Connector automatic pin inserting assembly machine

Abstract

The invention relates to the technical field of connector pin inserting equipment, in particular to a connector automatic pin inserting assembly machine which comprises a conveying track and a plurality of pin inserting mechanisms sequentially arranged in the conveying direction of the conveying track, and each pin inserting mechanism comprises a pin inserting assembly, a bending assembly and a cutting assembly which are sequentially arranged in the conveying direction of the conveying track. Material conveying assemblies are arranged at the positions, corresponding to the needle inserting mechanisms, of the conveying track. Pushing assemblies are arranged at the positions, corresponding to the needle inserting assemblies, of the conveying track. Through the arrangement, the pin terminals in each row of the connector can be respectively assembled through the pin mechanisms, so that the pin assembling precision can be improved; when the pin terminals are assembled, the pushing assembly can push the pin holes of the connector base to be sequentially aligned with the pin assembly to achieve single insertion of the pin terminals, the insertion precision of the pin terminals can be effectively improved, the problems of pin kneeling and pin mistake in the pin insertion process are avoided, and therefore efficient and accurate assembly of the connector is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of connector pin equipment, and in particular to an automatic connector pin assembly machine. Background Art

[0002] Pin connectors are used to establish electrical connections between devices and power sources, or between devices. They typically come in three different sizes: short, medium, and long pins. During production, the metal pin terminals must be inserted into the connector's mounting holes. Traditionally, this process involves manual insertion, which is inefficient and costly, and prone to manual error, resulting in low product yields.

[0003] Therefore, some automatic pin insertion machines have emerged in the prior art, which can automatically insert pin terminals into the connector base, thereby improving pin insertion efficiency and pin insertion accuracy. However, such automatic pin insertion machines in the prior art usually insert an entire row of pin terminals into the mounting holes of the plastic body simultaneously, resulting in the phenomenon that the spacing between adjacent pin terminals is easily reduced due to deformation during the batch pressing process of the pin terminals, which makes it easy for adjacent pin terminals to "stick to the pin" and be inserted into the same mounting hole. Secondly, the radial deflection caused by the deformation of the pins can also lead to positioning misalignment, resulting in a "crooked pin" phenomenon. In addition, when the bell-mouth structure at the end of the pin contacts the plastic hole wall on one side, it will also cause the bell-mouth edge to curl inward and produce plastic deformation, resulting in a "kneeling pin", which directly leads to the loss of contact clamping force when the pins are connected, thereby seriously affecting the assembly accuracy and assembly efficiency of the connector. Summary of the Invention

[0004] In order to solve the problems in the above-mentioned background technology, the present invention provides an automatic connector pin assembly machine, which not only realizes the automatic assembly of connector pin terminals, but also avoids the problems of "kneeling PIN" and "wrong PIN" during the pin insertion process, thereby realizing efficient and accurate assembly of connectors.

[0005] The solution adopted by the present invention to solve its technical problem is: a connector automatic pin assembly machine, comprising a frame, a conveying track arranged on the frame, and a pin insertion mechanism and a back cover assembly mechanism arranged in sequence along the conveying direction of the conveying track, wherein the pin insertion mechanism is provided with multiple groups and is arranged in sequence along the conveying direction of the conveying track, each group of the pin insertion mechanism respectively inserts pins into each row of pin holes of the connector base, and each of the pin insertion mechanisms comprises a pin insertion assembly, a bending assembly and a cutting assembly arranged in sequence along the conveying direction of the conveying track, a material transfer assembly for synchronously transferring the connector base between the pin insertion assembly, the bending assembly and the cutting assembly is provided at a position on the conveying track corresponding to each group of the pin insertion mechanisms, and a pushing assembly for pushing the connector base to move and aligning its pin holes with the pin insertion assembly in sequence is provided at a position on the conveying track corresponding to each group of the pin insertion assemblies.

[0006] The starting end of the conveying track is also connected to a base loading tray for loading the connector base, and the end of the conveying track is connected to a detection mechanism for detecting the assembled connector.

[0007] Furthermore, a transmission channel adapted to the outer shape of the connector base is provided inside the transmission track, and a transmission opening connected to the transmission channel is provided on the surface of the plug-in mechanism corresponding to the transmission channel. When the connector base enters the transmission channel, the pin portion of the connector base passes through the transmission opening.

[0008] Furthermore, the material transfer assembly includes a dual-axis module arranged on a conveying track and a synchronous shift plate connected to the output end of the dual-axis module. The synchronous shift plate is arranged on the front side of the conveying opening, and each station of the pin mechanism corresponding to the bottom of the synchronous shift plate is provided with a bayonet for clamping the pin part of the connector base.

[0009] Furthermore, the pin assembly includes a feeding slide arranged on the front side of the conveying track and a pin module installed at the end of the feeding slide. The front section of the feeding slide is tilted and connected to a material rack for supplying pin terminals. The rear section of the feeding slide is parallel to the conveying track and a transport motor is installed on the top. The pin module is installed at the rear end of the feeding slide and vertically faces the end face of the conveying track. The output end of the transport motor is installed with a conveying gear disc that transports a single pin terminal to the pin module for insertion.

[0010] Furthermore, the pin module includes a pin base, a pin cylinder installed on the pin base and arranged vertically toward the conveying track, and a guide plate connected to the output end of the pin cylinder and movably inserted into the pin base. A movable block is provided in the pin base, and a guide channel is provided on the surface of the guide plate for driving the movable block to move in the vertical direction. The movable block is movably engaged in the guide channel, and a pin chuck corresponding to the end of the feeding slide is installed on the movable block.

[0011] Furthermore, the bending assembly includes a bending bracket, a bending drive module fixedly mounted on the bending bracket and arranged toward the conveying track, and a primary bending module, a secondary bending module, and a bending holding module connected to the output end of the bending drive module and sequentially arranged along the conveying direction of the conveying track. The front bending end faces of the primary bending module, the secondary bending module, and the bending holding module are all provided with bending grooves adapted to each pin terminal. The primary bending module is used to push the pin terminal from the bottom of the pin terminal to bend it into a 45° shape, and the secondary bending module and the bending holding module are used to bend the pin terminal into a 90° shape and maintain it.

[0012] Furthermore, the cutting assembly includes a cutting drive module and a cutting head connected to the output end of the cutting drive module. A cutting opening is provided at the position of the cutting head corresponding to the transmission track. The cutting head is movably inserted into the cutting opening. A waste pipe connected to the cutting opening is also provided on the transmission track.

[0013] Furthermore, the pushing assembly includes a screw module arranged parallel to the transmission track and a lifting cylinder connected to the screw module, and the output end of the lifting cylinder is connected to a clamping plate for clamping the connector base.

[0014] Furthermore, the back cover assembly mechanism includes a back cover loading tray and a transfer assembly component for transferring and assembling the bottom cover loaded on the back cover loading tray to the connector base, the transfer assembly component includes an assembly frame, an assembly drive module arranged on the assembly frame and an assembly cylinder vertically installed on the assembly drive module, the output end of the assembly cylinder is connected to a starting chuck for transferring and assembling the back cover, and the transfer assembly component is also provided with a residual material cutting component for cutting off excessively long pin terminals on the side along the transmission direction of the transmission track.

[0015] Furthermore, the detection mechanism includes two groups of detection components arranged in sequence along the conveying track and a defective product sorting component arranged at the end of the conveying track. The detection component includes a detection cylinder and a detection fixture connected to the output end of the detection cylinder. The detection fixture is provided with a plurality of electrical measurement probes corresponding to the pin terminals.

[0016] The defective product sorting component includes a sorting cylinder and a sorting claw connected to the output end of the sorting cylinder. A defective product outlet is provided at the position of the conveying track corresponding to the sorting claw, and a blanking channel is provided at the position of the bottom of the sorting claw corresponding to the defective product outlet.

[0017] In summary, the beneficial effects of the present invention are:

[0018] 1. The present invention arranges multiple groups of pin insertion mechanisms in sequence along the conveying direction of the conveying track, so that the pin terminals of each row of the connector can be assembled through each pin insertion mechanism respectively, which can improve the assembly accuracy of each row of pins while ensuring the pin insertion efficiency, thereby improving the production skill level of the connector.

[0019] 2. The present invention provides a pin insertion mechanism including a pin assembly, a bending assembly and a cutting assembly, and provides a pushing assembly at a position corresponding to the transmission track and the pin assembly. When the pin terminal is assembled, the pushing assembly can push the various pin holes of the connector base to align with the pin assembly in sequence, so that each pin terminal can be plugged into the connector base in sequence under the action of the pin assembly, realizing a single plugging of the pin terminal, which can effectively improve the plugging accuracy of the pin terminal, avoid the problems of kneeling PIN and wrong PIN during the pin insertion process, and thus realize efficient and accurate assembly of the connector.

[0020] 3. The present invention sets a material transfer assembly at the position corresponding to each pin insertion mechanism on the transmission track, so that after the connector base completes the pin insertion in the pin insertion assembly, it can be moved to the bending assembly driven by the material transfer assembly to bend the entire row of pin terminals, and after the bending is completed, the material transfer assembly transfers the material to the cutting assembly to cut the pin positions, thereby realizing the sequential and synchronous transfer of the connector base between the pin insertion assembly, the bending assembly and the cutting assembly, simplifying the transfer steps and improving the overall assembly efficiency of the connector; and the material transfer assembly can also realize the precise movement of the connector base by synchronously transferring the connector base, thereby improving the pin insertion accuracy.

[0021] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following specifically cites preferred embodiments and describes them in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 Schematic diagram of the structure of this embodiment;

[0023] Figure 2 This is a schematic structural diagram of the transmission track of this embodiment;

[0024] Figure 3 Schematic diagram of the structure of the pin insertion mechanism of this embodiment;

[0025] Figure 4 Schematic diagram of the structure of the pin assembly of this embodiment;

[0026] Figure 5 Schematic diagram of the structure of the bending assembly of this embodiment;

[0027] Figure 6 It is a structural schematic diagram of another embodiment of a bending assembly;

[0028] Figure 7 Schematic diagram of the structure of the cutting assembly of this embodiment;

[0029] Figure 8 It is a structural schematic diagram of another embodiment of the cutting assembly;

[0030] Figure 9 It is a structural diagram of the rear cover assembly mechanism;

[0031] Figure 10 It is a structural diagram of the detection mechanism.

[0032] In the figure: 1. Frame; 2. Conveyor track; 21. Conveyor opening; 3. Pin insertion mechanism; 31. Pin insertion assembly; 311. Feed slide; 312. Unwinding rack; 313. Material transport motor; 314. Conveyor gear disc; 32. Bending assembly; 321. Bending bracket; 322. Bending drive module; 323. Primary bending module; 324. Secondary bending module; 325. Bending holding module; 326. Bending groove; 33. Cutting assembly; 331. Cutting drive module; 332. Cutter head; 333. Waste pipe; 34. Pin insertion module; 341. Pin insertion base; 342. Pin insertion cylinder; 343. Guide plate; 344. Movable block; 345. Guide channel; 346. Pin chuck; 4. Back cover assembly mechanism; 41. Back cover loading tray; 42. Transfer assembly component; 421. Assembly frame; 422. Assembly drive module; 423. Assembly cylinder; 424. Start chuck; 43. Residual material cutting component; 5. Material transfer component; 51. Dual-axis module; 52. Synchronous shift plate; 53. Bayonet; 6. Pushing component; 61. Screw module; 62. Lifting cylinder; 63. Clamping plate; 7. Base loading tray; 8. Detection mechanism; 81. Detection component; 811. Detection cylinder; 812. Detection fixture; 813. Electrical probe; 82. Defective product sorting component; 821. Sorting cylinder; 822. Sorting claw; 823. Blanking channel. DETAILED DESCRIPTION

[0033] In order to make the contents of the present invention more clearly understood, the present invention is further described below based on specific embodiments in conjunction with the accompanying drawings.

[0034] It should be noted that the terms "center," "upper," "lower," "front," "back," "left," "right," "inner," and "outer" used herein to indicate positions or locations are based on the positions or locations shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Unless otherwise specified, "plurality" means two or more.

[0035] Unless otherwise specified or limited, the terms "mounted," "connected," and "connected" 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; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on specific circumstances.

[0036] like Figures 1 to 3As shown, a connector automatic pin assembly machine can automatically assemble the pin terminals of the connector, thereby effectively improving the assembly efficiency and assembly accuracy, while avoiding problems such as "kneeling PIN" and "wrong PIN", and realizing efficient and accurate assembly of the connector. The connector automatic pin assembly machine of this embodiment includes a frame 1, a conveying track 2 provided on the frame 1, and a pin mechanism 3 and a back cover assembly mechanism 4 arranged in sequence along the conveying direction of the conveying track 2. The conveying track 2 of this embodiment is set through the frame 1, and the starting end is connected to the vibration plate-type base loading tray 7 to realize automatic loading of the connector base, and the end is connected to the detection mechanism 8 to sort the good and defective products after the connector is assembled. When the connector is assembled, the base loading tray 7 can vibrate and load the machine base to the conveying track 2. The conveying track 2 conveys the connector base and completes the plugging, bending and waste cutting of the pin terminals when conveying it to the pin mechanism 3. Then, the back cover is assembled when passing through the back cover assembly mechanism 4, and finally it is conveyed to the detection mechanism 8 for detection, thereby completing the automatic assembly and detection of the connector. In addition, since the connector is usually provided with multiple rows of pins, in order to improve the pin assembly effect and accuracy of the connector, the pin mechanism 3 of this embodiment is provided with multiple groups, specifically three groups. The three groups of pin mechanisms 3 are arranged in sequence along the conveying direction of the conveying track 2, so that when the connector base passes through the three groups of pin mechanisms 3 in sequence along the conveying track 2, the three groups of pin mechanisms 3 can respectively insert pins into each row of pin holes on the connector base in sequence, thereby realizing the row-by-row assembly of the connector.

[0037] like Figure 2 As shown, the conveying track 2 of this embodiment includes a conveying channel arranged inside and a conveying opening 21 arranged on the end face of its corresponding plug-in mechanism, wherein the structure of the conveying channel is adapted to the outer structure of the connector base, and the conveying opening 21 is connected to the conveying channel, so that the connector base can enter the conveying channel from the end of the conveying track 2 after being oriented and loaded by the base loading tray 7, and one end of the connector base for connecting the pin terminal is exposed from the conveying opening 21, so that the pin mechanism 3 can plug the pin terminal into the connector base from the side corresponding to the conveying opening 21, thereby realizing the assembly of the pin terminal.

[0038] like Figures 3 to 8 As shown, the pin mechanism 3 of this embodiment includes a pin assembly 31, a bending assembly 32 and a cutting assembly 33 which are sequentially arranged along the conveying direction of the conveying track 2, so that the connector base can assemble the pin terminals in the pin assembly 31, and bend the assembled pin terminals in the bending assembly 32, and then the excess length of the waste is cut off by the cutting assembly 33, and the plug-in, bending and cutting processes of one row of pin terminals of the connector base are carried out, thereby realizing the automatic assembly of the connector pins.

[0039] In order to realize the movement of the connector base in the conveying track 2, so that the connector base can pass through the pin assembly 31, the bending assembly 32 and the cutting assembly 33 in sequence for pin assembly, bending and cutting, this embodiment provides a material transfer assembly 5 at the position of the conveying track 2 corresponding to the pin mechanism 3, so that after the connector base is loaded through the base loading tray 7, it can be moved along the conveying track 2 under the drive of the material transfer assembly 5, and then pass through the pin assembly 31, the bending assembly 32 and the cutting assembly 33 in sequence to complete the pin insertion, bending and cutting, thereby completing the automatic assembly of the connector pin.

[0040] Specifically, such as Figure 2 As shown, the material transfer assembly 5 of this embodiment includes a dual-axis module 51 connected to the back of the conveying track 2 and a synchronous shift plate 52 connected to the output end of the dual-axis module 51, wherein the dual-axis module 51 includes an X-axis moving mechanism and a Z-axis moving mechanism connected to the X-axis moving mechanism, the synchronous shift plate 52 is connected to the output end of the Z-axis moving mechanism and is arranged on the front side of the conveying opening 21, and a bayonet 53 for fixing the connector base is provided at the bottom of the synchronous shift plate 52, so that after the connector base is loaded onto the conveying track 2, the Z-axis moving mechanism in the dual-axis module 51 can drive the synchronous shift plate 52 to move downward, through The bayonet 53 clamps the part of the connector base exposed to the conveying opening 21, and then drives the connector base in the bayonet 53 to move one station horizontally under the action of the X-axis moving mechanism, thereby realizing the conveying movement of the connector base within the conveying track 2; in addition, a bayonet 53 is provided at the position corresponding to each station of the synchronous shift plate 52 and the pin insertion mechanism 3 of this embodiment, so that when the synchronous shift plate 52 moves, it can simultaneously drive the connector base at each station to move one station horizontally, thereby realizing the synchronous movement of each connector base, which can effectively reduce the moving time and thus improve the pin insertion efficiency of the connector.

[0041] like Figures 3 and 4 As shown, the connector base moves along the conveyor track 2 to the pin mechanism 3, where pins are assembled, bent, and waste removed in sequence. In this embodiment, the pin terminals are assembled using a pin assembly 31. The pin assembly 31 includes a feed slide 311 provided on the front side of the conveyor track 2 and a pin module 34 installed at the end of the feed slide 311. The feed slide 311 can load the pin terminals, and the pin module 34 pushes the loaded pin terminals to the end in sequence and plugs them into the pinholes of the connector base, thereby achieving automatic assembly of the pin terminals. During assembly, the pin module 34 only pushes a single pin terminal for plugging, i.e., assembling the pin terminals individually. This ensures accurate plugging of the pin terminals, improves the assembly accuracy of the pin terminals, avoids problems such as "kneeling PIN" and "wrong PIN", and improves the assembly quality of the connector.

[0042] Specifically, such as Figure 4As shown, the front section of the feeding slide 311 of this embodiment is tilted and connected to the unloading rack 312, wherein the unloading rack 312 is wound with a material belt containing side-by-side pin terminals, and the feeding slide 311 is tilted to facilitate the movement of the material belt along the tilted section to facilitate the loading of the pin terminals; the rear section of the feeding slide 311 of this embodiment is parallel to the conveying track 2 and a transport motor 313 is installed on the top, wherein the output end of the transport motor 313 is provided with a conveying gear disc 314, and one end of the pin terminal is provided with a socket for conveying. When the pin terminal is loaded, the transport motor 313 starts to drive the conveying gear disc 314 for conveying, and each tooth of the conveying gear disc 314 is respectively inserted into the socket of each pin terminal, thereby driving the single pin terminal to move to the end of the feeding slide 311 in turn. The pin module 34 of this embodiment is installed at the rear end of the feeding slide 311 and is perpendicular to the end face of the conveying track 2. When the transport motor 313 drives the single end of a single pin to move to the end of the feeding track, the pin terminal just corresponds to the pin module 34, and is thus inserted into the socket of the connector base under the push of the pin module 34 to complete the assembly of the single pin terminal.

[0043] like Figure 4 As shown, the pin module 34 of this embodiment includes a pin base 341, a pin cylinder 342 installed on the pin base 341 and arranged vertically toward the conveying track 2, and a guide plate 343 connected to the output end of the pin cylinder 342 and movably plugged into the pin base 341, wherein a movable block 344 is vertically arranged in the pin base 341, and a pin clamp 346 corresponding to the end of the feeding slide 311 is installed on the movable block 344, and a guide channel 345 for driving the movable block 344 to move in the vertical direction is provided on the surface of the guide plate 343, so that when the pin terminal is plugged in in this embodiment, the pin cylinder 342 drives the guide plate 343 to move forward close to the conveying track 2, and at this time the movable block 344 is driven by the guide channel 345 It moves downward in the pin base 341, thereby driving the pin clamp 346 installed on the movable block 344 to move downward to clamp the pin terminal at the end of the feeding slide 311. Then, as the guide plate 343 continues to move forward, the pin clamp 346 clamping the pin terminal can be pushed forward to approach the conveying track 2 and plug the pin terminal into the jack of the connector base, thereby completing the assembly of a single pin terminal; then, the pin cylinder 342 drives the guide plate 343 to retreat, and the movable block 344 is reset under the action of the guide channel 345. When the new pin terminal moves to the end of the feeding slide 311 driven by the transport motor 313, the pin cylinder 342 continues to drive the guide plate 343 forward to realize the continuous assembly and plugging of the pin terminals.

[0044] In another embodiment, the pin module 34 may also include a pin cylinder 342 arranged vertically toward the conveying guide rail and a pneumatic chuck connected to the piston rod of the pin cylinder 342, so that when the pin cylinder 342 is started, the pneumatic chuck can be driven to move forward to approach the pin terminal and clamp it, and then continue to move forward to plug the pin terminal into the connector base in the conveying track 2, which can also achieve the same technical effect.

[0045] like Figure 2 As shown, in order to enable the pin module 34 to accurately plug each pin terminal into the corresponding plug-in hole of the connector base, this embodiment further provides a pushing component 6 at the position corresponding to the conveying track 2 and each group of pin components 31, so that after the pin module 34 plugs a single pin terminal, the pushing component 6 can drive the connector base to move and fine-tune, so that the new pin hole on the connector base can be aligned with the pin module 34, thereby facilitating the pin module 34 to accurately plug the new pin terminal into the connector base, thereby achieving high-quality assembly of the connector pins.

[0046] Specifically, the push assembly 6 of this embodiment includes a screw module 61 arranged parallel to the conveyor track 2 and a lifting cylinder 62 connected to the screw module 61. The output end of the lifting cylinder 62 is connected to a clamping plate 63 for clamping the connector base. After the pin module 34 completes the insertion of a pin terminal, the lifting cylinder 62 can drive the clamping plate 63 to move upward, thereby clamping the connector at the position exposed to the conveyor clamping port 53. Subsequently, driven by the screw module 61, the lifting cylinder 62 moves horizontally along the conveyor track 2 to fine-tune the position of the connector base, aligning the new pinhole in the connector base with the pin module 34, thereby facilitating the precise insertion of the pin terminal. Furthermore, fine-tuning the position of the connector base through the screw module 61 can effectively improve adjustment accuracy, thereby improving the insertion accuracy of the pins and reducing the occurrence of "kneeling PIN" and "wrong PIN" problems.

[0047] like Figure 2 、 Figure 5 and Figure 6As shown, after the pin terminals are assembled in the pin assembly 31, the connector base is moved horizontally by one station via the material transfer assembly 5 to the position of the conveyor track 2 corresponding to the bending assembly 32, where they are bent by the bending assembly 32. The bending assembly 32 of this embodiment includes a bending bracket 321, a bending drive module 322 mounted on the bending bracket 321, and a primary bending module 323, a secondary bending module 324, and a bending holding module 325 connected to the output end of the bending drive module 322. After the pin terminals are assembled, they are driven by the material transfer assembly 5 to sequentially pass through the primary bending module 323, the secondary bending module 324, and the bending holding module 325 for three bending steps, thereby bending the straight pin terminals into a vertical 90° shape. In this embodiment, multiple connector bases can be driven by the material transfer component 5 to be respectively located at the corresponding positions of the primary bending module 323, the secondary bending module 324 and the bending holding module 325, so that multiple connector bases with different bending progress can be bent in different orders at the same time, which can effectively improve the bending efficiency.

[0048] like Figure 5 and Figure 6 As shown, the front bending end surfaces of the primary bending module 323, the secondary bending module 324 and the bending holding module 325 of this embodiment are all provided with bending grooves 326 adapted to each pin terminal, so that when the pin terminal is bent, the bending drive module 322 can drive the primary bending module 323, the secondary bending module 324 and the bending holding module 325 to move forward close to the conveying track 2, and each pin terminal is sequentially embedded in the bending groove 326 of the primary bending module 323, the secondary bending module 324 and the bending holding module 325, so that the pin terminal is moved along the bending groove 326 under the push of the bending drive module 322 to realize the bending of the pin terminal. In this embodiment, the straight pin terminals are sequentially bent by the primary bending module 323, the secondary bending module 324, and the bend-holding module 325, so that the pin terminals are ultimately bent at 90°, effectively improving the bending accuracy of the pin terminals. Specifically, the straight pin terminals can be bent to a 45° angle by the primary bending module 323, while the pin terminals bent by the primary bending module 323 are bent to nearly 90° by the secondary bending module 324. The bend-holding module 325 bends the pin terminals after the primary and secondary bending, ensuring that the pin terminals maintain the 90° bend, thus preventing deformation recovery that could affect the assembly quality of the connector.

[0049] like Figure 5As shown, in one embodiment, the bending drive module 322 is a bending cylinder arranged vertically toward the conveying track 2, and the primary bending module 323, the secondary bending module 324 and the bending holding module 325 are all connected to the output end of the bending cylinder and arranged vertically toward the conveying track 2. At the same time, the bending bracket 321 of this embodiment is also provided with a guide channel 345 for driving the primary bending module 323 to move from the lower net, so that when the bending cylinder is started to push the primary bending module 323, the secondary bending module 324 and the bending holding module 325 forward to approach the conveying track 2, the primary bending module 323 can be tilted and moved from the bottom of the pin terminal to bend the straight pin terminal into a 45° shape, and the secondary bending module 324 and the bending holding module 325 completely bend the pin terminal to 90° and maintain it, thereby completing the bending process of the pin terminal.

[0050] like Figure 6 As shown, in another embodiment, the bending drive module 322 includes a first bending cylinder obliquely arranged at the side wall of the bending bracket 321 and located below the conveying track 2, and a second bending cylinder vertically arranged toward the conveying track 2, wherein the primary bending module 323 is connected to the output end of the first bending cylinder, and the secondary bending module 324 and the bending holding module 325 are connected to the second bending cylinder, so that when the first bending cylinder is started, it can drive the primary bending module 323 to move obliquely upward from below the conveying track 2, and then push the pin terminal from the bottom of the straight pin terminal to bend it into a 45° shape; the second bending cylinder drives the secondary bending module 324 and the bending holding module 325 to move forward close to the conveying track 2, thereby bending the pin terminal into 90°, and the same technical effect can also be achieved.

[0051] like Figure 2 、 Figure 7 and Figure 8As shown, after the connector base completes the bending of the pin terminal in the bending assembly 32, it is moved by the material transfer assembly 5 to the position of the cutting assembly 33 on the conveyor track 2 corresponding to the pin terminal. The cutting assembly 33 then removes the pin terminal's insertion hole and excess length during pin loading. The cutting assembly 33 of this embodiment includes a cutting drive module 331 and a cutter head 332 connected to the output end of the cutting drive module 331. The cutter head 332 is arranged perpendicular to the conveyor track 2, and a cutting notch is provided at the position of the cutter head 332 on the conveyor track 2 corresponding to the cutter head 332. When the pin terminal is to be cut, the bent connector base is moved by the material transfer assembly 5 to the cutting notch position. The cutter drive module then drives the cutter head 332 forward and inserts it into the cutting notch, thereby removing the pin terminal's waste material located at the cutting notch. In addition, a waste pipe 333 connected to the cutting port is provided on the back of the conveying track 2 of this embodiment, so that the waste dropped by the cutting of the pin terminal can be pushed by the cutting head 332 to fall into the waste pipe 333 for collection, which not only reduces costs but also prevents the waste from affecting the subsequent cutting of the pin terminal.

[0052] like Figure 7 As shown, in one embodiment, the cutting drive module 331 includes a first cutting cylinder arranged vertically toward the conveying opening 21 of the conveying track 2, and the cutting head 332 is connected to the output end of the first cutting cylinder, so that when the waste of the pin terminal is cut, the first cutting cylinder can push the cutting head 332 to move along the cutting opening to cut off the waste of the pin terminal.

[0053] like Figure 8 As shown, in another embodiment, the cutting drive module 331 is a second cutting cylinder and a lever connected to the output end of the second cutting cylinder, wherein a downward pressure cylinder is vertically arranged at the position corresponding to the cutting component 33 above the conveying track 2, and the bottom output end of the downward pressure cylinder is connected to a driving plate and the bottom of the driving plate is vertically connected to a cutting mold, wherein a cutting opening is formed on the cutting mold, and a cutting channel parallel to the conveying track 2 is provided at the bottom of the cutting mold. When cutting, the downward pressure cylinder drives the cutting module to be pressed down onto the conveying track 2, so that the top waste part of one row of bent pin terminals on the connector base can pass through the cutting channel and be exposed to the cutting opening; and the cutting drive module 331 of this embodiment is horizontally connected to the driving plate, and the cutting head 332 is connected to the other end of the lever and inserted into the cutting opening, so that when one end of the cutting cylinder drives the lever to move forward, the other end of the lever pushes the cutting head 332 to move along the cutting opening, thereby cutting off the waste material exposed in the cutting opening of the pin terminal.

[0054] like Figure 1 and Figure 9As shown, after the connector base completes the assembly, bending, and cutting of the pins, it is moved to the rear cover assembly mechanism 4 via the material transfer assembly 5. The rear cover assembly mechanism 4 then assembles the rear cover to secure the pin terminals. The rear cover assembly mechanism 4 in this embodiment includes a rear cover loading tray 41 and a transfer assembly assembly 42 connected to the output end of the rear cover loading tray 41. The rear cover loading tray 41 can load the rear cover, which is then moved to the conveyor track 2 by the transfer assembly 42 and assembled onto the connector base to secure the pin terminals.

[0055] Specifically, such as Figure 9 As shown, the transfer assembly component 42 of this embodiment includes an assembly frame 421, an assembly drive module 422 provided on the assembly frame 421, and an assembly cylinder 423 vertically mounted on the assembly drive module 422, wherein the bottom output end of the assembly cylinder 423 is connected to a starting chuck 424, so that when the back cover is assembled, the assembly drive module 422 can drive the assembly cylinder 423 and the starting chuck 424 to move to the output end of the back cover loading tray 41 to clamp the back cover, and then the assembly drive module 422 drives it to move to the position of the connector base corresponding to the back cover assembly process above the conveyor track 2, and then under the downward pressure of the assembly cylinder 423, the back cover on the starting chuck 424 is assembled to the connector base, thereby completing the assembly of the back cover. The assembly drive module 422 of this embodiment is a horizontally arranged cylinder moving mechanism that can realize the rapid movement of the starting chuck 424, facilitate the rapid installation of the back cover, and improve the assembly efficiency of the connector.

[0056] In addition, if Figure 9 As shown, the transfer assembly 42 of this embodiment is also provided with a stock removal assembly 43 on the side along the conveying direction of the conveyor track 2 for cutting off excessively long pin terminals. After the rear cover is assembled to the connector base, the excess portion of the excessively long pin terminals can be trimmed by the stock removal assembly 43, thereby ensuring the assembly accuracy of the connector. The stock removal assembly 43 of this embodiment has the same structure as the stock removal assembly 33 described above and will not be described again here.

[0057] like Figure 1 and Figure 10 As shown, in this embodiment, the pin terminal of the connector base is assembled and the back cover is assembled respectively. In order to ensure the assembly effect, after the connector is assembled, it can be sent to the detection mechanism 8 for power-on detection, which can effectively distinguish good products from defective products and remove defective products in time, thereby ensuring the quality of the connector. Figure 10As shown, the detection mechanism 8 of this embodiment includes two groups of detection components 81 arranged in sequence along the conveying track 2 and a defective product sorting component 82 arranged at the end of the conveying track 2. After the connector is fully assembled, it can be moved along the conveying track 2 and pass through the two groups of detection components 81 in sequence for two inspections, which can effectively improve the inspection accuracy; after the inspection is completed, the defective product sorting component 82 can be used to screen the defective products to avoid mixing with good products and affecting the batch quality of the connector.

[0058] Specifically, such as Figure 10 As shown, the detection assembly 81 of this embodiment includes a detection cylinder 811 and a detection fixture 812 connected to the output end of the detection cylinder 811. The detection fixture 812 is provided with a plurality of electrical test probes 813 corresponding to the pin terminals. When the connector moves along the conveyor track 2 to the position corresponding to the detection assembly 81, the detection cylinder 811 can push the detection fixture 812 to move, so that the connector pin terminals are plugged into the electrical test probes 813, thereby performing an electrical test on the connector. In this embodiment, by providing two sets of detection assemblies 81, the connector can be energized in all three rows of pin terminals in the first set of detection assemblies 81. If there is no short circuit, the connector is judged as a good product. If a short circuit is detected in the first set of detection assemblies 81, the connector moves to the second set of detection assemblies 81, which then conducts electrical tests on each row of pin terminals separately, thereby distinguishing the row of pin terminals with a short circuit, making it easier for staff to analyze the problem and make adjustments based on the test results.

[0059] In this embodiment, connectors detected as defective are sorted by a defective sorting component 82, wherein the defective sorting component 82 includes a sorting cylinder 821 arranged vertically toward the conveying track 2 and a sorting claw 822 connected to the output end of the sorting cylinder 821. A defective outlet is provided at the position of the sorting claw 822 of the conveying track 2 of this embodiment, and a blanking channel 823 is provided at the bottom of the sorting claw 822 corresponding to the defective outlet. When the assembled connector is determined to be defective, the sorting cylinder 821 can drive the sorting claw 822 to move to the front end of the conveying track 2, and then when the defective product moves to the defective product outlet position, the sorting cylinder 821 can drive the sorting claw 822 to retract, and then drive the defective connector to the defective product outlet and drop it into the collection area from the blanking channel 823, and the good connector moves to the end along the conveying track 2, thereby realizing the separation of good and defective connectors, and ensuring the overall quality of the connector.

[0060] In summary, this embodiment provides multiple sets of pin insertion mechanisms 3 arranged sequentially along the conveying direction of the conveying track 2, so that the pin terminals of each row of the connector can be assembled separately through each pin insertion mechanism 3. This can ensure pin insertion efficiency while improving the assembly accuracy of each row of pins, thereby improving the production skills of the connector. In addition, this embodiment provides a pin insertion mechanism 3 including a pin assembly 31, a bending assembly 32, and a cutting assembly 33, and provides a pushing assembly 6 at a position corresponding to the pin assembly 31 on the conveying track 2. When the pin terminals are assembled, the pushing assembly 6 can push the various pinholes of the connector base to align with the pin assembly 31 in sequence, so that each pin terminal can be sequentially inserted into the connector base under the action of the pin assembly 31, realizing individual insertion of the pin terminals. This can effectively improve the insertion accuracy of the pin terminals, avoid the problems of incorrect pins and wrong pins during the pin insertion process, and thus achieve efficient and accurate assembly of the connector. In addition, this embodiment sets a material transfer component 5 at the position corresponding to each pin insertion mechanism 3 on the transmission track 2, so that after the connector base completes the pin insertion in the pin insertion component 31, it can be moved to the bending component 32 driven by the material transfer component 5 to bend the entire row of pin terminals, and after the bending is completed, the material transfer component 5 transfers the material to the cutting component 33 to cut the pin position, thereby realizing the synchronous transfer of the connector base between the pin insertion component 31, the bending component 32 and the cutting component 33, simplifying the transfer steps and improving the overall assembly efficiency of the connector; and the material transfer component 5 can also realize the precise movement of the connector base by synchronously transferring the connector base, thereby improving the pin insertion accuracy.

[0061] The embodiments described above are only preferred implementations of the present invention and are not intended to limit the scope of protection of the present invention. Any non-substantial changes and modifications made by those skilled in the art on the basis of the invention fall within the scope of protection of the present invention.

Claims

1. A connector automatic pin assembly machine, characterized in that: The invention comprises a frame (1), a conveying track (2) arranged on the frame (1), and a pin insertion mechanism (3) and a back cover assembly mechanism (4) sequentially arranged along the conveying direction of the conveying track (2); the pin insertion mechanism (3) is provided with a plurality of groups and sequentially arranged along the conveying direction of the conveying track (2); each group of the pin insertion mechanism (3) respectively inserts pins into each row of pinholes of the connector base; each pin insertion mechanism (3) comprises a pin insertion assembly (31), a bending assembly (32) and a cutting assembly (33) sequentially arranged along the conveying direction of the conveying track (2); a material transfer assembly (5) for synchronously transferring the connector base between the pin insertion assembly (31), the bending assembly (32) and the cutting assembly (33) is provided at a position on the conveying track (2) corresponding to each group of the pin insertion mechanism (3); a pushing assembly (6) for pushing the connector base to move and aligning its pinholes with the pin insertion assembly (31) is provided at a position on the conveying track (2) corresponding to each group of the pin insertion assembly (31); The starting end of the conveying track (2) is also connected to a base loading tray (7) for loading the connector base, and the end of the conveying track (2) is connected to a detection mechanism (8) for detecting the assembled connector.

2. The automatic connector pin assembly machine according to claim 1, characterized in that: The transmission track (2) is provided with a transmission channel adapted to the outer shape of the connector base inside, and a transmission opening (21) communicating with the transmission channel is provided on the surface of the plug-in mechanism corresponding to the transmission channel. When the connector base enters the transmission channel, the pin portion of the connector base passes through the transmission opening (21).

3. The automatic connector pin assembly machine according to claim 2, characterized in that: The material transfer assembly (5) comprises a dual-axis module (51) arranged on the transfer track (2) and a synchronous shift plate (52) connected to the output end of the dual-axis module (51); the synchronous shift plate (52) is arranged in front of the transfer opening (21); and a bayonet (53) for clamping the connector base pin portion is provided at the bottom of the synchronous shift plate (52) at each station corresponding to the pin insertion mechanism (3).

4. The automatic connector pin assembly machine according to claim 2, characterized in that: The pin assembly (31) comprises a feeding slide (311) provided at the front side of the transmission track (2) and a pin module (34) installed at the end of the feeding slide (311); the front section of the feeding slide (311) is tilted and connected to a material rack (312) for supplying pin terminals; the rear section of the feeding slide (311) is parallel to the transmission track (2) and a transport motor (313) is installed on the top; the pin module (34) is installed at the rear section end of the feeding slide (311) and is perpendicular to the end face of the transmission track (2); the output end of the transport motor (313) is installed with a transmission gear disc (314) for transporting a single pin terminal to the pin module (34) for insertion.

5. The automatic connector pin assembly machine according to claim 4, characterized in that: The pin module (34) includes a pin base (341), a pin cylinder (342) mounted on the pin base (341) and arranged vertically toward the transmission track (2), and a guide plate (343) connected to the output end of the pin cylinder (342) and movably plugged into the pin base (341). A movable block (344) is arranged in the pin base (341). A guide channel (345) for driving the movable block (344) to move in a vertical direction is provided on the surface of the guide plate (343). The movable block (344) is movably engaged in the guide channel (345). A pin chuck (346) corresponding to the end of the feeding slideway (311) is installed on the movable block (344).

6. The automatic connector pin assembly machine according to claim 1, characterized in that: The bending assembly (32) comprises a bending bracket (321), a bending drive module (322) fixedly mounted on the bending bracket (321) and arranged toward the transmission track (2), and a primary bending module (323), a secondary bending module (324), and a bending holding module (325) connected to the output end of the bending drive module (322) and arranged in sequence along the transmission direction of the transmission track (2). The front bending end surfaces of the primary bending module (323), the secondary bending module (324), and the bending holding module (325) are all provided with bending grooves (326) adapted to the respective pin terminals. The primary bending module (323) is used to push the pin terminal from the bottom of the pin terminal to bend it into a 45° shape. The secondary bending module (324) and the bending holding module (325) are used to bend the pin terminal into a 90° shape and hold it.

7. The automatic connector pin assembly machine according to claim 1, characterized in that: The cutting assembly (33) comprises a cutting drive module (331) and a cutting head (332) connected to the output end of the cutting drive module (331); a cutting notch is provided on the conveying track (2) at a position corresponding to the cutting head (332); the cutting head (332) is movably inserted into the cutting notch; and a waste pipe (333) connected to the cutting notch is also provided on the conveying track (2).

8. The automatic connector pin assembly machine according to claim 1, characterized in that: The pushing assembly (6) comprises a screw module (61) arranged parallel to the transmission track (2) and a lifting cylinder (62) connected to the screw module (61); the output end of the lifting cylinder (62) is connected to a clamping plate (63) for clamping a connector base.

9. The automatic connector pin assembly machine according to claim 1, characterized in that: The rear cover assembly mechanism (4) comprises a rear cover loading tray (41) and a transfer assembly component (42) for transferring and assembling the bottom cover loaded on the rear cover loading tray (41) to the connector base. The transfer assembly component (42) comprises an assembly frame (421), an assembly drive module (422) provided on the assembly frame (421), and an assembly cylinder (423) vertically mounted on the assembly drive module (422). The output end of the assembly cylinder (423) is connected to a starting chuck (424) for transferring and assembling the rear cover. The transfer assembly component (42) is also provided with a residual material cutting component (43) for cutting off excessively long pin terminals on the side along the transmission direction of the transmission track (2).

10. The automatic connector pin assembly machine according to claim 1, characterized in that: The detection mechanism (8) includes two groups of detection components (81) arranged in sequence along the conveying track (2) and a defective product sorting component (82) arranged at the end of the conveying track (2); the detection component (81) includes a detection cylinder (811) and a detection fixture (812) connected to the output end of the detection cylinder (811); the detection fixture (812) is provided with a plurality of electrical detection probes (813) corresponding to the pin terminals; The defective product sorting assembly (82) comprises a sorting cylinder (821) and a sorting claw (822) connected to the output end of the sorting cylinder (821); a defective product outlet is provided at a position of the conveying track (2) corresponding to the sorting claw (822); and a drop channel (823) is provided at a position of the bottom of the sorting claw (822) corresponding to the defective product outlet.

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