Pin input device and pin mechanism

Abstract

The utility model belongs to motor processing equipment technical field especially relates to a needle input device and needle mechanism, wherein needle input device includes mounting bracket, drive arrangement, moving rack, a plurality of fixed distance moving device and a plurality of rotary separating devices, drive arrangement, fixed distance moving device and rotary separating device all install on mounting bracket, fixed distance moving device is located the top of rotary separating device, and fixed distance moving device and rotary separating device all are provided with the passage for needle chain to pass through and are penetrated, moving rack slidingly is set below each rotary separating device, and the rotary end of each rotary separating device and drive arrangement is all engaged with moving rack, and the production efficiency is effectively improved through above -mentioned structure.

Description

Technical Field

[0001] This utility model belongs to the technical field of motor processing equipment, and in particular relates to a pin input device and a pin insertion mechanism. Background Technology

[0002] In the field of motor stator manufacturing, the PIN pins (inserts) of the stator frame serve as the core carrier connecting the winding conductors to the external circuit. Their assembly quality and efficiency directly affect the motor's performance and manufacturing cost. In traditional production processes, PIN pins are typically fixed to pre-set holes in the stator frame one by one. The specific process involves manually or semi-automatically inserting individual PIN pins into the frame holes sequentially, followed by fixing through riveting, welding, or injection molding. Although this process was feasible for early small-batch production, its technical limitations have become increasingly apparent as the motor industry moves towards high-efficiency, high-precision, and large-scale automated production. Current technologies use automated equipment to pick up the inserts and insert them into the stator frame in an orderly manner to complete the PIN pin assembly. However, using existing insertion equipment for PIN pin assembly on the stator frame results in a long production cycle, cumbersome operations, and reduced insertion efficiency due to the one-by-one insertion operation mode. Utility Model Content

[0003] The purpose of this invention is to provide a pin input device and a pin insertion mechanism, which aims to solve the technical problem of low pin insertion efficiency in the prior art.

[0004] To achieve the above objectives, this utility model provides a pin input device, including a mounting frame, a driving device, a movable rack, several fixed-distance moving devices, and several rotating separating devices. The driving device, the fixed-distance moving devices, and the rotating separating devices are all mounted on the mounting frame. The fixed-distance moving devices are located above the rotating separating devices, and both the fixed-distance moving devices and the rotating separating devices have channels through which the pin chain passes. The movable rack is slidably disposed below each of the rotating separating devices, and the rotating ends of each of the rotating separating devices and the driving device are engaged with the movable rack.

[0005] Preferably, the rotary separation device includes a first pressing cylinder, a mounting block, and a rotating component. The mounting block is fixedly mounted on the mounting frame, the rotating component is disposed below the mounting block, and the rotating component is meshed with the movable rack. The channel passes through the mounting block and the rotating component. The first pressing cylinder is mounted on the side of the mounting block, and the telescopic end of the first pressing cylinder can penetrate the mounting block and extend into the channel to press and fix the needle chain against the inner wall of the channel.

[0006] Preferably, the channel input end openings on the mounting block and the rotating member are funnel-shaped, opening in the direction opposite to the needle chain conveying.

[0007] Preferably, the fixed-distance moving device includes a lifting device and a positioning device. The lifting device is fixedly installed on the mounting frame, and the positioning device is slidably disposed on the mounting frame, with the positioning device located below the lifting device. The lifting end of the lifting device is connected to the positioning device, and the channel passes through the positioning device.

[0008] Preferably, the positioning device includes a second pressing cylinder and a movable block. The movable block is slidably disposed on the mounting frame. The lifting end of the lifting device is connected to the movable block. The channel is disposed through the movable block. The second pressing cylinder is installed on the side of the movable block, and the telescopic end of the second pressing cylinder can penetrate the movable block and extend into the channel to press and fix the needle chain against the inner wall of the channel.

[0009] Preferably, the channel input end opening on the movable block is funnel-shaped, opening in the opposite direction to the needle chain conveying.

[0010] Preferably, the channel has a rectangular cross-section, and the two opposite inner sides of the channel are respectively close to the surface of the needle chain.

[0011] The pin input device provided in this embodiment of the present invention has at least one of the following technical effects:

[0012] The pin input device of this utility model is assembled from a mounting frame, a drive unit, a moving rack, several fixed-distance moving devices, and several rotating separation devices. The fixed-distance moving devices move the pin chain a fixed distance each time, and the rotating separation devices rotate individual pins at the end of the pin chain, causing two connected pins to be twisted and separated. During assembly, the drive unit, fixed-distance moving devices, and rotating separation devices are all mounted on the mounting frame. Each fixed-distance moving device and each rotating separation device is arranged horizontally at intervals. Simultaneously, each fixed-distance moving device is vertically aligned with each rotating separation device, ensuring that the two channels for the pin chain to pass through on both devices are vertically aligned to guarantee smooth pin chain passage. The moving rack is slidably mounted on each of the parallel rotating separation devices. Below the separating device, a movable rack can move back and forth along the arrangement path of each rotating separating device, while ensuring that the movable rack is engaged with the rotating end of each rotating separating device. When assembling the drive device, the drive device is arranged adjacent to the rotating separating devices arranged at the ends, and the rotating end of the drive device is simultaneously engaged with the movable rack. During operation, the fixed-distance movable device pulls the needle chain to move and transport it a fixed distance into the rotating separating device. The rotating end of the drive device rotates, driving the movable rack to move back and forth. In turn, the movable rack drives the rotating ends on multiple rotating separating devices to rotate synchronously, breaking and separating the needle chain entering the rotating separating device and outputting them one by one. Through the above structural settings, the automatic transmission, splitting, and output of the needle chain can be realized, effectively improving the overall efficiency of the needle insertion.

[0013] Another technical solution of this application is a pin insertion mechanism, including a frame, a pin transfer device, a combination device for assembling a stator frame and pins, and the aforementioned pin input device. The pin input device, the combination device, and the pin transfer device are all disposed on the frame, and the two ends of the pin transfer device extend to the bottom of the combination device and the pin input device, respectively.

[0014] Preferably, the pin transfer device includes a lateral moving device, a longitudinal moving device, and a plurality of telescopic carrier devices. The lateral moving device is fixedly installed on the frame, and the pin input device and the combined device both span across the lateral moving device. The longitudinal moving device is fixedly installed on the moving end of the lateral moving device. Each of the telescopic carrier devices is arranged at intervals on the moving end of the longitudinal moving device, and each of the telescopic carrier devices has a plurality of receiving holes on its lifting end.

[0015] Preferably, the combined device includes several skeleton lifting devices, extrusion devices, and crossbeams. The crossbeams are fixedly installed on the frame. Each skeleton lifting device is slidably and adjustablely installed on the frame. The extrusion devices are installed on the crossbeams, and the skeleton lifting devices are arranged side by side. The movable end of the pin transfer device can be moved to below the lifting end of the skeleton lifting device. The multiple extrusion ends of the extrusion device are respectively located above the lifting ends of each skeleton lifting device.

[0016] The pin insertion mechanism provided in this embodiment of the present invention has at least one of the following technical effects:

[0017] The pin insertion mechanism of this utility model is composed of a frame, a pin input device, a combination device, and a pin transfer device. The pin input device is used to introduce and separate pins from the pin chain. The combination device is used to transfer the separated pins to the stator frame. The pin transfer device is used to connect and link the two workstations of the pin input device and the combination device. The pin input device is equipped with a fixed-distance moving device and a rotating separation device. The fixed-distance moving device pulls a fixed length of the pin chain at each step, and the rotating separation device rotates and twists off the portion moved at each step, causing it to fall into the moving end of the pin transfer device. The moving end of the pin transfer device moves the received pins to the combination device. Through the pressing of the combination device, each pin is inserted into the stator frame. After receiving the pins, the telescopic carrier device on the pin transfer device completely hides the pins within it. The telescopic carrier device is equipped with a liftable receiving block. The pin falls into the receiving hole on the receiving block, and a pin is provided in the receiving hole to support the pin. When the telescopic carrier device is pressed down by the assembly device, the receiving block moves down, the pin is exposed, and assembled onto the stator frame. During assembly, the pin input device, the assembly device, and the pin transfer device are all installed on the frame. The pin input device and the pin transfer device are arranged opposite each other. The two ends of the moving track of the pin transfer device extend to the bottom of the pin input device and the assembly device, respectively. In use, the telescopic carrier device of the pin transfer device moves to the bottom of the rotating separation device of the pin input device to receive the separated single pin. After receiving, it moves to the assembly device station. The assembly device presses down the receiving block on the telescopic carrier device, exposing the pin, and assembling it onto the stator frame. The above structure improves production efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A front view of the pin input device provided in an embodiment of this utility model.

[0020] Figure 2 A cross-sectional view of the pin input device provided in an embodiment of this utility model.

[0021] Figure 3 This is a rendering of the pin insertion mechanism provided in an embodiment of the present utility model.

[0022] Figure 4 for Figure 3 A magnified view of part A in the image.

[0023] Figure 5 for Figure 3 A magnified view of part B in the image.

[0024] Figure 6 A rendering of the telescopic carrier device of the pin insertion mechanism provided in an embodiment of this utility model.

[0025] Figure 7 A cross-sectional view of the telescopic carrier device of the pin mechanism provided in an embodiment of this utility model.

[0026] Figure 8 A rendering of the skeleton lifting device of the pin insertion mechanism provided in this embodiment of the utility model.

[0027] Figure 9 This is a schematic diagram of the PIN pin in this utility model.

[0028] Figure 10 This is a rendering of the combination of PIN pins and stator skeleton in this utility model.

[0029] The following are the labeling elements in the figure:

[0030] 10—Rack 20—Pin Input Device 21—Mounting Bracket

[0031] 22—Drive device; 23—Fixed distance moving device; 24—Rotary separation device

[0032] 30—Combined device; 31—Frame lifting device; 32—Extrusion device

[0033] 33—Crossbeam frame; 40—Pin transfer device; 41—Transverse movement device

[0034] 42—Longitudinal moving device; 43—Telescopic vehicle device; 211—Moving rack and pinion.

[0035] 231—Lifting device; 232—Positioning device; 241—First clamping cylinder

[0036] 242—Mounting block; 243—Rotating component; 311—Mounting column

[0037] 312—Limit plate; 313—Moving block; 314—Reset spring

[0038] 315—Fixed plate; 431—Outer shell; 432—Reset spring

[0039] 433—Accommodating block; 434—Ejector pin; 2321—Second clamping cylinder

[0040] 2322—Modible block; 3151—Void hole; 3152—Positioning protrusion

[0041] 4331—Receiving hole. Detailed Implementation

[0042] The embodiments of this utility model are described in detail below, with examples of the embodiments shown in the appendix. Figures 1-8 As shown, the same or similar reference numerals throughout denote the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain embodiments of the present invention, and should not be construed as limiting the present invention.

[0043] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0044] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0045] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0046] In one embodiment of this utility model, such as Figures 1-4 As shown, a pin insertion mechanism is provided, including a frame 10, a pin input device 20, a combination device 30, and a pin transfer device 40, wherein:

[0047] The rack 10 is used to elevate the installation position and provide an installation location;

[0048] The pin input device 20 is fixedly installed on the frame 10. The pin input device 20 is provided with several rotating separation devices 24. The output end of the rotating separation device 24 is set downward. The continuous pin chain is twisted off the connection point by rotating the rotating separation device 24. The rotating separation device 24 rotates to separate two adjacent pins on the pin chain, so as to realize the individual output of the pin.

[0049] The assembly device 30 is fixedly installed on the frame 10, and the assembly device 30 is arranged opposite to the pin input device 20. The assembly device 30 is used to press down the stator frame part so that the pin is assembled onto the stator frame from below.

[0050] The pin transfer device 40 is slidably mounted on the frame 10. The pin transfer device 40 can move between the rotary separation device 24 and the assembly device 30 to transfer the separated pins to the processing position to complete the assembly.

[0051] The pin insertion mechanism of this utility model is composed of a frame 10, a pin input device 20, a combination device 30, and a pin transfer device 40. The pin input device 20 is used to input and separate pins from the pin chain. The combination device 30 is used to transfer the separated pins to the stator frame. The pin transfer device 40 is used to connect and link the two stations of the pin input device 20 and the combination device 30. The pin input device 20 is equipped with a fixed-distance moving device 23 and a rotating separating device 24. The fixed-distance moving device 23 pulls a fixed length of the pin chain at each movement, and the rotating separating device 24 rotates and twists off the portion that has been moved at each distance, causing it to fall to the pin transfer device 40. In the moving end of the 0, the moving end of the pin transfer device 40 drives the receiving pin to move into the assembly device 30. Through the pressing of the assembly device 30, each pin is inserted into the stator frame. After receiving the pin, the telescopic carrier device 43 on the pin transfer device 40 completely hides the pin in the telescopic carrier device 43. The telescopic carrier device 43 is provided with a liftable receiving block 433. The pin falls into the receiving hole 4331 on the receiving block 433, and a top pin 434 is provided in the receiving hole 4331 to support the pin falling into the receiving hole 4331. Under the pressure of the assembly device 30, the receiving block 433 moves down, the pin is exposed, and assembled onto the stator frame (e.g., Figure 10 During assembly, the pin input device 20, the assembly device 30, and the pin transfer device 40 are all mounted on the frame 10. The pin input device 20 and the pin transfer device 40 are arranged opposite each other. The two ends of the moving track of the pin transfer device 40 extend to the bottom of the pin input device 20 and the assembly device 30, respectively. In use, the telescopic carrier device 43 of the pin transfer device 40 moves to the bottom of the rotating separation device 24 of the pin input device 20 to receive the separated single pins (such as...). Figure 9 After receiving the pin, it moves to the assembly unit 30 station. The assembly unit 30 presses down the receiving block 433 on the telescopic carrier device 43 to expose the pin and assemble it onto the stator frame. The above structure improves production efficiency.

[0052] In another embodiment of this utility model, such as Figures 1-4As shown, the pin input device 20 also includes an input mounting bracket 21, a drive device 22, and a fixed-distance moving device 23. The mounting bracket 21 spans one end of the moving track of the pin transfer device 40, ensuring that the pin transfer device 40 can move into position and accurately receive the separated individual pins. The mounting bracket 21 is fixedly mounted on the frame 10. The fixed-distance moving device 23 and the rotating separation device 24 are both fixedly mounted on the mounting bracket 21. The fixed-distance moving device 23 is located above the rotating separation device 24. The fixed-distance moving device 23 moves a fixed length of pin chain into the rotating separation device 24, ensuring that the rotating separation device 24 can accurately separate individual pins, and that the continuous pin chain passes through the fixed-distance moving device 23 and the rotating separation device in sequence. Device 24: After the fixed-distance moving device 23 pulls the needle chain a certain distance, the rotating separation device 24 fixes the needle chain and rotates to separate the end of the needle chain from the connected pins at the twisted connection point. At the same time, the fixed-distance moving device 23 retracts and repeats this action step to achieve continuous pin output. A movable rack 211 is provided on the mounting frame 21. The movable rack 211 and the mounting frame 21 are slidably connected. The rotating end of the driving device 22 and the rotating end of each rotating separation device 24 are meshed with the movable rack 211. The driving device 22 drives the movable rack 211 to move, thereby synchronously driving the rotating end of each rotating separation device 24 to rotate, completing the twisted separation of the connection point of the individual pins on the needle chain.

[0053] The pin input device 20 of this utility model is assembled from a mounting frame 21, a drive device 22, a moving rack 211, several fixed-distance moving devices 23, and several rotating separation devices 24. The fixed-distance moving devices 23 move the pin chain a fixed distance each time, and the rotating separation devices 24 rotate individual pins at the end of the pin chain, causing two connected pins to be twisted and separated. During assembly, the drive device 22, the fixed-distance moving devices 23, and the rotating separation devices 24 are all mounted on the mounting frame 21. The fixed-distance moving devices 23 and the rotating separation devices 24 are arranged horizontally at intervals. Simultaneously, each fixed-distance moving device 23 is vertically aligned with each rotating separation device 24, ensuring that the two channels for the pin chain to pass through on both devices are vertically aligned to guarantee smooth passage of the pin chain. The moving rack 211 is slidably mounted on each of the parallel rotating separation devices 24. Below, the movable rack 211 can move back and forth along the arrangement path of each rotating separation device 24, while ensuring that the movable rack 211 is meshed with the rotating end of each rotating separation device 24. When assembling the drive device 22, the drive device 22 is arranged adjacent to the rotating separation devices 24 arranged at the ends, and the rotating end of the drive device 22 is simultaneously meshed with the movable rack 211. During operation, the fixed-distance moving device 23 pulls the needle chain to move and transport it at a fixed distance, realizing the positional movement of a single PIN needle into the rotating separation device 24. The rotating end of the drive device 22 rotates, driving the movable rack 211 to move back and forth. Then, the movable rack 211 drives the rotating ends on multiple rotating separation devices 24 to rotate synchronously, breaking and separating the needle chain entering the rotating separation device 24 and outputting them one by one. Through the above structural settings, the automatic transmission, splitting, and output of the needle chain can be realized, effectively improving the overall efficiency of the needle insertion.

[0054] In another embodiment of this utility model, such as Figures 1-3 As shown, the fixed-distance moving device 23 includes a lifting device 231 and a positioning device 232 for fixing the needle chain. The lifting device 231 drives the needle chain to move at a fixed distance. The positioning device 232 is used to position the needle chain when it needs to move to avoid slippage during the movement. The lifting device 231 is fixedly installed on the mounting frame 21. The positioning device 232 is slidably mounted on the mounting frame 21 and is located below the lifting device 231. The lifting end of the lifting device 231 is connected to the positioning device 232. The lifting device 231 drives the positioning device 232 to move up and down, and the moving distance of the positioning device 232 is fixed. The needle chain passes through the lifting device 231 and the positioning device 232 in sequence. It enters the positioning device 232 through the guide input of the lifting device 231 to avoid jamming when it directly enters the positioning device 232.

[0055] In another embodiment of this utility model, such as Figures 1-3 As shown, the positioning device 232 includes a second clamping cylinder 2321 and a movable block 2322. The movable block 2322 is used to move up and down at a fixed distance following the lifting end of the lifting device 231. The second clamping cylinder 2321 is used to clamp the needle chain on the movable block 2322, so that the needle chain and the movable block 2322 move synchronously. The movable block 2322 is slidably mounted on the mounting frame 21. The lifting end of the lifting device 231 is connected to the movable block 2322. The lifting device 231 drives the movable block 2322 to move back and forth within a fixed stroke range to realize the fixed-distance transmission of the needle chain. The movable block 2322 is provided with a channel for the needle chain to pass through, and the channel is located near one side of the movable block 2322 to facilitate the positioning of the needle chain by the second clamping cylinder 2321. The channel has a rectangular cross-section, and the input end of the channel opens in a funnel shape in the opposite direction to the needle chain feeding, which guides the input of the needle chain. The second clamping cylinder 2321 is installed on the side of the movable block 2322, and the telescopic end of the second clamping cylinder 2321 can be inserted into the movable block 2322 and moved into the channel to squeeze and fix the needle chain. The telescopic end of the second clamping cylinder 2321 and the side wall of the channel hold the needle chain between them. During the movement of the movable block 2322, the needle chain and the movable block 2322 are kept relatively fixed, realizing the synchronous movement between the needle chain and the movable block 2322. After the movement is completed, the second clamping cylinder 2321 releases the needle chain, the movable block 2322 returns to its original position, and the action is repeated to complete the fixed-distance movement of the needle chain.

[0056] In another embodiment of this utility model, such as Figures 1-4As shown, the rotary separation device 24 includes a first clamping cylinder 241, a mounting block 242, and a rotating component 243. The first clamping cylinder 241 is used to position the needle chain when the fixed-distance moving device 23 retracts. The rotating component 243 is used to rotate the connection point between two connected pins on the separation needle chain to complete the separation. The mounting block 242 is used to position and assemble the first clamping cylinder 241 and the rotating component 243. The mounting block 242 is mounted on the mounting frame 21, and the rotating component 243 is located below the mounting block 242. The mounting block 242 is provided with a channel, and the opening edges of the channel are all surrounded by closed curved surfaces, opening in the opposite direction to the needle chain conveying in a funnel shape, which plays a certain guiding role in the input of the needle chain and ensures that the needle chain can be... The needle chain smoothly enters the channel, which has a rectangular cross-section so that the rotating component 243 rotates while driving part of the needle chain to rotate synchronously, thereby separating the needle. The needle chain passes through the center of the mounting block 242 and the rotating component 243 in sequence, which can position the needle chain before twisting and breakage, preventing displacement of the needle chain during the twisting and breakage action and affecting the twisting and breakage effect. The first clamping cylinder 241 is installed on the side of the mounting block 242, and the telescopic end of the first clamping cylinder 241 can be inserted into the mounting block 242 and moved into the channel to squeeze and fix the needle chain. The telescopic end of the first clamping cylinder 241 and the inner side wall of the channel clamp the needle chain between them, achieving relative fixation between the needle chain and the mounting block 242 before the rotating component 243 rotates.

[0057] In another embodiment of this utility model, such as Figure 3 and Figure 5 As shown, the pin transfer device 40 includes a lateral moving device 41, a longitudinal moving device 42, and several telescopic carrier devices 43. The lateral moving device 41 and the longitudinal moving device 42 can be adjusted to any position on the plane. The lateral moving device 41 is fixedly installed on the frame 10, and the pin input device 20 and the combination device 30 both span across the lateral moving device 41. The moving end of the lateral moving device 41 moves back and forth between the pin input device 20 and the combination device 30, realizing the connection between the two workstations of the pin input device 20 and the combination device 30. The longitudinal moving device 42 is fixedly installed on the frame 10. On the moving end of the lateral moving device 41, the longitudinal moving device 42 is used to adjust the precise alignment relationship between the pin input device 20 and the combination device 30 to ensure that the positioning can be accurately achieved after reaching the corresponding position. Each telescopic carrier device 43 is arranged at intervals on the moving end of the longitudinal moving device 42. Each telescopic carrier device 43 corresponds to a rotating separation device 24 or a skeleton lifting device 31 on the combination device 30 to realize the pin insertion operation of a stator skeleton. Each telescopic carrier device 43 has several receiving holes 4331 on its lifting end for receiving PIN pins.

[0058] In another embodiment of this utility model, such as Figure 3 and Figures 5-7 As shown, the telescopic carrier device 43 includes a housing 431, a return spring 432, a receiving block 433, and several ejector pins 434. The ejector pins 434 are used to eject the pins located in the receiving holes 4331. The housing 431 is fixedly installed on the moving end of the longitudinal moving device 42. The housings 431 are arranged longitudinally and driven by the moving end of the longitudinal moving device 42. The housing 431 is provided with an upward-opening groove. A protrusion can be provided on the outer side of the receiving block 433 near the bottom. A limiting block can also be provided in the corresponding groove to restrict the protrusion from moving upward. The maximum stroke that the receiving block 433 can move is limited by the distance between the limiting block and the bottom of the groove, and the receiving block 433 is also prevented from falling off. The return spring 432 and the ejector pins 434 are used to eject the pins located in the receiving holes 4331 ... All pins 434 are set in the slide groove, and the return spring 432 can be sleeved on the outside of the ejector pin 434, which facilitates the assembly of the two while minimizing the assembly space requirement. The receiving block 433 is provided with several vertically penetrating receiving holes 4331 for receiving pins, and the receiving holes 4331 are respectively aligned with each ejector pin 434. The receiving block 433 is slidably set in the slide groove. The receiving block 433 slides up and down to compress the return spring 432. The top of the return spring 432 abuts against the bottom of the receiving block 433. When there is no external force, the return spring 432 pushes the receiving block 433 back to its original position. The top of each ejector pin 434 is inserted into the receiving hole 4331 respectively to position the pin in the telescopic carrier device 43, and is not affected by the movement of the receiving block 433.

[0059] In another embodiment of this utility model, such as Figure 3 and Figure 8 As shown, the combined device 30 includes several frame lifting devices 31, pressing devices 32, and crossbeams 33. The frame lifting devices 31 are used to load the stator frame, and the pressing devices 32 are used to press down the stator frame and then press the receiving block 433 to complete the stator frame insertion operation. The crossbeams 33 are fixedly installed on the frame 10. Each frame lifting device 31 is slidably and adjustablely installed on the frame 10. The pressing devices 32 are installed on the crossbeams 33, with the lifting end of the pressing device 32 facing downwards on the top of the crossbeams 33, and the frame lifting devices 31 are arranged side by side. The frame lifting device 31 is configured to correspond one-to-one with each telescopic carrier device 43. The moving end of the pin transfer device 40 can be moved to below the lifting end of the frame lifting device 31, so that each stator frame on the frame lifting device 31 corresponds one-to-one with each PIN pin. The multiple pressing ends of the pressing device 32 are located above the lifting end of each frame lifting device 31. By pressing down the pressing ends of the pressing device 32, the stator frame on the frame lifting device 31 is brought closer to the PIN pin until the PIN pin is pressed into the mounting position of the stator frame.

[0060] In another embodiment of this utility model, such as Figure 3 and Figure 8 As shown, the frame lifting device 31 includes a mounting column 311, a limiting plate 312, a moving block 313, a return spring 314, and a fixing plate 315. The mounting column 311 is mounted on the crossbeam frame 33. The limiting plate 312 is mounted on the top of the mounting column 311 to limit the maximum upward stroke. One end of the limiting plate 312 extends towards the pin input device 20, determining the installation orientation of the moving block 313. The moving block 313 slides up and down on the side of the mounting column 311, enabling the stator frame loaded on it to move up and down along a predetermined trajectory. The two ends of the return spring 314 are respectively... Connected to the limiting plate 312 and the moving block 313, the lowered moving block 313 is reset. The fixing plate 315 is installed on the side of the moving block 313, and one end of the fixing plate 315 extends towards the pin input device 20, extending the installation position of the stator frame and better aligning with the telescopic carrier device 43. The fixing plate 315 is located below the pressing end of the pressing device 32. The pressing device 32 presses the fixing plate 315 down, causing the moving block 313 to move down. When resetting, the reset spring 314 pulls the moving block 313 up, causing the fixing plate 315 to move up, and the pin insertion action is repeated in a cycle.

[0061] In another embodiment of this utility model, such as Figure 3 and Figure 8 As shown, the fixing plate 315 is provided with a clearance hole 3151 and a number of positioning protrusions 3152. The clearance hole 3151 is used for inserting the PIN pin into the stator frame. The positioning protrusions 3152 are used to restrict the installation of the stator frame on the fixing plate 315. Each positioning protrusion 3152 is provided on the top plane of the fixing plate 315 and surrounds the clearance hole 3151. The stator frame is snapped between each positioning protrusion 3152. The PIN pin passes through the clearance hole 3151 and is inserted into the stator frame.

[0062] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pin input device, characterized in that: The device includes a mounting frame, a drive unit, a movable rack, several fixed-distance moving devices, and several rotating separating devices. The drive unit, the fixed-distance moving devices, and the rotating separating devices are all mounted on the mounting frame. The fixed-distance moving devices are located above the rotating separating devices, and both the fixed-distance moving devices and the rotating separating devices have channels through which the needle chain passes. The movable rack is slidably disposed below each of the rotating separating devices, and the rotating ends of each of the rotating separating devices and the drive unit are engaged with the movable rack.

2. The pin input device according to claim 1, characterized in that: The rotary separation device includes a first pressing cylinder, a mounting block, and a rotating component. The mounting block is fixedly mounted on the mounting frame, and the rotating component is disposed below the mounting block and meshes with the movable rack. The channel passes through the mounting block and the rotating component. The first pressing cylinder is mounted on the side of the mounting block, and the telescopic end of the first pressing cylinder can penetrate the mounting block and extend into the channel to press and fix the needle chain against the inner wall of the channel.

3. The pin input device according to claim 2, characterized in that: The channel input end openings on the mounting block and the rotating component are funnel-shaped, opening in the opposite direction to the needle chain conveying.

4. The pin input device according to claim 1, characterized in that: The fixed-distance moving device includes a lifting device and a positioning device. The lifting device is fixedly installed on the mounting frame, and the positioning device is slidably disposed on the mounting frame, with the positioning device located below the lifting device. The lifting end of the lifting device is connected to the positioning device, and the channel passes through the positioning device.

5. The pin input device according to claim 4, characterized in that: The positioning device includes a second pressing cylinder and a movable block. The movable block is slidably disposed on the mounting frame. The lifting end of the lifting device is connected to the movable block. The channel is disposed through the movable block. The second pressing cylinder is installed on the side of the movable block, and the telescopic end of the second pressing cylinder can penetrate the movable block and extend into the channel to press and fix the needle chain against the inner wall of the channel.

6. The pin input device according to claim 5, characterized in that: The channel input end opening on the movable block is funnel-shaped, opening in the opposite direction to the needle chain conveying.

7. The pin input device according to any one of claims 1 to 6, characterized in that: The channel has a rectangular cross-section, and the two opposite inner sides of the channel are respectively set close to the surface of the needle chain.

8. A pin insertion mechanism, comprising the pin input device according to any one of claims 1 to 7, characterized in that: It also includes a frame, a pin transfer device, and a combination device for assembling the stator frame and the pins. The pin input device, the combination device, and the pin transfer device are all disposed on the frame, and the two ends of the pin transfer device extend to the bottom of the combination device and the pin input device, respectively.

9. The pin insertion mechanism according to claim 8, characterized in that: The pin transfer device includes a lateral moving device, a longitudinal moving device, and several telescopic carrier devices. The lateral moving device is fixedly installed on the frame, and the pin input device and the combined device both span across the lateral moving device. The longitudinal moving device is fixedly installed on the moving end of the lateral moving device. Each of the telescopic carrier devices is arranged at intervals on the moving end of the longitudinal moving device, and each of the telescopic carrier devices has several receiving holes on its lifting end.

10. The pin insertion mechanism according to claim 8, characterized in that: The combined device includes several skeleton lifting devices, extrusion devices, and crossbeams. The crossbeams are fixedly installed on the machine frame. Each skeleton lifting device is slidably and adjustablely installed on the machine frame. The extrusion devices are installed on the crossbeams, and the skeleton lifting devices are arranged side by side. The movable end of the pin transfer device can be moved to below the lifting end of the skeleton lifting device. The multiple extrusion ends of the extrusion device are respectively located above the lifting ends of each skeleton lifting device.

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