CN114932400B

CN114932400B - Semi-automatic processing system suitable for bolt tightening

Info

Publication number: CN114932400B
Application number: CN202210523211.8A
Authority: CN
Inventors: 张友明; 龙启华; 陈国华
Original assignee: Ningbo Haojia Electrical Appliance Co ltd
Current assignee: Ningbo Haojia Electrical Appliance Co ltd
Priority date: 2022-05-13
Filing date: 2022-05-13
Publication date: 2023-06-30
Anticipated expiration: 2042-05-13
Also published as: CN114932400A

Abstract

The invention discloses a semi-automatic processing system suitable for bolt tightening, which comprises a rotary operating platform, wherein the rotary operating platform is respectively provided with: the device comprises a calibration device, a tightening device and a detection device; the calibrating device comprises a plurality of positioning rods which are arranged along the vertex according to a preset shape, and the positioning rods are driven downwards so that the end parts of the positioning rods are inserted into the workpiece screw holes to be aligned; the tightening device comprises a main body frame, wherein a tightening driving piece and a connecting pipe are fixed on the main body frame through a lifting guide rail mechanism, and the bottom end of the connecting pipe is connected with a combined chuck; the detection device comprises a plurality of firing pin assemblies which are distributed along the top point according to a preset shape, wherein the firing pin assemblies comprise striking rods and copper rods which are axially and slidably arranged. The cylinder calibration device is convenient for calibrating the workpiece; tightening the bolts through a tightening device; the detection device is used for detecting the workpiece after the tightening operation is completed, so that the final machining quality of the workpiece is improved, and the use effect is good.

Description

Semi-automatic processing system suitable for bolt tightening

Technical Field

The invention relates to the technical field of part machining, in particular to a semi-automatic machining system suitable for bolt tightening.

Background

Bolts are known as a type of cylindrical threaded fastener consisting of a head and a shank, for fastening two parts with through holes, in the form of a bolt connection, the bolt tightening machine being a machine for screwing the bolt into the carrier. The assembly chain generally adopts manual flow operation, namely, the machined workpieces are manually combined, and then the bolts are fixed through an electric bolt machine. Because the working procedure is simpler and the difficulty of the hand is extremely low, a plurality of factories adopt a manual assembly line mode. Compared with manual assembly, the mechanical equipment is utilized to screw bolts, so that the working efficiency can be greatly improved, the labor cost can be reduced, and the quality after assembly is better than that of manual operation. Therefore, the processing of a workpiece by an automated apparatus has become a necessary trend.

The present semi-automatic processing system suitable for bolt tightening, such as chinese patent with the name of cn202020699917.X being a "bolt tightening device", discloses a bolt tightening device, which includes: the torque gun comprises a vertically extending mounting rod, a moving assembly and a torque gun, wherein one end of the moving assembly is connected with the mounting rod in a vertically sliding mode and can rotate around the mounting rod, the torque gun is fixed at the other end of the moving assembly, and the gun head of the torque gun faces downwards vertically. By utilizing the device, operators do not need to bear reverse twisting force when the holding tool is operated, the working strength is reduced, and the installation efficiency and the installation quality of the bolts are improved.

The prior art has the following defects: the existing semiautomatic processing that is applicable to bolt tightening does not have the device that calibrates for the bolt at the in-process that the bolt was tightened, appears the condition that the bolt inclines easily at the in-process that the bolt was tightened to influence the quality of screwing up, and after tightening work is accomplished, does not have the device of testing for the bolt specially, thereby can't ensure operating quality.

Disclosure of Invention

The invention aims to provide a semi-automatic processing system suitable for bolt tightening, so as to solve the problems in the background art.

In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a semi-automatization processing system suitable for bolt tightening, includes rotary operation panel, be provided with respectively on the rotary operation panel: the device comprises a calibration device, a tightening device and a detection device; the calibrating device comprises a plurality of positioning rods which are arranged along the vertex according to a preset shape, and the positioning rods are driven downwards so that the end parts of the positioning rods are inserted into the workpiece screw holes to be aligned; the tightening device comprises a main body frame, wherein a tightening driving piece and a connecting pipe are fixed on the main body frame through a lifting guide rail mechanism, and the bottom end of the connecting pipe is connected with a combined chuck; the detection device comprises a plurality of firing pin assemblies which are distributed along the top point according to a preset shape, wherein the firing pin assemblies comprise striking rods and copper rods which are axially and slidably arranged.

Further, the striker assemblies are driven to move downwards so that the striking rods are pushed by the workpiece bolts to be in contact with the copper rods, the calibrating device further comprises a driving unit and a carrier, the positioning rods are mounted on the carrier, and the driving unit is used for driving the carrier to move in the vertical direction.

Further, a detection unit is arranged on the carrier and used for controlling the driving unit to drive the carrier to descend to a preset station.

Further, an anti-bolting piece is arranged at the end part of the positioning rod and is used for being inserted into the workpiece screw hole.

Further, the combined chuck comprises a mounting joint, a driving through hole is vertically formed in the mounting joint, a feeding through hole communicated with the driving through hole is obliquely formed in one side of the mounting joint, and chuck mechanisms are symmetrically hinged to two sides of the mounting joint.

Further, the chuck mechanism comprises a joint clamp valve, the middle section of the joint clamp valve is rotationally connected to the side edge of the installation joint through a rotating shaft, a supporting spring is connected between the top of the joint clamp valve and the installation joint, and a clamping notch is formed in the inner side of the bottom end of the joint clamp valve.

Further, the lifting guide rail mechanism comprises a polish rod fixed on one side of the main body frame, the polish rod is connected with a first installation frame and a second installation frame in a sliding manner from top to bottom, the motor is fixed on the first installation frame through the fixing frame, the connecting pipe is correspondingly fixed on the second installation frame, the top of the main body frame is further fixed with a hydraulic telescopic rod, and the movable end of the hydraulic telescopic rod is connected with the first installation frame and the second installation frame through a connecting rod.

Further, the telescopic adjusting piece comprises a sleeve adjusting piece, one end of the sleeve adjusting piece is connected with a transmission shaft through a first universal joint coupling, the transmission shaft is connected with a motor, the other end of the sleeve adjusting piece is connected with an electric control telescopic rod through a second universal joint coupling, and the movable end of the electric control telescopic rod is connected with a screwdriver rod.

Further, the sleeve adjusting piece comprises a sleeve, the two sides of the sleeve are symmetrically provided with strip-shaped openings, a core rod is movably embedded in the sleeve, one end of the core rod, which is positioned at the inner side of the sleeve, is provided with a transverse limiting rod, two ends of the transverse limiting rod extend to the outer side of the strip-shaped openings, a buffer spring is further sleeved on the core rod, and the elastic force of the buffer spring is used for driving the core rod to move towards the outer side of the sleeve.

Further, the firing pin assembly comprises a cylinder body, an expansion pipe is arranged in the cylinder body, a rubber hose is arranged in the expansion pipe, and the copper rod is fixed in the expansion pipe through the rubber hose; the firing pin assembly further comprises a guide sliding sleeve and an impact rod, wherein the guide sliding sleeve is fixed in the cylinder body through an expansion ring arranged on the outer wall of the guide sliding sleeve, and the impact rod is arranged in the guide sliding sleeve in a sliding mode and is away from the copper rod under the dead weight.

Compared with the prior art, the invention has the beneficial effects that: according to the semiautomatic processing system suitable for tightening the bolts, through the matching among the calibration device, the positioning rods and the threaded holes, the positioning rods distributed at multiple points are utilized to move downwards and are inserted into the bolt holes on the workpiece, so that the workpiece can be quickly aligned, and the bolts are prevented from inclining in the tightening process; through the cooperation among the tightening device, the driving piece and the connecting pipe, the installation joint is provided with a feeding through hole which is communicated with the driving through hole, joint clamping petals are symmetrically arranged on two sides of the installation joint in a rotating mode, when the bolt tightening processing is carried out, the cooperation feeding connecting pipe is communicated with the feeding through hole to realize pneumatic conveying of the bolt, the bolt enters the driving through hole through the feeding through hole, then the bottom ends of the two joint clamping petals are attached under the action of the supporting spring to enable the two clamping notch to be abutted to form a bolt hole to limit the conveyed bolt, the bolt is driven to rotate and move downwards by tightening the driving piece to be installed, and the two joint clamping petals are automatically extruded to open to realize bolt separation when the bolt rotates and moves downwards, so that the automatic feeding and tightening operation is realized; through the cooperation between detection device, combination chuck, firing pin subassembly, striking pole and the copper pole, a plurality of firing pin subassemblies move down to all or arbitrary several striking poles are pushed down by the bolt and are moved up and contact with the copper core pole to can stop to move down and reset, when all striking poles are pushed down by the bolt and are moved up and contact with the copper core pole, the bolt tightening accords with the requirement, if one or arbitrary several striking poles receive the bolt first to push down and move up and contact with the copper core pole, then corresponding bolt does not twist fixed position, belong to the inferior needs manual work and handle, improve work quality.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.

FIG. 1 is a schematic diagram of an overall structure according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a calibration device according to an embodiment of the present invention;

FIG. 3 is a schematic view of another view angle structure of the calibration device according to the embodiment of the present invention;

fig. 4 is an exploded view of a tightening detection mechanism according to an embodiment of the present invention;

FIG. 5 is a schematic view of an explosion structure of a striker according to an embodiment of the present invention

Fig. 6 is a schematic view of the overall structure of a tightening device according to an embodiment of the present invention;

fig. 7 is a schematic diagram of an assembly structure of a tightening driving member and a connecting pipe according to an embodiment of the present invention;

FIG. 8 is a schematic view of a telescopic adjuster according to an embodiment of the present invention;

FIG. 9 is a schematic diagram of a back split structure of a combined chuck according to an embodiment of the present invention;

fig. 10 is a schematic diagram of a front split structure of a combined chuck according to an embodiment of the present invention;

FIG. 11 is a schematic diagram of a detection device according to an embodiment of the present invention;

FIG. 12 is a schematic view of a striker according to an embodiment of the present invention;

fig. 13 is a schematic view of an explosion structure of a striker according to an embodiment of the present invention.

Reference numerals illustrate: 1. a main body frame; 2. a polish rod; 3. a hydraulic telescopic rod; 31. a connecting rod; 4. a first mounting frame; 5. a second mounting frame; 6. tightening the driving piece; 61. a motor; 62. a fixing frame; 63. a telescoping adjustment member; 631. a sleeve; 632. a core bar; 633. a transverse limiting rod; 634. a first universal joint coupling; 635. a second universal joint coupling; 636. an electric control telescopic rod; 637. a screwdriver rod; 7. a connecting pipe; 8. a combined chuck; 80. installing a joint; 81. a driving through hole; 811. a feed through hole; 82. a joint clamping flap; 821. a clamping notch; 83. a support spring; 12. a drive plate; 13. a calibration device; 131. a positioning rod; 1311. a bolt-preventing member; 132. a driving unit; 133. a carrier; 134. a detection unit; 14. a tightening device; 15. a detection device; 16. a carrying platform; 17. a striker assembly; 171. a striker rod; 172. a copper rod; 173. a cylinder; 174. an expansion tube; 175. a rubber hose; 176. a sliding guide sleeve; 177. an expansion loop; 18. an electric telescopic rod; 19. a mounting plate; 191. a bracket; 20. and a bearing frame.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1-13, the present invention provides a technical solution: the utility model provides a semi-automatization processing system suitable for bolt tightening, its includes rotary operation panel, is provided with respectively on the rotary operation panel: a calibration device 13, a tightening device 14 and a detection device 15; the alignment device 13 includes a plurality of positioning rods 131 arranged in a predetermined shape along the apex, the plurality of positioning rods 131 being driven downward so that the ends thereof are inserted into the workpiece screw holes to be aligned; the tightening device 14 comprises a main body frame 1, a tightening driving piece 6 and a connecting pipe 7 are fixed on the main body frame 1 through a lifting guide rail mechanism, and the bottom end of the connecting pipe 7 is connected with a combined chuck 8; the detecting device 15 includes a plurality of striker assemblies 17 in a predetermined shape and distributed along the apex, and the striker assemblies 17 include an impact rod 171 and a copper rod 172 which are axially slidably disposed.

Specifically, the semi-automatic processing system suitable for bolt tightening is characterized in that a driving motor and a corresponding transmission mechanism (chain transmission, belt transmission and gear transmission) are arranged in a rotary operating platform in the embodiment so as to drive the rotary operating platform to rotate, thereby being convenient for processing bolts and having good use effect; more specifically, a carrying table 16 is further arranged on the rotary operating table, workpieces are manually placed in the carrying table 16, under the control of a sensor or a timing program, the rotary type automatic positioning device is rotated for 90 degrees to a calibration device 13 to perform an alignment procedure, the rotary type automatic positioning device is rotated for 90 degrees to a tightening device 14 to perform bolt tightening after alignment is completed, the rotary type automatic positioning device is rotated for 90 degrees to a detection device 15 to check bolt tightening degree after the tightening is completed, if the rotary type automatic positioning device does not accord with the standard, an alarm is given (if the rotary type automatic positioning device accords with the standard, the rotary type automatic positioning device does not accord with the standard), finally the rotary type automatic positioning device is rotated for 90 degrees to a manual station, the workpieces meeting or not accord with the standard are manually placed in a classified mode, and then new workpieces to be processed are replaced; in the embodiment, the workpiece is positioned by adopting a plurality of positioning rods 131 which are in a preset shape and are arranged along the vertexes, wherein the preset shape refers to the shape of the plurality of positioning rods 131 after being arranged, the workpiece can be in a polygonal structure such as a triangle, a quadrangle and the like, and the specific shape of the positioning rods is specific to the arrangement of screw holes of the workpiece; the tightening driving piece 6 comprises a motor 61, the output end of the motor 61 is in transmission connection with a telescopic adjusting piece 63, the bottom end of the telescopic adjusting piece 63 is connected with a screwdriver rod 637, and the screwdriver rod 637 is movably embedded in the connecting pipe 7; the combined chuck 8 comprises a mounting joint 80, wherein a driving through hole 81 is vertically formed in the mounting joint 80, a feeding through hole 811 communicated with the driving through hole 81 is obliquely formed in one side of the mounting joint 80, and chuck mechanisms are symmetrically hinged to two sides of the mounting joint 80; when the bolt is screwed, a feed pipe is connected to the feed through hole 811, a pneumatic drive bolt is conveyed into the feed through hole 811 and then enters the drive through hole 81 from the feed through hole 811, wherein the drive through hole 81 is in butt joint with the connecting pipe 7, when the bolt enters the drive through hole 81, the clamping head mechanisms symmetrically hinged on the two sides of the mounting joint 80 automatically clamp and fix the bolt, the bolt is prevented from slipping out of the drive through hole 81, the screw cutter bar 637 is driven by the telescopic adjusting piece 63 to be stretched and embedded into the drive through hole 81 on the mounting joint 80, the lower end of the screw cutter bar 637 is in butt joint with the end of the bolt, the screw cutter bar 637 is driven by the motor 61 to rotate by the telescopic adjusting piece 63, and finally the screw cutter bar 637 is driven by the screw cutter bar to rotate to screw the bolt into the carrier, so that automatic feeding and screwing operation of the bolt are realized, manual feeding of a worker is not needed, and working efficiency is remarkably improved; the detecting device 15 includes a plurality of striker assemblies 17 distributed along the apex in a predetermined shape, the striker assemblies 17 include striking rods 171 slidably disposed in the axial direction and copper rods 172, the striker assemblies 17 in the embodiment include a cylinder 173, an expansion tube 174 is disposed in the cylinder 173, a rubber hose 175 is disposed in the expansion tube 174, the copper rods 172 are fixed in the expansion tube 174 by the rubber hose 175, the striker assemblies 17 further include a slide guide sleeve 176 and the striking rods 171, the slide guide sleeve 176 is fixed in the cylinder 173 by an expansion ring 177 disposed on the outer wall thereof, and the striking rods 171 are slidably disposed in the slide guide sleeve 176 and are separated from the copper rods 172 by self weight; and a plurality of striking rods 171 move downwards to all or any several striking rods 171 move upwards under the pushing of the bolts and are contacted with the copper rods 172, and stop moving downwards and reset, when all striking rods 171 move upwards under the pushing of the bolts and are contacted with the copper rods 172, the bolts are screwed up to meet the requirements, and if one or any several striking rods 171 move upwards under the pushing of the bolts and are contacted with the copper rods 172, the corresponding bolts are not screwed to the fixed positions, which is a defective manual treatment, has a simple structure and is not easy to damage.

The striker assemblies 17 are driven to move downward so that the striking rod 171 is pushed by the workpiece bolt to contact the copper rod 172, and the calibrating device 13 further includes a driving unit 132 and a carrier 133, the positioning rods 131 are mounted on the carrier 133, and the driving unit 132 is used for driving the carrier 133 to move vertically.

Preferably, the calibration device 13 further includes a bolt preventing member 1311 and a carrier 133, the plurality of positioning rods 131 are mounted on the carrier 133, the bolt preventing member 1311 is used for driving the carrier 133 to move vertically, the bolt preventing member 1311 is specifically an electric push rod, a stand of the electric push rod is mounted on the carrier 20, the carrier 20 is mounted on a rotary operating platform, specifically, the bolt preventing member 1311 in the embodiment may be a stepping screw mechanism, the carrier 133 is mounted on a sliding table, and is parallel to the driving disc 12, and is formed by or is a link mechanism, the driving disc 12 is provided with a protruding member, and the protruding member and an input end of the link mechanism are tangent to swing, so as to drive the output end of the link mechanism to swing to drive the carrier 133 to move downwards, or is a driving mechanism known to those skilled in the art.

The combined chuck 8 comprises a mounting joint 80, a driving through hole 81 is vertically formed in the mounting joint 80, a feeding through hole 811 communicated with the driving through hole 81 is obliquely formed in one side of the mounting joint 80, chuck mechanisms are symmetrically hinged to two sides of the mounting joint 80 and comprise joint clamping flaps 82, the middle section position of each joint clamping flap 82 is rotationally connected to the side of the mounting joint 80 through a rotating shaft, a supporting spring 83 is connected between the top of each joint clamping flap 82 and the mounting joint 80, and clamping notches 821 are formed in the inner side of the bottom end of each joint clamping flap 82.

Preferably, the bottom ends of the two joint clamping flaps 82 are attached under the action of the supporting springs 83 so that the two clamping notches 821 are in butt joint to form a bolt hole, the bolt hole is correspondingly communicated with the driving through hole 81, and the diameter of the bolt hole is smaller than the diameter of the end head of the bolt to be installed. The bolt is automatically clamped and fixed by the symmetrically hinged clamping head mechanisms on the two sides of the mounting connector 80 when entering the driving through hole 81, under the action of the supporting spring 83, the top ends of the connector clamping flaps 82 which are rotationally connected to the two sides of the mounting connector 80 are unfolded to two sides, so that the bottom ends of the two connector clamping flaps 82 are attached, namely, the two clamping notches 821 at the bottom ends of the two connector clamping flaps 82 are abutted to form a bolt hole, the diameter of the bolt hole is smaller than the diameter of the end of the bolt to be mounted, the rod section of the bolt protrudes from the bolt hole to the outer side, the head of the bolt is clamped at the transition position between the driving through hole 81 and the bolt hole, the bolt is fixed, slipping is prevented, when the bolt is driven by the screw cutter bar 637 to rotate so as to screw the bolt into the carrier, the bottom ends of the two connector clamping flaps 82 are extruded at the moment, the bottom ends of the two connector clamping flaps 82 are rotationally unfolded, the supporting spring 83 is compressed, and after the bolt is completely separated from the connector clamping flaps 82, the two connector clamping flaps 82 are automatically reset under the action of the supporting spring 83, namely, the two clamping notches at the bottom ends of the two connector clamping flaps 82 are abutted to form the bolt hole 821.

The lifting guide rail mechanism comprises a polish rod 2 fixed on one side of the main body frame 1, the polish rod 2 is connected with a first installation frame 4 and a second installation frame 5 in a sliding manner from top to bottom, a motor 61 is fixed on the first installation frame 4 through a fixing frame 62, a connecting pipe 7 is correspondingly fixed on the second installation frame 5, a hydraulic telescopic rod 3 is further fixed at the top of the main body frame 1, and the movable end of the hydraulic telescopic rod 3 is connected with the first installation frame 4 and the second installation frame 5 through a connecting rod 31.

Preferably, the lifting guide rail mechanism drives the tightening driving piece 6 and the connecting pipe 7 to lift and adjust, namely, the polished rod 2 is provided with two, the first installation frame 4 and the second installation frame 5 are slidably connected on the two polished rods 2, the first installation frame 4 is located above the second installation frame 5, the two are parallel to each other, the motor 61 is fixed on the first installation frame 4 through the fixing frame 62, the connecting pipe 7 is correspondingly fixed on the second installation frame 5, and the two positions are vertically corresponding, and the hydraulic telescopic rod 3 is matched with the connecting rod 31 to drive the first installation frame 4 and the second installation frame 5 to lift and slidably adjust on the polished rod 2.

The telescopic adjusting piece 63 comprises a sleeve adjusting piece, one end of the sleeve adjusting piece is connected with a transmission shaft through a first universal joint coupling 634, the transmission shaft is connected with a motor 61, the other end of the sleeve adjusting piece is connected with an electric control telescopic rod 636 through a second universal joint coupling 635, the movable end of the electric control telescopic rod 636 is connected with a screwdriver rod 637, the sleeve adjusting piece comprises a sleeve 631, two sides of the sleeve 631 are symmetrically provided with strip-shaped openings, a core rod 632 is movably embedded in the sleeve 631, the core rod 632 is located at one end of the inner side of the sleeve 631, two ends of the transverse limiting rod 633 extend to the outer sides of the strip-shaped openings, and a buffer spring is sleeved on the core rod 632 and used for driving the core rod 632 to move towards the outer side of the sleeve 631.

Preferably, when the screw rod 637 is used to drive the screw to rotate so as to screw the screw into the device of the carrier, the screw rod 637 is slowly driven to move downwards by the electric control telescopic rod 636, when the electric control telescopic rod 636 drives the screw rod 637 to move downwards, the error occurs, and the electric control telescopic rod 636 can be compensated by moving the core rod 632 towards the sleeve 631, so that the screw is prevented from being damaged due to the fact that the screw is driven to move downwards by the electric control telescopic rod 636.

The carrier 133 is provided with a detection unit 134, the detection unit 134 is used for controlling the driving unit 132 to drive the carrier 133 to descend to a preset station, and the end part of the positioning rod 131 is provided with a bolt preventing piece 1311, and the bolt preventing piece 1311 is used for being inserted into a workpiece screw hole.

Preferably, the end of the positioning rod 131 is provided with a bolt preventing member 1311, the bolt preventing member 1311 is used for being inserted into a workpiece screw hole, specifically, the bolt comprises a screw rod and a nut, the radius of the positioning rod 131 is always equal to that of the nut, the radius of the screw rod is equal to that of the bolt preventing member 1311, when the electric push rod drives the positioning rod 131 to be inserted into the positioning rod 131, the silica gel elastic block is collided to shrink, the positioning is completed, and the detection unit 134 drives the electric push rod to reset, so that the positioning is completed.

The detecting device 15 further comprises a mounting plate 19, the number of the firing pin assemblies 17 is three at the minimum, and the firing pin assemblies are arranged on the mounting plate 19 along the apexes of the triangle, and the firing pin assemblies are of a triangle structure, and the electric telescopic rod 18 is mounted on a rotary operating table through a bracket 191 because of three-point bolt distribution.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Semi-automatic processing system suitable for bolt tightening, its characterized in that:

including rotary operation panel, be provided with respectively on the rotary operation panel:

calibration device (13): the calibrating device (13) comprises a plurality of locating rods (131), and the locating rods (131) are driven downwards so that the ends of the locating rods are inserted into the screw holes of the workpiece to be aligned;

tightening device (14): the device comprises a main body frame (1), wherein a tightening driving piece (6) and a connecting pipe (7) are fixed on the main body frame (1) through a lifting guide rail mechanism, and the bottom end of the connecting pipe (7) is connected with a combined chuck (8);

detection device (15): comprising a plurality of striker assemblies (17) of a predetermined shape and distributed along an apex, said striker assemblies (17) comprising an impact rod (171) and a copper rod (172) arranged axially slidably;

the firing pin assemblies (17) are driven to move downwards so that the striking rods (171) are pushed by workpiece bolts to be in contact with the copper rods (172), the calibrating device (13) further comprises a driving unit (132) and a carrier (133), the positioning rods (131) are mounted on the carrier (133), and the driving unit (132) is used for driving the carrier (133) to move vertically;

a detection unit (134) is arranged on the carrier (133), and the detection unit (134) is used for controlling the driving unit (132) to drive the carrier (133) to descend to a preset station;

an end of the positioning rod (131) is provided with a bolt preventing piece (1311), and the bolt preventing piece (1311) is used for being inserted into the workpiece screw hole;

the lifting guide rail mechanism comprises a polish rod (2) fixed on one side of the main body frame (1), and the polish rod (2) is horizontally connected with a first mounting frame (4) and a second mounting frame (5) in a sliding manner from top to bottom;

the tightening driving piece (6) comprises a motor (61), the output end of the motor (61) is in transmission connection with a telescopic adjusting piece (63), the bottom end of the telescopic adjusting piece (63) is connected with a screwdriver rod (637), the screwdriver rod (637) is movably embedded in the connecting pipe (7), and the motor (61) is fixed on the first mounting frame (4) through a fixing frame (62);

the connecting pipe (7) is correspondingly fixed on the second mounting frame (5), the top of the main body frame (1) is also fixed with a hydraulic telescopic rod (3), and the movable end of the hydraulic telescopic rod (3) is connected with the first mounting frame (4) and the second mounting frame (5) through a connecting rod (31);

the telescopic adjusting piece (63) comprises a sleeve adjusting piece, one end of the sleeve adjusting piece is connected with a transmission shaft through a first universal joint coupling (634), the transmission shaft is connected with the motor (61), the other end of the sleeve adjusting piece is connected with an electric control telescopic rod (636) through a second universal joint coupling (635), and the movable end of the electric control telescopic rod (636) is connected with a screwdriver rod (637);

the sleeve adjusting piece comprises a sleeve (631), strip-shaped openings are symmetrically formed in two sides of the sleeve (631), a core rod (632) is movably embedded in the sleeve (631), a transverse limiting rod (633) is arranged at one end of the core rod (632) located at the inner side of the sleeve (631), two ends of the transverse limiting rod (633) extend to the outer side of the strip-shaped openings, a buffer spring is sleeved on the core rod (632), and the elastic force of the buffer spring is used for driving the core rod (632) to move towards the outer side of the sleeve (631);

the firing pin assembly (17) comprises a cylinder (173), an expansion pipe (174) is arranged in the cylinder (173), a rubber hose (175) is arranged in the expansion pipe (174), and the copper rod (172) is fixed in the expansion pipe (174) through the rubber hose (175);

the firing pin assembly (17) further comprises a sliding guide sleeve (176) and an impact rod (171), the sliding guide sleeve (176) is fixed in the cylinder body (173) through an expansion ring (177) arranged on the outer wall of the sliding guide sleeve, and the impact rod (171) is slidably arranged in the sliding guide sleeve (176) and is away from the copper rod (172) under the dead weight.

2. A semi-automated processing system adapted for bolt tightening according to claim 1, wherein: the combined chuck (8) comprises a mounting joint (80), a driving through hole (81) is vertically formed in the mounting joint (80), a feeding through hole (811) communicated with the driving through hole (81) is obliquely formed in one side of the mounting joint (80), and chuck mechanisms are symmetrically hinged to two sides of the mounting joint (80).

3. A semi-automated processing system adapted for bolt tightening according to claim 2, wherein: the chuck mechanism comprises a joint clamp flap (82), the middle section of the joint clamp flap (82) is rotationally connected to the side edge of the installation joint (80) through a rotating shaft, a supporting spring (83) is connected between the top of the joint clamp flap (82) and the installation joint (80), and a clamping notch (821) is formed in the inner side of the bottom end of the joint clamp flap (82).