CN112629344A

CN112629344A - Letter pipe fitting assembling device and process

Info

Publication number: CN112629344A
Application number: CN202011437296.5A
Authority: CN
Inventors: 王彬; 贾昊楠; 陈明华; 姜志保; 王韶光; 王振生; 张洋洋; 王维娜; 尹会进
Original assignee: 32181 Troops of PLA
Current assignee: 32181 Troops of PLA
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2021-04-09
Anticipated expiration: 2040-12-10
Also published as: CN112629344B

Abstract

The invention relates to a letter pipe fitting assembly device and process, which comprises a main body for assembling a fitting to a fuze; the device comprises a fuse head cone conveying mechanism, a back nut feeding device, a fuse accessory storage and feeding clamp and a fuse accessory group mounting mechanism which are distributed in sequence; the fuse head cone conveying mechanism is used for inserting the pointed cone cap body into the fuse main body in the forward direction; the back nut feeding device is used for installing the back nut piece on the threaded part on the fuse main body; the fuse accessory storage feeding clamp is used for feeding the retaining pieces one by one; the invention has reasonable design, compact structure and convenient use.

Description

Letter pipe fitting assembling device and process

Technical Field

The invention relates to a letter pipe fitting assembly device and a letter pipe fitting assembly process.

Background

The fuze is an important component in the ammunition and is a final execution device for the ammunition to exert an end effect, and the success or failure of the fuze directly determines the success or failure of the ammunition system against a target. The structural design of the fuse is mainly to firmly connect all components of the fuse into a whole, so that the fuse forms a good aerodynamic shape, has enough strength, rigidity and stability, and can bear and transmit various loads which can be met in the whole service life of ammunition. At present, the structural design of the fuse mainly adopts the steps of fastening all components of the fuse on a frame and then installing and fastening the frame in a cabin body. Although the design method according to the existing fuze structure can also meet the function of the fuze, the space utilization rate is not high under the constraint of the same pneumatic appearance condition; on the contrary, under the condition of meeting the same function, the volume is inevitably increased, thereby leading to the increase of the mass. The structural form cannot adapt to the development direction of miniaturization, light weight, high performance and modularization of the modern weapon system.

How to provide a millimeter wave fuze, it has locking quick installation and becomes the technical problem that the solution is badly needed, how to realize the quick firm locking installation of millimeter wave fuze, how to realize the automatic installation equipment of each part and become the technical problem that the solution is badly needed.

Disclosure of Invention

The invention aims to solve the technical problem of providing a device and a process for assembling a letter pipe fitting. In order to solve the problems, the technical scheme adopted by the invention is as follows: a letterbox fitting assembly device for assembling a fitting to a fuze body; the device comprises a fuse head cone conveying mechanism, a back nut feeding device, a fuse accessory storage and feeding clamp and a fuse accessory group mounting mechanism which are distributed in sequence; the fuse head cone conveying mechanism is used for inserting the pointed cone cap body into the fuse main body in the forward direction; the back nut feeding device is used for installing the back nut piece on the threaded part on the fuse main body; the fuse accessory storage feeding clamp is used for feeding the retaining pieces one by one; the fuse accessory group mounting mechanism is used for mounting the retaining pieces on the retaining grooves on the fuse main body in a reverse direction one by one and is in pressure contact with the back female piece. As a further improvement of the above technical solution: the fuse head cone conveying mechanism comprises a cone head parallel stretcher track with a longitudinal channel in the middle; a cone head limiting lifting head controlled by a mechanical arm is arranged above the cone head parallel stretcher track, a cone head rear side wedge with a large upper part and a small lower part is arranged on the back side of the cone head limiting lifting head, and a cone head n-type clamping head is lifted and lowered on the front side of the cone head limiting lifting head; cone head side conveying belts for laterally shifting the cone-shaped cap body side shifting plate are symmetrically arranged on two sides above the cone head parallel stretcher track, and a cone head bottom pushing part is arranged below the cone head parallel stretcher track; push plates used for longitudinally pushing the lower part of the pointed cone cap body are distributed above the pushing part at the bottom of the cone head; cone head forward adjusting stop rods are symmetrically arranged on two sides of the upper part of the cone head parallel to the stretcher track; when the sharp-cone cap body is vertically placed on the stretcher track with the cone head parallel to the stretcher track, when the sharp end is downward, the outer diameter of the striker loop bar is smaller than the neutral space interval of the forward adjusting gear bar of the cone head; when the tip is upward, the outer diameter of the corresponding part of the lower part of the tip is larger than the neutral position interval of the forward adjusting gear lever of the conical head; a cone head swinging mechanical arm is arranged on one side of the cone head parallel to the output end of the stretcher track, a cone head rotating swing rod rotates on the cone head swinging mechanical arm, and a cone head swinging cone sleeve head is arranged at the cantilever end of the cone head rotating swing rod; a cone head lifting gear taper sleeve is lifted above the cone head parallel stretcher track; a conical head guide inclined plane is arranged in front of the conical head output end of the conical head parallel to the stretcher track, and a conical head centering downward pressing herringbone seat is arranged below the conical head guide inclined plane; the pointed cone cap body is vertically placed on the stretcher track parallel to the cone head to longitudinally advance, and the lower part of the pointed cone cap body is positioned in the longitudinal channel; when the tip end faces downwards, the neutral position of the cone head forward movement adjusting gear lever guides the striker pin sleeve rod to move forwards; when the tip end is upward, the neutral position of the forward adjusting stop lever of the cone head blocks the upper tip end of the cone cap body to move forward, but the lower firing pin sleeve lever moves forward to incline the cone cap body; the conical head n-type clamping head presses the tip downwards to the position below the conical head parallel to the stretcher track, and meanwhile, the inclined wedge on the rear side of the conical head blocks and pushes the conical cap body backwards to retreat to generate a space, so that the adjustment is realized; the cone head lifting gear cone sleeve presses down the top of the subsequent firing pin sleeve rod to be blocked from advancing; a cone head swinging mechanical arm in front of a cone head lifting gear cone sleeve controls the cone head swinging cone sleeve to be sleeved with a firing pin sleeve rod tail, the cone head rotates towards the swing rod to rotate, the needle sleeve rod is horizontally placed on a stretcher track parallel to the cone head and is longitudinally pushed to the cone head to be centered and downwards pressed below the herringbone seat and moves forwards to be inserted into the left end part of the fuse main body; the conical head presses down the herringbone seat in a centering way to position the pointed conical cap body in a centering way to move forward. The back nut feeding device comprises a back nut storage channel which is horizontally or downwards obliquely and longitudinally arranged; a back female piece is prestored in the back female storage channel; a back nut process through groove is formed in the periphery of the back nut storage channel to be matched with the protrusion of the outer side wall groove in a protruding mode; a back nut rear push rod is arranged at the inlet of the back nut storage channel to push the back nut piece fed by the feeding material to move forwards; the output end of the back nut transverse vibration guide groove is provided with one end of a back nut transfer station, and the other end of the back nut transfer station is connected with the input end of a back nut longitudinal channel; a push rod is arranged at the back nut transfer station to send the back nut piece to the input end of the back nut longitudinal channel; a back female transverse push rod piece is arranged on one side of the input end of the back female transverse vibration guide groove and is connected with a back female transverse push plate moving in the back female transverse vibration guide groove; opening or shielding an outlet of the carrier storage channel on one end face of the carrier transverse pushing plate; a back female swing auxiliary baffle is arranged at the input end of the back female longitudinal channel in a swinging mode, when the back female swing auxiliary baffle swings, the back female pieces are output one by one, and when the back female swing auxiliary baffle is placed vertically, the front end face of the back female piece fed from the back female transverse vibration guide groove is assisted to be straightened; the front end surface of the back female transverse pushing plate is provided with a larger opening to be matched with the vertical rear end surface of the back female piece; the back nut transfer station is arranged between the output end of the back nut transverse vibration guide groove and the input end of the back nut longitudinal channel; a back nut longitudinal spring ejector rod is arranged on one side of the back nut transfer station opposite to the input end of the back nut longitudinal channel, a back nut turning head is arranged at the end part of the back nut longitudinal spring ejector rod, and a back nut insertion claw is arranged at the end part of the back nut turning head to be inserted into the outer side wall groove; back nut insertion gaps are formed among the back nut insertion claws so as to be matched with the bulges among the grooves on the outer side wall; a back nut longitudinal spring ejector rod is arranged at the center of the back nut inserting claw, and a back nut central ejector head is arranged at the end part of the back nut longitudinal spring ejector rod so as to be aligned with a back nut central hole; a back nut top height oblique baffle is transversely and obliquely arranged above the output end of the back nut transverse vibration guide groove, and the distance between the lower end of the back nut top height oblique baffle and the upper bottom surface of the back nut transverse vibration guide groove is between the opposite side distance and the opposite angle distance of the hexagonal back nut; a back female piece is stored in the back female storage channel, and a bulge between the grooves on the outer side wall is positioned in the back female process through groove; the back female push rod pushes the back female piece fed by the feeding material to move forwards to the input end of the back female transverse vibration guide groove; the back nut transverse push rod piece drives the back nut transverse push plate to move in the back nut transverse vibration guide groove, so that the back nut piece moves forwards to a back nut transfer station, the front end face of the back nut piece is attached to the back nut swing auxiliary baffle, and meanwhile, the outlet of the back nut process through groove is shielded; in the vibration forward movement, the back female piece is adjusted to be downward facing on one side by the inclined baffle plate of the top height of the back female piece; at a back nut transfer station, the back nut longitudinal spring ejector rod moves forwards and rotates to adjust the angle through the back nut turning head, so that the back nut insertion claw is inserted into the outer side wall groove and is aligned with the back nut central hole through the back nut central ejector head; in the back nut longitudinal channel, the back nut element is output to the inner cavity of the main body through the back nut swing auxiliary baffle which is pushed upwards; the back nut rotating head rotates to screw the back nut onto the firing pin shank. The fuse accessory storage and feeding clamp comprises a backstop rotating tray which is arranged in a rotating mode; the backstop rotary tray is provided with a backstop material spitting station and a backstop material feeding station; a backstop storage inserted bar is vertically distributed on the backstop rotary tray, and a backstop piece with a downward opening splayed contact piece is sleeved on the backstop storage inserted bar; the stopping feeding station is used for receiving a stopping piece falling and output in the previous process; at the stopping and spitting station, a stopping and spitting lifting seat is lifted, a stopping and spitting L-shaped supporting fork is horizontally stretched on the stopping and spitting lifting seat, and a stopping and spitting process notch with the width larger than the outer diameter of the stopping and storing inserted bar and smaller than the outer diameter of the opening elastic ring piece is arranged on the stopping and spitting L-shaped supporting fork; a backstop output channel is arranged at the backstop material-spitting station to receive the backstop piece delivered by the backstop material-spitting L-shaped supporting fork; the backstop output channel is a backstop outlet limiting channel which is provided with a gap passing through the backstop piece; the front opening of the output end of the limited channel of the backstop outlet is arranged, and the process channel is arranged below the output end of the limited channel of the backstop outlet, so that the next process can be conveniently lifted into the backstop piece from the process channel, and the backstop piece can be forwards output from the front opening; the last procedure comprises a vibration feeding disc for scattering and storing the retaining pieces and a vibration channel for feeding the retaining pieces one by one; a lower support nut seat is lifted on the backstop storage inserted bar, and after a backstop piece is taken down or falls down on the backstop storage inserted bar, the lower support nut seat is lifted or falls by a corresponding height; the fuse accessory storage and feeding clamp comprises a backstop one-way upward swinging stop door arranged at the bottom of a backstop single input station of a backstop outlet limiting passage, and a backstop lower stop seat for preventing the backstop one-way upward swinging stop door from swinging downwards is arranged below the backstop one-way upward swinging stop door; a backstop material-spitting L-shaped supporting fork is arranged below the backstop unidirectional upper swing stop gate; a stopping push ejector rod is further arranged at the stopping single input station and used for outputting the stopping piece from the position above the stopping unidirectional upward swinging stop gate; a grid plate is arranged at a single backstop input station, the grid is matched with the backstop material discharge process notch, and the backstop piece is prevented from being taken out; the retaining piece falls from the vibration feeding disc to a retaining storage insert rod positioned at a retaining feeding station through a vibration channel for feeding one by one; the backstop rotary tray sends the backstop storage inserted rod with the backstop piece to a backstop material ejection station; at the stopping and material-delivering station, the stopping and material-delivering L-shaped supporting fork extends to the stopping and storing inserted link, the stopping piece at the uppermost layer is lifted up and leaves the stopping and storing inserted link, then the stopping piece continues to move upwards and top, so that the stopping piece swings upwards towards the swing stop gate, and the stopping piece comes above the stopping single input station; the check single upward swing stop gate is closed by downward swing of self weight, and the check spitting L-shaped support fork enters the grid plate; the anti-return material-spitting L-shaped supporting fork retreats from the grid and leaves the anti-return piece on the anti-return single-upward swing stop door; the backstop push ejector rod forwards and sends out the backstop piece along the backstop outlet limited channels; when the backstop piece with the splayed contact piece of the backstop material-spitting L-shaped supporting fork lifting opening facing upwards is contacted with the lower surface of the backstop single-direction upward swinging stop door, the contact position of the backstop piece is close to the root part of the backstop single-direction upward swinging stop door, so that the rising resistance of the backstop material-spitting L-shaped supporting fork is increased and the false alarm is considered. The fuze accessory group installation mechanism comprises a plurality of stop adjusting first rotating arms rotating on concentric vertical surfaces; a backstop adjusting first clamping frame claw is arranged at the end part of each backstop adjusting first rotating arm so as to be clamped in a corresponding outer side wall groove of the backstop piece; the first anti-back adjustment rotating arm rotates to sequentially pass through the first anti-back adjustment feeding station, the first anti-back adjustment intermediate station and the anti-back adjustment connecting station; the length of each paw of the first clamping frame paw is adjusted in a stopping way; at a first feeding station for stopping adjustment, a first rotating arm for stopping adjustment is arranged upwards to receive a stopping piece fed in the previous process, and an open splayed contact piece is arranged towards the rotating center; in the first stopping adjustment intermediate station, the first stopping adjustment rotating arm is arranged obliquely upwards, a first stopping adjustment pressing elastic sheet is obliquely arranged, and the lower end of the first stopping adjustment pressing elastic sheet is used for contacting with a stopping piece so as to press the stopping piece; at the backstop adjustment connecting station, the backstop adjustment first rotating arm is horizontally arranged and used for horizontally sending out the backstop piece; a horizontal pushing manipulator is arranged at the stopping adjustment connecting station; the fuze accessory group installation mechanism also comprises a plurality of backstop adjusting second rotary telescopic arms which rotate on concentric vertical surfaces; a backstop adjusting second taper head is arranged at the end part of the backstop adjusting second rotary telescopic arm, a backstop adjusting second pushing sliding sleeve is radially and movably arranged on the backstop adjusting second rotary telescopic arm, and the backstop adjusting second pushing sliding sleeve is close to or far away from the backstop adjusting second taper head; the backstop piece is clamped on the conical surface of the backstop adjusting second conical head; the backstop adjusting second rotary telescopic arm rotates to sequentially pass through a backstop adjusting connecting station, a backstop adjusting second middle station and a backstop adjusting second output station; at the stopping adjustment connecting station, a stopping piece sent in the previous process is received; a second n-type press finger for stopping adjustment is arranged at a second stopping adjustment intermediate station so as to press the stopping piece on the conical surface of the second conical head for stopping adjustment; at a backstop adjusting second output station, a backstop adjusting second rotary telescopic arm extends into the inner cavity of the main body and is abutted against the end face of the inner cavity of the firing pin; the backstop adjusting second pushing sliding sleeve pushes the backstop piece from the backstop adjusting second taper head to the backstop groove; a backstop adjusting second pushing-out hand is arranged at the backstop adjusting second output station; process grooves are distributed on the outer side wall of the backstop adjusting second taper head, and a process plate entering and exiting the process grooves is arranged in the inner cavity of the backstop adjusting second pushing sliding sleeve; at the backstop adjustment connecting station, the backstop adjustment first clamping frame paw and the backstop adjustment second taper head are used for realizing the connection of the backstop piece; the stopping adjustment first feeding station is provided with an output end of a fuze accessory storage feeding clamp; and a backstop output channel is arranged at the backstop material-spitting station to receive the backstop piece delivered by the backstop material-spitting L-shaped supporting fork. A letterbox fitting assembly process for assembling a fitting to a fuze body; the process comprises the following steps that S1, the nose cone transmission mechanism positively inserts the nose cone cap body into the main body of the fuse; s2, mounting the back female piece on the threaded part on the fuse main body by the back female feeding device; s3, the fuze accessory storage feeding clamp feeds the backstop pieces one by one; and/or S4, the fuze assembly set mounting mechanism mounting the backstop members to the backstop grooves on the fuze body one by one in a reverse direction and in pressure contact with the back female member. As a further improvement of the above technical solution: wherein, the following steps are included in S1; s1.1, firstly, vertically placing a pointed cone cap body on a stretcher track with a cone head parallel to the stretcher track to longitudinally advance, wherein the lower part of the pointed cone cap body is positioned in a longitudinal channel; secondly, when the tip end faces downwards, the neutral position of the forward movement adjusting gear rod of the conical head guides the firing pin sleeve rod to move forwards, when the tip end faces upwards, the neutral position of the forward movement adjusting gear rod of the conical head blocks the tip end of the upper part of the conical cap body to move forwards, but the lower firing pin sleeve rod moves forwards to enable the conical cap body to incline; thirdly, the conical head n-type clamping head presses the tip end downwards to the position below the conical head parallel to the stretcher track, and meanwhile, the inclined wedge on the rear side of the conical head blocks and pushes the conical cap body backwards to retreat to generate a gap, so that the adjustment is realized; then, the cone head lifting gear cone sleeve presses down the top of the subsequent firing pin sleeve rod to be blocked to move forward; s1.2, firstly, operating a conical head swinging mechanical arm in front of a conical head lifting gear conical sleeve to control the conical head swinging conical sleeve to be sleeved with the tail of a firing pin sleeve rod; then, the conical head rotates to the swing rod to rotate, the needle sleeve rod is horizontally placed on the conical head parallel stretcher track and longitudinally pushed to the position below the conical head centering downward pressing herringbone seat and moves forward to be inserted into the left end portion of the fuse main body, and the conical head centering downward pressing herringbone seat centers the pointed conical cap body to be positioned and moves forward. Wherein, the following steps are included in S2; s2.1, firstly, storing a back female piece in a back female storage channel, wherein a bulge is arranged between grooves on the outer side wall and in a back female process through groove; then, a back female push rod pushes the back female piece fed by the feeding to move forwards to the input end of the back female transverse vibration guide groove; secondly, the back female transverse push rod piece drives the back female transverse push plate to move in the back female transverse vibration guide groove, the back female piece moves forwards to a back female transfer station, the front end face of the back female piece is attached to the back female swing auxiliary baffle, the outlet of the back female process through groove is shielded, and meanwhile, in the process of moving forwards in a vibration mode, the back female top height inclined baffle adjusts the back female piece to be one side face downward; s2.2, at a back nut transfer station, the back nut longitudinal spring ejector rod moves forward and rotates to adjust the angle through the back nut rotating direction head, so that the back nut insertion claw is inserted into the outer side wall groove and is aligned with the back nut central hole through the back nut central ejector head; s2.3, firstly, in the back female longitudinal channel, the back female piece is output to the inner cavity of the main body through the back female swing auxiliary baffle which is pushed upwards; the dorsal nut steering head is then rotated to screw the dorsal nut onto the firing pin shank. Wherein, the following steps are included in S3; s3.1, firstly, the vibration feeding disc for scattering and storing the retaining pieces vibrates and rotates, so that the retaining pieces move forwards through vibration channels for feeding one by one according to preset regulations; then, at a stopping feeding station, a stopping piece falling and output in the previous process is received; then, the material is rotated to a backstopping material-spitting station through a backstopping rotating tray; s3.2, at the stopping and material delivering station, firstly, extending a stopping and material delivering L-shaped supporting fork to a stopping and storing inserted link, lifting the stopping piece at the uppermost layer away from the stopping and storing inserted link, continuing to move upwards and push upwards to enable a stopping sheet to swing upwards to the swing stop gate, and enabling the stopping piece to move to the position above a stopping single input station; then, the stopping single upward swing stop gate swings downwards and is closed through self weight, and the stopping spitting L-shaped support fork enters a grid plate; secondly, the anti-return material-spitting L-shaped supporting fork retreats from the grid and keeps the anti-return piece on the anti-return single-upward swing stop door; thirdly, the stopping push ejector rod forwards and sends out the stopping piece along the stopping outlet limiting channel and through the stopping outlet limiting channel; when the backstop piece with the splayed contact piece of the backstop material-spitting L-shaped supporting fork lifting opening facing upwards is contacted with the lower surface of the backstop single-direction upward swinging stop door, the contact position of the backstop piece is close to the root part of the backstop single-direction upward swinging stop door, so that the rising resistance of the backstop material-spitting L-shaped supporting fork is increased and the false alarm is considered. Wherein, the following steps are included in S4; s4.1, firstly, at a first feeding station for stopping adjustment, swinging a first rotating arm for stopping adjustment upwards, inserting a first clamping frame paw for stopping adjustment into a process channel at the output end of a limited channel at a stopping outlet, pulling out a stopping piece from an opening in front of the output end of the limited channel at the stopping outlet and rotating the stopping piece, and requiring an open splayed contact piece to be arranged towards a rotating center; then, at a first stopping adjustment intermediate station, the lower end of a first stopping adjustment lower pressing elastic sheet is contacted with a rotating stopping piece, so that the stopping piece is pressed rightly; s4.2, at a stopping adjustment connecting station, horizontally pushing out a stopping piece on a stopping adjustment first rotating arm by a mechanical arm; then, the backstop adjusting second taper head receives the backstop pieces which are respectively sent out; secondly, at a second stopping adjustment intermediate station, a second n-shaped stopping adjustment pressing finger presses the rotating stopping piece to be on the conical surface of the second stopping adjustment taper head; thirdly, in a backstop adjustment second output station, a backstop adjustment second rotary telescopic arm extends into the inner cavity of the main body and is abutted against the end face of the inner cavity of the firing pin; and then, the backstop adjusting second pushing sliding sleeve pushes the backstop piece to the backstop groove from the backstop adjusting second taper head. The invention has the advantages of reasonable design, low cost, firmness, durability, safety, reliability, simple operation, time and labor saving, capital saving, compact structure and convenient use. Drawings

Fig. 1 is a schematic diagram of a fuse using structure of the present invention.

Fig. 2 is a schematic diagram of the overall manufacturing structure of the present invention.

Fig. 3 is a schematic diagram of the structure of the fuse head cone transmission mechanism of the present invention.

Fig. 4 is a schematic structural diagram of a carrier feeding device of the invention.

Fig. 5 is a schematic view of the fuse accessory storage and loading clamp of the present invention.

Fig. 6 is a schematic structural view of the fuze assembly gang mounting mechanism of the present invention.

Wherein: 1. a pointed cone cap body; 2. a fuse body; 3. a back female member; 4. a backstop member; 5. a positioning step outside the cap; 6. a firing pin loop bar; 7. the end of the firing pin; 8. a backstop groove; 9. the firing pin cavity; 10. a main body inner bore; 11. a body end inner spigot; 12. a main body inner cavity; 13. an outer sidewall trench; 14. an open elastic ring sheet; 15. an open splayed contact plate; 17. a fuse nose cone transport mechanism; 18. a back nut feeding device; 19. the fuse accessory stores the feeding clamp; 20. a fuse accessory group mounting mechanism; 46. the cone head is parallel to the stretcher track; 47. a cone-head-side conveyor belt; 48. a conical head limit lifting head; 49. a cone head n-type chuck; 50. a tapered wedge is arranged at the rear side of the conical head; 51. the forward movement of the conical head adjusts the gear lever; 52. the cone head is lifted to form a gear cone sleeve; 53. the conical head swings the mechanical arm; 54. the conical head is rotated to the swing rod; 55. the cone head swings the cone sleeve head; 56. a cone head output end; 57. the conical head is guided to the inclined plane; 58. the conical head presses down the herringbone seat in a centering way; 59. a conical head bottom pushing part; 60. a memory channel carrying a memory; 61. a back mother process through groove; 62. a back push rod for carrying the nut; 63. the back nut transversely vibrates the guide slot; 64. a back female transverse push rod member; 65. a back nut transverse pushing plate; 66. the back nut top is high and inclined to the baffle plate; 67. a carrier transfer station; 68. a back nut longitudinal spring mandril; 69. back nut rotating heads; 70. a back nut insertion claw; 71. back nut insertion gaps; 72. a back nut longitudinal spring mandril; 73. a back nut center plug; 74. a back nut swing auxiliary baffle; 75. a back nut longitudinal channel; 76. stopping the rotating tray; 77. stopping to store the inserted rod; 78. a backstop material spitting station; 79. stopping the feeding station; 80. a backstop material-spitting lifting seat; 81. a backstop spitting L-shaped supporting fork; 82. a backstopping spitting process notch; 83. stopping the single input station; 84. the stop single swings the stop gate upwards; 85. stopping the lower stop seat; 86. stopping and pushing the ejector rod; 87. the backstop outlet is limited into a channel; 88. stopping and adjusting the first rotating arm; 89. stopping and adjusting the first clamping frame paw; 90. stopping and adjusting a first feeding station; 91. stopping and adjusting a first intermediate station; 92. stopping and adjusting the first downward pressing elastic sheet; 93. stopping, adjusting and connecting stations; 94. stopping and adjusting the second rotary telescopic arm; 95. stopping and adjusting the second taper head; 96. stopping and adjusting the second pushing sliding sleeve; 97. stopping and adjusting a second intermediate station; 98. stopping and adjusting a second n-type press finger; 99. stopping and adjusting a second output station; 100. the second pushing hand is adjusted in a stopping way.

Detailed Description

As shown in fig. 1, the millimeter wave fuse end structure of the present embodiment includes a fuse main body 2 and a pointed cone cap 1 installed at the left end of the fuse main body 2; the tail part of the sharp cone cap body 1 is positioned in a main body inner cavity 12 of the fuse main body 2 and is connected through a back female part 3; the right part of the pointed cone cap body 1 is connected with an outer cap positioning step 5, the right end of the outer cap positioning step 5 is provided with a firing pin loop bar 6, the right end of the firing pin loop bar 6 is provided with a firing pin end 7, the firing pin loop bar 6 is provided with a threaded part, and a backstop groove 8 is arranged on the firing pin end 7 and positioned on the right side of the threaded part; a main body inner hole 10 is formed at the left end of the main body inner cavity 12, and a main body end inner spigot 11 is arranged at the left end of the main body inner hole 10; the cap outer positioning step 5 is positioned in the main body end inner spigot 11, after the firing pin loop bar 6 passes through the main body inner hole 10, the thread part is exposed from the right side of the main body inner hole 10 and connected with the back female part 3; the positioning step 5 outside the cap and the inner spigot 11 of the main body end are both hexagonal, triangular or square; the back female element 3 is provided with a retaining element 4 which is arranged in the inner cavity 12 of the main body and is arranged on the retaining groove 8 in the inner cavity 12 of the main body. The left end of the sharp-cone cap body 1 is of a conical structure and is matched with a fire cap; a firing pin inner cavity 9 is arranged in the firing pin loop bar 6 to place a firing pin point; an outer side wall groove 13 is distributed on the outer side wall of the back female piece 3; the backstop 4 comprises an open elastic ring piece 14 with an oblique opening, and the left side of the open elastic ring piece 14 is provided with the root of an open splayed contact piece 15; the opening elastic ring piece 14 is provided with jacks positioned at two sides of the inclined opening; the opening splayed contact piece 15 is arranged in an apron manner, and the left end of the opening splayed contact piece 15 is used for being in pressure contact with the right side surface of the outer side wall groove 13 or being inserted into the outer side wall groove 13.

As shown in fig. 1 to 6, the pipe fitting assembling apparatus of the present embodiment is used for assembling a fitting to a fuse body 2; the device comprises a fuse head cone conveying mechanism 17, a back female feeding device 18, a fuse accessory storage and feeding clamp 19 and a fuse accessory grouping installation mechanism 20 which are distributed in sequence; the fuse nose cone conveying mechanism 17 is used for inserting the sharp cone cap body 1 into the fuse main body 2 in the forward direction; a back nut feeding device 18 for mounting the back nut member 3 to the threaded portion on the fuse main body 2; the fuze accessory storage feeding clamp 19 is used for feeding the retaining pieces 4 one by one; the fuse fitting group mounting mechanism 20 is used for mounting the retaining pieces 4 on the retaining grooves 8 on the fuse main body 2 in a reverse direction one by one and is in pressure contact with the back female piece 3. The fuse head cone conveying mechanism 17 comprises a cone head parallel stretcher track 46 with a longitudinal channel in the middle; a cone head limiting lifting head 48 controlled by a mechanical arm is arranged above the cone head parallel stretcher track 46, a cone head rear side inclined wedge 50 with a large upper part and a small lower part is arranged on the back side of the cone head limiting lifting head 48, and a cone head n-type clamping head 49 is lifted and lowered on the front side of the cone head limiting lifting head 48; cone-head-side conveying belts 47 for laterally shifting a shifting plate at the side of the cone-head cap body 1 are symmetrically arranged at two sides above the cone-head parallel stretcher track 46, and a cone-head bottom pushing part 59 is arranged below the cone-head parallel stretcher track 46; push plates used for longitudinally pushing the lower part of the pointed cone cap body 1 are distributed above the pushing part 59 at the bottom of the cone head; the cone head forward adjusting stop rods 51 are symmetrically arranged on two sides above the cone head parallel stretcher track 46; when the pointed cone cap body 1 is vertically placed on the stretcher track 46 with the cone head parallel to the stretcher track, when the pointed end faces downwards, the outer diameter of the striker loop bar 6 is smaller than the neutral space interval of the cone head forward adjusting stop bar 51; when the tip is upward, the outer diameter of the corresponding part of the lower part of the tip is larger than the neutral position interval of the conical head forward adjusting gear rod 51; a conical head swinging mechanical arm 53 is arranged on one side of the conical head parallel to the output end of the stretcher track 46, a conical head turning swing rod 54 is rotated on the conical head swinging mechanical arm 53, and a conical head swinging conical sleeve head 55 is arranged at the cantilever end of the conical head turning swing rod 54; a conical head lifting gear taper sleeve 52 is lifted above the conical head parallel stretcher track 46; a conical head guide inclined plane 57 is arranged in front of the conical head output end 56 of the conical head parallel stretcher track 46, and a conical head centering downward pressing herringbone 58 is arranged below the conical head guide inclined plane 57; the pointed cone cap body 1 is vertically placed on the stretcher track 46 with the cone head parallel to the stretcher track and moves forwards longitudinally, and the lower part of the pointed cone cap body 1 is positioned in the longitudinal channel; when the tip end faces downwards, the neutral position of the cone head forward movement adjusting gear rod 51 guides the striker pin sleeve rod 6 to move forwards; when the tip end is upward, the neutral position of the forward movement adjusting gear rod 51 of the cone head blocks the forward movement of the upper tip end of the cone cap body 1, but the forward movement of the lower firing pin sleeve rod 6 leads the cone cap body 1 to incline; the conical head n-type chuck 49 presses the tip downwards to the position below the conical head parallel stretcher track 46, and meanwhile, the conical head rear side inclined wedge 50 blocks and pushes the conical cap body 1 backwards to generate a space, so that the adjustment is realized; the cone head lifting gear taper sleeve 52 presses down the top of the subsequent firing pin sleeve rod 6 to be blocked from advancing; a cone head swinging mechanical arm 53 in front of the cone head lifting gear cone sleeve 52 controls a cone head swinging cone sleeve head 55 to sleeve the tail part of the firing pin sleeve rod 6, the cone head rotates to the swinging rod 54, the needle sleeve rod 6 is horizontally placed on the cone head parallel stretcher track 46 and is longitudinally pushed to the cone head to be centered and downwards pressed below the herringbone seat 58 and moves forwards to be inserted into the left end part of the fuse main body 2; the conical head presses down the herringbone seat 58 to center and position the pointed conical cap body 1 forward. The back nut feeding device 18 comprises a back nut storage channel 60 which is horizontally or obliquely and longitudinally arranged downwards; the back female piece 3 is pre-stored in the back female storage channel 60; back female process through grooves 61 are formed in the periphery of the back female storage channel 60 to be matched with the outer side wall grooves 13 in a protruding mode; a back female rear push rod 62 is arranged at the inlet of the back female storage channel 60 to push the back female piece 3 fed by the feeding material to move forward; an input end of a back nut transverse vibration guide groove 63 is transversely arranged at an outlet of the back nut storage channel 60, one end of a back nut transfer station 67 is arranged at an output end of the back nut transverse vibration guide groove 63, and the other end of the back nut transfer station 67 is connected with an input end of a back nut longitudinal channel 75; a push bar is provided at the back nut transfer station 67 to feed the back nut 3 to the input end of the back nut longitudinal channel 75; a back female transverse push rod piece 64 is arranged on one side of the input end of the back female transverse vibration guide groove 63, and the back female transverse push rod piece 64 is connected with a back female transverse push plate 65 which moves in the back female transverse vibration guide groove 63; the outlet of the carrier storage channel 60 is opened or shielded at one end face of the carrier transverse pushing plate 65; a back female swing auxiliary baffle plate 74 is arranged at the input end of the back female longitudinal channel 75 in a swinging mode, when the back female swing auxiliary baffle plate swings, the back female pieces 3 are output one by one, and when the back female swing auxiliary baffle plate is placed vertically, the front end face of the back female piece 3 fed from the back female transverse vibration guide groove 63 is assisted to be straightened; the front end surface of the back female transverse pushing plate 65 is provided with a larger opening to be matched with the vertical rear end surface of the back female member 3; the back nut transfer station 67 is arranged between the output end of the back nut transverse vibration guide groove 63 and the input end of the back nut longitudinal channel 75; a back nut longitudinal spring push rod 68 is arranged on the side, opposite to the input end of the back nut longitudinal channel 75, of the back nut transfer station 67, a back nut rotating head 69 is arranged at the end part of the back nut longitudinal spring push rod 68, and a back nut inserting claw 70 is arranged at the end part of the back nut rotating head 69 and is inserted into the outer side wall groove 13; a back nut insertion gap 71 is provided between the back nut insertion claws 70 to be convex-fitted with the outer side wall groove 13; a back nut longitudinal spring ejector rod 72 is arranged at the center of the back nut insertion claw 70, and a back nut central ejector head 73 is arranged at the end part of the back nut longitudinal spring ejector rod 72 so as to be aligned with the central hole of the back nut 3; a back nut top height inclined baffle 66 is transversely and obliquely arranged above the output end of the back nut transverse vibration guide groove 63, and the distance from the lower end of the back nut top height inclined baffle to the upper bottom surface of the back nut transverse vibration guide groove 63 is between the distance from the opposite side to the diagonal of the hexagonal back nut component 3; the back female part 3 is stored in the back female storage channel 60, and the bulges between the outer side wall grooves 13 are positioned in the back female process through grooves 61; the back nut rear push rod 62 pushes the back nut 3 fed by the feeding to move forward to the input end of the back nut transverse vibration guide groove 63; the back female transverse push rod piece 64 drives the back female transverse push plate 65 to move in the back female transverse vibration guide groove 63, so that the back female piece 3 moves forwards to the back female transfer station 67, the front end face of the back female piece 3 is attached to the back female swinging auxiliary baffle 74, and the outlet of the back female process through groove 61 is shielded; in the vibration forward process, the back female piece 3 is adjusted to be downward facing on one side by the back female top height inclined baffle 66; at the back nut transfer station 67, the back nut longitudinal spring push rod 68 moves forward and rotates to adjust the angle through the back nut rotating head 69, so that the back nut insertion claw 70 is inserted into the outer side wall groove 13 and passes through the back nut central push head 73 to be centered with the back nut central hole 3; in the back female longitudinal channel 75, the back female element 3 passes through the back female swing auxiliary baffle 74 which is pushed upwards and then is output into the inner cavity 12 of the main body; the back nut turning head 69 is rotated to screw the back nut 3 onto the striker rod sleeve 6. Wherein the fuze accessory storage and feeding clamp 19 comprises a backstop rotating tray 76 which is rotatably arranged; the backstop rotary tray 76 is provided with a backstop material spitting station 78 and a backstop material feeding station 79; a backstop storage inserted rod 77 is vertically distributed on the backstop rotating tray 76, and a backstop piece 4 with an opening splayed contact piece 15 facing downwards is sleeved on the backstop storage inserted rod 77; a stopping feeding station 79 for receiving the stopping piece 4 falling and output in the previous process; a stopping spitting lifting seat 80 is lifted at a stopping spitting station 78, a stopping spitting L-shaped supporting fork 81 is horizontally stretched on the stopping spitting lifting seat 80, and a stopping spitting process notch 82 with the width larger than the outer diameter of the stopping storage inserted bar 77 and smaller than the outer diameter of the opening elastic ring piece 14 is arranged on the stopping spitting L-shaped supporting fork 81; a backstop output channel is arranged at the backstop material-spitting station 78 to receive the backstop piece 4 sent out by the backstop material-spitting L-shaped supporting fork 81; the backstop output channel is a backstop outlet limiting channel 87 which has a gap passing through the backstop 4; the front opening of the output end of the stop outlet limiting channel 87 is arranged, and a process channel is arranged below the output end of the stop outlet limiting channel 87, so that the next process is lifted into the stop piece 4 from the process channel, and the stop piece 4 is output forwards from the front opening; the last process comprises a vibration feeding disc for scattering and storing the retaining pieces 4 and a vibration channel for feeding the retaining pieces one by one; a lower support nut seat is lifted on the retaining storage insertion rod 77, and after a retaining piece 4 is taken down or falls down on the retaining storage insertion rod 77, the lower support nut seat is lifted or lowered by a corresponding height; the fuse accessory storage and feeding clamp 19 comprises a backstop single-direction upward swinging stop door 84 arranged at the bottom of a backstop single input station 83 of a backstop outlet limit passage 87, and a backstop lower stop seat 85 for preventing the backstop single-direction upward swinging stop door 84 from swinging downwards is arranged below the backstop single-direction upward swinging stop door 84; a backstop material-spitting L-shaped supporting fork 81 is arranged below the backstop unidirectional upper swing stop gate 84; a backstop push ejector rod 86 is further arranged at the backstop single input station 83, and the backstop push ejector rod 86 is used for outputting the backstop piece 4 from the upside of the backstop one-way upward swing stop gate 84; a grid plate is arranged at the single stopping input station 83, the grid is matched with the stopping spitting process notch 82 and blocks the stopping element 4 from being taken out; the retaining piece 4 falls from the vibration feeding tray to a retaining storage insert rod 77 positioned at a retaining feeding station 79 station through a vibration channel for feeding one by one; the anti-back rotating tray 76 sends the anti-back storage insert rod 77 with the anti-back piece 4 to the anti-back material-ejecting station 78; at the stopping and spitting station 78, the stopping and spitting L-shaped supporting fork 81 extends to the stopping and storing inserted rod 77, the stopping piece 4 at the uppermost layer is lifted to leave the stopping and storing inserted rod 77, then the upward pushing continues to make the stopping piece swing upwards to the stop gate 84, and the stopping piece 4 comes above the stopping single input station 83; the backstop single upward swing stop gate 84 swings downward by self weight to be closed, and the backstop spitting L-shaped support fork 81 enters a grid plate; the anti-return spitting L-shaped supporting fork 81 retreats from the grid and keeps the anti-return piece 4 on the anti-return single-upward swing stop door 84; the retaining push ejector rod 86 forwards sends out the retaining piece 4 along the retaining outlet limited passage 87; when the backstop piece 4 with the upward opening splayed contact piece 15 lifted by the backstop spitting L-shaped supporting fork 81 is contacted with the lower surface of the backstop one-way upward swinging stop door 84, the contact position is close to the root of the backstop one-way upward swinging stop door 84, so that the rising resistance of the backstop spitting L-shaped supporting fork 81 is increased, and the false alarm is considered. The fuze accessory group installation mechanism 20 comprises a plurality of stop adjusting first rotating arms 88 which rotate on concentric vertical surfaces; a backstop adjusting first clamping frame claw 89 is arranged at the end part of each backstop adjusting first rotating arm 88 so as to be clamped in the corresponding outer side wall groove 13 of the backstop member 4; the backstop adjustment first rotating arm 88 rotates to sequentially pass through the backstop adjustment first feeding station 90, the backstop adjustment first intermediate station 91 and the backstop adjustment joining station 93; the length of each paw of the backstop adjusting first clamping frame paw 89 can be adjusted; at a first feeding station 90 for stopping adjustment, a first rotating arm 88 for stopping adjustment is arranged upwards to receive a stopping piece 4 fed in the previous process, and an open splayed contact piece 15 is arranged towards the rotating center; in the first stopping adjustment intermediate station 91, the first stopping adjustment rotating arm 88 is obliquely arranged upwards, a first stopping adjustment pressing elastic sheet 92 is obliquely arranged, and the lower end of the first stopping adjustment pressing elastic sheet 92 is used for contacting with the stopping piece 4 so as to press the stopping piece 4 rightly; at the backstop adjustment joining station 93, the backstop adjustment first rotating arm 88 is horizontally arranged and used for horizontally sending out the backstop 4; a horizontal pushing-out manipulator is arranged at the stopping adjustment connecting station 93; the fuze accessory group installation mechanism 20 further comprises a plurality of stop adjusting second rotary telescopic arms 94 which rotate on concentric vertical surfaces; a backstop adjusting second taper head 95 is arranged at the end part of the backstop adjusting second rotary telescopic arm 94, a backstop adjusting second pushing sliding sleeve 96 is radially and movably arranged on the backstop adjusting second rotary telescopic arm 94, and the backstop adjusting second pushing sliding sleeve 96 is close to or far away from the backstop adjusting second taper head 95; the backstop 4 is clamped on the conical surface of the backstop adjusting second conical head 95; the backstop adjustment second rotary telescopic arm 94 rotates to sequentially pass through the backstop adjustment connecting station 93, the backstop adjustment second intermediate station 97 and the backstop adjustment second output station 99; at the stopping adjustment connecting station 93, the stopping piece 4 sent by the previous process is received; a second n-type press finger 98 for stopping adjustment is arranged at the second intermediate station 97 for stopping adjustment, so that the stopping piece 4 is pressed on the conical surface of the second conical head 95 for stopping adjustment; at the backstop adjustment second output station 99, the backstop adjustment second rotary telescopic arm 94 extends into the main body inner cavity 12 and is abutted against the end face of the firing pin inner cavity 9; the backstop adjusting second pushing sliding sleeve 96 pushes the backstop 4 from the backstop adjusting second taper head 95 to the backstop groove 8; a backstop adjusting second pushing-out hand 100 is arranged at the backstop adjusting second output station 99; the outer side wall of the backstop adjusting second taper head 95 is distributed with process grooves, and the inner cavity of the backstop adjusting second pushing sliding sleeve 96 is provided with a process plate entering and exiting the process grooves; at the stop adjustment joining station 93, the stop adjustment first clamping frame claw 89 and the stop adjustment second taper head 95 are used for realizing the handover of the stop piece 4; an output end of the fuze accessory storage feeding clamp 19 is arranged at the backstop adjustment first feeding station 90; the anti-retreat material-discharging station 78 is provided with an anti-retreat discharging passage for receiving the anti-retreat piece 4 discharged from the anti-retreat material-discharging L-shaped supporting fork 81.

The letter pipe fitting assembling process of the present embodiment is used for assembling a fitting to a fuse body 2; the process comprises the following steps that S1, the nose cone transmission mechanism 17 inserts the nose cone cap body 1 into the main body 2 of the fuse in the positive direction; s2, the back female feeding device 18 mounts the back female member 3 to the screw thread part on the fuse main body 2; s3, the fuze accessory storage feeding clamp 19 feeds the retaining pieces 4 one by one; and/or S4, the fuze assembly set mounting mechanism 20 mounting the backstop members 4 one by one in the backstop groove 8 on the fuze body 2 in the reverse direction and in pressure contact with the back female member 3.

Wherein, the following steps are included in S1; s1.1, firstly, vertically placing the pointed cone cap body 1 on a stretcher track 46 with a cone head parallel to the stretcher track to longitudinally advance, and positioning the lower part of the pointed cone cap body 1 in a longitudinal channel; secondly, when the tip end faces downwards, the neutral position of the cone head forward movement adjusting gear rod 51 guides the firing pin sleeve rod 6 to move forwards, when the tip end faces upwards, the neutral position of the cone head forward movement adjusting gear rod 51 blocks the forward movement of the upper tip end of the cone cap body 1, but the forward movement of the lower firing pin sleeve rod 6 enables the cone cap body 1 to incline; thirdly, the conical head n-type chuck 49 presses the tip downwards to the position below the conical head parallel stretcher track 46, and meanwhile, the conical head rear side inclined wedge 50 blocks and pushes the conical cap body 1 backwards to generate a space, so that the adjustment is realized; then, the cone head lifting gear taper sleeve 52 presses down the top of the subsequent firing pin sleeve rod 6 to be blocked to move forward; s1.2, firstly, a cone head swinging mechanical arm 53 in front of a cone head lifting gear cone sleeve 52 controls a cone head swinging cone sleeve head 55 to sleeve the tail part of a firing pin sleeve rod 6; then, the conical head rotates to the swing rod 54, the needle sleeve 6 is horizontally placed on the conical head parallel stretcher track 46 and longitudinally pushed to the position below the conical head centering downward pressing herringbone seat 58 and moves forward to be inserted into the left end part of the fuse main body 2, and the conical head centering downward pressing herringbone seat 58 centers the pointed conical cap body 1 to be positioned and moves forward. Wherein, the following steps are included in S2; s2.1, firstly, storing the back female piece 3 in a back female storage channel 60, wherein the protrusion between the outer side wall grooves 13 is positioned in the back female process through groove 61; then, the back nut rear push rod 62 pushes the back nut 3 fed by the feeding to move forward to the input end of the back nut transverse vibration guide groove 63; secondly, the back female transverse push rod piece 64 drives the back female transverse push plate 65 to move in the back female transverse vibration guide groove 63, the back female piece 3 moves forwards to a back female transfer station 67, the front end face of the back female piece 3 is attached to the back female swinging auxiliary baffle 74, the outlet of the back female process through groove 61 is shielded, and meanwhile, the back female top height inclined baffle 66 adjusts the back female piece 3 to be downward side in the vibration advancing process; s2.2, at a back nut transfer station 67, the back nut longitudinal spring ejector rod 68 moves forward and rotates to adjust the angle through the back nut rotating head 69, so that the back nut inserting claw 70 is inserted into the outer side wall groove 13 and is centered with the central hole of the back nut 3 through the back nut central ejector head 73; s2.3, firstly, in the back female longitudinal channel 75, the back female piece 3 passes through the back female swing auxiliary baffle 74 which is pushed upwards and then is output to the inner cavity 12 of the main body; the back nut turning head 69 is then rotated to screw the back nut 3 onto the striker rod sleeve 6. Wherein, the following steps are included in S3; s3.1, firstly, the vibration feeding disc for scattering and storing the retaining pieces 4 vibrates and rotates, so that the retaining pieces 4 move forwards through vibration channels for feeding one by one according to preset regulations; then, the retaining piece 4 which falls and is output in the previous process is received at the retaining feeding station 79; then, the material is rotated to a backstop material-ejecting station 78 through a backstop rotating tray 76; s3.2, at the stopping and spitting station 78, firstly, the stopping and spitting L-shaped supporting fork 81 extends to the stopping and storing inserted link 77, the stopping piece 4 at the uppermost layer is lifted to leave the stopping and storing inserted link 77, then the upward jacking is continued to make the stopping piece swing upwards to the stopping door 84, and the stopping piece 4 comes above the stopping piece input station 83; then, the stopping single upward swing stop gate 84 swings downward and closes by self weight, and the stopping spitting L-shaped support fork 81 enters the grid plate; secondly, the backstop material-spitting L-shaped supporting fork 81 retreats from the grid and keeps the backstop 4 on the backstop single-upward swing stop door 84; thirdly, the retaining push ejector rod 86 forwards sends out the retaining piece 4 along the retaining outlet limiting channel 87 and through the retaining outlet limiting channel 87; when the backstop piece 4 with the upward opening splayed contact piece 15 lifted by the backstop spitting L-shaped supporting fork 81 is contacted with the lower surface of the backstop one-way upward swinging stop door 84, the contact position is close to the root of the backstop one-way upward swinging stop door 84, so that the rising resistance of the backstop spitting L-shaped supporting fork 81 is increased, and the false alarm is considered. Wherein, the following steps are included in S4; s4.1, firstly, at a first feeding station 90 for stopping adjustment, swinging a first rotating arm 88 for stopping adjustment upwards, inserting a first clamping frame claw 89 for stopping adjustment into a process channel at the output end of a limited channel 87 at a stopping outlet, pulling out and rotating a stopping piece 4 from an opening in front of the output end of the limited channel 87 at the stopping outlet, and requiring an open splayed contact piece 15 to be arranged towards the rotating center; then, at the first intermediate stop adjusting station 91, the lower end of the first lower stop adjusting spring 92 contacts with the rotating stop member 4, so that the stop member 4 is pressed; s4.2, firstly, horizontally sending out the retaining piece 4 on the retaining adjustment first rotating arm 88 by a horizontal pushing manipulator at a retaining adjustment connecting station 93; then, the backstop adjustment second taper head 95 receives the backstop members 4 which are respectively sent out; secondly, at a second intermediate station 97 for stopping adjustment, a second n-shaped pressing finger 98 for stopping adjustment presses the rotating stopping piece 4 against the conical surface of the second conical head 95 for stopping adjustment; thirdly, at a stopping adjustment second output station 99, a stopping adjustment second rotary telescopic arm 94 extends into the main body inner cavity 12 and is abutted against the end face of the firing pin inner cavity 9; thereafter, the backstop adjustment second push sleeve 96 pushes the backstop 4 from the backstop adjustment second taper head 95 onto the backstop groove 8. Aiming at the technical problems of large anti-loose clearance and easy looseness of the existing fuze, the invention provides a set of scheme for realizing anti-loose, the end face of a pointed cone cap body 1 is installed on a fuze main body 2, a back nut member 3 is fastened in a threaded manner, a retaining member 4 is subjected to anti-loose treatment, a main body end inner spigot 11 and a cap outer positioning step 5 adopt hexagonal and other non-circular structures for realizing positioning and anti-loose rotation, a striker sleeve rod 6 plays a connecting role, a striker end 7 is guided, a retaining groove 8 is used for installing the retaining member 4 for realizing anti-loose, and an object is installed through a main body inner cavity 12 and a striker inner cavity 9. The main part hole 10 realizes that the direction is fixed, and is convenient locking, thereby opening elasticity ring piece 14 has elasticity, and opening splayed contact 15 realizes the butt, and when its and back end face contact, it is locking to realize the axial through the draw-in groove, and when realizing the locking card through lateral wall slot 13 and die, when its axial displacement to make the shell fragment constantly expand, thereby increase elasticity has realized that elasticity is locking. The invention improves the head structure of the fuse, thereby simplifying the structure appearance, ensuring that the product has good anti-loosening effect, good manufacturability and convenient installation. The installation of each accessory is realized through a fuse head cone conveying mechanism 17, a female back feeding device 18, a fuse accessory storage feeding clamp 19 and a fuse accessory grouping installation mechanism 20. The fuse head cone conveying mechanism 17 realizes automatic feeding of the sharp cone cap body 1 and is connected to the fuse main body 2 with a nut on the other side for feeding, the cone head is parallel to the stretcher track 46 to convey the sharp cone cap body 1, the cone head side conveying belt 47 is laterally righted and pushed, the cone head limiting lifting head 48 moves downwards to realize separation, meanwhile, a workpiece with an upward cone end is pressed downwards to adjust the number, the cone head n-type chuck 49 presses downwards, the cone head rear side inclined wedge 50 retreats and separates, the cone head forward movement adjusting stop lever 51 utilizes the difference between the conicity and the cylindrical part, the cone head lifting stop cone sleeve 52 presses downwards to hit the needle sleeve rod 6 to realize positioning, the cone head swinging mechanical arm 53 realizes control driving, the cone head rotating swing rod 54 is linked with the mechanical arm, the cone head swings the cone sleeve head 55 to enable the sharp cone cap body 1 to swing to be in a horizontal state and drive forward movement and fuse main body assembly, the cone head output end 56 realizes output of the sharp cone cap body, the conical head guide inclined plane 57 is used for centering the conical head to press the herringbone seat 58 downwards to realize centering of the horizontal cap body, and the conical head bottom pushing part 59 is preferably used for realizing forward conveying of the workpiece. The invention realizes the direction adjustment and detection of the workpiece and realizes the automatic centering and active feeding assembly of the workpiece. The female loading attachment of back of the body 18 has realized the connection of female piece of the back of the body 3 and has utilized the outside wall slot to realize locking, female storage channel of the back of the body 60 has realized deciding the direction through female technology logical groove 61 of the back of the body, female back push rod 62 of the back of the body, female transverse vibration guide slot 63 of the back of the body, female transverse push rod spare 64 of the back of the body, female horizontal pushing plate 65 of the back of the body, female top height slant baffle 66 of the back of the body, female transfer station 67 of the back of the body, female vertical spring ejector pin 68 of the back of the body, female head 69 of the back of the body realizes promoting soon, female inserting claw 70 of the back of the body realizes location and rotary drive installs on the screw thread, female inserting gap 71 of the back of the body realizes the adaptation, female vertical spring ejector pin 72 of the back of the body, female center. The invention realizes the feeding, the turning transmission and the centering transmission of the back female part 3 and the rotary installation. The fuse accessory storage feeding clamp 19 realizes feeding of the stopping piece 4, the stopping rotary tray 76 realizes rotary replacement of a material rod at a stopping and material-spitting station 78, the stopping and material-feeding station 79 is changed, a lifting nut is prefabricated on a stopping and material-storing insertion rod 77 to ensure that the stopping piece is positioned at the upper end of the rod, a stopping and material-spitting lifting seat 80 realizes one-by-one feeding and stopping and material-spitting process notch 82 to avoid blocking, a stopping and one-way upward swinging blocking door 84 realizes upward swinging and one-way feeding through a stopping and lower stopping seat 85, a fork head is separated through a grid plate and a stopping and pushing ejection rod 86, a stopping outlet limits a channel 87 to realize one-by-one single output, and the lever principle is utilized to avoid reverse feeding output. The invention realizes the continuous feeding and storage of the retaining piece 4 and the feeding one by one after the detection. The fuze accessory group installation mechanism 20 feeds the backstop 4 to the tail part of the pointed cone cap body 1, the backstop adjustment first rotating arm 88 rotates, the backstop adjustment first clamping frame claw 89 is inserted into the groove, and the workpiece is centered through the backstop adjustment first downward pressing elastic sheet 92. The transmission and direction adjustment of the workpiece are realized by utilizing the meshing principle of the gear rack and the gear. The installation of the retaining piece is realized through the retaining adjustment second rotary telescopic arm 94, the positioning automatic alignment is realized through the retaining adjustment second taper head 95, the retaining adjustment second pushing sliding sleeve 96 is installed on the workpiece through the retaining adjustment second pushing-out hand 100 or a self-contained push rod mechanism, and the retaining adjustment second n-type pressing finger 98 is centered. The invention realizes the engagement, the connection and the assembly of the retaining piece 4 after the position is adjusted.

Claims

1. An apparatus for assembling a letter pipe fitting, comprising: for assembling the fitting to the fuse body (2); the device comprises a fuse head cone conveying mechanism (17), a back nut feeding device (18), a fuse accessory storage and feeding clamp (19) and a fuse accessory grouping installation mechanism (20) which are distributed in sequence;

the fuse head cone conveying mechanism (17) is used for inserting the pointed cone cap body (1) into the fuse main body (2) in the forward direction;

a back female feeding device (18) for mounting the back female piece (3) to the thread part on the fuse main body (2);

the fuse accessory storage feeding clamp (19) is used for feeding the retaining pieces (4) one by one;

the fuse accessory group mounting mechanism (20) is used for mounting the retaining pieces (4) on the retaining grooves (8) on the fuse main body (2) in a reverse direction one by one and is in pressure contact with the back female piece (3).

2. A letter fitting assembly device as claimed in claim 1, wherein: wherein the content of the first and second substances,

a fuse head cone conveying mechanism (17) which comprises a cone head parallel stretcher track (46) with a longitudinal channel in the middle;

a cone head limiting lifting head (48) controlled by a mechanical arm is arranged above the cone head parallel stretcher track (46), a cone head rear side wedge (50) with a large upper part and a small lower part is arranged at the back side of the cone head limiting lifting head (48), and a cone head n-type clamping head (49) is lifted and lowered at the front side of the cone head limiting lifting head (48);

cone-head-side conveying belts (47) for laterally shifting a side shifting plate of the cone-head body (1) are symmetrically arranged on two sides above the cone-head parallel stretcher track (46), and a cone-head bottom pushing part (59) is arranged below the cone-head parallel stretcher track (46); push plates used for longitudinally pushing the lower part of the pointed cone cap body (1) are distributed above the pushing part (59) at the bottom of the cone head;

cone head forward adjusting stop rods (51) are symmetrically arranged on two sides above the cone head parallel stretcher track (46);

when the pointed cone cap body (1) is vertically placed on the stretcher track (46) with the cone head parallel to the stretcher track, when the pointed end faces downwards, the outer diameter of the striker loop bar (6) is smaller than the gap between the neutral positions of the cone head forward moving adjusting gear bars (51); when the tip is upward, the outer diameter of the corresponding part of the lower part of the tip is larger than the neutral space interval of the cone head forward adjusting gear rod (51);

a conical head swinging mechanical arm (53) is arranged on one side of the conical head parallel to the output end of the stretcher track (46), a conical head rotating swing rod (54) is rotated on the conical head swinging mechanical arm (53),

a conical head swinging conical sleeve head (55) is arranged at the cantilever end of the conical head rotating swing rod (54);

a conical head lifting gear taper sleeve (52) is lifted above the conical head parallel stretcher track (46);

a conical head guide inclined plane (57) is arranged in front of a conical head output end (56) of the conical head parallel stretcher track (46), and a conical head centering downward pressing herringbone seat (58) is arranged below the conical head guide inclined plane (57);

the pointed cone cap body (1) is vertically placed on the stretcher track (46) with the cone head parallel to the stretcher track to longitudinally advance, and the lower part of the pointed cone cap body (1) is positioned in the longitudinal channel;

when the tip end faces downwards, the neutral position of the conical head forward adjusting gear rod (51) guides the striker pin sleeve rod (6) to move forwards; when the tip end is upward, the neutral position of the cone head forward adjusting stop rod (51) blocks the forward movement of the upper tip end of the cone cap body (1), but the forward movement of the lower firing pin sleeve rod (6) enables the cone cap body (1) to incline; the conical head n-type clamping head (49) presses the tip end downwards to the position below the conical head parallel stretcher track (46), and meanwhile, a wedge (50) on the rear side of the conical head blocks and pushes the pointed conical cap body (1) backwards to retreat to generate a gap, so that the adjustment is realized;

the cone head lifting gear taper sleeve (52) presses down the top of the subsequent firing pin sleeve rod (6) to be blocked from advancing;

a cone head swinging mechanical arm (53) in front of a cone head lifting gear cone sleeve (52) controls a cone head swinging cone sleeve head (55) to sleeve the tail part of a firing pin sleeve rod (6), the cone head rotates towards a swing rod (54), the needle sleeve rod (6) is horizontally placed on a stretcher track (46) parallel to the cone head and is longitudinally pushed to the position below a cone head centering downward pressing herringbone seat (58) and moves forward to be inserted into the left end part of the fuse main body (2); the conical head is centered and pressed down on the herringbone seat (58) to center, position and advance the pointed cone cap body (1).

3. A letter fitting assembly device as claimed in claim 1, wherein: the back nut feeding device (18) comprises a back nut storage channel (60) which is horizontally or obliquely and longitudinally arranged downwards; a back female piece (3) is prestored in the back female storage channel (60);

back nut process through grooves (61) are formed in the periphery of the back nut storage channel (60) to be matched with the outer side wall grooves (13) in a protruding mode;

a back nut rear push rod (62) is arranged at the inlet of the back nut storage channel (60) to push the back nut piece (3) fed by the feeding material to move forwards;

an input end of a back nut transverse vibration guide groove (63) is transversely arranged at an outlet of the back nut storage channel (60), one end of a back nut transfer station (67) is arranged at an output end of the back nut transverse vibration guide groove (63), and the other end of the back nut transfer station (67) is connected with an input end of a back nut longitudinal channel (75);

a push rod is arranged at the back nut transfer station (67) to send the back nut piece (3) to the input end of the back nut longitudinal channel (75);

a back female transverse push rod piece (64) is arranged on one side of the input end of the back female transverse vibration guide groove (63), and the back female transverse push rod piece (64) is connected with a back female transverse push plate (65) moving in the back female transverse vibration guide groove (63);

an outlet of the carrier storage channel (60) is opened or shielded on one end surface of the carrier transverse pushing plate (65);

a back female swing auxiliary baffle plate (74) is arranged at the input end of the back female longitudinal channel (75) in a swing mode, when the back female swing auxiliary baffle plate swings, the back female pieces (3) are output one by one, and when the back female swing auxiliary baffle plate is vertically placed, the front end face of the back female piece (3) fed from the back female transverse vibration guide groove (63) is assisted to be straightened; the front end surface of the back female transverse pushing plate (65) is provided with a larger opening to be matched with the vertical rear end surface of the back female piece (3);

the back nut transfer station (67) is arranged between the output end of the back nut transverse vibration guide groove (63) and the input end of the back nut longitudinal channel (75);

a back nut longitudinal spring ejector rod (68) is arranged on one side, opposite to the input end of the back nut longitudinal channel (75), of the back nut transfer station (67), a back nut rotating head (69) is arranged at the end part of the back nut longitudinal spring ejector rod (68), and a back nut inserting claw (70) is arranged at the end part of the back nut rotating head (69) and is inserted into the outer side wall groove (13); back female insertion gaps (71) are formed between the back female insertion claws (70) to be matched with the protrusions between the outer side wall grooves (13);

a back nut longitudinal spring ejector rod (72) is arranged at the center of the back nut insertion claw (70), and a back nut central ejector head (73) is arranged at the end part of the back nut longitudinal spring ejector rod (72) to be aligned with a central hole of the back nut (3);

a back female top height inclined baffle (66) is transversely and obliquely arranged above the output end of the back female transverse vibration guide groove (63), and the distance from the lower end of the back female top height inclined baffle to the upper bottom surface of the back female transverse vibration guide groove (63) is between the opposite side distance and the opposite angle distance of the hexagonal back female piece (3);

the back female piece (3) is stored in the back female storage channel (60), and the bulges between the outer side wall grooves (13) are positioned in the back female process through grooves (61); a back nut rear push rod (62) pushes the back nut piece (3) fed by the feeding to move forwards to the input end of a back nut transverse vibration guide groove (63); the back nut transverse push rod piece (64) drives the back nut transverse push plate (65) to move in the back nut transverse vibration guide groove (63), so that the back nut piece (3) moves forwards to a back nut transfer station (67), the front end face of the back nut piece (3) is attached to the back nut swing auxiliary baffle (74), and meanwhile, the outlet of the back nut process through groove (61) is shielded; in the vibration forward movement, the back female piece (3) is adjusted to be downward facing on one side by a back female top height inclined baffle (66);

at a back nut transfer station (67), a back nut longitudinal spring ejector rod (68) moves forward and rotates to adjust the angle through a back nut rotating head (69), so that a back nut inserting claw (70) is inserted into the outer side wall groove (13) and passes through a back nut central ejector head (73) to be centered with a back nut central hole (3);

in the back female longitudinal channel (75), the back female piece (3) is output to the inner cavity (12) of the main body through the back female swing auxiliary baffle (74) which is pushed upwards; the back nut screwing head (69) rotates to screw the back nut (3) on the firing pin sleeve rod (6).

4. A letter fitting assembly device as claimed in claim 1, wherein: wherein the content of the first and second substances,

the fuse accessory storage feeding clamp (19) comprises a backstop rotating tray (76) which is arranged in a rotating mode; the retaining rotary tray (76) is provided with a retaining material-spitting station (78) and a retaining material-feeding station (79); a backstop storage inserted rod (77) is vertically distributed on the backstop rotating tray (76), and a backstop piece (4) with an opening splayed contact piece (15) facing downwards is sleeved on the backstop storage inserted rod (77);

a retaining feeding station (79) for receiving the retaining piece (4) falling and output in the previous process;

a stopping and spitting lifting seat (80) is lifted at a stopping and spitting station (78), a stopping and spitting L-shaped supporting fork (81) is horizontally stretched on the stopping and spitting lifting seat (80), and a stopping and spitting process notch (82) with the width larger than the outer diameter of a stopping and storing inserted rod (77) and smaller than the outer diameter of an opening elastic ring sheet (14) is arranged on the stopping and spitting L-shaped supporting fork (81);

a backstop output channel is arranged at the backstop material-spitting station (78) to receive the backstop piece (4) sent out by the backstop material-spitting L-shaped supporting fork (81);

the backstop output channel is a backstop outlet limiting channel (87) with a gap passing through the backstop (4);

the front opening of the output end of the stop outlet limiting channel (87) is arranged, and a process channel is arranged below the output end of the stop outlet limiting channel (87), so that the next process can be lifted into the stop piece (4) from the process channel, and the stop piece (4) can be output from the front opening forwards;

the last procedure comprises a vibration feeding disc for scattering and storing the retaining pieces (4) and a vibration channel for feeding one by one;

the retaining storage inserted rod (77) ascends and descends to form a lower support nut seat, and after a retaining piece (4) is taken down or falls down on the retaining storage inserted rod (77), the lower support nut seat ascends or descends by a corresponding height;

the fuse accessory storage and feeding clamp (19) comprises a stop single upward swing stop door (84) arranged at the bottom of a stop single input station (83) of a stop single outlet limiting channel (87), and a stop single downward stop seat (85) for preventing the stop single upward swing stop door (84) from swinging downward is arranged below the stop single upward swing stop door (84); a backstop material-spitting L-shaped supporting fork (81) is arranged below the backstop unidirectional upper swing stop gate (84);

a backstop push ejector rod (86) is further arranged at the backstop single input station (83), and the backstop push ejector rod (86) is used for outputting the backstop piece (4) from the upside of the backstop unidirectional upward swing stop gate (84); a grid plate is arranged at a single stopping input station (83), the grid is matched with a stopping spitting process notch (82) and blocks the stopping piece (4) from being taken out;

the retaining piece (4) falls down from the vibrating feeding tray to a retaining storage insert rod (77) positioned at a retaining feeding station (79) through a vibrating channel for feeding one by one;

the retaining rotary tray (76) sends a retaining storage insert rod (77) in which the retaining piece (4) is stored to a retaining material-ejecting station (78);

at a stopping and material-delivering station (78), a stopping and material-delivering L-shaped supporting fork (81) extends to a stopping and storing inserted link (77), a stopping piece (4) at the uppermost layer is lifted to leave the stopping and storing inserted link (77), then the upper lifting is continued to make a stopping single-direction swinging stop gate (84) swing upwards, and the stopping piece (4) comes above a stopping single input station (83); the check single upward swing stop gate (84) swings downward and closes through self weight, and the check spitting L-shaped support fork (81) enters the grid plate; the anti-return material-spitting L-shaped supporting fork (81) retreats from the grid and keeps the anti-return piece (4) on the anti-return single-upward swing stop door (84); the backstop push ejector rod (86) forwards sends out the backstop piece (4) along the backstop outlet limiting channel (87);

when the backstop piece (4) with the upward opening splayed contact piece (15) lifted by the backstop spitting L-shaped supporting fork (81) is contacted with the lower surface of the backstop one-way upward swinging stop gate (84), the contact position of the backstop piece is close to the root of the backstop one-way upward swinging stop gate (84), so that the rising resistance of the backstop spitting L-shaped supporting fork (81) is increased, and the false alarm is considered.

5. A letter fitting assembly device as claimed in claim 1, wherein: the fuse accessory group mounting mechanism (20) comprises a plurality of stop adjusting first rotating arms (88) which rotate on concentric vertical surfaces; a backstop adjusting first clamping frame claw (89) is arranged at the end part of each backstop adjusting first rotating arm (88) so as to be clamped in the corresponding outer side wall groove (13) of the backstop piece (4); the first anti-backing adjustment rotating arm (88) rotates to sequentially pass through an anti-backing adjustment first feeding station (90), an anti-backing adjustment first middle station (91) and an anti-backing adjustment connecting station (93); the length of each paw of the first clamping frame paw (89) is adjusted by stopping and adjusting;

in a first feeding station (90) for stopping adjustment, a first rotating arm (88) for stopping adjustment is arranged upwards to receive a stopping piece (4) fed in the previous process, and an open splayed contact piece (15) is arranged towards the rotating center;

in a first stopping adjustment intermediate station (91), a first stopping adjustment rotating arm (88) is obliquely arranged upwards, a first stopping adjustment lower pressing elastic sheet (92) is obliquely arranged, and the lower end of the first stopping adjustment lower pressing elastic sheet (92) is used for contacting with a stopping piece (4) so as to press the stopping piece (4) rightly;

in the stopping adjustment connecting station (93), a stopping adjustment first rotating arm (88) is horizontally arranged and used for horizontally sending out a stopping piece (4);

a horizontal pushing-out manipulator is arranged at the stopping adjustment connecting station (93);

the fuse accessory group mounting mechanism (20) further comprises a plurality of stop adjusting second rotary telescopic arms (94) which rotate on concentric vertical surfaces; a backstop adjusting second taper head (95) is arranged at the end part of the backstop adjusting second rotary telescopic arm (94), a backstop adjusting second pushing sliding sleeve (96) is radially and movably arranged on the backstop adjusting second rotary telescopic arm (94), and the backstop adjusting second pushing sliding sleeve (96) is close to or far away from the backstop adjusting second taper head (95); the backstop piece (4) is clamped on the conical surface of the backstop adjusting second conical head (95);

the backstop adjustment second rotary telescopic arm (94) rotates to sequentially pass through a backstop adjustment connecting station (93), a backstop adjustment second middle station (97) and a backstop adjustment second output station (99);

at a stopping adjustment connecting station (93), a stopping piece (4) sent in the previous process is received;

a second n-type press finger (98) for stopping adjustment is arranged at a second intermediate station (97) for stopping adjustment so as to press the stopping piece (4) on the conical surface of the second conical head (95) for stopping adjustment;

in a backstop adjustment second output station (99), a backstop adjustment second rotary telescopic arm (94) extends into the main body inner cavity (12) and is abutted against the end face of the firing pin inner cavity (9);

the backstop adjusting second pushing sliding sleeve (96) pushes the backstop member (4) to the backstop groove (8) from the backstop adjusting second taper head (95);

a backstop adjusting second pushing-out hand (100) is arranged at the backstop adjusting second output station (99); the outer side wall of the backstop adjusting second taper head (95) is distributed with process grooves, and the inner cavity of the backstop adjusting second pushing sliding sleeve (96) is provided with a process plate entering and exiting the process grooves;

in a stopping adjustment connecting station (93), a stopping adjustment first clamping frame claw (89) and a stopping adjustment second taper head (95) are used for realizing the connection of a stopping piece (4);

the stopping adjustment first feeding station (90) is provided with an output end of a fuse accessory storage feeding clamp (19);

a stop output channel is arranged at the stop spitting station (78) to receive the stop piece (4) sent out by the stop spitting L-shaped supporting fork (81).

6. A letter pipe fitting assembling process is characterized in that: for assembling the fitting to the fuse body (2); the process comprises the following steps of,

s1, the nose cone transmission mechanism (17) inserts the nose cone cap body (1) into the main body (2) of the fuse in the forward direction;

s2, the back female piece feeding device (18) is used for installing the back female piece (3) on the threaded part of the fuse main body (2);

s3, the fuse accessory storage feeding clamp (19) feeds the retaining pieces (4) one by one;

and/or S4, the fuse accessory group mounting mechanism (20) is used for mounting the retaining pieces (4) on the retaining grooves (8) on the fuse main body (2) in a reverse direction one by one and is in pressure contact with the back female piece (3).

7. A letter pipe fitting assembling process as claimed in claim 6, wherein: wherein, the following steps are included in S1;

s1.1, vertically placing a pointed cone cap body (1) on a stretcher track (46) with a cone head parallel to the stretcher track to longitudinally advance, wherein the lower part of the pointed cone cap body (1) is positioned in a longitudinal channel; secondly, when the tip end faces downwards, the neutral position of the cone head forward adjusting gear rod (51) guides the firing pin sleeve rod (6) to move forwards, when the tip end faces upwards, the neutral position of the cone head forward adjusting gear rod (51) blocks the tip end at the upper part of the cone cap body (1) to move forwards, but the lower firing pin sleeve rod (6) moves forwards to enable the cone cap body (1) to incline; thirdly, the conical head n-type clamping head (49) presses the tip end downwards to the position below the conical head parallel stretcher track (46), and meanwhile, the conical head rear side wedge (50) blocks and pushes the pointed conical cap body (1) to retreat to generate a gap, so that the adjustment is realized; then, the cone head lifting gear taper sleeve (52) presses down the top of the subsequent firing pin sleeve rod (6) to be blocked from advancing;

s1.2, firstly, a cone head swinging mechanical arm (53) in front of a cone head lifting gear cone sleeve (52) controls a cone head swinging cone sleeve head (55) to be sleeved with the tail part of a firing pin sleeve rod (6); then, the conical head rotates to the swing rod (54), the needle sleeve rod (6) is horizontally placed on the conical head parallel stretcher track (46) and longitudinally pushed to the position below the conical head centering downward pressing herringbone seat (58) and moves forward to be inserted into the left end part of the fuse main body (2), and the conical head centering downward pressing herringbone seat (58) centers, positions and moves forward the pointed conical cap body (1).

8. A letter pipe fitting assembling process as claimed in claim 6, wherein: wherein, the following steps are included in S2;

s2.1, firstly, storing a back female part (3) in a back female storage channel (60), wherein the protrusion between the outer side wall grooves (13) is positioned in the back female process through groove (61); then, a back nut rear push rod (62) pushes the back nut piece (3) fed by the feeding to move forwards to the input end of a back nut transverse vibration guide groove (63); secondly, the back female transverse push rod piece (64) drives the back female transverse push plate (65) to move in the back female transverse vibration guide groove (63), the back female piece (3) moves forwards to a back female transfer station (67), the front end face of the back female piece (3) is attached to a back female swinging auxiliary baffle (74), the outlet of the back female technological through groove (61) is shielded, and meanwhile, in the process of vibration movement forwards, the back female piece (3) is adjusted to be downward in one side face by a back female top height inclined baffle (66);

s2.2, at a back nut transfer station (67), enabling a back nut longitudinal spring ejector rod (68) to move forward and rotate to adjust the angle through a back nut rotating head (69), so that a back nut inserting claw (70) is inserted into the outer side wall groove (13) and is centered with a back nut central ejector head (73);

s2.3, firstly, in the back female longitudinal channel (75), the back female piece (3) is output to the inner cavity (12) of the main body through the back female swing auxiliary baffle (74) which is pushed upwards; the back nut turning head (69) is then rotated to screw the back nut (3) onto the striker rod (6).

9. A letter pipe fitting assembling process as claimed in claim 6, wherein: wherein, the following steps are included in S3;

s3.1, firstly, the vibration feeding disc for scattering and storing the retaining pieces (4) is vibrated and rotated, so that the retaining pieces (4) move forwards through vibration channels for feeding one by one according to preset regulations; then, at a stopping feeding station (79), a stopping piece (4) which falls and is output in the previous process is received; then, the material is rotated to a backstop material-spitting station (78) through a backstop rotating tray (76);

s3.2, in a stopping and spitting station (78), firstly, a stopping and spitting L-shaped supporting fork (81) extends to a stopping and storing inserted link (77), a stopping piece (4) at the uppermost layer is lifted to leave the stopping and storing inserted link (77), then the upward jacking is continued to enable a stopping single-direction upward swinging stop gate (84) to swing upwards, and the stopping piece (4) comes above a stopping single input station (83); then, the stop single upward swing stop gate (84) swings downward and closes through self weight, and the stop spitting L-shaped support fork (81) enters a grid plate; secondly, the anti-return material-spitting L-shaped supporting fork (81) retreats from the grid and keeps the anti-return piece (4) on the anti-return single-upward swing stop door (84); thirdly, the stopping push ejector rod (86) forwards sends out the stopping piece (4) along the stopping outlet limiting channel (87) through the stopping outlet limiting channel (87);

10. A letter fitting assembly device as claimed in claim 6, wherein: wherein, the following steps are included in S4;

s4.1, firstly, at a first feeding station (90) for stopping adjustment, swinging a first rotating arm (88) for stopping adjustment upwards and laterally, inserting a first clamping frame claw (89) for stopping adjustment into a process channel at the output end of a limited channel (87) at a stopping outlet, pulling out a stopping piece (4) from an opening in front of the output end of the limited channel (87) at the stopping outlet and rotating the stopping piece, and requiring an open splayed contact piece (15) to be arranged towards a rotating center; then, at a first intermediate position (91) for stopping adjustment, the lower end of a first lower pressing elastic sheet (92) for stopping adjustment is contacted with the rotating stopping piece (4), so that the stopping piece (4) is pressed rightly;

s4.2, firstly, horizontally pushing out the retaining piece (4) on the retaining adjustment first rotating arm (88) by a horizontal pushing manipulator at a retaining adjustment connecting station (93); then, the backstop adjusting second taper head (95) receives the backstop members (4) which are respectively sent out; secondly, in a second stopping adjustment intermediate station (97), a second n-shaped stopping adjustment pressing finger (98) presses the rotating stopping piece (4) to the conical surface of a second stopping adjustment taper head (95); thirdly, at a stopping adjustment second output station (99), a stopping adjustment second rotary telescopic arm (94) extends into the main body inner cavity (12) and is abutted against the end face of the firing pin inner cavity (9); then, the backstop adjusting second pushing sliding sleeve (96) pushes the backstop member (4) to the backstop groove (8) from the backstop adjusting second taper head (95).