure compact and simple.

[0020] A third drive device (not shown in the figure) is fixed inside the transverse frame 1. The third drive device drives the transverse slot 3. The first drive device, the second drive device and the third drive device are electric cylinders. The use of multiple electric cylinders and limit switches to form an electrical linkage relationship realizes electrical automation and reduces mechanical coordination.

[0021] like Figures 2 to 6 As shown, a first through hole 101 is formed upwards in the transverse frame 1, and a second through hole 301 is formed in the transverse slot 3. When the transverse slot 3 moves to the bottom of the fixture 5, it brings the second through hole 301 to overlap with the first through hole 101. When the transverse slot 3 brings the washer B and the plug-in C into the bottom of the fixture 5 (assembly station), the inner ring of the washer B is vertically connected to the first through hole 101 on the transverse frame 1 and the second through hole 301 on the transverse slot 3. That is, they are all in the same assembly station at this time. The first drive device pushes the top seat 6 to rise along the first through hole 101 and enter the inner ring of the washer B. While continuing to rise through the second through hole 301, it pushes the plug-in C, which falls on the washer B, into the clamping device 9 of the fixture 5.

[0022] like Figure 2 , Figure 5 as well as Figure 6 As shown, the transverse slot seat 3 includes a push seat 302 fixed on the third drive device, and a carrier 303 fixed inside the push seat 302. A stepped groove 304 is formed downward from the top of the carrier 303. A second through hole 301 is formed on the bottom surface of the carrier 303. The stepped groove 304 is located above the second through hole 301, and the stepped groove 304 communicates vertically with the second through hole 301. In use, the washer B is positioned on the stepped groove 304 as shown in the figure, and pushed into the lower part of the tooling 5 (assembly station) with the push seat 302. After the washer B and the plug-in C are inserted (assembled), the terminal on the plug-in C extends into the second through hole 301.

[0023] It should be further explained that a positioning plate or positioning bolt is provided on the carrier 303. The positioning plate or positioning bolt protrudes upward from the top surface of the carrier 303 to ensure that the washer B and the plug-in C are positioned when placed. When they are sent to the tooling position 5 via the carrier 303, they can be accurately assembled. This positioning method is existing technology and will not be described in detail in this invention.

[0024] In another embodiment, the clamping device 9 includes a pressure plate 901 fixed to the bottom of the second drive device, connecting frames 902 hinged to the left and right ends of the pressure plate 901, a gas spring 903 disposed above the pressure plate 901 and driven between the left and right connecting frames 902, and a rubber roller 904 connected to the left and right connecting frames 902. The second limit switch 8 is fixed to the bottom surface of the pressure plate 901 and is located in the raised position of the top seat 6. When the top seat 6 pushes the plug-in to rise to contact the second limit switch 8, it triggers the second limit switch 904. The second limit switch 8 activates the second drive device to push the pressure plate 901 down. The pressure plate 901 pushes the plug-in down and welds it into the inner ring of the washer. A spring seat 9011 is fixed on the bottom surface of the pressure plate 901. The spring seat 9011 faces downward and corresponds to the rising position of the plug-in. There are at least four spring seats 9011, which are evenly distributed. The second limit switch 8 is located between the four spring seats 9011. When the plug-in rises, the top surface first squeezes the spring seat 9011 to compress and store force, and then triggers the second limit switch 8.

[0025] In this embodiment, the top surface of the plug-in first contacts the spring seats 9011 (at least four evenly distributed points) fixed to the bottom surface of the pressure plate 901. The spring seats 9011 contract under pressure, absorbing the upward kinetic energy of the plug-in C and storing elastic potential energy, thus buffering mechanical impact. The plug-in C continues to rise, passing through the gap between the spring seats 9011 and contacting the second limit switch 8 located at its center. At this time, the spring seats 9011 have completed pre-compression, ensuring precise alignment between the plug-in C and the trigger position of the second limit switch 8, eliminating the risk of false triggering caused by vibration. After the second limit switch 8 is triggered, the second drive device is immediately activated to push the pressure plate 901 downward. The pressure plate 901 synchronously drives the gas spring 903 and rubber roller 904 downward through the connecting brackets 902 hinged on both sides: the gas spring 903 provides a constant downward pressure, ensuring the pressure plate 901 descends smoothly; the rubber roller 904 flexibly presses against the plug-in surface, avoiding rigid contact that could damage the plug-in surface; the pressure plate 901 continuously presses down on the plug-in, causing the plug-in C to insert into the inner ring of the heated and expanded washer B. As washer B cools and shrinks, it forms an interference fit with insert C. The elastic pressure of rubber roller 904 ensures that insert C and washer B are axially tightly welded without displacement.

[0026] The top seat 6 has the same shape as the inner ring of the gasket. It consists of two parts: an outer metal shell with thermal conductivity and a heating element that provides heating energy inside the metal shell. The shape of the heating element is the same as that of the metal shell, and the outer wall of the heating element is in close contact with the inner wall of the metal shell.

[0027] The above orientation references do not represent the specific orientations of each component in this implementation scheme. This implementation scheme is only for the convenience of describing the scheme and to make relative descriptions based on the orientations of the references. In reality, the specific orientations of each component are based on their actual installation and use, as well as the orientation descriptions that are customary to those skilled in the art. This is hereby stated.

[0028] The specific embodiments described above further illustrate the inventive purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the scope of protection of the present invention. In particular, it should be noted that any modifications, equivalent substitutions, or improvements made by those skilled in the art within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A quick-connect device for terminal plugs, characterized in that, The system includes a horizontal frame (1), on which a vertical frame (2) is fixed. A horizontal slot (3) is provided inside the horizontal frame (1). The horizontal slot (3) simultaneously carries the gasket and insert into the bottom of the vertical frame (2). A fixture (5) is provided on the vertical frame (2). A top seat (6) is provided below the fixture (5) on the horizontal slot (3). A heating element is provided inside the top seat (6). A clamping device (9) and a second driving device are provided on the fixture (5). The top seat (6) passes through the pad. When the ring pushes the plug into the clamping device (9) and clamps it, the inner ring of the washer is heated to expand. The transverse slot seat (3) is provided with a first limit switch (7) at the left and right travel position relative to the tooling (5). The tooling (5) is provided with a second limit switch (8) at the up and down travel position relative to the top seat (6). The second limit switch (8) is electrically connected to the clamping device (9) and the second drive device. The bottom of the top seat (6) is provided with a first drive device electrically connected to the first limit switch (7). A third drive device is fixed inside the transverse frame (1), and the third drive device drives the transverse slot (3). The transverse frame (1) has a first through hole (101) opening upwards, and the transverse slot (3) has a second through hole (301). When the transverse slot (3) moves to the bottom of the tooling (5), it brings the second through hole (301) to overlap with the first through hole (101) vertically. The transverse slot seat (3) includes a push seat (302) fixed on the third drive device, and a carrier (303) fixed in the push seat (302). A stepped slot (304) is provided from the top of the carrier (303) downwards. The second through hole (301) is opened on the bottom surface of the carrier (303). The stepped slot (304) is located above the second through hole (301), and the stepped slot (304) communicates vertically with the second through hole (301).

2. The quick-installation device for terminal plugs according to claim 1, characterized in that, The first drive device, the second drive device and the third drive device are electric cylinders. The quick-installation device for the terminal plug is also equipped with a controller. The controller is equipped with at least a timing module and a control module. The timing module is connected to the first limit switch (7) and the second limit switch (8) and is controlled by the control module.

3. The quick-installation device for terminal plugs according to claim 2, characterized in that, A limiting seat (201) is fixed on the front of the vertical frame (2), and the limiting seat (201) extends horizontally forward and is provided with a rubber seat (202).

4. The quick-installation device for terminal plugs according to claim 3, characterized in that, The clamping device (9) includes a pressure plate (901) fixed to the bottom of the second drive device, a connecting frame (902) hinged to the left and right ends of the pressure plate (901), a gas spring (903) disposed above the pressure plate (901) and driven between the left and right connecting frames (902), and a rubber roller (904) connected to the left and right connecting frames (902). The second limit switch (8) is fixed to the bottom surface of the pressure plate (901) and located in the rising position of the top seat (6). When the top seat (6) pushes the plug-in to rise to contact the second limit switch (8), it triggers the second limit switch (8) and starts the second drive device through the second limit switch (8) to push the pressure plate (901) down. The pressure plate (901) pushes the plug-in down and welds it into the inner ring of the washer.

5. The quick-installation device for terminal plugs according to claim 4, characterized in that, A spring seat (9011) is fixed on the bottom surface of the pressure plate (901). The spring seat (9011) faces downward and corresponds to the rising position of the plug. There are at least four spring seats (9011) and they are evenly distributed. The second limit switch (8) is located between the four spring seats (9011). When the plug rises, the top surface first squeezes the spring seat (9011) to compress and store force, and then triggers the second limit switch (8).

6. The quick-installation device for terminal plugs according to claim 5, characterized in that, The top seat (6) has the same shape as the inner ring of the gasket. It consists of an outer metal shell and a heating element inside the metal shell. The heating element has the same shape as the metal shell, and the outer wall of the heating element is in close contact with the inner wall of the metal shell.

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