Pin inserting mechanism

Abstract

The invention belongs to the technical field of motor processing equipment, and particularly relates to a pin mechanism which comprises a rack, a pin input device, a combination device and a pin transfer device.The rack is used for lifting a mounting position and providing the mounting position; the contact pin input device is fixedly installed on the rack, a plurality of rotary separation devices are arranged on the contact pin input device, the output ends of the rotary separation devices are arranged downwards, and continuous pin chains rotate through the rotary separation devices to twist off connecting points; the combination device is fixedly mounted on the rack, and the combination device and the contact pin input device are oppositely arranged; the contact pin transfer device is arranged on the rack in a sliding mode and can move between the rotary separation device and the combination device, and the production efficiency is effectively improved through the structure.

Description

Technical Field

[0001] The invention belongs to the technical field of motor processing equipment, and in particular relates to a pin insertion mechanism. Background Art

[0002] In the field of motor stator manufacturing, the PIN needles (insert pins) of the stator frame serve as the core carrier for connecting the winding wires with the external circuit. The assembly quality and efficiency of the stator frame directly affect the performance and manufacturing cost of the motor. In the traditional production process, the PIN needles are usually fixed in the preset holes of the stator frame by inserting them one by one. The specific process includes: manual or semi-automatic equipment inserts the single PIN needles into the frame holes one by one, and then fixes them by riveting, welding or injection molding. Although this process has certain feasibility in early small-batch production, as the motor industry develops towards high-efficiency, high-precision, and large-scale automated production, its technical limitations are becoming increasingly prominent. In the existing technology, the pins are grabbed by automated equipment and then inserted into the stator frame in an orderly manner to complete the PIN pin assembly of the stator frame. However, the use of the pin insertion equipment in the existing technology to assemble the PIN pins of the stator frame has the problem of one-by-one insertion operation mode, which leads to long production cycles, bloated movements, and affects the efficiency of pin insertion. Summary of the Invention

[0003] The object of the present invention is to provide a pin insertion mechanism, aiming to solve the technical problem of low pin insertion efficiency in the prior art.

[0004] To achieve the above-mentioned purpose, an embodiment of the present invention provides a pin insertion mechanism, comprising a frame, a pin input device, a combination device and a pin transfer device, wherein:

[0005] The rack is used to elevate the installation location and provide a mounting position;

[0006] The pin input device is fixedly mounted on the frame. A plurality of rotating separation devices are provided on the pin input device. The output end of the rotating separation device is downwardly arranged. The continuous needle chain is rotated through the rotating separation device to twist off the connection point.

[0007] The assembly device is fixedly mounted on the frame, and the assembly device is arranged opposite to the pin input device;

[0008] The pin transfer device is slidably arranged on the frame, and the pin transfer device can move between the rotating separation device and the combining device.

[0009] Preferably, the pin input device also includes an input mounting frame, a driving device and a fixed-distance moving device. The mounting frame is fixedly mounted on the frame, and the fixed-distance moving device and the rotating separation device are both fixedly mounted on the mounting frame. The fixed-distance moving device is located above the rotating separation device, and the continuous needle chain passes through the fixed-distance moving device and the rotating separation device in sequence. A moving rack is provided on the mounting frame, and the moving rack is slidably set on the mounting frame. The rotating end of the driving device and the rotating end of each rotating separation device are both engaged with the moving rack.

[0010] Preferably, the fixed-distance moving device includes a lifting device and a positioning device for fixing the needle chain. The lifting device is fixedly installed on the mounting frame, and the positioning device is set on the mounting frame for sliding up and down. The positioning device is located below the lifting device, and the lifting end of the lifting device is connected to the positioning device. The needle chain passes through the lifting device and the positioning device in sequence.

[0011] Preferably, the positioning device includes a first clamping cylinder and a movable block, the movable block is slidably set on the mounting frame, the lifting end of the lifting device is connected to the movable block, and the movable block is provided with a first channel for the needle chain to pass through. The first clamping cylinder is installed on the side of the movable block, and the telescopic end of the first clamping cylinder can penetrate the movable block and move into the first channel to squeeze and fix the needle chain.

[0012] Preferably, the rotary separation device includes a second clamping cylinder, a mounting block and a twisting device. The mounting block is installed on the mounting frame, the twisting device is arranged under the mounting block, and a second channel is provided on the mounting block. The needle chain passes through the central position of the mounting block and the twisting device in sequence. The second clamping cylinder is installed on the side of the mounting block, and the telescopic end of the second clamping cylinder can penetrate the mounting block and move into the second channel to squeeze and fix the needle chain.

[0013] Preferably, the pin transfer device includes a transverse moving device, a longitudinal moving device and a plurality of telescopic carrier devices. The transverse moving device is fixedly mounted on the frame, and the pin input device and the combination device are both across the transverse moving device. The longitudinal moving device is fixedly mounted on the moving end of the transverse moving device. The telescopic carrier devices are arranged at intervals on the moving end of the longitudinal moving device, and a plurality of accommodating holes are provided on the lifting end of each telescopic carrier device.

[0014] Preferably, the telescopic carrier device includes an outer shell, a return spring, a receiving block and a plurality of ejectors. The outer shell is fixedly mounted on the moving end of the longitudinal moving device, and a slide groove opening upward is provided on the outer shell. The return spring and the ejector are both arranged in the slide groove. The receiving block is provided with a plurality of receiving holes passing through the upper and lower parts. The receiving block is slidably arranged in the slide groove. The top end of the return spring abuts against the bottom end of the receiving block, and the top end of each ejector is respectively inserted into each receiving hole.

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

[0016] Preferably, the skeleton lifting device includes a mounting column, a limit plate, a moving block, a reset spring and a fixed plate. The mounting column is installed on the crossbeam frame, the limit plate is installed on the top of the mounting column, and one end of the limit plate is extended toward the direction of the pin input device. The moving block is set on the side of the mounting column for sliding up and down. The two ends of the reset spring are respectively connected to the limit plate and the moving block. The fixed plate is installed on the side of the moving block, and one end of the fixed plate is extended toward the direction of the pin input device. The fixed plate is located below the extrusion end of the extrusion device.

[0017] Preferably, the fixing plate is provided with an air-avoiding hole and a plurality of positioning protrusions, each positioning protrusion is provided on the top plane of the fixing plate, and each positioning protrusion is provided around the air-avoiding hole.

[0018] The above one or more technical solutions in the pin insertion mechanism provided by the embodiment of the present invention have at least one of the following technical effects:

[0019] The pin mechanism of the present invention is composed of a frame, a pin input device, a combination device and a pin transfer device, wherein the pin input device is used to introduce and split the pins on the needle chain, the combination device is used to transfer the split pins to the stator frame, and the pin transfer device is used to realize the connection and linkage between the two stations of the pin input device and the combination device, and a fixed-distance moving device and a rotating separation device are provided on the pin input device. The fixed-distance moving device pulls the needle chain of a fixed length at one end to move each time, and the rotating separation device rotates and twists off the part of each fixed-distance movement, and then drops it to the moving end of the pin transfer device. The moving end of the pin transfer device drives the received pins to move to the combination device, and each pin is inserted into the stator frame through the pressing of the combination device. After the telescopic carrier device on the pin transfer device receives the pin, the pin is completely hidden in the telescopic carrier device, and the pin is stretched. The retractable carrier device is provided with a liftable accommodating block, and the pin falls into the accommodating hole on the accommodating block, and a top pin is provided in the accommodating hole for supporting the pin that falls into the accommodating hole. Under the downward pressure of the assembly device, the retractable carrier device moves down, and the pin is exposed and assembled on the stator frame. During assembly, the pin input device, the assembly device and the pin transfer device are all installed on the frame, and the pin input device and the pin transfer device are arranged relative to 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. When 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, and after the reception is completed, it moves to the assembly device work station, and the assembly device presses down the accommodating block on the telescopic carrier device to expose the pin, and assemble it to the stator frame. The above structure improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 This is a rendering of the pin insertion mechanism provided in an embodiment of the present invention.

[0022] Figure 2 for Figure 1 A partial enlarged view of middle A.

[0023] Figure 3 for Figure 1 A partial enlarged view of B.

[0024] Figure 4 A front view of the pin input device of the pin insertion mechanism provided in an embodiment of the present invention.

[0025] Figure 5 A cross-sectional view of a pin input device of a pin insertion mechanism provided in an embodiment of the present invention.

[0026] Figure 6 This is a rendering of the telescopic carrier device of the pin insertion mechanism provided in an embodiment of the present invention.

[0027] Figure 7 A cross-sectional view of a telescopic carrier device of a pin insertion mechanism provided by an embodiment of the present invention.

[0028] Figure 8 This is a rendering of the skeleton lifting device of the pin insertion mechanism provided in an embodiment of the present invention.

[0029] Figure 9 This is a rendering of the PIN needle in the present invention.

[0030] Figure 10 This is a diagram showing the combined effect of the PIN needle and stator frame in the present invention.

[0031] Among them, the reference numerals in the figures are:

[0032] 10 - rack 20 - pin input device 21 - mounting frame

[0033] 22 - driving device 23 - fixed distance moving device 24 - rotating separation device

[0034] 30 - Combination device 31 - Skeleton lifting device 32 - Extrusion device

[0035] 33 - beam frame 40 - pin transfer device 41 - horizontal movement device

[0036] 42 - longitudinal moving device 43 - telescopic carrier device 211 - moving rack

[0037] 231 - Lifting device 232 - Positioning device 241 - Second pressing cylinder

[0038] 242 - Mounting block 243 - Twist-off device 311 - Mounting column

[0039] 312 - limit plate 313 - moving block 314 - reset spring

[0040] 315 - fixed plate 431 - outer shell 432 - return spring

[0041] 433 - Accommodation block 434 - Ejector pin 2321 - First pressing cylinder

[0042] 2322—movable block 3151—avoidance hole 3152—positioning protrusion

[0043] 4331—Accommodation hole. DETAILED DESCRIPTION

[0044] The following describes the embodiments of the present invention in detail. Figures 1 to 8 , wherein the same or similar reference numerals throughout represent 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 are intended to be used to explain the embodiments of the present invention, but should not be understood as limiting the present invention.

[0045] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0046] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0047] In the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0048] In one embodiment of the present invention, Figures 1-2 and Figures 4-5 As shown, a pin insertion mechanism is provided, comprising a frame 10, a pin input device 20, a combination device 30 and a pin transfer device 40, wherein:

[0049] The rack 10 is used to elevate the installation position and provide a mounting location;

[0050] The pin input device 20 is fixedly mounted on the frame 10. A plurality of rotating separation devices 24 are provided on the pin input device 20. The output end of the rotating separation device 24 is downwardly disposed. The continuous needle chain is twisted off at the connection point by the rotating separation device 24. The rotating separation device 24 rotates and separates two adjacently connected pins on the needle chain, thereby realizing separate output of the pins.

[0051] The assembly device 30 is fixedly mounted on the frame 10 and is arranged opposite to the pin input device 20. The assembly device 30 is used to press down the stator frame portion so that the pins are assembled to the stator frame from below.

[0052] The pin transfer device 40 is slidably disposed on the frame 10 and can move between the rotating separation device 24 and the assembly device 30 to transfer the separated pins to the processing position to complete the assembly.

[0053] The pin insertion mechanism of the present invention is composed of a frame 10, a pin input device 20, a combination device 30 and a pin transfer device 40, wherein the pin input device 20 is used to introduce and split the pins on the needle chain, the combination device 30 is used to transfer the split pins to the stator frame, and the pin transfer device 40 is used to realize the connection and linkage between the two stations of the pin input device 20 and the combination device 30, and the pin input device 20 is provided with a fixed-distance moving device 23 and a rotating separation device 24. The fixed-distance moving device 23 pulls a fixed length of the needle chain at one end to move each time, and the rotating separation device 24 rotates and twists the part of each fixed-distance movement to break it, and then drops it to the pin transfer device 40. At the moving end, the moving end of the pin transfer device 40 drives the received pins to move to the assembly device 30. Through the pressing of the assembly device 30, each pin is inserted into the stator frame. After the pins are received by the telescopic carrier device 43 on the pin transfer device 40, the pins are completely hidden in the telescopic carrier device 43. A liftable receiving block 433 is provided on the telescopic carrier device 43. The pins fall into the receiving holes 4331 on the receiving block 433, and the receiving holes 4331 are provided with ejector pins 434 for supporting the pins falling into the receiving holes 4331. When the assembly device 30 is pressed down, the receiving block 433 moves downward, the pins are exposed, and assembled on the stator frame (such as Figure 10 ), during assembly, the pin input device 20, the assembly device 30 and the pin transfer device 40 are all installed on the frame 10, the pin input device 20 and the pin transfer device 40 are arranged opposite to each other, and 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. When 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 pin (such as Figure 9), after receiving, it moves to the workstation of the assembly device 30, and the assembly device 30 presses down the accommodating block 433 on the telescopic carrier device 43 to expose the pins and assemble them onto the stator frame. The above structure can improve the production efficiency.

[0054] In another embodiment of the present invention, Figures 1-2 and Figures 4-5 As shown, the pin input device 20 also includes an input mounting frame 21, a driving device 22 and a fixed-distance moving device 23. The mounting frame 21 spans one end of the moving track of the pin transfer device 40 to ensure that the pin transfer device 40 can move into position and accurately receive the separated individual pins. The mounting frame 21 is fixedly mounted on the frame 10. The fixed-distance moving device 23 and the rotary separation device 24 are both fixedly mounted on the mounting frame 21. The fixed-distance moving device 23 is located above the rotary separation device 24. The fixed-distance moving device 23 moves a fixed length of needle chain into the rotary separation device 24 to ensure that the rotary separation device 24 can accurately separate individual pins, and the continuous needle chain passes through the fixed-distance moving device 23 and the rotary separation device in turn. Device 24, after the fixed-distance moving device 23 pulls the needle chain to move a certain distance, the rotating separation device 24 fixes the needle chain and rotates to separate the single pin at the end of the needle chain from the connected pin twisting connection point, and at the same time the fixed-distance moving device 23 retreats, repeats this action step to achieve continuous pin output, a moving rack 211 is provided on the mounting frame 21, and the moving rack 211 and the mounting frame 21 are slidingly connected, and the rotating end of the driving device 22 and the rotating end of each rotating separation device 24 are meshed with the moving rack 211, and the driving device 22 drives the moving rack 211 to move and then synchronously drives the rotating end of each rotating separation device 24 to rotate, completing the twisting and separation of the single pin connection point on the needle chain.

[0055] In another embodiment of the present invention, Figure 1 and Figures 4-5 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 the needle chain is to move to avoid slipping during the movement. The lifting device 231 is fixedly installed on the mounting frame 21, and the positioning device 232 is slid up and down on the mounting frame 21, and the positioning device 232 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 turn, and enters the positioning device 232 through the guide input of the lifting device 231, to avoid the situation where the positioning device 232 is stuck when it directly enters.

[0056] In another embodiment of the present invention, Figure 1 and Figures 4-5 As shown, the positioning device 232 includes a first pressing cylinder 2321 and a movable block 2322. The movable block 2322 is used to follow the lifting end of the lifting device 231 to perform a fixed distance lifting and lowering movement. The first pressing cylinder 2321 is used to press 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 set 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 and move within a fixed stroke range to realize the fixed distance transmission of the needle chain. A first channel for the needle chain to pass through is provided on the movable block 2322, and the first channel is adjacent to the movable block 2322. A side setting is provided to facilitate the first clamping cylinder 2321 to position the needle chain. The first clamping cylinder 2321 is installed on the side of the movable block 2322, and the telescopic end of the first clamping cylinder 2321 can penetrate the movable block 2322 and move into the first channel to squeeze and fix the needle chain. The telescopic end of the first clamping cylinder 2321 and the side wall of the first channel clamp the needle chain between the two. During the movement of the movable block 2322, the needle chain and the movable block 2322 are always kept relatively fixed to achieve synchronous movement between the needle chain and the movable block 2322. After the movement is completed, the first clamping cylinder 2321 releases the needle chain, and the movable block 2322 returns to its position. The action is repeated to complete the fixed-distance movement of the needle chain.

[0057] In another embodiment of the present invention, Figures 1-2 and Figures 4-5As shown, the rotating separation device 24 includes a second pressing cylinder 241, a mounting block 242 and a twisting device 243. The second pressing cylinder 241 is used to position the needle chain when the fixed-distance moving device 23 retreats, and the twisting device 243 is used to rotate the connection point between the two connected pins on the separation needle chain to complete the splitting. The mounting block 242 is used to position the second pressing cylinder 241 and the twisting device 243 for assembly. The mounting block 242 is installed on the mounting frame 21, and the twisting device 243 is arranged below the mounting block 242. A second channel is provided on the mounting block 242, and the first channel and the second accessible opening edges are surrounded by closed curved surfaces, which play a certain guiding role in the input of the needle chain, ensuring that the needle chain can smoothly enter the first channel and the second channel. The twisting device 243 can be a square cross-section setting of the middle groove to realize the rotation of the twisting device 243 while driving part of the needle chain to rotate synchronously, thereby separating the pins. The needle chain passes through the central position of the mounting block 242 and the twisting device 243 in turn, and can position the needle chain before twisting it off to avoid displacement of the needle chain during the twisting action, which affects the twisting effect. The second clamping cylinder 241 is installed on the side of the mounting block 242, and the telescopic end of the second clamping cylinder 241 can penetrate the mounting block 242 and move to the second channel to squeeze and fix the needle chain. The telescopic end of the second clamping cylinder 241 and the inner side wall of the second channel clamp the needle chain between the two, and the relative fixation between the needle chain and the mounting block 242 is achieved before the twisting device 243 rotates.

[0058] In another embodiment of the present invention, Figure 1 and Figure 3 As shown, the pin transfer device 40 includes a transverse moving device 41, a longitudinal moving device 42 and a plurality of telescopic carrier devices 43. The transverse moving device 41 and the longitudinal moving device 42 realize the movement and adjustment of any position in the plane. The transverse moving device 41 is fixedly mounted on the frame 10, and the pin input device 20 and the combination device 30 are both across the transverse moving device 41. The moving end of the transverse moving device 41 moves back and forth between the pin input device 20 and the combination device 30 to realize the association between the two stations of the pin input device 20 and the combination device 30. The longitudinal moving device 42 is fixedly mounted on the frame 10. On the moving end of the transverse moving device 41, the longitudinal moving device 42 is used to adjust the precise alignment relationship with the pin input device 20 and the combination device 30 to ensure that after reaching the corresponding position, accurate positioning can be achieved. The telescopic carrier devices 43 are 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. A number of accommodating holes 4331 are provided on the lifting end of each telescopic carrier device 43 for receiving PIN pins.

[0059] In another embodiment of the present invention, Figure 1 、 Figure 3 and Figures 6-7 As shown, the telescopic carrier device 43 includes an outer shell 431, a return spring 432, a receiving block 433 and a plurality of ejector pins 434. The ejector pin 434 is used to eject the PIN pin located in the receiving hole 4331. The outer shell 431 is fixedly installed on the moving end of the longitudinal moving device 42. Each outer shell 431 is arranged longitudinally and driven by the moving end of the longitudinal moving device 42. A sliding groove with an upward opening is provided on the outer shell 431. A protrusion can be provided near the bottom of the outer side surface of the receiving block 433. A limit block can also be provided in the corresponding sliding groove to limit the further upward movement of the protrusion. The maximum travel of the receiving block 433 is limited by the distance between the limit block and the bottom of the sliding groove. At the same time, it also prevents the receiving block 433 from falling off. The return spring 432 and the ejector pin 434 The pins 434 are all arranged 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 requirements. The accommodating block 433 is provided with a number of accommodating holes 4331 that pass through the upper and lower parts to accommodate the PIN pins, and the accommodating holes 4331 are respectively arranged in alignment with each ejector pin 434. The accommodating block 433 is slidably arranged in the slide groove, and the accommodating block 433 slides up and down to squeeze the return spring 432. The top of the return spring 432 abuts against the bottom of the accommodating block 433. When there is no external force, the return spring 432 pushes the accommodating block 433 to return to its original position. The top of each ejector pin 434 is respectively inserted into each accommodating hole 4331, which is used to locate the position of the PIN pin in the telescopic carrier device 43 and will not be affected by the movement of the accommodating block 433.

[0060] In another embodiment of the present invention, Figure 1 and Figure 8 As shown, the assembly device 30 includes several skeleton lifting devices 31, extrusion devices 32 and crossbeams 33. The skeleton lifting devices 31 are used to load the stator skeleton, and the extrusion devices 32 are used to press the stator skeleton downward and then squeeze the accommodating block 433 to complete the pin insertion operation of the stator skeleton. The crossbeams 33 are fixedly installed on the frame 10. Each skeleton lifting device 31 can be slidably adjusted and installed on the frame 10. The extrusion devices 32 are installed on the crossbeams 33. The lifting end of the extrusion device 32 is installed downward on the top of the crossbeam 33, and each skeleton lifting device 31 is arranged side by side. Setting, each skeleton lifting device 31 is respectively set in one-to-one correspondence with each telescopic carrier device 43, and the moving end of the pin transfer device 40 can be moved to the bottom of the lifting end of the skeleton lifting device 31, so that each stator skeleton on the skeleton lifting device 31 is conveniently corresponding to each PIN needle. The multiple extrusion ends of the extrusion device 32 are respectively located above the lifting end of each skeleton lifting device 31. The stator skeleton on the skeleton lifting device 31 is pressed down by the extrusion end of the extrusion device 32, so that the stator skeleton on the skeleton lifting device 31 is close to the PIN needle until the PIN needle is pressed into the installation position of the stator skeleton.

[0061] In another embodiment of the present invention, Figure 1 and Figure 8 As shown, the skeleton lifting device 31 includes a mounting column 311, a limit plate 312, a moving block 313, a reset spring 314 and a fixed plate 315. The mounting column 311 is mounted on the crossbeam frame 33, and the limit plate 312 is mounted on the top of the mounting column 311 to limit the maximum ascending stroke. One end of the limit plate 312 is extended toward the direction of the pin input device 20 to determine the installation direction of the moving block 313. The moving block 313 is slid up and down on the side of the mounting column 311 to enable the stator skeleton loaded thereon to move up and down along a predetermined trajectory. The two ends of the reset spring 314 are respectively It is connected to the limit plate 312 and the moving block 313 to reset the moving block 313 that has moved downward. The fixed plate 315 is installed on the side of the moving block 313, and one end of the fixed plate 315 is extended toward the pin input device 20 to extend the installation position of the stator frame to better align with the telescopic carrier device 43. The fixed plate 315 is located below the extrusion end of the extrusion device 32. The extrusion device 32 squeezes the fixed plate 315 downward, driving the moving block 313 downward. When resetting, the reset spring 314 pulls the moving block 313 upward, driving the fixed plate 315 upward, and the cycle is repeated to complete the pin insertion action.

[0062] In another embodiment of the present invention, Figure 1 and Figure 8 As shown, the fixing plate 315 is provided with an air-avoidance hole 3151 and a plurality of positioning protrusions 3152. The air-avoidance hole 3151 is used for the PIN needle to be inserted into the stator frame, and the positioning protrusions 3152 are used to limit the installation of the stator frame on the fixing plate 315. Each positioning protrusion 3152 is arranged on the top plane of the fixing plate 315, and each positioning protrusion 3152 is arranged around the air-avoidance hole 3151. The stator frame is clamped between each positioning protrusion 3152, and the PIN needle passes through the air-avoidance hole 3151 and is inserted on the stator frame.

[0063] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A pin insertion mechanism, characterized in that: include A rack, the rack being used to elevate the installation position and provide an installation location; A pin input device, the pin input device is fixedly mounted on the frame, and is provided with a plurality of rotating separation devices, the output end of the rotating separation device is arranged downward, and the continuous needle chain is twisted off the connection point by rotating the rotating separation device; A combination device, the combination device is fixedly mounted on the frame, and the combination device is arranged opposite to the pin input device; A pin transfer device is slidably arranged on the frame, and the pin transfer device can move between the rotating separation device and the combining device.

2. The pin insertion mechanism according to claim 1, characterized in that: The pin input device also includes an input mounting frame, a driving device and a fixed-distance moving device. The mounting frame is fixedly mounted on the frame. The fixed-distance moving device and the rotating separation device are both fixedly mounted on the mounting frame. The fixed-distance moving device is located above the rotating separation device, and a continuous needle chain passes through the fixed-distance moving device and the rotating separation device in sequence. A moving rack is provided on the mounting frame, and the moving rack is slidably set on the mounting frame. The rotating end of the driving device and the rotating end of each of the rotating separation devices are engaged with the moving rack.

3. The pin insertion mechanism according to claim 2, characterized in that: The fixed-distance moving device includes a lifting device and a positioning device for fixing the needle chain. The lifting device is fixedly installed on the mounting frame, and the positioning device is slidably arranged on the mounting frame up and down. The positioning device is located below the lifting device, and the lifting end of the lifting device is connected to the positioning device. The needle chain passes through the lifting device and the positioning device in sequence.

4. The pin insertion mechanism according to claim 3, characterized in that: The positioning device includes a first clamping cylinder and a movable block. The movable block is slidably set on the mounting frame. The lifting end of the lifting device is connected to the movable block. The movable block is provided with a first channel for the needle chain to pass through. The first clamping cylinder is installed on the side of the movable block, and the telescopic end of the first clamping cylinder can penetrate the movable block and move into the first channel to squeeze and fix the needle chain.

5. The pin insertion mechanism according to claim 2, characterized in that: The rotating separation device includes a second clamping cylinder, a mounting block and a twisting device. The mounting block is mounted on the mounting frame, and the twisting device is arranged below the mounting block. A second channel is provided on the mounting block, and the needle chain passes through the central position of the mounting block and the twisting device in sequence. The second clamping cylinder is mounted on the side of the mounting block, and the telescopic end of the second clamping cylinder can penetrate the mounting block and move into the second channel to squeeze and fix the needle chain.

6. The pin insertion mechanism according to claim 1, characterized in that: The pin transfer device includes a transverse moving device, a longitudinal moving device and a plurality of telescopic carrier devices. The transverse moving device is fixedly mounted on the frame, and the pin input device and the combination device both span above the transverse moving device. The longitudinal moving device is fixedly mounted on the moving end of the transverse moving device. The telescopic carrier devices are arranged at intervals on the moving end of the longitudinal moving device, and a plurality of accommodating holes are provided on the lifting end of each telescopic carrier device.

7. The pin insertion mechanism according to claim 6, characterized in that: The telescopic carrier device includes an outer shell, a return spring, a accommodating block and a plurality of ejectors. The outer shell is fixedly mounted on the moving end of the longitudinal moving device, and the outer shell is provided with a slide groove opening upward, the return spring and the ejector are both arranged in the slide groove, and the accommodating block is provided with a plurality of accommodating holes passing through the upper and lower parts, the accommodating block is slidably arranged in the slide groove, the top end of the return spring abuts against the bottom end of the accommodating block, and the top end of each ejector is respectively inserted into each accommodating hole.

8. The pin insertion mechanism according to claim 1, characterized in that: The combined device includes several skeleton lifting devices, extrusion devices and crossbeam frames. The crossbeam frames are fixedly installed on the frame. Each skeleton lifting device can be slidably adjusted and installed on the frame. The extrusion device is installed on the crossbeam frame, and each skeleton lifting device is arranged side by side. The movable end of the pin transfer device can be moved to the bottom of the lifting end of the skeleton lifting device. The multiple extrusion ends of the extrusion device are respectively located above the lifting end of each skeleton lifting device.

9. The pin insertion mechanism according to claim 8, characterized in that: The skeleton lifting device includes a mounting column, a limit plate, a moving block, a reset spring and a fixed plate. The mounting column is mounted on the crossbeam frame, the limit plate is mounted on the top of the mounting column, and one end of the limit plate is extended toward the direction of the pin input device. The moving block is slid up and down on the side of the mounting column. The two ends of the reset spring are respectively connected to the limit plate and the moving block. The fixed plate is mounted on the side of the moving block, and one end of the fixed plate is extended toward the direction of the pin input device. The fixed plate is located below the extrusion end of the extrusion device.

10. The pin insertion mechanism according to claim 9, characterized in that: The fixing plate is provided with a clearance hole and a plurality of positioning protrusions, each of the positioning protrusions is provided on the top plane of the fixing plate, and each of the positioning protrusions is provided around the clearance hole.

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