Twist needle automatic crimping equipment

Abstract

The invention relates to automatic cable needle crimping equipment. A rear sleeve feeding device, a limiting device, a needle head feeding device, a limiting device, a crimping device, a detection device and a discharging device are arranged on the periphery of a crimping rotary table around the circumference of the crimping rotary table; working heads are arranged on the crimping rotary table in a one-to-one correspondence manner around the circumference corresponding to the devices on the periphery, and sleeves are connected to the working heads in a penetrating manner and used for being correspondingly connected with sleeves of rear sleeves in an inserted manner. The rear sleeve feeding device, the limiting device, the needle feeding device, the limiting device, the pressing connection device, the detection device and the discharging device are adopted for sequentially completing rear sleeve feeding, rear sleeve positioning, needle feeding, needle positioning, rear sleeve needle pressing connection, pressing connection detection and classified discharging, the overall structure is simple, and inserting connection and pressing connection operation of the rear sleeve and the twist needle head is automatically completed; the crimping quality is stable, and the automation degree is high.

Description

Technical Field

[0001] The invention relates to electric connector production equipment, in particular to a twist pin automatic crimping equipment. Background Art

[0002] With the widespread application of electrical connectors in all walks of life, the requirements for electrical connectors of various specifications and models are becoming higher and higher. The electrical connection performance of electrical connectors depends to a large extent on the connection between internal pins, sockets and wires. Most of the existing patents for electrical connectors are aimed at improving the connection performance of pins and sockets. For the connection between the back sleeve of the pin and the needle, manual operation is conventionally adopted. The back sleeve of the pin and the needle are manually plugged in. After plugging in, they are manually sent into semi-automatic or manual closing tooling for closing and crimping. The production operation is cumbersome, time-consuming and labor-intensive, and the crimping performance cannot be guaranteed, which directly affects the performance and quality of subsequent electrical connectors. Summary of the invention

[0003] The invention provides a twist needle automatic crimping device with compact structure, convenient crimping operation, stable quality and high automation.

[0004] The technical solution adopted by the present invention is: an automatic crimping device for twist needles, characterized in that: it includes a rear sleeve feeding device, a needle head feeding device, a crimping device, a detection device, a feeding device and a crimping turntable, the rear sleeve feeding device, the needle head feeding device, the crimping device, the detection device, and the feeding device are arranged around the circumference of the crimping turntable on the outer circumference; more than five working heads are arranged around the circumference of the crimping turntable, the working heads include a head seat, a threading shaft, a sleeve and a tail sleeve, the head seat is arranged on the crimping turntable, the threading shaft is threaded along the radial direction of the crimping turntable on the head seat, the threading shaft is connected to the sleeve for plugging the rear sleeve outwardly, and the threading shaft is connected to the sleeve for plugging the rear sleeve inwardly The rear sleeve is connected with the tail sleeve; the rear sleeve feeding device includes a rear sleeve vibration plate, a rear sleeve feeding track, a rear sleeve feeding head, a rear sleeve feeding cylinder, a rear sleeve pushing cylinder and a rear sleeve pushing head. The rear sleeve vibration plate feeds the rear sleeve to connect the rear end of the rear sleeve feeding track. The rear sleeve feeding head is arranged at the front end of the rear sleeve feeding track. A feeding trough is arranged on the rear sleeve feeding head corresponding to the rear sleeve conveying direction in the rear sleeve feeding track. The lower part of the rear sleeve feeding head is lifted and supported by the rear sleeve feeding cylinder to be in a state of facing outwardly corresponding to the rear sleeve feeding track or inwardly corresponding to the sleeve. The rear sleeve pushing cylinder is arranged on the radial outside of the rear sleeve feeding head around the crimping turntable, and the rear sleeve pushing cylinder extends toward the center of the crimping turntable The rear sleeve pushes the head after shrinking and connecting; the needle loading device includes a needle vibration disk, a needle loading rack, a needle lower clamp, a needle lower clamp lifting guide rail, a needle upper clamp, a needle upper clamp lifting guide rail, a needle pushing cylinder and a needle pushing head. The needle loading rack is provided with a needle lower clamp lifting guide rail and a needle upper clamp lifting guide rail. The needle lower clamp lifting guide rail and the needle upper clamp lifting guide rail are respectively telescopically connected to the needle upper clamp and the needle lower clamp downward. The upper and lower clamping grooves are respectively arranged on the relative clamping surfaces of the needle upper clamp and the needle lower clamp. The needle vibration disk is connected to the outer end of the needle lower clamp to send out the needle in the corresponding lower clamping groove. The needle push cylinder is arranged on the radial outer side of the chuck on the needle around the crimping turntable, and the needle push cylinder is telescopically connected toward the center of the crimping turntable to correspondingly push the needle push head clamped in the upper and lower clamping grooves; the crimping device comprises a crimping feed guide rail, a crimping operation cylinder and a crimping sleeve pliers, the crimping sleeve pliers corresponding to the working head sleeve center is arranged outside the crimping turntable, the jaw center of the crimping sleeve pliers is in the same straight line with the sleeve center, and the two clamp legs of the crimping sleeve pliers are respectively connected to the two crimping operation cylinders, and the two crimping operation cylinders are arranged on the crimping feed guide rail along the radial direction of the crimping turntable; the detection device is a CCD visual detection head;The unloading device includes an unloading rack, an unloading feeding guide rail, an unloading clamping bidirectional cylinder and two clamping claws. The unloading rack is arranged outside the crimping turntable, and the unloading feeding guide rail is arranged on the unloading rack. The unloading clamping bidirectional cylinder is arranged on the unloading feeding guide rail and is in a radial feeding state along the crimping turntable. The two clamping claws connected to the unloading clamping bidirectional cylinder are in a state of opening back to back or clamping the rear sleeve inside the sleeve and the outer wall of the rear sleeve after the needle crimping is completed. The unloading device is also provided with a collecting device below the retracted position of the clamping claws. The collecting device includes a collecting guide rail, a defective collection tank and a finished product collection tank. The collecting guide rail is perpendicular to the feeding direction of the unloading feeding guide rail to drive the defective collection tank and the finished product collection tank arranged on the collecting guide rail. ;

[0005] Furthermore, the tail sleeve is a nylon sleeve or a rubber sleeve.

[0006] Furthermore, a damping block is arranged below the tail sleeve, the damping block is in contact with the tail sleeve, and the damping block is arranged on the head seat.

[0007] Furthermore, the outer wall of the front end of the sleeve is axially provided with more than two open grooves evenly distributed around the circumference, and a plurality of hoop grooves are axially provided on the outer wall of the sleeve within the length range of the open grooves, and hoop rings are provided in the hoop grooves.

[0008] Furthermore, the CCD visual inspection head of the inspection device is installed on the inspection rotating frame and rotates around the sleeve.

[0009] Furthermore, a driving sleeve is arranged above the tail sleeve, the driving sleeve is crimped onto the tail sleeve, and a rotating shaft of the driving sleeve is externally connected to a driving motor.

[0010] Furthermore, a limiting device is arranged between the rear sleeve loading device and the needle loading device, and between the needle loading device and the crimping device. The limiting device includes a limiting bracket, a limiting cylinder and a limiting push head. The limiting bracket is connected to a limiting cylinder that telescopes and feeds toward the center of the crimping turntable. The limiting cylinder is connected to the limiting push head toward the center of the crimping turntable. Working heads are arranged corresponding to the rear sleeve loading device, the limiting device, the needle loading device, the detection device and the unloading device.

[0011] Furthermore, a material detection probe corresponding to the front end of the sleeve is arranged on the working head corresponding to the limiting device.

[0012] Furthermore, a vacancy detection mechanism is arranged between the unloading device and the rear sleeve loading device, and a working head is arranged corresponding to the vacancy detection mechanism, and a material detection probe corresponding to the front end of the sleeve is arranged on the working head.

[0013] Furthermore, the rear cover vibration disk and the needle vibration disk are provided with the rear cover and the needle for direction identification and delivery of vibration.

[0014] When this equipment is in operation, the back sleeve and the needle are placed in the back sleeve vibration plate and the needle head vibration plate respectively. The crimping turntable is started to rotate to drive the working head to rotate. The two vibration plates vibrate to identify the back sleeve and the needle head and send them out in the required direction. The back sleeve is sent to the back sleeve loading head through the back sleeve feeding track and placed in the loading trough. Driven by the back sleeve loading cylinder, the back sleeve loading head rises to the horizontal height corresponding to the corresponding sleeve of the back sleeve. The back sleeve pushing cylinder is started and the back sleeve pushing head pushes the back sleeve in the loading trough toward the sleeve feeding of the working head corresponding to the back sleeve loading device station. The back sleeve is pushed into the sleeve, and the opening groove of the sleeve clamps the back sleeve under the action of the hoop. After the back sleeve is loaded on the corresponding working head of the sleeve, the back sleeve is loaded; after the loading of the back sleeve is completed, the working head rotates with the crimping turntable to the corresponding station position of the subsequent limit device in the rotation direction, and the material detection probe is used to detect whether there is a back sleeve in front of the sleeve at this station. The sleeve is inserted, so as to determine whether to carry out subsequent needle, crimping and unloading operations; the material detection probe detects that the working head of the station has a rear sleeve inserted, and the control limit cylinder is pushed by the limit to push the rear sleeve toward the sleeve to meet the fixed-length insertion in the sleeve; after the fixed-length insertion and limit of the sleeve is completed, the workbench rotates with the crimping turntable to the corresponding needle feeding device, and the needle is sent to the lower clamping groove on the needle lower clamp through the needle vibration disk. The position of the needle lower clamp is controlled by the needle lower clamp lifting guide rail, and the needle is pressed down in the lower clamp groove through the clamping groove on the needle upper clamp under the control of the needle lower clamp lifting guide rail, and is lifted as a whole to the corresponding According to the direction of the working head of the needle loading device station, the needle pushing cylinder is started and the needle pushing head pushes the needle in the upper and lower clamping grooves into the rear sleeve plugged into the outer opening of the sleeve to complete the needle loading of the needle corresponding to the working head; the working head that has completed the needle loading rotates with the crimping turntable to the corresponding station position of the subsequent limit device in the rotation direction, and refers to the previous limit device principle to detect whether the needle is inserted and the fixed-length plug-in of the needle in the rear sleeve; after completing the fixed-length plug-in limit of the needle, the working head continues to rotate to the corresponding station position of the crimping device, and the crimping feed guide drives the crimping operation cylinder to drive the crimping sleeve pliers to feed the corresponding to the rear sleeve The crimping cylinder drives the two pliers of the crimping sleeve pliers to complete the crimping operation of the back sleeve and the needle, and the crimping device is reset after crimping; the working head that has completed the crimping operation continues to rotate to the detection device, and the CCD visual detection head rotates around the crimped back sleeve and needle for one circle on the detection rotating frame to complete the visual detection, and the driving motor can also drive the driving sleeve to rotate through the rotating shaft, thereby driving the tail sleeve on the working head corresponding to the detection device station to rotate, so that the crimped back sleeve and needle are rotated more than one circle, and the CCD visual detection head completes the visual detection to complete the effective crimping, thereby judging the subsequent operation process of unloading;After the inspection is completed, it rotates to the workstation position corresponding to the collection device. The feeding guide rail drives the feeding bidirectional cylinder to feed toward the crimping turntable, controls the jaws to open and clamp the crimped back sleeve and needle and pull them out of the sleeve. The feeding rail controls the back sleeve and needle clamped by the jaws to reset, and simultaneously presses the previous limit device to detect whether there is a back sleeve, needle insertion and the crimping condition of the detection mechanism, controls the collection guide rail to drive the defective collection tank or the finished product collection tank to move below the reset jaw position, and releases the jaws to feed the back sleeve without needle insertion, the back sleeve and needle with incomplete or wrong crimping into the defective collection tank, or the back sleeve and needle that pass the crimping test into the finished product collection tank. The overall equipment is convenient to operate, with high automation and precision. When the crimping turntable rotates, in order to prevent the threading shaft of the working head from rotating due to inertia, a damping block is set under the tail sleeve. A rear sleeve material stopper plate is provided at the height of the rear sleeve feeding track and connected to the front section of the rear sleeve loading head, so as to block the rear sleeve from being sent into the upper slot of the rear sleeve loading head by the rear sleeve feeding track and prevent it from falling out. ; BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a schematic diagram of the structure of the working head of the present invention; Figure 3 for Figure 1 A-axis structural diagram of the middle and rear sleeve feeding device; Figure 4 for Figure 1 Schematic diagram of the structure of the middle limit device in direction B; Figure 5 for Figure 1 Schematic diagram of the C-direction structure of the middle needle feeding device; Figure 6 for Figure 1 A schematic diagram of the D-direction structure of the medium crimping device; Figure 7 for Figure 1 The E-direction structural diagram of the detection device; Figure 8 for Figure 1 The F-direction structural diagram of the middle feeding device; Fig. 9 for Figure 8 Middle H view; Fig.10 for Figure 1 Schematic diagram of the G-direction structure of the hollow position detection mechanism.

[0016] In the figure: crimping turntable 1, turntable drive mechanism 2, working head 3, head seat 4, threading shaft 5, sleeve 6, tail sleeve 7, damping block 8, opening groove 9, hoop groove 10, hoop 11, rear sleeve feeding device 12, rear sleeve vibration plate 13, rear sleeve feeding track 14, rear sleeve feeding head 15, feeding trough 16, rear sleeve feeding cylinder 17, rear sleeve baffle plate 18, rear sleeve pushing cylinder 19, rear sleeve pushing head 20, limit device 21, limit bracket 22, limit cylinder 23, limit push head 24, limit material detection probe 25, needle feeding device 26, needle vibration plate 27, needle feeding rack 28, needle lower clamp 29, lower clamp Groove 30, needle lower chuck lifting guide rail 31, needle upper chuck 32, upper chuck groove 33, needle upper chuck lifting guide rail 34, needle push cylinder 35, needle push head 36, crimping device 37, crimping feed guide rail 38, crimping operation cylinder 39, crimping sleeve pliers 40, detection device 41, CCD visual detection head 42, drive motor 43, drive sleeve 44, unloading device 45, unloading feed guide rail 46, unloading clamping bidirectional cylinder 47, clamping claw 48, collecting guide rail 49, defective collection groove 50, finished product collection groove 51, empty position detection mechanism 52, empty position material detection probe 53, back sleeve 54, needle 55 DETAILED DESCRIPTION

[0017] The invention is further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1-10 As shown: an automatic crimping device for twist needles, including a crimping turntable 1 supported and rotated by a turntable driving mechanism 2, and a rear sleeve feeding device 12, a limiting device 21, a needle head feeding device 26, a limiting device, a crimping device 37, a detection device 41, a feeding device 45, and a vacancy detection mechanism 52 are arranged around the circumference of the crimping turntable 1. Eight working heads 3 are evenly distributed around the circumference on the crimping turntable 1. The working head 3 includes a head seat 4, a connecting shaft 5, a sleeve 6 and a tail sleeve 7. The head seat 4 is arranged on the crimping turntable 1. The connecting shaft 5 is connected to the head seat 4 along the radial direction of the crimping turntable. The connecting shaft 5 is connected to the sleeve 6 for plugging the rear sleeve outwardly, and the connecting shaft is connected to the tail sleeve 7 inwardly. A damping block 8 is arranged under the tail sleeve 7. The damping block 8 can be supported on the head seat or on the crimping turntable corresponding to the working head. The damping block 8 is in contact with the tail sleeve 7. The outer wall of the front end of the sleeve 6 is axially provided with more than two opening grooves 9 evenly distributed around the circumference, and a plurality of hoop grooves 10 are axially provided on the outer wall of the sleeve within the length range of the opening grooves. A hoop ring 11 is arranged in the hoop groove. Figure 2 .

[0019] like Figure 3In the figure, the rear sleeve feeding device 12 includes a rear sleeve vibration plate 13, a rear sleeve feeding track 14, a rear sleeve feeding head 15, a feeding trough 16, a rear sleeve feeding cylinder 17, a rear sleeve baffle plate 18, a rear sleeve pushing cylinder 19, and a rear sleeve pushing head 20. The rear sleeve vibration plate 13 sends the rear sleeve 54 to connect the rear end of the rear sleeve feeding track 14, the front end of the rear sleeve feeding track 14 corresponds to the rear end of the rear sleeve loading head 15, and a loading trough 16 is arranged on the rear sleeve loading head 15 corresponding to the rear sleeve conveying direction in the rear sleeve feeding track. The lower part of the rear sleeve loading head 15 is lifted and supported by the rear sleeve loading cylinder 17 to be in a state of corresponding to the rear sleeve feeding track or the sleeve inward respectively. A rear sleeve baffle plate 18 is arranged at the front end of the rear sleeve loading head 15 in the horizontal rear sleeve feeding direction of the rear sleeve feeding track 14. The rear sleeve pushing cylinder 19 is arranged on the radial outside of the rear sleeve loading head around the crimping turntable and parallel to the top of the rear sleeve feeding track 14. The rear sleeve pushing cylinder 19 is telescopically connected to the rear sleeve pushing head 20 toward the center of the crimping turntable.

[0020] like Figure 4 In the figure, the limiting device 21 includes a limiting bracket 22, a limiting cylinder 23, a limiting push head 24, and a limiting material detection probe 25. The limiting bracket 22 is connected to the limiting cylinder 23 that telescopes and feeds toward the center of the crimping turntable, and the limiting cylinder 23 is connected to the limiting push head 24 toward the center of the crimping turntable 1. A limiting device is also provided between the needle feeding device 26 and the crimping device 37, and each crimping turntable corresponding to the limiting device is also provided with a limiting material detection probe 25 corresponding to the front end of the sleeve.

[0021] like Figure 5 In the figure, the needle loading device 26 includes a needle vibrating disk 27, a needle loading rack 28, a needle lower clamp 29, a lower clamp groove 30, a needle lower clamp lifting guide rail 31, a needle upper clamp 32, an upper clamp groove 33, a needle upper clamp lifting guide rail 34, a needle pushing cylinder 35, and a needle pushing head 36. The needle loading rack 28 is provided with a needle lower chuck lifting guide rail 31 and a needle upper chuck lifting guide rail 34, the needle lower chuck lifting guide rail and the needle upper chuck lifting guide rail are respectively telescopically connected to the needle upper chuck 32 and the needle lower chuck 18 downward, and upper and lower clamping grooves 33 and 30 are respectively arranged on the relative clamping surfaces of the needle upper chuck and the needle lower chuck, the needle vibration disk 27 is connected to the outer end of the needle lower chuck to send out the needle 55 corresponding to the lower clamping groove, the needle pushing cylinder is parallel and higher than the discharge height of the needle vibration disk 27, the needle pushing cylinder 35 is arranged on the radial outer side of the needle upper chuck around the crimping turntable, and the needle pushing cylinder 35 is telescopically connected toward the center of the crimping turntable to the corresponding needle pushing head 26 that pushes the needle clamped in the upper and lower clamping grooves.

[0022] like Figure 6In the figure, the crimping device 37 includes a crimping feed guide rail 38, a crimping operation cylinder 39, and a crimping sleeve pliers 40. The crimping sleeve pliers 40 are arranged outside the crimping turntable corresponding to the center of the working head sleeve. The jaw center of the crimping sleeve pliers is in the same straight line with the center of the sleeve. The two clamp legs of the crimping sleeve pliers 40 are respectively connected to the two crimping operation cylinders 39. The two crimping operation cylinders 39 are arranged on the crimping feed guide rail 38 along the radial direction of the crimping turntable.

[0023] like Figure 7 In the figure, the detection device 41 adopts a CCD visual detection head 42; a drive motor 43 is arranged on the crimping turntable of the corresponding detection device, and the drive motor 43 drives the rotating shaft to connect the drive sleeve 44, the rotating shaft is parallel to the threading shaft, and the drive sleeve 44 crimps the tail sleeve 7.

[0024] like Figure 8-9 In the figure, the unloading device 45 includes an unloading feeding guide rail 46, an unloading clamping and feeding two-way cylinder 47, a clamping jaw 48, a collecting guide rail 49, a defective product collecting trough 50, and a finished product collecting trough 51. The unloading feeding guide rail 46 is arranged on the outer side of the crimping turntable and feeds radially along the crimping turntable 1. The unloading clamping and feeding two-way cylinder 47 is arranged on the unloading feeding guide rail 46 and is in a state of radial feeding along the crimping turntable. The two clamping jaws 48 connected to the unloading clamping and feeding two-way cylinder 47 are in a state of opening back to back or relatively clamping the rear sleeve inside the sleeve and the outer wall of the rear sleeve after the crimping of the needle is completed. A collecting guide rail 49 is also arranged below the retracted position of the clamping jaw of the unloading device. The collecting guide rail 49 is perpendicular to the feeding direction of the unloading feeding guide rail and drives the defective product collecting trough 50 and the finished product collecting trough 51 arranged on the collecting guide rail.

[0025] like Fig.10 In the figure, a vacancy detection mechanism 52 connected to the crimping turntable via a bracket is arranged between the unloading device and the rear sleeve loading device, and a working head is arranged corresponding to the vacancy detection mechanism, and a vacancy material detection probe 53 corresponding to the front end of the sleeve is arranged on the working head.

[0026] In this embodiment, the rear cover vibration disk and the needle vibration disk carry the rear cover and the needle to identify the direction of the vibration delivery.

[0027] In this embodiment, the tail sleeve, the driving sleeve and the damping block are preferably made of rubber or nylon.

[0028] In this embodiment, the crimping turntable 1, the rear sleeve loading device 12, the limiting device 21, the needle loading device 26, the limiting device, the crimping device 37, the detection device 41, the unloading device 45, and the empty position detection mechanism 52 are arranged on the equipment base or the stand.

Claims

1. A twist needle automatic crimping device, characterized in that: It includes a rear sleeve feeding device, a needle feeding device, a crimping device, a detection device, a feeding device and a crimping turntable. The rear sleeve feeding device, the needle feeding device, the crimping device, the detection device and the feeding device are arranged around the circumference of the crimping turntable on the outer circumference; more than five working heads are arranged around the circumference of the crimping turntable, and the working heads include a head seat, a threading shaft, a sleeve and a tail sleeve. The head seat is arranged on the crimping turntable, and the threading shaft is threaded along the radial direction of the crimping turntable on the head seat. The threading shaft is connected to the sleeve for plugging the rear sleeve outwardly, and the threading shaft is connected to the tail sleeve inwardly; the rear sleeve feeding device includes a rear sleeve vibration disk, a rear sleeve feeding track, a rear sleeve feeding head, a rear sleeve feeding cylinder, a rear sleeve pushing cylinder and a rear sleeve pushing head. The rear sleeve vibration disk feeds the rear sleeve to connect the rear end of the rear sleeve feeding track. The rear sleeve feeding track A rear sleeve feeding head is arranged at the front end of the track, and a feeding trough is arranged on the rear sleeve feeding head corresponding to the rear sleeve conveying direction in the rear sleeve feeding track, and the lower part of the rear sleeve feeding head is supported by the lifting of the rear sleeve feeding cylinder to be in a state of facing outwardly corresponding to the rear sleeve feeding track or facing inwardly corresponding to the sleeve, and the rear sleeve pushing cylinder is arranged on the radial outer side of the rear sleeve feeding head around the crimping turntable, and the rear sleeve pushing cylinder is telescopically connected to the rear sleeve pushing head toward the center of the crimping turntable; the needle head feeding device comprises a needle head vibration disk, a needle head feeding rack, a needle head lower chuck, a needle head lower chuck lifting guide rail, a needle head chuck, a needle head upper chuck lifting guide rail, a needle head pushing cylinder and a needle pushing head, and a needle head feeding rack is provided with a needle head lower chuck lifting guide rail and a needle head upper chuck lifting guide rail up and down, and the needle head lower chuck lifting guide rail and the needle head upper chuck lifting guide rail are facing The upper and lower clamps are respectively telescopically connected to the needle head clamp and the needle lower clamp, and upper and lower clamping grooves are respectively arranged on the relative clamping surfaces of the needle head clamp and the needle lower clamp, the needle vibration plate is connected to the outer end of the needle lower clamp corresponding to the lower clamping groove to send out the needle, the needle pushing cylinder is arranged on the radial outer side of the needle head clamp around the crimping turntable, the needle pushing cylinder is telescopically connected toward the center of the crimping turntable to correspondingly push the needle pushing head clamped in the upper and lower clamping grooves; the crimping device includes a crimping feed guide rail, a crimping operation cylinder and a crimping sleeve pliers, the crimping sleeve pliers corresponding to the working head sleeve center is arranged outside the crimping turntable, the jaw center of the crimping sleeve pliers is in the same line with the sleeve center, the two clamp legs of the crimping sleeve pliers are respectively connected to the two crimping operation cylinders, and the two crimping operation cylinders are arranged along the radial direction of the crimping turntable on the crimping feed rail; the detection device is a CCD visual detection head; the unloading device includes an unloading rack, an unloading feed rail, an unloading clamping and feeding bidirectional cylinder and two clamping jaws; the unloading rack is arranged on the outside of the crimping turntable, the unloading feed rail is arranged on the unloading rack, the unloading clamping and feeding bidirectional cylinder is arranged on the unloading feed rail and is in a radial feeding state along the crimping turntable, the two clamping jaws connected to the unloading clamping and feeding bidirectional cylinder are in a state of opening back to back or relatively clamping the outer wall of the rear sleeve inside the sleeve and the rear sleeve after the crimping of the needle is completed, and a collecting device is also arranged below the retracted position of the clamping jaws of the unloading device, the collecting device includes a collecting rail, a defective product collection trough and a finished product collection trough, and the collecting guide rail is perpendicular to the feeding direction of the unloading feed rail and drives the defective product collection trough and the finished product collection trough arranged on the collecting guide rail.

2. The automatic crimping device for twist needles according to claim 1 is characterized in that: The tail sleeve is a nylon sleeve or a rubber sleeve.

3. The automatic crimping device for twist needles according to claim 1 or 2, characterized in that: A damping block is arranged below the tail sleeve, the damping block is in contact with the tail sleeve, and the damping block is arranged on the head seat.

4. The automatic crimping device for twist needles according to claim 1 is characterized in that: The outer wall of the front end of the sleeve is axially provided with more than two open grooves evenly distributed around the circumference, and a plurality of hoop grooves are axially provided on the outer wall of the sleeve within the length range of the open grooves, and hoop rings are provided in the hoop grooves.

5. The automatic crimping device for twist needles according to claim 1 is characterized in that: The CCD visual detection head of the detection device is installed on the detection rotating frame and rotates around the sleeve.

6. The automatic crimping device for twist needles according to claim 1 or 2, characterized in that: A driving sleeve is arranged above the tail sleeve, the driving sleeve is pressed onto the tail sleeve, and a rotating shaft of the driving sleeve is externally connected to a driving motor.

7. The automatic crimping device for twist needles according to claim 1 is characterized in that: A limiting device is arranged between the rear sleeve feeding device and the needle feeding device, and between the needle feeding device and the crimping device. The limiting device includes a limiting bracket, a limiting cylinder and a limiting push head. The limiting bracket is connected to a limiting cylinder that telescopes and feeds toward the center of the crimping turntable. The limiting cylinder is connected to the limiting push head toward the center of the crimping turntable. Working heads are arranged corresponding to the rear sleeve feeding device, the limiting device, the needle feeding device, the detection device and the unloading device.

8. The automatic crimping device for twist needles according to claim 7 is characterized in that: A material detection probe corresponding to the front end of the sleeve is arranged on the working head corresponding to the limit device.

9. The automatic crimping device for twist needles according to claim 1 is characterized by: A vacancy detection mechanism is arranged between the unloading device and the rear sleeve loading device, and a working head is arranged corresponding to the vacancy detection mechanism, and a material detection probe corresponding to the front end of the sleeve is arranged on the working head.

10. The automatic crimping device for twist needles according to claim 1, characterized in that: The rear cover vibration disk and the needle vibration disk are provided with the rear cover and the needle for direction identification and delivery.

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